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, $wgLanguageCode;
  36                 global $wgNamespaceProtection, $wgNamespaceAliases;
  37                 global $wgHooks, $IP;
  38
  39                 $wgLanguageCode = 'en';
  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                         'url'             => 'http://example.com/images',
  64                         'hashLevels'      => 2,
  65                         'transformVia404' => false,
  66                         'backend'         => 'local-backend'
  67                 );
  68                 $tmpGlobals['wgForeignFileRepos'] = array();
  69                 $tmpGlobals['wgEnableParserCache'] = false;
  70                 $tmpGlobals['wgHooks'] = $wgHooks;
  71                 $tmpGlobals['wgDeferredUpdateList'] = array();
  72                 $tmpGlobals['wgMemc'] = wfGetMainCache();
  73                 $tmpGlobals['messageMemc'] = wfGetMessageCacheStorage();
  74                 $tmpGlobals['parserMemc'] = wfGetParserCacheStorage();
  75
  76                 // $tmpGlobals['wgContLang'] = new StubContLang;
  77                 $tmpGlobals['wgUser'] = new User;
  78                 $context = new RequestContext();
  79                 $tmpGlobals['wgLang'] = $context->getLanguage();
  80                 $tmpGlobals['wgOut'] = $context->getOutput();
  81                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
  82                 $tmpGlobals['wgRequest'] = $context->getRequest();
  83
  84                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
  85                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
  86                 }
  87
  88
  89                 foreach ( $tmpGlobals as $var => $val ) {
  90                         if ( array_key_exists( $var, $GLOBALS ) ) {
  91                                 $this->savedInitialGlobals[$var] = $GLOBALS[$var];
  92                         }
  93
  94                         $GLOBALS[$var] = $val;
  95                 }
  96
  97                 $this->savedWeirdGlobals['mw_namespace_protection'] = $wgNamespaceProtection[NS_MEDIAWIKI];
  98                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
  99                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 100
 101                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 102                 $wgNamespaceAliases['Image'] = NS_FILE;
 103                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 104         }
 105
 106         protected function tearDown() {
 107                 foreach ( $this->savedInitialGlobals as $var => $val ) {
 108                         $GLOBALS[$var] = $val;
 109                 }
 110
 111                 global $wgNamespaceProtection, $wgNamespaceAliases;
 112
 113                 $wgNamespaceProtection[NS_MEDIAWIKI] = $this->savedWeirdGlobals['mw_namespace_protection'];
 114                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 115                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 116
 117                 // Restore backends
 118                 RepoGroup::destroySingleton();
 119                 FileBackendGroup::destroySingleton();
 120         }
 121
 122         function addDBData() {
 123                 $this->tablesUsed[] = 'site_stats';
 124                 $this->tablesUsed[] = 'interwiki';
 125                 # disabled for performance
 126                 #$this->tablesUsed[] = 'image';
 127
 128                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 129                 # for testing inter-language links
 130                 $this->db->insert( 'interwiki', array(
 131                         array( 'iw_prefix' => 'wikipedia',
 132                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 133                                    'iw_api'    => '',
 134                                    'iw_wikiid' => '',
 135                                    'iw_local'  => 0 ),
 136                         array( 'iw_prefix' => 'meatball',
 137                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 138                                    'iw_api'    => '',
 139                                    'iw_wikiid' => '',
 140                                    'iw_local'  => 0 ),
 141                         array( 'iw_prefix' => 'zh',
 142                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 143                                    'iw_api'    => '',
 144                                    'iw_wikiid' => '',
 145                                    'iw_local'  => 1 ),
 146                         array( 'iw_prefix' => 'es',
 147                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 148                                    'iw_api'    => '',
 149                                    'iw_wikiid' => '',
 150                                    'iw_local'  => 1 ),
 151                         array( 'iw_prefix' => 'fr',
 152                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 153                                    'iw_api'    => '',
 154                                    'iw_wikiid' => '',
 155                                    'iw_local'  => 1 ),
 156                         array( 'iw_prefix' => 'ru',
 157                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 158                                    'iw_api'    => '',
 159                                    'iw_wikiid' => '',
 160                                    'iw_local'  => 1 ),
 161                         /**
 162                          * @todo Fixme! Why are we inserting duplicate data here? Shouldn't
 163                          * need this IGNORE or shouldn't need the insert at all.
 164                          */
 165                         ), __METHOD__, array( 'IGNORE' )
 166                 );
 167
 168
 169                 # Update certain things in site_stats
 170                 $this->db->insert( 'site_stats',
 171                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 172                         __METHOD__
 173                 );
 174
 175                 # Reinitialise the LocalisationCache to match the database state
 176                 Language::getLocalisationCache()->unloadAll();
 177
 178                 # Clear the message cache
 179                 MessageCache::singleton()->clear();
 180
 181                 $user = User::newFromId( 0 );
 182                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 183
 184                 # Upload DB table entries for files.
 185                 # We will upload the actual files later. Note that if anything causes LocalFile::load()
 186                 # to be triggered before then, it will break via maybeUpgrade() setting the fileExists
 187                 # member to false and storing it in cache.
 188                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 189                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 190                         $image->recordUpload2(
 191                                 '', // archive name
 192                                 'Upload of some lame file',
 193                                 'Some lame file',
 194                                 array(
 195                                         'size'        => 12345,
 196                                         'width'       => 1941,
 197                                         'height'      => 220,
 198                                         'bits'        => 24,
 199                                         'media_type'  => MEDIATYPE_BITMAP,
 200                                         'mime'        => 'image/jpeg',
 201                                         'metadata'    => serialize( array() ),
 202                                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 203                                         'fileExists'  => true ),
 204                                 $this->db->timestamp( '20010115123500' ), $user
 205                         );
 206                 }
 207
 208                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 209                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 210                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 211                         $image->recordUpload2(
 212                                 '', // archive name
 213                                 'zomgnotcensored',
 214                                 'Borderline image',
 215                                 array(
 216                                         'size'        => 12345,
 217                                         'width'       => 320,
 218                                         'height'      => 240,
 219                                         'bits'        => 24,
 220                                         'media_type'  => MEDIATYPE_BITMAP,
 221                                         'mime'        => 'image/jpeg',
 222                                         'metadata'    => serialize( array() ),
 223                                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 224                                         'fileExists'  => true ),
 225                                 $this->db->timestamp( '20010115123500' ), $user
 226                         );
 227                 }
 228         }
 229
 230
 231
 232
 233         //ParserTest setup/teardown functions
 234
 235         /**
 236          * Set up the global variables for a consistent environment for each test.
 237          * Ideally this should replace the global configuration entirely.
 238          */
 239         protected function setupGlobals( $opts = '', $config = '' ) {
 240                 global $wgFileBackends;
 241                 # Find out values for some special options.
 242                 $lang =
 243                         self::getOptionValue( 'language', $opts, 'en' );
 244                 $variant =
 245                         self::getOptionValue( 'variant', $opts, false );
 246                 $maxtoclevel =
 247                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 248                 $linkHolderBatchSize =
 249                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 250
 251                 $uploadDir = $this->getUploadDir();
 252                 if ( $this->getCliArg( 'use-filebackend=' ) ) {
 253                         if ( self::$backendToUse ) {
 254                                 $backend = self::$backendToUse;
 255                         } else {
 256                                 $name = $this->getCliArg( 'use-filebackend=' );
 257                                 $useConfig = array();
 258                                 foreach ( $wgFileBackends as $conf ) {
 259                                         if ( $conf['name'] == $name ) {
 260                                                 $useConfig = $conf;
 261                                         }
 262                                 }
 263                                 $useConfig['name'] = 'local-backend'; // swap name
 264                                 $class = $conf['class'];
 265                                 self::$backendToUse = new $class( $useConfig );
 266                                 $backend = self::$backendToUse;
 267                         }
 268                 } else {
 269                         $backend = new FSFileBackend( array(
 270                                 'name'        => 'local-backend',
 271                                 'lockManager' => 'nullLockManager',
 272                                 'containerPaths' => array(
 273                                         'local-public' => "$uploadDir",
 274                                         'local-thumb'  => "$uploadDir/thumb",
 275                                 )
 276                         ) );
 277                 }
 278
 279                 $settings = array(
 280                         'wgServer' => 'http://Britney-Spears',
 281                         'wgScript' => '/index.php',
 282                         'wgScriptPath' => '/',
 283                         'wgArticlePath' => '/wiki/$1',
 284                         'wgExtensionAssetsPath' => '/extensions',
 285                         'wgActionPaths' => array(),
 286                         'wgLocalFileRepo' => array(
 287                                 'class'           => 'LocalRepo',
 288                                 'name'            => 'local',
 289                                 'url'             => 'http://example.com/images',
 290                                 'hashLevels'      => 2,
 291                                 'transformVia404' => false,
 292                                 'backend'         => $backend
 293                         ),
 294                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 295                         'wgStylePath' => '/skins',
 296                         'wgStyleSheetPath' => '/skins',
 297                         'wgSitename' => 'MediaWiki',
 298                         'wgLanguageCode' => $lang,
 299                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 300                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 301                         'wgLang' => null,
 302                         'wgContLang' => null,
 303                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 304                         'wgMaxTocLevel' => $maxtoclevel,
 305                         'wgCapitalLinks' => true,
 306                         'wgNoFollowLinks' => true,
 307                         'wgNoFollowDomainExceptions' => array(),
 308                         'wgThumbnailScriptPath' => false,
 309                         'wgUseImageResize' => true,
 310                         'wgUseTeX' => isset( $opts['math'] ),
 311                         'wgMathDirectory' => $uploadDir . '/math',
 312                         'wgLocaltimezone' => 'UTC',
 313                         'wgAllowExternalImages' => true,
 314                         'wgUseTidy' => false,
 315                         'wgDefaultLanguageVariant' => $variant,
 316                         'wgVariantArticlePath' => false,
 317                         'wgGroupPermissions' => array( '*' => array(
 318                                 'createaccount' => true,
 319                                 'read'          => true,
 320                                 'edit'          => true,
 321                                 'createpage'    => true,
 322                                 'createtalk'    => true,
 323                         ) ),
 324                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 325                         'wgDefaultExternalStore' => array(),
 326                         'wgForeignFileRepos' => array(),
 327                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 328                         'wgExperimentalHtmlIds' => false,
 329                         'wgExternalLinkTarget' => false,
 330                         'wgAlwaysUseTidy' => false,
 331                         'wgHtml5' => true,
 332                         'wgWellFormedXml' => true,
 333                         'wgAllowMicrodataAttributes' => true,
 334                         'wgAdaptiveMessageCache' => true,
 335                         'wgUseDatabaseMessages' => true,
 336                 );
 337
 338                 if ( $config ) {
 339                         $configLines = explode( "\n", $config );
 340
 341                         foreach ( $configLines as $line ) {
 342                                 list( $var, $value ) = explode( '=', $line, 2 );
 343
 344                                 $settings[$var] = eval( "return $value;" ); //???
 345                         }
 346                 }
 347
 348                 $this->savedGlobals = array();
 349
 350                 /** @since 1.20 */
 351                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 352
 353                 foreach ( $settings as $var => $val ) {
 354                         if ( array_key_exists( $var, $GLOBALS ) ) {
 355                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 356                         }
 357
 358                         $GLOBALS[$var] = $val;
 359                 }
 360
 361                 $langObj = Language::factory( $lang );
 362                 $GLOBALS['wgContLang'] = $langObj;
 363                 $context = new RequestContext();
 364                 $GLOBALS['wgLang'] = $context->getLanguage();
 365
 366                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 367                 $GLOBALS['wgOut'] = $context->getOutput();
 368                 $GLOBALS['wgUser'] = $context->getUser();
 369
 370                 global $wgHooks;
 371
 372                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 373                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 374
 375                 MagicWord::clearCache();
 376                 RepoGroup::destroySingleton();
 377                 FileBackendGroup::destroySingleton();
 378
 379                 # Create dummy files in storage
 380                 $this->setupUploads();
 381
 382                 # Publish the articles after we have the final language set
 383                 $this->publishTestArticles();
 384
 385                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 386                 RepoGroup::destroySingleton();
 387                 FileBackendGroup::destroySingleton();
 388                 MessageCache::destroyInstance();
 389
 390                 return $context;
 391         }
 392
 393         /**
 394          * Get an FS upload directory (only applies to FSFileBackend)
 395          *
 396          * @return String: the directory
 397          */
 398         protected function getUploadDir() {
 399                 if ( $this->keepUploads ) {
 400                         $dir = wfTempDir() . '/mwParser-images';
 401
 402                         if ( is_dir( $dir ) ) {
 403                                 return $dir;
 404                         }
 405                 } else {
 406                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 407                 }
 408
 409                 // wfDebug( "Creating upload directory $dir\n" );
 410                 if ( file_exists( $dir ) ) {
 411                         wfDebug( "Already exists!\n" );
 412                         return $dir;
 413                 }
 414
 415                 return $dir;
 416         }
 417
 418         /**
 419          * Create a dummy uploads directory which will contain a couple
 420          * of files in order to pass existence tests.
 421          *
 422          * @return String: the directory
 423          */
 424         protected function setupUploads() {
 425                 global $IP;
 426
 427                 $base = $this->getBaseDir();
 428                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 429                 $backend->prepare( array( 'dir' => "$base/local-public/3/3a" ) );
 430                 $backend->store( array(
 431                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/3/3a/Foobar.jpg"
 432                 ) );
 433                 $backend->prepare( array( 'dir' => "$base/local-public/0/09" ) );
 434                 $backend->store( array(
 435                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/0/09/Bad.jpg"
 436                 ) );
 437         }
 438
 439         /**
 440          * Restore default values and perform any necessary clean-up
 441          * after each test runs.
 442          */
 443         protected function teardownGlobals() {
 444                 $this->teardownUploads();
 445
 446                 foreach ( $this->savedGlobals as $var => $val ) {
 447                         $GLOBALS[$var] = $val;
 448                 }
 449
 450                 RepoGroup::destroySingleton();
 451                 LinkCache::singleton()->clear();
 452         }
 453
 454         /**
 455          * Remove the dummy uploads directory
 456          */
 457         private function teardownUploads() {
 458                 if ( $this->keepUploads ) {
 459                         return;
 460                 }
 461
 462                 $base = $this->getBaseDir();
 463                 // delete the files first, then the dirs.
 464                 self::deleteFiles(
 465                         array (
 466                                 "$base/local-public/3/3a/Foobar.jpg",
 467                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 468                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 469                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 470                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 471                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 472                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 473                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 474                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 475                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 476                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 477                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 478                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 479                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 480                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 481
 482                                 "$base/local-public/0/09/Bad.jpg",
 483                                 "$base/local-thumb/0/09/Bad.jpg",
 484
 485                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 486                         )
 487                 );
 488         }
 489
 490         /**
 491          * Delete the specified files, if they exist.
 492          * @param $files Array: full paths to files to delete.
 493          */
 494         private static function deleteFiles( $files ) {
 495                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 496                 foreach ( $files as $file ) {
 497                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 498                 }
 499                 foreach ( $files as $file ) {
 500                         $tmp = $file;
 501                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 502                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 503                                         break;
 504                                 }
 505                         }
 506                 }
 507         }
 508
 509         protected function getBaseDir() {
 510                 return 'mwstore://local-backend';
 511         }
 512
 513         public function parserTestProvider() {
 514                 if ( $this->file === false ) {
 515                         global $wgParserTestFiles;
 516                         $this->file = $wgParserTestFiles[0];
 517                 }
 518                 return new TestFileIterator( $this->file, $this );
 519         }
 520
 521         /**
 522          * Set the file from whose tests will be run by this instance
 523          */
 524         public function setParserTestFile( $filename ) {
 525                 $this->file = $filename;
 526         }
 527
 528         /**
 529          * @group medium
 530          * @dataProvider parserTestProvider
 531          */
 532         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 533                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 534                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 535                         //$this->markTestSkipped( 'Filtered out by the user' );
 536                         return;
 537                 }
 538
 539                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 540                         // parser tests frequently assume that the main namespace contains wikitext.
 541                         // @todo: When setting up pages, force the content model. Only skip if
 542                         //        $wgtContentModelUseDB is false.
 543                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 544                                         . "skipping parser test: $desc" );
 545                 }
 546
 547                 wfDebug( "Running parser test: $desc\n" );
 548
 549                 $opts = $this->parseOptions( $opts );
 550                 $context = $this->setupGlobals( $opts, $config );
 551
 552                 $user = $context->getUser();
 553                 $options = ParserOptions::newFromContext( $context );
 554
 555                 if ( isset( $opts['title'] ) ) {
 556                         $titleText = $opts['title'];
 557                 }
 558                 else {
 559                         $titleText = 'Parser test';
 560                 }
 561
 562                 $local = isset( $opts['local'] );
 563                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 564                 $parser = $this->getParser( $preprocessor );
 565
 566                 $title = Title::newFromText( $titleText );
 567
 568                 if ( isset( $opts['pst'] ) ) {
 569                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 570                 } elseif ( isset( $opts['msg'] ) ) {
 571                         $out = $parser->transformMsg( $input, $options, $title );
 572                 } elseif ( isset( $opts['section'] ) ) {
 573                         $section = $opts['section'];
 574                         $out = $parser->getSection( $input, $section );
 575                 } elseif ( isset( $opts['replace'] ) ) {
 576                         $section = $opts['replace'][0];
 577                         $replace = $opts['replace'][1];
 578                         $out = $parser->replaceSection( $input, $section, $replace );
 579                 } elseif ( isset( $opts['comment'] ) ) {
 580                         $out = Linker::formatComment( $input, $title, $local );
 581                 } elseif ( isset( $opts['preload'] ) ) {
 582                         $out = $parser->getpreloadText( $input, $title, $options );
 583                 } else {
 584                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 585                         $out = $output->getText();
 586
 587                         if ( isset( $opts['showtitle'] ) ) {
 588                                 if ( $output->getTitleText() ) {
 589                                         $title = $output->getTitleText();
 590                                 }
 591
 592                                 $out = "$title\n$out";
 593                         }
 594
 595                         if ( isset( $opts['ill'] ) ) {
 596                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 597                         } elseif ( isset( $opts['cat'] ) ) {
 598                                 $outputPage = $context->getOutput();
 599                                 $outputPage->addCategoryLinks( $output->getCategories() );
 600                                 $cats = $outputPage->getCategoryLinks();
 601
 602                                 if ( isset( $cats['normal'] ) ) {
 603                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 604                                 } else {
 605                                         $out = '';
 606                                 }
 607                         }
 608                         $parser->mPreprocessor = null;
 609
 610                         $result = $this->tidy( $result );
 611                 }
 612
 613                 $this->teardownGlobals();
 614
 615                 $this->assertEquals( $result, $out, $desc );
 616         }
 617
 618         /**
 619          * Run a fuzz test series
 620          * Draw input from a set of test files
 621          *
 622          * @todo fixme Needs some work to not eat memory until the world explodes
 623          *
 624          * @group ParserFuzz
 625          */
 626         function testFuzzTests() {
 627                 global $wgParserTestFiles;
 628
 629                 $files = $wgParserTestFiles;
 630
 631                 if( $this->getCliArg( 'file=' ) ) {
 632                         $files = array( $this->getCliArg( 'file=' ) );
 633                 }
 634
 635                 $dict = $this->getFuzzInput( $files );
 636                 $dictSize = strlen( $dict );
 637                 $logMaxLength = log( $this->maxFuzzTestLength );
 638
 639                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 640
 641                 $user = new User;
 642                 $opts = ParserOptions::newFromUser( $user );
 643                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 644
 645                 $id = 1;
 646
 647                 while ( true ) {
 648
 649                         // Generate test input
 650                         mt_srand( ++$this->fuzzSeed );
 651                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 652                         $input = '';
 653
 654                         while ( strlen( $input ) < $totalLength ) {
 655                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 656                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 657                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 658                                 $input .= substr( $dict, $offset, $hairLength );
 659                         }
 660
 661                         $this->setupGlobals();
 662                         $parser = $this->getParser();
 663
 664                         // Run the test
 665                         try {
 666                                 $parser->parse( $input, $title, $opts );
 667                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 668                         } catch ( Exception $exception ) {
 669                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 670
 671                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 672                         }
 673
 674                         $this->teardownGlobals();
 675                         $parser->__destruct();
 676
 677                         if ( $id % 100 == 0 ) {
 678                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 679                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 680                                 if ( $usage > 90 ) {
 681                                         $ret = "Out of memory:\n";
 682                                         $memStats = $this->getMemoryBreakdown();
 683
 684                                         foreach ( $memStats as $name => $usage ) {
 685                                                 $ret .= "$name: $usage\n";
 686                                         }
 687
 688                                         throw new MWException( $ret );
 689                                 }
 690                         }
 691
 692                         $id++;
 693
 694                 }
 695         }
 696
 697         //Various getter functions
 698
 699         /**
 700          * Get an input dictionary from a set of parser test files
 701          */
 702         function getFuzzInput( $filenames ) {
 703                 $dict = '';
 704
 705                 foreach ( $filenames as $filename ) {
 706                         $contents = file_get_contents( $filename );
 707                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 708
 709                         foreach ( $matches[1] as $match ) {
 710                                 $dict .= $match . "\n";
 711                         }
 712                 }
 713
 714                 return $dict;
 715         }
 716
 717         /**
 718          * Get a memory usage breakdown
 719          */
 720         function getMemoryBreakdown() {
 721                 $memStats = array();
 722
 723                 foreach ( $GLOBALS as $name => $value ) {
 724                         $memStats['$' . $name] = strlen( serialize( $value ) );
 725                 }
 726
 727                 $classes = get_declared_classes();
 728
 729                 foreach ( $classes as $class ) {
 730                         $rc = new ReflectionClass( $class );
 731                         $props = $rc->getStaticProperties();
 732                         $memStats[$class] = strlen( serialize( $props ) );
 733                         $methods = $rc->getMethods();
 734
 735                         foreach ( $methods as $method ) {
 736                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 737                         }
 738                 }
 739
 740                 $functions = get_defined_functions();
 741
 742                 foreach ( $functions['user'] as $function ) {
 743                         $rf = new ReflectionFunction( $function );
 744                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 745                 }
 746
 747                 asort( $memStats );
 748
 749                 return $memStats;
 750         }
 751
 752         /**
 753          * Get a Parser object
 754          */
 755         function getParser( $preprocessor = null ) {
 756                 global $wgParserConf;
 757
 758                 $class = $wgParserConf['class'];
 759                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 760
 761                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 762
 763                 return $parser;
 764         }
 765
 766         //Various action functions
 767
 768         public function addArticle( $name, $text, $line ) {
 769                 self::$articles[$name] = array( $text, $line );
 770         }
 771
 772         public function publishTestArticles() {
 773                 if ( empty( self::$articles ) ) {
 774                         return;
 775                 }
 776
 777                 foreach ( self::$articles as $name => $info ) {
 778                         list( $text, $line ) = $info;
 779                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 780                 }
 781         }
 782
 783         /**
 784          * Steal a callback function from the primary parser, save it for
 785          * application to our scary parser. If the hook is not installed,
 786          * abort processing of this file.
 787          *
 788          * @param $name String
 789          * @return Bool true if tag hook is present
 790          */
 791         public function requireHook( $name ) {
 792                 global $wgParser;
 793                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 794                 return isset( $wgParser->mTagHooks[$name] );
 795         }
 796
 797         public function requireFunctionHook( $name ) {
 798                 global $wgParser;
 799                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 800                 return isset( $wgParser->mFunctionHooks[$name] );
 801         }
 802         //Various "cleanup" functions
 803
 804         /**
 805          * Run the "tidy" command on text if the $wgUseTidy
 806          * global is true
 807          *
 808          * @param $text String: the text to tidy
 809          * @return String
 810          */
 811         protected function tidy( $text ) {
 812                 global $wgUseTidy;
 813
 814                 if ( $wgUseTidy ) {
 815                         $text = MWTidy::tidy( $text );
 816                 }
 817
 818                 return $text;
 819         }
 820
 821         /**
 822          * Remove last character if it is a newline
 823          */
 824         public function removeEndingNewline( $s ) {
 825                 if ( substr( $s, -1 ) === "\n" ) {
 826                         return substr( $s, 0, -1 );
 827                 }
 828                 else {
 829                         return $s;
 830                 }
 831         }
 832
 833         //Test options parser functions
 834
 835         protected function parseOptions( $instring ) {
 836                 $opts = array();
 837                 // foo
 838                 // foo=bar
 839                 // foo="bar baz"
 840                 // foo=[[bar baz]]
 841                 // foo=bar,"baz quux"
 842                 $regex = '/\b
 843                         ([\w-]+)                                                # Key
 844                         \b
 845                         (?:\s*
 846                                 =                                               # First sub-value
 847                                 \s*
 848                                 (
 849                                         "
 850                                                 [^"]*                   # Quoted val
 851                                         "
 852                                 |
 853                                         \[\[
 854                                                 [^]]*                   # Link target
 855                                         \]\]
 856                                 |
 857                                         [\w-]+                          # Plain word
 858                                 )
 859                                 (?:\s*
 860                                         ,                                       # Sub-vals 1..N
 861                                         \s*
 862                                         (
 863                                                 "[^"]*"                 # Quoted val
 864                                         |
 865                                                 \[\[[^]]*\]\]   # Link target
 866                                         |
 867                                                 [\w-]+                  # Plain word
 868                                         )
 869                                 )*
 870                         )?
 871                         /x';
 872
 873                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 874                         foreach ( $matches as $bits ) {
 875                                 array_shift( $bits );
 876                                 $key = strtolower( array_shift( $bits ) );
 877                                 if ( count( $bits ) == 0 ) {
 878                                         $opts[$key] = true;
 879                                 } elseif ( count( $bits ) == 1 ) {
 880                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 881                                 } else {
 882                                         // Array!
 883                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 884                                 }
 885                         }
 886                 }
 887                 return $opts;
 888         }
 889
 890         protected function cleanupOption( $opt ) {
 891                 if ( substr( $opt, 0, 1 ) == '"' ) {
 892                         return substr( $opt, 1, -1 );
 893                 }
 894
 895                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 896                         return substr( $opt, 2, -2 );
 897                 }
 898                 return $opt;
 899         }
 900
 901         /**
 902          * Use a regex to find out the value of an option
 903          * @param $key String: name of option val to retrieve
 904          * @param $opts Options array to look in
 905          * @param $default Mixed: default value returned if not found
 906          */
 907         protected static function getOptionValue( $key, $opts, $default ) {
 908                 $key = strtolower( $key );
 909
 910                 if ( isset( $opts[$key] ) ) {
 911                         return $opts[$key];
 912                 } else {
 913                         return $default;
 914                 }
 915         }
 916 }