src/testutils/testinit.cpp

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  35 /*! \internal \file
  36  * \brief
  37  * Implements functions in testinit.h.
  38  *
  39  * \author Teemu Murtola <teemu.murtola@gmail.com>
  40  * \ingroup module_testutils
  41  */
  42 #include "gmxpre.h"
  43
  44 #include "testinit.h"
  45
  46 #include <cstdio>
  47 #include <cstdlib>
  48
  49 #include <memory>
  50
  51 #include <gmock/gmock.h>
  52
  53 #include "buildinfo.h"
  54 #include "gromacs/commandline/cmdlinehelpcontext.h"
  55 #include "gromacs/commandline/cmdlinehelpwriter.h"
  56 #include "gromacs/commandline/cmdlineinit.h"
  57 #include "gromacs/commandline/cmdlineparser.h"
  58 #include "gromacs/commandline/cmdlineprogramcontext.h"
  59 #include "gromacs/compat/make_unique.h"
  60 #include "gromacs/math/utilities.h"
  61 #include "gromacs/options/basicoptions.h"
  62 #include "gromacs/options/options.h"
  63 #include "gromacs/utility/basenetwork.h"
  64 #include "gromacs/utility/exceptions.h"
  65 #include "gromacs/utility/filestream.h"
  66 #include "gromacs/utility/futil.h"
  67 #include "gromacs/utility/path.h"
  68 #include "gromacs/utility/programcontext.h"
  69 #include "gromacs/utility/textwriter.h"
  70
  71 #include "testutils/mpi-printer.h"
  72 #include "testutils/refdata.h"
  73 #include "testutils/testfilemanager.h"
  74 #include "testutils/testoptions.h"
  75
  76 namespace gmx
  77 {
  78 namespace test
  79 {
  80
  81 namespace
  82 {
  83
  84 /*! \brief
  85  * Custom program context for test binaries.
  86  *
  87  * This context overrides the installationPrefix() implementation to always
  88  * load data files from the source directory, as the test binaries are never
  89  * installed.  It also support overriding the directory through a command-line
  90  * option to the test binary.
  91  *
  92  * \ingroup module_testutils
  93  */
  94 class TestProgramContext : public IProgramContext
  95 {
  96     public:
  97         /*! \brief
  98          * Initializes a test program context.
  99          *
 100          * \param[in] context  Current \Gromacs program context.
 101          */
 102         explicit TestProgramContext(const IProgramContext &context)
 103             : context_(context), dataPath_(CMAKE_SOURCE_DIR)
 104         {
 105         }
 106
 107         /*! \brief
 108          * Sets the source directory root from which to look for data files.
 109          */
 110         void overrideSourceRoot(const std::string &sourceRoot)
 111         {
 112             dataPath_ = sourceRoot;
 113         }
 114
 115         const char *programName() const override
 116         {
 117             return context_.programName();
 118         }
 119         const char *displayName() const override
 120         {
 121             return context_.displayName();
 122         }
 123         const char *fullBinaryPath() const override
 124         {
 125             return context_.fullBinaryPath();
 126         }
 127         InstallationPrefixInfo installationPrefix() const override
 128         {
 129             return InstallationPrefixInfo(dataPath_.c_str(), true);
 130         }
 131         const char *commandLine() const override
 132         {
 133             return context_.commandLine();
 134         }
 135
 136     private:
 137         const IProgramContext           &context_;
 138         std::string                      dataPath_;
 139 };
 140
 141 //! Prints the command-line options for the unit test binary.
 142 void printHelp(const Options &options)
 143 {
 144     const std::string &program = getProgramContext().displayName();
 145     std::fprintf(stderr,
 146                  "\nYou can use the following GROMACS-specific command-line flags\n"
 147                  "to control the behavior of the tests:\n\n");
 148     TextWriter             writer(&TextOutputFile::standardError());
 149     CommandLineHelpContext context(&writer, eHelpOutputFormat_Console, nullptr, program);
 150     context.setModuleDisplayName(program);
 151     CommandLineHelpWriter(options).writeHelp(context);
 152 }
 153
 154 //! Global program context instance for test binaries.
 155 // Never releases ownership.
 156 std::unique_ptr<TestProgramContext> g_testContext;
 157
 158 }       // namespace
 159
 160 //! \cond internal
 161 void initTestUtils(const char *dataPath, const char *tempPath, bool usesMpi,
 162                    bool usesHardwareDetection, int *argc, char ***argv)
 163 {
 164 #if !defined NDEBUG &&                                                  \
 165     !((defined __clang__ || (defined(__GNUC__) && !defined(__ICC) && __GNUC__ == 7)) \
 166     && defined __OPTIMIZE__)
 167     gmx_feenableexcept();
 168 #endif
 169     const CommandLineProgramContext &context = initForCommandLine(argc, argv);
 170     try
 171     {
 172         if (!usesMpi && gmx_node_num() > 1)
 173         {
 174             // We cannot continue, since some tests might be using
 175             // MPI_COMM_WORLD, which could deadlock if we would only
 176             // continue with the master rank here.
 177             if (gmx_node_rank() == 0)
 178             {
 179                 fprintf(stderr, "NOTE: You are running %s on %d MPI ranks, "
 180                         "but it is does not contain MPI-enabled tests. "
 181                         "The test will now exit.\n",
 182                         context.programName(), gmx_node_num());
 183             }
 184             finalizeForCommandLine();
 185             std::exit(1);
 186         }
 187         if (usesHardwareDetection)
 188         {
 189             callAddGlobalTestEnvironment();
 190         }
 191         g_testContext = gmx::compat::make_unique<TestProgramContext>(context);
 192         setProgramContext(g_testContext.get());
 193         // Use the default finder that does not respect GMXLIB, since the tests
 194         // generally can only get confused by a different set of data files.
 195         setLibraryFileFinder(nullptr);
 196         ::testing::InitGoogleMock(argc, *argv);
 197         if (dataPath != nullptr)
 198         {
 199             TestFileManager::setInputDataDirectory(
 200                     Path::join(CMAKE_SOURCE_DIR, dataPath));
 201         }
 202         if (tempPath != nullptr)
 203         {
 204             TestFileManager::setGlobalOutputTempDirectory(tempPath);
 205         }
 206         TestFileManager::setTestSimulationDatabaseDirectory(
 207                 GMX_TESTSIMULATIONDATABASE_DIR);
 208
 209         bool        bHelp = false;
 210         std::string sourceRoot;
 211         Options     options;
 212         // TODO: A single option that accepts multiple names would be nicer.
 213         // Also, we recognize -help, but GTest doesn't, which leads to a bit
 214         // unintuitive behavior.
 215         options.addOption(BooleanOption("h").store(&bHelp)
 216                               .description("Print GROMACS-specific unit test options"));
 217         options.addOption(BooleanOption("help").store(&bHelp).hidden());
 218         options.addOption(BooleanOption("?").store(&bHelp).hidden());
 219         // TODO: Make this into a FileNameOption (or a DirectoryNameOption).
 220         options.addOption(StringOption("src-root").store(&sourceRoot)
 221                               .description("Override source tree location (for data files)"));
 222         // The potential MPI test event listener must be initialized first,
 223         // because it should appear in the start of the event listener list,
 224         // before other event listeners that may generate test failures
 225         // (currently, such an event listener is used by the reference data
 226         // framework).
 227         if (usesMpi)
 228         {
 229             initMPIOutput();
 230         }
 231         // TODO: Consider removing this option from test binaries that do not need it.
 232         initReferenceData(&options);
 233         initTestOptions(&options);
 234         try
 235         {
 236             CommandLineParser(&options).parse(argc, *argv);
 237             options.finish();
 238         }
 239         catch (const UserInputError &)
 240         {
 241             printHelp(options);
 242             throw;
 243         }
 244         if (bHelp)
 245         {
 246             printHelp(options);
 247         }
 248         if (!sourceRoot.empty())
 249         {
 250             g_testContext->overrideSourceRoot(sourceRoot);
 251             TestFileManager::setInputDataDirectory(
 252                     Path::join(sourceRoot, dataPath));
 253         }
 254     }
 255     catch (const std::exception &ex)
 256     {
 257         printFatalErrorMessage(stderr, ex);
 258         int retcode = processExceptionAtExitForCommandLine(ex);
 259         // TODO: It could be nice to destroy things in proper order such that
 260         // g_testContext would not contain hanging references at this point,
 261         // but in practice that should not matter.
 262         g_testContext.reset();
 263         std::exit(retcode);
 264     }
 265 }
 266
 267 void finalizeTestUtils()
 268 {
 269     setProgramContext(nullptr);
 270     g_testContext.reset();
 271     finalizeForCommandLine();
 272 }
 273 //! \endcond
 274
 275 } // namespace test
 276 } // namespace gmx