tests/phpunit/includes/parser/NewParserTest.php

   1 <?php
   2
   3 /**
   4  * @group Database
   5  * @group Parser
   6  * @group Stub (can also work independently)
   7  */
   8 class NewParserTest extends MediaWikiTestCase {
   9
  10         static protected $articles = array();   // Array of test articles defined by the tests
  11         /* The dataProvider is run on a different instance than the test, so it must be static
  12          * When running tests from several files, all tests will see all articles.
  13          */
  14
  15         public $uploadDir;
  16         public $keepUploads = false;
  17         public $runDisabled = false;
  18         public $regex = '';
  19         public $showProgress = true;
  20         public $savedInitialGlobals = array();
  21         public $savedWeirdGlobals = array();
  22         public $savedGlobals = array();
  23         public $hooks = array();
  24         public $functionHooks = array();
  25
  26         //Fuzz test
  27         public $maxFuzzTestLength = 300;
  28         public $fuzzSeed = 0;
  29         public $memoryLimit = 50;
  30
  31         protected $file = false;
  32
  33         /*function __construct($a = null,$b = array(),$c = null ) {
  34                 parent::__construct($a,$b,$c);
  35         }*/
  36
  37         function setUp() {
  38                 global $wgContLang, $wgNamespaceProtection, $wgNamespaceAliases;
  39                 global $wgHooks, $IP;
  40                 $wgContLang = Language::factory( 'en' );
  41
  42                 //Setup CLI arguments
  43                 if ( $this->getCliArg( 'regex=' ) ) {
  44                         $this->regex = $this->getCliArg( 'regex=' );
  45                 } else {
  46                         # Matches anything
  47                         $this->regex = '';
  48                 }
  49
  50                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  51
  52                 $tmpGlobals = array();
  53
  54                 $tmpGlobals['wgScript'] = '/index.php';
  55                 $tmpGlobals['wgScriptPath'] = '/';
  56                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  57                 $tmpGlobals['wgStyleSheetPath'] = '/skins';
  58                 $tmpGlobals['wgStylePath'] = '/skins';
  59                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  60                 $tmpGlobals['wgLocalFileRepo'] = array(
  61                         'class' => 'LocalRepo',
  62                         'name' => 'local',
  63                         'directory' => wfTempDir() . '/test-repo',
  64                         'url' => 'http://example.com/images',
  65                         'deletedDir' => wfTempDir() . '/test-repo/delete',
  66                         'hashLevels' => 2,
  67                         'transformVia404' => false,
  68                 );
  69
  70                 $tmpGlobals['wgEnableParserCache'] = false;
  71                 $tmpGlobals['wgHooks'] = $wgHooks;
  72                 $tmpGlobals['wgDeferredUpdateList'] = array();
  73                 $tmpGlobals['wgMemc'] = wfGetMainCache();
  74                 $tmpGlobals['messageMemc'] = wfGetMessageCacheStorage();
  75                 $tmpGlobals['parserMemc'] = wfGetParserCacheStorage();
  76
  77                 // $tmpGlobals['wgContLang'] = new StubContLang;
  78                 $tmpGlobals['wgUser'] = new User;
  79                 $context = new RequestContext();
  80                 $tmpGlobals['wgLang'] = $context->lang;
  81                 $tmpGlobals['wgOut'] = $context->output;
  82                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
  83                 $tmpGlobals['wgRequest'] = new WebRequest;
  84
  85                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
  86                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
  87                 }
  88
  89
  90                 foreach ( $tmpGlobals as $var => $val ) {
  91                         if ( array_key_exists( $var, $GLOBALS ) ) {
  92                                 $this->savedInitialGlobals[$var] = $GLOBALS[$var];
  93                         }
  94
  95                         $GLOBALS[$var] = $val;
  96                 }
  97
  98                 $this->savedWeirdGlobals['mw_namespace_protection'] = $wgNamespaceProtection[NS_MEDIAWIKI];
  99                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
 100                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 101
 102                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 103                 $wgNamespaceAliases['Image'] = NS_FILE;
 104                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 105
 106         }
 107
 108         public function tearDown() {
 109
 110                 foreach ( $this->savedInitialGlobals as $var => $val ) {
 111                         $GLOBALS[$var] = $val;
 112                 }
 113
 114                 global $wgNamespaceProtection, $wgNamespaceAliases;
 115
 116                 $wgNamespaceProtection[NS_MEDIAWIKI] = $this->savedWeirdGlobals['mw_namespace_protection'];
 117                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 118                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 119         }
 120
 121         function addDBData() {
 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__,
 166                         /**
 167                          * @todo Fixme! Same as above!
 168                          */
 169                         array( 'IGNORE' )
 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                 $this->uploadDir = $this->setupUploadDir();
 179
 180                 $user = User::newFromId( 0 );
 181                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 182
 183                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 184                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', array(
 185                         'size'        => 12345,
 186                         'width'       => 1941,
 187                         'height'      => 220,
 188                         'bits'        => 24,
 189                         'media_type'  => MEDIATYPE_BITMAP,
 190                         'mime'        => 'image/jpeg',
 191                         'metadata'    => serialize( array() ),
 192                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 193                         'fileExists'  => true
 194                         ), $this->db->timestamp( '20010115123500' ), $user );
 195
 196                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 197                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 198                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', array(
 199                         'size'        => 12345,
 200                         'width'       => 320,
 201                         'height'      => 240,
 202                         'bits'        => 24,
 203                         'media_type'  => MEDIATYPE_BITMAP,
 204                         'mime'        => 'image/jpeg',
 205                         'metadata'    => serialize( array() ),
 206                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 207                         'fileExists'  => true
 208                         ), $this->db->timestamp( '20010115123500' ), $user );
 209
 210         }
 211
 212
 213
 214
 215         //ParserTest setup/teardown functions
 216
 217         /**
 218          * Set up the global variables for a consistent environment for each test.
 219          * Ideally this should replace the global configuration entirely.
 220          */
 221         protected function setupGlobals( $opts = '', $config = '' ) {
 222                 # Find out values for some special options.
 223                 $lang =
 224                         self::getOptionValue( 'language', $opts, 'en' );
 225                 $variant =
 226                         self::getOptionValue( 'variant', $opts, false );
 227                 $maxtoclevel =
 228                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 229                 $linkHolderBatchSize =
 230                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 231
 232                 $settings = array(
 233                         'wgServer' => 'http://Britney-Spears',
 234                         'wgScript' => '/index.php',
 235                         'wgScriptPath' => '/',
 236                         'wgArticlePath' => '/wiki/$1',
 237                         'wgActionPaths' => array(),
 238                         'wgLocalFileRepo' => array(
 239                                 'class' => 'LocalRepo',
 240                                 'name' => 'local',
 241                                 'directory' => $this->uploadDir,
 242                                 'url' => 'http://example.com/images',
 243                                 'hashLevels' => 2,
 244                                 'transformVia404' => false,
 245                         ),
 246                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 247                         'wgStylePath' => '/skins',
 248                         'wgStyleSheetPath' => '/skins',
 249                         'wgSitename' => 'MediaWiki',
 250                         'wgLanguageCode' => $lang,
 251                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 252                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 253                         'wgLang' => null,
 254                         'wgContLang' => null,
 255                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 256                         'wgMaxTocLevel' => $maxtoclevel,
 257                         'wgCapitalLinks' => true,
 258                         'wgNoFollowLinks' => true,
 259                         'wgNoFollowDomainExceptions' => array(),
 260                         'wgThumbnailScriptPath' => false,
 261                         'wgUseImageResize' => false,
 262                         'wgUseTeX' => isset( $opts['math'] ),
 263                         'wgMathDirectory' => $this->uploadDir . '/math',
 264                         'wgLocaltimezone' => 'UTC',
 265                         'wgAllowExternalImages' => true,
 266                         'wgUseTidy' => false,
 267                         'wgDefaultLanguageVariant' => $variant,
 268                         'wgVariantArticlePath' => false,
 269                         'wgGroupPermissions' => array( '*' => array(
 270                                 'createaccount' => true,
 271                                 'read'          => true,
 272                                 'edit'          => true,
 273                                 'createpage'    => true,
 274                                 'createtalk'    => true,
 275                         ) ),
 276                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 277                         'wgDefaultExternalStore' => array(),
 278                         'wgForeignFileRepos' => array(),
 279                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 280                         'wgExperimentalHtmlIds' => false,
 281                         'wgExternalLinkTarget' => false,
 282                         'wgAlwaysUseTidy' => false,
 283                         'wgHtml5' => true,
 284                         'wgWellFormedXml' => true,
 285                         'wgAllowMicrodataAttributes' => true,
 286                         'wgAdaptiveMessageCache' => true,
 287                         'wgUseDatabaseMessages' => true,
 288                 );
 289
 290                 if ( $config ) {
 291                         $configLines = explode( "\n", $config );
 292
 293                         foreach ( $configLines as $line ) {
 294                                 list( $var, $value ) = explode( '=', $line, 2 );
 295
 296                                 $settings[$var] = eval( "return $value;" ); //???
 297                         }
 298                 }
 299
 300                 $this->savedGlobals = array();
 301
 302                 foreach ( $settings as $var => $val ) {
 303                         if ( array_key_exists( $var, $GLOBALS ) ) {
 304                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 305                         }
 306
 307                         $GLOBALS[$var] = $val;
 308                 }
 309
 310                 $langObj = Language::factory( $lang );
 311                 $GLOBALS['wgContLang'] = $langObj;
 312                 $context = new RequestContext();
 313                 $GLOBALS['wgLang'] = $context->lang;
 314
 315                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 316                 $GLOBALS['wgOut'] = $context->output;
 317
 318                 global $wgHooks;
 319
 320                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 321                 $wgHooks['ParserTestParser'][] = 'ParserTestStaticParserHook::setup';
 322                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 323
 324                 MagicWord::clearCache();
 325
 326                 # Publish the articles after we have the final language set
 327                 $this->publishTestArticles();
 328
 329                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 330                 RepoGroup::destroySingleton();
 331                 MessageCache::singleton()->destroyInstance();
 332
 333                 global $wgUser;
 334                 $wgUser = new User();
 335         }
 336
 337         /**
 338          * Restore default values and perform any necessary clean-up
 339          * after each test runs.
 340          */
 341         protected function teardownGlobals() {
 342                 RepoGroup::destroySingleton();
 343                 LinkCache::singleton()->clear();
 344
 345                 foreach ( $this->savedGlobals as $var => $val ) {
 346                         $GLOBALS[$var] = $val;
 347                 }
 348         }
 349
 350         /**
 351          * Create a dummy uploads directory which will contain a couple
 352          * of files in order to pass existence tests.
 353          *
 354          * @return String: the directory
 355          */
 356         protected function setupUploadDir() {
 357                 global $IP;
 358
 359                 if ( $this->keepUploads ) {
 360                         $dir = wfTempDir() . '/mwParser-images';
 361
 362                         if ( is_dir( $dir ) ) {
 363                                 return $dir;
 364                         }
 365                 } else {
 366                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 367                 }
 368
 369                 // wfDebug( "Creating upload directory $dir\n" );
 370                 if ( file_exists( $dir ) ) {
 371                         wfDebug( "Already exists!\n" );
 372                         return $dir;
 373                 }
 374
 375                 wfMkdirParents( $dir . '/3/3a' );
 376                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 377                 wfMkdirParents( $dir . '/0/09' );
 378                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 379
 380                 return $dir;
 381         }
 382
 383         public function parserTestProvider() {
 384                 if ( $this->file === false ) {
 385                         global $wgParserTestFiles;
 386                         $this->file = $wgParserTestFiles[0];
 387                 }
 388                 return new TestFileIterator( $this->file, $this );
 389         }
 390
 391         /**
 392          * Set the file from whose tests will be run by this instance
 393          */
 394         public function setParserTestFile( $filename ) {
 395                 $this->file = $filename;
 396         }
 397
 398         /** @dataProvider parserTestProvider */
 399         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 400                 if ( !preg_match( '/' . $this->regex . '/', $desc ) ) return; //$this->markTestSkipped( 'Filtered out by the user' );
 401
 402                 wfDebug( "Running parser test: $desc\n" );
 403
 404                 $opts = $this->parseOptions( $opts );
 405                 $this->setupGlobals( $opts, $config );
 406
 407                 $user = new User();
 408                 $options = ParserOptions::newFromUser( $user );
 409
 410                 if ( isset( $opts['title'] ) ) {
 411                         $titleText = $opts['title'];
 412                 }
 413                 else {
 414                         $titleText = 'Parser test';
 415                 }
 416
 417                 $local = isset( $opts['local'] );
 418                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 419                 $parser = $this->getParser( $preprocessor );
 420
 421                 $title = Title::newFromText( $titleText );
 422
 423                 if ( isset( $opts['pst'] ) ) {
 424                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 425                 } elseif ( isset( $opts['msg'] ) ) {
 426                         $out = $parser->transformMsg( $input, $options );
 427                 } elseif ( isset( $opts['section'] ) ) {
 428                         $section = $opts['section'];
 429                         $out = $parser->getSection( $input, $section );
 430                 } elseif ( isset( $opts['replace'] ) ) {
 431                         $section = $opts['replace'][0];
 432                         $replace = $opts['replace'][1];
 433                         $out = $parser->replaceSection( $input, $section, $replace );
 434                 } elseif ( isset( $opts['comment'] ) ) {
 435                         $linker = $user->getSkin();
 436                         $out = $linker->formatComment( $input, $title, $local );
 437                 } elseif ( isset( $opts['preload'] ) ) {
 438                         $out = $parser->getpreloadText( $input, $title, $options );
 439                 } else {
 440                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 441                         $out = $output->getText();
 442
 443                         if ( isset( $opts['showtitle'] ) ) {
 444                                 if ( $output->getTitleText() ) {
 445                                         $title = $output->getTitleText();
 446                                 }
 447
 448                                 $out = "$title\n$out";
 449                         }
 450
 451                         if ( isset( $opts['ill'] ) ) {
 452                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 453                         } elseif ( isset( $opts['cat'] ) ) {
 454                                 global $wgOut;
 455
 456                                 $wgOut->addCategoryLinks( $output->getCategories() );
 457                                 $cats = $wgOut->getCategoryLinks();
 458
 459                                 if ( isset( $cats['normal'] ) ) {
 460                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 461                                 } else {
 462                                         $out = '';
 463                                 }
 464                         }
 465                         $parser->mPreprocessor = null;
 466
 467                         $result = $this->tidy( $result );
 468                 }
 469
 470                 $this->teardownGlobals();
 471
 472                 $this->assertEquals( $result, $out, $desc );
 473         }
 474
 475         /**
 476          * Run a fuzz test series
 477          * Draw input from a set of test files
 478          */
 479         function testFuzzTests() {
 480
 481                 $this->markTestIncomplete( 'Breaks tesla due to memory restrictions' );
 482
 483                 global $wgParserTestFiles;
 484
 485                 $files = $wgParserTestFiles;
 486
 487                 if( $this->getCliArg( 'file=' ) ) {
 488                         $files = array( $this->getCliArg( 'file=' ) );
 489                 }
 490
 491                 $dict = $this->getFuzzInput( $files );
 492                 $dictSize = strlen( $dict );
 493                 $logMaxLength = log( $this->maxFuzzTestLength );
 494
 495                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 496
 497                 $user = new User;
 498                 $opts = ParserOptions::newFromUser( $user );
 499                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 500
 501                 $id = 1;
 502
 503                 while ( true ) {
 504
 505                         // Generate test input
 506                         mt_srand( ++$this->fuzzSeed );
 507                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 508                         $input = '';
 509
 510                         while ( strlen( $input ) < $totalLength ) {
 511                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 512                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 513                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 514                                 $input .= substr( $dict, $offset, $hairLength );
 515                         }
 516
 517                         $this->setupGlobals();
 518                         $parser = $this->getParser();
 519
 520                         // Run the test
 521                         try {
 522                                 $parser->parse( $input, $title, $opts );
 523                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 524                         } catch ( Exception $exception ) {
 525                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 526
 527                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 528                         }
 529
 530                         $this->teardownGlobals();
 531                         $parser->__destruct();
 532
 533                         if ( $id % 100 == 0 ) {
 534                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 535                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 536                                 if ( $usage > 90 ) {
 537                                         $ret = "Out of memory:\n";
 538                                         $memStats = $this->getMemoryBreakdown();
 539
 540                                         foreach ( $memStats as $name => $usage ) {
 541                                                 $ret .= "$name: $usage\n";
 542                                         }
 543
 544                                         throw new MWException( $ret );
 545                                 }
 546                         }
 547
 548                         $id++;
 549
 550                 }
 551         }
 552
 553         //Various getter functions
 554
 555         /**
 556          * Get an input dictionary from a set of parser test files
 557          */
 558         function getFuzzInput( $filenames ) {
 559                 $dict = '';
 560
 561                 foreach ( $filenames as $filename ) {
 562                         $contents = file_get_contents( $filename );
 563                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 564
 565                         foreach ( $matches[1] as $match ) {
 566                                 $dict .= $match . "\n";
 567                         }
 568                 }
 569
 570                 return $dict;
 571         }
 572
 573         /**
 574          * Get a memory usage breakdown
 575          */
 576         function getMemoryBreakdown() {
 577                 $memStats = array();
 578
 579                 foreach ( $GLOBALS as $name => $value ) {
 580                         $memStats['$' . $name] = strlen( serialize( $value ) );
 581                 }
 582
 583                 $classes = get_declared_classes();
 584
 585                 foreach ( $classes as $class ) {
 586                         $rc = new ReflectionClass( $class );
 587                         $props = $rc->getStaticProperties();
 588                         $memStats[$class] = strlen( serialize( $props ) );
 589                         $methods = $rc->getMethods();
 590
 591                         foreach ( $methods as $method ) {
 592                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 593                         }
 594                 }
 595
 596                 $functions = get_defined_functions();
 597
 598                 foreach ( $functions['user'] as $function ) {
 599                         $rf = new ReflectionFunction( $function );
 600                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 601                 }
 602
 603                 asort( $memStats );
 604
 605                 return $memStats;
 606         }
 607
 608         /**
 609          * Get a Parser object
 610          */
 611         function getParser( $preprocessor = null ) {
 612                 global $wgParserConf;
 613
 614                 $class = $wgParserConf['class'];
 615                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 616
 617                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 618
 619                 return $parser;
 620         }
 621
 622         //Various action functions
 623
 624         public function addArticle( $name, $text, $line ) {
 625                 self::$articles[$name] = $text;
 626         }
 627
 628         public function publishTestArticles() {
 629                 if ( empty( self::$articles ) ) {
 630                         return;
 631                 }
 632
 633                 foreach ( self::$articles as $name => $text ) {
 634                         $title = Title::newFromText( $name );
 635
 636                         if ( $title->getArticleID( Title::GAID_FOR_UPDATE ) == 0 ) {
 637                                 ParserTest::addArticle( $name, $text );
 638                         }
 639                 }
 640         }
 641
 642         /**
 643          * Steal a callback function from the primary parser, save it for
 644          * application to our scary parser. If the hook is not installed,
 645          * abort processing of this file.
 646          *
 647          * @param $name String
 648          * @return Bool true if tag hook is present
 649          */
 650         public function requireHook( $name ) {
 651                 global $wgParser;
 652                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 653                 return isset( $wgParser->mTagHooks[$name] );
 654         }
 655
 656         public function requireFunctionHook( $name ) {
 657                 global $wgParser;
 658                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 659                 return isset( $wgParser->mFunctionHooks[$name] );
 660         }
 661         //Various "cleanup" functions
 662
 663         /*
 664          * Run the "tidy" command on text if the $wgUseTidy
 665          * global is true
 666          *
 667          * @param $text String: the text to tidy
 668          * @return String
 669          * @static
 670          */
 671         protected function tidy( $text ) {
 672                 global $wgUseTidy;
 673
 674                 if ( $wgUseTidy ) {
 675                         $text = MWTidy::tidy( $text );
 676                 }
 677
 678                 return $text;
 679         }
 680
 681         /**
 682          * Remove last character if it is a newline
 683          */
 684         public function removeEndingNewline( $s ) {
 685                 if ( substr( $s, -1 ) === "\n" ) {
 686                         return substr( $s, 0, -1 );
 687                 }
 688                 else {
 689                         return $s;
 690                 }
 691         }
 692
 693         public function showRunFile( $file ) {
 694                 /* NOP */
 695         }
 696
 697         //Test options parser functions
 698
 699         protected function parseOptions( $instring ) {
 700                 $opts = array();
 701                 // foo
 702                 // foo=bar
 703                 // foo="bar baz"
 704                 // foo=[[bar baz]]
 705                 // foo=bar,"baz quux"
 706                 $regex = '/\b
 707                         ([\w-]+)                                                # Key
 708                         \b
 709                         (?:\s*
 710                                 =                                               # First sub-value
 711                                 \s*
 712                                 (
 713                                         "
 714                                                 [^"]*                   # Quoted val
 715                                         "
 716                                 |
 717                                         \[\[
 718                                                 [^]]*                   # Link target
 719                                         \]\]
 720                                 |
 721                                         [\w-]+                          # Plain word
 722                                 )
 723                                 (?:\s*
 724                                         ,                                       # Sub-vals 1..N
 725                                         \s*
 726                                         (
 727                                                 "[^"]*"                 # Quoted val
 728                                         |
 729                                                 \[\[[^]]*\]\]   # Link target
 730                                         |
 731                                                 [\w-]+                  # Plain word
 732                                         )
 733                                 )*
 734                         )?
 735                         /x';
 736
 737                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 738                         foreach ( $matches as $bits ) {
 739                                 array_shift( $bits );
 740                                 $key = strtolower( array_shift( $bits ) );
 741                                 if ( count( $bits ) == 0 ) {
 742                                         $opts[$key] = true;
 743                                 } elseif ( count( $bits ) == 1 ) {
 744                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 745                                 } else {
 746                                         // Array!
 747                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 748                                 }
 749                         }
 750                 }
 751                 return $opts;
 752         }
 753
 754         protected function cleanupOption( $opt ) {
 755                 if ( substr( $opt, 0, 1 ) == '"' ) {
 756                         return substr( $opt, 1, -1 );
 757                 }
 758
 759                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 760                         return substr( $opt, 2, -2 );
 761                 }
 762                 return $opt;
 763         }
 764
 765         /**
 766          * Use a regex to find out the value of an option
 767          * @param $key String: name of option val to retrieve
 768          * @param $opts Options array to look in
 769          * @param $default Mixed: default value returned if not found
 770          */
 771         protected static function getOptionValue( $key, $opts, $default ) {
 772                 $key = strtolower( $key );
 773
 774                 if ( isset( $opts[$key] ) ) {
 775                         return $opts[$key];
 776                 } else {
 777                         return $default;
 778                 }
 779         }
 780 }