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 $savedInitialGlobals = array();
  23         public $savedWeirdGlobals = array();
  24         public $savedGlobals = array();
  25         public $hooks = array();
  26         public $functionHooks = array();
  27
  28         //Fuzz test
  29         public $maxFuzzTestLength = 300;
  30         public $fuzzSeed = 0;
  31         public $memoryLimit = 50;
  32
  33         protected $file = false;
  34
  35         protected function setUp() {
  36                 global $wgNamespaceProtection, $wgNamespaceAliases;
  37                 global $wgHooks, $IP;
  38
  39                 parent::setUp();
  40
  41                 //Setup CLI arguments
  42                 if ( $this->getCliArg( 'regex=' ) ) {
  43                         $this->regex = $this->getCliArg( 'regex=' );
  44                 } else {
  45                         # Matches anything
  46                         $this->regex = '';
  47                 }
  48
  49                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  50
  51                 $tmpGlobals = array();
  52
  53                 $tmpGlobals['wgLanguageCode'] = 'en';
  54                 $tmpGlobals['wgContLang'] = Language::factory( 'en' );
  55                 $tmpGlobals['wgScript'] = '/index.php';
  56                 $tmpGlobals['wgScriptPath'] = '/';
  57                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  58                 $tmpGlobals['wgStyleSheetPath'] = '/skins';
  59                 $tmpGlobals['wgStylePath'] = '/skins';
  60                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  61                 $tmpGlobals['wgLocalFileRepo'] = array(
  62                         'class' => 'LocalRepo',
  63                         'name' => 'local',
  64                         'url' => 'http://example.com/images',
  65                         'hashLevels' => 2,
  66                         'transformVia404' => false,
  67                         'backend' => 'local-backend'
  68                 );
  69                 $tmpGlobals['wgForeignFileRepos'] = array();
  70                 $tmpGlobals['wgEnableParserCache'] = false;
  71                 $tmpGlobals['wgHooks'] = $wgHooks;
  72                 $tmpGlobals['wgDeferredUpdateList'] = array();
  73                 $tmpGlobals['wgMemc'] = wfGetMainCache();
  74                 $tmpGlobals['messageMemc'] = wfGetMessageCacheStorage();
  75                 $tmpGlobals['parserMemc'] = wfGetParserCacheStorage();
  76
  77                 // $tmpGlobals['wgContLang'] = new StubContLang;
  78                 $tmpGlobals['wgUser'] = new User;
  79                 $context = new RequestContext();
  80                 $tmpGlobals['wgLang'] = $context->getLanguage();
  81                 $tmpGlobals['wgOut'] = $context->getOutput();
  82                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
  83                 $tmpGlobals['wgRequest'] = $context->getRequest();
  84
  85                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
  86                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
  87                 }
  88
  89
  90                 foreach ( $tmpGlobals as $var => $val ) {
  91                         if ( array_key_exists( $var, $GLOBALS ) ) {
  92                                 $this->savedInitialGlobals[$var] = $GLOBALS[$var];
  93                         }
  94
  95                         $GLOBALS[$var] = $val;
  96                 }
  97
  98                 $this->savedWeirdGlobals['mw_namespace_protection'] = $wgNamespaceProtection[NS_MEDIAWIKI];
  99                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
 100                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 101
 102                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 103                 $wgNamespaceAliases['Image'] = NS_FILE;
 104                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 105         }
 106
 107         protected function tearDown() {
 108                 foreach ( $this->savedInitialGlobals as $var => $val ) {
 109                         $GLOBALS[$var] = $val;
 110                 }
 111
 112                 global $wgNamespaceProtection, $wgNamespaceAliases;
 113
 114                 $wgNamespaceProtection[NS_MEDIAWIKI] = $this->savedWeirdGlobals['mw_namespace_protection'];
 115                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 116                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 117
 118                 // Restore backends
 119                 RepoGroup::destroySingleton();
 120                 FileBackendGroup::destroySingleton();
 121
 122                 parent::tearDown();
 123         }
 124
 125         function addDBData() {
 126                 $this->tablesUsed[] = 'site_stats';
 127                 $this->tablesUsed[] = 'interwiki';
 128                 # disabled for performance
 129                 #$this->tablesUsed[] = 'image';
 130
 131                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 132                 # for testing inter-language links
 133                 $this->db->insert( 'interwiki', array(
 134                                 array( 'iw_prefix' => 'wikipedia',
 135                                         'iw_url' => 'http://en.wikipedia.org/wiki/$1',
 136                                         'iw_api' => '',
 137                                         'iw_wikiid' => '',
 138                                         'iw_local' => 0 ),
 139                                 array( 'iw_prefix' => 'meatball',
 140                                         'iw_url' => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 141                                         'iw_api' => '',
 142                                         'iw_wikiid' => '',
 143                                         'iw_local' => 0 ),
 144                                 array( 'iw_prefix' => 'zh',
 145                                         'iw_url' => 'http://zh.wikipedia.org/wiki/$1',
 146                                         'iw_api' => '',
 147                                         'iw_wikiid' => '',
 148                                         'iw_local' => 1 ),
 149                                 array( 'iw_prefix' => 'es',
 150                                         'iw_url' => 'http://es.wikipedia.org/wiki/$1',
 151                                         'iw_api' => '',
 152                                         'iw_wikiid' => '',
 153                                         'iw_local' => 1 ),
 154                                 array( 'iw_prefix' => 'fr',
 155                                         'iw_url' => 'http://fr.wikipedia.org/wiki/$1',
 156                                         'iw_api' => '',
 157                                         'iw_wikiid' => '',
 158                                         'iw_local' => 1 ),
 159                                 array( 'iw_prefix' => 'ru',
 160                                         'iw_url' => 'http://ru.wikipedia.org/wiki/$1',
 161                                         'iw_api' => '',
 162                                         'iw_wikiid' => '',
 163                                         'iw_local' => 1 ),
 164                                 /**
 165                                  * @todo Fixme! Why are we inserting duplicate data here? Shouldn't
 166                                  * need this IGNORE or shouldn't need the insert at all.
 167                                  */
 168                         ), __METHOD__, array( 'IGNORE' )
 169                 );
 170
 171                 # Update certain things in site_stats
 172                 $this->db->insert( 'site_stats',
 173                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 174                         __METHOD__
 175                 );
 176
 177                 # Reinitialise the LocalisationCache to match the database state
 178                 Language::getLocalisationCache()->unloadAll();
 179
 180                 # Clear the message cache
 181                 MessageCache::singleton()->clear();
 182
 183                 $user = User::newFromId( 0 );
 184                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 185
 186                 # Upload DB table entries for files.
 187                 # We will upload the actual files later. Note that if anything causes LocalFile::load()
 188                 # to be triggered before then, it will break via maybeUpgrade() setting the fileExists
 189                 # member to false and storing it in cache.
 190                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 191                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 192                         $image->recordUpload2(
 193                                 '', // archive name
 194                                 'Upload of some lame file',
 195                                 'Some lame file',
 196                                 array(
 197                                         'size' => 12345,
 198                                         'width' => 1941,
 199                                         'height' => 220,
 200                                         'bits' => 24,
 201                                         'media_type' => MEDIATYPE_BITMAP,
 202                                         'mime' => 'image/jpeg',
 203                                         'metadata' => serialize( array() ),
 204                                         'sha1' => wfBaseConvert( '', 16, 36, 31 ),
 205                                         'fileExists' => true ),
 206                                 $this->db->timestamp( '20010115123500' ), $user
 207                         );
 208                 }
 209
 210                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 211                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 212                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 213                         $image->recordUpload2(
 214                                 '', // archive name
 215                                 'zomgnotcensored',
 216                                 'Borderline image',
 217                                 array(
 218                                         'size' => 12345,
 219                                         'width' => 320,
 220                                         'height' => 240,
 221                                         'bits' => 24,
 222                                         'media_type' => MEDIATYPE_BITMAP,
 223                                         'mime' => 'image/jpeg',
 224                                         'metadata' => serialize( array() ),
 225                                         'sha1' => wfBaseConvert( '', 16, 36, 31 ),
 226                                         'fileExists' => true ),
 227                                 $this->db->timestamp( '20010115123500' ), $user
 228                         );
 229                 }
 230         }
 231
 232         //ParserTest setup/teardown functions
 233
 234         /**
 235          * Set up the global variables for a consistent environment for each test.
 236          * Ideally this should replace the global configuration entirely.
 237          */
 238         protected function setupGlobals( $opts = array(), $config = '' ) {
 239                 global $wgFileBackends;
 240                 # Find out values for some special options.
 241                 $lang =
 242                         self::getOptionValue( 'language', $opts, 'en' );
 243                 $variant =
 244                         self::getOptionValue( 'variant', $opts, false );
 245                 $maxtoclevel =
 246                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 247                 $linkHolderBatchSize =
 248                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 249
 250                 $uploadDir = $this->getUploadDir();
 251                 if ( $this->getCliArg( 'use-filebackend=' ) ) {
 252                         if ( self::$backendToUse ) {
 253                                 $backend = self::$backendToUse;
 254                         } else {
 255                                 $name = $this->getCliArg( 'use-filebackend=' );
 256                                 $useConfig = array();
 257                                 foreach ( $wgFileBackends as $conf ) {
 258                                         if ( $conf['name'] == $name ) {
 259                                                 $useConfig = $conf;
 260                                         }
 261                                 }
 262                                 $useConfig['name'] = 'local-backend'; // swap name
 263                                 $class = $conf['class'];
 264                                 self::$backendToUse = new $class( $useConfig );
 265                                 $backend = self::$backendToUse;
 266                         }
 267                 } else {
 268                         $backend = new FSFileBackend( array(
 269                                 'name' => 'local-backend',
 270                                 'lockManager' => 'nullLockManager',
 271                                 'containerPaths' => array(
 272                                         'local-public' => "$uploadDir",
 273                                         'local-thumb' => "$uploadDir/thumb",
 274                                 )
 275                         ) );
 276                 }
 277
 278                 $settings = array(
 279                         'wgServer' => 'http://example.org',
 280                         'wgScript' => '/index.php',
 281                         'wgScriptPath' => '/',
 282                         'wgArticlePath' => '/wiki/$1',
 283                         'wgExtensionAssetsPath' => '/extensions',
 284                         'wgActionPaths' => array(),
 285                         'wgLocalFileRepo' => array(
 286                                 'class' => 'LocalRepo',
 287                                 'name' => 'local',
 288                                 'url' => 'http://example.com/images',
 289                                 'hashLevels' => 2,
 290                                 'transformVia404' => false,
 291                                 'backend' => $backend
 292                         ),
 293                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 294                         'wgStylePath' => '/skins',
 295                         'wgStyleSheetPath' => '/skins',
 296                         'wgSitename' => 'MediaWiki',
 297                         'wgLanguageCode' => $lang,
 298                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 299                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 300                         'wgLang' => null,
 301                         'wgContLang' => null,
 302                         'wgNamespacesWithSubpages' => array( NS_MAIN => isset( $opts['subpage'] ) ),
 303                         'wgMaxTocLevel' => $maxtoclevel,
 304                         'wgCapitalLinks' => true,
 305                         'wgNoFollowLinks' => true,
 306                         'wgNoFollowDomainExceptions' => array(),
 307                         'wgThumbnailScriptPath' => false,
 308                         'wgUseImageResize' => true,
 309                         'wgUseTeX' => isset( $opts['math'] ),
 310                         'wgMathDirectory' => $uploadDir . '/math',
 311                         'wgLocaltimezone' => 'UTC',
 312                         'wgAllowExternalImages' => true,
 313                         'wgUseTidy' => false,
 314                         'wgDefaultLanguageVariant' => $variant,
 315                         'wgVariantArticlePath' => false,
 316                         'wgGroupPermissions' => array( '*' => array(
 317                                 'createaccount' => true,
 318                                 'read' => true,
 319                                 'edit' => true,
 320                                 'createpage' => true,
 321                                 'createtalk' => true,
 322                         ) ),
 323                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 324                         'wgDefaultExternalStore' => array(),
 325                         'wgForeignFileRepos' => array(),
 326                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 327                         'wgExperimentalHtmlIds' => false,
 328                         'wgExternalLinkTarget' => false,
 329                         'wgAlwaysUseTidy' => false,
 330                         'wgHtml5' => true,
 331                         'wgWellFormedXml' => true,
 332                         'wgAllowMicrodataAttributes' => true,
 333                         'wgAdaptiveMessageCache' => true,
 334                         'wgUseDatabaseMessages' => true,
 335                 );
 336
 337                 if ( $config ) {
 338                         $configLines = explode( "\n", $config );
 339
 340                         foreach ( $configLines as $line ) {
 341                                 list( $var, $value ) = explode( '=', $line, 2 );
 342
 343                                 $settings[$var] = eval( "return $value;" ); //???
 344                         }
 345                 }
 346
 347                 $this->savedGlobals = array();
 348
 349                 /** @since 1.20 */
 350                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 351
 352                 foreach ( $settings as $var => $val ) {
 353                         if ( array_key_exists( $var, $GLOBALS ) ) {
 354                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 355                         }
 356
 357                         $GLOBALS[$var] = $val;
 358                 }
 359
 360                 $langObj = Language::factory( $lang );
 361                 $GLOBALS['wgContLang'] = $langObj;
 362                 $context = new RequestContext();
 363                 $GLOBALS['wgLang'] = $context->getLanguage();
 364
 365                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 366                 $GLOBALS['wgOut'] = $context->getOutput();
 367                 $GLOBALS['wgUser'] = $context->getUser();
 368
 369                 global $wgHooks;
 370
 371                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 372                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 373
 374                 MagicWord::clearCache();
 375                 RepoGroup::destroySingleton();
 376                 FileBackendGroup::destroySingleton();
 377
 378                 # Create dummy files in storage
 379                 $this->setupUploads();
 380
 381                 # Publish the articles after we have the final language set
 382                 $this->publishTestArticles();
 383
 384                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 385                 RepoGroup::destroySingleton();
 386                 FileBackendGroup::destroySingleton();
 387                 MessageCache::destroyInstance();
 388
 389                 return $context;
 390         }
 391
 392         /**
 393          * Get an FS upload directory (only applies to FSFileBackend)
 394          *
 395          * @return String: the directory
 396          */
 397         protected function getUploadDir() {
 398                 if ( $this->keepUploads ) {
 399                         $dir = wfTempDir() . '/mwParser-images';
 400
 401                         if ( is_dir( $dir ) ) {
 402                                 return $dir;
 403                         }
 404                 } else {
 405                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 406                 }
 407
 408                 // wfDebug( "Creating upload directory $dir\n" );
 409                 if ( file_exists( $dir ) ) {
 410                         wfDebug( "Already exists!\n" );
 411                         return $dir;
 412                 }
 413
 414                 return $dir;
 415         }
 416
 417         /**
 418          * Create a dummy uploads directory which will contain a couple
 419          * of files in order to pass existence tests.
 420          *
 421          * @return String: the directory
 422          */
 423         protected function setupUploads() {
 424                 global $IP;
 425
 426                 $base = $this->getBaseDir();
 427                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 428                 $backend->prepare( array( 'dir' => "$base/local-public/3/3a" ) );
 429                 $backend->store( array(
 430                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/3/3a/Foobar.jpg"
 431                 ) );
 432                 $backend->prepare( array( 'dir' => "$base/local-public/0/09" ) );
 433                 $backend->store( array(
 434                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/0/09/Bad.jpg"
 435                 ) );
 436         }
 437
 438         /**
 439          * Restore default values and perform any necessary clean-up
 440          * after each test runs.
 441          */
 442         protected function teardownGlobals() {
 443                 $this->teardownUploads();
 444
 445                 foreach ( $this->savedGlobals as $var => $val ) {
 446                         $GLOBALS[$var] = $val;
 447                 }
 448
 449                 RepoGroup::destroySingleton();
 450                 LinkCache::singleton()->clear();
 451         }
 452
 453         /**
 454          * Remove the dummy uploads directory
 455          */
 456         private function teardownUploads() {
 457                 if ( $this->keepUploads ) {
 458                         return;
 459                 }
 460
 461                 $base = $this->getBaseDir();
 462                 // delete the files first, then the dirs.
 463                 self::deleteFiles(
 464                         array(
 465                                 "$base/local-public/3/3a/Foobar.jpg",
 466                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 467                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 468                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 469                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 470                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 471                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 472                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 473                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 474                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 475                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 476                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 477                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 478                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 479                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 480
 481                                 "$base/local-public/0/09/Bad.jpg",
 482                                 "$base/local-thumb/0/09/Bad.jpg",
 483
 484                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 485                         )
 486                 );
 487         }
 488
 489         /**
 490          * Delete the specified files, if they exist.
 491          * @param $files Array: full paths to files to delete.
 492          */
 493         private static function deleteFiles( $files ) {
 494                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 495                 foreach ( $files as $file ) {
 496                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 497                 }
 498                 foreach ( $files as $file ) {
 499                         $tmp = $file;
 500                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 501                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 502                                         break;
 503                                 }
 504                         }
 505                 }
 506         }
 507
 508         protected function getBaseDir() {
 509                 return 'mwstore://local-backend';
 510         }
 511
 512         public function parserTestProvider() {
 513                 if ( $this->file === false ) {
 514                         global $wgParserTestFiles;
 515                         $this->file = $wgParserTestFiles[0];
 516                 }
 517                 return new TestFileIterator( $this->file, $this );
 518         }
 519
 520         /**
 521          * Set the file from whose tests will be run by this instance
 522          */
 523         public function setParserTestFile( $filename ) {
 524                 $this->file = $filename;
 525         }
 526
 527         /**
 528          * @group medium
 529          * @dataProvider parserTestProvider
 530          */
 531         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 532                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 533                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 534                         //$this->markTestSkipped( 'Filtered out by the user' );
 535                         return;
 536                 }
 537
 538                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 539                         // parser tests frequently assume that the main namespace contains wikitext.
 540                         // @todo: When setting up pages, force the content model. Only skip if
 541                         //        $wgtContentModelUseDB is false.
 542                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 543                                 . "skipping parser test: $desc" );
 544                 }
 545
 546                 wfDebug( "Running parser test: $desc\n" );
 547
 548                 $opts = $this->parseOptions( $opts );
 549                 $context = $this->setupGlobals( $opts, $config );
 550
 551                 $user = $context->getUser();
 552                 $options = ParserOptions::newFromContext( $context );
 553
 554                 if ( isset( $opts['title'] ) ) {
 555                         $titleText = $opts['title'];
 556                 } else {
 557                         $titleText = 'Parser test';
 558                 }
 559
 560                 $local = isset( $opts['local'] );
 561                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 562                 $parser = $this->getParser( $preprocessor );
 563
 564                 $title = Title::newFromText( $titleText );
 565
 566                 if ( isset( $opts['pst'] ) ) {
 567                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 568                 } elseif ( isset( $opts['msg'] ) ) {
 569                         $out = $parser->transformMsg( $input, $options, $title );
 570                 } elseif ( isset( $opts['section'] ) ) {
 571                         $section = $opts['section'];
 572                         $out = $parser->getSection( $input, $section );
 573                 } elseif ( isset( $opts['replace'] ) ) {
 574                         $section = $opts['replace'][0];
 575                         $replace = $opts['replace'][1];
 576                         $out = $parser->replaceSection( $input, $section, $replace );
 577                 } elseif ( isset( $opts['comment'] ) ) {
 578                         $out = Linker::formatComment( $input, $title, $local );
 579                 } elseif ( isset( $opts['preload'] ) ) {
 580                         $out = $parser->getpreloadText( $input, $title, $options );
 581                 } else {
 582                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 583                         $out = $output->getText();
 584
 585                         if ( isset( $opts['showtitle'] ) ) {
 586                                 if ( $output->getTitleText() ) {
 587                                         $title = $output->getTitleText();
 588                                 }
 589
 590                                 $out = "$title\n$out";
 591                         }
 592
 593                         if ( isset( $opts['ill'] ) ) {
 594                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 595                         } elseif ( isset( $opts['cat'] ) ) {
 596                                 $outputPage = $context->getOutput();
 597                                 $outputPage->addCategoryLinks( $output->getCategories() );
 598                                 $cats = $outputPage->getCategoryLinks();
 599
 600                                 if ( isset( $cats['normal'] ) ) {
 601                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 602                                 } else {
 603                                         $out = '';
 604                                 }
 605                         }
 606                         $parser->mPreprocessor = null;
 607
 608                         $result = $this->tidy( $result );
 609                 }
 610
 611                 $this->teardownGlobals();
 612
 613                 $this->assertEquals( $result, $out, $desc );
 614         }
 615
 616         /**
 617          * Run a fuzz test series
 618          * Draw input from a set of test files
 619          *
 620          * @todo fixme Needs some work to not eat memory until the world explodes
 621          *
 622          * @group ParserFuzz
 623          */
 624         function testFuzzTests() {
 625                 global $wgParserTestFiles;
 626
 627                 $files = $wgParserTestFiles;
 628
 629                 if ( $this->getCliArg( 'file=' ) ) {
 630                         $files = array( $this->getCliArg( 'file=' ) );
 631                 }
 632
 633                 $dict = $this->getFuzzInput( $files );
 634                 $dictSize = strlen( $dict );
 635                 $logMaxLength = log( $this->maxFuzzTestLength );
 636
 637                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 638
 639                 $user = new User;
 640                 $opts = ParserOptions::newFromUser( $user );
 641                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 642
 643                 $id = 1;
 644
 645                 while ( true ) {
 646
 647                         // Generate test input
 648                         mt_srand( ++$this->fuzzSeed );
 649                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 650                         $input = '';
 651
 652                         while ( strlen( $input ) < $totalLength ) {
 653                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 654                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 655                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 656                                 $input .= substr( $dict, $offset, $hairLength );
 657                         }
 658
 659                         $this->setupGlobals();
 660                         $parser = $this->getParser();
 661
 662                         // Run the test
 663                         try {
 664                                 $parser->parse( $input, $title, $opts );
 665                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 666                         } catch ( Exception $exception ) {
 667                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 668
 669                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 670                         }
 671
 672                         $this->teardownGlobals();
 673                         $parser->__destruct();
 674
 675                         if ( $id % 100 == 0 ) {
 676                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 677                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 678                                 if ( $usage > 90 ) {
 679                                         $ret = "Out of memory:\n";
 680                                         $memStats = $this->getMemoryBreakdown();
 681
 682                                         foreach ( $memStats as $name => $usage ) {
 683                                                 $ret .= "$name: $usage\n";
 684                                         }
 685
 686                                         throw new MWException( $ret );
 687                                 }
 688                         }
 689
 690                         $id++;
 691
 692                 }
 693         }
 694
 695         //Various getter functions
 696
 697         /**
 698          * Get an input dictionary from a set of parser test files
 699          */
 700         function getFuzzInput( $filenames ) {
 701                 $dict = '';
 702
 703                 foreach ( $filenames as $filename ) {
 704                         $contents = file_get_contents( $filename );
 705                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 706
 707                         foreach ( $matches[1] as $match ) {
 708                                 $dict .= $match . "\n";
 709                         }
 710                 }
 711
 712                 return $dict;
 713         }
 714
 715         /**
 716          * Get a memory usage breakdown
 717          */
 718         function getMemoryBreakdown() {
 719                 $memStats = array();
 720
 721                 foreach ( $GLOBALS as $name => $value ) {
 722                         $memStats['$' . $name] = strlen( serialize( $value ) );
 723                 }
 724
 725                 $classes = get_declared_classes();
 726
 727                 foreach ( $classes as $class ) {
 728                         $rc = new ReflectionClass( $class );
 729                         $props = $rc->getStaticProperties();
 730                         $memStats[$class] = strlen( serialize( $props ) );
 731                         $methods = $rc->getMethods();
 732
 733                         foreach ( $methods as $method ) {
 734                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 735                         }
 736                 }
 737
 738                 $functions = get_defined_functions();
 739
 740                 foreach ( $functions['user'] as $function ) {
 741                         $rf = new ReflectionFunction( $function );
 742                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 743                 }
 744
 745                 asort( $memStats );
 746
 747                 return $memStats;
 748         }
 749
 750         /**
 751          * Get a Parser object
 752          */
 753         function getParser( $preprocessor = null ) {
 754                 global $wgParserConf;
 755
 756                 $class = $wgParserConf['class'];
 757                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 758
 759                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 760
 761                 return $parser;
 762         }
 763
 764         //Various action functions
 765
 766         public function addArticle( $name, $text, $line ) {
 767                 self::$articles[$name] = array( $text, $line );
 768         }
 769
 770         public function publishTestArticles() {
 771                 if ( empty( self::$articles ) ) {
 772                         return;
 773                 }
 774
 775                 foreach ( self::$articles as $name => $info ) {
 776                         list( $text, $line ) = $info;
 777                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 778                 }
 779         }
 780
 781         /**
 782          * Steal a callback function from the primary parser, save it for
 783          * application to our scary parser. If the hook is not installed,
 784          * abort processing of this file.
 785          *
 786          * @param $name String
 787          * @return Bool true if tag hook is present
 788          */
 789         public function requireHook( $name ) {
 790                 global $wgParser;
 791                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 792                 return isset( $wgParser->mTagHooks[$name] );
 793         }
 794
 795         public function requireFunctionHook( $name ) {
 796                 global $wgParser;
 797                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 798                 return isset( $wgParser->mFunctionHooks[$name] );
 799         }
 800
 801         //Various "cleanup" functions
 802
 803         /**
 804          * Run the "tidy" command on text if the $wgUseTidy
 805          * global is true
 806          *
 807          * @param $text String: the text to tidy
 808          * @return String
 809          */
 810         protected function tidy( $text ) {
 811                 global $wgUseTidy;
 812
 813                 if ( $wgUseTidy ) {
 814                         $text = MWTidy::tidy( $text );
 815                 }
 816
 817                 return $text;
 818         }
 819
 820         /**
 821          * Remove last character if it is a newline
 822          */
 823         public function removeEndingNewline( $s ) {
 824                 if ( substr( $s, -1 ) === "\n" ) {
 825                         return substr( $s, 0, -1 );
 826                 } else {
 827                         return $s;
 828                 }
 829         }
 830
 831         //Test options parser functions
 832
 833         protected function parseOptions( $instring ) {
 834                 $opts = array();
 835                 // foo
 836                 // foo=bar
 837                 // foo="bar baz"
 838                 // foo=[[bar baz]]
 839                 // foo=bar,"baz quux"
 840                 $regex = '/\b
 841                         ([\w-]+)                                                # Key
 842                         \b
 843                         (?:\s*
 844                                 =                                               # First sub-value
 845                                 \s*
 846                                 (
 847                                         "
 848                                                 [^"]*                   # Quoted val
 849                                         "
 850                                 |
 851                                         \[\[
 852                                                 [^]]*                   # Link target
 853                                         \]\]
 854                                 |
 855                                         [\w-]+                          # Plain word
 856                                 )
 857                                 (?:\s*
 858                                         ,                                       # Sub-vals 1..N
 859                                         \s*
 860                                         (
 861                                                 "[^"]*"                 # Quoted val
 862                                         |
 863                                                 \[\[[^]]*\]\]   # Link target
 864                                         |
 865                                                 [\w-]+                  # Plain word
 866                                         )
 867                                 )*
 868                         )?
 869                         /x';
 870
 871                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 872                         foreach ( $matches as $bits ) {
 873                                 array_shift( $bits );
 874                                 $key = strtolower( array_shift( $bits ) );
 875                                 if ( count( $bits ) == 0 ) {
 876                                         $opts[$key] = true;
 877                                 } elseif ( count( $bits ) == 1 ) {
 878                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 879                                 } else {
 880                                         // Array!
 881                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 882                                 }
 883                         }
 884                 }
 885                 return $opts;
 886         }
 887
 888         protected function cleanupOption( $opt ) {
 889                 if ( substr( $opt, 0, 1 ) == '"' ) {
 890                         return substr( $opt, 1, -1 );
 891                 }
 892
 893                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 894                         return substr( $opt, 2, -2 );
 895                 }
 896                 return $opt;
 897         }
 898
 899         /**
 900          * Use a regex to find out the value of an option
 901          * @param $key String: name of option val to retrieve
 902          * @param $opts Options array to look in
 903          * @param $default Mixed: default value returned if not found
 904          */
 905         protected static function getOptionValue( $key, $opts, $default ) {
 906                 $key = strtolower( $key );
 907
 908                 if ( isset( $opts[$key] ) ) {
 909                         return $opts[$key];
 910                 } else {
 911                         return $default;
 912                 }
 913         }
 914 }