/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the COPYING file, which can be found at the root of the source code       *
 * distribution tree, or in https://www.hdfgroup.org/licenses.               *
 * If you do not have access to either file, you may request a copy from     *
 * help@hdfgroup.org.                                                        *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/*
 * Purpose:    Test H5Ocopy().
 */

#include "testhdf5.h"
#include "H5srcdir.h"

#include "H5Iprivate.h"
#include "H5Pprivate.h"
#include "H5VLprivate.h" /* Virtual Object Layer                     */

#define H5F_FRIEND /*suppress error about including H5Fpkg */
#define H5F_TESTING
#include "H5Fpkg.h" /* File access                          */

/*
 * This file needs to access private information from the H5S package.
 * This file also needs to access the dataspace testing code.
 */
#define H5S_FRIEND /*suppress error about including H5Spkg      */
#define H5S_TESTING
#include "H5Spkg.h" /* Dataspaces                 */

/*
 * This file needs to access private information from the H5P package.
 * This file also needs to access the property list testing code.
 */
#define H5P_FRIEND /*suppress error about including H5Ppkg      */
#define H5P_TESTING
#include "H5Ppkg.h" /* Property Lists             */

/*
 * This file needs to access private information from the H5D package.
 * This file also needs to access the dataset testing code.
 */
#define H5D_FRIEND /*suppress error about including H5Dpkg      */
#define H5D_TESTING
#include "H5Dpkg.h" /* Datasets                 */

/*
 * This file needs to access private information from the H5O package.
 * This file also needs to access the dataspace testing code.
 */
#define H5O_FRIEND /*suppress error about including H5Opkg      */
#define H5O_TESTING
#include "H5Opkg.h" /* Object header             */

static const char *FILENAME[] = {"objcopy_src",  "objcopy_dst",  "objcopy_ext", "objcopy_src2",
                                 "verbound_src", "verbound_dst", NULL};

/* Configuration, really a series of bit flags.  Maximum value is all three
 * bit flags enabled.
 */
#define CONFIG_SHARE_SRC      1
#define CONFIG_SHARE_DST      2
#define CONFIG_SRC_NEW_FORMAT 4
#define CONFIG_DST_NEW_FORMAT 8
#define CONFIG_DENSE          16
#define MAX_CONFIGURATION     31

#define FILE_EXT "objcopy_ext.dat"
/* The fill_old.h5 is generated from gen_old_fill.c in HDF5 'test' directory
 * for version 1.4(after 1.4.3).  To get this data file, simply compile
 * gen_old_fill.c with HDF5 library (before v1.5) and run it. */
#define FILE_OLD_LAYOUT "fill_old.h5"

#define NAME_DATATYPE_SIMPLE         "H5T_NATIVE_INT"
#define NAME_DATATYPE_SIMPLE2        "H5T_NATIVE_INT-2"
#define NAME_DATATYPE_VL             "vlen of int"
#define NAME_DATATYPE_VL_VL          "vlen of vlen of int"
#define NAME_DATASET_SIMPLE          "dataset_simple"
#define NAME_DATASET_SIMPLE2         "dataset_simple_copy"
#define NAME_DATASET_SIMPLE3         "dataset_simple_another_copy"
#define NAME_DATASET_COMPOUND        "dataset_compound"
#define NAME_DATASET_CHUNKED         "dataset_chunked"
#define NAME_DATASET_CHUNKED_SINGLE  "dataset_chunked_single"
#define NAME_DATASET_CHUNKED2        "dataset_chunked2"
#define NAME_DATASET_CHUNKED2_SINGLE "dataset_chunked2_single"
#define NAME_DATASET_CHUNKED3        "dataset_chunked3"
#define NAME_DATASET_CHUNKED3_SINGLE "dataset_chunked3_single"
#define NAME_DATASET_CHUNKED4        "dataset_chunked4"
#define NAME_DATASET_CHUNKED4_SINGLE "dataset_chunked4_single"
#define NAME_DATASET_COMPACT         "dataset_compact"
#define NAME_DATASET_EXTERNAL        "dataset_ext"
#define NAME_DATASET_NAMED_DTYPE     "dataset_named_dtype"
#define NAME_DATASET_NAMED_DTYPE2    "dataset_named_dtype2"
#define NAME_DATASET_MULTI_OHDR      "dataset_multi_ohdr"
#define NAME_DATASET_MULTI_OHDR2     "dataset_multi_ohdr2"
#define NAME_DATASET_VL              "dataset_vl"
#define NAME_DATASET_VL2             "dataset_vl2"
#define NAME_DATASET_VL_VL           "dataset_vl_vl"
#define NAME_DATASET_VL_VL2          "dataset_vl_vl2"
#define NAME_DATASET_CMPD_VL         "dataset_cmpd_vl"
#define NAME_DATASET_SUB_SUB         "/g0/g00/g000/dataset_simple"
#define NAME_GROUP_UNCOPIED          "/uncopied"
#define NAME_GROUP_EMPTY             "/empty"
#define NAME_GROUP_TOP               "/g0"
#define NAME_GROUP_TOP2              "/g1"
#define NAME_GROUP_TOP3              "/g2"
#define NAME_GROUP_TOP4              "/g3"
#define NAME_GROUP_SUB               "/g0/g00"
#define NAME_GROUP_SUB_2             "/g0/g01"
#define NAME_GROUP_SUB_SUB           "/g0/g00/g000"
#define NAME_GROUP_SUB_SUB2          "g000"
#define NAME_GROUP_DATASET           "/g0/dataset_simple"
#define NAME_GROUP_LINK              "/g_links"
#define NAME_GROUP_LINK2             "/g_links2"
#define NAME_GROUP_LOOP              "g_loop"
#define NAME_GROUP_LOOP2             "g_loop2"
#define NAME_GROUP_LOOP3             "g_loop3"
#define NAME_GROUP_REF               "ref_grp"
#define NAME_LINK_DATASET            "/g_links/dataset_simple"
#define NAME_LINK_HARD               "/g_links/hard_link_to_dataset_simple"
#define NAME_LINK_SOFT               "/g_links/soft_link_to_dataset_simple"
#define NAME_LINK_SOFT2              "/g_links2/soft_link_to_dataset_simple"
#define NAME_LINK_EXTERN             "/g_links/external_link_to_dataset_simple"
#define NAME_LINK_EXTERN2            "/g_links2/external_link_to_dataset_simple"
#define NAME_LINK_SOFT_DANGLE        "/g_links/soft_link_to_nowhere"
#define NAME_LINK_SOFT_DANGLE2       "/g_links2/soft_link_to_nowhere"
#define NAME_LINK_EXTERN_DANGLE      "/g_links/external_link_to_nowhere"
#define NAME_LINK_EXTERN_DANGLE2     "/g_links2/external_link_to_nowhere"
#define NAME_OLD_FORMAT              "/dset1"

#define NAME_BUF_SIZE        1024
#define ATTR_NAME_LEN        80
#define DIM_SIZE_1           12
#define DIM_SIZE_2           6
#define MAX_DIM_SIZE_1       100
#define MAX_DIM_SIZE_2       80
#define CHUNK_SIZE_1         5 /* Not an even fraction of dimension sizes, so we test copying partial chunks */
#define CHUNK_SIZE_2         5
#define NUM_SUB_GROUPS       20
#define NUM_WIDE_LOOP_GROUPS 10
#define NUM_DATASETS         10
#define ATTR_CMPD_STRING     "ThisIsAString"

char src_obj_full_name[215]; /* the full path + name of the object to be copied */

unsigned num_attributes_g; /* Number of attributes created */

/* Table containing object id and object name */
/* (Used for detecting duplicate objects when comparing groups */
static struct {
    size_t       nalloc; /* number of slots allocated */
    size_t       nobjs;  /* number of objects */
    H5O_token_t *obj;    /* Tokens of objects seen */
} idtab_g;

/* Local function prototypes */
static int compare_data(hid_t parent1, hid_t parent2, hid_t pid, hid_t tid, size_t nelmts, const void *buf1,
                        const void *buf2, hid_t obj_owner);
static int compare_datasets(hid_t did, hid_t did2, hid_t pid, const void *wbuf);
static int compare_groups(hid_t gid, hid_t gid2, hid_t pid, int depth, unsigned copy_flags);
static int compare_idx_type(hid_t fapl, hid_t did, H5D_chunk_index_t new_type, H5D_chunk_index_t old_type);

static int test_copy_attribute_compound_vlstr(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl);
static int attach_attribute_compound_vlstr(hid_t loc_id);
static int compare_attribute_compound_vlstr(hid_t loc, hid_t loc2);

/*-------------------------------------------------------------------------
 * Function:    token_insert
 *
 * Purpose:     Add a token to the table.
 *
 * Return:      void
 *
 *-------------------------------------------------------------------------
 */
static void
token_insert(H5O_info2_t *oi)
{
    size_t n;

    /* Don't add it if the link count is 1 because such an object can only
     * be encountered once. */
    if (oi->rc < 2)
        return;

    /* Extend the table */
    if (idtab_g.nobjs >= idtab_g.nalloc) {
        idtab_g.nalloc = MAX(256, 2 * idtab_g.nalloc);
        idtab_g.obj    = (H5O_token_t *)realloc(idtab_g.obj, idtab_g.nalloc * sizeof(idtab_g.obj[0]));
    } /* end if */

    /* Insert the entry */
    n              = idtab_g.nobjs++;
    idtab_g.obj[n] = oi->token;
} /* end token_insert() */

/*-------------------------------------------------------------------------
 * Function:    token_lookup
 *
 * Purpose:     Check if a token has already been encountered
 *
 * Return:      Success:    true/false
 *              Failure:    (can't fail)
 *
 *-------------------------------------------------------------------------
 */
static H5_ATTR_PURE bool
token_lookup(hid_t loc_id, H5O_info2_t *oi)
{
    size_t n;
    int    token_cmp;

    if (oi->rc < 2)
        return false; /*only one link possible*/

    for (n = 0; n < idtab_g.nobjs; n++) {
        if (H5Otoken_cmp(loc_id, &idtab_g.obj[n], &oi->token, &token_cmp) < 0)
            return false;
        if (!token_cmp)
            return true;
    }

    return false;
} /* end token_lookup() */

/*-------------------------------------------------------------------------
 * Function:    token_reset
 *
 * Purpose:     Reset the token tracking data structures
 *
 * Return:      void
 *
 *-------------------------------------------------------------------------
 */
static void
token_reset(void)
{
    if (idtab_g.obj)
        free(idtab_g.obj);
    idtab_g.obj    = NULL;
    idtab_g.nalloc = idtab_g.nobjs = 0;
} /* end token_reset() */

/*-------------------------------------------------------------------------
 * Function:    attach_ref_attr
 *
 * Purpose:     Create an attribute with object references
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
attach_ref_attr(hid_t file_id, hid_t loc_id)
{
    char  dsetname1[] = "dataset1_pointed_by_ref_attr";
    char  dsetname2[] = "dataset2_pointed_by_ref_attr";
    hid_t did1 = (H5I_INVALID_HID), did2 = (H5I_INVALID_HID), aid = (H5I_INVALID_HID),
          sid = (H5I_INVALID_HID), sid_ref = (H5I_INVALID_HID);
    hsize_t    dims[2]     = {2, 9};
    hsize_t    dims_ref[1] = {2};
    hobj_ref_t ref[2];
    int        data1[2][9] = {{1, 1, 1, 1, 1, 1, 1, 1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 18}};
    int        data2[2][9] = {{2, 2, 2, 2, 2, 2, 2, 2, 2}, {2, 2, 2, 2, 2, 2, 2, 2, 18}};

    /* creates two simple datasets */
    if ((sid = H5Screate_simple(2, dims, NULL)) < 0)
        TEST_ERROR;
    if ((sid_ref = H5Screate_simple(1, dims_ref, NULL)) < 0)
        TEST_ERROR;
    if ((did1 = H5Dcreate2(file_id, dsetname1, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;
    if (H5Dwrite(did1, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data1) < 0)
        TEST_ERROR;
    if ((did2 = H5Dcreate2(file_id, dsetname2, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data2) < 0)
        TEST_ERROR;

    /* create an attribute with two object references */
    if (H5Rcreate(&ref[0], file_id, dsetname1, H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if (H5Rcreate(&ref[1], file_id, dsetname2, H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if ((aid = H5Acreate2(loc_id, "obj_ref_attr", H5T_STD_REF_OBJ, sid_ref, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Awrite(aid, H5T_STD_REF_OBJ, ref) < 0)
        TEST_ERROR;

    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    if (H5Sclose(sid_ref) < 0)
        TEST_ERROR;
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Sclose(sid_ref);
        H5Dclose(did1);
        H5Dclose(did2);
        H5Aclose(aid);
    }
    H5E_END_TRY

    return (-1);
}

/*-------------------------------------------------------------------------
 * Function:    attach_reg_ref_attr
 *
 * Purpose:     Create an attribute with object references
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
attach_reg_ref_attr(hid_t file_id, hid_t loc_id)
{
    const char      dsetnamev[] = "dataset_pointed_by_reg_ref_attr";
    hid_t           aid         = (H5I_INVALID_HID);
    hid_t           space_id    = (H5I_INVALID_HID); /* dataspace identifiers */
    hid_t           spacer_id   = (H5I_INVALID_HID); /* dataspace identifiers */
    hid_t           dsetv_id    = (H5I_INVALID_HID); /*dataset identifiers*/
    hsize_t         dims[2]     = {2, 9};
    hsize_t         dimsr[1]    = {2};
    int             rank        = 2;
    int             rankr       = 1;
    hdset_reg_ref_t ref[2];
    int             data[2][9]  = {{1, 1, 2, 3, 3, 4, 5, 5, 999}, {1, 2, 2, 3, 4, 4, 5, 6, 999}};
    hsize_t         start[2]    = {0, 3};
    hsize_t         count[2]    = {2, 3};
    hsize_t         coord[3][2] = {{0, 0}, {1, 6}, {0, 8}};
    size_t          num_points  = 3;

    /* create a 2D dataset */
    if ((space_id = H5Screate_simple(rank, dims, NULL)) < 0)
        TEST_ERROR;
    if ((spacer_id = H5Screate_simple(rankr, dimsr, NULL)) < 0)
        TEST_ERROR;
    if ((dsetv_id = H5Dcreate2(file_id, dsetnamev, H5T_NATIVE_INT, space_id, H5P_DEFAULT, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(dsetv_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data) < 0)
        TEST_ERROR;

    /* create reg_ref of block selection */
    if (H5Sselect_hyperslab(space_id, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
        TEST_ERROR;
    if (H5Rcreate(&ref[0], file_id, dsetnamev, H5R_DATASET_REGION, space_id) < 0)
        TEST_ERROR;

    /* create reg_ref of point selection */
    if (H5Sselect_none(space_id) < 0)
        TEST_ERROR;
    if (H5Sselect_elements(space_id, H5S_SELECT_SET, num_points, (const hsize_t *)coord) < 0)
        TEST_ERROR;
    if (H5Rcreate(&ref[1], file_id, dsetnamev, H5R_DATASET_REGION, space_id) < 0)
        TEST_ERROR;

    /* create reg_ref attribute */
    if ((aid = H5Acreate2(loc_id, "reg_ref_attr", H5T_STD_REF_DSETREG, spacer_id, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;
    if (H5Awrite(aid, H5T_STD_REF_DSETREG, ref) < 0)
        TEST_ERROR;

    /* attach the reg_ref attribute to the dataset itself */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if ((aid = H5Acreate2(dsetv_id, "reg_ref_attr", H5T_STD_REF_DSETREG, spacer_id, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Awrite(aid, H5T_STD_REF_DSETREG, ref) < 0)
        TEST_ERROR;

    if (H5Sclose(spacer_id) < 0)
        TEST_ERROR;
    if (H5Sclose(space_id) < 0)
        TEST_ERROR;
    if (H5Dclose(dsetv_id) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(spacer_id);
        H5Sclose(space_id);
        H5Dclose(dsetv_id);
        H5Aclose(aid);
    }
    H5E_END_TRY

    return (-1);
}

/*-------------------------------------------------------------------------
 * Function:    create_reg_ref_dataset
 *
 * Purpose:     Create a dataset with region references
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static herr_t
create_reg_ref_dataset(hid_t file_id, hid_t loc_id)
{
    const char      dsetnamev[]  = "dataset_pointed_by_ref_dset";
    const char      dsetnamer[]  = "dataset_with_reg_ref";
    const char      dsetnamer1[] = "compact_dataset_with_reg_ref";
    const char      dsetnamer2[] = "compressed_dataset_with_reg_ref";
    hid_t           space_id     = (H5I_INVALID_HID); /* dataspace identifiers */
    hid_t           spacer_id    = (H5I_INVALID_HID);
    hid_t           dsetv_id     = (H5I_INVALID_HID); /*dataset identifiers*/
    hid_t           dsetr_id     = (H5I_INVALID_HID);
    hsize_t         dims[2]      = {2, 9};
    hsize_t         dimsr[1]     = {2};
    int             rank         = 2;
    int             rankr        = 1;
    hsize_t         chunk_size   = 1;
    hdset_reg_ref_t ref[2];
    int             data[2][9] = {{1, 1, 2, 3, 3, 4, 5, 5, 6}, {1, 2, 2, 3, 4, 4, 5, 6, 6}};
    hsize_t         start[2];
    hsize_t         count[2];
    hsize_t         coord[3][2] = {{0, 0}, {1, 6}, {0, 8}};
    size_t          num_points  = 3;
    hid_t           pid         = (H5I_INVALID_HID);

    if ((space_id = H5Screate_simple(rank, dims, NULL)) < 0)
        TEST_ERROR;
    if ((spacer_id = H5Screate_simple(rankr, dimsr, NULL)) < 0)
        TEST_ERROR;
    if ((dsetv_id = H5Dcreate2(file_id, dsetnamev, H5T_NATIVE_INT, space_id, H5P_DEFAULT, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(dsetv_id, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data) < 0)
        TEST_ERROR;
    if ((dsetr_id = H5Dcreate2(loc_id, dsetnamer, H5T_STD_REF_DSETREG, spacer_id, H5P_DEFAULT, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;

    start[0] = 0;
    start[1] = 3;
    count[0] = 2;
    count[1] = 3;
    if (H5Sselect_hyperslab(space_id, H5S_SELECT_SET, start, NULL, count, NULL) < 0)
        TEST_ERROR;
    if (H5Rcreate(&ref[0], file_id, dsetnamev, H5R_DATASET_REGION, space_id) < 0)
        TEST_ERROR;
    if (H5Sselect_none(space_id) < 0)
        TEST_ERROR;
    if (H5Sselect_elements(space_id, H5S_SELECT_SET, num_points, (const hsize_t *)coord) < 0)
        TEST_ERROR;
    if (H5Rcreate(&ref[1], file_id, dsetnamev, H5R_DATASET_REGION, space_id) < 0)
        TEST_ERROR;
    if (H5Dwrite(dsetr_id, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, ref) < 0)
        TEST_ERROR;
    if (H5Dclose(dsetr_id) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    if ((dsetr_id = H5Dcreate2(loc_id, dsetnamer1, H5T_STD_REF_DSETREG, spacer_id, H5P_DEFAULT, pid,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Pclose(pid) < 0)
        TEST_ERROR;
    if (H5Dwrite(dsetr_id, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, ref) < 0)
        TEST_ERROR;
    if (H5Dclose(dsetr_id) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, &chunk_size) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    if ((dsetr_id = H5Dcreate2(loc_id, dsetnamer2, H5T_STD_REF_DSETREG, spacer_id, H5P_DEFAULT, pid,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Pclose(pid) < 0)
        TEST_ERROR;
    if (H5Dwrite(dsetr_id, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, ref) < 0)
        TEST_ERROR;
    if (H5Dclose(dsetr_id) < 0)
        TEST_ERROR;

    if (H5Sclose(space_id) < 0)
        TEST_ERROR;
    if (H5Sclose(spacer_id) < 0)
        TEST_ERROR;
    if (H5Dclose(dsetv_id) < 0)
        TEST_ERROR;

    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(space_id);
        H5Sclose(spacer_id);
        H5Dclose(dsetr_id);
        H5Dclose(dsetv_id);
        H5Pclose(pid);
    }
    H5E_END_TRY

    return (-1);
}

/*-------------------------------------------------------------------------
 * Function:    attach_attribute_vl
 *
 * Purpose:     Attach an vlen attribute to the object to be copied
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attach_attribute_vl(hid_t loc_id)
{
    hid_t        aid = H5I_INVALID_HID, sid = H5I_INVALID_HID, tid = H5I_INVALID_HID;
    hvl_t        buf[4];
    hsize_t      dim1 = 4;
    unsigned int i, j;
    int          ret_value = -1;

    if ((sid = H5Screate_simple(1, &dim1, NULL)) < 0)
        goto done;

    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        goto done;

    for (i = 0; i < 4; i++) {
        buf[i].len = i * 3 + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(j + 1);
    } /* end for */

    if ((aid = H5Acreate2(loc_id, "vlen attribute", tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        goto done;

    if (H5Awrite(aid, tid, buf) < 0)
        goto done;

    ret_value = 0;

done:
    if (tid > 0 && sid > 0) {
        hid_t dxpl_id = H5Pcreate(H5P_DATASET_XFER);
        H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL);
        H5Treclaim(tid, sid, dxpl_id, buf);
        H5Pclose(dxpl_id);
    }
    if (sid > 0)
        H5Sclose(sid);
    if (tid > 0)
        H5Tclose(tid);
    if (aid > 0)
        H5Aclose(aid);
    return ret_value;
} /* end of attach_attribute_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_attach_attributes
 *
 * Purpose:     Attach NUM_ATTRIBUTES attributes to the object to be copied
 *
 * Return:    Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attach_attributes(hid_t loc_id, hid_t type_id)
{
    hid_t    aid = H5I_INVALID_HID, sid = H5I_INVALID_HID;
    char     attr_name[ATTR_NAME_LEN];
    int      attr_data[2];
    hsize_t  dim1 = 2;
    hid_t    acpl = H5I_INVALID_HID;
    unsigned u;
    int      ret_value = -1;

    if ((sid = H5Screate_simple(1, &dim1, NULL)) < 0)
        goto done;

    /* Create attribute creation plist */
    if ((acpl = H5Pcreate(H5P_ATTRIBUTE_CREATE)) < 0)
        goto done;

    for (u = 0; u < num_attributes_g; u++) {
        snprintf(attr_name, sizeof(attr_name), "%u attr", u);

        /* Set attribute data */
        attr_data[0] = (int)(100 * u);
        attr_data[1] = (int)(200 * u);

        /* Set attribute character set (alternate) */
        if (u % 2) {
            if (H5Pset_char_encoding(acpl, H5T_CSET_ASCII) < 0)
                goto done;
        } /* end if */
        else if (H5Pset_char_encoding(acpl, H5T_CSET_UTF8) < 0)
            goto done;

        if ((aid = H5Acreate2(loc_id, attr_name, type_id, sid, acpl, H5P_DEFAULT)) < 0)
            goto done;

        if (H5Awrite(aid, H5T_NATIVE_INT, attr_data) < 0)
            goto done;

        if (aid > 0)
            H5Aclose(aid);

        aid = -1;
    }

    ret_value = 0;

done:
    if (sid > 0)
        H5Sclose(sid);
    if (aid > 0)
        H5Aclose(aid);
    if (acpl > 0)
        H5Pclose(acpl);

    return ret_value;
}

/*-------------------------------------------------------------------------
 * Function:    test_copy_attach_paired_attributes
 *
 * Purpose:     Attach NUM_ATTRIBUTES attributes to a pair of objects to be copied
 *
 * Return:    Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attach_paired_attributes(hid_t loc_id, hid_t loc_id2, hid_t type_id)
{
    hid_t    aid = H5I_INVALID_HID, sid = H5I_INVALID_HID;
    char     attr_name[ATTR_NAME_LEN];
    int      attr_data[2];
    hid_t    acpl = H5I_INVALID_HID;
    unsigned u;
    hsize_t  dim1 = 2;

    if ((sid = H5Screate_simple(1, &dim1, NULL)) < 0)
        goto done;

    /* Create attribute creation plist */
    if ((acpl = H5Pcreate(H5P_ATTRIBUTE_CREATE)) < 0)
        goto done;

    for (u = 0; u < num_attributes_g; u++) {
        snprintf(attr_name, sizeof(attr_name), "%u attr", u);

        /* Set attribute data */
        attr_data[0] = (int)(100 * u);
        attr_data[1] = (int)(200 * u);

        /* Set attribute character set (alternate) */
        if (u % 2) {
            if (H5Pset_char_encoding(acpl, H5T_CSET_ASCII) < 0)
                goto done;
        } /* end if */
        else if (H5Pset_char_encoding(acpl, H5T_CSET_UTF8) < 0)
            goto done;

        /* Add attribute to first object */
        if ((aid = H5Acreate2(loc_id, attr_name, type_id, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            goto done;
        if (H5Awrite(aid, H5T_NATIVE_INT, attr_data) < 0)
            goto done;
        if (H5Aclose(aid) < 0)
            goto done;

        /* Add attribute to second object */
        if ((aid = H5Acreate2(loc_id2, attr_name, type_id, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            goto done;
        if (H5Awrite(aid, H5T_NATIVE_INT, attr_data) < 0)
            goto done;
        if (H5Aclose(aid) < 0)
            goto done;
    }

    if (H5Sclose(sid) < 0)
        goto done;
    if (H5Pclose(acpl) < 0)
        goto done;

    return 0;

done:
    if (sid > 0)
        H5Sclose(sid);
    if (aid > 0)
        H5Aclose(aid);
    if (acpl > 0)
        H5Pclose(acpl);

    return -1;
} /* end test_copy_attach_paired_attributes() */

/*-------------------------------------------------------------------------
 * Function:    compare_attribute
 *
 * Purpose:     Compare two attributes to check that they are equal
 *
 * Return:      true if attributes are equal/false if they are different
 *
 *-------------------------------------------------------------------------
 */
static int
compare_attribute(hid_t aid, hid_t aid2, hid_t pid, const void *wbuf, hid_t obj_owner)
{
    hid_t      sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID; /* Dataspace IDs */
    hid_t      tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID; /* Datatype IDs */
    size_t     elmt_size;                                     /* Size of datatype */
    htri_t     is_committed;                                  /* If the datatype is committed */
    htri_t     is_committed2;                                 /* If the datatype is committed */
    H5A_info_t ainfo;                                         /* Attribute info */
    H5A_info_t ainfo2;                                        /* Attribute info */
    hssize_t   nelmts;                                        /* # of elements in dataspace */
    void      *rbuf  = NULL;                                  /* Buffer for reading raw data */
    void      *rbuf2 = NULL;                                  /* Buffer for reading raw data */

    /* Check the character sets are equal */
    if (H5Aget_info(aid, &ainfo) < 0)
        TEST_ERROR;
    if (H5Aget_info(aid2, &ainfo2) < 0)
        TEST_ERROR;
    if (ainfo.cset != ainfo2.cset)
        TEST_ERROR;

    /* Check the creation orders are equal (if appropriate) */
    if (ainfo.corder_valid != ainfo2.corder_valid)
        TEST_ERROR;
    if (ainfo.corder_valid)
        if (ainfo.corder != ainfo2.corder)
            TEST_ERROR;

    /* Check the datatypes are equal */

    /* Open the datatype for the source attribute */
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;

    /* Open the datatype for the destination attribute */
    if ((tid2 = H5Aget_type(aid2)) < 0)
        TEST_ERROR;

    /* Check that both datatypes are committed/not committed */
    if ((is_committed = H5Tcommitted(tid)) < 0)
        TEST_ERROR;
    if ((is_committed2 = H5Tcommitted(tid2)) < 0)
        TEST_ERROR;
    if (is_committed != is_committed2)
        TEST_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* Determine the size of datatype (for later) */
    if ((elmt_size = H5Tget_size(tid)) == 0)
        TEST_ERROR;

    /* Check the dataspaces are equal */

    /* Open the dataspace for the source attribute */
    if ((sid = H5Aget_space(aid)) < 0)
        TEST_ERROR;

    /* Open the dataspace for the destination attribute */
    if ((sid2 = H5Aget_space(aid2)) < 0)
        TEST_ERROR;

    /* Compare the dataspaces */
    if (H5Sextent_equal(sid, sid2) != true)
        TEST_ERROR;

    /* Determine the number of elements in dataspace (for later) */
    if ((nelmts = H5Sget_simple_extent_npoints(sid2)) < 0)
        TEST_ERROR;

    /* Check the raw data is equal */

    /* Allocate & initialize space for the raw data buffers */
    if ((rbuf = calloc(elmt_size, (size_t)nelmts)) == NULL)
        TEST_ERROR;
    if ((rbuf2 = calloc(elmt_size, (size_t)nelmts)) == NULL)
        TEST_ERROR;

    /* Read data from the source attribute */
    if (H5Aread(aid, tid, rbuf) < 0)
        TEST_ERROR;

    /* Read data from the destination attribute */
    if (H5Aread(aid2, tid2, rbuf2) < 0)
        TEST_ERROR;

    /* Check raw data read in against data written out */
    if (wbuf) {
        if (!compare_data(aid, (hid_t)0, pid, tid, (size_t)nelmts, wbuf, rbuf, obj_owner))
            TEST_ERROR;
        if (!compare_data(aid2, (hid_t)0, pid, tid2, (size_t)nelmts, wbuf, rbuf2, obj_owner))
            TEST_ERROR;
    } /* end if */
    /* Don't have written data, just compare data between the two attributes */
    else if (!compare_data(aid, aid2, pid, tid, (size_t)nelmts, rbuf, rbuf2, obj_owner))
        TEST_ERROR;

    /* Reclaim vlen data, if necessary */
    if (H5Tdetect_class(tid, H5T_VLEN) == true)
        if (H5Treclaim(tid, sid, H5P_DEFAULT, rbuf) < 0)
            TEST_ERROR;
    if (H5Tdetect_class(tid2, H5T_VLEN) == true)
        if (H5Treclaim(tid2, sid2, H5P_DEFAULT, rbuf2) < 0)
            TEST_ERROR;

    /* Release raw data buffers */
    free(rbuf);
    rbuf = NULL;
    free(rbuf2);
    rbuf2 = NULL;

    /* close the source dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the destination dataspace */
    if (H5Sclose(sid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    return true;

error:
    if (rbuf)
        free(rbuf);
    if (rbuf2)
        free(rbuf2);
    H5E_BEGIN_TRY
    {
        H5Sclose(sid2);
        H5Sclose(sid);
        H5Tclose(tid2);
        H5Tclose(tid);
    }
    H5E_END_TRY
    return false;
} /* end compare_attribute() */

/*-------------------------------------------------------------------------
 * Function:    compare_std_attributes
 *
 * Purpose:     Compare "standard" attributes on two objects to check that they are equal
 *
 * Return:    true if objects have same attributes/false if they are different
 *
 * Note:    This isn't very general, the attributes are assumed to be
 *              those written in test_copy_attach_attributes().
 *
 *-------------------------------------------------------------------------
 */
static int
compare_std_attributes(hid_t oid, hid_t oid2, hid_t pid)
{
    hid_t       aid = H5I_INVALID_HID, aid2 = H5I_INVALID_HID; /* Attribute IDs */
    H5O_info2_t oinfo1, oinfo2;                                /* Object info */
    unsigned    cpy_flags;                                     /* Object copy flags */

    /* Retrieve the object copy flags from the property list, if it's non-DEFAULT */
    if (pid != H5P_DEFAULT) {
        if (H5Pget_copy_object(pid, &cpy_flags) < 0)
            TEST_ERROR;
    } /* end if */
    else
        cpy_flags = 0;

    /* Check the number of attributes on source dataset */
    if (H5Oget_info3(oid, &oinfo1, H5O_INFO_NUM_ATTRS) < 0)
        TEST_ERROR;

    /* Check the number of attributes on destination dataset */
    if (H5Oget_info3(oid2, &oinfo2, H5O_INFO_NUM_ATTRS) < 0)
        TEST_ERROR;

    if (cpy_flags & H5O_COPY_WITHOUT_ATTR_FLAG) {
        /* Check that the destination has no attributes */
        if (oinfo2.num_attrs != 0)
            TEST_ERROR;
    } /* end if */
    else {
        char     attr_name[ATTR_NAME_LEN]; /* Attribute name */
        unsigned i;                        /* Local index variable */

        /* Compare the number of attributes */
        if (oinfo1.num_attrs != oinfo2.num_attrs)
            TEST_ERROR;

        /* Check the attributes are equal */
        for (i = 0; i < (unsigned)oinfo1.num_attrs; i++) {
            if ((aid = H5Aopen_by_idx(oid, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)i, H5P_DEFAULT,
                                      H5P_DEFAULT)) < 0)
                TEST_ERROR;
            if (H5Aget_name(aid, (size_t)ATTR_NAME_LEN, attr_name) < 0)
                TEST_ERROR;

            if ((aid2 = H5Aopen(oid2, attr_name, H5P_DEFAULT)) < 0)
                TEST_ERROR;

            /* Check the attributes are equal */
            if (!compare_attribute(aid, aid2, pid, NULL, oid))
                TEST_ERROR;

            /* Close the attributes */
            if (H5Aclose(aid) < 0)
                TEST_ERROR;
            if (H5Aclose(aid2) < 0)
                TEST_ERROR;
        } /* end for */
    }     /* end if */

    /* Objects should be the same. :-) */
    return true;

error:
    H5E_BEGIN_TRY
    {
        H5Aclose(aid2);
        H5Aclose(aid);
    }
    H5E_END_TRY
    return false;
} /* end compare_std_attributes() */

/*-------------------------------------------------------------------------
 * Function:    compare_data
 *
 * Purpose:     Compare two buffers of data to check that they are equal
 *
 * Return:    true if buffer are equal/false if they are different
 *
 *-------------------------------------------------------------------------
 */
static int
compare_data(hid_t parent1, hid_t parent2, hid_t pid, hid_t tid, size_t nelmts, const void *buf1,
             const void *buf2, hid_t obj_owner)
{
    size_t elmt_size; /* Size of an element */

    /* Check size of each element */
    if ((elmt_size = H5Tget_size(tid)) == 0)
        TEST_ERROR;

    /* If the type is a compound containing a vlen, loop over all elements for
     * each compound member.  Compounds containing reference  are not supported
     * yet. */
    if ((H5Tget_class(tid) == H5T_COMPOUND) && (H5Tdetect_class(tid, H5T_VLEN) == true)) {
        hid_t          memb_id;   /* Member id */
        const uint8_t *memb1;     /* Pointer to current member */
        const uint8_t *memb2;     /* Pointer to current member */
        int            nmembs;    /* Number of members */
        size_t         memb_off;  /* Member offset */
        size_t         memb_size; /* Member size */
        unsigned       memb_idx;  /* Member index */
        size_t         elmt;      /* Current element */

        /* Get number of members in compound */
        if ((nmembs = H5Tget_nmembers(tid)) < 0)
            TEST_ERROR;

        /* Loop over members */
        for (memb_idx = 0; memb_idx < (unsigned)nmembs; memb_idx++) {
            /* Get member offset.  Note that we cannot check for an error here.
             */
            memb_off = H5Tget_member_offset(tid, memb_idx);

            /* Get member id */
            if ((memb_id = H5Tget_member_type(tid, memb_idx)) < 0)
                TEST_ERROR;

            /* Get member size */
            if ((memb_size = H5Tget_size(memb_id)) == 0)
                TEST_ERROR;

            /* Set up pointers to member in the first element */
            memb1 = (const uint8_t *)buf1 + memb_off;
            memb2 = (const uint8_t *)buf2 + memb_off;

            /* Check if this member contains (or is) a vlen */
            if (H5Tget_class(memb_id) == H5T_VLEN) {
                hid_t base_id; /* vlen base type id */

                /* Get base type of vlen datatype */
                if ((base_id = H5Tget_super(memb_id)) < 0)
                    TEST_ERROR;

                /* Iterate over all elements, recursively calling this function
                 * for each */
                for (elmt = 0; elmt < nelmts; elmt++) {
                    /* Check vlen lengths */
                    if (((const hvl_t *)((const void *)memb1))->len !=
                        ((const hvl_t *)((const void *)memb2))->len)
                        TEST_ERROR;

                    /* Check vlen data */
                    if (!compare_data(parent1, parent2, pid, base_id,
                                      ((const hvl_t *)((const void *)memb1))->len,
                                      ((const hvl_t *)((const void *)memb1))->p,
                                      ((const hvl_t *)((const void *)memb2))->p, obj_owner))
                        TEST_ERROR;

                    /* Update member pointers */
                    memb1 += elmt_size;
                    memb2 += elmt_size;
                } /* end for */
            }
            else {
                /* vlens cannot currently be nested below the top layer of a
                 * compound */
                assert(H5Tdetect_class(memb_id, H5T_VLEN) == false);

                /* Iterate over all elements, calling memcmp() for each */
                for (elmt = 0; elmt < nelmts; elmt++) {
                    if (memcmp(memb1, memb2, memb_size) != 0)
                        TEST_ERROR;

                    /* Update member pointers */
                    memb1 += elmt_size;
                    memb2 += elmt_size;
                } /* end for */
            }     /* end else */
        }         /* end for */
    }
    else if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        const hvl_t *vl_buf1, *vl_buf2; /* Aliases for buffers to compare */
        hid_t        base_tid;          /* Base type of vlen datatype */
        size_t       u;                 /* Local index variable */

        /* Check for "simple" vlen datatype */
        if (H5Tget_class(tid) != H5T_VLEN)
            TEST_ERROR;

        /* Get base type of vlen datatype */
        if ((base_tid = H5Tget_super(tid)) < 0)
            TEST_ERROR;

        /* Loop over elements in buffers */
        vl_buf1 = (const hvl_t *)buf1;
        vl_buf2 = (const hvl_t *)buf2;
        for (u = 0; u < nelmts; u++, vl_buf1++, vl_buf2++) {
            /* Check vlen lengths */
            if (vl_buf1->len != vl_buf2->len)
                TEST_ERROR;

            /* Check vlen data */
            if (!compare_data(parent1, parent2, pid, base_tid, vl_buf1->len, vl_buf1->p, vl_buf2->p,
                              obj_owner))
                TEST_ERROR;
        } /* end for */

        if (H5Tclose(base_tid) < 0)
            TEST_ERROR;
    } /* end if */
    else if (H5Tdetect_class(tid, H5T_REFERENCE) == true) {
        size_t u; /* Local index variable */

        /* Check for "simple" reference datatype */
        if (H5Tget_class(tid) != H5T_REFERENCE)
            TEST_ERROR;

        /* Check for object or region reference */
        if (H5Tequal(tid, H5T_STD_REF_OBJ) > 0) {
            const hobj_ref_t *ref_buf1, *ref_buf2; /* Aliases for buffers to compare */

            /* Loop over elements in buffers */
            ref_buf1 = (const hobj_ref_t *)buf1;
            ref_buf2 = (const hobj_ref_t *)buf2;
            for (u = 0; u < nelmts; u++, ref_buf1++, ref_buf2++) {
                hid_t      obj1_id, obj2_id;     /* IDs for objects referenced */
                H5O_type_t obj1_type, obj2_type; /* Types of objects referenced */

                /* Check for types of objects handled */
                if (H5Rget_obj_type2(parent1, H5R_OBJECT, ref_buf1, &obj1_type) < 0)
                    TEST_ERROR;
                if (H5Rget_obj_type2(parent2, H5R_OBJECT, ref_buf2, &obj2_type) < 0)
                    TEST_ERROR;
                if (obj1_type != obj2_type)
                    TEST_ERROR;

                /* Open referenced objects */
                if ((obj1_id = H5Rdereference2(parent1, H5P_DEFAULT, H5R_OBJECT, ref_buf1)) < 0)
                    TEST_ERROR;
                if ((obj2_id = H5Rdereference2(parent2, H5P_DEFAULT, H5R_OBJECT, ref_buf2)) < 0)
                    TEST_ERROR;

                /* break the infinite loop when the ref_object points to itself */
                if (obj_owner > 0) {
                    H5O_info2_t oinfo1, oinfo2;
                    int         token_cmp;

                    if (H5Oget_info3(obj_owner, &oinfo1, H5O_INFO_BASIC) < 0)
                        TEST_ERROR;
                    if (H5Oget_info3(obj1_id, &oinfo2, H5O_INFO_BASIC) < 0)
                        TEST_ERROR;
                    if (H5Otoken_cmp(obj1_id, &oinfo1.token, &oinfo2.token, &token_cmp) < 0)
                        TEST_ERROR;
                    if (!token_cmp) {
                        if (H5Oclose(obj1_id) < 0)
                            TEST_ERROR;
                        if (H5Oclose(obj2_id) < 0)
                            TEST_ERROR;
                        return true;
                    }
                }

                /* Check for types of objects handled */
                switch (obj1_type) {
                    case H5O_TYPE_DATASET:
                        if (compare_datasets(obj1_id, obj2_id, pid, NULL) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_GROUP:
                        if (compare_groups(obj1_id, obj2_id, pid, -1, 0) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_NAMED_DATATYPE:
                        if (H5Tequal(obj1_id, obj2_id) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_MAP:
                        /* Maps not supported in native VOL connector */

                    case H5O_TYPE_UNKNOWN:
                    case H5O_TYPE_NTYPES:
                    default:
                        TEST_ERROR;
                } /* end switch */

                /* Close objects */
                if (H5Oclose(obj1_id) < 0)
                    TEST_ERROR;
                if (H5Oclose(obj2_id) < 0)
                    TEST_ERROR;
            } /* end for */
        }     /* end if */
        else if (H5Tequal(tid, H5T_STD_REF_DSETREG) > 0) {
            const hdset_reg_ref_t *ref_buf1, *ref_buf2; /* Aliases for buffers to compare */

            /* Loop over elements in buffers */
            ref_buf1 = (const hdset_reg_ref_t *)buf1;
            ref_buf2 = (const hdset_reg_ref_t *)buf2;
            for (u = 0; u < nelmts; u++, ref_buf1++, ref_buf2++) {
                hid_t      obj1_id, obj2_id;     /* IDs for objects referenced */
                hid_t      obj1_sid, obj2_sid;   /* Dataspace IDs for objects referenced */
                H5O_type_t obj1_type, obj2_type; /* Types of objects referenced */

                /* Check for types of objects handled */
                if (H5Rget_obj_type2(parent1, H5R_DATASET_REGION, ref_buf1, &obj1_type) < 0)
                    TEST_ERROR;
                if (H5Rget_obj_type2(parent2, H5R_DATASET_REGION, ref_buf2, &obj2_type) < 0)
                    TEST_ERROR;
                if (obj1_type != obj2_type)
                    TEST_ERROR;

                /* Open referenced objects */
                if ((obj1_id = H5Rdereference2(parent1, H5P_DEFAULT, H5R_DATASET_REGION, ref_buf1)) < 0)
                    TEST_ERROR;
                if ((obj2_id = H5Rdereference2(parent2, H5P_DEFAULT, H5R_DATASET_REGION, ref_buf2)) < 0)
                    TEST_ERROR;

                /* break the infinite loop when the ref_object points to itself */
                if (obj_owner > 0) {
                    H5O_info2_t oinfo1, oinfo2;
                    int         token_cmp;

                    if (H5Oget_info3(obj_owner, &oinfo1, H5O_INFO_BASIC) < 0)
                        TEST_ERROR;
                    if (H5Oget_info3(obj1_id, &oinfo2, H5O_INFO_BASIC) < 0)
                        TEST_ERROR;
                    if (H5Otoken_cmp(obj1_id, &oinfo1.token, &oinfo2.token, &token_cmp) < 0)
                        TEST_ERROR;
                    if (!token_cmp) {
                        if (H5Oclose(obj1_id) < 0)
                            TEST_ERROR;
                        if (H5Oclose(obj2_id) < 0)
                            TEST_ERROR;
                        return true;
                    }
                }

                /* Check for types of objects handled */
                switch (obj1_type) {
                    case H5O_TYPE_DATASET:
                        if (compare_datasets(obj1_id, obj2_id, pid, NULL) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_GROUP:
                        if (compare_groups(obj1_id, obj2_id, pid, -1, 0) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_NAMED_DATATYPE:
                        if (H5Tequal(obj1_id, obj2_id) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_MAP:
                        /* Maps not supported in native VOL connector */

                    case H5O_TYPE_UNKNOWN:
                    case H5O_TYPE_NTYPES:
                    default:
                        TEST_ERROR;
                } /* end switch */

                /* Close objects */
                if (H5Oclose(obj1_id) < 0)
                    TEST_ERROR;
                if (H5Oclose(obj2_id) < 0)
                    TEST_ERROR;

                /* Get regions for referenced datasets */
                if ((obj1_sid = H5Rget_region(parent1, H5R_DATASET_REGION, ref_buf1)) < 0)
                    TEST_ERROR;
                if ((obj2_sid = H5Rget_region(parent2, H5R_DATASET_REGION, ref_buf2)) < 0)
                    TEST_ERROR;

                /* Check if dataspaces are the same shape */
                if (H5Sselect_shape_same(obj1_sid, obj2_sid) < 0)
                    TEST_ERROR;

                /* Close dataspaces */
                if (H5Sclose(obj1_sid) < 0)
                    TEST_ERROR;
                if (H5Sclose(obj2_sid) < 0)
                    TEST_ERROR;
            } /* end for */
        }     /* end if */
        else
            TEST_ERROR;
    } /* end else */
    else if (memcmp(buf1, buf2, (elmt_size * nelmts)) != 0)
        TEST_ERROR;

    /* Data should be the same. :-) */
    return true;

error:
    return false;
} /* end compare_data() */

/*-------------------------------------------------------------------------
 * Function:    compare_datasets
 *
 * Purpose:     Compare two datasets to check that they are equal
 *
 * Return:    true if datasets are equal/false if they are different
 *
 *-------------------------------------------------------------------------
 */
static int
compare_datasets(hid_t did, hid_t did2, hid_t pid, const void *wbuf)
{
    hid_t    sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID;   /* Dataspace IDs */
    hid_t    tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;   /* Datatype IDs */
    hid_t    dcpl = H5I_INVALID_HID, dcpl2 = H5I_INVALID_HID; /* Dataset creation property list IDs */
    size_t   elmt_size;                                       /* Size of datatype */
    htri_t   is_committed;                                    /* If the datatype is committed */
    htri_t   is_committed2;                                   /* If the datatype is committed */
    int      nfilters;                                        /* Number of filters applied to dataset */
    hssize_t nelmts;                                          /* # of elements in dataspace */
    void    *rbuf  = NULL;                                    /* Buffer for reading raw data */
    void    *rbuf2 = NULL;                                    /* Buffer for reading raw data */
    H5D_space_status_t space_status;                          /* Dataset's raw dataspace status */
    H5D_space_status_t space_status2;                         /* Dataset's raw dataspace status */

    /* Check the datatypes are equal */

    /* Open the datatype for the source dataset */
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* Open the datatype for the destination dataset */
    if ((tid2 = H5Dget_type(did2)) < 0)
        TEST_ERROR;

    /* Check that both datatypes are committed/not committed */
    if ((is_committed = H5Tcommitted(tid)) < 0)
        TEST_ERROR;
    if ((is_committed2 = H5Tcommitted(tid2)) < 0)
        TEST_ERROR;
    if (is_committed != is_committed2)
        TEST_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* Determine the size of datatype (for later) */
    if ((elmt_size = H5Tget_size(tid)) == 0)
        TEST_ERROR;

    /* Check the dataspaces are equal */

    /* Open the dataspace for the source dataset */
    if ((sid = H5Dget_space(did)) < 0)
        TEST_ERROR;

    /* Open the dataspace for the destination dataset */
    if ((sid2 = H5Dget_space(did2)) < 0)
        TEST_ERROR;

    /* Compare the dataspaces */
    if (H5Sextent_equal(sid, sid2) != true)
        TEST_ERROR;

    /* Determine the number of elements in dataspace (for later) */
    if ((nelmts = H5Sget_simple_extent_npoints(sid)) < 0)
        TEST_ERROR;

    /* Check the dataset creation property lists are equal */

    /* Open the dataset creation property list for the source dataset */
    if ((dcpl = H5Dget_create_plist(did)) < 0)
        TEST_ERROR;

    /* Open the dataset creation property list for the destination dataset */
    if ((dcpl2 = H5Dget_create_plist(did2)) < 0)
        TEST_ERROR;

    /* Compare the rest of the dataset creation property lists */
    if (H5Pequal(dcpl, dcpl2) != true)
        TEST_ERROR;

    /* Get the number of filters on dataset (for later) */
    if ((nfilters = H5Pget_nfilters(dcpl)) < 0)
        TEST_ERROR;

    /* close the source dataset creation property list */
    if (H5Pclose(dcpl) < 0)
        TEST_ERROR;

    /* close the destination dataset creation property list */
    if (H5Pclose(dcpl2) < 0)
        TEST_ERROR;

    /* Check the allocated storage is the same */

    /* Check that the space allocation status is the same */
    if (H5Dget_space_status(did, &space_status) < 0)
        TEST_ERROR;
    if (H5Dget_space_status(did2, &space_status2) < 0)
        TEST_ERROR;
    if (space_status != space_status2)
        TEST_ERROR;

    /* Check that the space used is the same */
    /* (Don't check if the dataset is filtered (i.e. compressed, etc.) and
     *  the datatype is VLEN, since the tokens for the vlen
     *  data in each dataset will (probably) be different and the storage
     *  size will thus vary)
     */
    if (!(nfilters > 0 && (H5Tdetect_class(tid, H5T_VLEN) ||
                           (H5Tdetect_class(tid, H5T_REFERENCE) && H5Tequal(tid, H5T_STD_REF_DSETREG))))) {
        hsize_t storage_size  = H5Dget_storage_size(did);  /* Dataset's raw data storage size */
        hsize_t storage_size2 = H5Dget_storage_size(did2); /* 2nd Dataset's raw data storage size */

        if (storage_size != storage_size2)
            TEST_ERROR;
    } /* end if */

    /* Check the raw data is equal */

    /* Allocate & initialize space for the raw data buffers */
    if ((rbuf = calloc(elmt_size, (size_t)nelmts)) == NULL)
        TEST_ERROR;
    if ((rbuf2 = calloc(elmt_size, (size_t)nelmts)) == NULL)
        TEST_ERROR;

    /* Read data from datasets */
    if (H5Dread(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf) < 0)
        TEST_ERROR;
    if (H5Dread(did2, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf2) < 0)
        TEST_ERROR;

    /* Check raw data read in against data written out */
    if (wbuf) {
        if (!compare_data(did, (hid_t)0, pid, tid, (size_t)nelmts, wbuf, rbuf, did))
            TEST_ERROR;
        if (!compare_data(did2, (hid_t)0, pid, tid2, (size_t)nelmts, wbuf, rbuf2, did2))
            TEST_ERROR;
    } /* end if */
    /* Don't have written data, just compare data between the two datasets */
    else if (!compare_data(did, did2, pid, tid, (size_t)nelmts, rbuf, rbuf2, did))
        TEST_ERROR;

    /* Reclaim vlen data, if necessary */
    if (H5Tdetect_class(tid, H5T_VLEN) == true)
        if (H5Treclaim(tid, sid, H5P_DEFAULT, rbuf) < 0)
            TEST_ERROR;
    if (H5Tdetect_class(tid2, H5T_VLEN) == true)
        if (H5Treclaim(tid2, sid2, H5P_DEFAULT, rbuf2) < 0)
            TEST_ERROR;

    /* Release raw data buffers */
    free(rbuf);
    rbuf = NULL;
    free(rbuf2);
    rbuf2 = NULL;

    /* close the source dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the destination dataspace */
    if (H5Sclose(sid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* Check if the attributes are equal */
    if (compare_std_attributes(did, did2, pid) != true)
        TEST_ERROR;

    /* Datasets should be the same. :-) */
    return true;

error:
    H5E_BEGIN_TRY
    {
        if (rbuf)
            free(rbuf);
        if (rbuf2)
            free(rbuf2);
        H5Pclose(dcpl2);
        H5Pclose(dcpl);
        H5Sclose(sid2);
        H5Sclose(sid);
        H5Tclose(tid2);
        H5Tclose(tid);
    }
    H5E_END_TRY
    return false;
} /* end compare_datasets() */

/*-------------------------------------------------------------------------
 * Function:    compare_groups
 *
 * Purpose:     Compare two groups to check that they are "equal"
 *
 * Return:    true if group are equal/false if they are different
 *
 *-------------------------------------------------------------------------
 */
static int
compare_groups(hid_t gid, hid_t gid2, hid_t pid, int depth, unsigned copy_flags)
{
    H5G_info_t ginfo;     /* Group info struct */
    H5G_info_t ginfo2;    /* Group info struct */
    hsize_t    idx;       /* Index over the objects in group */
    unsigned   cpy_flags; /* Object copy flags */

    /* Retrieve the object copy flags from the property list, if it's non-DEFAULT */
    if (pid != H5P_DEFAULT) {
        if (H5Pget_copy_object(pid, &cpy_flags) < 0)
            TEST_ERROR;
    } /* end if */
    else
        cpy_flags = 0;

    /* Check if both groups have the same # of objects */
    if (H5Gget_info(gid, &ginfo) < 0)
        TEST_ERROR;
    if (H5Gget_info(gid2, &ginfo2) < 0)
        TEST_ERROR;
    if ((cpy_flags & H5O_COPY_SHALLOW_HIERARCHY_FLAG) && depth == 0) {
        if (ginfo2.nlinks != 0)
            TEST_ERROR;
    } /* end if */
    else {
        if (ginfo.nlinks != ginfo2.nlinks)
            TEST_ERROR;
    } /* end if */

    /* Check contents of groups */
    if (ginfo2.nlinks > 0) {
        char        objname[NAME_BUF_SIZE];  /* Name of object in group */
        char        objname2[NAME_BUF_SIZE]; /* Name of object in group */
        H5L_info2_t linfo;                   /* Link information */
        H5L_info2_t linfo2;                  /* Link information */

        /* Loop over contents of groups */
        for (idx = 0; idx < ginfo.nlinks; idx++) {
            /* Check name of objects */
            if (H5Lget_name_by_idx(gid, ".", H5_INDEX_NAME, H5_ITER_INC, idx, objname, (size_t)NAME_BUF_SIZE,
                                   H5P_DEFAULT) < 0)
                TEST_ERROR;
            if (H5Lget_name_by_idx(gid2, ".", H5_INDEX_NAME, H5_ITER_INC, idx, objname2,
                                   (size_t)NAME_BUF_SIZE, H5P_DEFAULT) < 0)
                TEST_ERROR;
            if (strcmp(objname, objname2) != 0)
                TEST_ERROR;

            /* Get link info */
            if (H5Lget_info2(gid, objname, &linfo, H5P_DEFAULT) < 0)
                TEST_ERROR;
            if (H5Lget_info2(gid2, objname2, &linfo2, H5P_DEFAULT) < 0)
                TEST_ERROR;
            if (linfo.type != linfo2.type)
                TEST_ERROR;

            /* Extra checks for "real" objects */
            if (linfo.type == H5L_TYPE_HARD) {
                hid_t             oid, oid2;     /* IDs of objects within group */
                H5O_info2_t       oinfo, oinfo2; /* Data model object info */
                H5O_native_info_t ninfo, ninfo2; /* Native file format object info */

                /* Compare some pieces of the object info */
                /* Get data model object info */
                if (H5Oget_info_by_name3(gid, objname, &oinfo, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (H5Oget_info_by_name3(gid2, objname2, &oinfo2, H5O_INFO_BASIC, H5P_DEFAULT) < 0)
                    TEST_ERROR;

                /* Get native object info */
                if (H5Oget_native_info_by_name(gid, objname, &ninfo, H5O_NATIVE_INFO_HDR, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (H5Oget_native_info_by_name(gid2, objname2, &ninfo2, H5O_NATIVE_INFO_HDR, H5P_DEFAULT) < 0)
                    TEST_ERROR;

                if (oinfo.type != oinfo2.type)
                    TEST_ERROR;
                if (oinfo.rc != oinfo2.rc)
                    TEST_ERROR;

                /* If NULL messages are preserved, the number of messages
                 * should be the same in the destination.
                 * Otherwise, it should simply be true that the number
                 * of messages hasn't increased.
                 */
                if (H5O_COPY_PRESERVE_NULL_FLAG & copy_flags) {
                    if (ninfo.hdr.nmesgs != ninfo2.hdr.nmesgs)
                        ;
                    else if (ninfo.hdr.nmesgs < ninfo2.hdr.nmesgs)
                        TEST_ERROR;
                }

                /* Check for object already having been compared */
                if (token_lookup(gid, &oinfo))
                    continue;
                else
                    token_insert(&oinfo);

                /* Open objects */
                if ((oid = H5Oopen(gid, objname, H5P_DEFAULT)) < 0)
                    FAIL_STACK_ERROR;
                if ((oid2 = H5Oopen(gid2, objname2, H5P_DEFAULT)) < 0)
                    FAIL_STACK_ERROR;

                /* Compare objects within group */
                switch (oinfo.type) {
                    case H5O_TYPE_GROUP:
                        /* Compare groups */
                        if (compare_groups(oid, oid2, pid, depth - 1, copy_flags) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_DATASET:
                        /* Compare datasets */
                        if (compare_datasets(oid, oid2, pid, NULL) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_NAMED_DATATYPE:
                        /* Compare datatypes */
                        if (H5Tequal(oid, oid2) != true)
                            TEST_ERROR;
                        break;

                    case H5O_TYPE_MAP:
                        assert(0 && "maps not supported in native VOL connector");

                        /* clang complains about implicit fallthrough here and
                         * our usual attributes and fall-through comments don't
                         * quiet the compiler.
                         */
                        H5_CLANG_DIAG_OFF("implicit-fallthrough")
                    case H5O_TYPE_UNKNOWN:
                    case H5O_TYPE_NTYPES:
                    default:
                        assert(0 && "Unknown type of object");
                        break;
                        H5_CLANG_DIAG_ON("implicit-fallthrough")
                } /* end switch */

                /* Close objects */
                if (H5Oclose(oid) < 0)
                    TEST_ERROR;
                if (H5Oclose(oid2) < 0)
                    TEST_ERROR;
            } /* end if */
            else {
                /* Check that both links are the same size */
                if (linfo.u.val_size != linfo2.u.val_size)
                    TEST_ERROR;

                /* Compare link values */
                if (linfo.type == H5L_TYPE_SOFT ||
                    (linfo.type >= H5L_TYPE_UD_MIN && linfo.type <= H5L_TYPE_MAX)) {
                    char linkval[NAME_BUF_SIZE];  /* Link value */
                    char linkval2[NAME_BUF_SIZE]; /* Link value */

                    /* Get link values */
                    assert(linfo.u.val_size <= NAME_BUF_SIZE);
                    if (H5Lget_val(gid, objname, linkval, (size_t)NAME_BUF_SIZE, H5P_DEFAULT) < 0)
                        TEST_ERROR;
                    if (H5Lget_val(gid2, objname2, linkval2, (size_t)NAME_BUF_SIZE, H5P_DEFAULT) < 0)
                        TEST_ERROR;

                    /* Compare link data */
                    if (memcmp(linkval, linkval2, linfo.u.val_size) != 0)
                        TEST_ERROR;
                } /* end else-if */
                else {
                    assert(0 && "Unknown type of link");
                } /* end else */
            }     /* end else */
        }         /* end for */
    }             /* end if */

    /* Check if the attributes are equal */
    if (compare_std_attributes(gid, gid2, pid) != true)
        TEST_ERROR;

    /* Groups should be the same. :-) */
    return true;

error:
    H5E_BEGIN_TRY
    {
    }
    H5E_END_TRY
    return false;
} /* end compare_groups() */

/*-------------------------------------------------------------------------
 * Function:    compare_idx_type
 *
 * Purpose:     If using new format, the index array type should be NEW_TYPE
 *        If not, the index array type should be OLD_TYPE
 *
 * Return:    true if the index type retrieved for the dataset DID is
 *            as expected
 *            false if not
 *
 *-------------------------------------------------------------------------
 */
static int
compare_idx_type(hid_t fapl, hid_t did, H5D_chunk_index_t new_type, H5D_chunk_index_t old_type)
{
    H5D_chunk_index_t idx_type; /* Dataset chunk index type */
    H5F_libver_t      low;      /* File format low bound */

    /* Get the chunk index type */
    if (H5D__layout_idx_type_test(did, &idx_type) < 0)
        FAIL_STACK_ERROR;

    /* Check if we are using the latest version of the format */
    if (H5Pget_libver_bounds(fapl, &low, NULL) < 0)
        FAIL_STACK_ERROR;

    /* Verify index type */
    if (low == H5F_LIBVER_LATEST) {
        if (idx_type != new_type)
            TEST_ERROR;
    }
    else if (idx_type != old_type)
        TEST_ERROR;

    return true;
error:
    return false;
} /* compare_idx_type() */

/*-------------------------------------------------------------------------
 * Function:    test_copy_named_datatype
 *
 * Purpose:     Create name datatype in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_named_datatype(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): named datatype");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datatype from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATATYPE_SIMPLE, fid_dst, NAME_DATATYPE_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the datatype for copy */
    if ((tid = H5Topen2(fid_src, NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the copied datatype */
    if ((tid2 = H5Topen2(fid_dst, NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_named_datatype */

/*-------------------------------------------------------------------------
 * Function:    test_copy_named_datatype_vl
 *
 * Purpose:     Create name vlen datatype in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_named_datatype_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): named vlen datatype");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datatype from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATATYPE_VL, fid_dst, NAME_DATATYPE_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the datatype for copy */
    if ((tid = H5Topen2(fid_src, NAME_DATATYPE_VL, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the copied datatype */
    if ((tid2 = H5Topen2(fid_dst, NAME_DATATYPE_VL, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_named_datatype_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_named_datatype_vl_vl
 *
 * Purpose:     Create named vlen of vlen datatype in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_named_datatype_vl_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): named nested vlen datatype");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create first vlen datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create second (nested) vlen datatype */
    if ((tid2 = H5Tvlen_create(tid)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL_VL, tid2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the first datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the second datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datatype from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATATYPE_VL_VL, fid_dst, NAME_DATATYPE_VL_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the datatype for copy */
    if ((tid = H5Topen2(fid_src, NAME_DATATYPE_VL_VL, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the copied datatype */
    if ((tid2 = H5Topen2(fid_dst, NAME_DATATYPE_VL_VL, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_named_datatype_vl_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_named_datatype_attr_self
 *
 * Purpose:     Create name datatype in SRC file, with an attribute that
 *              uses that named datatype as its datatype, and copy it to
 *              DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_named_datatype_attr_self(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t       fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t       tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    hid_t       aid     = H5I_INVALID_HID;                            /* Attribute ID */
    hid_t       sid     = H5I_INVALID_HID;                            /* Dataspace ID */
    hsize_t     dims[2] = {3, 4};                                     /* Dataspace dimensions */
    H5O_info2_t oinfo, oinfo2;                                        /* Object info */
    H5G_info_t  ginfo;                                                /* Group info */
    bool        same_type;
    char        src_filename[NAME_BUF_SIZE];
    char        dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): named datatype with self-referential attribute");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dims, NULL)) < 0)
        TEST_ERROR;

    /* create attribute */
    if ((aid = H5Acreate2(tid, "attr_self", tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach other attributes to the dataset */
    if (test_copy_attach_attributes(tid, tid) < 0)
        TEST_ERROR;

    /* close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datatype from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATATYPE_SIMPLE, fid_dst, NAME_DATATYPE_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the source datatype */
    if ((tid = H5Topen2(fid_src, NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the copied datatype */
    if ((tid2 = H5Topen2(fid_dst, NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* open the destination attribute */
    if ((aid = H5Aopen(tid2, "attr_self", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination attribute's datatype */
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;

    /* verify that the attribute's datatype is committed */
    if (H5Tcommitted(tid) != true)
        TEST_ERROR;

    /* verify that the tokens of the datatypes are the same */
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid2, &oinfo2, H5O_INFO_BASIC) < 0)
        TEST_ERROR;

    same_type = true;
    if (oinfo.fileno == oinfo2.fileno) {
        int token_cmp;
        if (H5Otoken_cmp(tid2, &oinfo.token, &oinfo2.token, &token_cmp) < 0)
            TEST_ERROR;
        if (token_cmp)
            same_type = false;
    }
    else
        same_type = false;

    if (!same_type)
        FAIL_PUTS_ERROR("destination attribute does not use the same committed datatype");

    /* Verify that there are only 2 links int he destination root group */
    if (H5Gget_info(fid_dst, &ginfo) < 0)
        if (ginfo.nlinks != 2)
            FAIL_PUTS_ERROR("unexpected number of links in destination root group");

    /* close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the datatypes */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Aclose(aid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_named_datatype_attr_self */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_simple
 *
 * Purpose:     Create a simple dataset in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_simple(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    int     i, j;                                                 /* local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): simple dataset");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_simple */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_versionbounds
 *
 * Purpose:     Verify copying dataset works as expected in various version
 *              bound combination.
 *
 * Description:
 *              Create a simple dataset in SRC file using default versions.
 *              For each valid version bound combination, create a DST file,
 *              and attempt to copy the SRC dataset to the DST file.
 *              When copying fails, verify that the failure is a result of
 *              the invalid bounds, that is, DST has lower bounds than SRC.
 *
 * Return:      Success:        0
 *              Failure:        1
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_versionbounds(hid_t fcpl_src, hid_t fapl_src)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* Source and destination file IDs */
    hid_t   fapl_dst = H5I_INVALID_HID;                           /* File access plist for dest file */
    hid_t   sid      = H5I_INVALID_HID;                           /* Dataspace ID */
    hid_t   did_src = H5I_INVALID_HID, did_dst = H5I_INVALID_HID; /* Source and destination dataset IDs */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    char    src_fname[NAME_BUF_SIZE];                             /* Name of source file */
    char    dst_fname[NAME_BUF_SIZE];                             /* Name of destination file */
    H5F_libver_t low, high;                                       /* File format bounds */
    unsigned     srcdset_layoutversion;                           /* Layout version of source dataset */
    int          i, j;                                            /* Local index variables */
    H5D_t       *dsetp = NULL;                                    /* Pointer to internal dset structure */
    herr_t       ret;                                             /* Generic return value */

    TESTING("H5Ocopy(): simple dataset with version bounds");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Create a file access property list for destination file */
    if ((fapl_dst = h5_fileaccess()) < 0)
        TEST_ERROR;

    /* Initialize the filenames */
    h5_fixname(FILENAME[4], fapl_src, src_fname, sizeof src_fname);
    h5_fixname(FILENAME[5], fapl_dst, dst_fname, sizeof dst_fname);

    /* Reset file token checking info */
    token_reset();

    /* Create source file */
    fid_src = H5Fcreate(src_fname, H5F_ACC_TRUNC, fcpl_src, fapl_src);
    if (fid_src < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* Create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* Create 2D int dataset in SRC file */
    did_src =
        H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    if (did_src < 0)
        TEST_ERROR;

    /* Write data into SRC file */
    ret = H5Dwrite(did_src, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf);
    if (ret < 0)
        TEST_ERROR;

    /* Get the internal dset ptr to get the fill version for verifying later */
    if ((dsetp = (H5D_t *)H5VL_object(did_src)) == NULL)
        TEST_ERROR;

    srcdset_layoutversion = dsetp->shared->layout.version;

    /* Close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Close the dataset */
    if (H5Dclose(did_src) < 0)
        TEST_ERROR;

    /* Close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* Open the source file with read-only */
    fid_src = H5Fopen(src_fname, H5F_ACC_RDONLY, fapl_src);
    if (fid_src < 0)
        TEST_ERROR;

    /* Loop through all the combinations of low/high library format bounds,
       skipping invalid combinations.  Create a destination file and copy the
       source dataset to it, then verify */
    for (low = H5F_LIBVER_EARLIEST; low < H5F_LIBVER_NBOUNDS; low++) {
        for (high = H5F_LIBVER_EARLIEST; high < H5F_LIBVER_NBOUNDS; high++) {

            /* Set version bounds */
            H5E_BEGIN_TRY
            {
                ret = H5Pset_libver_bounds(fapl_dst, low, high);
            }
            H5E_END_TRY

            if (ret < 0) /* Invalid low/high combinations */
                continue;

            /* Create destination file */
            fid_dst = H5Fcreate(dst_fname, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_dst);
            if (fid_dst < 0)
                TEST_ERROR;

            /* Create an uncopied object in destination file so that tokens
               in source and destination files aren't the same */
            if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                TEST_ERROR;

            /* Try to copy the dataset */
            H5E_BEGIN_TRY
            {
                ret = H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT,
                              H5P_DEFAULT);
            }
            H5E_END_TRY

            /* If copy failed, check if the failure is expected */
            if (ret < 0) {
                /* Failure is valid if layout version of source dataset is
                   greater than destination */
                if (srcdset_layoutversion <= H5O_layout_ver_bounds[high])
                    TEST_ERROR;

                /* Close the DST file before continue */
                if (H5Fclose(fid_dst) < 0)
                    TEST_ERROR;
                continue;
            }

            /* Close the DST file */
            if (H5Fclose(fid_dst) < 0)
                TEST_ERROR;

            /* Open destination file */
            fid_dst = H5Fopen(dst_fname, H5F_ACC_RDWR, fapl_dst);
            if (fid_dst < 0)
                TEST_ERROR;

            /* Open the datasets to compare */
            did_src = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT);
            if (did_src < 0)
                TEST_ERROR;
            did_dst = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT);
            if (did_dst < 0)
                TEST_ERROR;

            /* Check if the datasets are equal */
            if (compare_datasets(did_src, did_dst, H5P_DEFAULT, buf) != true)
                TEST_ERROR;

            /* Close the datasets */
            if (H5Dclose(did_dst) < 0)
                TEST_ERROR;
            if (H5Dclose(did_src) < 0)
                TEST_ERROR;

            /* Close the DST file */
            if (H5Fclose(fid_dst) < 0)
                TEST_ERROR;

        } /* for high */
    }     /* for low */

    /* Close property list and source file */
    if (H5Pclose(fapl_dst) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did_dst);
        H5Dclose(did_src);
        H5Sclose(sid);
        H5Pclose(fapl_dst);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY

    return 1;
} /* end test_copy_dataset_versionbounds */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_simple_samefile
 *
 * Purpose:     Create a simple dataset in SRC file and copy it to SRC file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_simple_samefile(hid_t fcpl, hid_t fapl)
{
    hid_t   fid = H5I_INVALID_HID;                         /* File ID */
    hid_t   sid = H5I_INVALID_HID;                         /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                   /* Buffer for writing data */
    hsize_t dim2d[2];                                      /* Dataset dimensions */
    int     i, j;                                          /* local index variables */
    char    filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): simple dataset within the same file");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], fapl, filename, sizeof filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid = H5Fcreate(filename, H5F_ACC_TRUNC, fcpl, fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* open the source file with read-write */
    if ((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid, NAME_DATASET_SIMPLE, fid, NAME_DATASET_SIMPLE2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_simple_samefile */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_simple_empty
 *
 * Purpose:     Create a simple dataset in SRC file and copy it to DST file
 *              (Note: dataset has no data)
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_simple_empty(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool test_open)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): empty and opened contiguous dataset");
    }
    else {
        TESTING("H5Ocopy(): empty contiguous dataset");
    }

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    if (!test_open) {

        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_simple_empty */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compound
 *
 * Purpose:     Create a compound dataset in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compound(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim1d[1];                                             /* Dataset dimensions */
    typedef struct comp_t {
        int    a;
        double d;
    } comp_t;
    comp_t buf[DIM_SIZE_1]; /* Buffer for writing data */
    int    i;               /* Local index variable */
    char   src_filename[NAME_BUF_SIZE];
    char   dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compound dataset");

    memset(buf, 0, sizeof(buf));
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].a = i;
        buf[i].d = 1.0 / (double)(i + 1);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcreate(H5T_COMPOUND, sizeof(comp_t))) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "int_name", HOFFSET(comp_t, a), H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "double_name", HOFFSET(comp_t, d), H5T_NATIVE_DOUBLE) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_COMPOUND, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_COMPOUND, fid_dst, NAME_DATASET_COMPOUND, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_COMPOUND, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_COMPOUND, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compound */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked
 *
 * Purpose:     Create a chunked dataset in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim1d[1];                                             /* Dataset dimensions */
    hsize_t max_dim1d[1];                                         /* Dataset max. dimensions */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    float   buf1d[DIM_SIZE_1];                                    /* Buffer for writing data */
    float   buf2d[DIM_SIZE_1][DIM_SIZE_2];                        /* Buffer for writing data */
    int     i, j;                                                 /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): chunked dataset");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf1d[i] = (float)i / 2.0F;
        for (j = 0; j < DIM_SIZE_2; j++)
            buf2d[i][j] = (float)i + ((float)j / 100.0F);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set 1-D dataspace dimensions */
    dim1d[0]     = DIM_SIZE_1;
    max_dim1d[0] = H5S_UNLIMITED;

    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, max_dim1d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Create 1-D dataset: chunked, non-filterd, with data
     *               dims=max dims=chunk dims
     *               H5D_ALLOC_TIME_INC (default)
     */
    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, dim1d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, dim1d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set 2-D dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Create 2-D dataset: chunked, non-filterd, with data, dims=chunk dims,
     *               H5D_ALLOC_TIME_INC (default)
     */

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist to be the same as dims2d */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Create 2-D dataset: chunked, non-filterd, with data, dims=chunk dims,
     *               H5D_ALLOC_TIME_EARLY
     */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /*
     * Create 2-D dataset: chunked, non-filterd, with data, dims=max dims=chunk dims,
     *               H5D_ALLOC_TIME_LATE
     */
    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, dim2d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist to be the same as dims2d */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_LATE) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datasets from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2, fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3, fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED_SINGLE, fid_dst, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2_SINGLE, fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3_SINGLE, fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED4_SINGLE, fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the 1-D destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_EARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf1d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the 1-D destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf1d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the 2-D dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf2d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the 2-D dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf2d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the 2-D dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf2d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the 2-D dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf2d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the 2-D dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf2d) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_empty
 *
 * Purpose:     Create a chunked dataset in SRC file and copy it to DST file
 *              (Note: dataset has no data)
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_empty(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim1d[1];                                             /* Dataset dimensions */
    hsize_t max_dim1d[1];                                         /* Dataset max. dimensions */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): empty chunked dataset");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set 1-D dataspace dimensions */
    dim1d[0]     = DIM_SIZE_1;
    max_dim1d[0] = H5S_UNLIMITED;

    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, max_dim1d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 1-D dataset: chunked, empty, non-filtered,
     *               dims=max dims=chunk dims, H5D_ALLOC_TIME_INC(default)
     */

    /* Set 1-D dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, dim1d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, dim1d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set 2-D dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, empty, non-filtered,
     *               dims=chunk dims, H5D_ALLOC_TIME_INC (default)
     */

    /* Set 2-D dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, empty, non-filtered, dims=chunk dims
     *               H5D_ALLOC_TIME_EARLY
     */
    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, empty, non-filtered,
     *               dims=max dims=chunk dims, H5D_ALLOC_TIME_LATE
     */

    /* Set 2-D dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, dim2d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;

    /* Set allocation time to late */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_LATE) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datasets from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED_SINGLE, fid_dst, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2, fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2_SINGLE, fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3, fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3_SINGLE, fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED4_SINGLE, fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_EARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED_SINGLE in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED2 in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED2 at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset "NAME_DATASET_CHUNKED2_SINGLE in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED2_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED3 in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED3 at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED3_SINGLE in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED3_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED4_SINGLE in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED4_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_empty */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_sparse
 *
 * Purpose:     Create a chunked dataset with unlimited dimensions and un-written
 *              chunks in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_sparse(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim1d[1];                                             /* Dataset dimensions */
    hsize_t new_dim1d[1];                                         /* Dataset dimensions */
    hsize_t max_dim1d[1];                                         /* Dataset max. dimensions */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t new_dim2d[2];                                         /* Dataset dimensions */
    hsize_t max_dim2d[2];                                         /* Dataset max. dimensions */
    hsize_t chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    float   buf1d[DIM_SIZE_1];                                    /* Buffer for writing data */
    float   buf2d[DIM_SIZE_1][DIM_SIZE_2];                        /* Buffer for writing data */
    int     i, j;                                                 /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): sparse dataset");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf1d[i] = (float)i / 10.0F;
        for (j = 0; j < DIM_SIZE_2; j++)
            buf2d[i][j] = (float)i + ((float)j / 100.0F);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set 1-D dataspace dimensions */
    dim1d[0]     = DIM_SIZE_1;
    max_dim1d[0] = H5S_UNLIMITED;

    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, max_dim1d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Set extended dataset dimensions */
    new_dim1d[0] = DIM_SIZE_1 * 2;

    /* Extend dataset's dimensions */
    if (H5Dset_extent(did, new_dim1d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Change 1-D dataspace dimensions */
    dim1d[0]     = DIM_SIZE_1;
    max_dim1d[0] = MAX_DIM_SIZE_1;

    /* create 1-D dataspace */
    if ((sid = H5Screate_simple(1, dim1d, max_dim1d)) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf1d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Set extended dataset dimensions */
    new_dim1d[0] = DIM_SIZE_1 * 2;

    /* Extend dataset's dimensions */
    if (H5Dset_extent(did, new_dim1d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set 2-D dataspace dimensions */
    dim2d[0]     = DIM_SIZE_1;
    dim2d[1]     = DIM_SIZE_2;
    max_dim2d[0] = H5S_UNLIMITED;
    max_dim2d[1] = H5S_UNLIMITED;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, max_dim2d)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Set extended dataset dimensions */
    new_dim2d[0] = DIM_SIZE_1 * 2;
    new_dim2d[1] = DIM_SIZE_2 * 2;

    /* Extend dataset's dimensions */
    if (H5Dset_extent(did, new_dim2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Change 2-D dataspace dimensions */
    dim2d[0]     = DIM_SIZE_1;
    dim2d[1]     = DIM_SIZE_2;
    max_dim2d[0] = MAX_DIM_SIZE_1;
    max_dim2d[1] = MAX_DIM_SIZE_2;

    /* create 2-D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, max_dim2d)) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED4, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf2d) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* Set extended dataset dimensions */
    new_dim2d[0] = DIM_SIZE_1 * 2;
    new_dim2d[1] = DIM_SIZE_2 * 2;

    /* Extend dataset's dimensions */
    if (H5Dset_extent(did, new_dim2d) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datasets from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2, fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3, fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED4, fid_dst, NAME_DATASET_CHUNKED4, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_EARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_BT2, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED4, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED4, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the array index type is correct */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_sparse */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compressed
 *
 * Purpose:     Create a compressed, chunked dataset in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compressed(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
#ifdef H5_HAVE_FILTER_DEFLATE
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    float   buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    int     i, j;                                                 /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];
#endif /* H5_HAVE_FILTER_DEFLATE */

    TESTING("H5Ocopy(): compressed dataset");

#ifndef H5_HAVE_FILTER_DEFLATE
    (void)fcpl_src;
    (void)fcpl_dst;
    (void)src_fapl;
    (void)dst_fapl; /* Silence compiler */
    SKIPPED();
    puts("    Deflation filter not available");
#else  /* H5_HAVE_FILTER_DEFLATE */
    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 100.0F; /* Something easy to compress */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, filtered, with data
     *               dims=max dims=chunk dims, H5D_ALLOC_TIME_INC(default)
     */
    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, dim2d)) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, filtered, with data
     *               dims=chunk dims, H5D_ALLOC_TIME_EARLY
     */
    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * create 2-D dataset: chunked, filtered, with data
     *               dims=chunk dims, H5D_ALLOC_TIME_LATE
     */
    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* Set allocation time to late */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_LATE) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2, fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED2_SINGLE, fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED3_SINGLE, fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED4_SINGLE, fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* Re-open the source and destination files for verification */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED2_SINGLE at source */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED2_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED2_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED3_SINGLE at source */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED3_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED3_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset NAME_DATASET_CHUNKED4_SINGLE at source */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the copied dataset NAME_DATASET_CHUNKED4_SINGLE at destination */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED4_SINGLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_SINGLE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
#endif /* H5_HAVE_FILTER_DEFLATE */
    return 0;

#ifdef H5_HAVE_FILTER_DEFLATE
error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
#endif /* H5_HAVE_FILTER_DEFLATE */
} /* end test_copy_dataset_compressed */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_no_edge_filt
 *
 * Purpose:     Create a compressed, chunked dataset in SRC file and copy it to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_no_edge_filt(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool test_open)
{
#ifdef H5_HAVE_FILTER_DEFLATE
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    float   buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    int     i, j;                                                 /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];
#endif /* H5_HAVE_FILTER_DEFLATE */

    if (test_open) {
        TESTING("H5Ocopy(): compressed and opened dataset with no edge filters");
    }
    else {
        TESTING("H5Ocopy(): compressed dataset with no edge filters");
    }

#ifndef H5_HAVE_FILTER_DEFLATE
    (void)fcpl_src;
    (void)fcpl_dst;
    (void)src_fapl;
    (void)dst_fapl; /* Silence compiler */
    SKIPPED();
    puts("    Deflation filter not available");
#else  /* H5_HAVE_FILTER_DEFLATE */
    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 100.0F; /* Something easy to compress */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist, and disable partial chunk filters */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;
    if (H5Pset_chunk_opts(pid, H5D_CHUNK_DONT_FILTER_PARTIAL_CHUNKS) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    if (!test_open) {

        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* H5Pset_chunk_opts() will set layout version to 4 which will use latest indexing available */
    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_FARRAY) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
#endif /* H5_HAVE_FILTER_DEFLATE */
    return 0;

#ifdef H5_HAVE_FILTER_DEFLATE
error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
#endif /* H5_HAVE_FILTER_DEFLATE */
} /* end test_copy_dataset_no_edge_filt */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compact
 *
 * Purpose:     Create a compact dataset in SRC file and copy it to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compact(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool test_open)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    float   buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    int     i, j;                                                 /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): compact and opened dataset");
    }
    else {
        TESTING("H5Ocopy(): compact dataset");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = (float)i + (float)j / 100.0F;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_COMPACT, H5T_NATIVE_FLOAT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_FLOAT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_COMPACT, fid_dst, NAME_DATASET_COMPACT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_COMPACT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_COMPACT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compact */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_external
 *
 * Purpose:     Create an external dataset in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_external(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    int     i;
    hsize_t size;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): external dataset");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* create an empty external file */
    fclose(fopen(FILE_EXT, "w"));

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* set dataset creation plist */
    size = DIM_SIZE_1 * sizeof(int);
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_external(pid, FILE_EXT, 0, size) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_EXTERNAL, H5T_NATIVE_INT, sid, H5P_DEFAULT, pid,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close external plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_EXTERNAL, fid_dst, NAME_DATASET_EXTERNAL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_EXTERNAL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_EXTERNAL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_external */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_named_dtype
 *
 * Purpose:     Create a dataset that uses a named datatype in SRC file and
 *              copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_named_dtype(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    int     i;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): dataset that uses named datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_NAMED_DTYPE, tid, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_NAMED_DTYPE, fid_dst, NAME_DATASET_NAMED_DTYPE, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_NAMED_DTYPE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_NAMED_DTYPE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_named_dtype */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_named_dtype_hier
 *
 * Purpose:     Create a hierarchy of datasets that use a named datatype in
 *              SRC file and copy hierarchy to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_named_dtype_hier(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    int     i;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): hier. of datasets using named datatype inside hier.");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create group to place all objects in */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create named datatype _inside_ hierarchy to copy */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create first dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_NAMED_DTYPE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create second dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_NAMED_DTYPE2, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_named_dtype_hier */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_named_dtype_hier_outside
 *
 * Purpose:     Create a hierarchy of datasets that use a named datatype that
 *              is outside of hierarchy in SRC file and copy hierarchy to DST
 *              file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_named_dtype_hier_outside(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    int     i;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): hier. of datasets using named datatype outside hier.");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create group to place all objects in */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create named datatype _outside_ hierarchy to copy */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create first dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_NAMED_DTYPE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create second dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_NAMED_DTYPE2, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_named_dtype_hier_outside */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_multi_ohdr_chunks
 *
 * Purpose:     Create a pair of datasets that add attributes in a way that
 *              creates lots of object header chunks in SRC file and copy
 *              datasets to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_multi_ohdr_chunks(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl,
                                    bool test_open)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    int     i;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): opened datasets that have multiple ohdr chunks");
    }
    else {
        TESTING("H5Ocopy(): datasets that have multiple ohdr chunks");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create group to place all objects in */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create first dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_MULTI_OHDR, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* create second dataset at SRC file */
    if ((did2 = H5Dcreate2(gid, NAME_DATASET_MULTI_OHDR2, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                           H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* Add attributes to datasets in a way that creates lots of chunks */
    if (test_copy_attach_paired_attributes(did, did2, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the first dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    if (!test_open) {

        /* close the second dataset */
        if (H5Dclose(did2) < 0)
            TEST_ERROR;

        /* close group */
        if (H5Gclose(gid) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (test_open) {
        /* close the second dataset */
        if (H5Dclose(did2) < 0)
            TEST_ERROR;
    }
    else
        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_multi_ohdr_chunks */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_attr_named_dtype
 *
 * Purpose:     Create a pair of datasets that add attributes that use
 *              named datatypes in SRC file and copy datasets to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_attr_named_dtype(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    int     i;
    hsize_t dim1d[1];
    int     buf[DIM_SIZE_1];
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): objects with attributes using named datatypes");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create group to place all objects in */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create named datatype _outside_ hierarchy to copy */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create first dataset at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_MULTI_OHDR, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* create second dataset at SRC file */
    if ((did2 = H5Dcreate2(gid, NAME_DATASET_MULTI_OHDR2, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* Add attributes to datasets in a way that creates lots of chunks */
    if (test_copy_attach_paired_attributes(did, did2, tid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the first dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the second dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_attr_named_dtype */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_contig_vl
 *
 * Purpose:     Create a contiguous dataset w/VLEN datatype in SRC
 *              file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_contig_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): contiguous dataset with VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_contig_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_vl
 *
 * Purpose:     Create a chunked dataset w/VLEN datatype in SRC
 *              file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): chunked dataset with VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL2, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_VL2, fid_dst, NAME_DATASET_VL2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Pclose(pid);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compact_vl
 *
 * Purpose:     Create a compact dataset w/VLEN datatype in SRC
 *              file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compact_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compact dataset with VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compact_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_attribute_vl
 *
 * Purpose:     Create a simple dataset with vlen attributes in SRC file
 *               and copy it to DST file  (Note: dataset has no data)
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attribute_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   aid = H5I_INVALID_HID, aid2 = H5I_INVALID_HID;        /* Attribute IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): variable length attribute");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach VL attribute to the dataset */
    if (test_copy_attach_attribute_vl(did) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the attributes are equal */

    if ((aid = H5Aopen_by_idx(did, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)0, H5P_DEFAULT,
                              H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((aid2 = H5Aopen_by_idx(did2, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)0, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (compare_attribute(aid, aid2, H5P_DEFAULT, NULL, did) != true)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid2) < 0)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Aclose(aid2);
        H5Aclose(aid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_simple_empty */

/*-------------------------------------------------------------------------
 * Function:    attach_attribute_compound_vlstr
 *
 * Purpose:     Attach a compound datatype with a variable length string to the object
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static int
attach_attribute_compound_vlstr(hid_t loc_id)
{
    hid_t   aid        = H5I_INVALID_HID; /* Attribute ID */
    hid_t   sid        = H5I_INVALID_HID; /* Dataspace ID */
    hid_t   tid        = H5I_INVALID_HID; /* Datatype ID */
    hid_t   vl_str_tid = H5I_INVALID_HID; /* Variable length string datatype ID */
    hid_t   cmpd_tid   = H5I_INVALID_HID; /* Compound datatype ID */
    hsize_t dim1       = 1;               /* Dimension size */
    typedef struct {                      /* Compound structure for the attribute */
        int   i;
        char *v;
    } s1;
    size_t len;
    s1     buf       = {0, NULL}; /* Buffer */
    int    ret_value = -1;        /* Return value */

    /* Create dataspace */
    if ((sid = H5Screate_simple(1, &dim1, NULL)) < 0)
        goto done;

    /* Create an integer datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        goto done;

    /* Create a variable length string */
    if ((vl_str_tid = H5Tcopy(H5T_C_S1)) < 0)
        goto done;
    if (H5Tset_size(vl_str_tid, H5T_VARIABLE) < 0)
        goto done;

    /* Create a compound datatype with a variable length string and an integer */
    if ((cmpd_tid = H5Tcreate(H5T_COMPOUND, sizeof(s1))) < 0)
        goto done;
    if (H5Tinsert(cmpd_tid, "i", HOFFSET(s1, i), tid) < 0)
        goto done;
    if (H5Tinsert(cmpd_tid, "v", HOFFSET(s1, v), vl_str_tid) < 0)
        goto done;

    /* Attach an attribute to the object */
    if ((aid = H5Acreate2(loc_id, "attr_cmpd_vlstr", cmpd_tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        goto done;

    /* Write to the attribute */
    len   = strlen(ATTR_CMPD_STRING) + 1;
    buf.i = 9;
    if (NULL == (buf.v = (char *)calloc(len, sizeof(char))))
        goto done;
    strncpy(buf.v, ATTR_CMPD_STRING, len);
    if (H5Awrite(aid, cmpd_tid, &buf) < 0)
        goto done;

    ret_value = 0;

done:
    if (sid > 0)
        H5Sclose(sid);
    if (tid > 0)
        H5Tclose(tid);
    if (vl_str_tid > 0)
        H5Tclose(vl_str_tid);
    if (cmpd_tid > 0)
        H5Tclose(cmpd_tid);
    if (aid > 0)
        H5Aclose(aid);

    free(buf.v);

    return ret_value;
} /* attach_attribute_compound_vlstr */

/*-------------------------------------------------------------------------
 * Function:    compare_attribute_compound_vlstr
 *
 * Purpose:     Compare data of the attributes attached to the two objects.
 *        The attribute is a  compound datatype with a variable length string.
 *
 * Return:      Non-negative on success/Negative on failure
 *
 *-------------------------------------------------------------------------
 */
static int
compare_attribute_compound_vlstr(hid_t loc, hid_t loc2)
{
    hid_t aid = H5I_INVALID_HID, aid2 = H5I_INVALID_HID; /* Attribute IDs */
    hid_t tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID; /* Datatype IDs */
    hid_t sid = H5I_INVALID_HID, sid2 = H5I_INVALID_HID; /* Dataspace IDs */
    hid_t dxpl_id = H5I_INVALID_HID;
    typedef struct { /* Compound structure for the attribute */
        int   i;
        char *v;
    } s1;
    s1 rbuf;  /* Buffer for data read */
    s1 rbuf2; /* Buffer for data read */

    /* Open the attributes attached to the objects */
    if ((aid = H5Aopen_by_idx(loc, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)0, H5P_DEFAULT,
                              H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    if ((aid2 = H5Aopen_by_idx(loc2, ".", H5_INDEX_CRT_ORDER, H5_ITER_INC, (hsize_t)0, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Get the attributes' datatypes */
    if ((tid = H5Aget_type(aid)) < 0)
        FAIL_STACK_ERROR;
    if ((tid2 = H5Aget_type(aid2)) < 0)
        FAIL_STACK_ERROR;

    /* Get the attributes' dataspaces */
    if ((sid = H5Aget_space(aid)) < 0)
        FAIL_STACK_ERROR;
    if ((sid2 = H5Aget_space(aid2)) < 0)
        FAIL_STACK_ERROR;

    /* Read the attributes */
    if (H5Aread(aid, tid, &rbuf) < 0)
        FAIL_STACK_ERROR;
    if (H5Aread(aid2, tid2, &rbuf2) < 0)
        FAIL_STACK_ERROR;

    /* Compare the attributes' data */
    if (rbuf.i != rbuf2.i)
        FAIL_STACK_ERROR;
    if (strlen(rbuf.v) != strlen(rbuf2.v))
        FAIL_STACK_ERROR;
    if (memcmp(rbuf.v, rbuf2.v, strlen(rbuf.v)) != 0)
        FAIL_STACK_ERROR;

    /* Reclaim vlen buffer */
    if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
        TEST_ERROR;
    if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
        TEST_ERROR;
    if (H5Treclaim(tid, sid, dxpl_id, &rbuf) < 0)
        TEST_ERROR;
    if (H5Treclaim(tid, sid, dxpl_id, &rbuf2) < 0)
        TEST_ERROR;
    if (H5Pclose(dxpl_id) < 0)
        TEST_ERROR;

    /* Close the dataspaces */
    if (H5Sclose(sid) < 0)
        FAIL_STACK_ERROR;
    if (H5Sclose(sid2) < 0)
        FAIL_STACK_ERROR;

    /* Close the attributes */
    if (H5Aclose(aid) < 0)
        FAIL_STACK_ERROR;
    if (H5Aclose(aid2) < 0)
        FAIL_STACK_ERROR;
    return true;

error:
    H5E_BEGIN_TRY
    {
        H5Aclose(aid);
        H5Aclose(aid2);
        H5Treclaim(tid, sid, H5P_DEFAULT, &rbuf);
        H5Treclaim(tid, sid, H5P_DEFAULT, &rbuf2);
        H5Sclose(sid);
        H5Sclose(sid2);
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Pclose(dxpl_id);
    }
    H5E_END_TRY
    return false;

} /* compare_attribute_compound_vlstr() */

/*-------------------------------------------------------------------------
 * Function:    test_copy_attribute_compound_vlstr
 *
 * Purpose:     Create a simple dataset and a group in SRC file.
 *        Both has an attribute with a compound datatype consisting
 *              of a variable length string
 *              Copy the dataset and the group to DST file
 *        This is for HDFFV-7991
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attribute_compound_vlstr(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   aid = H5I_INVALID_HID, aid2 = H5I_INVALID_HID;        /* Attribute IDs */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    char    src_filename[NAME_BUF_SIZE];                          /* Source file name */
    char    dst_filename[NAME_BUF_SIZE];                          /* Destination file name */

    TESTING("H5Ocopy(): attribute with compound datatype consisting of variable length string");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        FAIL_STACK_ERROR;

    /* set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        FAIL_STACK_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        FAIL_STACK_ERROR;

    /* attach an attribute to the dataset */
    if (attach_attribute_compound_vlstr(did) < 0)
        FAIL_STACK_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        FAIL_STACK_ERROR;

    /* create a group */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_EMPTY, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* attach attribute to the group */
    if (attach_attribute_compound_vlstr(gid) < 0)
        FAIL_STACK_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        FAIL_STACK_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        FAIL_STACK_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        FAIL_STACK_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        FAIL_STACK_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* open the src dataset */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* compare the data of the attributes attached to the two datasets */
    if (compare_attribute_compound_vlstr(did, did2) < 0)
        FAIL_STACK_ERROR;

    /* close the datasets */
    if (H5Dclose(did2) < 0)
        FAIL_STACK_ERROR;
    if (H5Dclose(did) < 0)
        FAIL_STACK_ERROR;

    /* Copy the group */
    if (H5Ocopy(fid_src, NAME_GROUP_EMPTY, fid_dst, NAME_GROUP_EMPTY, H5P_DEFAULT, H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* Open the src group */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_EMPTY, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;
    /* Open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_EMPTY, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* compare the data of the attributes attached to the two groups */
    if (compare_attribute_compound_vlstr(gid, gid2) < 0)
        FAIL_STACK_ERROR;

    /* close the groups */
    if (H5Gclose(gid) < 0)
        FAIL_STACK_ERROR;
    if (H5Gclose(gid2) < 0)
        FAIL_STACK_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        FAIL_STACK_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        FAIL_STACK_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Aclose(aid2);
        H5Aclose(aid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Gclose(gid);
        H5Gclose(gid2);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_attribute_compound_vlstr() */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compressed_vl
 *
 * Purpose:     Create a compressed, chunked, VLEN dataset in SRC
 *              file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compressed_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
#ifdef H5_HAVE_FILTER_DEFLATE
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimensions */
    hvl_t   buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    int     i, j, k;                                              /* Local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];
#endif /* H5_HAVE_FILTER_DEFLATE */

    TESTING("H5Ocopy(): compressed dataset with VLEN datatype");

#ifndef H5_HAVE_FILTER_DEFLATE
    (void)fcpl_src;
    (void)fcpl_dst;
    (void)src_fapl;
    (void)dst_fapl; /* Silence compiler */
    SKIPPED();
    puts("    Deflation filter not available");
#else  /* H5_HAVE_FILTER_DEFLATE */
    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        for (j = 0; j < DIM_SIZE_2; j++) {
            buf[i][j].len = (size_t)(j + 1);
            buf[i][j].p   = (int *)malloc(buf[i][j].len * sizeof(int));
            for (k = 0; k < (int)buf[i][j].len; k++)
                ((int *)buf[i][j].p)[k] = i * 10000 + j * 100 + k;
        }
    }

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create and set comp & chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
#endif /* H5_HAVE_FILTER_DEFLATE */
    return 0;

#ifdef H5_HAVE_FILTER_DEFLATE
error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Pclose(pid);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
#endif /* H5_HAVE_FILTER_DEFLATE */
} /* end test_copy_dataset_compressed_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group_empty
 *
 * Purpose:     Create an empty group in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group_empty(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): empty group");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_EMPTY, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_EMPTY, fid_dst, NAME_GROUP_EMPTY, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_EMPTY, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_EMPTY, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group_empty */

/*-------------------------------------------------------------------------
 * Function:    test_copy_root_group
 *
 * Purpose:     Create a root group in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_root_group(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    hid_t   gid_sub = H5I_INVALID_HID;                            /* Sub-group ID */
    hsize_t dim2d[2];
    int     buf[DIM_SIZE_1][DIM_SIZE_2];
    int     i, j;
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): root group");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the group */
    if ((did = H5Dcreate2(fid_src, NAME_GROUP_DATASET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create a sub-group */
    if ((gid_sub = H5Gcreate2(fid_src, NAME_GROUP_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* create another  sub-group */
    if ((gid_sub = H5Gcreate2(fid_src, NAME_GROUP_SUB_2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, "/", fid_dst, "/root_from_src", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, "/", H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, "/root_from_src", H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_root_group */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group
 *
 * Purpose:     Create a group in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    hid_t   gid_sub = H5I_INVALID_HID;                            /* Sub-group ID */
    hsize_t dim2d[2];
    int     buf[DIM_SIZE_1][DIM_SIZE_2];
    int     i, j;
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): simple nested groups");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the group */
    if ((did = H5Dcreate2(fid_src, NAME_GROUP_DATASET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create a sub-group */
    if ((gid_sub = H5Gcreate2(fid_src, NAME_GROUP_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* create another  sub-group */
    if ((gid_sub = H5Gcreate2(fid_src, NAME_GROUP_SUB_2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group_deep
 *
 * Purpose:     Create a deep group hier. in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group_deep(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    hid_t   gid_sub = H5I_INVALID_HID, gid_sub2;                  /* Sub-group IDs */
    hsize_t dim2d[2];
    int     buf[DIM_SIZE_1][DIM_SIZE_2];
    int     i, j, k;                /* Local index variables */
    char    objname[NAME_BUF_SIZE]; /* Sub-group & dataset name buffer */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): deep nested groups");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create nested sub-groups & datasets */
    for (i = 0; i < NUM_SUB_GROUPS; i++) {
        snprintf(objname, sizeof(objname), "Group #%d", i);
        if ((gid_sub = H5Gcreate2(gid, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;

        for (j = 0; j < NUM_SUB_GROUPS; j++) {
            snprintf(objname, sizeof(objname), "Group #%d", j);
            if ((gid_sub2 = H5Gcreate2(gid_sub, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                TEST_ERROR;

            for (k = 0; k < NUM_DATASETS; k++) {
                snprintf(objname, sizeof(objname), "Dataset #%d", k);

                /* add a dataset to the group */
                if ((did = H5Dcreate2(gid_sub2, objname, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                                      H5P_DEFAULT)) < 0)
                    TEST_ERROR;
                if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
                    TEST_ERROR;
                if (H5Dclose(did) < 0)
                    TEST_ERROR;
            } /* end for */

            if (H5Gclose(gid_sub2) < 0)
                TEST_ERROR;
        } /* end for */

        if (H5Gclose(gid_sub) < 0)
            TEST_ERROR;
    } /* end for */

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group_deep */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group_loop
 *
 * Purpose:     Create a group hier. with loops in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group_loop(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID;  /* File IDs */
    hid_t gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;         /* Group IDs */
    hid_t gid_sub = H5I_INVALID_HID, gid_sub2 = H5I_INVALID_HID; /* Sub-group IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): nested groups with loop");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* create sub-groups */
    if ((gid_sub = H5Gcreate2(gid, NAME_GROUP_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if ((gid_sub2 = H5Gcreate2(gid, NAME_GROUP_SUB_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create link to top group */
    if (H5Lcreate_hard(gid, ".", gid_sub2, NAME_GROUP_LOOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* close sub sub group */
    if (H5Gclose(gid_sub2) < 0)
        TEST_ERROR;

    /* close sub group */
    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid_sub2);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group_loop */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group_wide_loop
 *
 * Purpose:     Create a group hier. with loops in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 * Note:        Create groups w/lots of entries in each level, so that "dense"
 *              group form is used.
 *
 * Note:        Also tests multiple links to a locked group during copy.
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group_wide_loop(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t    fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID;  /* File IDs */
    hid_t    gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;         /* Group IDs */
    hid_t    gid_sub = H5I_INVALID_HID, gid_sub2 = H5I_INVALID_HID; /* Sub-group IDs */
    unsigned u, v;                                                  /* Local index variables */
    char     objname[NAME_BUF_SIZE];                                /* Object name buffer */
    char     src_filename[NAME_BUF_SIZE];
    char     dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): wide nested groups with loop");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* create wide sub-group hierarchy, with multiple links to higher groups */
    for (u = 0; u < NUM_WIDE_LOOP_GROUPS; u++) {
        snprintf(objname, sizeof(objname), "%s-%u", NAME_GROUP_SUB, u);
        if ((gid_sub = H5Gcreate2(gid, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;

        for (v = 0; v < NUM_WIDE_LOOP_GROUPS; v++) {
            snprintf(objname, sizeof(objname), "%s-%u", NAME_GROUP_SUB_SUB2, v);
            if ((gid_sub2 = H5Gcreate2(gid_sub, objname, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                FAIL_STACK_ERROR;

            /* Create link to top group */
            if (H5Lcreate_hard(gid, ".", gid_sub2, NAME_GROUP_LOOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
                FAIL_STACK_ERROR;

            /* Create link to sub-group */
            if (H5Lcreate_hard(gid_sub, ".", gid_sub2, NAME_GROUP_LOOP2, H5P_DEFAULT, H5P_DEFAULT) < 0)
                FAIL_STACK_ERROR;

            /* Create link to self :-) */
            if (H5Lcreate_hard(gid_sub2, ".", gid_sub2, NAME_GROUP_LOOP3, H5P_DEFAULT, H5P_DEFAULT) < 0)
                FAIL_STACK_ERROR;

            /* close sub sub group */
            if (H5Gclose(gid_sub2) < 0)
                FAIL_STACK_ERROR;
        } /* end for */

        /* close sub group */
        if (H5Gclose(gid_sub) < 0)
            TEST_ERROR;
    } /* end for */

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the group for copy */
    if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* open the destination group */
    if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the destination group */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the source group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid_sub2);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group_wide_loop */

/*-------------------------------------------------------------------------
 * Function:    test_copy_group_links
 *
 * Purpose:     Create a group and links in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_group_links(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID, fid_ext = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                         /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset ID */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID; /* Group IDs */
    hid_t   plid = H5I_INVALID_HID;                        /* Object copy plist ID */
    hsize_t dim2d[2];
    hsize_t dim1d[1];
    H5L_info2_t linfo;
    int         buf[DIM_SIZE_1][DIM_SIZE_2];
    int         i, j;
    unsigned    expand_soft;
    unsigned    expand_ext;
    unsigned    copy_options;
    char        src_filename[NAME_BUF_SIZE];
    char        dst_filename[NAME_BUF_SIZE];
    char        ext_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): group with links");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, dst_filename, sizeof dst_filename);
    h5_fixname(FILENAME[2], dst_fapl, ext_filename, sizeof ext_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create file to hold external dataset */
    if ((fid_ext = H5Fcreate(ext_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create groups at the SRC file.  Group 2 will hold dangling links. */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid2 = H5Gcreate2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the groups */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (test_copy_attach_attributes(gid2, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the group */
    if ((did = H5Dcreate2(fid_src, NAME_LINK_DATASET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Now create a 1-D dataset in an external file */
    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the external file */
    if ((did = H5Dcreate2(fid_ext, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* make a hard link to the dataset */
    if (H5Lcreate_hard(fid_src, NAME_LINK_DATASET, H5L_SAME_LOC, NAME_LINK_HARD, H5P_DEFAULT, H5P_DEFAULT) <
        0)
        FAIL_STACK_ERROR;

    /* make a soft link to the dataset */
    if (H5Lcreate_soft(NAME_LINK_DATASET, fid_src, NAME_LINK_SOFT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* make an external link to the external dataset */
    if (H5Lcreate_external(ext_filename, NAME_DATASET_SIMPLE, fid_src, NAME_LINK_EXTERN, H5P_DEFAULT,
                           H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* make a dangling soft link */
    if (H5Lcreate_soft("nowhere", fid_src, NAME_LINK_SOFT_DANGLE2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* make a dangling external link */
    if (H5Lcreate_external("no_file", "no_object", fid_src, NAME_LINK_EXTERN_DANGLE2, H5P_DEFAULT,
                           H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    /* close the groups */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the SRC and EXT files */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_ext) < 0)
        TEST_ERROR;

    /* Create the object copy plist */
    if ((plid = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;

    /* Loop over all configurations (expand soft/external links) */
    for (expand_soft = 0; expand_soft <= 1; expand_soft++) {
        for (expand_ext = 0; expand_ext <= 1; expand_ext++) {
            /* Set the correct copy options on the obj copy plist */
            copy_options = 0;
            if (expand_soft)
                copy_options |= H5O_COPY_EXPAND_SOFT_LINK_FLAG;
            if (expand_ext)
                copy_options |= H5O_COPY_EXPAND_EXT_LINK_FLAG;
            if (H5Pset_copy_object(plid, copy_options) < 0)
                TEST_ERROR;

            /* open the source file with read-only */
            if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
                TEST_ERROR;

            /* create destination file */
            if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
                TEST_ERROR;

            /* Create an uncopied object in destination file so that tokens in source and destination files
             * aren't the same */
            if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                TEST_ERROR;

            /* copy the group from SRC to DST */
            if (H5Ocopy(fid_src, NAME_GROUP_LINK, fid_dst, NAME_GROUP_LINK, plid, H5P_DEFAULT) < 0)
                TEST_ERROR;

            /* open the group for copy */
            if ((gid = H5Gopen2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT)) < 0)
                FAIL_STACK_ERROR;

            /* open the destination group */
            if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_LINK, H5P_DEFAULT)) < 0)
                FAIL_STACK_ERROR;

            /* If expand_soft is set to true, verify that the soft link is now a
             * hard link, and compare the expanded dataset, then delete it and
             * re-add it as a soft link so compare_groups() works */
            if (expand_soft) {
                /* Check link type */
                if (H5Lget_info2(fid_dst, NAME_LINK_SOFT, &linfo, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (linfo.type != H5L_TYPE_HARD)
                    FAIL_PUTS_ERROR("Soft link was not expanded to a hard link");

                /* Compare datasets */
                if ((did = H5Dopen2(fid_src, NAME_LINK_DATASET, H5P_DEFAULT)) < 0)
                    TEST_ERROR;
                if ((did2 = H5Dopen2(fid_dst, NAME_LINK_SOFT, H5P_DEFAULT)) < 0)
                    TEST_ERROR;
                if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
                    TEST_ERROR;

                /* Delete expanded dataset, add soft link */
                if (H5Ldelete(fid_dst, NAME_LINK_SOFT, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (H5Lcreate_soft(NAME_LINK_DATASET, fid_dst, NAME_LINK_SOFT, H5P_DEFAULT, H5P_DEFAULT) < 0)
                    TEST_ERROR;

                /* Close datasets */
                if (H5Dclose(did) < 0)
                    TEST_ERROR;
                if (H5Dclose(did2) < 0)
                    TEST_ERROR;
            } /* end if */

            /* If expand_ext is set to true, verify that the external link is
             * now a hard link, and compare the expanded dataset, then delete it
             * and re-add it as an external link so compare_groups() works */
            if (expand_ext) {
                /* Check link type */
                if (H5Lget_info2(fid_dst, NAME_LINK_EXTERN, &linfo, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (linfo.type != H5L_TYPE_HARD)
                    FAIL_PUTS_ERROR("External link was not expanded to a hard link");

                /* Compare datasets */
                if ((fid_ext = H5Fopen(ext_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
                    TEST_ERROR;
                if ((did = H5Dopen2(fid_ext, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
                    TEST_ERROR;
                if ((did2 = H5Dopen2(fid_dst, NAME_LINK_EXTERN, H5P_DEFAULT)) < 0)
                    TEST_ERROR;
                if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
                    TEST_ERROR;

                /* Delete expanded dataset, add external link */
                if (H5Ldelete(fid_dst, NAME_LINK_EXTERN, H5P_DEFAULT) < 0)
                    TEST_ERROR;
                if (H5Lcreate_external(ext_filename, NAME_DATASET_SIMPLE, fid_dst, NAME_LINK_EXTERN,
                                       H5P_DEFAULT, H5P_DEFAULT) < 0)
                    TEST_ERROR;

                /* Close datasets and external file */
                if (H5Dclose(did) < 0)
                    TEST_ERROR;
                if (H5Dclose(did2) < 0)
                    TEST_ERROR;
                if (H5Fclose(fid_ext) < 0)
                    TEST_ERROR;
            } /* end if */

            /* Check if the groups are equal */
            if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
                TEST_ERROR;

            /* close the destination group */
            if (H5Gclose(gid2) < 0)
                TEST_ERROR;

            /* close the source group */
            if (H5Gclose(gid) < 0)
                TEST_ERROR;

            /* Now try to copy the group containing the dangling link.  They
             * should always be copied as the same type of link, never expanded
             * to hard links. */
            if (H5Ocopy(fid_src, NAME_GROUP_LINK2, fid_dst, NAME_GROUP_LINK2, plid, H5P_DEFAULT) < 0)
                TEST_ERROR;

            /* Open the original and copied groups */
            if ((gid = H5Gopen2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT)) < 0)
                TEST_ERROR;
            if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_LINK2, H5P_DEFAULT)) < 0)
                TEST_ERROR;

            /* Compare the groups */
            if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
                TEST_ERROR;

            /* Close groups */
            if (H5Gclose(gid2) < 0)
                TEST_ERROR;
            if (H5Gclose(gid) < 0)
                TEST_ERROR;

            /* close the SRC file */
            if (H5Fclose(fid_src) < 0)
                TEST_ERROR;

            /* close the DST file */
            if (H5Fclose(fid_dst) < 0)
                TEST_ERROR;
        } /* end for */
    }     /* end for */

    /* Close the object copy plist */
    if (H5Pclose(plid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_ext);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
        H5Pclose(plid);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_group_links */

/*-------------------------------------------------------------------------
 * Function:    test_copy_soft_link
 *
 * Purpose:     Create a soft link in SRC file and copy it to DST file
 *              copy a datast pointed by a soft link to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_soft_link(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool test_open)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID;                                /* Group ID */
    hsize_t dim2d[2];
    int     buf[DIM_SIZE_1][DIM_SIZE_2];
    int     i, j;
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): opened object through soft link");
    }
    else {
        TESTING("H5Ocopy(): object through soft link");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the group */
    if ((did = H5Dcreate2(fid_src, NAME_LINK_DATASET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        FAIL_STACK_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        FAIL_STACK_ERROR;

    /* make a soft link to the dataset */
    if (H5Lcreate_soft(NAME_LINK_DATASET, fid_src, NAME_LINK_SOFT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        FAIL_STACK_ERROR;

    if (!test_open) {
        /* close the dataset */
        if (H5Dclose(did) < 0)
            FAIL_STACK_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            FAIL_STACK_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_LINK_SOFT, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset through the soft link for copy */
        if ((did = H5Dopen2(fid_src, NAME_LINK_SOFT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_soft_link */

/*-------------------------------------------------------------------------
 * Function:    test_copy_ext_link
 *
 * Purpose:     Create an external link in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_ext_link(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID, fid_ext = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                         /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID;                         /* Group ID */
    hsize_t dim2d[2];
    int     buf[DIM_SIZE_1][DIM_SIZE_2];
    int     i, j;
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];
    char    ext_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): object through external link");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, dst_filename, sizeof dst_filename);
    h5_fixname(FILENAME[2], dst_fapl, ext_filename, sizeof ext_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the group */
    if ((did = H5Dcreate2(fid_src, NAME_LINK_DATASET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;
    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* create file to hold external links to the src file */
    if ((fid_ext = H5Fcreate(ext_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group in the file that will hold the external link */
    if ((gid = H5Gcreate2(fid_ext, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create an external link to the dataset in the source file */
    if (H5Lcreate_external(src_filename, NAME_LINK_DATASET, fid_ext, NAME_LINK_EXTERN, H5P_DEFAULT,
                           H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* close the group and file */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_ext) < 0)
        TEST_ERROR;

    /* open the "extern" file with read-only */
    if ((fid_ext = H5Fopen(ext_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_ext, NAME_LINK_EXTERN, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset through the external link */
    if ((did = H5Dopen2(fid_ext, NAME_LINK_EXTERN, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the EXT file */
    if (H5Fclose(fid_ext) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Sclose(sid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_ext_link */

/*-------------------------------------------------------------------------
 * Function:    test_copy_exist
 *
 * Purpose:     Create a simple dataset in SRC file and copy it onto an
 *              existing object in DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_exist(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID;                                /* Dataset IDs */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    int     i, j;                                                 /* local index variables */
    herr_t  ret;                                                  /* Generic return value */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): existing object");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* try to copy the dataset from SRC to DST again (should fail) */
    H5E_BEGIN_TRY
    {
        ret = H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_exist */

/*-------------------------------------------------------------------------
 * Function:    test_copy_path
 *
 * Purpose:     Create a simple dataset in SRC file and copy it to DST file
 *              using a full path name
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_path(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID;                                /* Group ID */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    int     i, j;                                                 /* local index variables */
    herr_t  ret;                                                  /* Generic return value */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): full path");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create 2D int dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST (should fail - intermediate groups not there) */
    H5E_BEGIN_TRY
    {
        ret = H5Ocopy(fid_src, NAME_DATASET_SUB_SUB, fid_dst, NAME_DATASET_SUB_SUB, H5P_DEFAULT, H5P_DEFAULT);
    }
    H5E_END_TRY
    if (ret >= 0)
        TEST_ERROR;

    /* Create the intermediate groups in destination file */
    if ((gid = H5Gcreate2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    if ((gid = H5Gcreate2(fid_dst, NAME_GROUP_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    if ((gid = H5Gcreate2(fid_dst, NAME_GROUP_SUB_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST, using full path */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SUB_SUB, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SUB_SUB, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Sclose(sid);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_path */

/*-------------------------------------------------------------------------
 * Function:    test_copy_same_file_named_datatype
 *
 * Purpose:     Create name datatype in SRC file and copy it to same file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_same_file_named_datatype(hid_t fcpl_src, hid_t fapl)
{
    hid_t fid = H5I_INVALID_HID;                         /* File ID */
    hid_t tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID; /* Datatype IDs */
    char  filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): named datatype in same file");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], fapl, filename, sizeof filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid = H5Fcreate(filename, H5F_ACC_TRUNC, fcpl_src, fapl)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create named datatype */
    if ((H5Tcommit2(fid, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the datatype from SRC to DST */
    if (H5Ocopy(fid, NAME_DATATYPE_SIMPLE, fid, NAME_DATATYPE_SIMPLE2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied datatype */
    if ((tid2 = H5Topen2(fid, NAME_DATATYPE_SIMPLE2, H5P_DEFAULT)) < 0)
        FAIL_STACK_ERROR;

    /* Compare the datatypes */
    if (H5Tequal(tid, tid2) != true)
        TEST_ERROR;

    /* close the destination datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close the source datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the file */
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Fclose(fid);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_same_file_named_datatype */

/*-------------------------------------------------------------------------
 * Function:    test_copy_old_layout
 *
 * Purpose:     Copy dataset that uses the "old" layout version (pre version 3)
 *              format.
 *
 * Note:    This test uses the "fill_old.h5" file for convenience, since it
 *              has a dataset with the old layout format.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_old_layout(hid_t fcpl_dst, hid_t fapl, bool test_open)
{
    hid_t       fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID;   /* File IDs */
    hid_t       did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;          /* Dataset IDs */
    hid_t       src_fapl     = H5I_INVALID_HID;                         /* Source file FAPL ID */
    const char *src_filename = H5_get_srcdir_filename(FILE_OLD_LAYOUT); /* Corrected test file name */
    char        dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): opened dataset with old layout format");
    }
    else {
        TESTING("H5Ocopy(): dataset with old layout format");
    }

    /* Initialize the destination filename */
    h5_fixname(FILENAME[1], fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* Setup */
    if ((src_fapl = h5_fileaccess_flags(H5_FILEACCESS_LIBVER)) < 0)
        TEST_ERROR;

    /* open source file (read-only) */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Close source FAPL */
    if (H5Pclose(src_fapl) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (test_open) {
        /* open the source dataset */
        if ((did = H5Dopen2(fid_src, NAME_OLD_FORMAT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_OLD_FORMAT, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the source dataset */
        if ((did = H5Dopen2(fid_src, NAME_OLD_FORMAT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, NULL) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(src_fapl);
        H5Dclose(did2);
        H5Dclose(did);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_old_layout */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compact_named_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compact_named_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid_copy = H5I_INVALID_HID;    /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compact dataset with named VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* make a copy of the datatype for later use */
    if ((tid_copy = H5Tcopy(tid)) < 0)
        TEST_ERROR;

    /* named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid_copy, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid_copy, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid_copy) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid_copy, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid_copy);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compact_named_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_contig_named_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_contig_named_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid_copy = H5I_INVALID_HID;    /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): contiguous dataset with named VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* make a copy of the datatype for later use */
    if ((tid_copy = H5Tcopy(tid)) < 0)
        TEST_ERROR;

    /* named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid_copy, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid_copy, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid_copy) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid_copy, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid_copy);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_contig_named_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_named_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_named_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl,
                                   bool test_open)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid_copy = H5I_INVALID_HID;    /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): chunked and opened dataset with named VLEN datatype");
    }
    else {
        TESTING("H5Ocopy(): chunked dataset with named VLEN datatype");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* make a copy of the datatype for later use */
    if ((tid_copy = H5Tcopy(tid)) < 0)
        TEST_ERROR;

    /* named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    if (!test_open) {

        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid_copy, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid_copy, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid_copy) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid_copy, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid_copy);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_named_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compressed_named_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compressed_named_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid_copy = H5I_INVALID_HID;    /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compressed dataset with named VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].len = i + 1;
        buf[i].p   = (int *)malloc(buf[i].len * sizeof(int));
        for (j = 0; j < buf[i].len; j++)
            ((int *)buf[i].p)[j] = (int)(i * 10 + j);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* make a copy of the datatype for later use */
    if ((tid_copy = H5Tcopy(tid)) < 0)
        TEST_ERROR;

    /* named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_VL, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL, fid_dst, NAME_DATASET_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid_copy, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid_copy, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid_copy) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid_copy, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid_copy);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compressed_named_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compact_vl_vl
 *
 * Purpose:     Create a compact dataset w/nested VLEN datatype
 *              in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compact_vl_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j, k;                                              /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hvl_t       *tvl; /* Temporary pointer to VL information */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compact dataset with nested VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].p = malloc((i + 1) * sizeof(hvl_t));
        if (buf[i].p == NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n", i);
            return 1;
        } /* end if */
        buf[i].len = i + 1;
        for (tvl = (hvl_t *)buf[i].p, j = 0; j < (i + 1); j++, tvl++) {
            tvl->p = malloc((j + 1) * sizeof(unsigned int));
            if (tvl->p == NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n", i, j);
                return 1;
            } /* end if */
            tvl->len = j + 1;
            for (k = 0; k < (j + 1); k++)
                ((unsigned int *)tvl->p)[k] = i * 100 + j * 10 + k;
        } /* end for */
    }     /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create nested VL datatype */
    if ((tid2 = H5Tvlen_create(tid)) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL_VL, tid2, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL_VL, fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid2, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid2, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid2, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Pclose(pid);
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compact_vl_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_contig_vl_vl
 *
 * Purpose:     Create a compact dataset w/nested VLEN datatype
 *              in SRC file and copy it to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_contig_vl_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool test_open)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j, k;                                              /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hvl_t       *tvl; /* Temporary pointer to VL information */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): contiguous and opened dataset with nested VLEN datatype");
    }
    else {
        TESTING("H5Ocopy(): contiguous dataset with nested VLEN datatype");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].p = malloc((i + 1) * sizeof(hvl_t));
        if (buf[i].p == NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n", i);
            TEST_ERROR;
        } /* end if */
        buf[i].len = i + 1;
        for (tvl = (hvl_t *)buf[i].p, j = 0; j < (i + 1); j++, tvl++) {
            tvl->p = malloc((j + 1) * sizeof(unsigned int));
            if (tvl->p == NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n", i, j);
                TEST_ERROR;
            } /* end if */
            tvl->len = j + 1;
            for (k = 0; k < (j + 1); k++)
                ((unsigned int *)tvl->p)[k] = i * 100 + j * 10 + k;
        } /* end for */
    }     /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create nested VL datatype */
    if ((tid2 = H5Tvlen_create(tid)) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL_VL, tid2, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL_VL, fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid2, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid2, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid2, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Pclose(pid);
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_contig_vl_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_vl_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_vl_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j, k;                                              /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hvl_t       *tvl;                             /* Temporary pointer to VL information */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1}; /* Chunk dimensions */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): chunked dataset with nested VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].p = malloc((i + 1) * sizeof(hvl_t));
        if (buf[i].p == NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n", i);
            TEST_ERROR;
        } /* end if */
        buf[i].len = i + 1;
        for (tvl = (hvl_t *)buf[i].p, j = 0; j < (i + 1); j++, tvl++) {
            tvl->p = malloc((j + 1) * sizeof(unsigned int));
            if (tvl->p == NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n", i, j);
                TEST_ERROR;
            } /* end if */
            tvl->len = j + 1;
            for (k = 0; k < (j + 1); k++)
                ((unsigned int *)tvl->p)[k] = i * 100 + j * 10 + k;
        } /* end for */
    }     /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create nested VL datatype */
    if ((tid2 = H5Tvlen_create(tid)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL_VL, tid2, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Set allocation time to early */
    if (H5Pset_alloc_time(pid, H5D_ALLOC_TIME_EARLY) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL_VL2, tid2, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL_VL, fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_VL_VL2, fid_dst, NAME_DATASET_VL_VL2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_FARRAY, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_VL_VL2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL_VL2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    if (compare_idx_type(src_fapl, did2, H5D_CHUNK_IDX_NONE, H5D_CHUNK_IDX_BTREE) != true)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid2, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid2, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid2, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_vl_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compressed_vl_vl
 *
 * Purpose:     Create a dataset that uses a named variable length datatype
 *              in SRC file and copy it to DST file
 *
 *              Note: The parameter "test_open" is added to test for H5Ocopy when
 *                    the dataset is open in the file (HDFFV-7853).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compressed_vl_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl,
                                   bool test_open)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype ID */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j, k;                                              /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hvl_t        buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    hvl_t       *tvl;                             /* Temporary pointer to VL information */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1}; /* Chunk dimensions */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    if (test_open) {
        TESTING("H5Ocopy(): compressed and opened dataset with nested VLEN datatype");
    }
    else {
        TESTING("H5Ocopy(): compressed dataset with nested VLEN datatype");
    }

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].p = malloc((i + 1) * sizeof(hvl_t));
        if (buf[i].p == NULL) {
            TestErrPrintf("Cannot allocate memory for VL data! i=%u\n", i);
            TEST_ERROR;
        } /* end if */
        buf[i].len = i + 1;
        for (tvl = (hvl_t *)buf[i].p, j = 0; j < (i + 1); j++, tvl++) {
            tvl->p = malloc((j + 1) * sizeof(unsigned int));
            if (tvl->p == NULL) {
                TestErrPrintf("Cannot allocate memory for VL data! i=%u, j=%u\n", i, j);
                TEST_ERROR;
            } /* end if */
            tvl->len = j + 1;
            for (k = 0; k < (j + 1); k++)
                ((unsigned int *)tvl->p)[k] = i * 100 + j * 10 + k;
        } /* end for */
    }     /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create nested VL datatype */
    if ((tid2 = H5Tvlen_create(tid)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(pid, 9) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_VL_VL, tid2, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid2, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    if (!test_open) {

        /* close the dataset */
        if (H5Dclose(did) < 0)
            TEST_ERROR;

        /* close the SRC file */
        if (H5Fclose(fid_src) < 0)
            TEST_ERROR;

        /* open the source file with read-only */
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
            TEST_ERROR;
    }

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_VL_VL, fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (!test_open) {
        /* open the dataset for copy */
        if ((did = H5Dopen2(fid_src, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
            TEST_ERROR;
    }

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_VL_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid2, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid2, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid2, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid);
        H5Tclose(tid2);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compressed_vl_vl */

/*
 * Common data structure for the copy_dataset_*_cmpd_vl tests.
 */
typedef struct cmpd_vl_t {
    int    a;
    hvl_t  b;
    double c;
} cmpd_vl_t;

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_contig_cmpd_vl
 *
 * Purpose:     Create a contiguous dataset w/VLEN datatype contained in
 *              a compound in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_contig_cmpd_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid     = H5I_INVALID_HID;                            /* Datatype ID */
    hid_t        tid2    = H5I_INVALID_HID;                            /* Datatype ID */
    hid_t        sid     = H5I_INVALID_HID;                            /* Dataspace ID */
    hid_t        did     = H5I_INVALID_HID;                            /* Dataset ID */
    hid_t        did2    = H5I_INVALID_HID;                            /* Dataset ID */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    cmpd_vl_t    buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): contiguous dataset with compound VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].a     = (int)(i * (i - 1));
        buf[i].b.len = i + 1;
        buf[i].b.p   = (int *)malloc(buf[i].b.len * sizeof(int));
        for (j = 0; j < buf[i].b.len; j++)
            ((int *)buf[i].b.p)[j] = (int)(i * 10 + j);
        buf[i].c = 1.0 / ((double)i + 1.0);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid2 = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((tid = H5Tcreate(H5T_COMPOUND, sizeof(cmpd_vl_t))) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "a", HOFFSET(cmpd_vl_t, a), H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "b", HOFFSET(cmpd_vl_t, b), tid2) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "c", HOFFSET(cmpd_vl_t, c), H5T_NATIVE_DOUBLE) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CMPD_VL, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CMPD_VL, fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_contig_cmpd_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_chunked_cmpd_vl
 *
 * Purpose:     Create a chunked dataset w/VLEN datatype contained in a
 *              compound in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_chunked_cmpd_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    hsize_t      chunk_dim1d[1] = {CHUNK_SIZE_1};                      /* Chunk dimensions */
    cmpd_vl_t    buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): chunked dataset with compound VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].a     = (int)(i * (i - 1));
        buf[i].b.len = i + 1;
        buf[i].b.p   = (int *)malloc(buf[i].b.len * sizeof(int));
        for (j = 0; j < buf[i].b.len; j++)
            ((int *)buf[i].b.p)[j] = (int)(i * 10 + j);
        buf[i].c = 1.0 / ((double)i + 1.0);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid2 = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((tid = H5Tcreate(H5T_COMPOUND, sizeof(cmpd_vl_t))) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "a", HOFFSET(cmpd_vl_t, a), H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "b", HOFFSET(cmpd_vl_t, b), tid2) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "c", HOFFSET(cmpd_vl_t, c), H5T_NATIVE_DOUBLE) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 1, chunk_dim1d) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CMPD_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close chunk plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CMPD_VL, fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Pclose(pid);
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_chunked_cmpd_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_compact_cmpd_vl
 *
 * Purpose:     Create a compact dataset w/VLEN datatype contained in a
 *              compound in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_compact_cmpd_vl(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;        /* Datatype IDs */
    hid_t        sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t        pid = H5I_INVALID_HID;                                /* Dataset creation property list ID */
    hid_t        did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t        dxpl_id = H5I_INVALID_HID;                            /* Dataset transfer property list ID */
    unsigned int i, j;                                                 /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    cmpd_vl_t    buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): compact dataset with compound VLEN datatype");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++) {
        buf[i].a     = (int)(i * (i - 1));
        buf[i].b.len = i + 1;
        buf[i].b.p   = (int *)malloc(buf[i].b.len * sizeof(int));
        for (j = 0; j < buf[i].b.len; j++)
            ((int *)buf[i].b.p)[j] = (int)(i * 10 + j);
        buf[i].c = 1.0 / ((double)i + 1.0);
    } /* end for */

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid2 = H5Tvlen_create(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((tid = H5Tcreate(H5T_COMPOUND, sizeof(cmpd_vl_t))) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "a", HOFFSET(cmpd_vl_t, a), H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "b", HOFFSET(cmpd_vl_t, b), tid2) < 0)
        TEST_ERROR;
    if (H5Tinsert(tid, "c", HOFFSET(cmpd_vl_t, c), H5T_NATIVE_DOUBLE) < 0)
        TEST_ERROR;

    /* create and set compact plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_layout(pid, H5D_COMPACT) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_CMPD_VL, tid, sid, H5P_DEFAULT, pid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close compact plist */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy the dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_CMPD_VL, fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the dataset for copy */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open the destination dataset */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_CMPD_VL, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the destination dataset */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the source dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Reclaim vlen buffer */
    if (H5Tdetect_class(tid, H5T_VLEN) == true) {
        if ((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0)
            TEST_ERROR;
        if (H5Pset_vlen_mem_manager(dxpl_id, NULL, NULL, NULL, NULL) < 0)
            TEST_ERROR;
        if (H5Treclaim(tid, sid, dxpl_id, buf) < 0)
            TEST_ERROR;
        if (H5Pclose(dxpl_id) < 0)
            TEST_ERROR;
    } /* end if */

    /* close datatype */
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did2);
        H5Dclose(did);
        H5Treclaim(tid, sid, H5P_DEFAULT, buf);
        H5Pclose(dxpl_id);
        H5Pclose(pid);
        H5Tclose(tid2);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_compact_cmpd_vl */

/*-------------------------------------------------------------------------
 * Function:    test_copy_null_ref
 *
 * Purpose:     Creates 2 datasets with references, one with object and
 *              the other with region references.  Copies these datasets
 *              to a new file without expanding references, causing them
 *              to become NULL.  Next, copies these references to a third
 *              file with expanding references, to verify that NULL
 *              references are handled correctly.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_null_ref(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t           fid1 = H5I_INVALID_HID, fid2 = H5I_INVALID_HID; /* File IDs */
    hid_t           sid  = H5I_INVALID_HID;                         /* Dataspace ID */
    hid_t           pid  = H5I_INVALID_HID;                         /* Object copy property list ID */
    hid_t           did1 = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    hsize_t         dim1d[1] = {2};                                 /* Dataset dimensions */
    hobj_ref_t      obj_buf[2];                                     /* Buffer for object refs */
    hdset_reg_ref_t reg_buf[2];                                     /* Buffer for region refs */
    char            zeros[MAX(sizeof(obj_buf), sizeof(reg_buf))];   /* Array of zeros, for memcmp */
    char            src_filename[NAME_BUF_SIZE];
    char            mid_filename[NAME_BUF_SIZE];
    char            dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): NULL references");

    /* Initialize "zeros" array */
    memset(zeros, 0, sizeof(zeros));

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, mid_filename, sizeof mid_filename);
    h5_fixname(FILENAME[2], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* Create source file */
    if ((fid1 = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* Create object reference dataset at SRC file */
    if ((did1 = H5Dcreate2(fid1, "obj_ref_dset", H5T_STD_REF_OBJ, sid, H5P_DEFAULT, H5P_DEFAULT,
                           H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create region reference dataset at SRC file */
    if ((did2 = H5Dcreate2(fid1, "reg_ref_dset", H5T_STD_REF_DSETREG, sid, H5P_DEFAULT, H5P_DEFAULT,
                           H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create references */
    if (H5Rcreate(&obj_buf[0], did1, ".", H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if (H5Rcreate(&obj_buf[1], did2, ".", H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if (H5Rcreate(&reg_buf[0], did1, ".", H5R_DATASET_REGION, sid) < 0)
        TEST_ERROR;
    if (H5Rcreate(&reg_buf[1], did2, ".", H5R_DATASET_REGION, sid) < 0)
        TEST_ERROR;

    /* Write data into file */
    if (H5Dwrite(did1, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Close datasets */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* Create middle file */
    if ((fid2 = H5Fcreate(mid_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Copy the source file to the middle file.  Note the expand references
     * flag is not set. */
    if (H5Ocopy(fid1, "/", fid2, "/A", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Close source file */
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;

    /* Open copied datasets */
    if ((did1 = H5Dopen2(fid2, "/A/obj_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dopen2(fid2, "/A/reg_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Read copied datasets */
    if (H5Dread(did1, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dread(did2, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Verify that the references contain only "0" bytes */
    if (memcmp(obj_buf, zeros, sizeof(obj_buf)) != 0)
        TEST_ERROR;
    if (memcmp(reg_buf, zeros, sizeof(reg_buf)) != 0)
        TEST_ERROR;

    /* Close datasets */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* Create destination file */
    if ((fid1 = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create object copy property list */
    if ((pid = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;

    /* Set the "expand references" flag */
    if (H5Pset_copy_object(pid, H5O_COPY_EXPAND_REFERENCE_FLAG) < 0)
        TEST_ERROR;

    /* Copy the middle file to the destination file.  Note the expand references
     * flag *is* set, even though the references are now NULL. */
    if (H5Ocopy(fid2, "/", fid1, "/AA", pid, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Close source file */
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    /* Open copied datasets */
    if ((did1 = H5Dopen2(fid1, "/AA/A/obj_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dopen2(fid1, "/AA/A/reg_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Read copied datasets */
    if (H5Dread(did1, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dread(did2, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Verify that the references contain only "0" bytes */
    if (memcmp(obj_buf, zeros, sizeof(obj_buf)) != 0)
        TEST_ERROR;
    if (memcmp(reg_buf, zeros, sizeof(reg_buf)) != 0)
        TEST_ERROR;

    /* Close */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Dclose(did1);
        H5Dclose(did2);
        H5Fclose(fid1);
        H5Fclose(fid2);
        H5Sclose(sid);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_null_ref */

/*-------------------------------------------------------------------------
 * Function:    test_copy_null_ref_open
 *
 * Purpose:     Creates 2 datasets with references, one with object and
 *              the other with region references.  Copies these datasets
 *              to a new file without expanding references, causing them
 *              to become NULL.  Next, copies these references to a third
 *              file with expanding references, to verify that NULL
 *              references are handled correctly.
 *
 *              Note: this is copied from test_copy_null_ref() with modifications
 *              to test for opened datasets in the files.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_null_ref_open(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t           fid1 = H5I_INVALID_HID, fid2 = H5I_INVALID_HID, fid3 = H5I_INVALID_HID; /* File IDs */
    hid_t           sid  = H5I_INVALID_HID;                                                 /* Dataspace ID */
    hid_t           pid  = H5I_INVALID_HID;                         /* Object copy property list ID */
    hid_t           did1 = H5I_INVALID_HID, did2 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t           did3 = H5I_INVALID_HID, did4 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t           did5 = H5I_INVALID_HID, did6 = H5I_INVALID_HID; /* Dataset IDs */
    hid_t           dcpl           = H5I_INVALID_HID;               /* Dataset creation property list */
    hsize_t         chunk_dim1d[1] = {2};                           /* Chunk dimensions */
    hsize_t         dim1d[1]       = {3};                           /* Dataset dimensions */
    hobj_ref_t      obj_buf[3];                                     /* Buffer for object refs */
    hdset_reg_ref_t reg_buf[3];                                     /* Buffer for region refs */
    char            zeros[MAX(sizeof(obj_buf), sizeof(reg_buf))];   /* Array of zeros, for memcmp */
    char            src_filename[NAME_BUF_SIZE];
    char            mid_filename[NAME_BUF_SIZE];
    char            dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): NULL references for opened datasets");

    /* Initialize "zeros" array */
    memset(zeros, 0, sizeof(zeros));

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, mid_filename, sizeof mid_filename);
    h5_fixname(FILENAME[2], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* Create source file */
    if ((fid1 = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((dcpl = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(dcpl, 1, chunk_dim1d) < 0)
        TEST_ERROR;
    if (H5Pset_deflate(dcpl, 9) < 0)
        TEST_ERROR;
    if (H5Pset_chunk_opts(dcpl, H5D_CHUNK_DONT_FILTER_PARTIAL_CHUNKS) < 0)
        TEST_ERROR;

    /* Create object reference dataset at SRC file */
    if ((did1 = H5Dcreate2(fid1, "obj_ref_dset", H5T_STD_REF_OBJ, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create region reference dataset at SRC file */
    if ((did2 = H5Dcreate2(fid1, "reg_ref_dset", H5T_STD_REF_DSETREG, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* Create references */
    if (H5Rcreate(&obj_buf[0], did1, ".", H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if (H5Rcreate(&obj_buf[1], did2, ".", H5R_OBJECT, (hid_t)-1) < 0)
        TEST_ERROR;
    if (H5Rcreate(&reg_buf[0], did1, ".", H5R_DATASET_REGION, sid) < 0)
        TEST_ERROR;
    if (H5Rcreate(&reg_buf[1], did2, ".", H5R_DATASET_REGION, sid) < 0)
        TEST_ERROR;

    /* Write data into file */
    if (H5Dwrite(did1, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Create middle file */
    if ((fid2 = H5Fcreate(mid_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Copy the source file to the middle file.  Note the expand references
     * flag is not set. */
    if (H5Ocopy(fid1, "/", fid2, "/A", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Close datasets in source file */
    if (H5Dclose(did1) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* Close source file */
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;

    /* Open copied datasets */
    if ((did3 = H5Dopen2(fid2, "/A/obj_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did4 = H5Dopen2(fid2, "/A/reg_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Read copied datasets */
    if (H5Dread(did3, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dread(did4, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Verify that the references contain only "0" bytes */
    if (memcmp(obj_buf, zeros, sizeof(obj_buf)) != 0)
        TEST_ERROR;
    if (memcmp(reg_buf, zeros, sizeof(reg_buf)) != 0)
        TEST_ERROR;

    /* Create destination file */
    if ((fid3 = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create object copy property list */
    if ((pid = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;

    /* Set the "expand references" flag */
    if (H5Pset_copy_object(pid, H5O_COPY_EXPAND_REFERENCE_FLAG) < 0)
        TEST_ERROR;

    /* Copy the middle file to the destination file.  Note the expand references
     * flag *is* set, even though the references are now NULL. */
    if (H5Ocopy(fid2, "/", fid3, "/AA", pid, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Close datasets in middle file */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Dclose(did4) < 0)
        TEST_ERROR;

    /* Close the middle file */
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    /* Open copied datasets */
    if ((did5 = H5Dopen2(fid3, "/AA/A/obj_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did6 = H5Dopen2(fid3, "/AA/A/reg_ref_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Read copied datasets */
    if (H5Dread(did5, H5T_STD_REF_OBJ, H5S_ALL, H5S_ALL, H5P_DEFAULT, obj_buf) < 0)
        TEST_ERROR;
    if (H5Dread(did6, H5T_STD_REF_DSETREG, H5S_ALL, H5S_ALL, H5P_DEFAULT, reg_buf) < 0)
        TEST_ERROR;

    /* Verify that the references contain only "0" bytes */
    if (memcmp(obj_buf, zeros, sizeof(obj_buf)) != 0)
        TEST_ERROR;
    if (memcmp(reg_buf, zeros, sizeof(reg_buf)) != 0)
        TEST_ERROR;

    /* Close */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;
    if (H5Pclose(dcpl) < 0)
        TEST_ERROR;
    if (H5Dclose(did5) < 0)
        TEST_ERROR;
    if (H5Dclose(did6) < 0)
        TEST_ERROR;
    if (H5Fclose(fid3) < 0)
        TEST_ERROR;
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(pid);
        H5Pclose(dcpl);
        H5Sclose(sid);
        H5Dclose(did1);
        H5Dclose(did2);
        H5Dclose(did3);
        H5Dclose(did4);
        H5Dclose(did5);
        H5Dclose(did6);
        H5Fclose(fid1);
        H5Fclose(fid2);
        H5Fclose(fid3);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_null_ref_open */

/*-------------------------------------------------------------------------
 * Function:    test_copy_attr_crt_order
 *
 * Purpose:     Tests copying attributes with creation order tracked, with
 *              and without creation order being indexed.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_attr_crt_order(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid1 = H5I_INVALID_HID, fid2 = H5I_INVALID_HID; /* File IDs */
    hid_t gcplid = H5I_INVALID_HID;                       /* Group creation property list ID */
    hid_t gid1 = H5I_INVALID_HID, gid2 = H5I_INVALID_HID; /* Group IDs */
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): attributes with creation order");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* Create source file */
    if ((fid1 = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create GCPL */
    if ((gcplid = H5Pcreate(H5P_GROUP_CREATE)) < 0)
        TEST_ERROR;

    /* Create group with creation order tracked */
    if (H5Pset_attr_creation_order(gcplid, H5P_CRT_ORDER_TRACKED) < 0)
        TEST_ERROR;
    if ((gid1 = H5Gcreate2(fid1, NAME_GROUP_TOP, H5P_DEFAULT, gcplid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Add attributes to group */
    if (test_copy_attach_attributes(gid1, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Close group */
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;

    /* Create group with creation order tracked and indexed */
    if (H5Pset_attr_creation_order(gcplid, H5P_CRT_ORDER_TRACKED | H5P_CRT_ORDER_INDEXED) < 0)
        TEST_ERROR;
    if ((gid1 = H5Gcreate2(fid1, NAME_GROUP_TOP2, H5P_DEFAULT, gcplid, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Add attributes to group */
    if (test_copy_attach_attributes(gid1, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Close group */
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;

    /* Close GCPL */
    if (H5Pclose(gcplid) < 0)
        TEST_ERROR;

    /* Create destination file */
    if ((fid2 = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Copy the groups to the destination file */
    if (H5Ocopy(fid1, NAME_GROUP_TOP, fid2, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid1, NAME_GROUP_TOP2, fid2, NAME_GROUP_TOP2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Open groups with creation order tracked */
    if ((gid1 = H5Gopen2(fid1, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid2 = H5Gopen2(fid2, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Compare the attributes */
    if (compare_std_attributes(gid1, gid2, H5P_DEFAULT) != true)
        TEST_ERROR;

    /* Close groups */
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* Open groups with creation order tracked and indexed */
    if ((gid1 = H5Gopen2(fid1, NAME_GROUP_TOP2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((gid2 = H5Gopen2(fid2, NAME_GROUP_TOP2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Compare the attributes */
    if (compare_std_attributes(gid1, gid2, H5P_DEFAULT) != true)
        TEST_ERROR;

    /* Close groups */
    if (H5Gclose(gid1) < 0)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* Close */
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid1);
        H5Gclose(gid2);
        H5Pclose(gcplid);
        H5Fclose(fid1);
        H5Fclose(fid2);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_attr_crt_order */

/*-------------------------------------------------------------------------
 * Function:    test_copy_committed_datatype_merge
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_committed_datatype_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl,
                                   bool reopen)
{
    hid_t fid_src1 = H5I_INVALID_HID, fid_src2 = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t tid       = H5I_INVALID_HID;                                                       /* Datatype ID */
    hid_t sid       = H5I_INVALID_HID; /* Dataspace ID */
    hid_t did       = H5I_INVALID_HID; /* Dataset ID */
    hid_t ocpypl_id = H5I_INVALID_HID; /* Object copy plist ID */
    unsigned int i;                    /* Local index variables */
    hsize_t      dim1d[1];             /* Dataset dimensions */
    int          buf[DIM_SIZE_1];      /* Buffer for writing data */
    H5O_info2_t  oinfo;                /* Object info */
    H5O_token_t  exp_token;            /* Expected object token */
    char         src1_filename[NAME_BUF_SIZE];
    char         src2_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];
    int          token_cmp;

    if (reopen) {
        TESTING("H5Ocopy(): merging committed datatypes with reopen");
    } /* end if */
    else
        TESTING("H5Ocopy(): merging committed datatypes");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src1_filename, sizeof src1_filename);
    h5_fixname(FILENAME[3], src_fapl, src2_filename, sizeof src2_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source files */
    if ((fid_src1 = H5Fcreate(src1_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;
    if ((fid_src2 = H5Fcreate(src2_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate source file 1
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid_src1, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src1, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file 1 */
    if (H5Fclose(fid_src1) < 0)
        TEST_ERROR;

    /*
     * Populate source file 2
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid_src2, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src2, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file 1 */
    if (H5Fclose(fid_src2) < 0)
        TEST_ERROR;

    /* open the source files with read-only */
    if ((fid_src1 = H5Fopen(src1_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;
    if ((fid_src2 = H5Fopen(src2_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge named dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * First copy each entire file to the destination file (each with their own
     * group), and verify the committed datatypes are merged
     */
    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy SRC1 to DST */
    if (H5Ocopy(fid_src1, "/", fid_dst, NAME_GROUP_TOP, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy SRC2 to DST */
    if (H5Ocopy(fid_src2, "/", fid_dst, NAME_GROUP_TOP2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open SRC1 committed dtype, get token */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open SRC1 dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open SRC2 committed dtype, check token */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open SRC2 dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Now copy only the datasets to the destination file, and verify the committed
     * datatypes are merged
     */
    /* recreate destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* copy SRC1 to DST */
    if (H5Ocopy(fid_src1, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy SRC2 to DST */
    if (H5Ocopy(fid_src2, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open SRC1 dset dtype, get token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open SRC2 dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC files */
    if (H5Fclose(fid_src1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_src2) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src1);
        H5Fclose(fid_src2);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_committed_datatype_merge */

/*-------------------------------------------------------------------------
 * Function:    test_copy_committed_datatype_merge_same_file
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy,
 *              while copying to the same file.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_committed_datatype_merge_same_file(hid_t fcpl, hid_t fapl, bool reopen)
{
    hid_t        fid       = H5I_INVALID_HID; /* File ID */
    hid_t        tid       = H5I_INVALID_HID; /* Datatype ID */
    hid_t        sid       = H5I_INVALID_HID; /* Dataspace ID */
    hid_t        did       = H5I_INVALID_HID; /* Dataset ID */
    hid_t        gid       = H5I_INVALID_HID; /* Group ID */
    hid_t        ocpypl_id = H5I_INVALID_HID; /* Object copy plist ID */
    unsigned int i;                           /* Local index variables */
    hsize_t      dim1d[1];                    /* Dataset dimensions */
    int          buf[DIM_SIZE_1];             /* Buffer for writing data */
    H5O_info2_t  oinfo;                       /* Object info */
    H5O_token_t  exp_token;                   /* Expected object token */
    char         filename[NAME_BUF_SIZE];
    int          token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging committed datatypes to the source file with reopen");
    else
        TESTING("H5Ocopy(): merging committed datatypes to the source file");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filename */
    h5_fixname(FILENAME[0], fapl, filename, sizeof filename);

    /* Reset file token checking info */
    token_reset();

    /* create file */
    if ((fid = H5Fcreate(filename, H5F_ACC_TRUNC, fcpl, fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate first group
     */
    /* Create group */
    if ((gid = H5Gcreate2(fid, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid, NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT,
                    H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /*
     * Populate second group
     */
    /* Create group */
    if ((gid = H5Gcreate2(fid, NAME_GROUP_TOP2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid, NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT,
                    H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * First copy each group to the destination group 3 (each with their own
     * group), and verify the committed datatypes are merged as expected.  All
     * datatypes copied should reference (share a token with) the
     * corresponding source datatype.
     */
    /* Create destination group */
    if ((gid = H5Gcreate2(fid, NAME_GROUP_TOP3, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* copy group 1 to DST */
    if (H5Ocopy(fid, NAME_GROUP_TOP, fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy group 2 to DST */
    if (H5Ocopy(fid, NAME_GROUP_TOP2, fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid) < 0)
            TEST_ERROR;
        if ((fid = H5Fopen(filename, H5F_ACC_RDWR, fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open group 1 source committed dtype, get token */
    if ((tid = H5Topen2(fid, NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open group 1 source dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 1 committed dtype, check token */
    if ((tid = H5Topen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open group 1 dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 2 source committed dtype, get token and make sure it is
     * different from group 1 source committed dtype */
    if ((tid = H5Topen2(fid, NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open group 2 source dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 2 committed dtype, check token */
    if ((tid = H5Topen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP2 "/" NAME_DATATYPE_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open group 2 dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP3 "/" NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Now copy only the datasets to the destination group, and verify the committed
     * datatypes are merged as expected
     */
    /* Create destination group */
    if ((gid = H5Gcreate2(fid, NAME_GROUP_TOP4, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* copy SRC1 to DST */
    if (H5Ocopy(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE,
                ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy SRC2 to DST */
    if (H5Ocopy(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE2,
                ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid) < 0)
            TEST_ERROR;
        if ((fid = H5Fopen(filename, H5F_ACC_RDONLY, fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open group 1 source dset dtype, get token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 1 dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 2 source dset dtype, get token and make sure it is
     * different from group 1 source dset dtype */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP2 "/" NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open group 2 dset dtype, check token */
    if ((did = H5Dopen2(fid, NAME_GROUP_TOP4 "/" NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close file */
    if (H5Fclose(fid) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_committed_datatype_merge_same_file */

/*-------------------------------------------------------------------------
 * Function:    test_copy_committed_dt_merge_sugg
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy, and
 *              uses the suggestion list feature
 *              (H5Padd_merge_committed_dtype_path).
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_committed_dt_merge_sugg(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t        sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t        did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t        ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    unsigned int i;                                                    /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    int          buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    H5O_info2_t  oinfo;                                                /* Object info */
    H5O_token_t  exp_token;                                            /* Expected object token */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];
    int          token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging committed datatypes with suggestions and reopen");
    else
        TESTING("H5Ocopy(): merging committed datatypes with suggestions");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate source file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "a" */
    if ((H5Tcommit2(fid_dst, "/a", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "b" */
    if ((H5Tcommit2(fid_dst, "/b", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * First copy dataset using "/b" as a suggestion, and verify that it uses
     * datatype "b" in the destination file
     */
    /* Add datatype suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/b") < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "b", get token */
    if ((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Now free suggestions, copy dataset without any suggestions, and verify
     * that it uses datatype "a" in the destination file
     */
    /* Free suggestions */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Delete destination dataset */

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "a", get token */
    if ((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open dset 2 dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open committed dtype "b", get token */
    if ((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_committed_dt_merge_sugg */

/*-------------------------------------------------------------------------
 * Function:    test_copy_committed_dt_merge_attr
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy, with
 *              an attribute using an anonymous committed type in the
 *              destination.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_committed_dt_merge_attr(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t        sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t        did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t        aid       = H5I_INVALID_HID;                          /* Attribute ID */
    hid_t        gid       = H5I_INVALID_HID;                          /* Group ID */
    hid_t        ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    unsigned int i;                                                    /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    int          buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    H5O_info2_t  oinfo;                                                /* Object info */
    H5O_token_t  exp_token;                                            /* Expected object token */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];
    int          token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging committed datatypes with attributes and reopen");
    else
        TESTING("H5Ocopy(): merging committed datatypes with attributes");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate source file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    /* Create group */
    if ((gid = H5Gcreate2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* create anonymous committed datatype */
    if ((H5Tcommit_anon(fid_dst, tid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create attribute at SRC file */
    if ((aid = H5Acreate2(gid, "attr", tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Awrite(aid, tid, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * Copy dataset and verify that it uses the same committed datatype as the
     * already existing attribute in the destination file.
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open attribute dtype, get token */
    if ((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_TOP, "attr", H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* Open dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Aclose(aid);
        H5Gclose(gid);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_committed_dt_merge_attr */

/*
 * Defines used for the committed datatype tests
 */
#define SRC_ROOT_GROUP  "src_root"
#define ROOT_NDT_INT    "root_ndt_int"
#define GROUP_NDT_SHORT "group_ndt_short"

#define SRC_GRP  "src_grp"
#define DST_GRP  "dst_grp"
#define DST_GRP2 "dst_grp2"

#define SRC_NDT_SHORT  "src_ndt_short"
#define SRC_NDT_INT    "src_ndt_int"
#define SRC_NDT_INT2   "src_ndt_int2"
#define SRC_NDT_FLOAT  "src_ndt_float"
#define SRC_NDT_DOUBLE "src_ndt_double"

#define DST_NDT_SHORT  "dst_ndt_short"
#define DST_NDT_INT    "dst_ndt_int"
#define DST_NDT_FLOAT  "dst_ndt_float"
#define DST_NDT_DOUBLE "dst_ndt_double"

#define SRC_NDT_DSET  "src_ndt_dset"
#define SRC_NDT_DSET2 "src_ndt_dset2"
#define SRC_NDT_DSET3 "src_ndt_dset3"

#define SRC_DSET  "src_dset"
#define SRC_DSET1 "src_dset1"

#define SRC_ATTR "src_attr"

#define DST_ATTR_ANON_SHORT "dst_attr_anon_short"
#define DST_ATTR_ANON_INT   "dst_attr_anon_int"

#define DST_ATTR  "dst_attr"
#define DST_ATTR2 "dst_attr2"

/*-------------------------------------------------------------------------
 * Function:    test_copy_cdt_hier_merge
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy:
 *        SRC file:
 *          Create committed datatypes at / and /g0
 *          Create datasets with native type and committed datatypes at /g0
 *        DST file:
 *          Create attributes with anonymous committed datatypes at /uncopied
 *
 *        Copy / at SRC to DST
 *        Copy /g0 at SRC to DST
 *        Copy the datasets in /g0 at SRC to DST /uncopied
 *        Verify that committed datatypes are copied and merged correctly
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_cdt_hier_merge(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t       fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t       tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t       sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t       did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t       gid       = H5I_INVALID_HID;                          /* Group IDs */
    hid_t       f_tid     = H5I_INVALID_HID;                          /* Datatype ID for root group */
    hid_t       g_tid     = H5I_INVALID_HID;                          /* Datatype ID for group */
    hid_t       anon_tid  = H5I_INVALID_HID;                          /* Anonymous datatype */
    hid_t       aid       = H5I_INVALID_HID;                          /* Attribute ID */
    hid_t       ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    int         i;                                                    /* Local index variable */
    hsize_t     dim1d[1];                                             /* dimension sizes */
    int         buf[DIM_SIZE_1];                                      /* Buffer for data */
    H5O_token_t exp_token_int, exp_token_short;                       /* Expected object tokenes */
    H5O_info2_t oinfo;                                                /* Object info */
    char        src_filename[NAME_BUF_SIZE];                          /* Source file name */
    char        dst_filename[NAME_BUF_SIZE];                          /* Destination file name */
    int         token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): hier. of committed datatypes and merging with reopen");
    else
        TESTING("H5Ocopy(): hier. of committed datatypes and merging ");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /*
     * Populate source file
     */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create and commit committed datatype (int) to root group */
    if ((f_tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, ROOT_NDT_INT, f_tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create group /g0 */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create and commit committed datatype (short) to group /g0 */
    if ((g_tid = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, GROUP_NDT_SHORT, g_tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create dataset of native int in /g0 */
    if ((did = H5Dcreate2(gid, SRC_DSET1, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create dataset of committed datatype (short) in /g0 */
    if ((did = H5Dcreate2(gid, SRC_NDT_DSET2, g_tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create dataset of committed datatype (int) in /g0 */
    if ((did = H5Dcreate2(gid, SRC_NDT_DSET3, f_tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the datatypes */
    if (H5Tclose(f_tid) < 0)
        TEST_ERROR;
    if (H5Tclose(g_tid) < 0)
        TEST_ERROR;

    /* close group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* create group /uncopied */
    if ((gid = H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create and commit anonymous datatype (short) to /uncopied */
    if ((anon_tid = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit_anon(gid, anon_tid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create attribute of anon ndt (short) in /uncopied */
    if ((aid = H5Acreate2(gid, DST_ATTR_ANON_SHORT, anon_tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(anon_tid) < 0)
        TEST_ERROR;

    /* create and commit anonymous datatype (int) to /uncopied */
    if ((anon_tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit_anon(gid, anon_tid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create attribute of anon ndt (int) in /uncopied */
    if ((aid = H5Acreate2(gid, DST_ATTR_ANON_INT, anon_tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the attribute */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(anon_tid) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    if (reopen) {
        /* reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
            TEST_ERROR;
    }

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create ocpl and set merge committed datatype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * Test 1 : copy / in SRC file to DST file
     */
    if (H5Ocopy(fid_src, "/", fid_dst, SRC_ROOT_GROUP, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* get token of committed datatype at root group */
    if ((tid = H5Topen2(fid_dst, SRC_ROOT_GROUP "/" ROOT_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token_int, &oinfo.token, sizeof(exp_token_int));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype at /g0 */
    if ((tid = H5Topen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" GROUP_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token_short, &oinfo.token, sizeof(exp_token_short));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* verify the datatype of first dataset is not committed */
    if ((did = H5Dopen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" SRC_DSET1, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Tcommitted(tid))
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for second dataset */
    if ((did = H5Dopen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_short, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for third dataset */
    if ((did = H5Dopen2(fid_dst, SRC_ROOT_GROUP NAME_GROUP_TOP "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_int, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Test 2: copy /g0 in SRC to DST
     */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* get token of committed datatype at /g0 */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_TOP "/" GROUP_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_short, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* verify the datatype of first dataset is not committed */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" SRC_DSET1, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Tcommitted(tid))
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for second dataset */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_short, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for third dataset */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_TOP "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_int, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /*
     * Test 3: copy datasets in /g0 at SRC to DST group /uncopied
     */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP "/" SRC_DSET1, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_DSET1, ocpypl_id,
                H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_GROUP_TOP "/" SRC_NDT_DSET2, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2,
                ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_GROUP_TOP "/" SRC_NDT_DSET3, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET3,
                ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Open attribute with anon ndt (short), get token */
    if ((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_UNCOPIED, DST_ATTR_ANON_SHORT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_short, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* Open attribute with anon ndt (int), get token */
    if ((aid = H5Aopen_by_name(fid_dst, NAME_GROUP_UNCOPIED, DST_ATTR_ANON_INT, H5P_DEFAULT, H5P_DEFAULT)) <
        0)
        TEST_ERROR;
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_int, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* verify the datatype of first dataset is not committed */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_DSET1, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Tcommitted(tid))
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for second dataset */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_short, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for third dataset */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token_int, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(tid);
        H5Tclose(f_tid);
        H5Tclose(g_tid);
        H5Tclose(anon_tid);
        H5Pclose(ocpypl_id);
        H5Aclose(aid);
        H5Dclose(did);
        H5Sclose(sid);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_cdt_hier_merge */

/*-------------------------------------------------------------------------
 * Function:    test_copy_cdt_merge_cdt
 *
 * Purpose:     Tests the "merge committed datatypes" feature of H5Ocopy:
 *        SRC file:
 *            Create committed datatype (short)
 *            Create committed datatype (float)
 *            Create committed datatype (int), with attribute of ndt int
 *            Create committed datatype (double), with attribute of anon ndt short
 *        DST file:
 *            Create committed datatype (int)
 *            Create committed datatype (float), with attribute of native int
 *            Create committed datatype (double), with attribute of anon ndt short
 *
 *        Copy / at SRC to DST
 *        Verify that committed datatypes are copied and merged correctly
 *
 *        NOTE:
 *          Comparison of attributes are not implemented yet.
 *          Further tests will be added in the future.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_cdt_merge_cdt(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t       fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t       tid1 = H5I_INVALID_HID, tid2 = H5I_INVALID_HID;       /* Datatype IDs */
    hid_t       tid3 = H5I_INVALID_HID, tid4 = H5I_INVALID_HID;       /* Datatype IDs */
    hid_t       tid5 = H5I_INVALID_HID, tid = H5I_INVALID_HID;        /* Datatype IDs */
    hid_t       sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t       aid       = H5I_INVALID_HID;                          /* Attribute ID */
    hid_t       ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    hsize_t     dim1d[1];                                             /* dimension sizes */
    H5O_info2_t oinfo;                                                /* Object info */
    H5O_token_t exp_token;                                            /* Expected object token */
    char        src_filename[NAME_BUF_SIZE];                          /* Source file name */
    char        dst_filename[NAME_BUF_SIZE];                          /* Destination file name */
    int         token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging various committed datatypes with reopen");
    else
        TESTING("H5Ocopy(): merging various committed datatypes");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /*
     * Populate source file
     */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype (short) */
    if ((tid1 = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_SHORT, tid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create committed datatype (float) */
    if ((tid2 = H5Tcopy(H5T_NATIVE_FLOAT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_FLOAT, tid2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create committed datatype (int) */
    if ((tid3 = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_INT, tid3, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create an attribute of committed datatype (int); attach to committed datatype (int) */
    if ((aid = H5Acreate2(tid3, SRC_ATTR, tid3, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* create committed datatype (double) */
    if ((tid4 = H5Tcopy(H5T_NATIVE_DOUBLE)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_DOUBLE, tid4, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an anonymous committed datatype (short) */
    if ((tid5 = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit_anon(fid_src, tid5, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute of anon ndt (short); attach to committed datatype (double) */
    if ((aid = H5Acreate2(tid4, SRC_ATTR, tid5, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the committed datatypes */
    if (H5Tclose(tid1) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid3) < 0)
        TEST_ERROR;
    if (H5Tclose(tid4) < 0)
        TEST_ERROR;
    if (H5Tclose(tid5) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype (integer) */
    if ((tid1 = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_INT, tid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create committed datatype (float) */
    if ((tid2 = H5Tcopy(H5T_NATIVE_FLOAT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_FLOAT, tid2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute of native integer; attach to committed datatype (float) */
    if ((aid = H5Acreate2(tid2, DST_ATTR, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* create committed datatype (double) */
    if ((tid3 = H5Tcopy(H5T_NATIVE_DOUBLE)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_DOUBLE, tid3, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create anonymous committed datatype (short) */
    if ((tid4 = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit_anon(fid_dst, tid4, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute of anon ndt (short); attach to ndt (double) */
    if ((aid = H5Acreate2(tid3, DST_ATTR, tid4, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the committed datatypes */
    if (H5Tclose(tid1) < 0)
        TEST_ERROR;
    if (H5Tclose(tid2) < 0)
        TEST_ERROR;
    if (H5Tclose(tid3) < 0)
        TEST_ERROR;
    if (H5Tclose(tid4) < 0)
        TEST_ERROR;

    /* close the dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /* copy everything in SRC to DST */
    if (H5Ocopy(fid_src, "/", fid_dst, SRC_ROOT_GROUP, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /*
     * Verification
     */
    /* get token of committed datatype: /src_root/src_ndt_double */
    if ((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_DOUBLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /dst_ndt_double */
    if ((tid = H5Topen2(fid_dst, "/" DST_NDT_DOUBLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /src_root/src_ndt_float */
    if ((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_FLOAT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /dst_ndt_float */
    if ((tid = H5Topen2(fid_dst, "/" DST_NDT_FLOAT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /src_root/src_ndt_int */
    if ((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /dst_ndt_int */
    if ((tid = H5Topen2(fid_dst, "/" DST_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* get token of committed datatype: /src_root/src_ndt_short */
    if ((tid = H5Topen2(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* open attribute; get its dtype; get dtype's token: /src_root/src_ndt_double/dst_attr */
    if ((aid = H5Aopen_by_name(fid_dst, "/" SRC_ROOT_GROUP "/" SRC_NDT_DOUBLE, DST_ATTR, H5P_DEFAULT,
                               H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;

    /* close the files */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the object copy property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(ocpypl_id);
        H5Tclose(tid);
        H5Tclose(tid1);
        H5Tclose(tid2);
        H5Tclose(tid3);
        H5Tclose(tid4);
        H5Tclose(tid5);
        H5Aclose(aid);
        H5Sclose(sid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_cdt_merge_cdt */

/*-------------------------------------------------------------------------
 * Function:    test_copy_cdt_merge_suggs
 *
 * Purpose:     Tests the suggested searching paths feature (H5Padd_merge_committed_dtype_path)
 *        is correctly applied in merging the committed datatypes.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_cdt_merge_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t       fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t       tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t       ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    H5O_info2_t oinfo;                                                /* Object info */
    H5O_token_t exp_token;                                            /* Expected object token */
    char        src_filename[NAME_BUF_SIZE];
    char        dst_filename[NAME_BUF_SIZE];
    int         token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging committed datatypes with suggestions and reopen");
    else
        TESTING("H5Ocopy(): merging committed datatypes with suggestions");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /*
     * Populate source file
     */
    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype: "/src_ndt_int" */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype: "/dst_ndt_int"  */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Create a group /uncopied */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 1
     */
    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_int" from SRC file to "/uncopied/src_ndt_int" at DST file */
    if (H5Ocopy(fid_src, SRC_NDT_INT, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, ocpypl_id, H5P_DEFAULT) <
        0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open committed dtype "/dst_ndt_int", get its token */
    if ((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* check token of "/uncopied/src_ndt_int" */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 2
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add committed datatype search suggestion: "/uncopied/src_ndt_int" */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_int" from SRC file to "/src_ndt_int" at DST file */
    if (H5Ocopy(fid_src, SRC_NDT_INT, fid_dst, SRC_NDT_INT, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open committed dtype "/uncopied/src_ndt_int", get its token */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* check token of "/src_ndt_int" */
    if ((tid = H5Topen2(fid_dst, SRC_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 3
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* remove "/uncopied/src_ndt_int" from DST file */
    if (H5Ldelete(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_int" from SRC file to "/uncopied/src_ndt_int" at DST file */
    /* use default ocpypl_id -- without merging and suggestion */
    if (H5Ocopy(fid_src, SRC_NDT_INT, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_int" from SRC file to "/src_ndt_int2" at DST file */
    /* copy with merging and search suggestion: "/uncopied/src_ndt_int" */
    if (H5Ocopy(fid_src, SRC_NDT_INT, fid_dst, SRC_NDT_INT2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "/uncopied/src_ndt_int", get its token */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* check token of "/src_ndt_int2" */
    if ((tid = H5Topen2(fid_dst, SRC_NDT_INT2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 4
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add committed datatype search suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, DST_NDT_INT) < 0)
        TEST_ERROR;

    /* copy "src_ndt_int" from SRC file to "/uncopied/src_ndt_int2" at DST file */
    /* copy with merging and search suggestion: "/dst_ndt_int, /uncopied/src_ndt_int" */
    if (H5Ocopy(fid_src, SRC_NDT_INT, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT2, ocpypl_id, H5P_DEFAULT) <
        0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "/dst_dt_int", get its token */
    if ((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* check token of "/uncopied/src_ndt_int2" */
    if ((tid = H5Topen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_INT2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_cdt_merge_suggs */

/*-------------------------------------------------------------------------
 * Function:    test_copy_cdt_merge_dset_suggs
 *
 * Purpose:     Tests the suggested searching paths feature (H5Padd_merge_committed_dtype_path)
 *        is correctly applied in merging the committed datatypes of datasets.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_cdt_merge_dset_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t        fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t        tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t        sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t        did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t        ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    unsigned int i;                                                    /* Local index variables */
    hsize_t      dim1d[1];                                             /* Dataset dimensions */
    int          buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    H5O_info2_t  oinfo;                                                /* Object info */
    H5O_token_t  exp_token;                                            /* Expected object token */
    char         src_filename[NAME_BUF_SIZE];
    char         dst_filename[NAME_BUF_SIZE];
    int          token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): merging committed datatypes of datasets with suggestions and reopen");
    else
        TESTING("H5Ocopy(): merging committed datatypes of datasets with suggestions");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /*
     * Populate source file
     */
    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype: "/src_ndt_int" */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_src, SRC_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create dataset */
    if ((did = H5Dcreate2(fid_src, SRC_NDT_DSET, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to dataset */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* create committed datatype: "/dst_ndt_int" */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Create a group "/uncopied" */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /*
     * Test 1
     */
    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_dset" from SRC file to "/uncopied/src_ndt_dset" at DST file */
    if (H5Ocopy(fid_src, SRC_NDT_DSET, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, ocpypl_id,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "/dst_ndt_int", get its token */
    if ((tid = H5Topen2(fid_dst, DST_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* check token of datatype for the copied dataset: "/uncopied/src_ndt_dset"  */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 2
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add committed datatype search suggestion: "/uncopied/src_ndt_dset" */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET) < 0)
        TEST_ERROR;

    /* copy "/src_ndt_dset" from SRC file to "/src_ndt_dset" at DST file */
    if (H5Ocopy(fid_src, SRC_NDT_DSET, fid_dst, SRC_NDT_DSET, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype dataset "/uncopied/src_ndt_dset", get its datatype token */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for the copied dataset: "/src_ndt_dset" */
    if ((did = H5Dopen2(fid_dst, SRC_NDT_DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 3
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* remove "/uncopied/src_ndt_dset" */
    if (H5Ldelete(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy "src_ndt_dset" from SRC file to "/uncopied/src_ndt_dset" at DST file */
    /* use default ocpypl_id -- without merging and suggestion */
    if (H5Ocopy(fid_src, SRC_NDT_DSET, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy "src_ndt_dset" from SRC file to "/src_ndt_dset2" at DST file */
    /* use merging and suggested searching path: "/uncopied/src_ndt_dset" */
    if (H5Ocopy(fid_src, SRC_NDT_DSET, fid_dst, SRC_NDT_DSET2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open the copied dataset: /uncopied/src_ndt_dset", get its token  */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for the copied dataset: "/src_ndt_dset2" */
    if ((did = H5Dopen2(fid_dst, SRC_NDT_DSET2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 4
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add committed datatype search suggestion: "/src_ndt_dset" */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, SRC_NDT_DSET) < 0)
        TEST_ERROR;

    /* copy /src_ndt_dset from SRC file to /uncopied/src_ndt_dset2 at DST */
    /* use merging and suggested search paths: "/src_ndt_dset, /uncopied/src_ndt_dset" */
    if (H5Ocopy(fid_src, SRC_NDT_DSET, fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2, ocpypl_id,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open the copied dataset: "/src_ndt_dset", get its datatype token */
    if ((did = H5Dopen2(fid_dst, SRC_NDT_DSET, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* check token of datatype for the copied dataset: /uncopied/src_ndt_dset2 */
    if ((did = H5Dopen2(fid_dst, NAME_GROUP_UNCOPIED "/" SRC_NDT_DSET2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_cdt_merge_dset_suggs */

/*-------------------------------------------------------------------------
 * Function:    test_copy_cdt_merge_all_suggs
 *
 * Purpose:     Tests the merging committed datatype + search suggestion feature.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_cdt_merge_all_suggs(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   gid       = H5I_INVALID_HID;                          /* Group ID */
    hid_t   sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t   tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t   aid       = H5I_INVALID_HID;                          /* Attribute ID */
    hid_t   did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t   exp_did   = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t   tid_short = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t   exp_tid   = H5I_INVALID_HID;                          /* Expected datatype ID */
    hid_t   ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    hsize_t dim1d[1];                                             /* Dataset dimensions */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    if (reopen)
        TESTING("H5Ocopy(): merging different committed datatypes with suggestions and reopen");
    else
        TESTING("H5Ocopy(): merging different committed datatypes with suggestions");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /*
     * Populate source file
     */

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* set dataspace dimension, create dataspace */
    dim1d[0] = DIM_SIZE_1;
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create a group */
    if ((gid = H5Gcreate2(fid_src, SRC_GRP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create committed datatype in group */
    if ((tid = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, SRC_NDT_SHORT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create first dataset in group */
    if ((did = H5Dcreate2(gid, SRC_NDT_DSET, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create committed datatype in group */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, SRC_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create second dataset in group */
    if ((did = H5Dcreate2(gid, SRC_NDT_DSET2, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create third dataset in group */
    if ((did = H5Dcreate2(gid, SRC_DSET, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* get datatype */
    if ((tid_short = H5Topen2(fid_src, "/" SRC_GRP "/" SRC_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to the dataset */
    if ((aid = H5Acreate2(did, SRC_ATTR, tid_short, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Tclose(tid_short) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /*
     * Populate DST file
     */

    /* create DST file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* set dataspace dimension, create dataspace */
    dim1d[0] = DIM_SIZE_2;
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /* create committed datatype in root group */
    if ((tid = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_SHORT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create committed datatype in root group */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to committed datatype */
    if ((aid = H5Acreate2(tid, DST_ATTR, tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create committed datatype in root group */
    if ((tid = H5Tcopy(H5T_NATIVE_FLOAT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_FLOAT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to committed datatype */
    if ((aid = H5Acreate2(tid, DST_ATTR, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create a group */
    if ((gid = H5Gcreate2(fid_dst, DST_GRP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create a committed datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, DST_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to committed datatype */
    if ((aid = H5Acreate2(gid, DST_ATTR, tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create an attribute attached to group */
    if ((aid = H5Acreate2(gid, DST_ATTR2, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* create a group */
    if ((gid = H5Gcreate2(fid_dst, DST_GRP2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create a committed datatype in group */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, DST_NDT_INT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to group */
    if ((aid = H5Acreate2(gid, DST_ATTR, tid, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create a committed datatype in group */
    if ((tid = H5Tcopy(H5T_NATIVE_SHORT)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(gid, DST_NDT_SHORT, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* create a committed datatype at root group */
    if ((tid = H5Tcopy(H5T_NATIVE_DOUBLE)) < 0)
        TEST_ERROR;
    if ((H5Tcommit2(fid_dst, DST_NDT_DOUBLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* get datatype */
    if ((tid_short = H5Topen2(fid_dst, "/" DST_GRP2 "/" DST_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create an attribute attached to committed datatype */
    if ((aid = H5Acreate2(tid, DST_ATTR, tid_short, sid, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid_short) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 1
     */
    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset2" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET2, fid_dst, "A_src_dset2", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* get datatype for attribute attached to the group */
    if ((aid = H5Aopen_by_name(fid_dst, DST_GRP, DST_ATTR, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((exp_tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;

    /* open datatype of dataset */
    if ((did = H5Dopen2(fid_dst, "A_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 2
     */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add committed datatype search suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/" DST_GRP2) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset2" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET2, fid_dst, "B_src_dset2", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* get datatype for attribute attached to the group */
    if ((aid = H5Aopen_by_name(fid_dst, DST_GRP2, DST_ATTR, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((exp_tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;

    /* open datatype of dataset */
    if ((did = H5Dopen2(fid_dst, "B_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 3
     */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* add another committed datatype search suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/" DST_GRP "/" DST_NDT_INT) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset2" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET2, fid_dst, "C_src_dset2", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open committed dtype "/dst_grp/dst_dt_int", get its token */
    if ((exp_tid = H5Topen2(fid_dst, "/" DST_GRP "/" DST_NDT_INT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open datatype of dataset */
    if ((did = H5Dopen2(fid_dst, "C_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 4
     */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* delete the group */
    if (H5Ldelete(fid_dst, "/" DST_GRP, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* free the search suggestion paths */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset2" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET2, fid_dst, "D_src_dset2", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open datatype of dataset */
    if ((exp_did = H5Dopen2(fid_dst, "A_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((exp_tid = H5Dget_type(exp_did)) < 0)
        TEST_ERROR;

    /* Open datatype of dataset */
    if ((did = H5Dopen2(fid_dst, "C_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* open datatype of dataset */
    if ((did = H5Dopen2(fid_dst, "D_src_dset2", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* closing */
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;
    if (H5Dclose(exp_did) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 5
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Add committed datatype search suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/" DST_NDT_DOUBLE) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET, fid_dst, "A_src_dset", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open attribute's dtype attached to committed datatype /dst_ndt_double */
    if ((aid = H5Aopen_by_name(fid_dst, DST_NDT_DOUBLE, DST_ATTR, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((exp_tid = H5Aget_type(aid)) < 0)
        TEST_ERROR;

    /* Open datatype of dataset, check token */
    if ((did = H5Dopen2(fid_dst, "A_src_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Aclose(aid) < 0)
        TEST_ERROR;
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Test 6
     */
    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Add committed datatype search suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/" DST_NDT_SHORT) < 0)
        TEST_ERROR;

    /* copy "/src_grp/src_ndt_dset" from SRC file to DST file */
    if (H5Ocopy(fid_src, "/" SRC_GRP "/" SRC_NDT_DSET, fid_dst, "B_src_dset", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* open committed dtype "/dst_ndt_short" */
    if ((exp_tid = H5Topen2(fid_dst, "/" DST_NDT_SHORT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* open datatype of dataset, check token */
    if ((did = H5Dopen2(fid_dst, "B_src_dset", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;

    /* should be the same */
    if (!H5Tequal(exp_tid, tid))
        TEST_ERROR;

    /* closing */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Tclose(exp_tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Tclose(tid_short);
        H5Tclose(exp_tid);
        H5Dclose(did);
        H5Dclose(exp_did);
        H5Aclose(aid);
        H5Sclose(sid);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_cdt_merge_all_suggs */

/*-------------------------------------------------------------------------
 * Function:    test_copy_set_mcdt_search_cb
 *
 * Purpose:     Tests the "H5Pset_mcdt_search_cb" feature of H5Ocopy to
 *              stop or continue the search of global list
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
/* User data struct for the callback */
typedef struct mcdt_search_cb_ud {
    H5O_mcdt_search_ret_t search_action; /* Return value for callback */
    unsigned              called;        /* # of times callback has been called */
} mcdt_search_cb_ud;

/* The user callback function */
static H5O_mcdt_search_ret_t
mcdt_search_cb(void *_udata)
{
    mcdt_search_cb_ud *udata = (mcdt_search_cb_ud *)_udata;

    udata->called++;
    return (udata->search_action);
} /* mcdt_search_cb() */

static int
test_copy_set_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t             fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t             tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t             sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t             did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t             ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    unsigned int      i;                                                    /* Local index variables */
    hsize_t           dim1d[1];                                             /* Dataset dimensions */
    int               buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    H5O_info2_t       oinfo;                                                /* Object info */
    H5O_token_t       exp_token;                                            /* Expected object token */
    char              src_filename[NAME_BUF_SIZE];
    char              dst_filename[NAME_BUF_SIZE];
    mcdt_search_cb_ud cb_udata; /* User data for callback */
    int               token_cmp;

    if (reopen)
        TESTING("H5Ocopy(): H5Pset_mcdt_search_cb and reopen");
    else
        TESTING("H5Ocopy(): H5Pset_mcdt_search_cb");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate source file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* named datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied group in destination file */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "a" */
    if ((H5Tcommit2(fid_dst, "/a", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "b" */
    if ((H5Tcommit2(fid_dst, "/b", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * First copy dataset using "/b" as a suggestion, and verify that it uses
     * datatype "b" in the destination file
     */
    /* Add datatype suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/b") < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "b", get token */
    if ((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open dset dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Set callback to continue the search
     */
    cb_udata.search_action = H5O_MCDT_SEARCH_CONT;
    cb_udata.called        = 0;

    /* Free suggestions */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    /* Add datatype suggestion to group "/uncopied" */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, NAME_GROUP_UNCOPIED) < 0)
        TEST_ERROR;

    /* Continue the global search */
    if (H5Pset_mcdt_search_cb(ocpypl_id, mcdt_search_cb, &cb_udata) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Verify callback has been called exactly once */
    if (cb_udata.called != 1)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "a", get token */
    if ((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open copied dataset and its dtype, check token */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Stop the search, default action is to create an anonymous committed datatype
     */
    cb_udata.search_action = H5O_MCDT_SEARCH_STOP;
    cb_udata.called        = 0;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE3, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Verify callback has been called exactly once */
    if (cb_udata.called != 1)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "a", get token */
    if ((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open the copied dataset and get its dtype, tokens should not be equal */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open committed dtype "b", get token */
    if ((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open the copied dataset and get its dtype, tokens should not be equal */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Stop the search, default action is to create an anonymous committed datatype.
     * Disable suggestion list.
     */
    cb_udata.search_action = H5O_MCDT_SEARCH_STOP;
    cb_udata.called        = 0;

    /* Free suggestions */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Delete dataset */
    if (H5Ldelete(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE3, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* Verify callback has been called exactly once */
    if (cb_udata.called != 1)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Open committed dtype "a", get token */
    if ((tid = H5Topen2(fid_dst, "/a", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open the copied dataset and get its dtype, tokens should not be equal */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Open committed dtype "b", get token */
    if ((tid = H5Topen2(fid_dst, "/b", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    memcpy(&exp_token, &oinfo.token, sizeof(exp_token));
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* Open the copied dataset and get its dtype, tokens should not be equal */
    if ((did = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((tid = H5Dget_type(did)) < 0)
        TEST_ERROR;
    if (H5Oget_info3(tid, &oinfo, H5O_INFO_BASIC) < 0)
        TEST_ERROR;
    if (H5Otoken_cmp(tid, &oinfo.token, &exp_token, &token_cmp) < 0)
        TEST_ERROR;
    if (!token_cmp)
        TEST_ERROR;
    if (H5Tclose(tid) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_set_mcdt_search_cb */

/*-------------------------------------------------------------------------
 * Function:    test_copy_set_get_mcdt_cb
 *
 * Purpose:     Tests for the "H5Pset/get_mcdt_search_cb" feature of H5Ocopy.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */

/* The user callback functions */
static H5O_mcdt_search_ret_t
mcdt_search_cbA(void *_udata)
{
    H5O_mcdt_search_ret_t *action = (H5O_mcdt_search_ret_t *)_udata;

    return (*action);
} /* mcdt_search_cb() */

static H5O_mcdt_search_ret_t
mcdt_search_cbB(void *_udata)
{
    H5O_mcdt_search_ret_t *action = (H5O_mcdt_search_ret_t *)_udata;

    return (*action);
} /* mnt_search_cb() */

/* The main test function */
static int
test_copy_set_get_mcdt_search_cb(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, bool reopen)
{
    hid_t                  fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t                  tid       = H5I_INVALID_HID;                          /* Datatype ID */
    hid_t                  sid       = H5I_INVALID_HID;                          /* Dataspace ID */
    hid_t                  did       = H5I_INVALID_HID;                          /* Dataset ID */
    hid_t                  ocpypl_id = H5I_INVALID_HID;                          /* Object copy plist ID */
    unsigned int           i;                                                    /* Local index variables */
    hsize_t                dim1d[1];                                             /* Dataset dimensions */
    int                    buf[DIM_SIZE_1];                                      /* Buffer for writing data */
    char                   src_filename[NAME_BUF_SIZE];
    char                   dst_filename[NAME_BUF_SIZE];
    H5O_mcdt_search_cb_t   mcdt_cb = NULL;      /* The callback function */
    H5O_mcdt_search_ret_t  mcdt_udataA;         /* User data for callback */
    H5O_mcdt_search_ret_t  mcdt_udataB;         /* User data for callback */
    H5O_mcdt_search_ret_t *mcdt_udata_p = NULL; /* Pointer to user data for callback */

    if (reopen)
        TESTING("H5Ocopy(): H5Pset/get_mcdt_search_cb and reopen");
    else
        TESTING("H5Ocopy(): H5Pset/get_mcdt_search_cb");

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        buf[i] = (int)i;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim1d[0] = DIM_SIZE_1;

    /* create dataspace */
    if ((sid = H5Screate_simple(1, dim1d, NULL)) < 0)
        TEST_ERROR;

    /*
     * Populate source file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create dataset at SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, tid, sid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data into file */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied group in destination file */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /*
     * Populate destination file
     */
    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "a" */
    if ((H5Tcommit2(fid_dst, "/a", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* create datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* committed datatype "b" */
    if ((H5Tcommit2(fid_dst, "/b", tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* Create ocpl and set merge committed dtype flag */
    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_MERGE_COMMITTED_DTYPE_FLAG) < 0)
        TEST_ERROR;

    /*
     * First copy dataset using "/b" as a suggestion, and verify that it uses
     * datatype "b" in the destination file
     */
    /* Add datatype suggestion */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, "/b") < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    /* Verify "get" routine functionality */
    if (H5Pget_mcdt_search_cb(ocpypl_id, &mcdt_cb, (void **)&mcdt_udata_p) < 0)
        TEST_ERROR;

    if (mcdt_cb != NULL)
        TEST_ERROR;
    if (mcdt_udata_p != NULL)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Set callback to continue the search
     */
    mcdt_udataA = H5O_MCDT_SEARCH_CONT;

    /* Free suggestions */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    /* Add datatype suggestion to group "/uncopied" */
    if (H5Padd_merge_committed_dtype_path(ocpypl_id, NAME_GROUP_UNCOPIED) < 0)
        TEST_ERROR;

    /* Continue the global search */
    if (H5Pset_mcdt_search_cb(ocpypl_id, mcdt_search_cbA, &mcdt_udataA) < 0)
        TEST_ERROR;

    /* open the destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE2, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    mcdt_cb      = NULL;
    mcdt_udata_p = NULL;

    /* Verify "get" routine functionality */
    if (H5Pget_mcdt_search_cb(ocpypl_id, &mcdt_cb, (void **)&mcdt_udata_p) < 0)
        TEST_ERROR;

    if (mcdt_cb != mcdt_search_cbA)
        TEST_ERROR;
    if (mcdt_udata_p != &mcdt_udataA)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /*
     * Stop the search, default action is to create an anonymous committed datatype
     */
    mcdt_udataB = H5O_MCDT_SEARCH_STOP;

    if (H5Pset_mcdt_search_cb(ocpypl_id, mcdt_search_cbA, &mcdt_udataB) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE3, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    mcdt_cb      = NULL;
    mcdt_udata_p = NULL;

    /* Verify "get" routine functionality */
    if (H5Pget_mcdt_search_cb(ocpypl_id, &mcdt_cb, (void **)&mcdt_udata_p) < 0)
        TEST_ERROR;

    if (mcdt_cb != mcdt_search_cbA)
        TEST_ERROR;
    if (mcdt_udata_p != &mcdt_udataB)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* Free suggestions */
    if (H5Pfree_merge_committed_dtype_paths(ocpypl_id) < 0)
        TEST_ERROR;

    if (H5Pset_mcdt_search_cb(ocpypl_id, mcdt_search_cbB, &mcdt_udataB) < 0)
        TEST_ERROR;

    /* open destination file */
    if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Delete dataset */
    if (H5Ldelete(fid_dst, NAME_DATASET_SIMPLE3, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* copy SRC dset to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE3, ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (reopen) {
        /* Reopen file */
        if (H5Fclose(fid_dst) < 0)
            TEST_ERROR;
        if ((fid_dst = H5Fopen(dst_filename, H5F_ACC_RDONLY, dst_fapl)) < 0)
            TEST_ERROR;
    } /* end if */

    mcdt_cb      = NULL;
    mcdt_udata_p = NULL;

    /* Verify "get" routine functionality */
    if (H5Pget_mcdt_search_cb(ocpypl_id, &mcdt_cb, (void **)&mcdt_udata_p) < 0)
        TEST_ERROR;

    if (mcdt_cb != mcdt_search_cbB)
        TEST_ERROR;
    if (mcdt_udata_p != &mcdt_udataB)
        TEST_ERROR;

    /* Close destination file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close property list */
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Fclose(fid_src);
        H5Fclose(fid_dst);
        H5Tclose(tid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Pclose(ocpypl_id);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_set_get_mcdt_search_cb */

/*-------------------------------------------------------------------------
 * Function:    test_copy_iterate
 *
 * Purpose:     Tests iterating over objects in the root group, copying
 *              all of them.
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static herr_t
test_copy_iterate_cb(hid_t loc_id, const char *name, const H5L_info2_t H5_ATTR_UNUSED *link_info,
                     void *op_data)
{
    hid_t dst_loc_id = *((hid_t *)op_data);

    if (H5Ocopy(loc_id, name, dst_loc_id, name, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    return (H5_ITER_CONT);

error:
    return (H5_ITER_ERROR);
} /* end test_copy_iterate_cb */

/*
 * Test for a bug with copying of v1 object headers where the
 * new object header would end up with a gap in the header data,
 * which v1 object header shouldn't have.
 */
static int
test_copy_cdt_v1_header_bug(hid_t fcpl_src, hid_t src_fapl)
{
    hid_t file_id   = H5I_INVALID_HID;
    hid_t type_id   = H5I_INVALID_HID;
    hid_t ocpypl_id = H5I_INVALID_HID;
    char  src_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): bug with copying v1 object headers");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);

    if ((file_id = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    if ((type_id = H5Tcreate(H5T_STRING, 385)) < 0)
        TEST_ERROR;
    if (H5Tset_strpad(type_id, H5T_STR_NULLPAD) < 0)
        TEST_ERROR;
    if (H5Tset_cset(type_id, H5T_CSET_ASCII) < 0)
        TEST_ERROR;

    if (H5Tcommit2(file_id, "committed_str_type", type_id, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if ((ocpypl_id = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;
    if (H5Pset_copy_object(ocpypl_id, H5O_COPY_WITHOUT_ATTR_FLAG) < 0)
        TEST_ERROR;

    if (H5Ocopy(file_id, "committed_str_type", file_id, "committed_str_type2", ocpypl_id, H5P_DEFAULT) < 0)
        TEST_ERROR;

    if (H5Tclose(type_id) < 0)
        TEST_ERROR;
    if (H5Pclose(ocpypl_id) < 0)
        TEST_ERROR;
    if (H5Fclose(file_id) < 0)
        TEST_ERROR;

    PASSED();

    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Tclose(type_id);
        H5Pclose(ocpypl_id);
        H5Fclose(file_id);
    }
    H5E_END_TRY

    return 1;
}

static int
test_copy_iterate(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t fid1 = H5I_INVALID_HID, fid2 = H5I_INVALID_HID; /* File IDs */
    hid_t gid = H5I_INVALID_HID;                          /* Group ID */
    int   i;
    char  grp_name[16];
    char  src_filename[NAME_BUF_SIZE];
    char  dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): inside H5Literate() callback");

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], src_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* Create source file */
    if ((fid1 = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* Create groups */
    for (i = 0; i < 9; i++) {
        snprintf(grp_name, sizeof(grp_name), "grp%d", i);
        if ((gid = H5Gcreate2(fid1, grp_name, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Gclose(gid) < 0)
            TEST_ERROR;
    } /* end for */

    /* Create destination file */
    if ((fid2 = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Close files */
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    /* Reopen files */
    if ((fid1 = H5Fopen(src_filename, H5F_ACC_RDWR, src_fapl)) < 0)
        TEST_ERROR;
    if ((fid2 = H5Fopen(dst_filename, H5F_ACC_RDWR, dst_fapl)) < 0)
        TEST_ERROR;

    /* Iterate over links in the root group, copying each object */
    if ((gid = H5Gopen2(fid1, "/", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Literate2(gid, H5_INDEX_NAME, H5_ITER_INC, NULL, test_copy_iterate_cb, &fid2) < 0)
        TEST_ERROR;

    /* Close */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;
    if (H5Fclose(fid1) < 0)
        TEST_ERROR;
    if (H5Fclose(fid2) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Gclose(gid);
        H5Fclose(fid1);
        H5Fclose(fid2);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_iterate */

/*-------------------------------------------------------------------------
 * Function:    test_copy_option
 *
 * Purpose:     Create a group in SRC file and copy it to DST file
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_option(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl, unsigned flag,
                 bool crt_intermediate_grp, const char *test_desciption)
{
    hid_t    fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID, fid_ext = H5I_INVALID_HID; /* File IDs */
    hid_t    sid = H5I_INVALID_HID;                                                    /* Dataspace ID */
    hid_t    did = H5I_INVALID_HID;                                                    /* Dataset ID */
    hid_t    gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID, gid_ref = H5I_INVALID_HID; /* Group IDs */
    hid_t    gid_sub = H5I_INVALID_HID, gid_sub_sub = H5I_INVALID_HID;                 /* Sub-group ID */
    hid_t    pid = H5I_INVALID_HID, lcpl_id = H5I_INVALID_HID;                         /* Property IDs */
    unsigned cpy_flags;                                                                /* Object copy flags */
    int      depth = -1;                                                               /* Copy depth */
    hsize_t  dim2d[2];
    int      buf[DIM_SIZE_1][DIM_SIZE_2];
    int      i, j;
    char     src_filename[NAME_BUF_SIZE];
    char     dst_filename[NAME_BUF_SIZE];

    TESTING(test_desciption);

    /* set initial data values */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create group at the SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* add a dataset to the top group */
    if ((did = H5Dcreate2(gid, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create a sub-group */
    if ((gid_sub = H5Gcreate2(fid_src, NAME_GROUP_SUB, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* add a dataset to the sub group */
    if ((did = H5Dcreate2(gid_sub, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* create sub-sub-group */
    if ((gid_sub_sub = H5Gcreate2(gid_sub, NAME_GROUP_SUB_SUB2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* add a dataset to the sub sub group */
    if ((did = H5Dcreate2(gid_sub_sub, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* close dataset */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    if (H5Gclose(gid_sub_sub) < 0)
        TEST_ERROR;

    if (H5Gclose(gid_sub) < 0)
        TEST_ERROR;

    /* close the group */
    if (H5Gclose(gid) < 0)
        FAIL_STACK_ERROR;

    if ((flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG) > 0) {
        /* Create group to copy */
        if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
        if (H5Lcreate_soft(NAME_DATASET_SUB_SUB, fid_src, NAME_LINK_SOFT, H5P_DEFAULT, H5P_DEFAULT) < 0)
            FAIL_STACK_ERROR;
        if (H5Lcreate_soft("nowhere", fid_src, NAME_LINK_SOFT_DANGLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
            FAIL_STACK_ERROR;
        if (H5Gclose(gid) < 0)
            FAIL_STACK_ERROR;

        /* Create group to compare with */
        if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
        if (H5Lcreate_hard(fid_src, NAME_DATASET_SUB_SUB, H5L_SAME_LOC, NAME_LINK_SOFT2, H5P_DEFAULT,
                           H5P_DEFAULT) < 0)
            FAIL_STACK_ERROR;
        if (H5Lcreate_soft("nowhere", fid_src, NAME_LINK_SOFT_DANGLE2, H5P_DEFAULT, H5P_DEFAULT) < 0)
            FAIL_STACK_ERROR;
        if (H5Gclose(gid) < 0)
            FAIL_STACK_ERROR;
    } /* end if */

    if ((flag & H5O_COPY_EXPAND_EXT_LINK_FLAG) > 0) {
        char ext_filename[NAME_BUF_SIZE];

        h5_fixname(FILENAME[2], src_fapl, ext_filename, sizeof ext_filename);

        /* Create the external file and dataset */
        if ((fid_ext = H5Fcreate(ext_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
            TEST_ERROR;
        if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
            TEST_ERROR;
        if ((did = H5Dcreate2(fid_ext, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                              H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
            TEST_ERROR;
        if (H5Dclose(did) < 0)
            TEST_ERROR;
        if (H5Fclose(fid_ext) < 0)
            TEST_ERROR;

        /* Create group to copy */
        if (!(flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG)) {
            if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                TEST_ERROR;
        } /* end if */
        else if ((gid = H5Gopen2(fid_src, NAME_GROUP_LINK, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Lcreate_external(ext_filename, NAME_DATASET_SIMPLE, fid_src, NAME_LINK_EXTERN, H5P_DEFAULT,
                               H5P_DEFAULT) < 0)
            TEST_ERROR;
        if (H5Lcreate_external("no_file", "no_object", fid_src, NAME_LINK_EXTERN_DANGLE, H5P_DEFAULT,
                               H5P_DEFAULT) < 0)
            TEST_ERROR;
        if (H5Gclose(gid) < 0)
            TEST_ERROR;

        /* Create group to compare with */
        if (!(flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG)) {
            if ((gid = H5Gcreate2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
                TEST_ERROR;
        } /* end if */
        else if ((gid = H5Gopen2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if ((did = H5Dcreate2(fid_src, NAME_LINK_EXTERN2, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                              H5P_DEFAULT)) < 0)
            TEST_ERROR;
        if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
            TEST_ERROR;
        if (H5Lcreate_external("no_file", "no_object", fid_src, NAME_LINK_EXTERN_DANGLE2, H5P_DEFAULT,
                               H5P_DEFAULT) < 0)
            TEST_ERROR;
        if (H5Dclose(did) < 0)
            TEST_ERROR;
        if (H5Gclose(gid) < 0)
            TEST_ERROR;

        /* Close dataspace */
        if (H5Sclose(sid) < 0)
            TEST_ERROR;
    } /* end if */

    if ((flag & H5O_COPY_EXPAND_REFERENCE_FLAG) > 0) {
        if ((gid_ref = H5Gcreate2(fid_src, NAME_GROUP_REF, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
            TEST_ERROR;

        /* create an attribute of object references */
        if (attach_ref_attr(fid_src, gid_ref) < 0)
            TEST_ERROR;

        /* create an attribute of region references */
        if (attach_reg_ref_attr(fid_src, gid_ref) < 0)
            TEST_ERROR;

        /* create a dataset of region references */
        if (create_reg_ref_dataset(fid_src, gid_ref) < 0)
            TEST_ERROR;

        /* Close group holding reference objects */
        if (H5Gclose(gid_ref) < 0)
            TEST_ERROR;
    } /* end if */

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* open the source file with read-only */
    /* (except when expanding soft links */
    if ((flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG) > 0) {
        if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDWR, src_fapl)) < 0)
            TEST_ERROR;
    } /* end if */
    else if ((fid_src = H5Fopen(src_filename, H5F_ACC_RDONLY, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination
       files aren't the same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create property to pass copy options */
    if ((pid = H5Pcreate(H5P_OBJECT_COPY)) < 0)
        TEST_ERROR;

    /* set options for object copy */
    if (H5Pset_copy_object(pid, flag) < 0)
        TEST_ERROR;

    /* Verify object copy flags */
    if (H5Pget_copy_object(pid, &cpy_flags) < 0)
        TEST_ERROR;
    if (cpy_flags != flag)
        TEST_ERROR;

    /* copy the group from SRC to DST */
    if (crt_intermediate_grp) {
        /* Create link creation plist to pass in intermediate group creation */
        if ((lcpl_id = H5Pcreate(H5P_LINK_CREATE)) < 0)
            TEST_ERROR;
        if (H5Pset_create_intermediate_group(lcpl_id, true) < 0)
            TEST_ERROR;

        if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, "/new_g0/new_g00", pid, lcpl_id) < 0)
            TEST_ERROR;

        if (H5Pclose(lcpl_id) < 0)
            TEST_ERROR;

        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* open the destination group */
        if ((gid2 = H5Gopen2(fid_dst, "/new_g0/new_g00", H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
    }
    else if (((flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG) > 0) || ((flag & H5O_COPY_EXPAND_EXT_LINK_FLAG) > 0)) {
        if (H5Ocopy(fid_src, NAME_GROUP_LINK, fid_dst, NAME_GROUP_LINK, pid, H5P_DEFAULT) < 0)
            TEST_ERROR;

        if ((flag & H5O_COPY_EXPAND_SOFT_LINK_FLAG) > 0)
            /* Unlink dataset to copy from original location */
            /* (So group comparison works properly) */
            if (H5Ldelete(fid_src, NAME_DATASET_SUB_SUB, H5P_DEFAULT) < 0)
                FAIL_STACK_ERROR;

        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_LINK2, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* open the destination group */
        if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_LINK, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
    }
    else if (flag & (H5O_COPY_WITHOUT_ATTR_FLAG | H5O_COPY_PRESERVE_NULL_FLAG)) {
        if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, pid, H5P_DEFAULT) < 0)
            TEST_ERROR;

        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* open the destination group */
        if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
    }
    else if (flag & H5O_COPY_SHALLOW_HIERARCHY_FLAG) {
        if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, NAME_GROUP_TOP, pid, H5P_DEFAULT) < 0)
            TEST_ERROR;

        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* open the destination group */
        if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_TOP, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* Set the copy depth */
        depth = 1;
    }
    else if ((flag & H5O_COPY_EXPAND_REFERENCE_FLAG) > 0) {
        if (H5Ocopy(fid_src, NAME_GROUP_REF, fid_dst, NAME_GROUP_REF, pid, H5P_DEFAULT) < 0)
            TEST_ERROR;

        /* open the group for copy */
        if ((gid = H5Gopen2(fid_src, NAME_GROUP_REF, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;

        /* open the destination group */
        if ((gid2 = H5Gopen2(fid_dst, NAME_GROUP_REF, H5P_DEFAULT)) < 0)
            FAIL_STACK_ERROR;
    }
    else {
        /* Unknown flag */
        TEST_ERROR;
    } /* end else */

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, pid, depth, flag) != true)
        TEST_ERROR;
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    /* close properties */
    if (H5Pclose(pid) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Pclose(lcpl_id);
        H5Pclose(pid);
        H5Sclose(sid);
        H5Dclose(did);
        H5Gclose(gid_ref);
        H5Gclose(gid_sub);
        H5Gclose(gid2);
        H5Gclose(gid);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
        H5Fclose(fid_ext);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_option */

/*-------------------------------------------------------------------------
 * Function:    test_copy_dataset_open
 *
 * Purpose:     To ensure that H5Ocopy() copies data of opened dataset correctly.
 *        This is for bug fix HDFFV-7853.
 *
 *        Test Case 1:
 *        Create a dataset with attributes in SRC file
 *        Copy the opened dataset to another location in the same file
 *        Copy the opened dataset to DST file
 *        Close the dataset
 *
 *        Test Case 2:
 *        Reopen the dataset, write new data to the dataset
 *        Copy the opened dataset to another location in the same file
 *        Copy the opened dataset to to DST file
 *        Close the dataset
 *
 *        Test Case 3:
 *        Create a committed datatype
 *        Create a dataset with the committed datatype in SRC file
 *        Open the committed datatype
 *        Copy the opened dataset (with the opened committed datatype) to another location in the same file
 *        Copy the opened dataset (with the opened committed datatype) to DST file
 *        Close the dataset and the committed datatype
 *
 *        Test Case 4:
 *        Create a group with attributes, create a dataset in the group
 *        Copy the opened group (together with the opened dataset) to another location in the same file
 *        Copy the opened group (together with the opened dataset) to DST file
 *        Close the group and the dataset
 *
 * Return:      Success:        0
 *              Failure:        number of errors
 *
 *-------------------------------------------------------------------------
 */
static int
test_copy_dataset_open(hid_t fcpl_src, hid_t fcpl_dst, hid_t src_fapl, hid_t dst_fapl)
{
    hid_t   fid_src = H5I_INVALID_HID, fid_dst = H5I_INVALID_HID; /* File IDs */
    hid_t   sid = H5I_INVALID_HID;                                /* Dataspace ID */
    hid_t   tid = H5I_INVALID_HID;                                /* Datatype ID */
    hid_t   did = H5I_INVALID_HID, did2 = H5I_INVALID_HID;        /* Dataset IDs */
    hid_t   did3 = H5I_INVALID_HID, did4 = H5I_INVALID_HID;       /* Dataset IDs */
    hid_t   gid = H5I_INVALID_HID, gid2 = H5I_INVALID_HID;        /* Group IDs */
    hid_t   pid            = H5I_INVALID_HID;                     /* Dataset creation property list */
    hsize_t chunk_dim2d[2] = {CHUNK_SIZE_1, CHUNK_SIZE_2};        /* Chunk dimension sizes */
    int     buf[DIM_SIZE_1][DIM_SIZE_2];                          /* Buffer for writing data */
    int     newbuf[DIM_SIZE_1][DIM_SIZE_2];                       /* Buffer for writing data */
    hsize_t dim2d[2];                                             /* Dataset dimensions */
    int     i, j;                                                 /* local index variables */
    char    src_filename[NAME_BUF_SIZE];
    char    dst_filename[NAME_BUF_SIZE];

    TESTING("H5Ocopy(): copying objects while opened");

    /* Initialize write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            buf[i][j] = 10000 + 100 * i + j;

    /* Initialize another write buffer */
    for (i = 0; i < DIM_SIZE_1; i++)
        for (j = 0; j < DIM_SIZE_2; j++)
            newbuf[i][j] = 100 * i + j;

    /* Initialize the filenames */
    h5_fixname(FILENAME[0], src_fapl, src_filename, sizeof src_filename);
    h5_fixname(FILENAME[1], dst_fapl, dst_filename, sizeof dst_filename);

    /* Reset file token checking info */
    token_reset();

    /* create source file */
    if ((fid_src = H5Fcreate(src_filename, H5F_ACC_TRUNC, fcpl_src, src_fapl)) < 0)
        TEST_ERROR;

    /* create destination file */
    if ((fid_dst = H5Fcreate(dst_filename, H5F_ACC_TRUNC, fcpl_dst, dst_fapl)) < 0)
        TEST_ERROR;

    /* Create an uncopied object in destination file so that tokens in source and destination files aren't the
     * same */
    if (H5Gclose(H5Gcreate2(fid_dst, NAME_GROUP_UNCOPIED, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Set dataspace dimensions */
    dim2d[0] = DIM_SIZE_1;
    dim2d[1] = DIM_SIZE_2;

    /* create 2D dataspace */
    if ((sid = H5Screate_simple(2, dim2d, NULL)) < 0)
        TEST_ERROR;

    /* create and set chunk plist */
    if ((pid = H5Pcreate(H5P_DATASET_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_chunk(pid, 2, chunk_dim2d) < 0)
        TEST_ERROR;

    /* create 2D dataset in SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* create 2D chunked dataset in SRC file */
    if ((did2 = H5Dcreate2(fid_src, NAME_DATASET_CHUNKED, H5T_NATIVE_INT, sid, H5P_DEFAULT, pid,
                           H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to the dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /* attach attributes to the dataset */
    if (test_copy_attach_attributes(did, H5T_NATIVE_INT) < 0)
        TEST_ERROR;
    if (test_copy_attach_attributes(did2, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /*
     * Test case 1
     */

    /*
     * Copy within the same file
     */
    /* copy the opened dataset to another location in SRC file */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_src, NAME_DATASET_SIMPLE2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset */
    if ((did3 = H5Dopen2(fid_src, NAME_DATASET_SIMPLE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did4 = H5Dopen2(fid_src, NAME_DATASET_CHUNKED2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did3, H5P_DEFAULT, buf) != true)
        TEST_ERROR;
    if (compare_datasets(did2, did4, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the copied dataset */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Dclose(did4) < 0)
        TEST_ERROR;

    /*
     * Copy to another file
     */
    /* copy the opened dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset in DST file */
    if ((did3 = H5Dopen2(fid_dst, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did4 = H5Dopen2(fid_dst, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did3, H5P_DEFAULT, buf) != true)
        TEST_ERROR;
    if (compare_datasets(did2, did4, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the copied dataset in DST file */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Dclose(did4) < 0)
        TEST_ERROR;

    /* close the dataset in SRC file */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /*
     * Test case 2
     */
    /* reopen the dataset in SRC file */
    if ((did = H5Dopen2(fid_src, NAME_DATASET_SIMPLE, H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did2 = H5Dopen2(fid_src, NAME_DATASET_CHUNKED, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write another set of data to the dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, newbuf) < 0)
        TEST_ERROR;
    if (H5Dwrite(did2, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, newbuf) < 0)
        TEST_ERROR;

    /*
     * Copy within the same file
     */
    /* copy the opened dataset to another location in SRC file */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_src, "NEW_DATASET_SIMPLE", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_src, "NEW_DATASET_CHUNKED", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset */
    if ((did3 = H5Dopen2(fid_src, "NEW_DATASET_SIMPLE", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did4 = H5Dopen2(fid_src, "NEW_DATASET_CHUNKED", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did3, H5P_DEFAULT, newbuf) != true)
        TEST_ERROR;
    if (compare_datasets(did2, did4, H5P_DEFAULT, newbuf) != true)
        TEST_ERROR;

    /* close the copied dataset in SRC file */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Dclose(did4) < 0)
        TEST_ERROR;
    /*
     * Copy to another file
     */
    /* copy the opened dataset from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_SIMPLE, fid_dst, "NEW_DATASET_SIMPLE", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;
    if (H5Ocopy(fid_src, NAME_DATASET_CHUNKED, fid_dst, "NEW_DATASET_CHUNKED", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset in DST file */
    if ((did3 = H5Dopen2(fid_dst, "NEW_DATASET_SIMPLE", H5P_DEFAULT)) < 0)
        TEST_ERROR;
    if ((did4 = H5Dopen2(fid_dst, "NEW_DATASET_CHUNKED", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did3, H5P_DEFAULT, newbuf) != true)
        TEST_ERROR;
    if (compare_datasets(did2, did4, H5P_DEFAULT, newbuf) != true)
        TEST_ERROR;

    /* close the copied dataset in DST file */
    if (H5Dclose(did3) < 0)
        TEST_ERROR;
    if (H5Dclose(did4) < 0)
        TEST_ERROR;

    /* close the dataset at SRC file */
    if (H5Dclose(did) < 0)
        TEST_ERROR;
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /*
     * Test case 3
     */

    /* make a copy of the datatype */
    if ((tid = H5Tcopy(H5T_NATIVE_INT)) < 0)
        TEST_ERROR;

    /* commit the datatype */
    if ((H5Tcommit2(fid_src, NAME_DATATYPE_SIMPLE, tid, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* close the datatype */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /* open the committed datatype */
    tid = H5Topen2(fid_src, NAME_DATATYPE_SIMPLE, H5P_DEFAULT);

    /* create 2D dataset with the opened committed datatype in SRC file */
    if ((did = H5Dcreate2(fid_src, NAME_DATASET_NAMED_DTYPE, tid, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to the dataset */
    if (H5Dwrite(did, tid, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;

    /*
     * Copy within the same file
     */
    /* copy the opened dataset (with the opened committed datatype) to another location in SRC file */
    if (H5Ocopy(fid_src, NAME_DATASET_NAMED_DTYPE, fid_src, NAME_DATASET_NAMED_DTYPE2, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset */
    if ((did2 = H5Dopen2(fid_src, NAME_DATASET_NAMED_DTYPE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the copied dataset in SRC file */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /*
     * Copy to another file
     */
    /* copy the opened dataset (with the opened committed datatype) from SRC to DST */
    if (H5Ocopy(fid_src, NAME_DATASET_NAMED_DTYPE, fid_dst, NAME_DATASET_NAMED_DTYPE2, H5P_DEFAULT,
                H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied dataset in DST file */
    if ((did2 = H5Dopen2(fid_dst, NAME_DATASET_NAMED_DTYPE2, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the datasets are equal */
    if (compare_datasets(did, did2, H5P_DEFAULT, buf) != true)
        TEST_ERROR;

    /* close the copied dataset in DST file */
    if (H5Dclose(did2) < 0)
        TEST_ERROR;

    /* close the dataset at SRC file */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close the committed datatype at SRC file */
    if (H5Tclose(tid) < 0)
        TEST_ERROR;

    /*
     * Test case 4
     */
    /* create a group in SRC file */
    if ((gid = H5Gcreate2(fid_src, NAME_GROUP_TOP, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* attach attributes to the group */
    if (test_copy_attach_attributes(gid, H5T_NATIVE_INT) < 0)
        TEST_ERROR;

    /* create 2D int dataset in the group at SRC file */
    if ((did = H5Dcreate2(gid, NAME_DATASET_SIMPLE, H5T_NATIVE_INT, sid, H5P_DEFAULT, H5P_DEFAULT,
                          H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* write data to the dataset */
    if (H5Dwrite(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, buf) < 0)
        TEST_ERROR;
    /*
     * Copy within the same file
     */
    /* copy the opened group (together with opened dataset) to another location in SRC file */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_src, "COPIED_GROUP", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied group at SRC */
    if ((gid2 = H5Gopen2(fid_src, "COPIED_GROUP", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the DST dataset */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /*
     * Copy to another file
     */
    /* copy the opened group (together with opened dataset) to DST file */
    if (H5Ocopy(fid_src, NAME_GROUP_TOP, fid_dst, "COPIED_GROUP", H5P_DEFAULT, H5P_DEFAULT) < 0)
        TEST_ERROR;

    /* open the copied group at DST */
    if ((gid2 = H5Gopen2(fid_dst, "COPIED_GROUP", H5P_DEFAULT)) < 0)
        TEST_ERROR;

    /* Check if the groups are equal */
    if (compare_groups(gid, gid2, H5P_DEFAULT, -1, 0) != true)
        TEST_ERROR;

    /* close the group in DST file */
    if (H5Gclose(gid2) < 0)
        TEST_ERROR;

    /* close the group in SRC file */
    if (H5Gclose(gid) < 0)
        TEST_ERROR;

    /* close the dataset in SRC file */
    if (H5Dclose(did) < 0)
        TEST_ERROR;

    /* close dataspace */
    if (H5Sclose(sid) < 0)
        TEST_ERROR;

    /* close the SRC file */
    if (H5Fclose(fid_src) < 0)
        TEST_ERROR;

    /* close the DST file */
    if (H5Fclose(fid_dst) < 0)
        TEST_ERROR;

    PASSED();
    return 0;

error:
    H5E_BEGIN_TRY
    {
        H5Dclose(did);
        H5Dclose(did2);
        H5Sclose(sid);
        H5Gclose(gid);
        H5Gclose(gid2);
        H5Fclose(fid_dst);
        H5Fclose(fid_src);
    }
    H5E_END_TRY
    return 1;
} /* end test_copy_dataset_open */

/*-------------------------------------------------------------------------
 * Function:    main
 *
 * Purpose:     Test H5Ocopy()
 *
 *              Tests a number of cases: messages can be stored in the
 *              new or old format, messages can be shared in either,
 *              both, or neither of the source and destination files.
 *
 * Return:      EXIT_SUCCESS/EXIT_FAILURE
 *
 *-------------------------------------------------------------------------
 */
int
main(void)
{
    int         nerrors = 0;
    hid_t       fapl, fapl2;
    hid_t       fcpl_shared, ocpl;
    unsigned    max_compact, min_dense;
    int         configuration; /* Configuration of tests. */
    int         ExpressMode;
    const char *driver_name; /* File Driver value from environment */
    bool        same_file;   /* Whether to run tests that only use one file */
    bool        driver_is_default_compatible;

    driver_name = h5_get_test_driver_name();

    /* Setup */
    h5_reset();
    fapl = h5_fileaccess();

    if (h5_driver_is_default_vfd_compatible(fapl, &driver_is_default_compatible) < 0)
        TEST_ERROR;

    ExpressMode = GetTestExpress();
    if (ExpressMode > 1)
        printf("***Express test mode on.  Some tests may be skipped\n");

    /* Copy the file access property list */
    if ((fapl2 = H5Pcopy(fapl)) < 0)
        TEST_ERROR;

    /* Set the "use the latest version of the format" bounds for creating objects in the file */
    if (H5Pset_libver_bounds(fapl2, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
        TEST_ERROR;

    /* Create an FCPL with sharing enabled */
    if ((fcpl_shared = H5Pcreate(H5P_FILE_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pset_shared_mesg_nindexes(fcpl_shared, 1) < 0)
        TEST_ERROR;
    if (H5Pset_shared_mesg_index(fcpl_shared, 0, H5O_SHMESG_ALL_FLAG, 10) < 0)
        TEST_ERROR;

    /* Obtain the default attribute storage phase change values */
    if ((ocpl = H5Pcreate(H5P_OBJECT_CREATE)) < 0)
        TEST_ERROR;
    if (H5Pget_attr_phase_change(ocpl, &max_compact, &min_dense) < 0)
        TEST_ERROR;
    if (H5Pclose(ocpl) < 0)
        TEST_ERROR;

    /* Test in all configurations */
    for (configuration = 0; configuration <= MAX_CONFIGURATION; configuration++) {
        hid_t src_fapl;
        hid_t dst_fapl;
        hid_t fcpl_src;
        hid_t fcpl_dst;

        /* Start with same_file == true.  Use source file settings for these
         * tests.  Don't run with a non-default destination file setting, as
         * destination settings have no effect. */
        same_file = true;

        /* No need to test dense attributes with old format */
        if (!(configuration & CONFIG_SRC_NEW_FORMAT) && (configuration & CONFIG_DENSE))
            continue;

        /* Test with and without shared messages */
        if (configuration & CONFIG_SHARE_SRC) {
            puts("\nTesting with shared src messages:");
            fcpl_src = fcpl_shared;
        }
        else {
            puts("\nTesting without shared src messages:");
            fcpl_src = H5P_DEFAULT;
        }
        if (configuration & CONFIG_SHARE_DST) {
            puts("Testing with shared dst messages:");
            fcpl_dst  = fcpl_shared;
            same_file = false;
        }
        else {
            puts("Testing without shared dst messages:");
            fcpl_dst = H5P_DEFAULT;
        }

        /* Set the FAPL for the source file's type of format */
        if (configuration & CONFIG_SRC_NEW_FORMAT) {
            puts("Testing with latest format for source file:");
            src_fapl = fapl2;

            /* Test with and without dense attributes */
            if (configuration & CONFIG_DENSE) {
                puts("Testing with dense attributes:");
                num_attributes_g = max_compact + 1;
            }
            else {
                puts("Testing without dense attributes:");
                num_attributes_g = MAX(min_dense, 2) - 2;
            }
        } /* end if */
        else {
            puts("Testing with oldest file format for source file:");
            src_fapl         = fapl;
            num_attributes_g = 4;
        } /* end else */

        /* Set the FAPL for the destination file's type of format */
        if (configuration & CONFIG_DST_NEW_FORMAT) {
            puts("Testing with latest format for destination file:");
            dst_fapl  = fapl2;
            same_file = false;
        } /* end if */
        else {
            puts("Testing with oldest file format for destination file:");
            dst_fapl = fapl;
        } /* end else */

        /* The tests... */
        nerrors += test_copy_dataset_simple(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_dataset_versionbounds(fcpl_src, src_fapl);
        nerrors += test_copy_dataset_simple_samefile(fcpl_src, src_fapl);

        /* Test with dataset opened in the file or not */
        nerrors += test_copy_dataset_simple_empty(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
        nerrors += test_copy_dataset_simple_empty(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

        nerrors += test_copy_dataset_compound(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_dataset_chunked(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_dataset_chunked_empty(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_dataset_chunked_sparse(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_dataset_compressed(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        /* Test with dataset opened in the file or not */
        nerrors += test_copy_dataset_no_edge_filt(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
        nerrors += test_copy_dataset_no_edge_filt(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

        /* Test with dataset opened in the file or not */
        nerrors += test_copy_dataset_compact(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
        nerrors += test_copy_dataset_compact(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

        nerrors += test_copy_dataset_multi_ohdr_chunks(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
        nerrors += test_copy_dataset_multi_ohdr_chunks(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

        nerrors += test_copy_dataset_attr_named_dtype(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        nerrors += test_copy_group_empty(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_root_group(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_group(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_group_deep(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_group_loop(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_group_wide_loop(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_group_links(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        /* Test with dataset opened in the file or not */
        nerrors += test_copy_soft_link(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
        nerrors += test_copy_soft_link(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

        nerrors += test_copy_ext_link(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_exist(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        nerrors += test_copy_path(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        nerrors += test_copy_named_datatype_attr_self(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        nerrors += test_copy_attr_crt_order(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_WITHOUT_ATTR_FLAG, false,
                                    "H5Ocopy(): without attributes");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, 0, true,
                                    "H5Ocopy(): with missing groups");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_EXPAND_SOFT_LINK_FLAG,
                                    false, "H5Ocopy(): expand soft link");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_EXPAND_EXT_LINK_FLAG,
                                    false, "H5Ocopy(): expand external link");

        /* Splitter VFD currently has external link-related bugs */
        if (strcmp(driver_name, "splitter")) {
            nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl,
                                        H5O_COPY_EXPAND_SOFT_LINK_FLAG | H5O_COPY_EXPAND_EXT_LINK_FLAG, false,
                                        "H5Ocopy(): expand soft and external links");
        }

        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_SHALLOW_HIERARCHY_FLAG,
                                    false, "H5Ocopy(): shallow group copy");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_EXPAND_REFERENCE_FLAG,
                                    false, "H5Ocopy(): expand object reference");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl, H5O_COPY_PRESERVE_NULL_FLAG,
                                    false, "H5Ocopy(): preserve NULL messages");
        nerrors += test_copy_option(fcpl_src, fcpl_dst, src_fapl, dst_fapl,
                                    H5O_COPY_WITHOUT_ATTR_FLAG | H5O_COPY_PRESERVE_NULL_FLAG, true,
                                    "H5Ocopy(): preserve NULL messages");
        nerrors += test_copy_dataset_open(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

        /* Tests that do not use attributes and do not need to be tested
         * multiple times for different attribute configurations */
        if (configuration < CONFIG_DENSE) {
            unsigned reopen;

            nerrors += test_copy_named_datatype(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_named_datatype_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_named_datatype_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            /* Loop over reopening the file */
            for (reopen = false; reopen <= true; reopen++) {
                nerrors += test_copy_committed_datatype_merge(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);

                if (same_file)
                    nerrors += test_copy_committed_datatype_merge_same_file(fcpl_src, src_fapl, reopen);

                nerrors += test_copy_committed_dt_merge_sugg(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_committed_dt_merge_attr(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);

                /* tests added for merging committed datatypes + suggestions + callback */
                nerrors += test_copy_cdt_hier_merge(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_cdt_merge_cdt(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_cdt_merge_suggs(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_cdt_merge_dset_suggs(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_cdt_merge_all_suggs(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_set_mcdt_search_cb(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
                nerrors += test_copy_set_get_mcdt_search_cb(fcpl_src, fcpl_dst, src_fapl, dst_fapl, reopen);
            } /* end for */

            nerrors += test_copy_dataset_external(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_named_dtype(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_named_dtype_hier(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_named_dtype_hier_outside(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            nerrors += test_copy_dataset_contig_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_chunked_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_compact_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_compressed_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_attribute_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_attribute_compound_vlstr(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_compact_named_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_contig_named_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            /* Test with dataset opened in the file or not */
            nerrors += test_copy_dataset_chunked_named_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
            nerrors += test_copy_dataset_chunked_named_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

            nerrors += test_copy_dataset_compressed_named_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_compact_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            /* Test with dataset opened in the file or not */
            nerrors += test_copy_dataset_contig_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
            nerrors += test_copy_dataset_contig_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

            nerrors += test_copy_dataset_chunked_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            /* Test with dataset opened in the file or not */
            nerrors += test_copy_dataset_compressed_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, false);
            nerrors += test_copy_dataset_compressed_vl_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl, true);

            nerrors += test_copy_dataset_contig_cmpd_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_chunked_cmpd_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_dataset_compact_cmpd_vl(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            nerrors += test_copy_same_file_named_datatype(fcpl_src, src_fapl);

            if (driver_is_default_compatible) {
                /* Test with dataset opened in the file or not */
                nerrors += test_copy_old_layout(fcpl_dst, dst_fapl, false);
                nerrors += test_copy_old_layout(fcpl_dst, dst_fapl, true);
            }

            /* Test with dataset opened in the file or not */
            nerrors += test_copy_null_ref(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
            nerrors += test_copy_null_ref_open(fcpl_src, fcpl_dst, src_fapl, dst_fapl);

            nerrors += test_copy_cdt_v1_header_bug(fcpl_src, src_fapl);

            nerrors += test_copy_iterate(fcpl_src, fcpl_dst, src_fapl, dst_fapl);
        } /* end if */

        /* TODO: not implemented
                nerrors += test_copy_mount(src_fapl);
        */
    } /* end for */

    /* Reset file token checking info */
    token_reset();

    /* Verify symbol table messages are cached */
    nerrors += (h5_verify_cached_stabs(FILENAME, fapl) < 0 ? 1 : 0);

    /* Results */
    if (nerrors) {
        printf("***** %d OBJECT COPY TEST%s FAILED! *****\n", nerrors, (1 == nerrors ? "" : "S"));
        exit(EXIT_FAILURE);
    } /* end if */

    puts("All object copying tests passed.");

    /* close property list.
     * NOTE: if this property list is not closed and the test is
     *          run with the split or multi driver, an interesting
     *          problem is exposed in the property list shutdown code.
     *
     *          Namely, since the split/multi driver copies property
     *          lists for internal use, there's a (high) chance that
     *          leaving the FAPL open and having the library's shutdown
     *          code close it will cause the underlying property lists
     *          to be cleaned up first, causing the actual property list
     *          close operation to fail (since it won't be able to close
     *          the already closed underlying property list).
     *
     *          The could be addressed by converting the split/multi to
     *          use non-public API routines, or putting some way into the
     *          public H5I routines to indicate ordering at shutdown.
     *
     *          For now, we just make certain to close the property list.
     *          (QAK - 2016/04/06)
     *
     */
    H5Pclose(fapl2);

    h5_cleanup(FILENAME, fapl);

    exit(EXIT_SUCCESS);

error:
    exit(EXIT_FAILURE);
} /* main */
