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
  12         static protected $articles = array();   // Array of test articles defined by the tests
  13         /* The dataProvider is run on a different instance than the test, so it must be static
  14          * When running tests from several files, all tests will see all articles.
  15          */
  16
  17         public $uploadDir;
  18         public $keepUploads = false;
  19         public $runDisabled = 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         function setUp() {
  36                 global $wgContLang, $wgNamespaceProtection, $wgNamespaceAliases;
  37                 global $wgHooks, $IP;
  38                 $wgContLang = Language::factory( 'en' );
  39
  40                 //Setup CLI arguments
  41                 if ( $this->getCliArg( 'regex=' ) ) {
  42                         $this->regex = $this->getCliArg( 'regex=' );
  43                 } else {
  44                         # Matches anything
  45                         $this->regex = '';
  46                 }
  47
  48                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  49
  50                 $tmpGlobals = array();
  51
  52                 $tmpGlobals['wgScript'] = '/index.php';
  53                 $tmpGlobals['wgScriptPath'] = '/';
  54                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  55                 $tmpGlobals['wgStyleSheetPath'] = '/skins';
  56                 $tmpGlobals['wgStylePath'] = '/skins';
  57                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  58                 $tmpGlobals['wgLocalFileRepo'] = array(
  59                         'class'           => 'LocalRepo',
  60                         'name'            => 'local',
  61                         'url'             => 'http://example.com/images',
  62                         'hashLevels'      => 2,
  63                         'transformVia404' => false,
  64                         'backend'         => 'local-backend'
  65                 );
  66                 $tmpGlobals['wgForeignFileRepos'] = array();
  67                 $tmpGlobals['wgEnableParserCache'] = false;
  68                 $tmpGlobals['wgHooks'] = $wgHooks;
  69                 $tmpGlobals['wgDeferredUpdateList'] = array();
  70                 $tmpGlobals['wgMemc'] = wfGetMainCache();
  71                 $tmpGlobals['messageMemc'] = wfGetMessageCacheStorage();
  72                 $tmpGlobals['parserMemc'] = wfGetParserCacheStorage();
  73
  74                 // $tmpGlobals['wgContLang'] = new StubContLang;
  75                 $tmpGlobals['wgUser'] = new User;
  76                 $context = new RequestContext();
  77                 $tmpGlobals['wgLang'] = $context->getLanguage();
  78                 $tmpGlobals['wgOut'] = $context->getOutput();
  79                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
  80                 $tmpGlobals['wgRequest'] = $context->getRequest();
  81
  82                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
  83                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
  84                 }
  85
  86
  87                 foreach ( $tmpGlobals as $var => $val ) {
  88                         if ( array_key_exists( $var, $GLOBALS ) ) {
  89                                 $this->savedInitialGlobals[$var] = $GLOBALS[$var];
  90                         }
  91
  92                         $GLOBALS[$var] = $val;
  93                 }
  94
  95                 $this->savedWeirdGlobals['mw_namespace_protection'] = $wgNamespaceProtection[NS_MEDIAWIKI];
  96                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
  97                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
  98
  99                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 100                 $wgNamespaceAliases['Image'] = NS_FILE;
 101                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 102         }
 103
 104         public function tearDown() {
 105                 foreach ( $this->savedInitialGlobals as $var => $val ) {
 106                         $GLOBALS[$var] = $val;
 107                 }
 108
 109                 global $wgNamespaceProtection, $wgNamespaceAliases;
 110
 111                 $wgNamespaceProtection[NS_MEDIAWIKI] = $this->savedWeirdGlobals['mw_namespace_protection'];
 112                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 113                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 114
 115                 // Restore backends
 116                 RepoGroup::destroySingleton();
 117                 FileBackendGroup::destroySingleton();
 118         }
 119
 120         function addDBData() {
 121                 $this->tablesUsed[] = 'image';
 122                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 123                 # for testing inter-language links
 124                 $this->db->insert( 'interwiki', array(
 125                         array( 'iw_prefix' => 'wikipedia',
 126                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 127                                    'iw_api'    => '',
 128                                    'iw_wikiid' => '',
 129                                    'iw_local'  => 0 ),
 130                         array( 'iw_prefix' => 'meatball',
 131                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 132                                    'iw_api'    => '',
 133                                    'iw_wikiid' => '',
 134                                    'iw_local'  => 0 ),
 135                         array( 'iw_prefix' => 'zh',
 136                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 137                                    'iw_api'    => '',
 138                                    'iw_wikiid' => '',
 139                                    'iw_local'  => 1 ),
 140                         array( 'iw_prefix' => 'es',
 141                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 142                                    'iw_api'    => '',
 143                                    'iw_wikiid' => '',
 144                                    'iw_local'  => 1 ),
 145                         array( 'iw_prefix' => 'fr',
 146                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 147                                    'iw_api'    => '',
 148                                    'iw_wikiid' => '',
 149                                    'iw_local'  => 1 ),
 150                         array( 'iw_prefix' => 'ru',
 151                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 152                                    'iw_api'    => '',
 153                                    'iw_wikiid' => '',
 154                                    'iw_local'  => 1 ),
 155                         /**
 156                          * @todo Fixme! Why are we inserting duplicate data here? Shouldn't
 157                          * need this IGNORE or shouldn't need the insert at all.
 158                          */
 159                         ), __METHOD__, array( 'IGNORE' ) );
 160
 161
 162                 # Update certain things in site_stats
 163                 $this->db->insert( 'site_stats',
 164                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 165                         __METHOD__, array( 'IGNORE' ) );
 166
 167                 # Reinitialise the LocalisationCache to match the database state
 168                 Language::getLocalisationCache()->unloadAll();
 169
 170                 # Clear the message cache
 171                 MessageCache::singleton()->clear();
 172
 173                 $this->uploadDir = $this->setupUploadDir();
 174
 175                 $user = User::newFromId( 0 );
 176                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 177
 178                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 179                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', array(
 180                         'size'        => 12345,
 181                         'width'       => 1941,
 182                         'height'      => 220,
 183                         'bits'        => 24,
 184                         'media_type'  => MEDIATYPE_BITMAP,
 185                         'mime'        => 'image/jpeg',
 186                         'metadata'    => serialize( array() ),
 187                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 188                         'fileExists'  => true
 189                         ), $this->db->timestamp( '20010115123500' ), $user );
 190
 191                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 192                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 193                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', array(
 194                         'size'        => 12345,
 195                         'width'       => 320,
 196                         'height'      => 240,
 197                         'bits'        => 24,
 198                         'media_type'  => MEDIATYPE_BITMAP,
 199                         'mime'        => 'image/jpeg',
 200                         'metadata'    => serialize( array() ),
 201                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 202                         'fileExists'  => true
 203                         ), $this->db->timestamp( '20010115123500' ), $user );
 204
 205         }
 206
 207
 208
 209
 210         //ParserTest setup/teardown functions
 211
 212         /**
 213          * Set up the global variables for a consistent environment for each test.
 214          * Ideally this should replace the global configuration entirely.
 215          */
 216         protected function setupGlobals( $opts = '', $config = '' ) {
 217                 # Find out values for some special options.
 218                 $lang =
 219                         self::getOptionValue( 'language', $opts, 'en' );
 220                 $variant =
 221                         self::getOptionValue( 'variant', $opts, false );
 222                 $maxtoclevel =
 223                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 224                 $linkHolderBatchSize =
 225                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 226
 227                 $settings = array(
 228                         'wgServer' => 'http://Britney-Spears',
 229                         'wgScript' => '/index.php',
 230                         'wgScriptPath' => '/',
 231                         'wgArticlePath' => '/wiki/$1',
 232                         'wgExtensionAssetsPath' => '/extensions',
 233                         'wgActionPaths' => array(),
 234                         'wgLocalFileRepo' => array(
 235                                 'class'           => 'LocalRepo',
 236                                 'name'            => 'local',
 237                                 'url'             => 'http://example.com/images',
 238                                 'hashLevels'      => 2,
 239                                 'transformVia404' => false,
 240                                 'backend'         => new FSFileBackend( array(
 241                                         'name'        => 'local-backend',
 242                                         'lockManager' => 'nullLockManager',
 243                                         'containerPaths' => array(
 244                                                 'local-public' => "$this->uploadDir",
 245                                                 'local-thumb'  => "$this->uploadDir/thumb",
 246                                         )
 247                                 ) )
 248                         ),
 249                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 250                         'wgStylePath' => '/skins',
 251                         'wgStyleSheetPath' => '/skins',
 252                         'wgSitename' => 'MediaWiki',
 253                         'wgLanguageCode' => $lang,
 254                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 255                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 256                         'wgLang' => null,
 257                         'wgContLang' => null,
 258                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 259                         'wgMaxTocLevel' => $maxtoclevel,
 260                         'wgCapitalLinks' => true,
 261                         'wgNoFollowLinks' => true,
 262                         'wgNoFollowDomainExceptions' => array(),
 263                         'wgThumbnailScriptPath' => false,
 264                         'wgUseImageResize' => false,
 265                         'wgUseTeX' => isset( $opts['math'] ),
 266                         'wgMathDirectory' => $this->uploadDir . '/math',
 267                         'wgLocaltimezone' => 'UTC',
 268                         'wgAllowExternalImages' => true,
 269                         'wgUseTidy' => false,
 270                         'wgDefaultLanguageVariant' => $variant,
 271                         'wgVariantArticlePath' => false,
 272                         'wgGroupPermissions' => array( '*' => array(
 273                                 'createaccount' => true,
 274                                 'read'          => true,
 275                                 'edit'          => true,
 276                                 'createpage'    => true,
 277                                 'createtalk'    => true,
 278                         ) ),
 279                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 280                         'wgDefaultExternalStore' => array(),
 281                         'wgForeignFileRepos' => array(),
 282                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 283                         'wgExperimentalHtmlIds' => false,
 284                         'wgExternalLinkTarget' => false,
 285                         'wgAlwaysUseTidy' => false,
 286                         'wgHtml5' => true,
 287                         'wgCleanupPresentationalAttributes' => true,
 288                         'wgWellFormedXml' => true,
 289                         'wgAllowMicrodataAttributes' => true,
 290                         'wgAdaptiveMessageCache' => true,
 291                         'wgUseDatabaseMessages' => true,
 292                 );
 293
 294                 if ( $config ) {
 295                         $configLines = explode( "\n", $config );
 296
 297                         foreach ( $configLines as $line ) {
 298                                 list( $var, $value ) = explode( '=', $line, 2 );
 299
 300                                 $settings[$var] = eval( "return $value;" ); //???
 301                         }
 302                 }
 303
 304                 $this->savedGlobals = array();
 305
 306                 foreach ( $settings as $var => $val ) {
 307                         if ( array_key_exists( $var, $GLOBALS ) ) {
 308                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 309                         }
 310
 311                         $GLOBALS[$var] = $val;
 312                 }
 313
 314                 $langObj = Language::factory( $lang );
 315                 $GLOBALS['wgContLang'] = $langObj;
 316                 $context = new RequestContext();
 317                 $GLOBALS['wgLang'] = $context->getLanguage();
 318
 319                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 320                 $GLOBALS['wgOut'] = $context->getOutput();
 321                 $GLOBALS['wgUser'] = $context->getUser();
 322
 323                 global $wgHooks;
 324
 325                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 326                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 327
 328                 MagicWord::clearCache();
 329                 RepoGroup::destroySingleton();
 330                 FileBackendGroup::destroySingleton();
 331
 332                 # Publish the articles after we have the final language set
 333                 $this->publishTestArticles();
 334
 335                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 336                 RepoGroup::destroySingleton();
 337                 FileBackendGroup::destroySingleton();
 338                 MessageCache::singleton()->destroyInstance();
 339
 340                 return $context;
 341         }
 342
 343         /**
 344          * Create a dummy uploads directory which will contain a couple
 345          * of files in order to pass existence tests.
 346          *
 347          * @return String: the directory
 348          */
 349         protected function setupUploadDir() {
 350                 global $IP;
 351
 352                 if ( $this->keepUploads ) {
 353                         $dir = wfTempDir() . '/mwParser-images';
 354
 355                         if ( is_dir( $dir ) ) {
 356                                 return $dir;
 357                         }
 358                 } else {
 359                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 360                 }
 361
 362                 // wfDebug( "Creating upload directory $dir\n" );
 363                 if ( file_exists( $dir ) ) {
 364                         wfDebug( "Already exists!\n" );
 365                         return $dir;
 366                 }
 367
 368                 wfMkdirParents( $dir . '/3/3a', null, __METHOD__ );
 369                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 370                 wfMkdirParents( $dir . '/0/09', null, __METHOD__ );
 371                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 372
 373                 return $dir;
 374         }
 375
 376         /**
 377          * Restore default values and perform any necessary clean-up
 378          * after each test runs.
 379          */
 380         protected function teardownGlobals() {
 381                 foreach ( $this->savedGlobals as $var => $val ) {
 382                         $GLOBALS[$var] = $val;
 383                 }
 384
 385                 RepoGroup::destroySingleton();
 386                 LinkCache::singleton()->clear();
 387
 388                 $this->teardownUploadDir( $this->uploadDir );
 389         }
 390
 391         /**
 392          * Remove the dummy uploads directory
 393          */
 394         private function teardownUploadDir( $dir ) {
 395                 if ( $this->keepUploads ) {
 396                         return;
 397                 }
 398
 399                 // delete the files first, then the dirs.
 400                 self::deleteFiles(
 401                         array (
 402                                 "$dir/3/3a/Foobar.jpg",
 403                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 404                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 405                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 406                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 407
 408                                 "$dir/0/09/Bad.jpg",
 409
 410                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 411                         )
 412                 );
 413
 414                 self::deleteDirs(
 415                         array (
 416                                 "$dir/3/3a",
 417                                 "$dir/3",
 418                                 "$dir/thumb/6/65",
 419                                 "$dir/thumb/6",
 420                                 "$dir/thumb/3/3a/Foobar.jpg",
 421                                 "$dir/thumb/3/3a",
 422                                 "$dir/thumb/3",
 423
 424                                 "$dir/0/09/",
 425                                 "$dir/0/",
 426                                 "$dir/thumb",
 427                                 "$dir/math/f/a/5",
 428                                 "$dir/math/f/a",
 429                                 "$dir/math/f",
 430                                 "$dir/math",
 431                                 "$dir",
 432                         )
 433                 );
 434         }
 435
 436         /**
 437          * Delete the specified files, if they exist.
 438          * @param $files Array: full paths to files to delete.
 439          */
 440         private static function deleteFiles( $files ) {
 441                 foreach ( $files as $file ) {
 442                         if ( file_exists( $file ) ) {
 443                                 unlink( $file );
 444                         }
 445                 }
 446         }
 447
 448         /**
 449          * Delete the specified directories, if they exist. Must be empty.
 450          * @param $dirs Array: full paths to directories to delete.
 451          */
 452         private static function deleteDirs( $dirs ) {
 453                 foreach ( $dirs as $dir ) {
 454                         if ( is_dir( $dir ) ) {
 455                                 rmdir( $dir );
 456                         }
 457                 }
 458         }
 459
 460         public function parserTestProvider() {
 461                 if ( $this->file === false ) {
 462                         global $wgParserTestFiles;
 463                         $this->file = $wgParserTestFiles[0];
 464                 }
 465                 return new TestFileIterator( $this->file, $this );
 466         }
 467
 468         /**
 469          * Set the file from whose tests will be run by this instance
 470          */
 471         public function setParserTestFile( $filename ) {
 472                 $this->file = $filename;
 473         }
 474
 475         /** @dataProvider parserTestProvider */
 476         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 477                 if ( !preg_match( '/' . $this->regex . '/', $desc ) ) return; //$this->markTestSkipped( 'Filtered out by the user' );
 478
 479                 wfDebug( "Running parser test: $desc\n" );
 480
 481                 $opts = $this->parseOptions( $opts );
 482                 $context = $this->setupGlobals( $opts, $config );
 483
 484                 $user = $context->getUser();
 485                 $options = ParserOptions::newFromContext( $context );
 486
 487                 if ( isset( $opts['title'] ) ) {
 488                         $titleText = $opts['title'];
 489                 }
 490                 else {
 491                         $titleText = 'Parser test';
 492                 }
 493
 494                 $local = isset( $opts['local'] );
 495                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 496                 $parser = $this->getParser( $preprocessor );
 497
 498                 $title = Title::newFromText( $titleText );
 499
 500                 if ( isset( $opts['pst'] ) ) {
 501                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 502                 } elseif ( isset( $opts['msg'] ) ) {
 503                         $out = $parser->transformMsg( $input, $options, $title );
 504                 } elseif ( isset( $opts['section'] ) ) {
 505                         $section = $opts['section'];
 506                         $out = $parser->getSection( $input, $section );
 507                 } elseif ( isset( $opts['replace'] ) ) {
 508                         $section = $opts['replace'][0];
 509                         $replace = $opts['replace'][1];
 510                         $out = $parser->replaceSection( $input, $section, $replace );
 511                 } elseif ( isset( $opts['comment'] ) ) {
 512                         $out = Linker::formatComment( $input, $title, $local );
 513                 } elseif ( isset( $opts['preload'] ) ) {
 514                         $out = $parser->getpreloadText( $input, $title, $options );
 515                 } else {
 516                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 517                         $out = $output->getText();
 518
 519                         if ( isset( $opts['showtitle'] ) ) {
 520                                 if ( $output->getTitleText() ) {
 521                                         $title = $output->getTitleText();
 522                                 }
 523
 524                                 $out = "$title\n$out";
 525                         }
 526
 527                         if ( isset( $opts['ill'] ) ) {
 528                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 529                         } elseif ( isset( $opts['cat'] ) ) {
 530                                 $outputPage = $context->getOutput();
 531                                 $outputPage->addCategoryLinks( $output->getCategories() );
 532                                 $cats = $outputPage->getCategoryLinks();
 533
 534                                 if ( isset( $cats['normal'] ) ) {
 535                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 536                                 } else {
 537                                         $out = '';
 538                                 }
 539                         }
 540                         $parser->mPreprocessor = null;
 541
 542                         $result = $this->tidy( $result );
 543                 }
 544
 545                 $this->teardownGlobals();
 546
 547                 $this->assertEquals( $result, $out, $desc );
 548         }
 549
 550         /**
 551          * Run a fuzz test series
 552          * Draw input from a set of test files
 553          *
 554          * @todo @fixme Needs some work to not eat memory until the world explodes
 555          *
 556          * @group Broken
 557          */
 558         function testFuzzTests() {
 559                 global $wgParserTestFiles;
 560
 561                 $files = $wgParserTestFiles;
 562
 563                 if( $this->getCliArg( 'file=' ) ) {
 564                         $files = array( $this->getCliArg( 'file=' ) );
 565                 }
 566
 567                 $dict = $this->getFuzzInput( $files );
 568                 $dictSize = strlen( $dict );
 569                 $logMaxLength = log( $this->maxFuzzTestLength );
 570
 571                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 572
 573                 $user = new User;
 574                 $opts = ParserOptions::newFromUser( $user );
 575                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 576
 577                 $id = 1;
 578
 579                 while ( true ) {
 580
 581                         // Generate test input
 582                         mt_srand( ++$this->fuzzSeed );
 583                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 584                         $input = '';
 585
 586                         while ( strlen( $input ) < $totalLength ) {
 587                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 588                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 589                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 590                                 $input .= substr( $dict, $offset, $hairLength );
 591                         }
 592
 593                         $this->setupGlobals();
 594                         $parser = $this->getParser();
 595
 596                         // Run the test
 597                         try {
 598                                 $parser->parse( $input, $title, $opts );
 599                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 600                         } catch ( Exception $exception ) {
 601                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 602
 603                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 604                         }
 605
 606                         $this->teardownGlobals();
 607                         $parser->__destruct();
 608
 609                         if ( $id % 100 == 0 ) {
 610                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 611                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 612                                 if ( $usage > 90 ) {
 613                                         $ret = "Out of memory:\n";
 614                                         $memStats = $this->getMemoryBreakdown();
 615
 616                                         foreach ( $memStats as $name => $usage ) {
 617                                                 $ret .= "$name: $usage\n";
 618                                         }
 619
 620                                         throw new MWException( $ret );
 621                                 }
 622                         }
 623
 624                         $id++;
 625
 626                 }
 627         }
 628
 629         //Various getter functions
 630
 631         /**
 632          * Get an input dictionary from a set of parser test files
 633          */
 634         function getFuzzInput( $filenames ) {
 635                 $dict = '';
 636
 637                 foreach ( $filenames as $filename ) {
 638                         $contents = file_get_contents( $filename );
 639                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 640
 641                         foreach ( $matches[1] as $match ) {
 642                                 $dict .= $match . "\n";
 643                         }
 644                 }
 645
 646                 return $dict;
 647         }
 648
 649         /**
 650          * Get a memory usage breakdown
 651          */
 652         function getMemoryBreakdown() {
 653                 $memStats = array();
 654
 655                 foreach ( $GLOBALS as $name => $value ) {
 656                         $memStats['$' . $name] = strlen( serialize( $value ) );
 657                 }
 658
 659                 $classes = get_declared_classes();
 660
 661                 foreach ( $classes as $class ) {
 662                         $rc = new ReflectionClass( $class );
 663                         $props = $rc->getStaticProperties();
 664                         $memStats[$class] = strlen( serialize( $props ) );
 665                         $methods = $rc->getMethods();
 666
 667                         foreach ( $methods as $method ) {
 668                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 669                         }
 670                 }
 671
 672                 $functions = get_defined_functions();
 673
 674                 foreach ( $functions['user'] as $function ) {
 675                         $rf = new ReflectionFunction( $function );
 676                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 677                 }
 678
 679                 asort( $memStats );
 680
 681                 return $memStats;
 682         }
 683
 684         /**
 685          * Get a Parser object
 686          */
 687         function getParser( $preprocessor = null ) {
 688                 global $wgParserConf;
 689
 690                 $class = $wgParserConf['class'];
 691                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 692
 693                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 694
 695                 return $parser;
 696         }
 697
 698         //Various action functions
 699
 700         public function addArticle( $name, $text, $line ) {
 701                 self::$articles[$name] = $text;
 702         }
 703
 704         public function publishTestArticles() {
 705                 if ( empty( self::$articles ) ) {
 706                         return;
 707                 }
 708
 709                 foreach ( self::$articles as $name => $text ) {
 710                         $title = Title::newFromText( $name );
 711
 712                         if ( $title->getArticleID( Title::GAID_FOR_UPDATE ) == 0 ) {
 713                                 ParserTest::addArticle( $name, $text );
 714                         }
 715                 }
 716         }
 717
 718         /**
 719          * Steal a callback function from the primary parser, save it for
 720          * application to our scary parser. If the hook is not installed,
 721          * abort processing of this file.
 722          *
 723          * @param $name String
 724          * @return Bool true if tag hook is present
 725          */
 726         public function requireHook( $name ) {
 727                 global $wgParser;
 728                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 729                 return isset( $wgParser->mTagHooks[$name] );
 730         }
 731
 732         public function requireFunctionHook( $name ) {
 733                 global $wgParser;
 734                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 735                 return isset( $wgParser->mFunctionHooks[$name] );
 736         }
 737         //Various "cleanup" functions
 738
 739         /**
 740          * Run the "tidy" command on text if the $wgUseTidy
 741          * global is true
 742          *
 743          * @param $text String: the text to tidy
 744          * @return String
 745          */
 746         protected function tidy( $text ) {
 747                 global $wgUseTidy;
 748
 749                 if ( $wgUseTidy ) {
 750                         $text = MWTidy::tidy( $text );
 751                 }
 752
 753                 return $text;
 754         }
 755
 756         /**
 757          * Remove last character if it is a newline
 758          */
 759         public function removeEndingNewline( $s ) {
 760                 if ( substr( $s, -1 ) === "\n" ) {
 761                         return substr( $s, 0, -1 );
 762                 }
 763                 else {
 764                         return $s;
 765                 }
 766         }
 767
 768         public function showRunFile( $file ) {
 769                 /* NOP */
 770         }
 771
 772         //Test options parser functions
 773
 774         protected function parseOptions( $instring ) {
 775                 $opts = array();
 776                 // foo
 777                 // foo=bar
 778                 // foo="bar baz"
 779                 // foo=[[bar baz]]
 780                 // foo=bar,"baz quux"
 781                 $regex = '/\b
 782                         ([\w-]+)                                                # Key
 783                         \b
 784                         (?:\s*
 785                                 =                                               # First sub-value
 786                                 \s*
 787                                 (
 788                                         "
 789                                                 [^"]*                   # Quoted val
 790                                         "
 791                                 |
 792                                         \[\[
 793                                                 [^]]*                   # Link target
 794                                         \]\]
 795                                 |
 796                                         [\w-]+                          # Plain word
 797                                 )
 798                                 (?:\s*
 799                                         ,                                       # Sub-vals 1..N
 800                                         \s*
 801                                         (
 802                                                 "[^"]*"                 # Quoted val
 803                                         |
 804                                                 \[\[[^]]*\]\]   # Link target
 805                                         |
 806                                                 [\w-]+                  # Plain word
 807                                         )
 808                                 )*
 809                         )?
 810                         /x';
 811
 812                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 813                         foreach ( $matches as $bits ) {
 814                                 array_shift( $bits );
 815                                 $key = strtolower( array_shift( $bits ) );
 816                                 if ( count( $bits ) == 0 ) {
 817                                         $opts[$key] = true;
 818                                 } elseif ( count( $bits ) == 1 ) {
 819                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 820                                 } else {
 821                                         // Array!
 822                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 823                                 }
 824                         }
 825                 }
 826                 return $opts;
 827         }
 828
 829         protected function cleanupOption( $opt ) {
 830                 if ( substr( $opt, 0, 1 ) == '"' ) {
 831                         return substr( $opt, 1, -1 );
 832                 }
 833
 834                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 835                         return substr( $opt, 2, -2 );
 836                 }
 837                 return $opt;
 838         }
 839
 840         /**
 841          * Use a regex to find out the value of an option
 842          * @param $key String: name of option val to retrieve
 843          * @param $opts Options array to look in
 844          * @param $default Mixed: default value returned if not found
 845          */
 846         protected static function getOptionValue( $key, $opts, $default ) {
 847                 $key = strtolower( $key );
 848
 849                 if ( isset( $opts[$key] ) ) {
 850                         return $opts[$key];
 851                 } else {
 852                         return $default;
 853                 }
 854         }
 855 }