#!/usr/bin/env pytest
# -*- coding: utf-8 -*-
###############################################################################
# $Id$
#
# Project:  GDAL/OGR Test Suite
# Purpose:  GML driver testing.
# Author:   Frank Warmerdam <warmerdam@pobox.com>
#
###############################################################################
# Copyright (c) 2006, Frank Warmerdam <warmerdam@pobox.com>
# Copyright (c) 2008-2014, Even Rouault <even dot rouault at spatialys.com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################

import os
import shutil
import sys

import gdaltest
import ogrtest
import pytest

from osgeo import gdal, ogr, osr

pytestmark = pytest.mark.require_driver("GML")

###############################################################################
@pytest.fixture(autouse=True, scope="module")
def module_disable_exceptions():
    with gdaltest.disable_exceptions():
        yield


###############################################################################
@pytest.fixture(autouse=True, scope="module")
def startup_and_cleanup():

    files_before = set(gdal.ReadDirRecursive("data/gml"))
    opts_before = gdal.GetConfigOptions()

    if ogr.Open("data/gml/ionic_wfs.gml") is None:
        pytest.skip("GML read support not available")

    yield

    files_after = set(gdal.ReadDirRecursive("data/gml"))
    opts_after = gdal.GetConfigOptions()

    assert files_after == files_before
    assert opts_after == opts_before


@pytest.fixture(scope="module")
def have_gml_validation():

    gdaltest.download_or_skip(
        "http://schemas.opengis.net/SCHEMAS_OPENGIS_NET.zip", "SCHEMAS_OPENGIS_NET.zip"
    )

    ds = ogr.Open("data/gml/expected_gml_gml3.gml")

    with gdal.config_option(
        "GDAL_OPENGIS_SCHEMAS", "/vsizip/./tmp/cache/SCHEMAS_OPENGIS_NET.zip"
    ):
        with ds.ExecuteSQL("SELECT ValidateSchema()") as lyr:

            feat = lyr.GetNextFeature()
            val = feat.GetFieldAsInteger(0)
            feat = None

            if val == 0:
                assert (
                    gdal.GetLastErrorMsg().find(
                        "not implemented due to missing libxml2 support"
                    )
                    != -1
                )

                return False

    return True


###############################################################################
# Test reading geometry and attribute from ionic wfs gml file.
#


@pytest.mark.parametrize("use_gfs", (True, False))
def test_ogr_gml_1(tmp_path, use_gfs):

    shutil.copy("data/gml/ionic_wfs.gml", tmp_path)
    if use_gfs:
        shutil.copy("data/gml/ionic_wfs.gfs", tmp_path)

    gml_ds = ogr.Open(tmp_path / "ionic_wfs.gml")

    assert gml_ds.GetLayerCount() == 1, "wrong number of layers"

    lyr = gml_ds.GetLayerByName("GEM")

    assert lyr.GetDataset().GetDescription() == gml_ds.GetDescription()

    feat = lyr.GetNextFeature()

    assert feat.GetField("Name") == "Aartselaar", "Wrong name field value"

    wkt = "POLYGON ((44038 511549,44015 511548,43994 511522,43941 511539,43844 511514,43754 511479,43685 511521,43594 511505,43619 511452,43645 511417,4363 511387,437 511346,43749 511298,43808 511229,43819 511205,4379 511185,43728 511167,43617 511175,43604 511151,43655 511125,43746 511143,43886 511154,43885 511178,43928 511186,43977 511217,4404 511223,44008 511229,44099 51131,44095 511335,44106 51135,44127 511379,44124 511435,44137 511455,44105 511467,44098 511484,44086 511499,4407 511506,44067 511535,44038 511549))"

    ogrtest.check_feature_geometry(feat, wkt)

    feat = lyr.GetNextFeature()
    assert feat is None, "got unexpected feature."


###############################################################################
# Similar test for RNF style line data.


def test_ogr_gml_3():

    gml_ds = ogr.Open("data/gml/rnf_eg.gml")

    assert gml_ds.GetLayerCount() == 1, "wrong number of layers"

    lyr = gml_ds.GetLayerByName("RoadSegment")
    feat = lyr.GetNextFeature()

    assert feat.GetField("ngd_id") == 817792, "Wrong ngd_id field value"

    assert feat.GetField("type") == "HWY", "Wrong type field value"

    wkt = "LINESTRING (-63.500411040289066 46.240122507771368,-63.501009714909742 46.240344881690326,-63.502170462373471 46.241041855639622,-63.505862621395394 46.24195250605576,-63.506719184531178 46.242002742901576,-63.507197272602212 46.241931577811606,-63.508403092799554 46.241752283460158,-63.509946573455622 46.241745397977233)"

    ogrtest.check_feature_geometry(feat, wkt)

    feat = lyr.GetNextFeature()
    assert feat is None, "got unexpected feature."


###############################################################################
# Test of read GML file with UTF-8 BOM indicator.
# Test also support for nested GML elements (#3680)


def test_ogr_gml_4(tmp_path):

    shutil.copy("data/gml/bom.gml", tmp_path)

    gml_ds = ogr.Open(tmp_path / "bom.gml")

    assert gml_ds.GetLayerCount() == 1, "wrong number of layers"

    lyr = gml_ds.GetLayerByName("CartographicText")

    assert lyr.GetFeatureCount() == 3, "wrong number of features"

    # Test 1st feature
    feat = lyr.GetNextFeature()

    assert feat.GetField("featureCode") == 10198, "Wrong featureCode field value"

    assert feat.GetField("anchorPosition") == 8, "Wrong anchorPosition field value"

    wkt = "POINT (347243.85 461299.5)"

    ogrtest.check_feature_geometry(feat, wkt)

    # Test 2nd feature
    feat = lyr.GetNextFeature()

    assert feat.GetField("featureCode") == 10069, "Wrong featureCode field value"

    wkt = "POINT (347251.45 461250.85)"

    ogrtest.check_feature_geometry(feat, wkt)


###############################################################################
# Test of read GML file that triggeered bug #2349


def test_ogr_gml_5(tmp_path):

    shutil.copy("data/gml/ticket_2349_test_1.gml", tmp_path)

    gml_ds = ogr.Open(tmp_path / "ticket_2349_test_1.gml")

    lyr = gml_ds.GetLayerByName("MyPolyline")

    lyr.SetAttributeFilter("height > 300")

    lyr.GetNextFeature()


###############################################################################
# Test of various FIDs (various prefixes and lengths) (Ticket#1017)


def test_ogr_gml_6(tmp_path):

    files = ["test_point1.gml", "test_point2.gml", "test_point3.gml", "test_point4.gml"]

    fids = []

    for filename in files:
        shutil.copy(os.path.join("data/gml", filename), tmp_path)

        fids[:] = []
        gml_ds = ogr.Open(tmp_path / filename)
        lyr = gml_ds.GetLayer()
        feat = lyr.GetNextFeature()
        while feat is not None:
            if (feat.GetFID() < 0) or (feat.GetFID() in fids):
                pytest.fail("Wrong FID value")
            fids.append(feat.GetFID())
            feat = lyr.GetNextFeature()
        gml_ds = None


###############################################################################
# Test of colon terminated prefixes for attribute values (Ticket#2493)


def test_ogr_gml_7():

    with gdal.config_option("GML_EXPOSE_FID", "FALSE"):
        gml_ds = ogr.Open("data/gml/test_point.gml")
    lyr = gml_ds.GetLayer()
    ldefn = lyr.GetLayerDefn()

    # Test fix for #2969
    assert lyr.GetFeatureCount() == 5, "Bad feature count"

    try:
        ldefn.GetFieldDefn(0).GetFieldTypeName
    except Exception:
        pytest.skip()

    assert (
        ldefn.GetFieldDefn(0).GetFieldTypeName(ldefn.GetFieldDefn(0).GetType())
        == "Real"
    )
    assert (
        ldefn.GetFieldDefn(1).GetFieldTypeName(ldefn.GetFieldDefn(1).GetType())
        == "Integer"
    )
    assert (
        ldefn.GetFieldDefn(2).GetFieldTypeName(ldefn.GetFieldDefn(2).GetType())
        == "String"
    )


###############################################################################
# Test a GML file with some non-ASCII UTF-8 content that triggered a bug (Ticket#2948)


def test_ogr_gml_8(tmp_path):

    shutil.copy("data/gml/utf8.gml", tmp_path)

    gml_ds = ogr.Open(tmp_path / "utf8.gml")
    lyr = gml_ds.GetLayer()
    feat = lyr.GetNextFeature()
    assert feat.GetFieldAsString("name") == "Āliamanu"


###############################################################################
# Test writing invalid UTF-8 content in a GML file (ticket #2971)


def test_ogr_gml_9(tmp_path):

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(tmp_path / "broken_utf8.gml")
    lyr = ds.CreateLayer("test")
    lyr.CreateField(ogr.FieldDefn("test", ogr.OFTString))

    dst_feat = ogr.Feature(lyr.GetLayerDefn())
    dst_feat.SetFieldBinaryFromHexString("test", "80626164")  # \x80bad'

    # Avoid the warning
    with gdal.quiet_errors():
        ret = lyr.CreateFeature(dst_feat)

    assert ret == 0, "CreateFeature failed."

    ds = None

    ds = ogr.Open(tmp_path / "broken_utf8.gml")
    lyr = ds.GetLayerByName("test")
    feat = lyr.GetNextFeature()
    assert feat.GetField("test") == "?bad", "Unexpected content."
    ds = None


###############################################################################
# Test writing different data types in a GML file (ticket #2857)
# TODO: Add test for other data types as they are added to the driver.


def test_ogr_gml_10(tmp_path):

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(tmp_path / "fields.gml")
    lyr = ds.CreateLayer("test")
    field_defn = ogr.FieldDefn("string", ogr.OFTString)
    field_defn.SetWidth(100)
    lyr.CreateField(field_defn)
    field_defn = ogr.FieldDefn("real", ogr.OFTReal)
    field_defn.SetWidth(4)
    field_defn.SetPrecision(2)
    lyr.CreateField(field_defn)
    lyr.CreateField(ogr.FieldDefn("float", ogr.OFTReal))
    field_defn = ogr.FieldDefn("integer", ogr.OFTInteger)
    field_defn.SetWidth(5)
    lyr.CreateField(field_defn)
    lyr.CreateField(ogr.FieldDefn("date", ogr.OFTDate))
    lyr.CreateField(ogr.FieldDefn("time", ogr.OFTTime))
    lyr.CreateField(ogr.FieldDefn("datetime", ogr.OFTDateTime))

    dst_feat = ogr.Feature(lyr.GetLayerDefn())
    dst_feat.SetField("string", "test string of length 24")
    dst_feat.SetField("real", 12.34)
    dst_feat.SetField("float", 1234.5678)
    dst_feat.SetField("integer", "1234")
    dst_feat.SetField("date", "2019/11/06")
    dst_feat.SetField("time", "12:34:56")
    dst_feat.SetField("datetime", "2019/11/06 12:34:56+00")

    ret = lyr.CreateFeature(dst_feat)

    assert ret == 0, "CreateFeature failed."

    ds = None

    ds = ogr.Open(tmp_path / "fields.gml")
    lyr = ds.GetLayerByName("test")
    feat = lyr.GetNextFeature()

    assert (
        feat.GetFieldDefnRef(feat.GetFieldIndex("string")).GetType() == ogr.OFTString
    ), "String type is reported wrong. Got " + str(
        feat.GetFieldDefnRef(feat.GetFieldIndex("string")).GetType()
    )
    assert (
        feat.GetFieldDefnRef(feat.GetFieldIndex("real")).GetType() == ogr.OFTReal
    ), "Real type is reported wrong. Got " + str(
        feat.GetFieldDefnRef(feat.GetFieldIndex("real")).GetType()
    )
    assert (
        feat.GetFieldDefnRef(feat.GetFieldIndex("float")).GetType() == ogr.OFTReal
    ), "Float type is not reported as OFTReal. Got " + str(
        feat.GetFieldDefnRef(feat.GetFieldIndex("float")).GetType()
    )
    assert (
        feat.GetFieldDefnRef(feat.GetFieldIndex("integer")).GetType() == ogr.OFTInteger
    ), "Integer type is reported wrong. Got " + str(
        feat.GetFieldDefnRef(feat.GetFieldIndex("integer")).GetType()
    )
    assert feat.GetFieldDefnRef(feat.GetFieldIndex("date")).GetType() == ogr.OFTDate
    assert feat.GetFieldDefnRef(feat.GetFieldIndex("time")).GetType() == ogr.OFTTime
    assert (
        feat.GetFieldDefnRef(feat.GetFieldIndex("datetime")).GetType()
        == ogr.OFTDateTime
    )

    assert (
        feat.GetField("string") == "test string of length 24"
    ), "Unexpected string content." + feat.GetField("string")
    assert feat.GetFieldAsDouble("real") == 12.34, "Unexpected real content."
    assert feat.GetField("float") == 1234.5678, "Unexpected float content."
    assert feat.GetField("integer") == 1234, "Unexpected integer content."
    assert feat.GetField("date") == "2019/11/06"
    assert feat.GetField("time") == "12:34:56"
    assert feat.GetField("datetime") == "2019/11/06 12:34:56+00"

    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("string"))
        .GetWidth()
        == 100
    ), "Unexpected width of string field."
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("real"))
        .GetWidth()
        == 4
    ), "Unexpected width of real field."
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("real"))
        .GetPrecision()
        == 2
    ), "Unexpected precision of real field."
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("integer"))
        .GetWidth()
        == 5
    ), "Unexpected width of integer field."
    ds = None


###############################################################################
# Test reading a geometry element specified with <GeometryElementPath>


def test_ogr_gml_11():

    # Make sure the .gfs file is more recent that the .gml one
    try:
        gml_mtime = os.stat("data/gml/testgeometryelementpath.gml").st_mtime
        gfs_mtime = os.stat("data/gml/testgeometryelementpath.gfs").st_mtime
        touch_gfs = gfs_mtime <= gml_mtime
    except Exception:
        touch_gfs = True
    if touch_gfs:
        print("Touching .gfs file")
        f = open("data/gml/testgeometryelementpath.gfs", "rb+")
        data = f.read(1)
        f.seek(0, 0)
        f.write(data)
        f.close()

    ds = ogr.Open("data/gml/testgeometryelementpath.gml")
    lyr = ds.GetLayer(0)
    assert (
        lyr.GetGeometryColumn() == "location1container|location1"
    ), "did not get expected geometry column name"

    feat = lyr.GetNextFeature()
    assert (
        feat.GetField("attrib1") == "attrib1_value"
    ), "did not get expected value for attrib1"
    assert (
        feat.GetField("attrib2") == "attrib2_value"
    ), "did not get expected value for attrib2"
    geom = feat.GetGeometryRef()
    assert geom.ExportToWkt() == "POINT (3 50)", "did not get expected geometry"
    ds = None


###############################################################################
# Test reading a virtual GML file


def test_ogr_gml_12():

    ds = ogr.Open(
        "/vsizip/data/gml/testgeometryelementpath.zip/testgeometryelementpath.gml"
    )
    lyr = ds.GetLayer(0)
    assert (
        lyr.GetGeometryColumn() == "location1container|location1"
    ), "did not get expected geometry column name"

    feat = lyr.GetNextFeature()
    assert (
        feat.GetField("attrib1") == "attrib1_value"
    ), "did not get expected value for attrib1"
    assert (
        feat.GetField("attrib2") == "attrib2_value"
    ), "did not get expected value for attrib2"
    geom = feat.GetGeometryRef()
    assert geom.ExportToWkt() == "POINT (3 50)", "did not get expected geometry"
    ds = None


###############################################################################
# Test reading GML with StringList, IntegerList and RealList fields


def test_ogr_gml_13(tmp_path):

    shutil.copy("data/gml/testlistfields.gml", tmp_path)

    for _ in range(2):
        ds = ogr.Open(tmp_path / "testlistfields.gml")
        lyr = ds.GetLayer(0)
        feat = lyr.GetNextFeature()
        assert feat.GetFieldAsStringList(feat.GetFieldIndex("attrib1")) == [
            "value1",
            "value2",
        ], "did not get expected value for attrib1"
        assert (
            feat.GetField(feat.GetFieldIndex("attrib2")) == "value3"
        ), "did not get expected value for attrib2"
        assert feat.GetFieldAsIntegerList(feat.GetFieldIndex("attrib3")) == [
            4,
            5,
        ], "did not get expected value for attrib3"
        assert feat.GetFieldAsDoubleList(feat.GetFieldIndex("attrib4")) == [
            6.1,
            7.1,
        ], "did not get expected value for attrib4"
        ds = None


###############################################################################
# Test xlink resolution


def test_ogr_gml_14():

    # We need CURL for xlink resolution, and a sign that Curl is available
    # is the availability of the WMS driver
    gdaltest.wms_drv = gdal.GetDriverByName("WMS")
    if gdaltest.wms_drv is None:
        pytest.skip()

    if (
        gdaltest.gdalurlopen("http://download.osgeo.org/gdal/data/gml/xlink3.gml")
        is None
    ):
        pytest.skip("cannot open URL")

    files = ["xlink1.gml", "xlink2.gml", "expected1.gml", "expected2.gml"]
    for f in files:
        gdaltest.download_or_skip("http://download.osgeo.org/gdal/data/gml/" + f, f)

    with gdal.config_options(
        {
            "GML_SKIP_RESOLVE_ELEMS": "NONE",
            "GML_SAVE_RESOLVED_TO": "tmp/cache/xlink1resolved.gml",
        }
    ):
        with gdal.quiet_errors():
            gml_ds = ogr.Open("tmp/cache/xlink1.gml")
    gml_ds = None

    with gdal.config_options(
        {
            "GML_SKIP_RESOLVE_ELEMS": "gml:directedNode",
            "GML_SAVE_RESOLVED_TO": "tmp/cache/xlink2resolved.gml",
        }
    ):
        gml_ds = ogr.Open("tmp/cache/xlink1.gml")
        del gml_ds

    try:
        fp = open("tmp/cache/xlink1resolved.gml", "r")
        text = fp.read()
        fp.close()
        os.remove("tmp/cache/xlink1resolved.gml")
        fp = open("tmp/cache/expected1.gml", "r")
        expectedtext = fp.read()
        fp.close()
    except (IOError, OSError):
        pytest.fail()

    assert text == expectedtext, "Problem with file 1"

    try:
        fp = open("tmp/cache/xlink2resolved.gml", "r")
        text = fp.read()
        fp.close()
        os.remove("tmp/cache/xlink2resolved.gml")
        fp = open("tmp/cache/expected2.gml", "r")
        expectedtext = fp.read()
        fp.close()
    except (IOError, OSError):
        pytest.fail()

    assert text == expectedtext, "Problem with file 2"


###############################################################################
# Run test_ogrsf


def test_ogr_gml_15():

    import test_cli_utilities

    if test_cli_utilities.get_test_ogrsf_path() is None:
        pytest.skip()

    ret = gdaltest.runexternal(
        test_cli_utilities.get_test_ogrsf_path() + " -ro data/gml/test_point.gml"
    )

    assert ret.find("INFO") != -1 and ret.find("ERROR") == -1


###############################################################################
# Read CityGML generic attributes and reading 3D geometries by default


def test_ogr_gml_city_gml(tmp_path):

    shutil.copy("data/gml/citygml.gml", tmp_path)

    ds = ogr.Open(tmp_path / "citygml.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetGeomType() == ogr.wkbMultiPolygon25D
    feat = lyr.GetNextFeature()

    assert feat.GetField("Name_") == "aname"
    assert feat.GetField("a_int_attr") == 2
    assert feat.GetField("a_double_attr") == 3.45
    assert (
        feat.GetGeometryRef().ExportToIsoWkt()
        == "MULTIPOLYGON Z (((0 0 0,0.0 0.5 0,0 1 0,1 1 0,1 0 0,0 0 0)))"
    )
    ds = None


###############################################################################
# Test reading CityGML of Project PLATEAU


def test_gml_read_compound_crs_lat_long(tmp_path):

    shutil.copy("data/gml/citygml_compound_crs.gml", tmp_path)

    # open CityGML file
    gml = ogr.Open(tmp_path / "citygml_compound_crs.gml")

    # check number of layers
    assert gml.GetLayerCount() == 1, "Wrong layer count"

    lyr = gml.GetLayer(0)
    sr = osr.SpatialReference()
    sr.ImportFromEPSG(6668)  # JGD2011
    assert sr.IsSame(
        lyr.GetSpatialRef(), options=["IGNORE_DATA_AXIS_TO_SRS_AXIS_MAPPING=YES"]
    ), "Wrong SRS"

    wkt = "POLYHEDRALSURFACE Z (((139.812484938717 35.7092130413279 0.15,139.812489071491 35.7091641446533 0.15,139.812444202746 35.7091610722245 0.15,139.812439721473 35.7092112956502 0.15,139.812436111402 35.7092517484017 0.15,139.812481422309 35.7092546406366 0.15,139.812484938717 35.7092130413279 0.15)),((139.812484938717 35.7092130413279 0.15,139.812481422309 35.7092546406366 0.15,139.812481422309 35.7092546406366 12.08,139.812484938717 35.7092130413279 12.08,139.812484938717 35.7092130413279 0.15)),((139.812481422309 35.7092546406366 0.15,139.812436111402 35.7092517484017 0.15,139.812436111402 35.7092517484017 12.08,139.812481422309 35.7092546406366 12.08,139.812481422309 35.7092546406366 0.15)),((139.812436111402 35.7092517484017 0.15,139.812439721473 35.7092112956502 0.15,139.812439721473 35.7092112956502 12.08,139.812436111402 35.7092517484017 12.08,139.812436111402 35.7092517484017 0.15)),((139.812439721473 35.7092112956502 0.15,139.812444202746 35.7091610722245 0.15,139.812444202746 35.7091610722245 12.08,139.812439721473 35.7092112956502 12.08,139.812439721473 35.7092112956502 0.15)),((139.812444202746 35.7091610722245 0.15,139.812489071491 35.7091641446533 0.15,139.812489071491 35.7091641446533 12.08,139.812444202746 35.7091610722245 12.08,139.812444202746 35.7091610722245 0.15)),((139.812489071491 35.7091641446533 0.15,139.812484938717 35.7092130413279 0.15,139.812484938717 35.7092130413279 12.08,139.812489071491 35.7091641446533 12.08,139.812489071491 35.7091641446533 0.15)),((139.812484938717 35.7092130413279 12.08,139.812481422309 35.7092546406366 12.08,139.812436111402 35.7092517484017 12.08,139.812439721473 35.7092112956502 12.08,139.812444202746 35.7091610722245 12.08,139.812489071491 35.7091641446533 12.08,139.812484938717 35.7092130413279 12.08)))"

    # check the first feature
    feat = lyr.GetNextFeature()
    ogrtest.check_feature_geometry(feat, wkt)


###############################################################################
# Read CityGML Lod2 with xlink:href in the gml:Solid


def test_ogr_gml_city_gml_lod2_with_xlink_href(tmp_path):

    shutil.copy("data/gml/citygml_lod2_713_5322.xml", tmp_path)

    gdal.ErrorReset()
    ds = ogr.Open(tmp_path / "citygml_lod2_713_5322.xml")
    lyr = ds.GetLayer(0)
    assert gdal.GetLastErrorMsg() == ""
    assert lyr.GetSpatialRef().IsProjected()
    assert lyr.GetGeomType() == ogr.wkbPolyhedralSurfaceZ

    feat = lyr.GetNextFeature()

    # print(feat.GetGeometryRef().ExportToIsoWkt())
    wkt = "POLYHEDRALSURFACE Z (((713235.347 5322980.429 584.22,713235.909 5322980.781 584.22,713237.154 5322981.561 584.22,713237.154 5322981.561 587.655,713235.909 5322980.781 588.03,713235.347 5322980.429 587.86,713235.347 5322980.429 584.22)),((713236.374 5322982.678 587.658,713237.154 5322981.561 587.655,713237.154 5322981.561 584.22,713236.374 5322982.678 584.22,713234.768 5322984.981 584.22,713234.768 5322984.981 587.666,713236.374 5322982.678 587.658)),((713234.612 5322981.452 584.22,713235.347 5322980.429 584.22,713235.347 5322980.429 587.86,713234.612 5322981.452 587.853,713234.612 5322981.452 588.21,713234.585 5322981.49 588.21,713234.585 5322981.49 584.22,713234.612 5322981.452 584.22)),((713229.269 5322983.856 587.663,713231.399 5322985.337 588.33,713233.571 5322986.847 587.65,713235.231 5322988.002 587.13,713235.231 5322988.002 584.22,713233.571 5322986.847 584.22,713231.399 5322985.337 584.22,713229.269 5322983.856 584.22,713229.269 5322983.856 587.663)),((713235.231 5322988.002 584.22,713235.231 5322988.002 587.13,713236.493 5322986.18 587.126,713236.493 5322986.18 584.22,713235.231 5322988.002 584.22)),((713232.071 5322979.751 584.22,713232.071 5322979.751 587.663,713229.269 5322983.856 587.663,713229.269 5322983.856 584.22,713232.071 5322979.751 584.22)),((713235.909 5322980.781 584.22,713235.347 5322980.429 584.22,713234.612 5322981.452 584.22,713234.585 5322981.49 584.22,713234.205 5322981.227 584.22,713232.071 5322979.751 584.22,713229.269 5322983.856 584.22,713231.399 5322985.337 584.22,713233.571 5322986.847 584.22,713235.231 5322988.002 584.22,713236.493 5322986.18 584.22,713234.82 5322985.017 584.22,713234.768 5322984.981 584.22,713236.374 5322982.678 584.22,713237.154 5322981.561 584.22,713235.909 5322980.781 584.22)),((713232.071 5322979.751 584.22,713234.205 5322981.227 584.22,713234.585 5322981.49 584.22,713234.585 5322981.49 588.21,713234.205 5322981.227 588.33,713232.071 5322979.751 587.663,713232.071 5322979.751 584.22)),((713235.181 5322981.849 588.032,713234.612 5322981.452 588.21,713234.612 5322981.452 587.853,713235.181 5322981.849 588.032)),((713235.347 5322980.429 587.86,713235.909 5322980.781 588.03,713235.181 5322981.849 588.032,713234.612 5322981.452 587.853,713235.347 5322980.429 587.86)),((713234.768 5322984.981 584.22,713234.82 5322985.017 584.22,713236.493 5322986.18 584.22,713236.493 5322986.18 587.126,713234.82 5322985.017 587.65,713234.768 5322984.981 587.666,713234.768 5322984.981 584.22)),((713234.205 5322981.227 588.33,713234.585 5322981.49 588.21,713234.612 5322981.452 588.21,713235.181 5322981.849 588.032,713235.909 5322980.781 588.03,713237.154 5322981.561 587.655,713236.374 5322982.678 587.658,713234.768 5322984.981 587.666,713234.82 5322985.017 587.65,713236.493 5322986.18 587.126,713235.231 5322988.002 587.13,713233.571 5322986.847 587.65,713231.399 5322985.337 588.33,713234.205 5322981.227 588.33)),((713232.071 5322979.751 587.663,713234.205 5322981.227 588.33,713231.399 5322985.337 588.33,713229.269 5322983.856 587.663,713232.071 5322979.751 587.663)))"
    ogrtest.check_feature_geometry(feat, wkt)

    feat = lyr.GetNextFeature()
    assert not feat.GetGeometryRef().IsEmpty()

    ds = None


###############################################################################
# Read layer SRS for WFS 1.0.0 return


def test_ogr_gml_17(tmp_path):

    shutil.copy("data/gml/gnis_pop_100.gml", tmp_path)

    ds = ogr.Open(tmp_path / "gnis_pop_100.gml")
    lyr = ds.GetLayer(0)

    sr = lyr.GetSpatialRef()
    got_wkt = sr.ExportToWkt()
    assert got_wkt.find('GEOGCS["WGS 84"') != -1, "did not get expected SRS"

    assert lyr.GetExtent() == (-80.17, 76.58, -13.32, 51.0)

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POINT (2.09 34.12)", "did not get expected geometry"


###############################################################################
# Read layer SRS for WFS 1.1.0 return


def test_ogr_gml_18(tmp_path):

    shutil.copy("data/gml/gnis_pop_110.gml", tmp_path)

    ds = ogr.Open(tmp_path / "gnis_pop_110.gml")
    lyr = ds.GetLayer(0)
    sr = lyr.GetSpatialRef()
    got_wkt = sr.ExportToWkt()
    assert got_wkt.find('GEOGCS["WGS 84"') != -1, "did not get expected SRS"
    assert sr.GetDataAxisToSRSAxisMapping() == [2, 1]

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POINT (2.09 34.12)", "did not get expected geometry"


###############################################################################
# Read layer SRS for WFS 1.1.0 return, but without trying to restore
# (long, lat) order. So we should get EPSGA:4326 and (lat, long) order


def test_ogr_gml_19(tmp_path):

    shutil.copy("data/gml/gnis_pop_110.gml", tmp_path)

    with gdal.config_option("GML_INVERT_AXIS_ORDER_IF_LAT_LONG", "NO"):
        ds = ogr.Open(tmp_path / "gnis_pop_110.gml")

    lyr = ds.GetLayer(0)
    sr = lyr.GetSpatialRef()
    got_wkt = sr.ExportToWkt()
    assert 'GEOGCS["WGS 84"' in got_wkt, "did not get expected SRS"
    assert sr.GetDataAxisToSRSAxisMapping() == [1, 2]

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POINT (34.12 2.09)", "did not get expected geometry"


###############################################################################
# Test parsing a .xsd where the type definition is before its reference


def test_ogr_gml_20(tmp_path):

    for ext in ("gml", "xsd"):
        shutil.copy(f"data/gml/archsites.{ext}", tmp_path)

    ds = ogr.Open(tmp_path / "archsites.gml")
    lyr = ds.GetLayer(0)
    ldefn = lyr.GetLayerDefn()

    try:
        ldefn.GetFieldDefn(0).GetFieldTypeName
    except Exception:
        pytest.skip()

    idx = ldefn.GetFieldIndex("gml_id")
    assert idx != -1, 'did not get expected column "gml_id"'

    idx = ldefn.GetFieldIndex("cat")
    fddefn = ldefn.GetFieldDefn(idx)
    assert (
        fddefn.GetFieldTypeName(fddefn.GetType()) == "Integer64"
    ), 'did not get expected column type for col "cat"'
    idx = ldefn.GetFieldIndex("str1")
    fddefn = ldefn.GetFieldDefn(idx)
    assert (
        fddefn.GetFieldTypeName(fddefn.GetType()) == "String"
    ), 'did not get expected column type for col "str1"'

    assert (
        lyr.GetGeometryColumn() == "the_geom"
    ), "did not get expected geometry column name"

    assert ldefn.GetGeomType() == ogr.wkbPoint, "did not get expected geometry type"

    ds = None

    assert not os.path.exists(
        tmp_path / "archsites.gfs"
    ), "did not expect .gfs -> XSD parsing failed"


###############################################################################
# Test writing GML3


@pytest.mark.parametrize(
    "frmt,base_filename",
    [
        ("GML3", "expected_gml_gml3"),
        ("GML3Deegree", "expected_gml_gml3degree"),
        ("GML3.2", "expected_gml_gml32"),
    ],
)
def test_ogr_gml_21(tmp_path, frmt, base_filename):

    # Create GML3 file
    sr = osr.SpatialReference()
    sr.ImportFromEPSG(4326)

    filename = tmp_path / f"{base_filename}.gml"
    ds = ogr.GetDriverByName("GML").CreateDataSource(
        filename, options=["FORMAT=" + frmt]
    )
    lyr = ds.CreateLayer("firstlayer", srs=sr)
    lyr.CreateField(ogr.FieldDefn("string_field", ogr.OFTString))

    feat = ogr.Feature(lyr.GetLayerDefn())
    geom = ogr.CreateGeometryFromWkt("POINT (2 49)")
    feat.SetGeometry(geom)
    lyr.CreateFeature(feat)

    feat = ogr.Feature(lyr.GetLayerDefn())
    feat.SetField(0, "foo")
    geom = ogr.CreateGeometryFromWkt("POINT (3 48)")
    feat.SetGeometry(geom)
    lyr.CreateFeature(feat)

    ds = None

    # Reopen the file
    ds = ogr.Open(filename)
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert (
        feat.GetGeometryRef().ExportToWkt() == "POINT (2 49)"
    ), "did not get expected geometry"
    ds = None

    # Test that .gml and .xsd are identical to what is expected
    for ext in (".gml", ".xsd"):
        f1 = open(filename.with_suffix(ext), "rt")
        f2 = open("data/gml/" + f"{base_filename}{ext}", "rt")
        line1 = f1.readline()
        line2 = f2.readline()
        while line1 != "":
            line1 = line1.strip()
            line2 = line2.strip()
            if line1 != line2:
                print(open(filename, "rt").read())
                pytest.fail(f"{ext} file not identical to expected")
            line1 = f1.readline()
            line2 = f2.readline()
        f1.close()
        f2.close()


###############################################################################
# Read a OpenLS DetermineRouteResponse document


def test_ogr_gml_22(tmp_path):

    shutil.copy("data/gml/paris_typical_strike_demonstration.xml", tmp_path)

    ds = ogr.Open(tmp_path / "paris_typical_strike_demonstration.xml")
    lyr = ds.GetLayerByName("RouteGeometry")
    assert lyr is not None, "cannot find RouteGeometry"
    lyr = ds.GetLayerByName("RouteInstruction")
    assert lyr is not None, "cannot find RouteInstruction"
    count = lyr.GetFeatureCount()
    assert count == 9, "did not get expected feature count"

    ds = None


###############################################################################
# Test that use SRS defined in global gml:Envelope if no SRS is set for any
# feature geometry


def test_ogr_gml_23(tmp_path):

    for ext in ("xml", "xsd"):
        shutil.copy(f"data/gml/global_geometry.{ext}", tmp_path)

    # Here we use only the .xml file
    ds = ogr.Open(tmp_path / "global_geometry.xml")

    lyr = ds.GetLayer(0)
    sr = lyr.GetSpatialRef()
    got_wkt = sr.ExportToWkt()
    assert 'GEOGCS["WGS 84"' in got_wkt, "did not get expected SRS"
    assert lyr.GetSpatialRef().GetDataAxisToSRSAxisMapping() == [2, 1]

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POINT (2 49)", "did not get expected geometry"

    extent = lyr.GetExtent()
    assert extent == (2.0, 3.0, 49.0, 50.0), "did not get expected layer extent"


###############################################################################
# Test that use SRS defined in global gml:Envelope if no SRS is set for any
# feature geometry


def test_ogr_gml_24(tmp_path):

    shutil.copy("data/gml/global_geometry.xml", tmp_path)

    # Here we use only the .xml file and the .xsd file
    ds = ogr.Open(tmp_path / "global_geometry.xml")

    lyr = ds.GetLayer(0)

    # Because we read the .xsd, we (currently) don't find the SRS

    # sr = lyr.GetSpatialRef()
    # got_wkt = sr.ExportToWkt()
    # if got_wkt.find('GEOGCS["WGS 84"') == -1 or \
    #   got_wkt.find('AXIS["Latitude",NORTH],AXIS["Longitude",EAST]') != -1:
    #    gdaltest.post_reason('did not get expected SRS')
    #    print(got_wkt)
    #    return 'fail'

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POINT (2 49)", "did not get expected geometry"

    extent = lyr.GetExtent()
    assert extent == (2.0, 3.0, 49.0, 50.0), "did not get expected layer extent"


###############################################################################
# Test fixes for #3934 and #3935


def test_ogr_gml_25(tmp_path):

    if int(gdal.VersionInfo("VERSION_NUM")) < 1900:
        pytest.skip("would crash")

    shutil.copy("data/gml/curveProperty.xml", tmp_path)

    with gdal.config_option("GML_FACE_HOLE_NEGATIVE", "YES"):
        ds = ogr.Open(tmp_path / "curveProperty.xml")

    lyr = ds.GetLayer(0)

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert (
        got_wkt == "POLYGON ((14 21,6 21,6 9,14 9,22 9,22 21,14 21))"
    ), "did not get expected geometry"


###############################################################################
# Test writing and reading 3D geoms (GML2)


def test_ogr_gml_26(tmp_path):

    import test_cli_utilities

    if test_cli_utilities.get_ogr2ogr_path() is None:
        pytest.skip()

    gdaltest.runexternal(
        test_cli_utilities.get_ogr2ogr_path()
        + f" -f GML -dsco FORMAT=GML2 {tmp_path}/ogr_gml_26.gml data/poly.shp -zfield eas_id"
    )

    f = open(tmp_path / "ogr_gml_26.gml", "rt")
    content = f.read()
    f.close()
    assert (
        content.find(
            "<gml:coord><gml:X>478315.53125</gml:X><gml:Y>4762880.5</gml:Y><gml:Z>158</gml:Z></gml:coord>"
        )
        != -1
    )

    ds = ogr.Open(tmp_path / "ogr_gml_26.gml")

    lyr = ds.GetLayer(0)

    assert lyr.GetGeomType() == ogr.wkbPolygon25D

    ds = None


###############################################################################
# Test writing and reading 3D geoms (GML3)


def test_ogr_gml_27(tmp_path):

    import test_cli_utilities

    if test_cli_utilities.get_ogr2ogr_path() is None:
        pytest.skip()

    gdaltest.runexternal(
        test_cli_utilities.get_ogr2ogr_path()
        + f" -f GML {tmp_path}/ogr_gml_27.gml data/poly.shp -zfield eas_id -dsco FORMAT=GML3"
    )

    f = open(tmp_path / "ogr_gml_27.gml", "rt")
    content = f.read()
    f.close()
    assert (
        content.find("<gml:lowerCorner>478315.53125 4762880.5 158</gml:lowerCorner>")
        != -1
    )

    ds = ogr.Open(tmp_path / "ogr_gml_27.gml")

    lyr = ds.GetLayer(0)

    assert lyr.GetGeomType() == ogr.wkbPolygon25D

    ds = None


###############################################################################
# Test writing and reading layers of type wkbNone (#4154)


def test_ogr_gml_28(tmp_path):

    import test_cli_utilities

    if test_cli_utilities.get_ogr2ogr_path() is None:
        pytest.skip()

    gdaltest.runexternal(
        test_cli_utilities.get_ogr2ogr_path()
        + f" -f GML {tmp_path}/ogr_gml_28.gml data/idlink.dbf"
    )

    # Try with .xsd
    ds = ogr.Open(tmp_path / "ogr_gml_28.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetGeomType() == ogr.wkbNone
    ds = None

    os.unlink(tmp_path / "ogr_gml_28.xsd")

    ds = ogr.Open(tmp_path / "ogr_gml_28.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetGeomType() == ogr.wkbNone
    ds = None

    # Try with .gfs
    ds = ogr.Open(tmp_path / "ogr_gml_28.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetGeomType() == ogr.wkbNone
    ds = None


###############################################################################
# Test reading FME GMLs


def test_ogr_gml_29():

    ds = ogr.Open("data/gml/testfmegml.gml")

    expected_results = [
        [ogr.wkbMultiPoint, "MULTIPOINT (2 49)"],
        [ogr.wkbMultiPolygon, "MULTIPOLYGON (((2 49,3 49,3 50,2 50,2 49)))"],
        [ogr.wkbMultiLineString, "MULTILINESTRING ((2 49,3 50))"],
    ]

    for j, expected_result in enumerate(expected_results):
        lyr = ds.GetLayer(j)
        assert lyr.GetGeomType() == expected_result[0], (
            "layer %d, did not get expected layer geometry type" % j
        )
        for _ in range(2):
            feat = lyr.GetNextFeature()
            geom = feat.GetGeometryRef()
            got_wkt = geom.ExportToWkt()
            assert got_wkt == expected_result[1], (
                "layer %d, did not get expected geometry" % j
            )

    ds = None


###############################################################################
# Test reading a big field and a big geometry


def test_ogr_gml_30(tmp_vsimem):

    field1 = " "
    for _ in range(11):
        field1 = field1 + field1

    geom = "0 1 " * 512

    data = """<FeatureCollection xmlns:gml="http://www.opengis.net/gml">
  <gml:featureMember>
    <layer1>
      <geometry><gml:LineString><gml:posList>%s</gml:posList></gml:LineString></geometry>
      <field1>A%sZ</field1>
    </layer1>
  </gml:featureMember>
</FeatureCollection>""" % (
        geom,
        field1,
    )

    f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_30.gml", "wb")
    gdal.VSIFWriteL(data, 1, len(data), f)
    gdal.VSIFCloseL(f)

    ds = ogr.Open(tmp_vsimem / "ogr_gml_30.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    field1 = feat.GetField(0)
    geom_wkt = feat.GetGeometryRef().ExportToWkt()
    ds = None

    assert len(field1) == 2050, "did not get expected len(field1)"

    assert len(geom_wkt) == 2060, "did not get expected len(geom_wkt)"


###############################################################################
# Test SEQUENTIAL_LAYERS


def test_ogr_gml_31():

    with gdal.config_option("GML_READ_MODE", "SEQUENTIAL_LAYERS"):
        test_ogr_gml_29()

    # Test reading second layer and then first layer
    with gdal.config_option("GML_READ_MODE", "SEQUENTIAL_LAYERS"):
        ds = ogr.Open("data/gml/testfmegml.gml")

    lyr = ds.GetLayer(1)
    feat = lyr.GetNextFeature()
    feat = lyr.GetNextFeature()
    assert feat.GetFID() == 1, "did not get feature when reading directly second layer"

    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    feat = lyr.GetNextFeature()
    assert feat.GetFID() == 1, "did not get feature when reading back first layer"


###############################################################################
# Test SEQUENTIAL_LAYERS without a .gfs


def test_ogr_gml_32(tmp_vsimem):

    # Test without .xsd or .gfs
    f = gdal.VSIFOpenL("data/gml/testfmegml.gml", "rb")
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)

    f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_31.gml", "wb")
    gdal.VSIFWriteL(data, 1, len(data), f)
    gdal.VSIFCloseL(f)

    ds = ogr.Open(tmp_vsimem / "ogr_gml_31.gml")

    lyr = ds.GetLayer(1)
    feat = lyr.GetNextFeature()
    feat = lyr.GetNextFeature()
    assert feat.GetFID() == 1, "did not get feature when reading directly second layer"

    ds = None

    f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_31.gfs", "rb")
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)

    data = str(data)

    assert (
        data.find("<SequentialLayers>true</SequentialLayers>") != -1
    ), "did not find <SequentialLayers>true</SequentialLayers> in .gfs"


###############################################################################
# Test INTERLEAVED_LAYERS


def test_ogr_gml_33():

    # Test reading second layer and then first layer
    with gdal.config_option("GML_READ_MODE", "INTERLEAVED_LAYERS"):
        ds = ogr.Open("data/gml/testfmegml_interleaved.gml")

    read_sequence = [
        [0, 1],
        [0, None],
        [1, 3],
        [2, 5],
        [2, None],
        [0, 2],
        [1, 4],
        [1, None],
        [2, 6],
        [2, None],
        [0, None],
        [1, None],
        [2, None],
    ]

    for i, read_seq in enumerate(read_sequence):
        lyr = ds.GetLayer(read_seq[0])
        feat = lyr.GetNextFeature()
        if feat is None:
            fid = None
        else:
            fid = feat.GetFID()
        expected_fid = read_seq[1]
        assert fid == expected_fid, "failed at step %d" % i


###############################################################################
# Test writing non-ASCII UTF-8 content (#4117, #4299)


def test_ogr_gml_34(tmp_vsimem):

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(tmp_vsimem / "ogr_gml_34.gml")
    lyr = ds.CreateLayer("test")
    lyr.CreateField(ogr.FieldDefn("name", ogr.OFTString))
    feat = ogr.Feature(lyr.GetLayerDefn())
    feat.SetField(0, "\xc4\x80liamanu<&")
    lyr.CreateFeature(feat)
    feat = None
    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_34.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert feat.GetFieldAsString("name") == "\xc4\x80liamanu<&"
    ds = None


###############################################################################
# Test GML_SKIP_RESOLVE_ELEMS=HUGE (#4380)


@pytest.mark.require_driver("SQLite")
@pytest.mark.require_geos
def test_ogr_gml_35(tmp_path):

    shutil.copy("data/gml/GmlTopo-sample.xml", tmp_path)

    with gdal.config_option("GML_SKIP_RESOLVE_ELEMS", "HUGE"):
        ds = ogr.Open(tmp_path / "GmlTopo-sample.xml")

    assert not os.path.exists(tmp_path / "GmlTopo-sample.sqlite")

    assert gdal.GetLastErrorMsg() == "", "did not expect error"
    assert ds.GetLayerCount() == 3, "expected 3 layers, got %d" % ds.GetLayerCount()

    lyr = ds.GetLayerByName("Suolo")
    feat = lyr.GetNextFeature()
    wkt = "MULTIPOLYGON (((-0.1 0.6,-0.0 0.7,0.2 0.7,0.3 0.6,0.5 0.6,0.5 0.8,0.7 0.8,0.8 0.6,0.9 0.6,0.9 0.4,0.7 0.3,0.7 0.2,0.9 0.1,0.9 -0.1,0.6 -0.2,0.3 -0.2,0.2 -0.2,-0.1 0.0,-0.1 0.1,-0.1 0.2,0.1 0.3,0.1 0.4,-0.0 0.4,-0.1 0.5,-0.1 0.6)))"
    ogrtest.check_feature_geometry(feat, wkt)

    ds = None

    ds = ogr.Open(tmp_path / "GmlTopo-sample.xml")
    lyr = ds.GetLayerByName("Suolo")
    feat = lyr.GetNextFeature()
    ogrtest.check_feature_geometry(feat, wkt)

    ds = None


###############################################################################
# Test GML_SKIP_RESOLVE_ELEMS=NONE (and new GMLTopoSurface interpretation)
# Test GML_SKIP_RESOLVE_ELEMS=NONE with old GMLTopoSurface interpretation


@pytest.mark.parametrize("GML_FACE_HOLE_NEGATIVE", ("NO", "YES"))
def test_ogr_gml_36(tmp_path, GML_FACE_HOLE_NEGATIVE):

    if GML_FACE_HOLE_NEGATIVE == "NO":
        if not ogrtest.have_geos():
            pytest.skip("GEOS not available")

    shutil.copy("data/gml/GmlTopo-sample.xml", tmp_path)

    with gdal.config_options(
        {
            "GML_SKIP_RESOLVE_ELEMS": "NONE",
            "GML_FACE_HOLE_NEGATIVE": GML_FACE_HOLE_NEGATIVE,
        }
    ):
        ds = ogr.Open(tmp_path / "GmlTopo-sample.xml")
    assert gdal.GetLastErrorMsg() == "", "did not expect error"

    lyr = ds.GetLayerByName("Suolo")
    feat = lyr.GetNextFeature()
    if GML_FACE_HOLE_NEGATIVE == "NO":
        wkt = "MULTIPOLYGON (((-0.1 0.6,-0.0 0.7,0.2 0.7,0.3 0.6,0.5 0.6,0.5 0.8,0.7 0.8,0.8 0.6,0.9 0.6,0.9 0.4,0.7 0.3,0.7 0.2,0.9 0.1,0.9 -0.1,0.6 -0.2,0.3 -0.2,0.2 -0.2,-0.1 0.0,-0.1 0.1,-0.1 0.2,0.1 0.3,0.1 0.4,-0.0 0.4,-0.1 0.5,-0.1 0.6)))"
    else:
        wkt = "POLYGON ((-0.1 0.6,-0.0 0.7,0.2 0.7,0.3 0.6,0.5 0.6,0.5 0.8,0.7 0.8,0.8 0.6,0.9 0.6,0.9 0.4,0.7 0.3,0.7 0.2,0.9 0.1,0.9 -0.1,0.6 -0.2,0.3 -0.2,0.2 -0.2,-0.1 0.0,-0.1 0.1,-0.1 0.2,0.1 0.3,0.1 0.4,-0.0 0.4,-0.1 0.5,-0.1 0.6),(0.2 0.2,0.2 0.4,0.4 0.4,0.5 0.2,0.5 0.1,0.5 0.0,0.2 0.0,0.2 0.2),(0.6 0.1,0.8 0.1,0.8 -0.1,0.6 -0.1,0.6 0.1))"
    ogrtest.check_feature_geometry(feat, wkt)

    ds = None

    with gdal.config_option("GML_FACE_HOLE_NEGATIVE", GML_FACE_HOLE_NEGATIVE):
        ds = ogr.Open(tmp_path / "GmlTopo-sample.xml")
    lyr = ds.GetLayerByName("Suolo")
    feat = lyr.GetNextFeature()
    ogrtest.check_feature_geometry(feat, wkt)

    ds = None


###############################################################################
# Test new GMLTopoSurface interpretation (#3934) with xlink resolver


@pytest.mark.parametrize("resolver", ("HUGE", "NONE"))
@pytest.mark.require_geos
def test_ogr_gml_38(tmp_path, resolver):

    if resolver == "HUGE" and ogr.GetDriverByName("SQLite") is None:
        pytest.skip("Requires SQLite support")

    shutil.copy(
        "data/gml/sample_gml_face_hole_negative_no.xml",
        tmp_path,
    )

    with gdal.config_option("GML_SKIP_RESOLVE_ELEMS", resolver):
        ds = ogr.Open(tmp_path / "sample_gml_face_hole_negative_no.xml")
    gdal.SetConfigOption("GML_FACE_HOLE_NEGATIVE", None)

    if resolver == "HUGE":
        assert not os.path.exists(tmp_path / "sample_gml_face_hole_negative_no.sqlite")

    assert gdal.GetLastErrorMsg() == "", "did not expect error"

    lyr = ds.GetLayerByName("Suolo")
    feat = lyr.GetNextFeature()
    wkt = "MULTIPOLYGON (((0.9 0.6,0.9 0.4,0.7 0.3,0.7 0.2,0.9 0.1,0.9 -0.1,0.6 -0.2,0.3 -0.2,0.2 -0.2,-0.1 0.0,-0.1 0.1,-0.1 0.2,0.1 0.3,0.1 0.4,-0.0 0.4,-0.1 0.5,-0.1 0.6,-0.0 0.7,0.2 0.7,0.3 0.6,0.5 0.6,0.5 0.8,0.7 0.8,0.8 0.6,0.9 0.6),(0.6 0.1,0.6 -0.1,0.8 -0.1,0.8 0.1,0.6 0.1),(0.2 0.4,0.2 0.2,0.2 0.0,0.5 0.0,0.5 0.1,0.5 0.2,0.4 0.4,0.2 0.4)))"
    ogrtest.check_feature_geometry(feat, wkt)

    ds = None


###############################################################################
# Test GML_SKIP_RESOLVE_ELEMS=HUGE with a file with 2 nested identical property
# names


@pytest.mark.require_driver("SQLite")
@pytest.mark.require_geos
def test_ogr_gml_huge_resolver_same_nested_property_name(tmp_path):

    shutil.copy(
        "data/gml/same_nested_property_name.gml",
        tmp_path,
    )

    def check_ds(ds):
        lyr = ds.GetLayer(0)
        f = lyr.GetNextFeature()
        assert f["gml_id"] == "test.0"
        assert f["test"] == "foo"
        assert f["bar|test"] == "bar"

    ds = ogr.Open(tmp_path / "same_nested_property_name.gml")
    check_ds(ds)

    with gdal.config_option("GML_SKIP_RESOLVE_ELEMS", "HUGE"):
        ds = ogr.Open(tmp_path / "same_nested_property_name.gml")
        check_ds(ds)


###############################################################################
# Test parsing XSD where simpleTypes not inlined, but defined elsewhere in the .xsd (#4328)


def test_ogr_gml_40():

    ds = ogr.Open("data/gml/testLookForSimpleType.xml")
    lyr = ds.GetLayer(0)
    fld_defn = lyr.GetLayerDefn().GetFieldDefn(
        lyr.GetLayerDefn().GetFieldIndex("CITYNAME")
    )
    assert fld_defn.GetWidth() == 26


###############################################################################
# Test validating against .xsd


def validate(filename):

    # if gdal.GetDriverByName('GMLAS'):
    #    assert gdal.OpenEx('GMLAS:' + filename, open_options=['VALIDATE=YES', 'FAIL_IF_VALIDATION_ERROR=YES']) is not None
    #    return

    try:
        os.mkdir("tmp/cache/SCHEMAS_OPENGIS_NET")
    except OSError:
        pass

    try:
        os.stat("tmp/cache/SCHEMAS_OPENGIS_NET/gml")
    except OSError:
        gdaltest.unzip(
            "tmp/cache/SCHEMAS_OPENGIS_NET", "tmp/cache/SCHEMAS_OPENGIS_NET.zip"
        )

    ds = ogr.Open(filename)

    with gdal.config_option("GDAL_OPENGIS_SCHEMAS", "./tmp/cache/SCHEMAS_OPENGIS_NET"):
        lyr = ds.ExecuteSQL("SELECT ValidateSchema()")

    feat = lyr.GetNextFeature()
    val = feat.GetFieldAsInteger(0)
    feat = None

    ds.ReleaseResultSet(lyr)

    assert val != 0


###############################################################################
# Test validating against .xsd


def test_ogr_gml_42(have_gml_validation):

    if not have_gml_validation:
        pytest.skip("Schemas not available for GML validation")

    validate("data/gml/expected_gml_gml32.gml")


###############################################################################
# Test automated downloading of WFS schema


def test_ogr_gml_43():

    # The service times out
    pytest.skip("Test disabled because service regularly times out")

    # pylint: disable=unreachable

    ds = ogr.Open("data/gml/wfs_typefeature.gml")
    assert ds is not None
    ds = None

    try:
        os.stat("data/gml/wfs_typefeature.gfs")
        gfs_found = True
    except OSError:
        gfs_found = False

    if gfs_found:
        if (
            gdaltest.gdalurlopen(
                "http://testing.deegree.org:80/deegree-wfs/services?SERVICE=WFS&VERSION=1.1.0&REQUEST=DescribeFeatureType&TYPENAME=app:Springs&NAMESPACE=xmlns(app=http://www.deegree.org/app)"
            )
            is None
        ):
            can_download_schema = False
        else:
            can_download_schema = gdaltest.built_against_curl

        assert not can_download_schema, ".gfs found, but schema could be downloaded"


###############################################################################
# Test providing a custom XSD filename


def test_ogr_gml_44(tmp_vsimem):

    xsd_content = """<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://ogr.maptools.org/" xmlns:ogr="http://ogr.maptools.org/" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:gml="http://www.opengis.net/gml" elementFormDefault="qualified" version="1.0">
<xs:import namespace="http://www.opengis.net/gml" schemaLocation="http://schemas.opengeospatial.net/gml/2.1.2/feature.xsd"/><xs:element name="FeatureCollection" type="ogr:FeatureCollectionType" substitutionGroup="gml:_FeatureCollection"/>
<xs:complexType name="FeatureCollectionType">
  <xs:complexContent>
    <xs:extension base="gml:AbstractFeatureCollectionType">
      <xs:attribute name="lockId" type="xs:string" use="optional"/>
      <xs:attribute name="scope" type="xs:string" use="optional"/>
    </xs:extension>
  </xs:complexContent>
</xs:complexType>
<xs:element name="test_point" type="ogr:test_point_Type" substitutionGroup="gml:_Feature"/>
<xs:complexType name="test_point_Type">
  <xs:complexContent>
    <xs:extension base="gml:AbstractFeatureType">
      <xs:sequence>
<xs:element name="geometryProperty" type="gml:GeometryPropertyType" nillable="true" minOccurs="1" maxOccurs="1"/>
    <xs:element name="dbl" nillable="true" minOccurs="0" maxOccurs="1">
      <xs:simpleType>
        <xs:restriction base="xs:decimal">
          <xs:totalDigits value="32"/>
          <xs:fractionDigits value="3"/>
        </xs:restriction>
      </xs:simpleType>
    </xs:element>
      </xs:sequence>
    </xs:extension>
  </xs:complexContent>
</xs:complexType>
</xs:schema>"""

    gdal.FileFromMemBuffer(tmp_vsimem / "ogr_gml_44.xsd", xsd_content)

    ds = ogr.Open(f"data/gml/test_point.gml,xsd={tmp_vsimem}/ogr_gml_44.xsd")
    lyr = ds.GetLayer(0)

    # fid and dbl
    assert lyr.GetLayerDefn().GetFieldCount() == 2

    ds = None


###############################################################################
# Test PREFIX and TARGET_NAMESPACE creation options


def test_ogr_gml_45(tmp_vsimem, have_gml_validation):

    if not have_gml_validation:
        pytest.skip("Schemas not available for GML validation")

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(
        tmp_vsimem / "ogr_gml_45.gml",
        options=["PREFIX=foo", "TARGET_NAMESPACE=http://bar/"],
    )
    lyr = ds.CreateLayer("test")
    lyr.CreateField(ogr.FieldDefn("str", ogr.OFTString))
    lyr.CreateField(ogr.FieldDefn("int", ogr.OFTInteger))
    lyr.CreateField(ogr.FieldDefn("dbl", ogr.OFTReal))

    dst_feat = ogr.Feature(lyr.GetLayerDefn())
    dst_feat.SetField("str", "str")
    dst_feat.SetField("int", 1)
    dst_feat.SetField("dbl", 2.34)

    lyr.CreateFeature(dst_feat)

    dst_feat = None
    ds = None

    validate(tmp_vsimem / "ogr_gml_45.gml")


###############################################################################
# Validate different kinds of GML files


@pytest.mark.parametrize(
    "wkt",
    [
        "",
        "POINT (0 1)",
        # 'POINT (0 1 2)',
        "LINESTRING (0 1,2 3)",
        # 'LINESTRING (0 1 2,3 4 5)',
        "POLYGON ((0 0,0 1,1 1,1 0,0 0))",
        # 'POLYGON ((0 0 10,0 1 10,1 1 10,1 0 10,0 0 10))',
        "MULTIPOINT (0 1)",
        # 'MULTIPOINT (0 1 2)',
        "MULTILINESTRING ((0 1,2 3))",
        # 'MULTILINESTRING ((0 1 2,3 4 5))',
        "MULTIPOLYGON (((0 0,0 1,1 1,1 0,0 0)))",
        # 'MULTIPOLYGON (((0 0 10,0 1 10,1 1 10,1 0 10,0 0 10)))',
        "GEOMETRYCOLLECTION (POINT (0 1))",
        # 'GEOMETRYCOLLECTION (POINT (0 1 2))'
    ],
    ids=lambda x: x[: x.find(" ")] or "NONE",
)
@pytest.mark.parametrize("frmt", ["GML2", "GML3", "GML3Deegree", "GML3.2"])
def test_ogr_gml_46(tmp_vsimem, have_gml_validation, frmt, wkt):

    if not have_gml_validation:
        pytest.skip("Schemas not available for GML validation")

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(
        tmp_vsimem / "ogr_gml_46.gml", options=["FORMAT=%s" % frmt]
    )
    if wkt != "":
        geom = ogr.CreateGeometryFromWkt(wkt)
        geom_type = geom.GetGeometryType()
        srs = osr.SpatialReference()
        srs.ImportFromEPSG(4326)
    else:
        geom = None
        geom_type = ogr.wkbNone
        srs = None

    lyr = ds.CreateLayer("test", geom_type=geom_type, srs=srs)

    lyr.CreateField(ogr.FieldDefn("str", ogr.OFTString))
    lyr.CreateField(ogr.FieldDefn("int", ogr.OFTInteger))
    lyr.CreateField(ogr.FieldDefn("dbl", ogr.OFTReal))

    dst_feat = ogr.Feature(lyr.GetLayerDefn())
    dst_feat.SetField("str", "str")
    dst_feat.SetField("int", 1)
    dst_feat.SetField("dbl", 2.34)
    dst_feat.SetGeometry(geom)

    lyr.CreateFeature(dst_feat)

    dst_feat = None
    ds = None

    # Validate document
    try:
        validate(tmp_vsimem / "ogr_gml_46.gml")
    except Exception as e:
        print("validation failed for format=%s, wkt=%s" % (frmt, wkt))

        f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_46.gml", "rb")
        content = gdal.VSIFReadL(1, 10000, f)
        gdal.VSIFCloseL(f)
        print(content)

        f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_46.xsd", "rb")
        content = gdal.VSIFReadL(1, 10000, f)
        gdal.VSIFCloseL(f)
        print(content)

        raise e


###############################################################################
# Test validation of WFS GML documents


@pytest.mark.parametrize(
    "filename", ["data/gml/wfs10.xml", "data/gml/wfs11.xml", "data/gml/wfs20.xml"]
)
def test_ogr_gml_validate_wfs(have_gml_validation, filename):

    if not have_gml_validation:
        pytest.skip("Schemas not available for GML validation")

    validate(filename)


###############################################################################
# Test that we can parse some particular .xsd files that have the geometry
# field declared as :
#    <xsd:element name="geometry" minOccurs="0" maxOccurs="1">
#    <xsd:complexType>
#        <xsd:sequence>
#        <xsd:element ref="gml:_Geometry"/>
#        </xsd:sequence>
#    </xsd:complexType>
#    </xsd:element>


def test_ogr_gml_48(tmp_path):

    for ext in ("xml", "xsd"):
        shutil.copy(f"data/gml/schema_with_geom_in_complextype.{ext}", tmp_path)

    ds = ogr.Open(tmp_path / "schema_with_geom_in_complextype.xml")
    lyr = ds.GetLayer(0)

    assert lyr.GetGeomType() == ogr.wkbUnknown

    assert lyr.GetLayerDefn().GetFieldDefn(0).GetType() == ogr.OFTString

    ds = None


###############################################################################
# Test a pseudo Inspire GML file


def test_ogr_gml_49(tmp_vsimem):

    xsd_content = """<ogr:FeatureCollection xmlns:gml="http://www.opengis.net/gml" xmlns:ogr="http://ogr.maptools.org/">
  <gml:featureMember>
    <ogr:test>
      <ogr:geometry><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>2,49 2,50 3,50 3,49 2,49</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></ogr:geometry>
      <ogr:otherGeometry><gml:Point><gml:pos>-2 -49</gml:pos></gml:Point></ogr:otherGeometry>
    </ogr:test>
  </gml:featureMember>
</ogr:FeatureCollection>
"""

    gdal.FileFromMemBuffer(tmp_vsimem / "ogr_gml_49.gml", xsd_content)

    ds = ogr.Open(tmp_vsimem / "ogr_gml_49.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert feat.GetGeometryRef().GetGeometryType() == ogr.wkbPolygon
    ds = None

    # Now with .gfs file present (#6247)
    ds = ogr.Open(tmp_vsimem / "ogr_gml_49.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert feat.GetGeometryRef().GetGeometryType() == ogr.wkbPolygon
    ds = None


###############################################################################
# Test support for StringList, IntegerList, RealList


def test_ogr_gml_50(tmp_vsimem):

    drv = ogr.GetDriverByName("GML")
    ds = drv.CreateDataSource(tmp_vsimem / "ogr_gml_50.gml")
    lyr = ds.CreateLayer("listlayer")
    field_defn = ogr.FieldDefn("stringlist", ogr.OFTStringList)
    lyr.CreateField(field_defn)
    field_defn = ogr.FieldDefn("intlist", ogr.OFTIntegerList)
    lyr.CreateField(field_defn)
    field_defn = ogr.FieldDefn("reallist", ogr.OFTRealList)
    lyr.CreateField(field_defn)
    feat = ogr.Feature(feature_def=lyr.GetLayerDefn())
    feat.SetFieldStringList(0, ["a", "b"])
    feat.SetFieldIntegerList(1, [2, 3])
    feat.SetFieldDoubleList(2, [4.56, 5.67])
    lyr.CreateFeature(feat)
    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_50.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    if feat.GetFieldAsStringList(lyr.GetLayerDefn().GetFieldIndex("stringlist")) != [
        "a",
        "b",
    ]:
        feat.DumpReadable()
        pytest.fail()
    if feat.GetFieldAsIntegerList(lyr.GetLayerDefn().GetFieldIndex("intlist")) != [
        2,
        3,
    ]:
        feat.DumpReadable()
        pytest.fail()
    if feat.GetFieldAsDoubleList(lyr.GetLayerDefn().GetFieldIndex("reallist")) != [
        4.56,
        5.67,
    ]:
        feat.DumpReadable()
        pytest.fail()
    ds = None


###############################################################################
# Test FeaturePropertyList in gfs


@pytest.mark.parametrize(
    "open_options", [[], ["GFS_TEMPLATE=data/gml/testfeaturepropertylist.gfs"]]
)
def test_ogr_gml_read_FeaturePropertyList_in_gfs(open_options):

    ds = gdal.OpenEx("data/gml/testfeaturepropertylist.gml", open_options=open_options)
    assert ds.GetLayerCount() == 2
    lyr = ds.GetLayer(0)
    assert lyr.GetFeatureCount() == 1
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FA"
    assert f["name"] == "Feature A"
    assert f["roleInline_href"] == ["#FB1_1", "#FB1_2"]

    lyr = ds.GetLayer(1)
    assert lyr.GetFeatureCount() == 3
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FB1_1"
    assert f["name"] == "Feature B 1_1"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FB1_2"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FB2"


###############################################################################
# Test FeatureProperty and FeaturePropertyList in gfs


@pytest.mark.parametrize(
    "open_options", [[], ["GFS_TEMPLATE=data/gml/testfeaturepropertylist2.gfs"]]
)
def test_ogr_gml_read_FeatureProperty_in_gfs(open_options):

    ds = gdal.OpenEx("data/gml/testfeaturepropertylist2.xml", open_options=open_options)
    assert ds.GetLayerCount() == 3
    lyr = ds.GetLayer(0)
    assert lyr.GetFeatureCount() == 1
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FT1_1"
    assert f["roleFt2_href"] == ["#FT2_1", "#FT2_2"]
    assert f["roleOt1_href"] == ["#OT1_1", "#OT1_2", "#OT1_3"]

    lyr = ds.GetLayer(1)
    assert lyr.GetFeatureCount() == 2
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FT2_1"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "FT2_2"

    lyr = ds.GetLayer(2)
    assert lyr.GetFeatureCount() == 4
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "OT1_1"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "OT1_2"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "OT1_3"
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "OT1_4"


###############################################################################
# Test -dsco WRITE_FEATURE_BOUNDED_BY=no -dsco STRIP_PREFIX=YES


@pytest.mark.parametrize("frmt", ("GML2", "GML3"))
def test_ogr_gml_51(tmp_path, frmt):

    import test_cli_utilities

    if test_cli_utilities.get_ogr2ogr_path() is None:
        pytest.skip()

    gdaltest.runexternal(
        test_cli_utilities.get_ogr2ogr_path()
        + f" -f GML {tmp_path}/ogr_gml_51.gml data/poly.shp -dsco FORMAT={frmt} -dsco WRITE_FEATURE_BOUNDED_BY=no -dsco STRIP_PREFIX=YES"
    )

    f = open(tmp_path / "ogr_gml_51.gml", "rt")
    content = f.read()
    f.close()
    assert content.find("<FeatureCollection") != -1
    if frmt == "GML3":
        assert content.find("<featureMember>") != -1
    assert content.find("""<poly""") != -1
    assert content.find("""<AREA>215229.266</AREA>""") != -1

    assert (
        content.find("""<gml:boundedBy><gml:Envelope><gml:lowerCorner>479647""") == -1
    )

    ds = ogr.Open(tmp_path / "ogr_gml_51.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert feat is not None
    ds = None


###############################################################################
# Test reading MTKGML files


def test_ogr_gml_52(tmp_path):

    shutil.copy("data/gml/fake_mtkgml.xml", tmp_path)

    for _ in range(2):

        ds = ogr.Open(tmp_path / "fake_mtkgml.xml")

        lyr = ds.GetLayerByName("A")
        assert lyr.GetGeomType() == ogr.wkbPoint25D
        srs = lyr.GetSpatialRef()
        assert srs is not None
        wkt = srs.ExportToWkt()
        assert "3067" in wkt

        assert lyr.GetExtent() == (280000, 280000, 7000000, 7000000)

        feat = lyr.GetNextFeature()

        assert feat.GetField("gid") == "1"
        assert feat.GetField("regular_attribute") == 5
        assert feat.GetField("foo_href") == "some_ref"
        assert feat.GetField("teksti") == "En francais !"
        assert feat.GetField("teksti_kieli") == "fr"
        ogrtest.check_feature_geometry(feat, "POINT (280000 7000000 0)")

        lyr = ds.GetLayerByName("B")
        assert lyr.GetGeomType() == ogr.wkbPolygon25D
        srs = lyr.GetSpatialRef()
        assert srs is not None
        feat = lyr.GetNextFeature()
        ogrtest.check_feature_geometry(
            feat,
            "POLYGON ((280000 7000000 0,281000 7000000 0,281000 7001000 0,280000 7001000 0,280000 7000000 0))",
        )

        lyr = ds.GetLayerByName("C")
        assert lyr.GetGeomType() == ogr.wkbLineString25D
        feat = lyr.GetNextFeature()
        ogrtest.check_feature_geometry(
            feat,
            "LINESTRING (280000 7000000 0,281000 7000000 0,281000 7001000 0,280000 7001000 0,280000 7000000 0)",
        )

        ds = None


###############################################################################
# Test that we don't recognize .xsd files themselves


def test_ogr_gml_53():

    ds = ogr.Open("data/gml/archsites.xsd")
    assert ds is None
    ds = None


###############################################################################
# Test that we can open an empty GML datasource (#249, #5205)


def test_ogr_gml_54(tmp_path):

    shutil.copy("data/gml/empty.gml", tmp_path)

    ds = ogr.Open(tmp_path / "empty.gml")
    assert ds is not None
    ds = None

    # with .gfs now
    ds = ogr.Open(tmp_path / "empty.gml")
    assert ds is not None
    ds = None


###############################################################################
# Test support for <xs:include> in schemas
# Necessary for Finnish NLS data


def test_ogr_gml_55(tmp_path):

    shutil.copy("data/gml/ogr_gml_55.gml", tmp_path)
    shutil.copy("data/gml/ogr_gml_55.xsd", tmp_path)
    shutil.copy("data/gml/ogr_gml_55_included1.xsd", tmp_path)
    shutil.copy("data/gml/ogr_gml_55_included2.xsd", tmp_path)

    ds = ogr.Open(tmp_path / "ogr_gml_55.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetLayerDefn().GetFieldDefn(0).GetType() == ogr.OFTString
    ds = None

    assert not os.path.exists(tmp_path / "ogr_gml_55.gfs")


###############################################################################
# Test support for gml:FeaturePropertyType and multiple geometry field
# Necessary for Finnish NLS data


def test_ogr_gml_56(tmp_path):

    shutil.copy("data/gml/ogr_gml_56.gml", tmp_path)

    with gdal.config_option("GML_REGISTRY", "data/gml/ogr_gml_56_registry.xml"):
        ds = ogr.Open(tmp_path / "ogr_gml_56.gml")
    lyr = ds.GetLayerByName("mainFeature")
    assert lyr.GetSpatialRef() is not None
    feat = lyr.GetNextFeature()
    assert (
        feat.GetFieldAsString(feat.GetFieldIndex("subFeatureProperty_href"))
        == "#subFeature.0"
    )
    assert feat.GetFieldAsStringList(
        feat.GetFieldIndex("subFeatureRepeatedProperty_href")
    ) == ["#subFeatureRepeated.0", "#subFeatureRepeated.1"]
    assert feat.GetGeomFieldRef(0).ExportToWkt() == "POLYGON ((0 0,0 1,1 1,1 0,0 0))"
    assert feat.GetGeomFieldRef(1).ExportToWkt() == "POINT (10 10)"

    lyr = ds.GetLayerByName("subFeature")
    assert lyr.GetLayerDefn().GetGeomFieldCount() == 0
    feat = lyr.GetNextFeature()
    assert feat.GetFieldAsStringList(
        feat.GetFieldIndex("subFeatureRepeatedProperty_href")
    ) == ["#subFeatureRepeated.2"]
    assert feat.GetField("foo") == "bar"

    lyr = ds.GetLayerByName("subFeatureRepeated")
    feat = lyr.GetNextFeature()
    assert feat.GetField("gml_id") == "subFeatureRepeated.2"
    assert feat.GetField("bar") == "baz"
    feat = lyr.GetNextFeature()
    assert feat.GetField("gml_id") == "subFeatureRepeated.0"
    feat = lyr.GetNextFeature()
    assert feat.GetField("gml_id") == "subFeatureRepeated.1"
    ds = None

    assert not os.path.exists(tmp_path / "ogr_gml_56.gfs")


###############################################################################
# Test write support for multiple geometry field


def test_ogr_gml_57(tmp_vsimem):

    for i in range(4):
        options = []
        if i == 3:
            options = ["FORMAT=GML3.2"]
        ds = ogr.GetDriverByName("GML").CreateDataSource(
            tmp_vsimem / "ogr_gml_57.gml", options=options
        )
        assert ds.TestCapability(ogr.ODsCCreateGeomFieldAfterCreateLayer) == 1
        lyr = ds.CreateLayer("myLayer", geom_type=ogr.wkbNone)
        assert lyr.TestCapability(ogr.OLCCreateGeomField) == 1
        geomfielddefn = ogr.GeomFieldDefn("first_geometry", ogr.wkbPoint)
        if i == 1 or i == 2:
            sr = osr.SpatialReference()
            sr.ImportFromEPSG(32630)
            geomfielddefn.SetSpatialRef(sr)
        lyr.CreateGeomField(geomfielddefn)
        geomfielddefn = ogr.GeomFieldDefn("second_geometry", ogr.wkbLineString)
        if i == 1:
            sr = osr.SpatialReference()
            sr.ImportFromEPSG(32630)
            geomfielddefn.SetSpatialRef(sr)
        elif i == 2:
            sr = osr.SpatialReference()
            sr.ImportFromEPSG(32631)
            geomfielddefn.SetSpatialRef(sr)
        lyr.CreateGeomField(geomfielddefn)
        feat = ogr.Feature(lyr.GetLayerDefn())
        feat.SetGeomFieldDirectly(0, ogr.CreateGeometryFromWkt("POINT (0 1)"))
        feat.SetGeomFieldDirectly(1, ogr.CreateGeometryFromWkt("LINESTRING (2 3,4 5)"))
        lyr.CreateFeature(feat)
        feat = None
        ds = None

        if False:  # pylint: disable=using-constant-test
            f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_57.gml", "rb")
            print(gdal.VSIFReadL(1, 1000, f))
            gdal.VSIFCloseL(f)

        ds = ogr.Open(tmp_vsimem / "ogr_gml_57.gml")
        lyr = ds.GetLayer(0)
        feat = lyr.GetNextFeature()
        assert not (
            i == 1
            and feat.GetGeomFieldRef(0)
            .GetSpatialReference()
            .ExportToWkt()
            .find("32630")
            < 0
        )
        assert not (
            i == 1
            and feat.GetGeomFieldRef(1)
            .GetSpatialReference()
            .ExportToWkt()
            .find("32630")
            < 0
        )
        assert not (
            i == 2
            and feat.GetGeomFieldRef(1)
            .GetSpatialReference()
            .ExportToWkt()
            .find("32631")
            < 0
        )
        assert feat.GetGeomFieldRef(0).ExportToWkt() == "POINT (0 1)"
        assert feat.GetGeomFieldRef(1).ExportToWkt() == "LINESTRING (2 3,4 5)"
        ds = None


###############################################################################
# Test support for Inspire Cadastral schemas


def test_ogr_gml_58(tmp_path):

    shutil.copy("data/gml/inspire_cadastralparcel.xml", tmp_path)

    ds = ogr.Open(tmp_path / "inspire_cadastralparcel.xml")
    lyr = ds.GetLayer(0)
    lyr_defn = lyr.GetLayerDefn()
    assert lyr_defn.GetGeomFieldCount() == 2
    assert lyr_defn.GetGeomFieldDefn(0).GetName() == "geometry"
    assert lyr_defn.GetGeomFieldDefn(0).GetType() == ogr.wkbMultiPolygon
    assert lyr_defn.GetGeomFieldDefn(1).GetName() == "referencePoint"
    assert lyr_defn.GetGeomFieldDefn(1).GetType() == ogr.wkbPoint

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralParcel-01"),
        ("areaValue", 10.0),
        ("areaValue_uom", "m2"),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", "2001-01-01T00:00:00.0Z"),
        ("inspireId_localId", "CadastralParcel-01-localId"),
        ("inspireId_namespace", "namespace"),
        ("label", "label"),
        ("nationalCadastralReference", "nationalCadastralReference"),
        ("validFrom", "2002-01-01T00:00:00.0Z"),
        ("validTo", "2003-01-01T00:00:00.0Z"),
        ("basicPropertyUnit_href", ["#BPU.1", "#BPU.2"]),
        ("administrativeUnit_href", "#AU.1"),
        ("zoning_href", "#CZ.1"),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert (
        feat.GetGeomFieldRef(0).ExportToWkt()
        == "MULTIPOLYGON (((2 49,2 50,3 50,3 49)))"
    )
    assert feat.GetGeomFieldRef(1).ExportToWkt() == "POINT (2.5 49.5)"

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralParcel-02"),
        ("areaValue", None),
        ("areaValue_uom", None),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", None),
        ("inspireId_localId", "CadastralParcel-02-localId"),
        ("inspireId_namespace", "namespace"),
        ("label", "label"),
        ("nationalCadastralReference", "nationalCadastralReference"),
        ("validFrom", None),
        ("validTo", None),
        ("basicPropertyUnit_href", None),
        ("administrativeUnit_href", None),
        ("zoning_href", None),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert (
        feat.GetGeomFieldRef(0).ExportToWkt()
        == "MULTIPOLYGON (((2 49,2 50,3 50,3 49)))"
    )
    assert feat.GetGeomFieldRef(1) is None
    feat = None
    lyr = None
    ds = None


def test_ogr_gml_58a(tmp_path):

    shutil.copy("data/gml/inspire_basicpropertyunit.xml", tmp_path)

    ds = ogr.Open(tmp_path / "inspire_basicpropertyunit.xml")
    lyr = ds.GetLayer(0)
    lyr_defn = lyr.GetLayerDefn()
    assert lyr_defn.GetGeomFieldCount() == 0

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "BasicPropertyUnit-01"),
        ("inspireId_localId", "BasicPropertyUnit-01-localId"),
        ("inspireId_namespace", "namespace"),
        ("nationalCadastralReference", "nationalCadastralReference"),
        ("areaValue", 10.0),
        ("areaValue_uom", "m2"),
        ("validFrom", "2000-01-01T00:00:00.0Z"),
        ("validTo", "2001-01-01T00:00:00.0Z"),
        ("beginLifespanVersion", "2002-01-01T00:00:00.0Z"),
        ("endLifespanVersion", "2003-01-01T00:00:00.0Z"),
        ("administrativeUnit_href", "#AU.1"),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "BasicPropertyUnit-02"),
        ("inspireId_localId", "BasicPropertyUnit-02-localId"),
        ("inspireId_namespace", "namespace"),
        ("nationalCadastralReference", "nationalCadastralReference"),
        ("areaValue", None),
        ("areaValue_uom", None),
        ("validFrom", "2000-01-01T00:00:00.0Z"),
        ("validTo", None),
        ("beginLifespanVersion", "2002-01-01T00:00:00.0Z"),
        ("endLifespanVersion", None),
        ("administrativeUnit_href", None),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    feat = None
    lyr = None
    ds = None


def test_ogr_gml_58b(tmp_path):

    shutil.copy("data/gml/inspire_cadastralboundary.xml", tmp_path)

    ds = ogr.Open(tmp_path / "inspire_cadastralboundary.xml")
    lyr = ds.GetLayer(0)
    lyr_defn = lyr.GetLayerDefn()
    assert lyr_defn.GetGeomFieldCount() == 1
    assert lyr_defn.GetGeomFieldDefn(0).GetName() == "geometry"
    assert lyr_defn.GetGeomFieldDefn(0).GetType() == ogr.wkbLineString

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralBoundary-01"),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", "2001-01-01T00:00:00.0Z"),
        ("estimatedAccuracy", 1.0),
        ("estimatedAccuracy_uom", "m"),
        ("inspireId_localId", "CadastralBoundary-01-localId"),
        ("inspireId_namespace", "namespace"),
        ("validFrom", "2002-01-01T00:00:00.0Z"),
        ("validTo", "2003-01-01T00:00:00.0Z"),
        ("parcel_href", ["#Parcel.1", "#Parcel.2"]),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert feat.GetGeomFieldRef(0).ExportToWkt() == "LINESTRING (2 49,3 50)"

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralBoundary-02"),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", None),
        ("estimatedAccuracy", None),
        ("estimatedAccuracy_uom", None),
        ("inspireId_localId", "CadastralBoundary-02-localId"),
        ("inspireId_namespace", "namespace"),
        ("validFrom", None),
        ("validTo", None),
        ("parcel_href", None),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert feat.GetGeomFieldRef(0).ExportToWkt() == "LINESTRING (2 49,3 50)"
    feat = None
    lyr = None
    ds = None


def test_ogr_gml_58c(tmp_path):

    shutil.copy("data/gml/inspire_cadastralzoning.xml", tmp_path)

    ds = ogr.Open(tmp_path / "inspire_cadastralzoning.xml")
    lyr = ds.GetLayer(0)
    lyr_defn = lyr.GetLayerDefn()
    assert lyr_defn.GetGeomFieldCount() == 2
    assert lyr_defn.GetGeomFieldDefn(0).GetName() == "geometry"
    assert lyr_defn.GetGeomFieldDefn(0).GetType() == ogr.wkbMultiPolygon
    assert lyr_defn.GetGeomFieldDefn(1).GetName() == "referencePoint"
    assert lyr_defn.GetGeomFieldDefn(1).GetType() == ogr.wkbPoint

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralZoning-01"),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", "2001-01-01T00:00:00.0Z"),
        ("estimatedAccuracy", 1.0),
        ("estimatedAccuracy_uom", "m"),
        ("inspireId_localId", "CadastralZoning-01-localId"),
        ("inspireId_namespace", "namespace"),
        ("label", "label"),
        ("level", "3"),
        ("levelName", ["English", "Francais", "Deutsch"]),
        ("levelName_locale", ["en", "fr", "de"]),
        ("name_language", ["language"]),
        ("name_nativeness", ["nativeness"]),
        ("name_nameStatus", ["nameStatus"]),
        ("name_pronunciation", None),
        ("name_spelling_text", ["text"]),
        ("name_spelling_script", ["script"]),
        ("nationalCadastalZoningReference", "nationalCadastalZoningReference"),
        ("validFrom", "2002-01-01T00:00:00.0Z"),
        ("validTo", "2003-01-01T00:00:00.0Z"),
        ("upperLevelUnit_href", "#ulu.1"),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert (
        feat.GetGeomFieldRef(0).ExportToWkt()
        == "MULTIPOLYGON (((2 49,2 50,3 50,3 49)))"
    )
    assert feat.GetGeomFieldRef(1).ExportToWkt() == "POINT (2.5 49.5)"

    feat = lyr.GetNextFeature()
    expected = [
        ("gml_id", "CadastralZoning-02"),
        ("beginLifespanVersion", "2000-01-01T00:00:00.0Z"),
        ("endLifespanVersion", None),
        ("estimatedAccuracy", None),
        ("estimatedAccuracy_uom", None),
        ("inspireId_localId", None),
        ("inspireId_namespace", None),
        ("label", "label"),
        ("level", "3"),
        ("levelName", ["English"]),
        ("levelName_locale", ["en"]),
        ("name_language", None),
        ("name_nativeness", None),
        ("name_nameStatus", None),
        ("name_pronunciation", None),
        ("name_spelling_text", None),
        ("name_spelling_script", None),
        ("nationalCadastalZoningReference", "nationalCadastalZoningReference"),
        ("validFrom", None),
        ("validTo", None),
        ("upperLevelUnit_href", None),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    assert (
        feat.GetGeomFieldRef(0).ExportToWkt()
        == "MULTIPOLYGON (((2 49,2 50,3 50,3 49)))"
    )
    assert feat.GetGeomFieldRef(1) is None
    feat = None
    lyr = None
    ds = None


###############################################################################
# Test GFS conditions


def test_ogr_gml_59():

    # Make sure the .gfs file is more recent that the .gml one
    try:
        gml_mtime = os.stat("data/gml/testcondition.gml").st_mtime
        gfs_mtime = os.stat("data/gml/testcondition.gfs").st_mtime
        touch_gfs = gfs_mtime <= gml_mtime
    except Exception:
        touch_gfs = True
    if touch_gfs:
        print("Touching .gfs file")
        f = open("data/gml/testcondition.gfs", "rb+")
        data = f.read(1)
        f.seek(0, 0)
        f.write(data)
        f.close()

    ds = ogr.Open("data/gml/testcondition.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    expected = [
        ("name_en", "English name"),
        ("name_fr", "Nom francais"),
        ("name_others_lang", ["de"]),
        ("name_others", ["Deutsche name"]),
    ]
    for (key, val) in expected:
        assert feat.GetField(key) == val
    feat = None
    lyr = None
    ds = None


########################################################
# Test reading WFS 2.0 GetFeature documents with wfs:FeatureCollection
# as a wfs:member of the top wfs:FeatureCollection


def test_ogr_gml_60(tmp_path):

    shutil.copy("data/gml/wfs_200_multiplelayers.gml", tmp_path)

    for _ in range(2):
        ds = ogr.Open(tmp_path / "wfs_200_multiplelayers.gml")
        lyr = ds.GetLayerByName("road")
        assert lyr.GetFeatureCount() == 1
        feat = lyr.GetNextFeature()
        assert feat.GetField("gml_id") == "road.21"
        lyr = ds.GetLayerByName("popplace")
        assert lyr.GetFeatureCount() == 1
        feat = lyr.GetNextFeature()
        assert feat.GetField("gml_id") == "popplace.BACMK"
        ds = None


###############################################################################
# Test reading a element specified with a full path in <ElementPath>


def test_ogr_gml_61():

    # Make sure the .gfs file is more recent that the .gml one
    try:
        gml_mtime = os.stat("data/gml/gmlsubfeature.gml").st_mtime
        gfs_mtime = os.stat("data/gml/gmlsubfeature.gfs").st_mtime
        touch_gfs = gfs_mtime <= gml_mtime
    except Exception:
        touch_gfs = True
    if touch_gfs:
        print("Touching .gfs file")
        f = open("data/gml/gmlsubfeature.gfs", "rb+")
        data = f.read(1)
        f.seek(0, 0)
        f.write(data)
        f.close()

    ds = ogr.Open("data/gml/gmlsubfeature.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetFeatureCount() == 2, "did not get expected geometry column name"

    feat = lyr.GetNextFeature()
    if feat.GetField("gml_id") != "Object.1" or feat.GetField("foo") != "bar":
        feat.DumpReadable()
        pytest.fail()
    geom = feat.GetGeometryRef()
    if geom.ExportToWkt() != "POLYGON ((2 48,2 49,3 49,3 48,2 48))":
        feat.DumpReadable()
        pytest.fail()

    feat = lyr.GetNextFeature()
    if feat.GetField("gml_id") != "Object.2" or feat.GetField("foo") != "baz":
        feat.DumpReadable()
        pytest.fail()
    geom = feat.GetGeometryRef()
    if geom.ExportToWkt() != "POLYGON ((2 -48,2 -49,3 -49,3 -48,2 -48))":
        feat.DumpReadable()
        pytest.fail()

    ds = None


###############################################################################
# Test GML_ATTRIBUTES_TO_OGR_FIELDS option


def test_ogr_gml_62(tmp_path):

    shutil.copy("data/gml/gmlattributes.gml", tmp_path)

    # Default behaviour
    ds = ogr.Open(tmp_path / "gmlattributes.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetLayerDefn().GetFieldCount() == 1
    ds = None


def test_ogr_gml_62bis(tmp_path):

    shutil.copy("data/gml/gmlattributes.gml", tmp_path)

    # Test GML_ATTRIBUTES_TO_OGR_FIELDS=YES

    # Without and then with .gfs
    for i in range(2):
        if i == 0:
            gdal.SetConfigOption("GML_ATTRIBUTES_TO_OGR_FIELDS", "YES")
        ds = ogr.Open(tmp_path / "gmlattributes.gml")
        if i == 0:
            gdal.SetConfigOption("GML_ATTRIBUTES_TO_OGR_FIELDS", None)
        lyr = ds.GetLayer(0)
        assert lyr.GetLayerDefn().GetFieldCount() == 4, i
        feat = lyr.GetNextFeature()
        if (
            feat.GetField("element_attr1") != "1"
            or feat.GetField("element2_attr1") != "a"
            or feat.GetField("element2") != "foo"
            or feat.IsFieldSet("element3_attr1")
        ):
            feat.DumpReadable()
            pytest.fail(i)
        feat = lyr.GetNextFeature()
        if (
            feat.IsFieldSet("element_attr1")
            or feat.IsFieldSet("element2_attr1")
            or feat.IsFieldSet("element2")
            or feat.GetField("element3_attr1") != 1
        ):
            feat.DumpReadable()
            pytest.fail(i)
        feat = lyr.GetNextFeature()
        if (
            feat.GetField("element_attr1") != "a"
            or feat.IsFieldSet("element2_attr1")
            or feat.IsFieldSet("element2")
            or feat.IsFieldSet("element3_attr1")
        ):
            feat.DumpReadable()
            pytest.fail(i)
        feat = None
        ds = None


###############################################################################
# Test reading RUIAN VFR files


def test_ogr_gml_63():

    # test ST file type
    ds = ogr.Open("data/gml/ruian_st_v1.xml.gz")

    # check number of layers
    nlayers = ds.GetLayerCount()
    assert nlayers == 14

    # check name of first layer
    lyr = ds.GetLayer(0)
    assert lyr.GetName() == "Staty"

    # check geometry column name
    assert lyr.GetGeometryColumn() == "DefinicniBod"

    ds = None

    # test OB file type
    ds = ogr.Open("data/gml/ruian_ob_v1.xml.gz")

    # check number of layers
    nlayers = ds.GetLayerCount()
    assert nlayers == 11

    # check number of features
    nfeatures = 0
    for i in range(nlayers):
        lyr = ds.GetLayer(i)
        nfeatures += lyr.GetFeatureCount()
    assert nfeatures == 7


###############################################################################
# Test multiple instances of parsers (#5571)


@pytest.mark.parametrize("parser", ("XERCES", "EXPAT"))
def test_ogr_gml_64(parser):

    with gdal.config_option("GML_PARSER", parser):
        ds = ogr.Open("data/gml/rnf_eg.gml")
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    assert feat is not None, parser


###############################################################################
# Test we don't spend too much time parsing documents featuring the billion
# laugh attack


@gdaltest.enable_exceptions()
@pytest.mark.parametrize("parser", ("XERCES", "EXPAT"))
def test_ogr_gml_billion_laugh(parser):

    with gdal.config_option("GML_PARSER", parser), pytest.raises(
        Exception, match="File probably corrupted"
    ):
        with gdal.OpenEx("data/gml/billionlaugh.gml") as ds:
            assert ds.GetDriver().GetDescription() == "GML"
            for i in range(ds.GetLayerCount()):
                lyr = ds.GetLayer(i)
                for f in lyr:
                    pass


###############################################################################
# Test SRSDIMENSION_LOC=GEOMETRY option (#5606)


@pytest.mark.parametrize(
    "option,expected",
    [
        [
            "SRSDIMENSION_LOC=GEOMETRY",
            '<ogr:geometryProperty><gml:MultiSurface srsDimension="3"><gml:surfaceMember><gml:Polygon><gml:exterior><gml:LinearRing><gml:posList>0 1 2 3 4 5 6 7 8 0 1 2</gml:posList></gml:LinearRing></gml:exterior></gml:Polygon></gml:surfaceMember></gml:MultiSurface></ogr:geometryProperty>',
        ],
        [
            "SRSDIMENSION_LOC=POSLIST",
            '<ogr:geometryProperty><gml:MultiSurface><gml:surfaceMember><gml:Polygon><gml:exterior><gml:LinearRing><gml:posList srsDimension="3">0 1 2 3 4 5 6 7 8 0 1 2</gml:posList></gml:LinearRing></gml:exterior></gml:Polygon></gml:surfaceMember></gml:MultiSurface></ogr:geometryProperty>',
        ],
        [
            "SRSDIMENSION_LOC=GEOMETRY,POSLIST",
            '<ogr:geometryProperty><gml:MultiSurface srsDimension="3"><gml:surfaceMember><gml:Polygon><gml:exterior><gml:LinearRing><gml:posList srsDimension="3">0 1 2 3 4 5 6 7 8 0 1 2</gml:posList></gml:LinearRing></gml:exterior></gml:Polygon></gml:surfaceMember></gml:MultiSurface></ogr:geometryProperty>',
        ],
    ],
    ids=lambda x: x[0],
)
def test_ogr_gml_65(tmp_vsimem, option, expected):

    filename = tmp_vsimem / "ogr_gml_65.gml"
    # filename = 'ogr_gml_65.gml'
    ds = ogr.GetDriverByName("GML").CreateDataSource(
        filename, options=["FORMAT=GML3", option]
    )
    lyr = ds.CreateLayer("lyr")
    feat = ogr.Feature(lyr.GetLayerDefn())
    feat.SetGeometry(
        ogr.CreateGeometryFromWkt("MULTIPOLYGON (((0 1 2,3 4 5,6 7 8,0 1 2)))")
    )
    lyr.CreateFeature(feat)
    ds = None

    f = gdal.VSIFOpenL(filename, "rb")
    data = gdal.VSIFReadL(1, 10000, f).decode("ascii")
    gdal.VSIFCloseL(f)

    assert expected in data

    ds = ogr.Open(filename)
    lyr = ds.GetLayer(0)
    feat = lyr.GetNextFeature()
    if (
        feat.GetGeometryRef().ExportToWkt()
        != "MULTIPOLYGON (((0 1 2,3 4 5,6 7 8,0 1 2)))"
    ):
        feat.DumpReadable()
        pytest.fail()
    ds = None


###############################################################################
# Test curve geometries


def test_ogr_gml_66(tmp_vsimem):

    filename = tmp_vsimem / "ogr_gml_66.gml"
    # filename = 'ogr_gml_66.gml'
    ds = ogr.GetDriverByName("GML").CreateDataSource(filename, options=["FORMAT=GML3"])
    lyr = ds.CreateLayer("compoundcurve", geom_type=ogr.wkbCompoundCurve)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("COMPOUNDCURVE (CIRCULARSTRING (0 0,1 1,2 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("CIRCULARSTRING (0 0,1 1,2 0)"))
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("LINESTRING (0 0,1 1,2 0)"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("curvepolygon", geom_type=ogr.wkbCurvePolygon)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("CURVEPOLYGON ( CIRCULARSTRING(0 0,1 0,0 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POLYGON ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multisurface", geom_type=ogr.wkbMultiSurface)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt(
            "MULTISURFACE (CURVEPOLYGON ( CIRCULARSTRING(0 0,1 0,0 0)))"
        )
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTIPOLYGON (((0 0,0 1,1 1,0 0)))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multicurve", geom_type=ogr.wkbMultiCurve)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("MULTICURVE ( CIRCULARSTRING(0 0,1 0,0 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTICURVE ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("polygon", geom_type=ogr.wkbPolygon)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POLYGON ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("linestring", geom_type=ogr.wkbLineString)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("LINESTRING (0 0,0 1,1 1,0 0)"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multipolygon", geom_type=ogr.wkbMultiPolygon)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTIPOLYGON (((0 0,0 1,1 1,0 0)))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multilinestring", geom_type=ogr.wkbMultiLineString)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTILINESTRING ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("compoundcurve_untyped")
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("LINESTRING (0 0,1 1,2 0)"))
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("COMPOUNDCURVE (CIRCULARSTRING (0 0,1 1,2 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("LINESTRING (0 0,1 1,2 0)"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("curvepolygon_untyped")
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POLYGON ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("CURVEPOLYGON ( CIRCULARSTRING(0 0,1 0,0 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POLYGON ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multisurface_untyped")
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTIPOLYGON (((0 0,0 1,1 1,0 0)))"))
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt(
            "MULTISURFACE (CURVEPOLYGON ( CIRCULARSTRING(0 0,1 0,0 0)))"
        )
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTIPOLYGON (((0 0,0 1,1 1,0 0)))"))
    lyr.CreateFeature(f)
    f = None

    lyr = ds.CreateLayer("multicurve_untyped")
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTILINESTRING ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("MULTICURVE (CIRCULARSTRING (0 0,1 1,2 0))")
    )
    lyr.CreateFeature(f)
    f = None
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("MULTILINESTRING ((0 0,0 1,1 1,0 0))"))
    lyr.CreateFeature(f)
    f = None

    ds = None

    # Test first with .xsd and then without
    for i in range(3):

        ds = ogr.Open(filename)

        lyr = ds.GetLayerByName("compoundcurve")
        assert lyr.GetGeomType() == ogr.wkbCompoundCurve
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "COMPOUNDCURVE (CIRCULARSTRING (0 0,1 1,2 0))"
        ):
            feat.DumpReadable()
            pytest.fail()
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "COMPOUNDCURVE (CIRCULARSTRING (0 0,1 1,2 0))"
        ):
            feat.DumpReadable()
            pytest.fail()
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "COMPOUNDCURVE ((0 0,1 1,2 0))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("curvepolygon")
        assert lyr.GetGeomType() == ogr.wkbCurvePolygon
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "CURVEPOLYGON (CIRCULARSTRING (0 0,0.5 0.5,1 0,0.5 -0.5,0 0))"
        ):
            feat.DumpReadable()
            pytest.fail()
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "CURVEPOLYGON ((0 0,0 1,1 1,0 0))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multisurface")
        assert lyr.GetGeomType() == ogr.wkbMultiSurface
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "MULTISURFACE (CURVEPOLYGON (CIRCULARSTRING (0 0,0.5 0.5,1 0,0.5 -0.5,0 0)))"
        ):
            feat.DumpReadable()
            pytest.fail()
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "MULTISURFACE (((0 0,0 1,1 1,0 0)))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multicurve")
        assert lyr.GetGeomType() == ogr.wkbMultiCurve
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "MULTICURVE (CIRCULARSTRING (0 0,0.5 0.5,1 0,0.5 -0.5,0 0))"
        ):
            feat.DumpReadable()
            pytest.fail()
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "MULTICURVE ((0 0,0 1,1 1,0 0))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("polygon")
        assert lyr.GetGeomType() == ogr.wkbPolygon
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "POLYGON ((0 0,0 1,1 1,0 0))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("linestring")
        assert lyr.GetGeomType() == ogr.wkbLineString
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "LINESTRING (0 0,0 1,1 1,0 0)":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multipolygon")
        assert lyr.GetGeomType() == ogr.wkbMultiPolygon
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "MULTIPOLYGON (((0 0,0 1,1 1,0 0)))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multilinestring")
        assert lyr.GetGeomType() == ogr.wkbMultiLineString
        feat = lyr.GetNextFeature()
        if feat.GetGeometryRef().ExportToWkt() != "MULTILINESTRING ((0 0,0 1,1 1,0 0))":
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("compoundcurve_untyped")
        if i != 0:
            assert lyr.GetGeomType() == ogr.wkbCompoundCurve
            feat = lyr.GetNextFeature()
            if feat.GetGeometryRef().ExportToWkt() != "COMPOUNDCURVE ((0 0,1 1,2 0))":
                feat.DumpReadable()
                pytest.fail()
        else:
            feat = lyr.GetNextFeature()
            if feat.GetGeometryRef().ExportToWkt() != "LINESTRING (0 0,1 1,2 0)":
                feat.DumpReadable()
                pytest.fail()
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "COMPOUNDCURVE (CIRCULARSTRING (0 0,1 1,2 0))"
        ):
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("curvepolygon_untyped")
        if i != 0:
            assert lyr.GetGeomType() == ogr.wkbCurvePolygon
            feat = lyr.GetNextFeature()
            if (
                feat.GetGeometryRef().ExportToWkt()
                != "CURVEPOLYGON ((0 0,0 1,1 1,0 0))"
            ):
                feat.DumpReadable()
                pytest.fail()
        else:
            feat = lyr.GetNextFeature()
            if feat.GetGeometryRef().ExportToWkt() != "POLYGON ((0 0,0 1,1 1,0 0))":
                feat.DumpReadable()
                pytest.fail()
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "CURVEPOLYGON (CIRCULARSTRING (0 0,0.5 0.5,1 0,0.5 -0.5,0 0))"
        ):
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multisurface_untyped")
        if i != 0:
            assert lyr.GetGeomType() == ogr.wkbMultiSurface
            feat = lyr.GetNextFeature()
            if (
                feat.GetGeometryRef().ExportToWkt()
                != "MULTISURFACE (((0 0,0 1,1 1,0 0)))"
            ):
                feat.DumpReadable()
                pytest.fail()
        else:
            feat = lyr.GetNextFeature()
            if (
                feat.GetGeometryRef().ExportToWkt()
                != "MULTIPOLYGON (((0 0,0 1,1 1,0 0)))"
            ):
                feat.DumpReadable()
                pytest.fail()
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "MULTISURFACE (CURVEPOLYGON (CIRCULARSTRING (0 0,0.5 0.5,1 0,0.5 -0.5,0 0)))"
        ):
            feat.DumpReadable()
            pytest.fail()

        lyr = ds.GetLayerByName("multicurve_untyped")
        if i != 0:
            assert lyr.GetGeomType() == ogr.wkbMultiCurve
            feat = lyr.GetNextFeature()
            if feat.GetGeometryRef().ExportToWkt() != "MULTICURVE ((0 0,0 1,1 1,0 0))":
                feat.DumpReadable()
                pytest.fail()
        else:
            feat = lyr.GetNextFeature()
            if (
                feat.GetGeometryRef().ExportToWkt()
                != "MULTILINESTRING ((0 0,0 1,1 1,0 0))"
            ):
                feat.DumpReadable()
                pytest.fail()
        feat = lyr.GetNextFeature()
        if (
            feat.GetGeometryRef().ExportToWkt()
            != "MULTICURVE (CIRCULARSTRING (0 0,1 1,2 0))"
        ):
            feat.DumpReadable()
            pytest.fail()

        ds = None

        gdal.Unlink(filename.with_suffix(".xsd"))


###############################################################################
# Test boolean, int16, integer64 type


def test_ogr_gml_67(tmp_vsimem):

    filename = tmp_vsimem / "ogr_gml_67.gml"
    ds = ogr.GetDriverByName("GML").CreateDataSource(filename)
    lyr = ds.CreateLayer("test")
    fld_defn = ogr.FieldDefn("b1", ogr.OFTInteger)
    fld_defn.SetSubType(ogr.OFSTBoolean)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("b2", ogr.OFTInteger)
    fld_defn.SetSubType(ogr.OFSTBoolean)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("bool_list", ogr.OFTIntegerList)
    fld_defn.SetSubType(ogr.OFSTBoolean)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("short", ogr.OFTInteger)
    fld_defn.SetSubType(ogr.OFSTInt16)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("float", ogr.OFTReal)
    fld_defn.SetSubType(ogr.OFSTFloat32)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("int64", ogr.OFTInteger64)
    lyr.CreateField(fld_defn)
    fld_defn = ogr.FieldDefn("int64list", ogr.OFTInteger64List)
    lyr.CreateField(fld_defn)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetField(0, 1)
    f.SetField(1, 0)
    f.SetFieldIntegerList(2, [1, 0])
    f.SetField(3, -32768)
    f.SetField(4, 1.23)
    f.SetField(5, 1)
    f.SetFieldInteger64List(6, [1])
    lyr.CreateFeature(f)

    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetFID(1234567890123)
    f.SetField(5, 1234567890123)
    f.SetFieldInteger64List(6, [1, 1234567890123])
    lyr.CreateFeature(f)
    f = None

    ds = None

    # Test first with .xsd and then without
    for i in range(3):

        ds = ogr.Open(filename)
        lyr = ds.GetLayer(0)
        assert (
            lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("b1"))
            .GetType()
            == ogr.OFTInteger
            and lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("b1"))
            .GetSubType()
            == ogr.OFSTBoolean
        ), i
        assert (
            lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("bool_list"))
            .GetType()
            == ogr.OFTIntegerList
            and lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("bool_list"))
            .GetSubType()
            == ogr.OFSTBoolean
        ), i
        if i == 0:
            assert (
                lyr.GetLayerDefn()
                .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("short"))
                .GetType()
                == ogr.OFTInteger
                and lyr.GetLayerDefn()
                .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("short"))
                .GetSubType()
                == ogr.OFSTInt16
            ), i
        if i == 0:
            assert (
                lyr.GetLayerDefn()
                .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("float"))
                .GetType()
                == ogr.OFTReal
                and lyr.GetLayerDefn()
                .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("float"))
                .GetSubType()
                == ogr.OFSTFloat32
            ), i
        assert (
            lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("int64"))
            .GetType()
            == ogr.OFTInteger64
        ), i
        assert (
            lyr.GetLayerDefn()
            .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("int64list"))
            .GetType()
            == ogr.OFTInteger64List
        ), i
        f = lyr.GetNextFeature()
        if (
            f.GetField("b1") != 1
            or f.GetField("b2") != 0
            or f.GetFieldAsString("bool_list") != "(2:1,0)"
            or f.GetField("short") != -32768
            or f.GetField("float") != 1.23
        ):
            f.DumpReadable()
            pytest.fail(i)
        f = lyr.GetNextFeature()
        if (
            f.GetFID() != 1234567890123
            or f.GetField("int64") != 1234567890123
            or f.GetField("int64list") != [1, 1234567890123]
        ):
            f.DumpReadable()
            pytest.fail(i)
        ds = None

        gdal.Unlink(filename.with_suffix(".xsd"))


###############################################################################
# Test reading GML with xsd with a choice of geometry properties


def test_ogr_gml_68():

    ds = ogr.Open("data/gml/choicepolygonmultipolygon.gml")

    expected_results = [
        "MULTIPOLYGON (((0 0,0 1,1 1,1 0,0 0)))",
        "MULTIPOLYGON (((0 0,0 1,1 1,1 0,0 0)),((10 0,10 1,11 1,11 0,10 0)))",
    ]

    lyr = ds.GetLayer(0)
    assert (
        lyr.GetGeomType() == ogr.wkbMultiPolygon
    ), " did not get expected layer geometry type"
    for i in range(2):
        feat = lyr.GetNextFeature()
        geom = feat.GetGeometryRef()
        got_wkt = geom.ExportToWkt()
        assert got_wkt == expected_results[i], "did not get expected geometry"

    ds = None


###############################################################################
# Test not nullable fields


def test_ogr_gml_69(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(tmp_vsimem / "ogr_gml_69.gml")
    lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)
    field_defn = ogr.FieldDefn("field_not_nullable", ogr.OFTString)
    field_defn.SetNullable(0)
    lyr.CreateField(field_defn)
    field_defn = ogr.FieldDefn("field_nullable", ogr.OFTString)
    lyr.CreateField(field_defn)
    field_defn = ogr.GeomFieldDefn("geomfield_not_nullable", ogr.wkbPoint)
    field_defn.SetNullable(0)
    lyr.CreateGeomField(field_defn)
    field_defn = ogr.GeomFieldDefn("geomfield_nullable", ogr.wkbPoint)
    lyr.CreateGeomField(field_defn)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetField("field_not_nullable", "not_null")
    f.SetGeomFieldDirectly(
        "geomfield_not_nullable", ogr.CreateGeometryFromWkt("POINT(0 0)")
    )
    lyr.CreateFeature(f)
    f = None

    # Error case: missing geometry
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetField("field_not_nullable", "not_null")
    with gdal.quiet_errors():
        ret = lyr.CreateFeature(f)
    assert ret != 0
    f = None

    # Error case: missing non-nullable field
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(ogr.CreateGeometryFromWkt("POINT(0 0)"))
    with gdal.quiet_errors():
        ret = lyr.CreateFeature(f)
    assert ret != 0
    f = None

    ds = None

    ds = gdal.OpenEx(tmp_vsimem / "ogr_gml_69.gml", open_options=["EMPTY_AS_NULL=NO"])
    lyr = ds.GetLayerByName("test")
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("field_not_nullable"))
        .IsNullable()
        == 0
    )
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("field_nullable"))
        .IsNullable()
        == 1
    )
    assert (
        lyr.GetLayerDefn()
        .GetGeomFieldDefn(
            lyr.GetLayerDefn().GetGeomFieldIndex("geomfield_not_nullable")
        )
        .IsNullable()
        == 0
    )
    assert (
        lyr.GetLayerDefn()
        .GetGeomFieldDefn(lyr.GetLayerDefn().GetGeomFieldIndex("geomfield_nullable"))
        .IsNullable()
        == 1
    )
    ds = None


###############################################################################
# Test default fields (not really supported, but we must do something as we
# support not nullable fields)


def test_ogr_gml_70(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(tmp_vsimem / "ogr_gml_70.gml")
    lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)

    field_defn = ogr.FieldDefn("field_string", ogr.OFTString)
    field_defn.SetDefault("'a'")
    field_defn.SetNullable(0)
    lyr.CreateField(field_defn)

    f = ogr.Feature(lyr.GetLayerDefn())
    lyr.CreateFeature(f)
    f = None

    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_70.gml")
    lyr = ds.GetLayerByName("test")
    f = lyr.GetNextFeature()
    if f.GetField("field_string") != "a":
        f.DumpReadable()
        pytest.fail()
    ds = None


###############################################################################
# Test reading WFS 2.0 layer resulting from a join operation


def ogr_gml_71_helper(ds):

    assert ds.GetLayerCount() == 1
    lyr = ds.GetLayer(0)
    assert lyr.GetName() == "join_table1_table2"
    fields = [
        ("table1.gml_id", ogr.OFTString),
        ("table1.foo", ogr.OFTInteger),
        ("table1.bar", ogr.OFTInteger),
        ("table2.gml_id", ogr.OFTString),
        ("table2.bar", ogr.OFTInteger),
        ("table2.baz", ogr.OFTString),
    ]
    layer_defn = lyr.GetLayerDefn()
    assert layer_defn.GetFieldCount() == len(fields)
    for i, field in enumerate(fields):
        fld_defn = layer_defn.GetFieldDefn(i)
        assert fld_defn.GetName() == field[0], i
        assert fld_defn.GetType() == field[1], i
    assert layer_defn.GetGeomFieldCount() == 2
    assert layer_defn.GetGeomFieldDefn(0).GetName() == "table1.geometry"
    assert layer_defn.GetGeomFieldDefn(1).GetName() == "table2.geometry"
    f = lyr.GetNextFeature()
    if (
        f.GetField("table1.gml_id") != "table1-1"
        or f.GetField("table1.foo") != 1
        or f.IsFieldSet("table1.bar")
        or f.GetField("table2.gml_id") != "table2-1"
        or f.GetField("table2.bar") != 2
        or f.GetField("table2.baz") != "foo"
        or f.GetGeomFieldRef(0) is not None
        or f.GetGeomFieldRef(1).ExportToWkt() != "POINT (2 49)"
    ):
        f.DumpReadable()
        pytest.fail()
    f = lyr.GetNextFeature()
    if (
        f.GetField("table1.gml_id") != "table1-2"
        or f.IsFieldSet("table1.foo")
        or f.GetField("table1.bar") != 2
        or f.GetField("table2.gml_id") != "table2-2"
        or f.GetField("table2.bar") != 2
        or f.GetField("table2.baz") != "bar"
        or f.GetGeomFieldRef(0).ExportToWkt() != "POINT (3 50)"
        or f.GetGeomFieldRef(1).ExportToWkt() != "POINT (2 50)"
    ):
        f.DumpReadable()
        pytest.fail()


def test_ogr_gml_71(tmp_path):

    # With .xsd
    assert not os.path.exists("data/gml/wfsjointlayer.gfs")

    ds = ogr.Open("data/gml/wfsjointlayer.gml")
    ogr_gml_71_helper(ds)
    ds = None

    assert not os.path.exists("data/gml/wfsjointlayer.gfs")


def test_ogr_gml_71bis(tmp_path):

    shutil.copy("data/gml/wfsjointlayer.gml", tmp_path)

    # With .xsd but that is only partially understood
    ds = gdal.OpenEx(
        tmp_path / "wfsjointlayer.gml",
        open_options=["XSD=data/gml/wfsjointlayer_not_understood.xsd"],
    )
    ogr_gml_71_helper(ds)
    ds = None

    assert os.path.exists(tmp_path / "wfsjointlayer.gfs")


def test_ogr_gml_71ter(tmp_path):

    # Without .xsd nor .gfs
    shutil.copy("data/gml/wfsjointlayer.gml", tmp_path)
    ds = ogr.Open(tmp_path / "wfsjointlayer.gml")
    ogr_gml_71_helper(ds)
    ds = None

    assert os.path.exists(tmp_path / "wfsjointlayer.gfs")

    # With .gfs
    ds = ogr.Open(tmp_path / "wfsjointlayer.gml")
    ogr_gml_71_helper(ds)
    ds = None


###############################################################################
# Test name and description


def test_ogr_gml_72(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(
        tmp_vsimem / "ogr_gml_72.gml", options=["NAME=name", "DESCRIPTION=description"]
    )
    ds.SetMetadata({"NAME": "ignored", "DESCRIPTION": "ignored"})
    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_72.gml")
    assert ds.GetMetadata() == {"NAME": "name", "DESCRIPTION": "description"}
    ds = None


def test_ogr_gml_72bis(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(tmp_vsimem / "ogr_gml_72.gml")
    ds.SetMetadata({"NAME": "name", "DESCRIPTION": "description"})
    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_72.gml")
    assert ds.GetMetadata() == {"NAME": "name", "DESCRIPTION": "description"}
    ds = None


###############################################################################
# Read a CSW GetRecordsResponse document


def test_ogr_gml_73(tmp_path):

    shutil.copy("data/gml/cswresults.xml", tmp_path)

    ds = ogr.Open(tmp_path / "cswresults.xml")
    for i in range(3):
        lyr = ds.GetLayer(i)
        sr = lyr.GetSpatialRef()
        got_wkt = sr.ExportToWkt()
        assert "4326" in got_wkt, "did not get expected SRS"

        feat = lyr.GetNextFeature()
        geom = feat.GetGeometryRef()
        got_wkt = geom.ExportToWkt()
        assert (
            got_wkt == "POLYGON ((-180 -90,-180 90,180 90,180 -90,-180 -90))"
        ), "did not get expected geometry"

    ds = None


###############################################################################
# Test FORCE_SRS_DETECTION open option


def test_ogr_gml_74(tmp_path):

    # With .xsd
    ds = gdal.OpenEx(
        "data/gml/expected_gml_gml32.gml", open_options=["FORCE_SRS_DETECTION=YES"]
    )
    lyr = ds.GetLayer(0)
    assert lyr.GetSpatialRef() is not None, "did not get expected SRS"
    assert lyr.GetFeatureCount() == 2, "did not get expected feature count"

    shutil.copy("data/gml/expected_gml_gml32.gml", tmp_path / "ogr_gml_74.gml")
    # Without .xsd or .gfs
    ds = gdal.OpenEx(
        tmp_path / "ogr_gml_74.gml", open_options=["FORCE_SRS_DETECTION=YES"]
    )
    lyr = ds.GetLayer(0)
    assert lyr.GetSpatialRef() is not None, "did not get expected SRS"
    assert lyr.GetFeatureCount() == 2, "did not get expected feature count"

    # With .gfs
    ds = gdal.OpenEx(
        tmp_path / "ogr_gml_74.gml", open_options=["FORCE_SRS_DETECTION=YES"]
    )
    lyr = ds.GetLayer(0)
    assert lyr.GetSpatialRef() is not None, "did not get expected SRS"
    assert lyr.GetFeatureCount() == 2, "did not get expected feature count"
    ds = None


###############################################################################
# Test we don't open a WMTS Capabilities doc


def test_ogr_gml_75(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "ogr_gml_75.xml",
        """<?xml version="1.0" encoding="UTF-8"?>
<Capabilities xmlns="http://www.opengis.net/wmts/1.0"
xmlns:ows="http://www.opengis.net/ows/1.1"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:gml="http://www.opengis.net/gml"
xsi:schemaLocation="http://www.opengis.net/wmts/1.0 http://somewhere"
version="1.0.0">
        <ows:OperationsMetadata>
                <ows:Operation name="GetCapabilities">
                        <ows:DCP>
                                <ows:HTTP>
                                        <ows:Get xlink:href="http://foo"/>
                                </ows:HTTP>
                        </ows:DCP>
                </ows:Operation>
                <ows:Operation name="GetTile">
                        <ows:DCP>
                                <ows:HTTP>
                                        <ows:Get xlink:href="http://foo"/>
                                </ows:HTTP>
                        </ows:DCP>
                </ows:Operation>
        </ows:OperationsMetadata>
</Capabilities>""",
    )

    ds = ogr.Open(tmp_vsimem / "ogr_gml_75.xml")
    assert ds is None


###############################################################################
# Test we are robust to content of XML elements bigger than 2 GB


@pytest.mark.slow()
def test_ogr_gml_76():

    with gdal.quiet_errors():
        ds = ogr.Open("/vsisparse/data/gml/huge_attribute_gml_sparse.xml")
        if ds is not None:
            lyr = ds.GetLayer(0)
            lyr.GetNextFeature()

        ds = ogr.Open("/vsisparse/data/gml/huge_geom_gml_sparse.xml")
        if ds is not None:
            lyr = ds.GetLayer(0)
            lyr.GetNextFeature()


###############################################################################
# Test interpretation of http://www.opengis.net/def/crs/EPSG/0/ URLs (#6678)


def test_ogr_gml_77(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "ogr_gml_77.xml",
        """<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:ogr="http://ogr.maptools.org/"
     xmlns:gml="http://www.opengis.net/gml">
  <ogr:featureMember>
    <ogr:point gml:id="point.0">
      <ogr:geometryProperty><gml:Point srsName="http://www.opengis.net/def/crs/EPSG/0/4326"><gml:pos>49 2</gml:pos></gml:Point></ogr:geometryProperty>
      <ogr:id>1</ogr:id>
    </ogr:point>
  </ogr:featureMember>
</ogr:FeatureCollection>
""",
    )

    ds = ogr.Open(tmp_vsimem / "ogr_gml_77.xml")
    lyr = ds.GetLayer(0)
    assert lyr.GetSpatialRef().GetDataAxisToSRSAxisMapping() == [2, 1]
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (2 49)"
    ds = None

    ds = gdal.OpenEx(
        tmp_vsimem / "ogr_gml_77.xml", open_options=["SWAP_COORDINATES=YES"]
    )
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (2 49)"
    ds = None

    ds = gdal.OpenEx(
        tmp_vsimem / "ogr_gml_77.xml", open_options=["SWAP_COORDINATES=NO"]
    )
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (49 2)"
    ds = None


###############################################################################
# Test effect of SWAP_COORDINATES (#6678)


def test_ogr_gml_78(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "ogr_gml_78.xml",
        """<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:ogr="http://ogr.maptools.org/"
     xmlns:gml="http://www.opengis.net/gml">
  <ogr:featureMember>
    <ogr:point gml:id="point.0">
      <ogr:geometryProperty><gml:Point srsName="EPSG:4326"><gml:pos>2 49</gml:pos></gml:Point></ogr:geometryProperty>
      <ogr:id>1</ogr:id>
    </ogr:point>
  </ogr:featureMember>
</ogr:FeatureCollection>
""",
    )

    ds = ogr.Open(tmp_vsimem / "ogr_gml_78.xml")
    lyr = ds.GetLayer(0)
    assert lyr.GetSpatialRef().GetDataAxisToSRSAxisMapping() == [2, 1]
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (2 49)"
    ds = None

    ds = gdal.OpenEx(
        tmp_vsimem / "ogr_gml_78.xml", open_options=["SWAP_COORDINATES=YES"]
    )
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (49 2)"
    ds = None

    ds = gdal.OpenEx(
        tmp_vsimem / "ogr_gml_78.xml", open_options=["SWAP_COORDINATES=NO"]
    )
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POINT (2 49)"
    ds = None


###############################################################################
# Test SRSNAME_FORMAT


def test_ogr_gml_79(tmp_vsimem):

    sr = osr.SpatialReference()
    sr.ImportFromEPSG(4326)

    tests = [
        ["SHORT", "EPSG:4326", "2 49"],
        ["OGC_URN", "urn:ogc:def:crs:EPSG::4326", "49 2"],
        ["OGC_URL", "http://www.opengis.net/def/crs/EPSG/0/4326", "49 2"],
    ]
    for (srsname_format, expected_srsname, expected_coords) in tests:

        ds = ogr.GetDriverByName("GML").CreateDataSource(
            tmp_vsimem / "ogr_gml_79.xml",
            options=["FORMAT=GML3", "SRSNAME_FORMAT=" + srsname_format],
        )
        lyr = ds.CreateLayer("firstlayer", srs=sr)
        feat = ogr.Feature(lyr.GetLayerDefn())
        geom = ogr.CreateGeometryFromWkt("POINT (2 49)")
        feat.SetGeometry(geom)
        lyr.CreateFeature(feat)
        ds = None

        f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_79.xml", "rb")
        if f is not None:
            data = gdal.VSIFReadL(1, 10000, f).decode("utf-8")
            gdal.VSIFCloseL(f)

        assert expected_srsname in data and expected_coords in data, srsname_format


###############################################################################
# Test null / unset


def test_ogr_gml_80(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(tmp_vsimem / "ogr_gml_80.xml")
    lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)
    lyr.CreateField(ogr.FieldDefn("int_field", ogr.OFTInteger))

    f = ogr.Feature(lyr.GetLayerDefn())
    f["int_field"] = 4
    lyr.CreateFeature(f)

    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetFieldNull("int_field")
    lyr.CreateFeature(f)

    f = ogr.Feature(lyr.GetLayerDefn())
    lyr.CreateFeature(f)
    f = None
    ds = None

    ds = ogr.Open(tmp_vsimem / "ogr_gml_80.xml")
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    if f["int_field"] != 4:
        f.DumpReadable()
        pytest.fail()

    f = lyr.GetNextFeature()
    if f["int_field"] is not None:
        f.DumpReadable()
        pytest.fail()

    f = lyr.GetNextFeature()
    if f.IsFieldSet("int_field"):
        f.DumpReadable()
        pytest.fail()
    f = None
    ds = None


###############################################################################
# Test building a .gfs with a field with xsi:nil="true" (#7027)


def test_ogr_gml_81(tmp_path):

    shutil.copy("data/gml/test_xsi_nil_gfs.gml", tmp_path)

    ds = ogr.Open(tmp_path / "test_xsi_nil_gfs.gml")
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    if f.GetField("intval") != 1:
        f.DumpReadable()
        pytest.fail()
    ds = None


###############################################################################
# Test GML_FEATURE_COLLECTION=YES


def test_ogr_gml_82(tmp_vsimem):

    gdal.VectorTranslate(
        tmp_vsimem / "ogr_gml_82.gml",
        "data/poly.shp",
        format="GML",
        datasetCreationOptions=["FORMAT=GML3", "GML_FEATURE_COLLECTION=YES"],
    )

    ds = ogr.Open(tmp_vsimem / "ogr_gml_82.gml")
    lyr = ds.GetLayer(0)
    assert lyr.GetFeatureCount() == 10
    ds = None

    f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_82.gml", "rb")
    if f is not None:
        data = gdal.VSIFReadL(1, 10000, f).decode("utf-8")
        gdal.VSIFCloseL(f)
    assert "gml:FeatureCollection" in data

    f = gdal.VSIFOpenL(tmp_vsimem / "ogr_gml_82.xsd", "rb")
    if f is not None:
        data = gdal.VSIFReadL(1, 10000, f).decode("utf-8")
        gdal.VSIFCloseL(f)
    assert 'name = "FeatureCollection"' not in data
    assert "gmlsf" not in data


###############################################################################


def test_ogr_gml_gml2_write_geometry_error(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(
        tmp_vsimem / "ogr_gml_83.gml", options=["FORMAT=GML2"]
    )
    lyr = ds.CreateLayer("test")
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt("GEOMETRYCOLLECTION(POINT(0 0), TIN EMPTY)")
    )
    with gdal.quiet_errors():
        lyr.CreateFeature(f)
    ds = None


###############################################################################


def test_ogr_gml_srsname_only_on_top_bounded_by(tmp_vsimem):

    tmpname = tmp_vsimem / "test_ogr_gml_srsname_only_on_top_bounded_by.xml"
    gdal.FileFromMemBuffer(
        tmpname,
        """<?xml version="1.0" encoding="utf-8" ?>
<ogr:FeatureCollection
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://ogr.maptools.org/ out.xsd"
     xmlns:ogr="http://ogr.maptools.org/"
     xmlns:gml="http://www.opengis.net/gml">
  <gml:boundedBy>
    <gml:Envelope srsName="EPSG:27700">
      <gml:lowerCorner>0 0</gml:lowerCorner>
      <gml:upperCorner>1 1</gml:upperCorner>
    </gml:Envelope>
  </gml:boundedBy>
  <gml:featureMember>
    <ogr:poly fid="poly.0">
      <ogr:geometryProperty><gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates>0,0 0,1 1,1 1,0 0,0</gml:coordinates></gml:LinearRing></gml:outerBoundaryIs></gml:Polygon></ogr:geometryProperty>
    </ogr:poly>
  </gml:featureMember>
</<ogr:FeatureCollection>""",
    )

    # Open once to generate .gfs
    ds = ogr.Open(tmpname)
    lyr = ds.GetLayer(0)
    assert "27700" in lyr.GetSpatialRef().ExportToWkt()
    ds = None

    # Open another time to read .gfs
    ds = ogr.Open(tmpname)
    lyr = ds.GetLayer(0)
    assert "27700" in lyr.GetSpatialRef().ExportToWkt()
    ds = None


###############################################################################
# Test understanding of XSD that uses 'FeatureType' suffix instead of 'Type'.
# If schema was understood, fields 2/3/4 will be 'Real' rather than 'Integer'.


def test_ogr_gml_featuretype_suffix_in_xsd(tmp_path):

    shutil.copy("data/gml/arcgis-world-wfs.gml", tmp_path)

    ds = ogr.Open(f"{tmp_path}/arcgis-world-wfs.gml,xsd=data/gml/arcgis-world-wfs.xsd")
    lyr = ds.GetLayer(0)

    for i in range(2, 4):
        assert lyr.GetLayerDefn().GetFieldDefn(i).GetType() == ogr.OFTReal


###############################################################################


def test_ogr_gml_standalone_geom():

    ds = ogr.Open("data/gml/standalone_geometry.gml")
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "POLYGON ((2 49,3 49,3 48,2 48,2 49))"


###############################################################################
# Test unique fields


@pytest.mark.parametrize("gml_format", ["GML2", "GML3", "GML3.2"])
@pytest.mark.parametrize("constraint_met", [True, False])
def test_ogr_gml_unique(tmp_vsimem, have_gml_validation, gml_format, constraint_met):

    ds = ogr.GetDriverByName("GML").CreateDataSource(
        tmp_vsimem / "test_ogr_gml_unique.gml", options=["FORMAT=" + gml_format]
    )
    lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)
    field_defn = ogr.FieldDefn("field_not_unique", ogr.OFTString)
    lyr.CreateField(field_defn)
    field_defn = ogr.FieldDefn("field_unique", ogr.OFTString)
    field_defn.SetUnique(True)
    lyr.CreateField(field_defn)
    f = ogr.Feature(lyr.GetLayerDefn())
    f["field_unique"] = "foo"
    lyr.CreateFeature(f)
    f = ogr.Feature(lyr.GetLayerDefn())
    f["field_unique"] = "bar" if constraint_met else "foo"
    lyr.CreateFeature(f)
    f = None
    ds = None

    ds = gdal.OpenEx(tmp_vsimem / "test_ogr_gml_unique.gml")
    lyr = ds.GetLayerByName("test")
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("field_not_unique"))
        .IsUnique()
        == 0
    )
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("field_unique"))
        .IsUnique()
        == 1
    )
    ds = None

    if have_gml_validation:
        if constraint_met:
            validate(tmp_vsimem / "test_ogr_gml_unique.gml")
        else:
            with gdal.quiet_errors():
                with pytest.raises(Exception):
                    validate(tmp_vsimem / "test_ogr_gml_unique.gml")


###############################################################################


def test_ogr_gml_write_gfs_no(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "test.gml", open("data/gml/expected_gml_gml32.gml", "rb").read()
    )

    assert gdal.OpenEx(tmp_vsimem / "test.gml") is not None
    assert gdal.VSIStatL(tmp_vsimem / "test.gfs") is not None
    gdal.Unlink(tmp_vsimem / "test.gfs")

    assert (
        gdal.OpenEx(tmp_vsimem / "test.gml", open_options=["WRITE_GFS=NO"]) is not None
    )
    assert gdal.VSIStatL(tmp_vsimem / "test.gfs") is None


###############################################################################


def test_ogr_gml_write_gfs_yes(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "test.gml", open("data/gml/expected_gml_gml32.gml", "rb").read()
    )
    gdal.FileFromMemBuffer(
        tmp_vsimem / "test.xsd", open("data/gml/expected_gml_gml32.xsd", "rb").read()
    )

    assert gdal.OpenEx(tmp_vsimem / "test.gml") is not None
    assert gdal.VSIStatL(tmp_vsimem / "test.gfs") is None

    assert (
        gdal.OpenEx(tmp_vsimem / "test.gml", open_options=["WRITE_GFS=YES"]) is not None
    )
    assert gdal.VSIStatL(tmp_vsimem / "test.gfs") is not None


###############################################################################


def test_ogr_gml_no_gfs_rewriting(tmp_vsimem):

    gdal.FileFromMemBuffer(
        tmp_vsimem / "test.gml", open("data/gml/expected_gml_gml32.gml", "rb").read()
    )

    assert gdal.OpenEx(tmp_vsimem / "test.gml") is not None
    assert gdal.VSIStatL(tmp_vsimem / "test.gfs") is not None

    f = gdal.VSIFOpenL(tmp_vsimem / "test.gfs", "rb+")
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFSeekL(f, 0, 0)
    data += b"<!-- mycomment -->"
    gdal.VSIFWriteL(data, 1, len(data), f)
    gdal.VSIFCloseL(f)

    assert gdal.OpenEx(tmp_vsimem / "test.gml") is not None

    f = gdal.VSIFOpenL(tmp_vsimem / "test.gfs", "rb+")
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)

    assert b"<!-- mycomment -->" in data


###############################################################################
# Read AIXM ElevatedSurface


def test_ogr_gml_aixm_elevated_surface(tmp_path):

    shutil.copy("data/gml/aixm_ElevatedSurface.xml", tmp_path)

    ds = ogr.Open(tmp_path / "aixm_ElevatedSurface.xml")
    lyr = ds.GetLayer(0)

    assert lyr.GetExtent() == (2, 3, 49, 50)

    feat = lyr.GetNextFeature()
    geom = feat.GetGeometryRef()
    got_wkt = geom.ExportToWkt()
    assert got_wkt == "POLYGON ((2 49,3 49,3 50,2 49))"

    ds = None


###############################################################################
# Test support for XML comment srsName="" in .xsd


@pytest.mark.parametrize("gml_format", ["GML2", "GML3", "GML3.2"])
def test_ogr_gml_srs_name_in_xsd(tmp_vsimem, gml_format):

    filename = tmp_vsimem / "test_ogr_gml_srs_name_in_xsd.gml"
    xsdfilename = filename.with_suffix(".xsd")

    ds = ogr.GetDriverByName("GML").CreateDataSource(
        filename, options=["FORMAT=" + gml_format]
    )
    srs = osr.SpatialReference()
    srs.ImportFromEPSG(4326)
    lyr = ds.CreateLayer("test", srs=srs, geom_type=ogr.wkbMultiPolygon)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(
        ogr.CreateGeometryFromWkt("MULTIPOLYGON (((2 49,2 50,3 50,2 49)))")
    )
    lyr.CreateFeature(f)
    f = None
    ds = None

    f = gdal.VSIFOpenL(xsdfilename, "rb")
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)

    if gml_format == "GML2":
        assert b'<!-- srsName="EPSG:4326" -->' in data
    else:
        assert b'<!-- srsName="urn:ogc:def:crs:EPSG::4326" -->' in data

    ds = ogr.Open(filename)
    lyr = ds.GetLayer(0)
    srs = lyr.GetSpatialRef()
    assert srs.GetAuthorityCode(None) == "4326"
    assert srs.GetDataAxisToSRSAxisMapping() == [2, 1]
    f = lyr.GetNextFeature()
    assert f.GetGeometryRef().ExportToWkt() == "MULTIPOLYGON (((2 49,2 50,3 50,2 49)))"
    f = None
    ds = None


###############################################################################


def test_ogr_gml_too_nested(tmp_path):

    shutil.copy("data/gml/too_nested.gml", tmp_path)

    with gdal.quiet_errors():
        ds = ogr.Open(tmp_path / "too_nested.gml")
        lyr = ds.GetLayer(0)
        assert lyr.GetNextFeature() is None

    assert not os.path.exists(tmp_path / "too_nested.gfs")

    with gdaltest.config_option("OGR_GML_NESTING_LEVEL", "UNLIMITED"):
        ds = ogr.Open(tmp_path / "too_nested.gml")
        lyr = ds.GetLayer(0)
        assert lyr.GetNextFeature() is not None


###############################################################################


def test_ogr_gml_first_feature_without_geometry(tmp_vsimem):

    tmpfilename = tmp_vsimem / "first_feature_without_geometry.gml"
    gdal.FileFromMemBuffer(
        tmpfilename, open("data/gml/first_feature_without_geometry.gml", "rb").read()
    )

    ds = ogr.Open(tmpfilename)
    assert ds.GetLayer(0).GetGeomType() == ogr.wkbPoint


###############################################################################
# Test FORCE_SRS_DETECTION open option on dataset with multiple geometry fields


def test_ogr_gml_force_srs_detection_multiple_geom_fields():

    # With .xsd
    ds = gdal.OpenEx(
        "data/gml/multiple_geometry_fields_srs_detection.gml",
        open_options=["FORCE_SRS_DETECTION=YES"],
    )
    lyr = ds.GetLayer(0)
    assert lyr.GetLayerDefn().GetGeomFieldDefn(0).GetSpatialRef() is None
    assert (
        lyr.GetLayerDefn().GetGeomFieldDefn(1).GetSpatialRef().GetAuthorityCode(None)
        == "32631"
    )
    assert (
        lyr.GetLayerDefn().GetGeomFieldDefn(2).GetSpatialRef().GetAuthorityCode(None)
        == "32632"
    )
    assert lyr.GetLayerDefn().GetGeomFieldDefn(3).GetSpatialRef() is None


###############################################################################
# Test reading a file with a .xsd schema, but whose features use
# gml:description, gml:identifier and gml:name


def test_ogr_gml_read_feature_with_gml_description():

    ds = gdal.OpenEx("data/gml/feature_with_gml_description.gml")
    assert ds.GetMetadataItem("DESCRIPTION") == "toplevel description"
    assert ds.GetMetadataItem("NAME") == "toplevel name"
    lyr = ds.GetLayer(0)
    lyr_defn = lyr.GetLayerDefn()
    assert [
        lyr_defn.GetFieldDefn(i).GetName() for i in range(lyr_defn.GetFieldCount())
    ] == ["gml_id", "description", "identifier", "name", "bar", "not_found_in_gml"]
    f = lyr.GetNextFeature()
    assert f["gml_id"] == "foo.0"
    assert f["description"] == "gml_description"
    assert f["identifier"] == "gml_identifier"
    assert f["name"] == "gml_name"
    assert f["bar"] == 1


###############################################################################
# Test reading a file with srsDimension="3" only on top gml:Envelope (#6986)


def test_ogr_gml_read_srsDimension_3_on_top_gml_Envelope():

    ds = gdal.OpenEx("data/gml/global_srsDimension_3.gml")
    lyr = ds.GetLayer(0)
    f = lyr.GetNextFeature()
    assert (
        f.GetGeometryRef().ExportToIsoWkt()
        == "LINESTRING Z (1 2 3,4 5 6,7 8 9,10 11 12)"
    )


###############################################################################
# Test reading a file with only a boundedBy property in features without
# a regular geometry field


def test_ogr_gml_read_boundedby_only(tmp_path):

    gml_fname = tmp_path / "only_boundedby.gml"
    shutil.copy("data/gml/only_boundedby.gml", gml_fname)

    def check_no_options():
        ds = gdal.OpenEx(gml_fname)
        lyr = ds.GetLayer(0)
        assert lyr.GetGeomType() == ogr.wkbNone
        ds = None

    assert not gml_fname.with_suffix(".gfs").exists()
    check_no_options()
    assert gml_fname.with_suffix(".gfs").exists()

    def check():
        ds = gdal.OpenEx(tmp_path / "only_boundedby.gml", open_options=["USE_BBOX=YES"])
        lyr = ds.GetLayer(0)
        assert lyr.GetLayerDefn().GetGeomFieldCount() == 1
        assert lyr.GetGeomType() == ogr.wkbPolygon
        assert lyr.GetGeometryColumn() == "boundedBy"
        assert lyr.GetExtent() == (0, 2, 1, 3)
        f = lyr.GetNextFeature()
        assert f["fid"] == "fid1"
        assert f.GetGeometryRef().ExportToIsoWkt() == "POLYGON ((0 1,2 1,2 3,0 3,0 1))"
        f = lyr.GetNextFeature()
        assert f["fid"] == "fid2"
        assert f.GetGeometryRef() is None
        ds = None

    gml_fname.with_suffix(".gfs").unlink()
    check()

    # This time with .gfs
    assert gml_fname.with_suffix(".gfs").exists()
    check()


###############################################################################
# Test reading a file with only a boundedBy property in features without
# a regular geometry field. And when it contains only gml:null


def test_ogr_gml_read_boundedby_only_gml_null_only(tmp_path):

    shutil.copy("data/gml/only_boundedby_only_null.gml", tmp_path)

    def check():
        ds = gdal.OpenEx(
            tmp_path / "only_boundedby_only_null.gml", open_options=["USE_BBOX=YES"]
        )
        lyr = ds.GetLayer(0)
        assert lyr.GetLayerDefn().GetGeomFieldCount() == 0
        f = lyr.GetNextFeature()
        assert f["fid"] == "fid1"
        assert f.GetGeometryRef() is None
        ds = None

    check()

    # This time with .gfs
    assert os.path.exists(tmp_path / "only_boundedby_only_null.gfs")
    check()


###############################################################################
# Test bug fix for https://github.com/OSGeo/gdal/pull/4397
# where there are several layers with features with gml:boundedBy elements
# and geometries in elements with different names


def test_ogr_gml_read_bbox_and_several_geom_elements(tmp_path):

    shutil.copy("data/gml/bbox_and_several_geom_elements.gml", tmp_path)

    def check():
        ds = gdal.OpenEx(
            tmp_path / "bbox_and_several_geom_elements.gml",
            open_options=["USE_BBOX=YES"],
        )
        lyr = ds.GetLayer(0)
        assert lyr.GetGeometryColumn() == "geom1"
        assert lyr.GetGeomType() == ogr.wkbMultiPolygon
        f = lyr.GetNextFeature()
        assert f.GetGeometryRef().GetGeometryType() == ogr.wkbMultiPolygon
        lyr = ds.GetLayer(1)
        assert lyr.GetGeometryColumn() == "geom2"
        assert lyr.GetGeomType() == ogr.wkbPoint
        f = lyr.GetNextFeature()
        assert f.GetGeometryRef().GetGeometryType() == ogr.wkbPoint
        ds = None

    check()

    # This time with .gfs
    assert os.path.exists(tmp_path / "bbox_and_several_geom_elements.gfs")
    check()


###############################################################################
# Test reading a file with only a boundedBy property in features that is
# invalid


def test_ogr_gml_read_boundedby_invalid():

    with gdal.quiet_errors():
        ds = gdal.OpenEx(
            "data/gml/only_boundedby_invalid.gml", open_options=["USE_BBOX=YES"]
        )
        lyr = ds.GetLayer(0)
        assert lyr.GetFeatureCount() == 0


###############################################################################
# Test reading a file with 2 boundedBy property in features: a first empty one,
# and a second valid one (this mostly tests we don't crash)


def test_ogr_gml_read_boundedby_repeated():

    ds = gdal.OpenEx(
        "data/gml/only_boundedby_repeated.gml", open_options=["USE_BBOX=YES"]
    )
    lyr = ds.GetLayer(0)
    assert lyr.GetFeatureCount() == 1


###############################################################################
# Test field comments


def test_ogr_gml_field_comment(tmp_vsimem):

    ds = ogr.GetDriverByName("GML").CreateDataSource(
        tmp_vsimem / "test_ogr_gml_field_comment.gml"
    )
    lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)
    for t in (
        ogr.OFTInteger,
        ogr.OFTInteger64,
        ogr.OFTReal,
        ogr.OFTString,
        ogr.OFTIntegerList,
        ogr.OFTInteger64List,
        ogr.OFTRealList,
        ogr.OFTStringList,
        ogr.OFTDateTime,
        ogr.OFTDate,
        ogr.OFTTime,
    ):
        field_defn = ogr.FieldDefn("field%d" % lyr.GetLayerDefn().GetFieldCount(), t)
        field_defn.SetComment("comment <>")
        lyr.CreateField(field_defn)
    ds = None

    ds = gdal.OpenEx(tmp_vsimem / "test_ogr_gml_field_comment.gml")
    lyr = ds.GetLayer(0)
    for i in range(1, lyr.GetLayerDefn().GetFieldCount()):
        assert lyr.GetLayerDefn().GetFieldDefn(i).GetComment() == "comment <>"
    ds = None


###############################################################################
# Test field comments


def test_ogr_gml_field_comment_from_gfs():

    ds = gdal.OpenEx("data/gml/testcomment.gml")
    lyr = ds.GetLayer(0)
    assert (
        lyr.GetLayerDefn()
        .GetFieldDefn(lyr.GetLayerDefn().GetFieldIndex("name"))
        .GetComment()
        == "my comment"
    )
    ds = None


###############################################################################
# Test modification-time-dependent reading of GFS file


def test_ogr_gml_ignore_old_gfs(tmp_path):

    if sys.platform != "linux":
        pytest.skip("Requires Linux")

    shutil.copy("data/gml/ionic_wfs.gml", tmp_path)

    gml_fname = tmp_path / "ionic_wfs.gml"
    gfs_fname = gml_fname.with_suffix(".gfs")

    with open(gfs_fname, "w") as gfs_out:
        gfs_contents = open("data/gml/ionic_wfs.gfs", "r").read()

        gfs_contents = gfs_contents.replace("<Width>0</Width>", "<Width>22</Width>")

        gfs_out.write(gfs_contents)

    with ogr.Open(gml_fname) as ds:
        lyr = ds.GetLayer(0)
        defn = lyr.GetLayerDefn()

        width = defn.GetFieldDefn(1).GetWidth()

        assert width == 22

    os.system(f'touch -d "1970-01-01 00:00:01" {gfs_fname}')

    # When gfs file is older than the gml, we ignore it

    with ogr.Open(gml_fname) as ds:
        lyr = ds.GetLayer(0)
        defn = lyr.GetLayerDefn()

        width = defn.GetFieldDefn(1).GetWidth()

        assert width == 10


###############################################################################
# Test geometry coordinate precision support


def test_ogr_gml_geom_coord_precision(tmp_vsimem):

    filename = str(tmp_vsimem / "test.gml")
    ds = gdal.GetDriverByName("GML").Create(filename, 0, 0, 0, gdal.GDT_Unknown)
    geom_fld = ogr.GeomFieldDefn("my_geom_field", ogr.wkbUnknown)
    prec = ogr.CreateGeomCoordinatePrecision()
    prec.Set(1e-5, 1e-3, 0)
    geom_fld.SetCoordinatePrecision(prec)
    geom_fld.SetNullable(False)
    lyr = ds.CreateLayerFromGeomFieldDefn("test", geom_fld)
    geom_fld = lyr.GetLayerDefn().GetGeomFieldDefn(0)
    prec = geom_fld.GetCoordinatePrecision()
    assert prec.GetXYResolution() == 1e-5
    assert prec.GetZResolution() == 1e-3
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POINT(1.23456789 2.34567891)"))
    lyr.CreateFeature(f)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(ogr.CreateGeometryFromWkt("POINT(1.23456789 2.34567891 9.87654321)"))
    lyr.CreateFeature(f)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometry(
        ogr.CreateGeometryFromWkt(
            "LINESTRING(1.23456789 2.34567891 9.87654321,1.23456789 2.34567891 9.87654321)"
        )
    )
    lyr.CreateFeature(f)
    ds.Close()

    f = gdal.VSIFOpenL(filename, "rb")
    assert f
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)

    assert (
        b"""\n  <gml:boundedBy><gml:Envelope srsDimension="3"><gml:lowerCorner>1.23457 2.34568 0.0</gml:lowerCorner><gml:upperCorner>1.23457 2.34568 9.877</gml:upperCorner></gml:Envelope></gml:boundedBy>"""
        in data
    )
    assert (
        b"""\n      <gml:boundedBy><gml:Envelope srsDimension="3"><gml:lowerCorner>1.23457 2.34568 9.877</gml:lowerCorner><gml:upperCorner>1.23457 2.34568 9.877</gml:upperCorner></gml:Envelope></gml:boundedBy>"""
        in data
    )
    assert b"""<gml:pos>1.23457 2.34568</gml:pos>""" in data
    assert b"""<gml:pos>1.23457 2.34568 9.877</gml:pos>""" in data
    assert (
        b"""<gml:posList srsDimension="3">1.23457 2.34568 9.877 1.23457 2.34568 9.877</gml:posList>"""
        in data
    )

    f = gdal.VSIFOpenL(filename[0:-3] + "xsd", "rb")
    assert f
    data = gdal.VSIFReadL(1, 10000, f)
    gdal.VSIFCloseL(f)
    assert b"<ogr:xy_coordinate_resolution>" in data
    assert b"<ogr:z_coordinate_resolution>" in data

    ds = ogr.Open(filename)
    lyr = ds.GetLayer(0)
    geom_fld = lyr.GetLayerDefn().GetGeomFieldDefn(0)
    assert geom_fld.GetName() == "my_geom_field"
    assert not geom_fld.IsNullable()
    prec = geom_fld.GetCoordinatePrecision()
    assert prec.GetXYResolution() == 1e-5
    assert prec.GetZResolution() == 1e-3


###############################################################################
# Test weird scenario of https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=68850


def test_ogr_gml_geom_link_to_immediate_child():

    ds = gdal.OpenEx(
        "data/gml/link_to_immediate_child.gml", open_options=["WRITE_GFS=NO"]
    )
    assert ds


###############################################################################
# Test scenario of https://github.com/OSGeo/gdal/issues/10332


@pytest.mark.parametrize("use_create_geom_field", [False, True])
@pytest.mark.parametrize("has_srs", [False, True])
def test_ogr_gml_ogr2ogr_from_layer_with_name_geom_field(
    tmp_vsimem, use_create_geom_field, has_srs
):

    ds = gdal.GetDriverByName("Memory").Create("", 0, 0, 0, gdal.GDT_Unknown)
    if has_srs:
        srs = osr.SpatialReference()
        srs.ImportFromEPSG(4326)
        srs.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER)
    else:
        srs = None
    if use_create_geom_field:
        lyr = ds.CreateLayer("test", geom_type=ogr.wkbNone)
        my_geom_field = ogr.GeomFieldDefn("my_geom", ogr.wkbUnknown)
        my_geom_field.SetSpatialRef(srs)
        lyr.CreateGeomField(my_geom_field)
    else:
        lyr = ds.CreateLayer("test", geom_type=ogr.wkbUnknown, srs=srs)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(ogr.CreateGeometryFromWkt("POINT(2 49)"))
    lyr.CreateFeature(f)
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(ogr.CreateGeometryFromWkt("POINT(3 50)"))
    lyr.CreateFeature(f)

    out_filename = str(tmp_vsimem / "out.gml")
    gdal.VectorTranslate(out_filename, ds, format="GML")

    f = gdal.VSIFOpenL(out_filename, "rb")
    assert f
    try:
        data = gdal.VSIFReadL(1, 10000, f)
    finally:
        gdal.VSIFCloseL(f)

    if has_srs:
        assert (
            b'<gml:boundedBy><gml:Envelope srsName="urn:ogc:def:crs:EPSG::4326"><gml:lowerCorner>49 2</gml:lowerCorner><gml:upperCorner>50 3</gml:upperCorner></gml:Envelope></gml:boundedBy>'
            in data
        )
    else:
        assert (
            b"<gml:boundedBy><gml:Envelope><gml:lowerCorner>2 49</gml:lowerCorner><gml:upperCorner>3 50</gml:upperCorner></gml:Envelope></gml:boundedBy>"
            in data
        )


###############################################################################


@pytest.mark.parametrize("first_layer_has_srs", [False, True])
def test_ogr_gml_ogr2ogr_from_layers_with_inconsistent_srs(
    tmp_vsimem, first_layer_has_srs
):

    ds = gdal.GetDriverByName("Memory").Create("", 0, 0, 0, gdal.GDT_Unknown)
    srs = osr.SpatialReference()
    srs.ImportFromEPSG(4326)
    srs.SetAxisMappingStrategy(osr.OAMS_TRADITIONAL_GIS_ORDER)
    lyr = ds.CreateLayer(
        "test", geom_type=ogr.wkbUnknown, srs=(srs if first_layer_has_srs else None)
    )
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(ogr.CreateGeometryFromWkt("POINT(2 49)"))
    lyr.CreateFeature(f)

    lyr = ds.CreateLayer(
        "test2", geom_type=ogr.wkbUnknown, srs=(None if first_layer_has_srs else srs)
    )
    f = ogr.Feature(lyr.GetLayerDefn())
    f.SetGeometryDirectly(ogr.CreateGeometryFromWkt("POINT(3 50)"))
    lyr.CreateFeature(f)

    out_filename = str(tmp_vsimem / "out.gml")
    gdal.VectorTranslate(out_filename, ds, format="GML")

    f = gdal.VSIFOpenL(out_filename, "rb")
    assert f
    try:
        data = gdal.VSIFReadL(1, 10000, f)
    finally:
        gdal.VSIFCloseL(f)

    assert b"<gml:boundedBy><gml:Null /></gml:boundedBy>" in data
