tests/phpunit/includes/parser/NewParserTest.php

   1 <?php
   2
   3 /**
   4  * Although marked as a stub, can work independently.
   5  *
   6  * @group Database
   7  * @group Parser
   8  * @group Stub
   9  */
  10 class NewParserTest extends MediaWikiTestCase {
  11         static protected $articles = array(); // Array of test articles defined by the tests
  12         /* The data provider is run on a different instance than the test, so it must be static
  13          * When running tests from several files, all tests will see all articles.
  14          */
  15         static protected $backendToUse;
  16
  17         public $keepUploads = false;
  18         public $runDisabled = false;
  19         public $runParsoid = false;
  20         public $regex = '';
  21         public $showProgress = true;
  22         public $savedWeirdGlobals = array();
  23         public $savedGlobals = array();
  24         public $hooks = array();
  25         public $functionHooks = array();
  26
  27         //Fuzz test
  28         public $maxFuzzTestLength = 300;
  29         public $fuzzSeed = 0;
  30         public $memoryLimit = 50;
  31
  32         protected $file = false;
  33
  34         public static function setUpBeforeClass() {
  35                 // Inject ParserTest well-known interwikis
  36                 ParserTest::setupInterwikis();
  37         }
  38
  39         protected function setUp() {
  40                 global $wgNamespaceAliases;
  41                 global $wgHooks, $IP;
  42
  43                 parent::setUp();
  44
  45                 //Setup CLI arguments
  46                 if ( $this->getCliArg( 'regex=' ) ) {
  47                         $this->regex = $this->getCliArg( 'regex=' );
  48                 } else {
  49                         # Matches anything
  50                         $this->regex = '';
  51                 }
  52
  53                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  54
  55                 $tmpGlobals = array();
  56
  57                 $tmpGlobals['wgLanguageCode'] = 'en';
  58                 $tmpGlobals['wgContLang'] = Language::factory( 'en' );
  59                 $tmpGlobals['wgSitename'] = 'MediaWiki';
  60                 $tmpGlobals['wgServer'] = 'http://example.org';
  61                 $tmpGlobals['wgScript'] = '/index.php';
  62                 $tmpGlobals['wgScriptPath'] = '/';
  63                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  64                 $tmpGlobals['wgActionPaths'] = array();
  65                 $tmpGlobals['wgVariantArticlePath'] = false;
  66                 $tmpGlobals['wgExtensionAssetsPath'] = '/extensions';
  67                 $tmpGlobals['wgStylePath'] = '/skins';
  68                 $tmpGlobals['wgEnableUploads'] = true;
  69                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  70                 $tmpGlobals['wgLocalFileRepo'] = array(
  71                         'class' => 'LocalRepo',
  72                         'name' => 'local',
  73                         'url' => 'http://example.com/images',
  74                         'hashLevels' => 2,
  75                         'transformVia404' => false,
  76                         'backend' => 'local-backend'
  77                 );
  78                 $tmpGlobals['wgForeignFileRepos'] = array();
  79                 $tmpGlobals['wgDefaultExternalStore'] = array();
  80                 $tmpGlobals['wgEnableParserCache'] = false;
  81                 $tmpGlobals['wgCapitalLinks'] = true;
  82                 $tmpGlobals['wgNoFollowLinks'] = true;
  83                 $tmpGlobals['wgNoFollowDomainExceptions'] = array();
  84                 $tmpGlobals['wgExternalLinkTarget'] = false;
  85                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  86                 $tmpGlobals['wgUseImageResize'] = true;
  87                 $tmpGlobals['wgAllowExternalImages'] = true;
  88                 $tmpGlobals['wgRawHtml'] = false;
  89                 $tmpGlobals['wgUseTidy'] = false;
  90                 $tmpGlobals['wgAlwaysUseTidy'] = false;
  91                 $tmpGlobals['wgWellFormedXml'] = true;
  92                 $tmpGlobals['wgAllowMicrodataAttributes'] = true;
  93                 $tmpGlobals['wgExperimentalHtmlIds'] = false;
  94                 $tmpGlobals['wgAdaptiveMessageCache'] = true;
  95                 $tmpGlobals['wgUseDatabaseMessages'] = true;
  96                 $tmpGlobals['wgLocaltimezone'] = 'UTC';
  97                 $tmpGlobals['wgDeferredUpdateList'] = array();
  98                 $tmpGlobals['wgGroupPermissions'] = array(
  99                         '*' => array(
 100                                 'createaccount' => true,
 101                                 'read' => true,
 102                                 'edit' => true,
 103                                 'createpage' => true,
 104                                 'createtalk' => true,
 105                 ) );
 106                 $tmpGlobals['wgNamespaceProtection'] = array( NS_MEDIAWIKI => 'editinterface' );
 107
 108                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
 109
 110                 $tmpGlobals['wgFileExtensions'][] = 'svg';
 111                 $tmpGlobals['wgSVGConverter'] = 'rsvg';
 112                 $tmpGlobals['wgSVGConverters']['rsvg'] = '$path/rsvg-convert -w $width -h $height $input -o $output';
 113
 114                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
 115                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
 116                 }
 117
 118                 # Replace all media handlers with a mock. We do not need to generate
 119                 # actual thumbnails to do parser testing, we only care about receiving
 120                 # a ThumbnailImage properly initialized.
 121                 global $wgMediaHandlers;
 122                 foreach ( $wgMediaHandlers as $type => $handler ) {
 123                         $tmpGlobals['wgMediaHandlers'][$type] = 'MockBitmapHandler';
 124                 }
 125                 // Vector images have to be handled slightly differently
 126                 $tmpGlobals['wgMediaHandlers']['image/svg+xml'] = 'MockSvgHandler';
 127
 128                 $tmpHooks = $wgHooks;
 129                 $tmpHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 130                 $tmpHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 131                 $tmpGlobals['wgHooks'] = $tmpHooks;
 132
 133                 $this->setMwGlobals( $tmpGlobals );
 134
 135                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
 136                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 137
 138                 $wgNamespaceAliases['Image'] = NS_FILE;
 139                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 140         }
 141
 142         protected function tearDown() {
 143                 global $wgNamespaceAliases;
 144
 145                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 146                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 147
 148                 // Restore backends
 149                 RepoGroup::destroySingleton();
 150                 FileBackendGroup::destroySingleton();
 151
 152                 // Remove temporary pages from the link cache
 153                 LinkCache::singleton()->clear();
 154
 155                 // Restore message cache (temporary pages and $wgUseDatabaseMessages)
 156                 MessageCache::destroyInstance();
 157
 158                 parent::tearDown();
 159         }
 160
 161         function addDBData() {
 162                 $this->tablesUsed[] = 'site_stats';
 163                 # disabled for performance
 164                 #$this->tablesUsed[] = 'image';
 165
 166                 # Update certain things in site_stats
 167                 $this->db->insert( 'site_stats',
 168                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 169                         __METHOD__
 170                 );
 171
 172                 $user = User::newFromId( 0 );
 173                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 174
 175                 # Upload DB table entries for files.
 176                 # We will upload the actual files later. Note that if anything causes LocalFile::load()
 177                 # to be triggered before then, it will break via maybeUpgrade() setting the fileExists
 178                 # member to false and storing it in cache.
 179                 # note that the size/width/height/bits/etc of the file
 180                 # are actually set by inspecting the file itself; the arguments
 181                 # to recordUpload2 have no effect.  That said, we try to make things
 182                 # match up so it is less confusing to readers of the code & tests.
 183                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 184                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 185                         $image->recordUpload2(
 186                                 '', // archive name
 187                                 'Upload of some lame file',
 188                                 'Some lame file',
 189                                 array(
 190                                         'size' => 7881,
 191                                         'width' => 1941,
 192                                         'height' => 220,
 193                                         'bits' => 8,
 194                                         'media_type' => MEDIATYPE_BITMAP,
 195                                         'mime' => 'image/jpeg',
 196                                         'metadata' => serialize( array() ),
 197                                         'sha1' => wfBaseConvert( '1', 16, 36, 31 ),
 198                                         'fileExists' => true ),
 199                                 $this->db->timestamp( '20010115123500' ), $user
 200                         );
 201                 }
 202
 203                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
 204                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 205                         $image->recordUpload2(
 206                                 '', // archive name
 207                                 'Upload of some lame thumbnail',
 208                                 'Some lame thumbnail',
 209                                 array(
 210                                         'size' => 22589,
 211                                         'width' => 135,
 212                                         'height' => 135,
 213                                         'bits' => 8,
 214                                         'media_type' => MEDIATYPE_BITMAP,
 215                                         'mime' => 'image/png',
 216                                         'metadata' => serialize( array() ),
 217                                         'sha1' => wfBaseConvert( '2', 16, 36, 31 ),
 218                                         'fileExists' => true ),
 219                                 $this->db->timestamp( '20130225203040' ), $user
 220                         );
 221                 }
 222
 223                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 224                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 225                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 226                         $image->recordUpload2(
 227                                 '', // archive name
 228                                 'zomgnotcensored',
 229                                 'Borderline image',
 230                                 array(
 231                                         'size' => 12345,
 232                                         'width' => 320,
 233                                         'height' => 240,
 234                                         'bits' => 24,
 235                                         'media_type' => MEDIATYPE_BITMAP,
 236                                         'mime' => 'image/jpeg',
 237                                         'metadata' => serialize( array() ),
 238                                         'sha1' => wfBaseConvert( '3', 16, 36, 31 ),
 239                                         'fileExists' => true ),
 240                                 $this->db->timestamp( '20010115123500' ), $user
 241                         );
 242                 }
 243                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
 244                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 245                         $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', array(
 246                                         'size'        => 12345,
 247                                         'width'       => 200,
 248                                         'height'      => 200,
 249                                         'bits'        => 24,
 250                                         'media_type'  => MEDIATYPE_DRAWING,
 251                                         'mime'        => 'image/svg+xml',
 252                                         'metadata'    => serialize( array() ),
 253                                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 254                                         'fileExists'  => true
 255                         ), $this->db->timestamp( '20010115123500' ), $user );
 256                 }
 257         }
 258
 259         //ParserTest setup/teardown functions
 260
 261         /**
 262          * Set up the global variables for a consistent environment for each test.
 263          * Ideally this should replace the global configuration entirely.
 264          */
 265         protected function setupGlobals( $opts = array(), $config = '' ) {
 266                 global $wgFileBackends;
 267                 # Find out values for some special options.
 268                 $lang =
 269                         self::getOptionValue( 'language', $opts, 'en' );
 270                 $variant =
 271                         self::getOptionValue( 'variant', $opts, false );
 272                 $maxtoclevel =
 273                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 274                 $linkHolderBatchSize =
 275                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 276
 277                 $uploadDir = $this->getUploadDir();
 278                 if ( $this->getCliArg( 'use-filebackend=' ) ) {
 279                         if ( self::$backendToUse ) {
 280                                 $backend = self::$backendToUse;
 281                         } else {
 282                                 $name = $this->getCliArg( 'use-filebackend=' );
 283                                 $useConfig = array();
 284                                 foreach ( $wgFileBackends as $conf ) {
 285                                         if ( $conf['name'] == $name ) {
 286                                                 $useConfig = $conf;
 287                                         }
 288                                 }
 289                                 $useConfig['name'] = 'local-backend'; // swap name
 290                                 $class = $conf['class'];
 291                                 self::$backendToUse = new $class( $useConfig );
 292                                 $backend = self::$backendToUse;
 293                         }
 294                 } else {
 295                         # Replace with a mock. We do not care about generating real
 296                         # files on the filesystem, just need to expose the file
 297                         # informations.
 298                         $backend = new MockFileBackend( array(
 299                                 'name' => 'local-backend',
 300                                 'lockManager' => 'nullLockManager',
 301                                 'containerPaths' => array(
 302                                         'local-public' => "$uploadDir",
 303                                         'local-thumb' => "$uploadDir/thumb",
 304                                 )
 305                         ) );
 306                 }
 307
 308                 $settings = array(
 309                         'wgLocalFileRepo' => array(
 310                                 'class' => 'LocalRepo',
 311                                 'name' => 'local',
 312                                 'url' => 'http://example.com/images',
 313                                 'hashLevels' => 2,
 314                                 'transformVia404' => false,
 315                                 'backend' => $backend
 316                         ),
 317                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 318                         'wgLanguageCode' => $lang,
 319                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 320                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 321                         'wgNamespacesWithSubpages' => array( NS_MAIN => isset( $opts['subpage'] ) ),
 322                         'wgMaxTocLevel' => $maxtoclevel,
 323                         'wgUseTeX' => isset( $opts['math'] ) || isset( $opts['texvc'] ),
 324                         'wgMathDirectory' => $uploadDir . '/math',
 325                         'wgDefaultLanguageVariant' => $variant,
 326                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 327                 );
 328
 329                 if ( $config ) {
 330                         $configLines = explode( "\n", $config );
 331
 332                         foreach ( $configLines as $line ) {
 333                                 list( $var, $value ) = explode( '=', $line, 2 );
 334
 335                                 $settings[$var] = eval( "return $value;" ); //???
 336                         }
 337                 }
 338
 339                 $this->savedGlobals = array();
 340
 341                 /** @since 1.20 */
 342                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 343
 344                 $langObj = Language::factory( $lang );
 345                 $settings['wgContLang'] = $langObj;
 346                 $settings['wgLang'] = $langObj;
 347
 348                 $context = new RequestContext();
 349                 $settings['wgOut'] = $context->getOutput();
 350                 $settings['wgUser'] = $context->getUser();
 351                 $settings['wgRequest'] = $context->getRequest();
 352
 353                 foreach ( $settings as $var => $val ) {
 354                         if ( array_key_exists( $var, $GLOBALS ) ) {
 355                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 356                         }
 357
 358                         $GLOBALS[$var] = $val;
 359                 }
 360
 361                 MagicWord::clearCache();
 362
 363                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 364                 RepoGroup::destroySingleton();
 365                 FileBackendGroup::destroySingleton();
 366
 367                 # Create dummy files in storage
 368                 $this->setupUploads();
 369
 370                 # Publish the articles after we have the final language set
 371                 $this->publishTestArticles();
 372
 373                 MessageCache::destroyInstance();
 374
 375                 return $context;
 376         }
 377
 378         /**
 379          * Get an FS upload directory (only applies to FSFileBackend)
 380          *
 381          * @return String: the directory
 382          */
 383         protected function getUploadDir() {
 384                 if ( $this->keepUploads ) {
 385                         $dir = wfTempDir() . '/mwParser-images';
 386
 387                         if ( is_dir( $dir ) ) {
 388                                 return $dir;
 389                         }
 390                 } else {
 391                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 392                 }
 393
 394                 // wfDebug( "Creating upload directory $dir\n" );
 395                 if ( file_exists( $dir ) ) {
 396                         wfDebug( "Already exists!\n" );
 397
 398                         return $dir;
 399                 }
 400
 401                 return $dir;
 402         }
 403
 404         /**
 405          * Create a dummy uploads directory which will contain a couple
 406          * of files in order to pass existence tests.
 407          *
 408          * @return String: the directory
 409          */
 410         protected function setupUploads() {
 411                 global $IP;
 412
 413                 $base = $this->getBaseDir();
 414                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 415                 $backend->prepare( array( 'dir' => "$base/local-public/3/3a" ) );
 416                 $backend->store( array(
 417                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/3/3a/Foobar.jpg"
 418                 ) );
 419                 $backend->prepare( array( 'dir' => "$base/local-public/e/ea" ) );
 420                 $backend->store( array(
 421                         'src' => "$IP/skins/monobook/wiki.png", 'dst' => "$base/local-public/e/ea/Thumb.png"
 422                 ) );
 423                 $backend->prepare( array( 'dir' => "$base/local-public/0/09" ) );
 424                 $backend->store( array(
 425                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/0/09/Bad.jpg"
 426                 ) );
 427
 428                 // No helpful SVG file to copy, so make one ourselves
 429                 $tmpDir = wfTempDir();
 430                 $tempFsFile = new TempFSFile( "$tmpDir/Foobar.svg" );
 431                 $tempFsFile->autocollect(); // destroy file when $tempFsFile leaves scope
 432                 file_put_contents( "$tmpDir/Foobar.svg",
 433                         '<?xml version="1.0" encoding="utf-8"?>' .
 434                         '<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200"><text>Foo</text></svg>' );
 435
 436                 $backend->prepare( array( 'dir' => "$base/local-public/f/ff" ) );
 437                 $backend->quickStore( array(
 438                         'src' => "$tmpDir/Foobar.svg", 'dst' => "$base/local-public/f/ff/Foobar.svg"
 439                 ) );
 440         }
 441
 442         /**
 443          * Restore default values and perform any necessary clean-up
 444          * after each test runs.
 445          */
 446         protected function teardownGlobals() {
 447                 $this->teardownUploads();
 448
 449                 foreach ( $this->savedGlobals as $var => $val ) {
 450                         $GLOBALS[$var] = $val;
 451                 }
 452         }
 453
 454         /**
 455          * Remove the dummy uploads directory
 456          */
 457         private function teardownUploads() {
 458                 if ( $this->keepUploads ) {
 459                         return;
 460                 }
 461
 462                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 463                 if ( $backend instanceof MockFileBackend ) {
 464                         # In memory backend, so dont bother cleaning them up.
 465                         return;
 466                 }
 467
 468                 $base = $this->getBaseDir();
 469                 // delete the files first, then the dirs.
 470                 self::deleteFiles(
 471                         array(
 472                                 "$base/local-public/3/3a/Foobar.jpg",
 473                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 474                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 475                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 476                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 477                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 478                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 479                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 480                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 481                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 482                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 483                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 484                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 485                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 486                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 487
 488                                 "$base/local-public/e/ea/Thumb.png",
 489
 490                                 "$base/local-public/0/09/Bad.jpg",
 491
 492                                 "$base/local-public/f/ff/Foobar.svg",
 493                                 "$base/local-thumb/f/ff/Foobar.svg/180px-Foobar.svg.jpg",
 494                                 "$base/local-thumb/f/ff/Foobar.svg/270px-Foobar.svg.jpg",
 495                                 "$base/local-thumb/f/ff/Foobar.svg/360px-Foobar.svg.jpg",
 496                                 "$base/local-thumb/f/ff/Foobar.svg/langde-180px-Foobar.svg.jpg",
 497                                 "$base/local-thumb/f/ff/Foobar.svg/langde-270px-Foobar.svg.jpg",
 498                                 "$base/local-thumb/f/ff/Foobar.svg/langde-360px-Foobar.svg.jpg",
 499
 500                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 501                         )
 502                 );
 503         }
 504
 505         /**
 506          * Delete the specified files, if they exist.
 507          * @param $files Array: full paths to files to delete.
 508          */
 509         private static function deleteFiles( $files ) {
 510                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 511                 foreach ( $files as $file ) {
 512                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 513                 }
 514                 foreach ( $files as $file ) {
 515                         $tmp = $file;
 516                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 517                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 518                                         break;
 519                                 }
 520                         }
 521                 }
 522         }
 523
 524         protected function getBaseDir() {
 525                 return 'mwstore://local-backend';
 526         }
 527
 528         public function parserTestProvider() {
 529                 if ( $this->file === false ) {
 530                         global $wgParserTestFiles;
 531                         $this->file = $wgParserTestFiles[0];
 532                 }
 533
 534                 return new TestFileIterator( $this->file, $this );
 535         }
 536
 537         /**
 538          * Set the file from whose tests will be run by this instance
 539          */
 540         public function setParserTestFile( $filename ) {
 541                 $this->file = $filename;
 542         }
 543
 544         /**
 545          * @group medium
 546          * @dataProvider parserTestProvider
 547          */
 548         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 549                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 550                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 551                         //$this->markTestSkipped( 'Filtered out by the user' );
 552                         return;
 553                 }
 554
 555                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 556                         // parser tests frequently assume that the main namespace contains wikitext.
 557                         // @todo When setting up pages, force the content model. Only skip if
 558                         //        $wgtContentModelUseDB is false.
 559                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 560                                 . "skipping parser test: $desc" );
 561                 }
 562
 563                 wfDebug( "Running parser test: $desc\n" );
 564
 565                 $opts = $this->parseOptions( $opts );
 566                 $context = $this->setupGlobals( $opts, $config );
 567
 568                 $user = $context->getUser();
 569                 $options = ParserOptions::newFromContext( $context );
 570
 571                 if ( isset( $opts['title'] ) ) {
 572                         $titleText = $opts['title'];
 573                 } else {
 574                         $titleText = 'Parser test';
 575                 }
 576
 577                 $local = isset( $opts['local'] );
 578                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 579                 $parser = $this->getParser( $preprocessor );
 580
 581                 $title = Title::newFromText( $titleText );
 582
 583                 # Parser test requiring math. Make sure texvc is executable
 584                 # or just skip such tests.
 585                 if ( isset( $opts['math'] ) || isset( $opts['texvc'] ) ) {
 586                         global $wgTexvc;
 587
 588                         if ( !isset( $wgTexvc ) ) {
 589                                 $this->markTestSkipped( "SKIPPED: \$wgTexvc is not set" );
 590                         } elseif ( !is_executable( $wgTexvc ) ) {
 591                                 $this->markTestSkipped( "SKIPPED: texvc binary does not exist"
 592                                         . " or is not executable.\n"
 593                                         . "Current configuration is:\n\$wgTexvc = '$wgTexvc'" );
 594                         }
 595                 }
 596
 597                 if ( isset( $opts['pst'] ) ) {
 598                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 599                 } elseif ( isset( $opts['msg'] ) ) {
 600                         $out = $parser->transformMsg( $input, $options, $title );
 601                 } elseif ( isset( $opts['section'] ) ) {
 602                         $section = $opts['section'];
 603                         $out = $parser->getSection( $input, $section );
 604                 } elseif ( isset( $opts['replace'] ) ) {
 605                         $section = $opts['replace'][0];
 606                         $replace = $opts['replace'][1];
 607                         $out = $parser->replaceSection( $input, $section, $replace );
 608                 } elseif ( isset( $opts['comment'] ) ) {
 609                         $out = Linker::formatComment( $input, $title, $local );
 610                 } elseif ( isset( $opts['preload'] ) ) {
 611                         $out = $parser->getPreloadText( $input, $title, $options );
 612                 } else {
 613                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 614                         $out = $output->getText();
 615
 616                         if ( isset( $opts['showtitle'] ) ) {
 617                                 if ( $output->getTitleText() ) {
 618                                         $title = $output->getTitleText();
 619                                 }
 620
 621                                 $out = "$title\n$out";
 622                         }
 623
 624                         if ( isset( $opts['ill'] ) ) {
 625                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 626                         } elseif ( isset( $opts['cat'] ) ) {
 627                                 $outputPage = $context->getOutput();
 628                                 $outputPage->addCategoryLinks( $output->getCategories() );
 629                                 $cats = $outputPage->getCategoryLinks();
 630
 631                                 if ( isset( $cats['normal'] ) ) {
 632                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 633                                 } else {
 634                                         $out = '';
 635                                 }
 636                         }
 637                         $parser->mPreprocessor = null;
 638
 639                         $result = $this->tidy( $result );
 640                 }
 641
 642                 $this->teardownGlobals();
 643
 644                 $this->assertEquals( $result, $out, $desc );
 645         }
 646
 647         /**
 648          * Run a fuzz test series
 649          * Draw input from a set of test files
 650          *
 651          * @todo fixme Needs some work to not eat memory until the world explodes
 652          *
 653          * @group ParserFuzz
 654          */
 655         function testFuzzTests() {
 656                 global $wgParserTestFiles;
 657
 658                 $files = $wgParserTestFiles;
 659
 660                 if ( $this->getCliArg( 'file=' ) ) {
 661                         $files = array( $this->getCliArg( 'file=' ) );
 662                 }
 663
 664                 $dict = $this->getFuzzInput( $files );
 665                 $dictSize = strlen( $dict );
 666                 $logMaxLength = log( $this->maxFuzzTestLength );
 667
 668                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 669
 670                 $user = new User;
 671                 $opts = ParserOptions::newFromUser( $user );
 672                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 673
 674                 $id = 1;
 675
 676                 while ( true ) {
 677
 678                         // Generate test input
 679                         mt_srand( ++$this->fuzzSeed );
 680                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 681                         $input = '';
 682
 683                         while ( strlen( $input ) < $totalLength ) {
 684                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 685                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 686                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 687                                 $input .= substr( $dict, $offset, $hairLength );
 688                         }
 689
 690                         $this->setupGlobals();
 691                         $parser = $this->getParser();
 692
 693                         // Run the test
 694                         try {
 695                                 $parser->parse( $input, $title, $opts );
 696                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 697                         } catch ( Exception $exception ) {
 698                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 699
 700                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 701                         }
 702
 703                         $this->teardownGlobals();
 704                         $parser->__destruct();
 705
 706                         if ( $id % 100 == 0 ) {
 707                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 708                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 709                                 if ( $usage > 90 ) {
 710                                         $ret = "Out of memory:\n";
 711                                         $memStats = $this->getMemoryBreakdown();
 712
 713                                         foreach ( $memStats as $name => $usage ) {
 714                                                 $ret .= "$name: $usage\n";
 715                                         }
 716
 717                                         throw new MWException( $ret );
 718                                 }
 719                         }
 720
 721                         $id++;
 722                 }
 723         }
 724
 725         //Various getter functions
 726
 727         /**
 728          * Get an input dictionary from a set of parser test files
 729          */
 730         function getFuzzInput( $filenames ) {
 731                 $dict = '';
 732
 733                 foreach ( $filenames as $filename ) {
 734                         $contents = file_get_contents( $filename );
 735                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 736
 737                         foreach ( $matches[1] as $match ) {
 738                                 $dict .= $match . "\n";
 739                         }
 740                 }
 741
 742                 return $dict;
 743         }
 744
 745         /**
 746          * Get a memory usage breakdown
 747          */
 748         function getMemoryBreakdown() {
 749                 $memStats = array();
 750
 751                 foreach ( $GLOBALS as $name => $value ) {
 752                         $memStats['$' . $name] = strlen( serialize( $value ) );
 753                 }
 754
 755                 $classes = get_declared_classes();
 756
 757                 foreach ( $classes as $class ) {
 758                         $rc = new ReflectionClass( $class );
 759                         $props = $rc->getStaticProperties();
 760                         $memStats[$class] = strlen( serialize( $props ) );
 761                         $methods = $rc->getMethods();
 762
 763                         foreach ( $methods as $method ) {
 764                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 765                         }
 766                 }
 767
 768                 $functions = get_defined_functions();
 769
 770                 foreach ( $functions['user'] as $function ) {
 771                         $rf = new ReflectionFunction( $function );
 772                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 773                 }
 774
 775                 asort( $memStats );
 776
 777                 return $memStats;
 778         }
 779
 780         /**
 781          * Get a Parser object
 782          */
 783         function getParser( $preprocessor = null ) {
 784                 global $wgParserConf;
 785
 786                 $class = $wgParserConf['class'];
 787                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 788
 789                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 790
 791                 return $parser;
 792         }
 793
 794         //Various action functions
 795
 796         public function addArticle( $name, $text, $line ) {
 797                 self::$articles[$name] = array( $text, $line );
 798         }
 799
 800         public function publishTestArticles() {
 801                 if ( empty( self::$articles ) ) {
 802                         return;
 803                 }
 804
 805                 foreach ( self::$articles as $name => $info ) {
 806                         list( $text, $line ) = $info;
 807                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 808                 }
 809         }
 810
 811         /**
 812          * Steal a callback function from the primary parser, save it for
 813          * application to our scary parser. If the hook is not installed,
 814          * abort processing of this file.
 815          *
 816          * @param $name String
 817          * @return Bool true if tag hook is present
 818          */
 819         public function requireHook( $name ) {
 820                 global $wgParser;
 821                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 822                 return isset( $wgParser->mTagHooks[$name] );
 823         }
 824
 825         public function requireFunctionHook( $name ) {
 826                 global $wgParser;
 827                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 828                 return isset( $wgParser->mFunctionHooks[$name] );
 829         }
 830
 831         //Various "cleanup" functions
 832
 833         /**
 834          * Run the "tidy" command on text if the $wgUseTidy
 835          * global is true
 836          *
 837          * @param $text String: the text to tidy
 838          * @return String
 839          */
 840         protected function tidy( $text ) {
 841                 global $wgUseTidy;
 842
 843                 if ( $wgUseTidy ) {
 844                         $text = MWTidy::tidy( $text );
 845                 }
 846
 847                 return $text;
 848         }
 849
 850         /**
 851          * Remove last character if it is a newline
 852          */
 853         public function removeEndingNewline( $s ) {
 854                 if ( substr( $s, -1 ) === "\n" ) {
 855                         return substr( $s, 0, -1 );
 856                 } else {
 857                         return $s;
 858                 }
 859         }
 860
 861         //Test options parser functions
 862
 863         protected function parseOptions( $instring ) {
 864                 $opts = array();
 865                 // foo
 866                 // foo=bar
 867                 // foo="bar baz"
 868                 // foo=[[bar baz]]
 869                 // foo=bar,"baz quux"
 870                 $regex = '/\b
 871                         ([\w-]+)                                                # Key
 872                         \b
 873                         (?:\s*
 874                                 =                                               # First sub-value
 875                                 \s*
 876                                 (
 877                                         "
 878                                                 [^"]*                   # Quoted val
 879                                         "
 880                                 |
 881                                         \[\[
 882                                                 [^]]*                   # Link target
 883                                         \]\]
 884                                 |
 885                                         [\w-]+                          # Plain word
 886                                 )
 887                                 (?:\s*
 888                                         ,                                       # Sub-vals 1..N
 889                                         \s*
 890                                         (
 891                                                 "[^"]*"                 # Quoted val
 892                                         |
 893                                                 \[\[[^]]*\]\]   # Link target
 894                                         |
 895                                                 [\w-]+                  # Plain word
 896                                         )
 897                                 )*
 898                         )?
 899                         /x';
 900
 901                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 902                         foreach ( $matches as $bits ) {
 903                                 array_shift( $bits );
 904                                 $key = strtolower( array_shift( $bits ) );
 905                                 if ( count( $bits ) == 0 ) {
 906                                         $opts[$key] = true;
 907                                 } elseif ( count( $bits ) == 1 ) {
 908                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 909                                 } else {
 910                                         // Array!
 911                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 912                                 }
 913                         }
 914                 }
 915
 916                 return $opts;
 917         }
 918
 919         protected function cleanupOption( $opt ) {
 920                 if ( substr( $opt, 0, 1 ) == '"' ) {
 921                         return substr( $opt, 1, -1 );
 922                 }
 923
 924                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 925                         return substr( $opt, 2, -2 );
 926                 }
 927
 928                 return $opt;
 929         }
 930
 931         /**
 932          * Use a regex to find out the value of an option
 933          * @param $key String: name of option val to retrieve
 934          * @param $opts Options array to look in
 935          * @param $default Mixed: default value returned if not found
 936          */
 937         protected static function getOptionValue( $key, $opts, $default ) {
 938                 $key = strtolower( $key );
 939
 940                 if ( isset( $opts[$key] ) ) {
 941                         return $opts[$key];
 942                 } else {
 943                         return $default;
 944                 }
 945         }
 946 }