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