/*
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 * and the project initiators Erik Lindahl, Berk Hess and David van der Spoel.
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/*! \internal \file
 * \brief
 * Tests for gmx clustsize
 *
 * \todo These will be superseded by tests of the new style analysis
 * modules.
 *
 * \author David van der Spoel <david.vanderspoel@icm.uu.se>
 * \ingroup module_trajectoryanalysis
 */

#include "gmxpre.h"

#include <string>

#include "gromacs/gmxana/gmx_ana.h"

#include "testutils/cmdlinetest.h"
#include "testutils/refdata.h"
#include "testutils/testasserts.h"
#include "testutils/textblockmatchers.h"
#include "testutils/xvgtest.h"

namespace gmx
{

namespace test
{

namespace
{

class ClustsizeTest : public CommandLineTestBase
{
public:
    ClustsizeTest()
    {
        double         tolerance = 1e-4;
        test::XvgMatch xvg;
        test::XvgMatch& toler = xvg.tolerance(gmx::test::relativeToleranceAsFloatingPoint(1, tolerance));

        setOutputFile("-mc", ".xvg", toler);
        setOutputFile("-nc", ".xvg", toler);
        setOutputFile("-ac", ".xvg", toler);
        setOutputFile("-hc", ".xvg", toler);
        setInputFile("-f", "clustsize.pdb");
    }

    void runTest(const CommandLine& args)
    {
        CommandLine& cmdline = commandLine();
        cmdline.merge(args);

        gmx::test::TestReferenceChecker rootChecker(this->rootChecker());
        rootChecker.checkString(args.toString(), "CommandLine");

        ASSERT_EQ(0, gmx_clustsize(cmdline.argc(), cmdline.argv()));

        checkOutputFiles();
    }
};

TEST_F(ClustsizeTest, NoMolDefaultCutoff)
{
    const char* const command[] = { "clustsize" };
    CommandLine       args      = CommandLine(command);

    setInputFile("-n", "clustsize.ndx");

    runTest(args);
}

TEST_F(ClustsizeTest, NoMolShortCutoff)
{
    const char* const command[] = { "clustsize", "-cut", "0.3" };
    CommandLine       args      = CommandLine(command);

    setInputFile("-n", "clustsize.ndx");

    runTest(args);
}

TEST_F(ClustsizeTest, MolDefaultCutoff)
{
    const char* const command[] = { "clustsize", "-mol" };
    CommandLine       args      = CommandLine(command);

    setInputFile("-s", "clustsize.tpr");

    runTest(args);
}

TEST_F(ClustsizeTest, MolShortCutoff)
{
    const char* const command[] = { "clustsize", "-mol", "-cut", "0.3" };
    CommandLine       args      = CommandLine(command);

    setInputFile("-s", "clustsize.tpr");

    runTest(args);
}

TEST_F(ClustsizeTest, MolCSize)
{
    const char* const command[] = { "clustsize", "-mol", "-nlevels", "6" };
    CommandLine       args      = CommandLine(command);

    setOutputFile("-o", ".xpm", ExactTextMatch());
    setOutputFile("-ow", ".xpm", ExactTextMatch());

    setInputFile("-s", "clustsize.tpr");

    runTest(args);
}

} // namespace

} // namespace test

} // namespace gmx
