src/testutils/testfilemanager.cpp

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  36 /*! \internal \file
  37  * \brief
  38  * Implements gmx::test::TestFileManager.
  39  *
  40  * \author Teemu Murtola <teemu.murtola@gmail.com>
  41  * \ingroup module_testutils
  42  */
  43 #include "gmxpre.h"
  44
  45 #include "testfilemanager.h"
  46
  47 #include <cstdio>
  48
  49 #include <algorithm>
  50 #include <set>
  51 #include <string>
  52
  53 #include <gtest/gtest.h>
  54
  55 #include "gromacs/options/basicoptions.h"
  56 #include "gromacs/options/ioptionscontainer.h"
  57 #include "gromacs/utility/gmxassert.h"
  58 #include "gromacs/utility/path.h"
  59
  60 #include "testutils/testoptions.h"
  61
  62 namespace gmx
  63 {
  64 namespace test
  65 {
  66
  67 /********************************************************************
  68  * TestFileManager::Impl
  69  */
  70
  71 /*! \internal \brief
  72  * Private implementation class for TestFileManager.
  73  *
  74  * \ingroup module_testutils
  75  */
  76 class TestFileManager::Impl
  77 {
  78 public:
  79     //! Global test input data path set with setDataInputDirectory().
  80     static std::string s_inputDirectory;
  81
  82     //! Global path to simulation input database set with setTestSimulationDataBaseDirectory().
  83     static std::string s_simulationDatabaseDirectory;
  84
  85     //! Global temporary output directory for tests, set with setGlobalOutputTempDirectory().
  86     static const char* s_globalOutputTempDirectory;
  87
  88     //! Container type for names of temporary files.
  89     typedef std::set<std::string> FileNameList;
  90
  91     /*! \brief Constructor
  92      *
  93      * \param path Value for the outputTempDirectory, typically
  94      * set by default from s_globalOutputTempDirectory */
  95     explicit Impl(const char* path) : outputTempDirectory_(path)
  96     {
  97         GMX_RELEASE_ASSERT(Directory::exists(outputTempDirectory_),
  98                            "Directory for tests' temporary files does not exist");
  99     }
 100
 101     /*! \brief
 102      * Try to remove all temporary files.
 103      *
 104      * Does not throw; errors (e.g., missing files) are silently ignored.
 105      */
 106     void removeFiles();
 107
 108     //! List of unique paths returned by getTemporaryFilePath().
 109     FileNameList files_;
 110
 111     /*! \brief Temporary output directory local to the current
 112      * test, set by a test with setOutputTempDirectory() if the
 113      * global default is inappropriate. */
 114     std::string outputTempDirectory_;
 115 };
 116
 117 std::string TestFileManager::Impl::s_inputDirectory;
 118 std::string TestFileManager::Impl::s_simulationDatabaseDirectory;
 119 const char* TestFileManager::Impl::s_globalOutputTempDirectory = nullptr;
 120 /** Controls whether TestFileManager should delete temporary files
 121     after the test finishes. */
 122 static bool g_bDeleteFilesAfterTest = true;
 123
 124 //! \cond
 125 GMX_TEST_OPTIONS(TestFileManagerOptions, options)
 126 {
 127     options->addOption(
 128             BooleanOption("delete-temporary-files")
 129                     .store(&g_bDeleteFilesAfterTest)
 130                     .description(
 131                             "At the end of each test case, delete temporary and output files"));
 132 }
 133 //! \endcond
 134
 135 void TestFileManager::Impl::removeFiles()
 136 {
 137     FileNameList::const_iterator i;
 138     for (i = files_.begin(); i != files_.end(); ++i)
 139     {
 140         std::remove(i->c_str());
 141     }
 142     files_.clear();
 143 }
 144
 145 /********************************************************************
 146  * TestFileManager
 147  */
 148
 149 TestFileManager::TestFileManager() : impl_(new Impl(Impl::s_globalOutputTempDirectory)) {}
 150
 151 TestFileManager::~TestFileManager()
 152 {
 153     if (g_bDeleteFilesAfterTest)
 154     {
 155         impl_->removeFiles();
 156     }
 157 }
 158
 159 std::string TestFileManager::getTemporaryFilePath(const char* suffix)
 160 {
 161     /* Configure a temporary directory from CMake, so that temporary
 162      * output from a test goes to a location relevant to that
 163      * test. Currently, files whose names are returned by this method
 164      * get cleaned up (by default) at the end of all tests.
 165      */
 166     std::string filename = Path::join(getOutputTempDirectory(), getTestSpecificFileName(suffix));
 167     impl_->files_.insert(filename);
 168     return filename;
 169 }
 170
 171 std::string TestFileManager::getTemporaryFilePath(const std::string& suffix)
 172 {
 173     return getTemporaryFilePath(suffix.c_str());
 174 }
 175
 176 std::string TestFileManager::getTestSpecificFileNameRoot()
 177 {
 178     const ::testing::TestInfo* test_info = ::testing::UnitTest::GetInstance()->current_test_info();
 179     std::string                filenameRoot;
 180     if (test_info)
 181     {
 182         filenameRoot = std::string(test_info->test_case_name()) + "_" + test_info->name();
 183     }
 184     else
 185     {
 186         const ::testing::TestCase* test_case_info =
 187                 ::testing::UnitTest::GetInstance()->current_test_case();
 188         filenameRoot = std::string(test_case_info->name());
 189     }
 190     std::replace(filenameRoot.begin(), filenameRoot.end(), '/', '_');
 191     return filenameRoot;
 192 }
 193
 194 std::string TestFileManager::getTestSpecificFileName(const char* suffix)
 195 {
 196     std::string filename = getTestSpecificFileNameRoot();
 197     if (suffix[0] != '.')
 198     {
 199         filename.append("_");
 200     }
 201     filename.append(suffix);
 202     return filename;
 203 }
 204
 205 std::string TestFileManager::getInputFilePath(const char* filename)
 206 {
 207     // Check if file is present in local directory.
 208     if (File::exists(Path::join(getInputDataDirectory(), filename), File::returnFalseOnError))
 209     {
 210         return Path::join(getInputDataDirectory(), filename);
 211     }
 212     else if (File::exists(Path::join(getTestSimulationDatabaseDirectory(), filename), File::returnFalseOnError))
 213     {
 214         // Assume file is in global directory for simulation input files.
 215         return Path::join(getTestSimulationDatabaseDirectory(), filename);
 216     }
 217     else
 218     {
 219         // Assume file is present locally without full name (e.g. extension).
 220         return Path::join(getInputDataDirectory(), filename);
 221     }
 222 }
 223
 224 std::string TestFileManager::getInputFilePath(const std::string& filename)
 225 {
 226     return getInputFilePath(filename.c_str());
 227 }
 228
 229 const char* TestFileManager::getInputDataDirectory()
 230 {
 231     GMX_RELEASE_ASSERT(!Impl::s_inputDirectory.empty(), "Path for test input files is not set");
 232     return Impl::s_inputDirectory.c_str();
 233 }
 234
 235 const char* TestFileManager::getGlobalOutputTempDirectory()
 236 {
 237     GMX_RELEASE_ASSERT(Impl::s_globalOutputTempDirectory != nullptr,
 238                        "Global path for temporary output files from tests is not set");
 239     return Impl::s_globalOutputTempDirectory;
 240 }
 241
 242 const char* TestFileManager::getOutputTempDirectory() const
 243 {
 244     return impl_->outputTempDirectory_.c_str();
 245 }
 246
 247 const char* TestFileManager::getTestSimulationDatabaseDirectory()
 248 {
 249     GMX_RELEASE_ASSERT(!Impl::s_simulationDatabaseDirectory.empty(),
 250                        "Path for simulation input database directory is not set");
 251     return Impl::s_simulationDatabaseDirectory.c_str();
 252 }
 253
 254 void TestFileManager::setInputDataDirectory(const std::string& path)
 255 {
 256     // There is no need to protect this by a mutex, as this is called in early
 257     // initialization of the tests.
 258     GMX_RELEASE_ASSERT(Directory::exists(path), "Test data directory does not exist");
 259     Impl::s_inputDirectory = path;
 260 }
 261
 262 void TestFileManager::setTestSimulationDatabaseDirectory(const std::string& path)
 263 {
 264     // There is no need to protect this by a mutex, as this is called in early
 265     // initialization of the tests.
 266     GMX_RELEASE_ASSERT(Directory::exists(path), "Simulation database directory does not exist");
 267     Impl::s_simulationDatabaseDirectory = path;
 268 }
 269
 270 void TestFileManager::setGlobalOutputTempDirectory(const char* path)
 271 {
 272     // There is no need to protect this by a mutex, as this is called in early
 273     // initialization of the tests.
 274     GMX_RELEASE_ASSERT(Directory::exists(path),
 275                        "Directory for tests' temporary files does not exist");
 276     Impl::s_globalOutputTempDirectory = path;
 277 }
 278
 279 void TestFileManager::setOutputTempDirectory(const std::string& path)
 280 {
 281     // There could be a need to protect this with a mutex, since it is
 282     // intended to be used in test fixtures, not just during setup.
 283     GMX_RELEASE_ASSERT(Directory::exists(path),
 284                        "Directory for tests' temporary files does not exist");
 285     impl_->outputTempDirectory_ = path;
 286 }
 287
 288 } // namespace test
 289 } // namespace gmx