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'  => "$this->uploadDir/thumb",
 246                                                 'local-temp'   => "$this->uploadDir/temp",
 247                                         )
 248                                 ) )
 249                         ),
 250                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 251                         'wgStylePath' => '/skins',
 252                         'wgStyleSheetPath' => '/skins',
 253                         'wgSitename' => 'MediaWiki',
 254                         'wgLanguageCode' => $lang,
 255                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 256                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 257                         'wgLang' => null,
 258                         'wgContLang' => null,
 259                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 260                         'wgMaxTocLevel' => $maxtoclevel,
 261                         'wgCapitalLinks' => true,
 262                         'wgNoFollowLinks' => true,
 263                         'wgNoFollowDomainExceptions' => array(),
 264                         'wgThumbnailScriptPath' => false,
 265                         'wgUseImageResize' => false,
 266                         'wgUseTeX' => isset( $opts['math'] ),
 267                         'wgMathDirectory' => $this->uploadDir . '/math',
 268                         'wgLocaltimezone' => 'UTC',
 269                         'wgAllowExternalImages' => true,
 270                         'wgUseTidy' => false,
 271                         'wgDefaultLanguageVariant' => $variant,
 272                         'wgVariantArticlePath' => false,
 273                         'wgGroupPermissions' => array( '*' => array(
 274                                 'createaccount' => true,
 275                                 'read'          => true,
 276                                 'edit'          => true,
 277                                 'createpage'    => true,
 278                                 'createtalk'    => true,
 279                         ) ),
 280                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 281                         'wgDefaultExternalStore' => array(),
 282                         'wgForeignFileRepos' => array(),
 283                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 284                         'wgExperimentalHtmlIds' => false,
 285                         'wgExternalLinkTarget' => false,
 286                         'wgAlwaysUseTidy' => false,
 287                         'wgHtml5' => true,
 288                         'wgCleanupPresentationalAttributes' => true,
 289                         'wgWellFormedXml' => true,
 290                         'wgAllowMicrodataAttributes' => true,
 291                         'wgAdaptiveMessageCache' => true,
 292                         'wgUseDatabaseMessages' => true,
 293                 );
 294
 295                 if ( $config ) {
 296                         $configLines = explode( "\n", $config );
 297
 298                         foreach ( $configLines as $line ) {
 299                                 list( $var, $value ) = explode( '=', $line, 2 );
 300
 301                                 $settings[$var] = eval( "return $value;" ); //???
 302                         }
 303                 }
 304
 305                 $this->savedGlobals = array();
 306
 307                 foreach ( $settings as $var => $val ) {
 308                         if ( array_key_exists( $var, $GLOBALS ) ) {
 309                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 310                         }
 311
 312                         $GLOBALS[$var] = $val;
 313                 }
 314
 315                 $langObj = Language::factory( $lang );
 316                 $GLOBALS['wgContLang'] = $langObj;
 317                 $context = new RequestContext();
 318                 $GLOBALS['wgLang'] = $context->getLanguage();
 319
 320                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 321                 $GLOBALS['wgOut'] = $context->getOutput();
 322                 $GLOBALS['wgUser'] = $context->getUser();
 323
 324                 global $wgHooks;
 325
 326                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 327                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 328
 329                 MagicWord::clearCache();
 330                 RepoGroup::destroySingleton();
 331                 FileBackendGroup::destroySingleton();
 332
 333                 # Publish the articles after we have the final language set
 334                 $this->publishTestArticles();
 335
 336                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 337                 RepoGroup::destroySingleton();
 338                 FileBackendGroup::destroySingleton();
 339                 MessageCache::singleton()->destroyInstance();
 340
 341                 return $context;
 342         }
 343
 344         /**
 345          * Create a dummy uploads directory which will contain a couple
 346          * of files in order to pass existence tests.
 347          *
 348          * @return String: the directory
 349          */
 350         protected function setupUploadDir() {
 351                 global $IP;
 352
 353                 if ( $this->keepUploads ) {
 354                         $dir = wfTempDir() . '/mwParser-images';
 355
 356                         if ( is_dir( $dir ) ) {
 357                                 return $dir;
 358                         }
 359                 } else {
 360                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 361                 }
 362
 363                 // wfDebug( "Creating upload directory $dir\n" );
 364                 if ( file_exists( $dir ) ) {
 365                         wfDebug( "Already exists!\n" );
 366                         return $dir;
 367                 }
 368
 369                 wfMkdirParents( $dir . '/3/3a', null, __METHOD__ );
 370                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 371                 wfMkdirParents( $dir . '/0/09', null, __METHOD__ );
 372                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 373
 374                 return $dir;
 375         }
 376
 377         /**
 378          * Restore default values and perform any necessary clean-up
 379          * after each test runs.
 380          */
 381         protected function teardownGlobals() {
 382                 foreach ( $this->savedGlobals as $var => $val ) {
 383                         $GLOBALS[$var] = $val;
 384                 }
 385
 386                 RepoGroup::destroySingleton();
 387                 LinkCache::singleton()->clear();
 388
 389                 $this->teardownUploadDir( $this->uploadDir );
 390         }
 391
 392         /**
 393          * Remove the dummy uploads directory
 394          */
 395         private function teardownUploadDir( $dir ) {
 396                 if ( $this->keepUploads ) {
 397                         return;
 398                 }
 399
 400                 // delete the files first, then the dirs.
 401                 self::deleteFiles(
 402                         array (
 403                                 "$dir/3/3a/Foobar.jpg",
 404                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 405                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 406                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 407                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 408
 409                                 "$dir/0/09/Bad.jpg",
 410
 411                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 412                         )
 413                 );
 414
 415                 self::deleteDirs(
 416                         array (
 417                                 "$dir/3/3a",
 418                                 "$dir/3",
 419                                 "$dir/thumb/6/65",
 420                                 "$dir/thumb/6",
 421                                 "$dir/thumb/3/3a/Foobar.jpg",
 422                                 "$dir/thumb/3/3a",
 423                                 "$dir/thumb/3",
 424
 425                                 "$dir/0/09/",
 426                                 "$dir/0/",
 427                                 "$dir/thumb",
 428                                 "$dir/math/f/a/5",
 429                                 "$dir/math/f/a",
 430                                 "$dir/math/f",
 431                                 "$dir/math",
 432                                 "$dir",
 433                         )
 434                 );
 435         }
 436
 437         /**
 438          * Delete the specified files, if they exist.
 439          * @param $files Array: full paths to files to delete.
 440          */
 441         private static function deleteFiles( $files ) {
 442                 foreach ( $files as $file ) {
 443                         if ( file_exists( $file ) ) {
 444                                 unlink( $file );
 445                         }
 446                 }
 447         }
 448
 449         /**
 450          * Delete the specified directories, if they exist. Must be empty.
 451          * @param $dirs Array: full paths to directories to delete.
 452          */
 453         private static function deleteDirs( $dirs ) {
 454                 foreach ( $dirs as $dir ) {
 455                         if ( is_dir( $dir ) ) {
 456                                 rmdir( $dir );
 457                         }
 458                 }
 459         }
 460
 461         public function parserTestProvider() {
 462                 if ( $this->file === false ) {
 463                         global $wgParserTestFiles;
 464                         $this->file = $wgParserTestFiles[0];
 465                 }
 466                 return new TestFileIterator( $this->file, $this );
 467         }
 468
 469         /**
 470          * Set the file from whose tests will be run by this instance
 471          */
 472         public function setParserTestFile( $filename ) {
 473                 $this->file = $filename;
 474         }
 475
 476         /** @dataProvider parserTestProvider */
 477         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 478                 if ( !preg_match( '/' . $this->regex . '/', $desc ) ) return; //$this->markTestSkipped( 'Filtered out by the user' );
 479
 480                 wfDebug( "Running parser test: $desc\n" );
 481
 482                 $opts = $this->parseOptions( $opts );
 483                 $context = $this->setupGlobals( $opts, $config );
 484
 485                 $user = $context->getUser();
 486                 $options = ParserOptions::newFromContext( $context );
 487
 488                 if ( isset( $opts['title'] ) ) {
 489                         $titleText = $opts['title'];
 490                 }
 491                 else {
 492                         $titleText = 'Parser test';
 493                 }
 494
 495                 $local = isset( $opts['local'] );
 496                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 497                 $parser = $this->getParser( $preprocessor );
 498
 499                 $title = Title::newFromText( $titleText );
 500
 501                 if ( isset( $opts['pst'] ) ) {
 502                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 503                 } elseif ( isset( $opts['msg'] ) ) {
 504                         $out = $parser->transformMsg( $input, $options, $title );
 505                 } elseif ( isset( $opts['section'] ) ) {
 506                         $section = $opts['section'];
 507                         $out = $parser->getSection( $input, $section );
 508                 } elseif ( isset( $opts['replace'] ) ) {
 509                         $section = $opts['replace'][0];
 510                         $replace = $opts['replace'][1];
 511                         $out = $parser->replaceSection( $input, $section, $replace );
 512                 } elseif ( isset( $opts['comment'] ) ) {
 513                         $out = Linker::formatComment( $input, $title, $local );
 514                 } elseif ( isset( $opts['preload'] ) ) {
 515                         $out = $parser->getpreloadText( $input, $title, $options );
 516                 } else {
 517                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 518                         $out = $output->getText();
 519
 520                         if ( isset( $opts['showtitle'] ) ) {
 521                                 if ( $output->getTitleText() ) {
 522                                         $title = $output->getTitleText();
 523                                 }
 524
 525                                 $out = "$title\n$out";
 526                         }
 527
 528                         if ( isset( $opts['ill'] ) ) {
 529                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 530                         } elseif ( isset( $opts['cat'] ) ) {
 531                                 $outputPage = $context->getOutput();
 532                                 $outputPage->addCategoryLinks( $output->getCategories() );
 533                                 $cats = $outputPage->getCategoryLinks();
 534
 535                                 if ( isset( $cats['normal'] ) ) {
 536                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 537                                 } else {
 538                                         $out = '';
 539                                 }
 540                         }
 541                         $parser->mPreprocessor = null;
 542
 543                         $result = $this->tidy( $result );
 544                 }
 545
 546                 $this->teardownGlobals();
 547
 548                 $this->assertEquals( $result, $out, $desc );
 549         }
 550
 551         /**
 552          * Run a fuzz test series
 553          * Draw input from a set of test files
 554          *
 555          * @todo @fixme Needs some work to not eat memory until the world explodes
 556          *
 557          * @group Broken
 558          */
 559         function testFuzzTests() {
 560                 global $wgParserTestFiles;
 561
 562                 $files = $wgParserTestFiles;
 563
 564                 if( $this->getCliArg( 'file=' ) ) {
 565                         $files = array( $this->getCliArg( 'file=' ) );
 566                 }
 567
 568                 $dict = $this->getFuzzInput( $files );
 569                 $dictSize = strlen( $dict );
 570                 $logMaxLength = log( $this->maxFuzzTestLength );
 571
 572                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 573
 574                 $user = new User;
 575                 $opts = ParserOptions::newFromUser( $user );
 576                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 577
 578                 $id = 1;
 579
 580                 while ( true ) {
 581
 582                         // Generate test input
 583                         mt_srand( ++$this->fuzzSeed );
 584                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 585                         $input = '';
 586
 587                         while ( strlen( $input ) < $totalLength ) {
 588                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 589                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 590                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 591                                 $input .= substr( $dict, $offset, $hairLength );
 592                         }
 593
 594                         $this->setupGlobals();
 595                         $parser = $this->getParser();
 596
 597                         // Run the test
 598                         try {
 599                                 $parser->parse( $input, $title, $opts );
 600                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 601                         } catch ( Exception $exception ) {
 602                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 603
 604                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 605                         }
 606
 607                         $this->teardownGlobals();
 608                         $parser->__destruct();
 609
 610                         if ( $id % 100 == 0 ) {
 611                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 612                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 613                                 if ( $usage > 90 ) {
 614                                         $ret = "Out of memory:\n";
 615                                         $memStats = $this->getMemoryBreakdown();
 616
 617                                         foreach ( $memStats as $name => $usage ) {
 618                                                 $ret .= "$name: $usage\n";
 619                                         }
 620
 621                                         throw new MWException( $ret );
 622                                 }
 623                         }
 624
 625                         $id++;
 626
 627                 }
 628         }
 629
 630         //Various getter functions
 631
 632         /**
 633          * Get an input dictionary from a set of parser test files
 634          */
 635         function getFuzzInput( $filenames ) {
 636                 $dict = '';
 637
 638                 foreach ( $filenames as $filename ) {
 639                         $contents = file_get_contents( $filename );
 640                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 641
 642                         foreach ( $matches[1] as $match ) {
 643                                 $dict .= $match . "\n";
 644                         }
 645                 }
 646
 647                 return $dict;
 648         }
 649
 650         /**
 651          * Get a memory usage breakdown
 652          */
 653         function getMemoryBreakdown() {
 654                 $memStats = array();
 655
 656                 foreach ( $GLOBALS as $name => $value ) {
 657                         $memStats['$' . $name] = strlen( serialize( $value ) );
 658                 }
 659
 660                 $classes = get_declared_classes();
 661
 662                 foreach ( $classes as $class ) {
 663                         $rc = new ReflectionClass( $class );
 664                         $props = $rc->getStaticProperties();
 665                         $memStats[$class] = strlen( serialize( $props ) );
 666                         $methods = $rc->getMethods();
 667
 668                         foreach ( $methods as $method ) {
 669                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 670                         }
 671                 }
 672
 673                 $functions = get_defined_functions();
 674
 675                 foreach ( $functions['user'] as $function ) {
 676                         $rf = new ReflectionFunction( $function );
 677                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 678                 }
 679
 680                 asort( $memStats );
 681
 682                 return $memStats;
 683         }
 684
 685         /**
 686          * Get a Parser object
 687          */
 688         function getParser( $preprocessor = null ) {
 689                 global $wgParserConf;
 690
 691                 $class = $wgParserConf['class'];
 692                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 693
 694                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 695
 696                 return $parser;
 697         }
 698
 699         //Various action functions
 700
 701         public function addArticle( $name, $text, $line ) {
 702                 self::$articles[$name] = $text;
 703         }
 704
 705         public function publishTestArticles() {
 706                 if ( empty( self::$articles ) ) {
 707                         return;
 708                 }
 709
 710                 foreach ( self::$articles as $name => $text ) {
 711                         $title = Title::newFromText( $name );
 712
 713                         if ( $title->getArticleID( Title::GAID_FOR_UPDATE ) == 0 ) {
 714                                 ParserTest::addArticle( $name, $text );
 715                         }
 716                 }
 717         }
 718
 719         /**
 720          * Steal a callback function from the primary parser, save it for
 721          * application to our scary parser. If the hook is not installed,
 722          * abort processing of this file.
 723          *
 724          * @param $name String
 725          * @return Bool true if tag hook is present
 726          */
 727         public function requireHook( $name ) {
 728                 global $wgParser;
 729                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 730                 return isset( $wgParser->mTagHooks[$name] );
 731         }
 732
 733         public function requireFunctionHook( $name ) {
 734                 global $wgParser;
 735                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 736                 return isset( $wgParser->mFunctionHooks[$name] );
 737         }
 738         //Various "cleanup" functions
 739
 740         /**
 741          * Run the "tidy" command on text if the $wgUseTidy
 742          * global is true
 743          *
 744          * @param $text String: the text to tidy
 745          * @return String
 746          */
 747         protected function tidy( $text ) {
 748                 global $wgUseTidy;
 749
 750                 if ( $wgUseTidy ) {
 751                         $text = MWTidy::tidy( $text );
 752                 }
 753
 754                 return $text;
 755         }
 756
 757         /**
 758          * Remove last character if it is a newline
 759          */
 760         public function removeEndingNewline( $s ) {
 761                 if ( substr( $s, -1 ) === "\n" ) {
 762                         return substr( $s, 0, -1 );
 763                 }
 764                 else {
 765                         return $s;
 766                 }
 767         }
 768
 769         public function showRunFile( $file ) {
 770                 /* NOP */
 771         }
 772
 773         //Test options parser functions
 774
 775         protected function parseOptions( $instring ) {
 776                 $opts = array();
 777                 // foo
 778                 // foo=bar
 779                 // foo="bar baz"
 780                 // foo=[[bar baz]]
 781                 // foo=bar,"baz quux"
 782                 $regex = '/\b
 783                         ([\w-]+)                                                # Key
 784                         \b
 785                         (?:\s*
 786                                 =                                               # First sub-value
 787                                 \s*
 788                                 (
 789                                         "
 790                                                 [^"]*                   # Quoted val
 791                                         "
 792                                 |
 793                                         \[\[
 794                                                 [^]]*                   # Link target
 795                                         \]\]
 796                                 |
 797                                         [\w-]+                          # Plain word
 798                                 )
 799                                 (?:\s*
 800                                         ,                                       # Sub-vals 1..N
 801                                         \s*
 802                                         (
 803                                                 "[^"]*"                 # Quoted val
 804                                         |
 805                                                 \[\[[^]]*\]\]   # Link target
 806                                         |
 807                                                 [\w-]+                  # Plain word
 808                                         )
 809                                 )*
 810                         )?
 811                         /x';
 812
 813                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 814                         foreach ( $matches as $bits ) {
 815                                 array_shift( $bits );
 816                                 $key = strtolower( array_shift( $bits ) );
 817                                 if ( count( $bits ) == 0 ) {
 818                                         $opts[$key] = true;
 819                                 } elseif ( count( $bits ) == 1 ) {
 820                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 821                                 } else {
 822                                         // Array!
 823                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 824                                 }
 825                         }
 826                 }
 827                 return $opts;
 828         }
 829
 830         protected function cleanupOption( $opt ) {
 831                 if ( substr( $opt, 0, 1 ) == '"' ) {
 832                         return substr( $opt, 1, -1 );
 833                 }
 834
 835                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 836                         return substr( $opt, 2, -2 );
 837                 }
 838                 return $opt;
 839         }
 840
 841         /**
 842          * Use a regex to find out the value of an option
 843          * @param $key String: name of option val to retrieve
 844          * @param $opts Options array to look in
 845          * @param $default Mixed: default value returned if not found
 846          */
 847         protected static function getOptionValue( $key, $opts, $default ) {
 848                 $key = strtolower( $key );
 849
 850                 if ( isset( $opts[$key] ) ) {
 851                         return $opts[$key];
 852                 } else {
 853                         return $default;
 854                 }
 855         }
 856 }