src/testutils/cmdlinetest.cpp

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  36 /*! \internal \file
  37  * \brief
  38  * Implements classes from cmdlinetest.h.
  39  *
  40  * \author Teemu Murtola <teemu.murtola@gmail.com>
  41  * \ingroup module_testutils
  42  */
  43 #include "gmxpre.h"
  44
  45 #include "cmdlinetest.h"
  46
  47 #include <cstdlib>
  48 #include <cstring>
  49
  50 #include <memory>
  51 #include <new>
  52 #include <sstream>
  53 #include <vector>
  54
  55 #include "gromacs/commandline/cmdlinehelpcontext.h"
  56 #include "gromacs/commandline/cmdlineoptionsmodule.h"
  57 #include "gromacs/commandline/cmdlineprogramcontext.h"
  58 #include "gromacs/utility/arrayref.h"
  59 #include "gromacs/utility/futil.h"
  60 #include "gromacs/utility/gmxassert.h"
  61 #include "gromacs/utility/strconvert.h"
  62 #include "gromacs/utility/stringstream.h"
  63 #include "gromacs/utility/stringutil.h"
  64 #include "gromacs/utility/textreader.h"
  65 #include "gromacs/utility/textwriter.h"
  66
  67 #include "testutils/filematchers.h"
  68 #include "testutils/refdata.h"
  69 #include "testutils/testfilemanager.h"
  70
  71 namespace gmx
  72 {
  73 namespace test
  74 {
  75
  76 /********************************************************************
  77  * CommandLine::Impl
  78  */
  79
  80 class CommandLine::Impl
  81 {
  82 public:
  83     Impl(const ArrayRef<const char* const>& cmdline);
  84     Impl(const ArrayRef<const std::string>& cmdline);
  85     ~Impl();
  86
  87     std::vector<char*> args_;
  88     std::vector<char*> argv_;
  89     int                argc_;
  90 };
  91
  92 CommandLine::Impl::Impl(const ArrayRef<const char* const>& cmdline)
  93 {
  94     args_.reserve(cmdline.size());
  95     argv_.reserve(cmdline.size() + 1);
  96     argc_ = ssize(cmdline);
  97     for (const auto& arg : cmdline)
  98     {
  99         char* argCopy = strdup(arg);
 100         if (argCopy == nullptr)
 101         {
 102             throw std::bad_alloc();
 103         }
 104         args_.push_back(argCopy);
 105         argv_.push_back(argCopy);
 106     }
 107     argv_.push_back(nullptr);
 108 }
 109
 110 namespace
 111 {
 112
 113 //! Helper function so we can delegate from the std::string constructor to the const char * one.
 114 std::vector<const char*> convertFromStringArrayRef(const ArrayRef<const std::string>& cmdline)
 115 {
 116     std::vector<const char*> v(cmdline.size());
 117     std::transform(cmdline.begin(), cmdline.end(), v.begin(),
 118                    [](const std::string& s) { return s.c_str(); });
 119     return v;
 120 }
 121
 122 } // namespace
 123
 124 // This makes a new temporary vector of views of the const char * in
 125 // the view passed in. Those are then deep copied in the constructor
 126 // delegated to.
 127 CommandLine::Impl::Impl(const ArrayRef<const std::string>& cmdline) :
 128     Impl(convertFromStringArrayRef(cmdline))
 129 {
 130 }
 131
 132 CommandLine::Impl::~Impl()
 133 {
 134     for (size_t i = 0; i < args_.size(); ++i)
 135     {
 136         std::free(args_[i]);
 137     }
 138 }
 139
 140 /********************************************************************
 141  * CommandLine
 142  */
 143
 144 CommandLine::CommandLine() : impl_(new Impl(ArrayRef<const char*>{})) {}
 145
 146 CommandLine::CommandLine(const ArrayRef<const char* const>& cmdline) : impl_(new Impl(cmdline)) {}
 147
 148 CommandLine::CommandLine(const ArrayRef<const std::string>& cmdline) : impl_(new Impl(cmdline)) {}
 149
 150 CommandLine::CommandLine(const CommandLine& other) :
 151     impl_(new Impl(arrayRefFromArray(other.argv(), other.argc())))
 152 {
 153 }
 154
 155 CommandLine::~CommandLine() {}
 156
 157 void CommandLine::initFromArray(const ArrayRef<const char* const>& cmdline)
 158 {
 159     impl_.reset(new Impl(cmdline));
 160 }
 161
 162 void CommandLine::append(const char* arg)
 163 {
 164     GMX_RELEASE_ASSERT(impl_->argc_ == ssize(impl_->args_),
 165                        "Command-line has been modified externally");
 166     size_t newSize = impl_->args_.size() + 1;
 167     impl_->args_.reserve(newSize);
 168     impl_->argv_.reserve(newSize + 1);
 169     char* newArg = strdup(arg);
 170     if (newArg == nullptr)
 171     {
 172         throw std::bad_alloc();
 173     }
 174     impl_->args_.push_back(newArg);
 175     impl_->argv_.pop_back(); // Remove the trailing NULL.
 176     impl_->argv_.push_back(newArg);
 177     impl_->argv_.push_back(nullptr);
 178     impl_->argc_ = static_cast<int>(newSize);
 179 }
 180
 181 void CommandLine::addOption(const char* name)
 182 {
 183     append(name);
 184 }
 185
 186 void CommandLine::addOption(const char* name, const char* value)
 187 {
 188     append(name);
 189     append(value);
 190 }
 191
 192 void CommandLine::addOption(const char* name, const std::string& value)
 193 {
 194     addOption(name, value.c_str());
 195 }
 196
 197 void CommandLine::addOption(const char* name, int value)
 198 {
 199     append(name);
 200     append(gmx::toString(value));
 201 }
 202
 203 void CommandLine::addOption(const char* name, double value)
 204 {
 205     append(name);
 206     append(gmx::toString(value));
 207 }
 208
 209 void CommandLine::merge(const CommandLine& args)
 210 {
 211     if (args.argc() > 0)
 212     {
 213         // Skip first argument if it is the module name.
 214         const int firstArg = (args.arg(0)[0] == '-' ? 0 : 1);
 215         for (int i = firstArg; i < args.argc(); ++i)
 216         {
 217             append(args.arg(i));
 218         }
 219     }
 220 }
 221
 222 int& CommandLine::argc()
 223 {
 224     return impl_->argc_;
 225 }
 226 char** CommandLine::argv()
 227 {
 228     return &impl_->argv_[0];
 229 }
 230 int CommandLine::argc() const
 231 {
 232     return impl_->argc_;
 233 }
 234 const char* const* CommandLine::argv() const
 235 {
 236     return &impl_->argv_[0];
 237 }
 238 const char* CommandLine::arg(int i) const
 239 {
 240     return impl_->argv_[i];
 241 }
 242
 243 std::string CommandLine::toString() const
 244 {
 245     return CommandLineProgramContext(argc(), argv()).commandLine();
 246 }
 247
 248 bool CommandLine::contains(const char* name) const
 249 {
 250     for (int i = 0; i < impl_->argc_; ++i)
 251     {
 252         if (std::strcmp(arg(i), name) == 0)
 253         {
 254             return true;
 255         }
 256     }
 257     return false;
 258 }
 259
 260 /********************************************************************
 261  * CommandLineTestHelper::Impl
 262  */
 263
 264 class CommandLineTestHelper::Impl
 265 {
 266 public:
 267     struct OutputFileInfo
 268     {
 269         OutputFileInfo(const char* option, const std::string& path, FileMatcherPointer matcher) :
 270             option(option),
 271             path(path),
 272             matcher(move(matcher))
 273         {
 274         }
 275
 276         std::string        option;
 277         std::string        path;
 278         FileMatcherPointer matcher;
 279     };
 280
 281     typedef std::vector<OutputFileInfo> OutputFileList;
 282
 283     explicit Impl(TestFileManager* fileManager) : fileManager_(*fileManager) {}
 284
 285     TestFileManager& fileManager_;
 286     OutputFileList   outputFiles_;
 287 };
 288
 289 /********************************************************************
 290  * CommandLineTestHelper
 291  */
 292
 293 // static
 294 int CommandLineTestHelper::runModuleDirect(ICommandLineModule* module, CommandLine* commandLine)
 295 {
 296     CommandLineModuleSettings settings;
 297     module->init(&settings);
 298     return module->run(commandLine->argc(), commandLine->argv());
 299 }
 300
 301 // static
 302 int CommandLineTestHelper::runModuleDirect(std::unique_ptr<ICommandLineOptionsModule> module,
 303                                            CommandLine*                               commandLine)
 304 {
 305     // The name and description are not used in the tests, so they can be NULL.
 306     const std::unique_ptr<ICommandLineModule> wrapperModule(
 307             ICommandLineOptionsModule::createModule(nullptr, nullptr, std::move(module)));
 308     return runModuleDirect(wrapperModule.get(), commandLine);
 309 }
 310
 311 // static
 312 int CommandLineTestHelper::runModuleFactory(
 313         const std::function<std::unique_ptr<ICommandLineOptionsModule>()>& factory,
 314         CommandLine*                                                       commandLine)
 315 {
 316     return runModuleDirect(factory(), commandLine);
 317 }
 318
 319 CommandLineTestHelper::CommandLineTestHelper(TestFileManager* fileManager) :
 320     impl_(new Impl(fileManager))
 321 {
 322 }
 323
 324 CommandLineTestHelper::~CommandLineTestHelper() {}
 325
 326 void CommandLineTestHelper::setInputFileContents(CommandLine*       args,
 327                                                  const char*        option,
 328                                                  const char*        extension,
 329                                                  const std::string& contents)
 330 {
 331     GMX_ASSERT(extension[0] != '.', "Extension should not contain a dot");
 332     std::string fullFilename =
 333             impl_->fileManager_.getTemporaryFilePath(formatString("%d.%s", args->argc(), extension));
 334     TextWriter::writeFileFromString(fullFilename, contents);
 335     args->addOption(option, fullFilename);
 336 }
 337
 338 void CommandLineTestHelper::setInputFileContents(CommandLine*                       args,
 339                                                  const char*                        option,
 340                                                  const char*                        extension,
 341                                                  const ArrayRef<const char* const>& contents)
 342 {
 343     GMX_ASSERT(extension[0] != '.', "Extension should not contain a dot");
 344     std::string fullFilename =
 345             impl_->fileManager_.getTemporaryFilePath(formatString("%d.%s", args->argc(), extension));
 346     TextWriter                                  file(fullFilename);
 347     ArrayRef<const char* const>::const_iterator i;
 348     for (i = contents.begin(); i != contents.end(); ++i)
 349     {
 350         file.writeLine(*i);
 351     }
 352     file.close();
 353     args->addOption(option, fullFilename);
 354 }
 355
 356 void CommandLineTestHelper::setOutputFile(CommandLine*                     args,
 357                                           const char*                      option,
 358                                           const char*                      filename,
 359                                           const ITextBlockMatcherSettings& matcher)
 360 {
 361     setOutputFile(args, option, filename, TextFileMatch(matcher));
 362 }
 363
 364 void CommandLineTestHelper::setOutputFile(CommandLine*                args,
 365                                           const char*                 option,
 366                                           const char*                 filename,
 367                                           const IFileMatcherSettings& matcher)
 368 {
 369     std::string suffix(filename);
 370     if (startsWith(filename, "."))
 371     {
 372         suffix = formatString("%d.%s", args->argc(), filename);
 373     }
 374     std::string fullFilename = impl_->fileManager_.getTemporaryFilePath(suffix);
 375     args->addOption(option, fullFilename);
 376     impl_->outputFiles_.emplace_back(option, fullFilename, matcher.createFileMatcher());
 377 }
 378
 379 void CommandLineTestHelper::checkOutputFiles(TestReferenceChecker checker) const
 380 {
 381     if (!impl_->outputFiles_.empty())
 382     {
 383         TestReferenceChecker outputChecker(checker.checkCompound("OutputFiles", "Files"));
 384         for (const auto& outfile : impl_->outputFiles_)
 385         {
 386             TestReferenceChecker fileChecker(outputChecker.checkCompound("File", outfile.option.c_str()));
 387             outfile.matcher->checkFile(outfile.path, &fileChecker);
 388         }
 389     }
 390 }
 391
 392 /********************************************************************
 393  * CommandLineTestBase::Impl
 394  */
 395
 396 class CommandLineTestBase::Impl
 397 {
 398 public:
 399     Impl() : helper_(&tempFiles_) { cmdline_.append("module"); }
 400
 401     TestReferenceData     data_;
 402     TestFileManager       tempFiles_;
 403     CommandLineTestHelper helper_;
 404     CommandLine           cmdline_;
 405 };
 406
 407 /********************************************************************
 408  * CommandLineTestBase
 409  */
 410
 411 CommandLineTestBase::CommandLineTestBase() : impl_(new Impl) {}
 412
 413 CommandLineTestBase::~CommandLineTestBase() {}
 414
 415 void CommandLineTestBase::setInputFile(const char* option, const char* filename)
 416 {
 417     impl_->cmdline_.addOption(option, TestFileManager::getInputFilePath(filename));
 418 }
 419
 420 void CommandLineTestBase::setInputFile(const char* option, const std::string& filename)
 421 {
 422     setInputFile(option, filename.c_str());
 423 }
 424
 425 void CommandLineTestBase::setModifiableInputFile(const char* option, const std::string& filename)
 426 {
 427     setModifiableInputFile(option, filename.c_str());
 428 }
 429
 430 void CommandLineTestBase::setModifiableInputFile(const char* option, const char* filename)
 431 {
 432     std::string originalFileName   = gmx::test::TestFileManager::getInputFilePath(filename);
 433     std::string modifiableFileName = fileManager().getTemporaryFilePath(filename);
 434     gmx_file_copy(originalFileName.c_str(), modifiableFileName.c_str(), true);
 435     impl_->cmdline_.addOption(option, modifiableFileName);
 436 }
 437
 438 void CommandLineTestBase::setInputFileContents(const char*        option,
 439                                                const char*        extension,
 440                                                const std::string& contents)
 441 {
 442     impl_->helper_.setInputFileContents(&impl_->cmdline_, option, extension, contents);
 443 }
 444
 445 void CommandLineTestBase::setInputFileContents(const char*                        option,
 446                                                const char*                        extension,
 447                                                const ArrayRef<const char* const>& contents)
 448 {
 449     impl_->helper_.setInputFileContents(&impl_->cmdline_, option, extension, contents);
 450 }
 451
 452 void CommandLineTestBase::setOutputFile(const char*                      option,
 453                                         const char*                      filename,
 454                                         const ITextBlockMatcherSettings& matcher)
 455 {
 456     impl_->helper_.setOutputFile(&impl_->cmdline_, option, filename, matcher);
 457 }
 458
 459 void CommandLineTestBase::setOutputFile(const char*                 option,
 460                                         const char*                 filename,
 461                                         const IFileMatcherSettings& matcher)
 462 {
 463     impl_->helper_.setOutputFile(&impl_->cmdline_, option, filename, matcher);
 464 }
 465
 466 void CommandLineTestBase::setInputAndOutputFile(const char*                      option,
 467                                                 const char*                      filename,
 468                                                 const ITextBlockMatcherSettings& matcher)
 469 {
 470     std::string originalFileName   = gmx::test::TestFileManager::getInputFilePath(filename);
 471     std::string modifiableFileName = fileManager().getTemporaryFilePath(filename);
 472     gmx_file_copy(originalFileName.c_str(), modifiableFileName.c_str(), true);
 473     impl_->helper_.setOutputFile(&impl_->cmdline_, option, filename, matcher);
 474 }
 475
 476 void CommandLineTestBase::setInputAndOutputFile(const char*                 option,
 477                                                 const char*                 filename,
 478                                                 const IFileMatcherSettings& matcher)
 479 {
 480     std::string originalFileName   = gmx::test::TestFileManager::getInputFilePath(filename);
 481     std::string modifiableFileName = fileManager().getTemporaryFilePath(filename);
 482     gmx_file_copy(originalFileName.c_str(), modifiableFileName.c_str(), true);
 483     impl_->helper_.setOutputFile(&impl_->cmdline_, option, filename, matcher);
 484 }
 485
 486 CommandLine& CommandLineTestBase::commandLine()
 487 {
 488     return impl_->cmdline_;
 489 }
 490
 491 TestFileManager& CommandLineTestBase::fileManager()
 492 {
 493     return impl_->tempFiles_;
 494 }
 495
 496 TestReferenceChecker CommandLineTestBase::rootChecker()
 497 {
 498     return impl_->data_.rootChecker();
 499 }
 500
 501 void CommandLineTestBase::setDefaultTolerance(const FloatingPointTolerance& tolerance)
 502 {
 503     impl_->data_.rootChecker().setDefaultTolerance(tolerance);
 504 }
 505
 506 void CommandLineTestBase::testWriteHelp(ICommandLineModule* module)
 507 {
 508     StringOutputStream     stream;
 509     TextWriter             writer(&stream);
 510     CommandLineHelpContext context(&writer, eHelpOutputFormat_Console, nullptr, "test");
 511     context.setModuleDisplayName(formatString("%s %s", "test", module->name()));
 512     module->writeHelp(context);
 513     TestReferenceChecker checker(rootChecker());
 514     checker.checkTextBlock(stream.toString(), "HelpOutput");
 515 }
 516
 517 void CommandLineTestBase::checkOutputFiles()
 518 {
 519     impl_->helper_.checkOutputFiles(rootChecker());
 520 }
 521
 522 } // namespace test
 523 } // namespace gmx