tests/parser/parserTest.inc

   1 <?php
   2 /**
   3  * Helper code for the MediaWiki parser test suite. Some code is duplicated
   4  * in PHPUnit's NewParserTests.php, so you'll probably want to update both
   5  * at the same time.
   6  *
   7  * Copyright © 2004, 2010 Brion Vibber <brion@pobox.com>
   8  * https://www.mediawiki.org/
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License along
  21  * with this program; if not, write to the Free Software Foundation, Inc.,
  22  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  23  * http://www.gnu.org/copyleft/gpl.html
  24  *
  25  * @todo Make this more independent of the configuration (and if possible the database)
  26  * @todo document
  27  * @file
  28  * @ingroup Testing
  29  */
  30
  31 /**
  32  * @ingroup Testing
  33  */
  34 class ParserTest {
  35         /**
  36          * @var bool $color whereas output should be colorized
  37          */
  38         private $color;
  39
  40         /**
  41          * @var bool $showOutput Show test output
  42          */
  43         private $showOutput;
  44
  45         /**
  46          * @var bool $useTemporaryTables Use temporary tables for the temporary database
  47          */
  48         private $useTemporaryTables = true;
  49
  50         /**
  51          * @var bool $databaseSetupDone True if the database has been set up
  52          */
  53         private $databaseSetupDone = false;
  54
  55         /**
  56          * Our connection to the database
  57          * @var DatabaseBase
  58          */
  59         private $db;
  60
  61         /**
  62          * Database clone helper
  63          * @var CloneDatabase
  64          */
  65         private $dbClone;
  66
  67         /**
  68          * @var DjVuSupport
  69          */
  70         private $djVuSupport;
  71
  72         private $maxFuzzTestLength = 300;
  73         private $fuzzSeed = 0;
  74         private $memoryLimit = 50;
  75         private $uploadDir = null;
  76
  77         public $regex = "";
  78         private $savedGlobals = array();
  79
  80         /**
  81          * Sets terminal colorization and diff/quick modes depending on OS and
  82          * command-line options (--color and --quick).
  83          * @param array $options
  84          */
  85         public function __construct( $options = array() ) {
  86                 # Only colorize output if stdout is a terminal.
  87                 $this->color = !wfIsWindows() && Maintenance::posix_isatty( 1 );
  88
  89                 if ( isset( $options['color'] ) ) {
  90                         switch ( $options['color'] ) {
  91                                 case 'no':
  92                                         $this->color = false;
  93                                         break;
  94                                 case 'yes':
  95                                 default:
  96                                         $this->color = true;
  97                                         break;
  98                         }
  99                 }
 100
 101                 $this->term = $this->color
 102                         ? new AnsiTermColorer()
 103                         : new DummyTermColorer();
 104
 105                 $this->showDiffs = !isset( $options['quick'] );
 106                 $this->showProgress = !isset( $options['quiet'] );
 107                 $this->showFailure = !(
 108                         isset( $options['quiet'] )
 109                                 && ( isset( $options['record'] )
 110                                 || isset( $options['compare'] ) ) ); // redundant output
 111
 112                 $this->showOutput = isset( $options['show-output'] );
 113
 114                 if ( isset( $options['filter'] ) ) {
 115                         $options['regex'] = $options['filter'];
 116                 }
 117
 118                 if ( isset( $options['regex'] ) ) {
 119                         if ( isset( $options['record'] ) ) {
 120                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
 121                                 unset( $options['record'] );
 122                         }
 123                         $this->regex = $options['regex'];
 124                 } else {
 125                         # Matches anything
 126                         $this->regex = '';
 127                 }
 128
 129                 $this->setupRecorder( $options );
 130                 $this->keepUploads = isset( $options['keep-uploads'] );
 131
 132                 if ( isset( $options['seed'] ) ) {
 133                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
 134                 }
 135
 136                 $this->runDisabled = isset( $options['run-disabled'] );
 137                 $this->runParsoid = isset( $options['run-parsoid'] );
 138
 139                 $this->djVuSupport = new DjVuSupport();
 140
 141                 $this->hooks = array();
 142                 $this->functionHooks = array();
 143                 $this->transparentHooks = array();
 144                 self::setUp();
 145         }
 146
 147         static function setUp() {
 148                 global $wgParser, $wgParserConf, $IP, $messageMemc, $wgMemc,
 149                         $wgUser, $wgLang, $wgOut, $wgRequest, $wgStyleDirectory, $wgEnableParserCache,
 150                         $wgExtraNamespaces, $wgNamespaceAliases, $wgNamespaceProtection, $wgLocalFileRepo,
 151                         $wgExtraInterlanguageLinkPrefixes, $wgLocalInterwikis,
 152                         $parserMemc, $wgThumbnailScriptPath, $wgScriptPath,
 153                         $wgArticlePath, $wgScript, $wgStylePath, $wgExtensionAssetsPath,
 154                         $wgMainCacheType, $wgMessageCacheType, $wgParserCacheType, $wgLockManagers;
 155
 156                 $wgScript = '/index.php';
 157                 $wgScriptPath = '/';
 158                 $wgArticlePath = '/wiki/$1';
 159                 $wgStylePath = '/skins';
 160                 $wgExtensionAssetsPath = '/extensions';
 161                 $wgThumbnailScriptPath = false;
 162                 $wgLockManagers = array( array(
 163                         'name' => 'fsLockManager',
 164                         'class' => 'FSLockManager',
 165                         'lockDirectory' => wfTempDir() . '/test-repo/lockdir',
 166                 ), array(
 167                         'name' => 'nullLockManager',
 168                         'class' => 'NullLockManager',
 169                 ) );
 170                 $wgLocalFileRepo = array(
 171                         'class' => 'LocalRepo',
 172                         'name' => 'local',
 173                         'url' => 'http://example.com/images',
 174                         'hashLevels' => 2,
 175                         'transformVia404' => false,
 176                         'backend' => new FSFileBackend( array(
 177                                 'name' => 'local-backend',
 178                                 'wikiId' => wfWikiId(),
 179                                 'containerPaths' => array(
 180                                         'local-public' => wfTempDir() . '/test-repo/public',
 181                                         'local-thumb' => wfTempDir() . '/test-repo/thumb',
 182                                         'local-temp' => wfTempDir() . '/test-repo/temp',
 183                                         'local-deleted' => wfTempDir() . '/test-repo/deleted',
 184                                 )
 185                         ) )
 186                 );
 187                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 188                 $wgNamespaceAliases['Image'] = NS_FILE;
 189                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 190                 # add a namespace shadowing a interwiki link, to test
 191                 # proper precedence when resolving links. (bug 51680)
 192                 $wgExtraNamespaces[100] = 'MemoryAlpha';
 193
 194                 // XXX: tests won't run without this (for CACHE_DB)
 195                 if ( $wgMainCacheType === CACHE_DB ) {
 196                         $wgMainCacheType = CACHE_NONE;
 197                 }
 198                 if ( $wgMessageCacheType === CACHE_DB ) {
 199                         $wgMessageCacheType = CACHE_NONE;
 200                 }
 201                 if ( $wgParserCacheType === CACHE_DB ) {
 202                         $wgParserCacheType = CACHE_NONE;
 203                 }
 204
 205                 $wgEnableParserCache = false;
 206                 DeferredUpdates::clearPendingUpdates();
 207                 $wgMemc = wfGetMainCache(); // checks $wgMainCacheType
 208                 $messageMemc = wfGetMessageCacheStorage();
 209                 $parserMemc = wfGetParserCacheStorage();
 210
 211                 $wgUser = new User;
 212                 $context = new RequestContext;
 213                 $wgLang = $context->getLanguage();
 214                 $wgOut = $context->getOutput();
 215                 $wgParser = new StubObject( 'wgParser', $wgParserConf['class'], array( $wgParserConf ) );
 216                 $wgRequest = $context->getRequest();
 217
 218                 if ( $wgStyleDirectory === false ) {
 219                         $wgStyleDirectory = "$IP/skins";
 220                 }
 221
 222                 self::setupInterwikis();
 223                 $wgLocalInterwikis = array( 'local', 'mi' );
 224                 // "extra language links"
 225                 // see https://gerrit.wikimedia.org/r/111390
 226                 array_push( $wgExtraInterlanguageLinkPrefixes, 'mul' );
 227         }
 228
 229         /**
 230          * Insert hardcoded interwiki in the lookup table.
 231          *
 232          * This function insert a set of well known interwikis that are used in
 233          * the parser tests. They can be considered has fixtures are injected in
 234          * the interwiki cache by using the 'InterwikiLoadPrefix' hook.
 235          * Since we are not interested in looking up interwikis in the database,
 236          * the hook completely replace the existing mechanism (hook returns false).
 237          */
 238         public static function setupInterwikis() {
 239                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 240                 # for testing inter-language links
 241                 Hooks::register( 'InterwikiLoadPrefix', function ( $prefix, &$iwData ) {
 242                         static $testInterwikis = array(
 243                                 'local' => array(
 244                                         'iw_url' => 'http://doesnt.matter.org/$1',
 245                                         'iw_api' => '',
 246                                         'iw_wikiid' => '',
 247                                         'iw_local' => 0 ),
 248                                 'wikipedia' => array(
 249                                         'iw_url' => 'http://en.wikipedia.org/wiki/$1',
 250                                         'iw_api' => '',
 251                                         'iw_wikiid' => '',
 252                                         'iw_local' => 0 ),
 253                                 'meatball' => array(
 254                                         'iw_url' => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 255                                         'iw_api' => '',
 256                                         'iw_wikiid' => '',
 257                                         'iw_local' => 0 ),
 258                                 'memoryalpha' => array(
 259                                         'iw_url' => 'http://www.memory-alpha.org/en/index.php/$1',
 260                                         'iw_api' => '',
 261                                         'iw_wikiid' => '',
 262                                         'iw_local' => 0 ),
 263                                 'zh' => array(
 264                                         'iw_url' => 'http://zh.wikipedia.org/wiki/$1',
 265                                         'iw_api' => '',
 266                                         'iw_wikiid' => '',
 267                                         'iw_local' => 1 ),
 268                                 'es' => array(
 269                                         'iw_url' => 'http://es.wikipedia.org/wiki/$1',
 270                                         'iw_api' => '',
 271                                         'iw_wikiid' => '',
 272                                         'iw_local' => 1 ),
 273                                 'fr' => array(
 274                                         'iw_url' => 'http://fr.wikipedia.org/wiki/$1',
 275                                         'iw_api' => '',
 276                                         'iw_wikiid' => '',
 277                                         'iw_local' => 1 ),
 278                                 'ru' => array(
 279                                         'iw_url' => 'http://ru.wikipedia.org/wiki/$1',
 280                                         'iw_api' => '',
 281                                         'iw_wikiid' => '',
 282                                         'iw_local' => 1 ),
 283                                 'mi' => array(
 284                                         'iw_url' => 'http://mi.wikipedia.org/wiki/$1',
 285                                         'iw_api' => '',
 286                                         'iw_wikiid' => '',
 287                                         'iw_local' => 1 ),
 288                                 'mul' => array(
 289                                         'iw_url' => 'http://wikisource.org/wiki/$1',
 290                                         'iw_api' => '',
 291                                         'iw_wikiid' => '',
 292                                         'iw_local' => 1 ),
 293                         );
 294                         if ( array_key_exists( $prefix, $testInterwikis ) ) {
 295                                 $iwData = $testInterwikis[$prefix];
 296                         }
 297
 298                         // We only want to rely on the above fixtures
 299                         return false;
 300                 } );// hooks::register
 301         }
 302
 303         /**
 304          * Remove the hardcoded interwiki lookup table.
 305          */
 306         public static function tearDownInterwikis() {
 307                 Hooks::clear( 'InterwikiLoadPrefix' );
 308         }
 309
 310         public function setupRecorder( $options ) {
 311                 if ( isset( $options['record'] ) ) {
 312                         $this->recorder = new DbTestRecorder( $this );
 313                         $this->recorder->version = isset( $options['setversion'] ) ?
 314                                 $options['setversion'] : SpecialVersion::getVersion();
 315                 } elseif ( isset( $options['compare'] ) ) {
 316                         $this->recorder = new DbTestPreviewer( $this );
 317                 } else {
 318                         $this->recorder = new TestRecorder( $this );
 319                 }
 320         }
 321
 322         /**
 323          * Remove last character if it is a newline
 324          * @group utility
 325          * @param string $s
 326          */
 327         public static function chomp( $s ) {
 328                 if ( substr( $s, -1 ) === "\n" ) {
 329                         return substr( $s, 0, -1 );
 330                 } else {
 331                         return $s;
 332                 }
 333         }
 334
 335         /**
 336          * Run a fuzz test series
 337          * Draw input from a set of test files
 338          * @param array $filenames
 339          */
 340         function fuzzTest( $filenames ) {
 341                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
 342                 $dict = $this->getFuzzInput( $filenames );
 343                 $dictSize = strlen( $dict );
 344                 $logMaxLength = log( $this->maxFuzzTestLength );
 345                 $this->setupDatabase();
 346                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 347
 348                 $numTotal = 0;
 349                 $numSuccess = 0;
 350                 $user = new User;
 351                 $opts = ParserOptions::newFromUser( $user );
 352                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 353
 354                 while ( true ) {
 355                         // Generate test input
 356                         mt_srand( ++$this->fuzzSeed );
 357                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 358                         $input = '';
 359
 360                         while ( strlen( $input ) < $totalLength ) {
 361                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 362                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 363                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 364                                 $input .= substr( $dict, $offset, $hairLength );
 365                         }
 366
 367                         $this->setupGlobals();
 368                         $parser = $this->getParser();
 369
 370                         // Run the test
 371                         try {
 372                                 $parser->parse( $input, $title, $opts );
 373                                 $fail = false;
 374                         } catch ( Exception $exception ) {
 375                                 $fail = true;
 376                         }
 377
 378                         if ( $fail ) {
 379                                 echo "Test failed with seed {$this->fuzzSeed}\n";
 380                                 echo "Input:\n";
 381                                 printf( "string(%d) \"%s\"\n\n", strlen( $input ), $input );
 382                                 echo "$exception\n";
 383                         } else {
 384                                 $numSuccess++;
 385                         }
 386
 387                         $numTotal++;
 388                         $this->teardownGlobals();
 389                         $parser->__destruct();
 390
 391                         if ( $numTotal % 100 == 0 ) {
 392                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 393                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 394                                 if ( $usage > 90 ) {
 395                                         echo "Out of memory:\n";
 396                                         $memStats = $this->getMemoryBreakdown();
 397
 398                                         foreach ( $memStats as $name => $usage ) {
 399                                                 echo "$name: $usage\n";
 400                                         }
 401                                         $this->abort();
 402                                 }
 403                         }
 404                 }
 405         }
 406
 407         /**
 408          * Get an input dictionary from a set of parser test files
 409          * @param array $filenames
 410          */
 411         function getFuzzInput( $filenames ) {
 412                 $dict = '';
 413
 414                 foreach ( $filenames as $filename ) {
 415                         $contents = file_get_contents( $filename );
 416                         preg_match_all(
 417                                 '/!!\s*(input|wikitext)\n(.*?)\n!!\s*(result|html|html\/\*|html\/php)/s',
 418                                 $contents,
 419                                 $matches
 420                         );
 421
 422                         foreach ( $matches[1] as $match ) {
 423                                 $dict .= $match . "\n";
 424                         }
 425                 }
 426
 427                 return $dict;
 428         }
 429
 430         /**
 431          * Get a memory usage breakdown
 432          */
 433         function getMemoryBreakdown() {
 434                 $memStats = array();
 435
 436                 foreach ( $GLOBALS as $name => $value ) {
 437                         $memStats['$' . $name] = strlen( serialize( $value ) );
 438                 }
 439
 440                 $classes = get_declared_classes();
 441
 442                 foreach ( $classes as $class ) {
 443                         $rc = new ReflectionClass( $class );
 444                         $props = $rc->getStaticProperties();
 445                         $memStats[$class] = strlen( serialize( $props ) );
 446                         $methods = $rc->getMethods();
 447
 448                         foreach ( $methods as $method ) {
 449                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 450                         }
 451                 }
 452
 453                 $functions = get_defined_functions();
 454
 455                 foreach ( $functions['user'] as $function ) {
 456                         $rf = new ReflectionFunction( $function );
 457                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 458                 }
 459
 460                 asort( $memStats );
 461
 462                 return $memStats;
 463         }
 464
 465         function abort() {
 466                 $this->abort();
 467         }
 468
 469         /**
 470          * Run a series of tests listed in the given text files.
 471          * Each test consists of a brief description, wikitext input,
 472          * and the expected HTML output.
 473          *
 474          * Prints status updates on stdout and counts up the total
 475          * number and percentage of passed tests.
 476          *
 477          * @param array $filenames Array of strings
 478          * @return bool True if passed all tests, false if any tests failed.
 479          */
 480         public function runTestsFromFiles( $filenames ) {
 481                 $ok = false;
 482
 483                 // be sure, ParserTest::addArticle has correct language set,
 484                 // so that system messages gets into the right language cache
 485                 $GLOBALS['wgLanguageCode'] = 'en';
 486                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
 487
 488                 $this->recorder->start();
 489                 try {
 490                         $this->setupDatabase();
 491                         $ok = true;
 492
 493                         foreach ( $filenames as $filename ) {
 494                                 $tests = new TestFileIterator( $filename, $this );
 495                                 $ok = $this->runTests( $tests ) && $ok;
 496                         }
 497
 498                         $this->teardownDatabase();
 499                         $this->recorder->report();
 500                 } catch ( DBError $e ) {
 501                         echo $e->getMessage();
 502                 }
 503                 $this->recorder->end();
 504
 505                 return $ok;
 506         }
 507
 508         function runTests( $tests ) {
 509                 $ok = true;
 510
 511                 foreach ( $tests as $t ) {
 512                         $result =
 513                                 $this->runTest( $t['test'], $t['input'], $t['result'], $t['options'], $t['config'] );
 514                         $ok = $ok && $result;
 515                         $this->recorder->record( $t['test'], $result );
 516                 }
 517
 518                 if ( $this->showProgress ) {
 519                         print "\n";
 520                 }
 521
 522                 return $ok;
 523         }
 524
 525         /**
 526          * Get a Parser object
 527          *
 528          * @param string $preprocessor
 529          * @return Parser
 530          */
 531         function getParser( $preprocessor = null ) {
 532                 global $wgParserConf;
 533
 534                 $class = $wgParserConf['class'];
 535                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 536
 537                 foreach ( $this->hooks as $tag => $callback ) {
 538                         $parser->setHook( $tag, $callback );
 539                 }
 540
 541                 foreach ( $this->functionHooks as $tag => $bits ) {
 542                         list( $callback, $flags ) = $bits;
 543                         $parser->setFunctionHook( $tag, $callback, $flags );
 544                 }
 545
 546                 foreach ( $this->transparentHooks as $tag => $callback ) {
 547                         $parser->setTransparentTagHook( $tag, $callback );
 548                 }
 549
 550                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 551
 552                 return $parser;
 553         }
 554
 555         /**
 556          * Run a given wikitext input through a freshly-constructed wiki parser,
 557          * and compare the output against the expected results.
 558          * Prints status and explanatory messages to stdout.
 559          *
 560          * @param string $desc Test's description
 561          * @param string $input Wikitext to try rendering
 562          * @param string $result Result to output
 563          * @param array $opts Test's options
 564          * @param string $config Overrides for global variables, one per line
 565          * @return bool
 566          */
 567         public function runTest( $desc, $input, $result, $opts, $config ) {
 568                 if ( $this->showProgress ) {
 569                         $this->showTesting( $desc );
 570                 }
 571
 572                 $opts = $this->parseOptions( $opts );
 573                 $context = $this->setupGlobals( $opts, $config );
 574
 575                 $user = $context->getUser();
 576                 $options = ParserOptions::newFromContext( $context );
 577
 578                 if ( isset( $opts['djvu'] ) ) {
 579                         if ( !$this->djVuSupport->isEnabled() ) {
 580                                 return $this->showSkipped();
 581                         }
 582                 }
 583
 584                 if ( isset( $opts['title'] ) ) {
 585                         $titleText = $opts['title'];
 586                 } else {
 587                         $titleText = 'Parser test';
 588                 }
 589
 590                 $local = isset( $opts['local'] );
 591                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 592                 $parser = $this->getParser( $preprocessor );
 593                 $title = Title::newFromText( $titleText );
 594
 595                 if ( isset( $opts['pst'] ) ) {
 596                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 597                 } elseif ( isset( $opts['msg'] ) ) {
 598                         $out = $parser->transformMsg( $input, $options, $title );
 599                 } elseif ( isset( $opts['section'] ) ) {
 600                         $section = $opts['section'];
 601                         $out = $parser->getSection( $input, $section );
 602                 } elseif ( isset( $opts['replace'] ) ) {
 603                         $section = $opts['replace'][0];
 604                         $replace = $opts['replace'][1];
 605                         $out = $parser->replaceSection( $input, $section, $replace );
 606                 } elseif ( isset( $opts['comment'] ) ) {
 607                         $out = Linker::formatComment( $input, $title, $local );
 608                 } elseif ( isset( $opts['preload'] ) ) {
 609                         $out = $parser->getPreloadText( $input, $title, $options );
 610                 } else {
 611                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 612                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 613                         $out = $output->getText();
 614
 615                         if ( isset( $opts['showtitle'] ) ) {
 616                                 if ( $output->getTitleText() ) {
 617                                         $title = $output->getTitleText();
 618                                 }
 619
 620                                 $out = "$title\n$out";
 621                         }
 622
 623                         if ( isset( $opts['ill'] ) ) {
 624                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 625                         } elseif ( isset( $opts['cat'] ) ) {
 626                                 $outputPage = $context->getOutput();
 627                                 $outputPage->addCategoryLinks( $output->getCategories() );
 628                                 $cats = $outputPage->getCategoryLinks();
 629
 630                                 if ( isset( $cats['normal'] ) ) {
 631                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 632                                 } else {
 633                                         $out = '';
 634                                 }
 635                         }
 636
 637                         $result = $this->tidy( $result );
 638                 }
 639
 640                 $this->teardownGlobals();
 641
 642                 $testResult = new ParserTestResult( $desc );
 643                 $testResult->expected = $result;
 644                 $testResult->actual = $out;
 645
 646                 return $this->showTestResult( $testResult );
 647         }
 648
 649         /**
 650          * Refactored in 1.22 to use ParserTestResult
 651          * @param ParserTestResult $testResult
 652          */
 653         function showTestResult( ParserTestResult $testResult ) {
 654                 if ( $testResult->isSuccess() ) {
 655                         $this->showSuccess( $testResult );
 656                         return true;
 657                 } else {
 658                         $this->showFailure( $testResult );
 659                         return false;
 660                 }
 661         }
 662
 663         /**
 664          * Use a regex to find out the value of an option
 665          * @param string $key Name of option val to retrieve
 666          * @param array $opts Options array to look in
 667          * @param mixed $default Default value returned if not found
 668          */
 669         private static function getOptionValue( $key, $opts, $default ) {
 670                 $key = strtolower( $key );
 671
 672                 if ( isset( $opts[$key] ) ) {
 673                         return $opts[$key];
 674                 } else {
 675                         return $default;
 676                 }
 677         }
 678
 679         private function parseOptions( $instring ) {
 680                 $opts = array();
 681                 // foo
 682                 // foo=bar
 683                 // foo="bar baz"
 684                 // foo=[[bar baz]]
 685                 // foo=bar,"baz quux"
 686                 // foo={...json...}
 687                 $defs = '(?(DEFINE)
 688                         (?<qstr>                                        # Quoted string
 689                                 "
 690                                 (?:[^\\\\"] | \\\\.)*
 691                                 "
 692                         )
 693                         (?<json>
 694                                 \{              # Open bracket
 695                                 (?:
 696                                         [^"{}] |                                # Not a quoted string or object, or
 697                                         (?&qstr) |                              # A quoted string, or
 698                                         (?&json)                                # A json object (recursively)
 699                                 )*
 700                                 \}              # Close bracket
 701                         )
 702             (?<value>
 703                                 (?:
 704                                         (?&qstr)                        # Quoted val
 705                                 |
 706                                         \[\[
 707                                                 [^]]*                   # Link target
 708                                         \]\]
 709                                 |
 710                                         [\w-]+                          # Plain word
 711                                 |
 712                                         (?&json)                        # JSON object
 713                                 )
 714                         )
 715                 )';
 716                 $regex = '/' . $defs . '\b
 717                         (?<k>[\w-]+)                            # Key
 718                         \b
 719                         (?:\s*
 720                                 =                                               # First sub-value
 721                                 \s*
 722                                 (?<v>
 723                                         (?&value)
 724                                         (?:\s*
 725                                                 ,                               # Sub-vals 1..N
 726                                                 \s*
 727                                                 (?&value)
 728                                         )*
 729                                 )
 730                         )?
 731                         /x';
 732                 $valueregex = '/' . $defs . '(?&value)/x';
 733
 734                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 735                         foreach ( $matches as $bits ) {
 736                                 $key = strtolower( $bits['k'] );
 737                                 if ( !isset( $bits['v'] ) ) {
 738                                         $opts[$key] = true;
 739                                 } else {
 740                                         preg_match_all( $valueregex, $bits['v'], $vmatches );
 741                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $vmatches[0] );
 742                                         if ( count( $opts[$key] ) == 1 ) {
 743                                                 $opts[$key] = $opts[$key][0];
 744                                         }
 745                                 }
 746                         }
 747                 }
 748                 return $opts;
 749         }
 750
 751         private function cleanupOption( $opt ) {
 752                 if ( substr( $opt, 0, 1 ) == '"' ) {
 753                         return stripcslashes( substr( $opt, 1, -1 ) );
 754                 }
 755
 756                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 757                         return substr( $opt, 2, -2 );
 758                 }
 759
 760                 if ( substr( $opt, 0, 1 ) == '{' ) {
 761                         return FormatJson::decode( $opt, true );
 762                 }
 763                 return $opt;
 764         }
 765
 766         /**
 767          * Set up the global variables for a consistent environment for each test.
 768          * Ideally this should replace the global configuration entirely.
 769          * @param string $opts
 770          * @param string $config
 771          */
 772         private function setupGlobals( $opts = '', $config = '' ) {
 773                 # Find out values for some special options.
 774                 $lang =
 775                         self::getOptionValue( 'language', $opts, 'en' );
 776                 $variant =
 777                         self::getOptionValue( 'variant', $opts, false );
 778                 $maxtoclevel =
 779                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 780                 $linkHolderBatchSize =
 781                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 782
 783                 $settings = array(
 784                         'wgServer' => 'http://example.org',
 785                         'wgServerName' => 'example.org',
 786                         'wgScript' => '/index.php',
 787                         'wgScriptPath' => '/',
 788                         'wgArticlePath' => '/wiki/$1',
 789                         'wgActionPaths' => array(),
 790                         'wgLockManagers' => array( array(
 791                                 'name' => 'fsLockManager',
 792                                 'class' => 'FSLockManager',
 793                                 'lockDirectory' => $this->uploadDir . '/lockdir',
 794                         ), array(
 795                                 'name' => 'nullLockManager',
 796                                 'class' => 'NullLockManager',
 797                         ) ),
 798                         'wgLocalFileRepo' => array(
 799                                 'class' => 'LocalRepo',
 800                                 'name' => 'local',
 801                                 'url' => 'http://example.com/images',
 802                                 'hashLevels' => 2,
 803                                 'transformVia404' => false,
 804                                 'backend' => new FSFileBackend( array(
 805                                         'name' => 'local-backend',
 806                                         'wikiId' => wfWikiId(),
 807                                         'containerPaths' => array(
 808                                                 'local-public' => $this->uploadDir,
 809                                                 'local-thumb' => $this->uploadDir . '/thumb',
 810                                                 'local-temp' => $this->uploadDir . '/temp',
 811                                                 'local-deleted' => $this->uploadDir . '/delete',
 812                                         )
 813                                 ) )
 814                         ),
 815                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 816                         'wgStylePath' => '/skins',
 817                         'wgSitename' => 'MediaWiki',
 818                         'wgLanguageCode' => $lang,
 819                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'parsertest_' : 'pt_',
 820                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 821                         'wgLang' => null,
 822                         'wgContLang' => null,
 823                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 824                         'wgMaxTocLevel' => $maxtoclevel,
 825                         'wgCapitalLinks' => true,
 826                         'wgNoFollowLinks' => true,
 827                         'wgNoFollowDomainExceptions' => array(),
 828                         'wgThumbnailScriptPath' => false,
 829                         'wgUseImageResize' => true,
 830                         'wgSVGConverter' => 'null',
 831                         'wgSVGConverters' => array( 'null' => 'echo "1">$output' ),
 832                         'wgLocaltimezone' => 'UTC',
 833                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 834                         'wgThumbLimits' => array( self::getOptionValue( 'thumbsize', $opts, 180 ) ),
 835                         'wgUseTidy' => false,
 836                         'wgDefaultLanguageVariant' => $variant,
 837                         'wgVariantArticlePath' => false,
 838                         'wgGroupPermissions' => array( '*' => array(
 839                                 'createaccount' => true,
 840                                 'read' => true,
 841                                 'edit' => true,
 842                                 'createpage' => true,
 843                                 'createtalk' => true,
 844                         ) ),
 845                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 846                         'wgDefaultExternalStore' => array(),
 847                         'wgForeignFileRepos' => array(),
 848                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 849                         'wgExperimentalHtmlIds' => false,
 850                         'wgExternalLinkTarget' => false,
 851                         'wgAlwaysUseTidy' => false,
 852                         'wgHtml5' => true,
 853                         'wgWellFormedXml' => true,
 854                         'wgAllowMicrodataAttributes' => true,
 855                         'wgAdaptiveMessageCache' => true,
 856                         'wgDisableLangConversion' => false,
 857                         'wgDisableTitleConversion' => false,
 858                 );
 859
 860                 if ( $config ) {
 861                         $configLines = explode( "\n", $config );
 862
 863                         foreach ( $configLines as $line ) {
 864                                 list( $var, $value ) = explode( '=', $line, 2 );
 865
 866                                 $settings[$var] = eval( "return $value;" );
 867                         }
 868                 }
 869
 870                 $this->savedGlobals = array();
 871
 872                 /** @since 1.20 */
 873                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 874
 875                 foreach ( $settings as $var => $val ) {
 876                         if ( array_key_exists( $var, $GLOBALS ) ) {
 877                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 878                         }
 879
 880                         $GLOBALS[$var] = $val;
 881                 }
 882
 883                 $GLOBALS['wgContLang'] = Language::factory( $lang );
 884                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 885
 886                 $context = new RequestContext();
 887                 $GLOBALS['wgLang'] = $context->getLanguage();
 888                 $GLOBALS['wgOut'] = $context->getOutput();
 889                 $GLOBALS['wgUser'] = $context->getUser();
 890
 891                 // We (re)set $wgThumbLimits to a single-element array above.
 892                 $context->getUser()->setOption( 'thumbsize', 0 );
 893
 894                 global $wgHooks;
 895
 896                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 897                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 898
 899                 MagicWord::clearCache();
 900
 901                 return $context;
 902         }
 903
 904         /**
 905          * List of temporary tables to create, without prefix.
 906          * Some of these probably aren't necessary.
 907          */
 908         private function listTables() {
 909                 $tables = array( 'user', 'user_properties', 'user_former_groups', 'page', 'page_restrictions',
 910                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 911                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
 912                         'site_stats', 'hitcounter', 'ipblocks', 'image', 'oldimage',
 913                         'recentchanges', 'watchlist', 'interwiki', 'logging',
 914                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 915                         'archive', 'user_groups', 'page_props', 'category', 'msg_resource', 'msg_resource_links'
 916                 );
 917
 918                 if ( in_array( $this->db->getType(), array( 'mysql', 'sqlite', 'oracle' ) ) ) {
 919                         array_push( $tables, 'searchindex' );
 920                 }
 921
 922                 // Allow extensions to add to the list of tables to duplicate;
 923                 // may be necessary if they hook into page save or other code
 924                 // which will require them while running tests.
 925                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
 926
 927                 return $tables;
 928         }
 929
 930         /**
 931          * Set up a temporary set of wiki tables to work with for the tests.
 932          * Currently this will only be done once per run, and any changes to
 933          * the db will be visible to later tests in the run.
 934          */
 935         public function setupDatabase() {
 936                 global $wgDBprefix;
 937
 938                 if ( $this->databaseSetupDone ) {
 939                         return;
 940                 }
 941
 942                 $this->db = wfGetDB( DB_MASTER );
 943                 $dbType = $this->db->getType();
 944
 945                 if ( $wgDBprefix === 'parsertest_' || ( $dbType == 'oracle' && $wgDBprefix === 'pt_' ) ) {
 946                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
 947                 }
 948
 949                 $this->databaseSetupDone = true;
 950
 951                 # SqlBagOStuff broke when using temporary tables on r40209 (bug 15892).
 952                 # It seems to have been fixed since (r55079?), but regressed at some point before r85701.
 953                 # This works around it for now...
 954                 ObjectCache::$instances[CACHE_DB] = new HashBagOStuff;
 955
 956                 # CREATE TEMPORARY TABLE breaks if there is more than one server
 957                 if ( wfGetLB()->getServerCount() != 1 ) {
 958                         $this->useTemporaryTables = false;
 959                 }
 960
 961                 $temporary = $this->useTemporaryTables || $dbType == 'postgres';
 962                 $prefix = $dbType != 'oracle' ? 'parsertest_' : 'pt_';
 963
 964                 $this->dbClone = new CloneDatabase( $this->db, $this->listTables(), $prefix );
 965                 $this->dbClone->useTemporaryTables( $temporary );
 966                 $this->dbClone->cloneTableStructure();
 967
 968                 if ( $dbType == 'oracle' ) {
 969                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
 970                         # Insert 0 user to prevent FK violations
 971
 972                         # Anonymous user
 973                         $this->db->insert( 'user', array(
 974                                 'user_id' => 0,
 975                                 'user_name' => 'Anonymous' ) );
 976                 }
 977
 978                 # Update certain things in site_stats
 979                 $this->db->insert( 'site_stats',
 980                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ) );
 981
 982                 # Reinitialise the LocalisationCache to match the database state
 983                 Language::getLocalisationCache()->unloadAll();
 984
 985                 # Clear the message cache
 986                 MessageCache::singleton()->clear();
 987
 988                 // Remember to update newParserTests.php after changing the below
 989                 // (and it uses a slightly different syntax just for teh lulz)
 990                 $this->uploadDir = $this->setupUploadDir();
 991                 $user = User::createNew( 'WikiSysop' );
 992                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 993                 # note that the size/width/height/bits/etc of the file
 994                 # are actually set by inspecting the file itself; the arguments
 995                 # to recordUpload2 have no effect.  That said, we try to make things
 996                 # match up so it is less confusing to readers of the code & tests.
 997                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', array(
 998                         'size' => 7881,
 999                         'width' => 1941,
1000                         'height' => 220,
1001                         'bits' => 8,
1002                         'media_type' => MEDIATYPE_BITMAP,
1003                         'mime' => 'image/jpeg',
1004                         'metadata' => serialize( array() ),
1005                         'sha1' => wfBaseConvert( '1', 16, 36, 31 ),
1006                         'fileExists' => true
1007                 ), $this->db->timestamp( '20010115123500' ), $user );
1008
1009                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
1010                 # again, note that size/width/height below are ignored; see above.
1011                 $image->recordUpload2( '', 'Upload of some lame thumbnail', 'Some lame thumbnail', array(
1012                         'size' => 22589,
1013                         'width' => 135,
1014                         'height' => 135,
1015                         'bits' => 8,
1016                         'media_type' => MEDIATYPE_BITMAP,
1017                         'mime' => 'image/png',
1018                         'metadata' => serialize( array() ),
1019                         'sha1' => wfBaseConvert( '2', 16, 36, 31 ),
1020                         'fileExists' => true
1021                 ), $this->db->timestamp( '20130225203040' ), $user );
1022
1023                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
1024                 $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', array(
1025                                 'size'        => 12345,
1026                                 'width'       => 240,
1027                                 'height'      => 180,
1028                                 'bits'        => 0,
1029                                 'media_type'  => MEDIATYPE_DRAWING,
1030                                 'mime'        => 'image/svg+xml',
1031                                 'metadata'    => serialize( array() ),
1032                                 'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
1033                                 'fileExists'  => true
1034                 ), $this->db->timestamp( '20010115123500' ), $user );
1035
1036                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
1037                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
1038                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', array(
1039                         'size' => 12345,
1040                         'width' => 320,
1041                         'height' => 240,
1042                         'bits' => 24,
1043                         'media_type' => MEDIATYPE_BITMAP,
1044                         'mime' => 'image/jpeg',
1045                         'metadata' => serialize( array() ),
1046                         'sha1' => wfBaseConvert( '3', 16, 36, 31 ),
1047                         'fileExists' => true
1048                 ), $this->db->timestamp( '20010115123500' ), $user );
1049
1050                 # A DjVu file
1051                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'LoremIpsum.djvu' ) );
1052                 $image->recordUpload2( '', 'Upload a DjVu', 'A DjVu', array(
1053                         'size' => 3249,
1054                         'width' => 2480,
1055                         'height' => 3508,
1056                         'bits' => 0,
1057                         'media_type' => MEDIATYPE_BITMAP,
1058                         'mime' => 'image/vnd.djvu',
1059                         'metadata' => '<?xml version="1.0" ?>
1060 <!DOCTYPE DjVuXML PUBLIC "-//W3C//DTD DjVuXML 1.1//EN" "pubtext/DjVuXML-s.dtd">
1061 <DjVuXML>
1062 <HEAD></HEAD>
1063 <BODY><OBJECT height="3508" width="2480">
1064 <PARAM name="DPI" value="300" />
1065 <PARAM name="GAMMA" value="2.2" />
1066 </OBJECT>
1067 <OBJECT height="3508" width="2480">
1068 <PARAM name="DPI" value="300" />
1069 <PARAM name="GAMMA" value="2.2" />
1070 </OBJECT>
1071 <OBJECT height="3508" width="2480">
1072 <PARAM name="DPI" value="300" />
1073 <PARAM name="GAMMA" value="2.2" />
1074 </OBJECT>
1075 <OBJECT height="3508" width="2480">
1076 <PARAM name="DPI" value="300" />
1077 <PARAM name="GAMMA" value="2.2" />
1078 </OBJECT>
1079 <OBJECT height="3508" width="2480">
1080 <PARAM name="DPI" value="300" />
1081 <PARAM name="GAMMA" value="2.2" />
1082 </OBJECT>
1083 </BODY>
1084 </DjVuXML>',
1085                         'sha1' => wfBaseConvert( '', 16, 36, 31 ),
1086                         'fileExists' => true
1087                 ), $this->db->timestamp( '20010115123600' ), $user );
1088         }
1089
1090         public function teardownDatabase() {
1091                 if ( !$this->databaseSetupDone ) {
1092                         $this->teardownGlobals();
1093                         return;
1094                 }
1095                 $this->teardownUploadDir( $this->uploadDir );
1096
1097                 $this->dbClone->destroy();
1098                 $this->databaseSetupDone = false;
1099
1100                 if ( $this->useTemporaryTables ) {
1101                         if ( $this->db->getType() == 'sqlite' ) {
1102                                 # Under SQLite the searchindex table is virtual and need
1103                                 # to be explicitly destroyed. See bug 29912
1104                                 # See also MediaWikiTestCase::destroyDB()
1105                                 wfDebug( __METHOD__ . " explicitly destroying sqlite virtual table parsertest_searchindex\n" );
1106                                 $this->db->query( "DROP TABLE `parsertest_searchindex`" );
1107                         }
1108                         # Don't need to do anything
1109                         $this->teardownGlobals();
1110                         return;
1111                 }
1112
1113                 $tables = $this->listTables();
1114
1115                 foreach ( $tables as $table ) {
1116                         if ( $this->db->getType() == 'oracle' ) {
1117                                 $this->db->query( "DROP TABLE pt_$table DROP CONSTRAINTS" );
1118                         } else {
1119                                 $this->db->query( "DROP TABLE `parsertest_$table`" );
1120                         }
1121                 }
1122
1123                 if ( $this->db->getType() == 'oracle' ) {
1124                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1125                 }
1126
1127                 $this->teardownGlobals();
1128         }
1129
1130         /**
1131          * Create a dummy uploads directory which will contain a couple
1132          * of files in order to pass existence tests.
1133          *
1134          * @return string The directory
1135          */
1136         private function setupUploadDir() {
1137                 global $IP;
1138
1139                 if ( $this->keepUploads ) {
1140                         $dir = wfTempDir() . '/mwParser-images';
1141
1142                         if ( is_dir( $dir ) ) {
1143                                 return $dir;
1144                         }
1145                 } else {
1146                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
1147                 }
1148
1149                 // wfDebug( "Creating upload directory $dir\n" );
1150                 if ( file_exists( $dir ) ) {
1151                         wfDebug( "Already exists!\n" );
1152                         return $dir;
1153                 }
1154
1155                 wfMkdirParents( $dir . '/3/3a', null, __METHOD__ );
1156                 copy( "$IP/tests/phpunit/data/parser/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
1157                 wfMkdirParents( $dir . '/e/ea', null, __METHOD__ );
1158                 copy( "$IP/tests/phpunit/data/parser/wiki.png", "$dir/e/ea/Thumb.png" );
1159                 wfMkdirParents( $dir . '/0/09', null, __METHOD__ );
1160                 copy( "$IP/tests/phpunit/data/parser/headbg.jpg", "$dir/0/09/Bad.jpg" );
1161                 wfMkdirParents( $dir . '/f/ff', null, __METHOD__ );
1162                 file_put_contents( "$dir/f/ff/Foobar.svg",
1163                         '<?xml version="1.0" encoding="utf-8"?>' .
1164                         '<svg xmlns="http://www.w3.org/2000/svg"' .
1165                         ' version="1.1" width="240" height="180"/>' );
1166                 wfMkdirParents( $dir . '/5/5f', null, __METHOD__ );
1167                 copy( "$IP/tests/phpunit/data/parser/LoremIpsum.djvu", "$dir/5/5f/LoremIpsum.djvu" );
1168
1169                 return $dir;
1170         }
1171
1172         /**
1173          * Restore default values and perform any necessary clean-up
1174          * after each test runs.
1175          */
1176         private function teardownGlobals() {
1177                 RepoGroup::destroySingleton();
1178                 FileBackendGroup::destroySingleton();
1179                 LockManagerGroup::destroySingletons();
1180                 LinkCache::singleton()->clear();
1181
1182                 foreach ( $this->savedGlobals as $var => $val ) {
1183                         $GLOBALS[$var] = $val;
1184                 }
1185         }
1186
1187         /**
1188          * Remove the dummy uploads directory
1189          * @param string $dir
1190          */
1191         private function teardownUploadDir( $dir ) {
1192                 if ( $this->keepUploads ) {
1193                         return;
1194                 }
1195
1196                 // delete the files first, then the dirs.
1197                 self::deleteFiles(
1198                         array(
1199                                 "$dir/3/3a/Foobar.jpg",
1200                                 "$dir/thumb/3/3a/Foobar.jpg/1000px-Foobar.jpg",
1201                                 "$dir/thumb/3/3a/Foobar.jpg/100px-Foobar.jpg",
1202                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
1203                                 "$dir/thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
1204                                 "$dir/thumb/3/3a/Foobar.jpg/137px-Foobar.jpg",
1205                                 "$dir/thumb/3/3a/Foobar.jpg/1500px-Foobar.jpg",
1206                                 "$dir/thumb/3/3a/Foobar.jpg/177px-Foobar.jpg",
1207                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
1208                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
1209                                 "$dir/thumb/3/3a/Foobar.jpg/206px-Foobar.jpg",
1210                                 "$dir/thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
1211                                 "$dir/thumb/3/3a/Foobar.jpg/220px-Foobar.jpg",
1212                                 "$dir/thumb/3/3a/Foobar.jpg/265px-Foobar.jpg",
1213                                 "$dir/thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
1214                                 "$dir/thumb/3/3a/Foobar.jpg/274px-Foobar.jpg",
1215                                 "$dir/thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
1216                                 "$dir/thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
1217                                 "$dir/thumb/3/3a/Foobar.jpg/330px-Foobar.jpg",
1218                                 "$dir/thumb/3/3a/Foobar.jpg/353px-Foobar.jpg",
1219                                 "$dir/thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
1220                                 "$dir/thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
1221                                 "$dir/thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
1222                                 "$dir/thumb/3/3a/Foobar.jpg/440px-Foobar.jpg",
1223                                 "$dir/thumb/3/3a/Foobar.jpg/442px-Foobar.jpg",
1224                                 "$dir/thumb/3/3a/Foobar.jpg/450px-Foobar.jpg",
1225                                 "$dir/thumb/3/3a/Foobar.jpg/50px-Foobar.jpg",
1226                                 "$dir/thumb/3/3a/Foobar.jpg/600px-Foobar.jpg",
1227                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
1228                                 "$dir/thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
1229                                 "$dir/thumb/3/3a/Foobar.jpg/75px-Foobar.jpg",
1230                                 "$dir/thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
1231
1232                                 "$dir/e/ea/Thumb.png",
1233
1234                                 "$dir/0/09/Bad.jpg",
1235
1236                                 "$dir/5/5f/LoremIpsum.djvu",
1237                                 "$dir/thumb/5/5f/LoremIpsum.djvu/page2-2480px-LoremIpsum.djvu.jpg",
1238                                 "$dir/thumb/5/5f/LoremIpsum.djvu/page2-3720px-LoremIpsum.djvu.jpg",
1239                                 "$dir/thumb/5/5f/LoremIpsum.djvu/page2-4960px-LoremIpsum.djvu.jpg",
1240
1241                                 "$dir/f/ff/Foobar.svg",
1242                                 "$dir/thumb/f/ff/Foobar.svg/180px-Foobar.svg.png",
1243                                 "$dir/thumb/f/ff/Foobar.svg/2000px-Foobar.svg.png",
1244                                 "$dir/thumb/f/ff/Foobar.svg/270px-Foobar.svg.png",
1245                                 "$dir/thumb/f/ff/Foobar.svg/3000px-Foobar.svg.png",
1246                                 "$dir/thumb/f/ff/Foobar.svg/360px-Foobar.svg.png",
1247                                 "$dir/thumb/f/ff/Foobar.svg/4000px-Foobar.svg.png",
1248                                 "$dir/thumb/f/ff/Foobar.svg/langde-180px-Foobar.svg.png",
1249                                 "$dir/thumb/f/ff/Foobar.svg/langde-270px-Foobar.svg.png",
1250                                 "$dir/thumb/f/ff/Foobar.svg/langde-360px-Foobar.svg.png",
1251
1252                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
1253                         )
1254                 );
1255
1256                 self::deleteDirs(
1257                         array(
1258                                 "$dir/3/3a",
1259                                 "$dir/3",
1260                                 "$dir/thumb/3/3a/Foobar.jpg",
1261                                 "$dir/thumb/3/3a",
1262                                 "$dir/thumb/3",
1263                                 "$dir/e/ea",
1264                                 "$dir/e",
1265                                 "$dir/f/ff/",
1266                                 "$dir/f/",
1267                                 "$dir/thumb/f/ff/Foobar.svg",
1268                                 "$dir/thumb/f/ff/",
1269                                 "$dir/thumb/f/",
1270                                 "$dir/0/09/",
1271                                 "$dir/0/",
1272                                 "$dir/5/5f",
1273                                 "$dir/5",
1274                                 "$dir/thumb/5/5f/LoremIpsum.djvu",
1275                                 "$dir/thumb/5/5f",
1276                                 "$dir/thumb/5",
1277                                 "$dir/thumb",
1278                                 "$dir/math/f/a/5",
1279                                 "$dir/math/f/a",
1280                                 "$dir/math/f",
1281                                 "$dir/math",
1282                                 "$dir",
1283                         )
1284                 );
1285         }
1286
1287         /**
1288          * Delete the specified files, if they exist.
1289          * @param array $files Full paths to files to delete.
1290          */
1291         private static function deleteFiles( $files ) {
1292                 foreach ( $files as $file ) {
1293                         if ( file_exists( $file ) ) {
1294                                 unlink( $file );
1295                         }
1296                 }
1297         }
1298
1299         /**
1300          * Delete the specified directories, if they exist. Must be empty.
1301          * @param array $dirs Full paths to directories to delete.
1302          */
1303         private static function deleteDirs( $dirs ) {
1304                 foreach ( $dirs as $dir ) {
1305                         if ( is_dir( $dir ) ) {
1306                                 rmdir( $dir );
1307                         }
1308                 }
1309         }
1310
1311         /**
1312          * "Running test $desc..."
1313          * @param string $desc
1314          */
1315         protected function showTesting( $desc ) {
1316                 print "Running test $desc... ";
1317         }
1318
1319         /**
1320          * Print a happy success message.
1321          *
1322          * Refactored in 1.22 to use ParserTestResult
1323          *
1324          * @param ParserTestResult $testResult
1325          * @return bool
1326          */
1327         protected function showSuccess( ParserTestResult $testResult ) {
1328                 if ( $this->showProgress ) {
1329                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
1330                 }
1331
1332                 return true;
1333         }
1334
1335         /**
1336          * Print a failure message and provide some explanatory output
1337          * about what went wrong if so configured.
1338          *
1339          * Refactored in 1.22 to use ParserTestResult
1340          *
1341          * @param ParserTestResult $testResult
1342          * @return bool
1343          */
1344         protected function showFailure( ParserTestResult $testResult ) {
1345                 if ( $this->showFailure ) {
1346                         if ( !$this->showProgress ) {
1347                                 # In quiet mode we didn't show the 'Testing' message before the
1348                                 # test, in case it succeeded. Show it now:
1349                                 $this->showTesting( $testResult->description );
1350                         }
1351
1352                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
1353
1354                         if ( $this->showOutput ) {
1355                                 print "--- Expected ---\n{$testResult->expected}\n";
1356                                 print "--- Actual ---\n{$testResult->actual}\n";
1357                         }
1358
1359                         if ( $this->showDiffs ) {
1360                                 print $this->quickDiff( $testResult->expected, $testResult->actual );
1361                                 if ( !$this->wellFormed( $testResult->actual ) ) {
1362                                         print "XML error: $this->mXmlError\n";
1363                                 }
1364                         }
1365                 }
1366
1367                 return false;
1368         }
1369
1370         /**
1371          * Print a skipped message.
1372          *
1373          * @return boolean
1374          */
1375         protected function showSkipped() {
1376                 if ( $this->showProgress ) {
1377                         print $this->term->color( '1;33' ) . 'SKIPPED' . $this->term->reset() . "\n";
1378                 }
1379
1380                 return true;
1381         }
1382
1383         /**
1384          * Run given strings through a diff and return the (colorized) output.
1385          * Requires writable /tmp directory and a 'diff' command in the PATH.
1386          *
1387          * @param string $input
1388          * @param string $output
1389          * @param string $inFileTail Tailing for the input file name
1390          * @param string $outFileTail Tailing for the output file name
1391          * @return string
1392          */
1393         protected function quickDiff( $input, $output,
1394                 $inFileTail = 'expected', $outFileTail = 'actual'
1395         ) {
1396                 # Windows, or at least the fc utility, is retarded
1397                 $slash = wfIsWindows() ? '\\' : '/';
1398                 $prefix = wfTempDir() . "{$slash}mwParser-" . mt_rand();
1399
1400                 $infile = "$prefix-$inFileTail";
1401                 $this->dumpToFile( $input, $infile );
1402
1403                 $outfile = "$prefix-$outFileTail";
1404                 $this->dumpToFile( $output, $outfile );
1405
1406                 $shellInfile = wfEscapeShellArg( $infile );
1407                 $shellOutfile = wfEscapeShellArg( $outfile );
1408
1409                 global $wgDiff3;
1410                 // we assume that people with diff3 also have usual diff
1411                 $shellCommand = ( wfIsWindows() && !$wgDiff3 ) ? 'fc' : 'diff -au';
1412
1413                 $diff = wfShellExec( "$shellCommand $shellInfile $shellOutfile" );
1414
1415                 unlink( $infile );
1416                 unlink( $outfile );
1417
1418                 return $this->colorDiff( $diff );
1419         }
1420
1421         /**
1422          * Write the given string to a file, adding a final newline.
1423          *
1424          * @param string $data
1425          * @param string $filename
1426          */
1427         private function dumpToFile( $data, $filename ) {
1428                 $file = fopen( $filename, "wt" );
1429                 fwrite( $file, $data . "\n" );
1430                 fclose( $file );
1431         }
1432
1433         /**
1434          * Colorize unified diff output if set for ANSI color output.
1435          * Subtractions are colored blue, additions red.
1436          *
1437          * @param string $text
1438          * @return string
1439          */
1440         protected function colorDiff( $text ) {
1441                 return preg_replace(
1442                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1443                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1444                                 $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1445                         $text );
1446         }
1447
1448         /**
1449          * Show "Reading tests from ..."
1450          *
1451          * @param string $path
1452          */
1453         public function showRunFile( $path ) {
1454                 print $this->term->color( 1 ) .
1455                         "Reading tests from \"$path\"..." .
1456                         $this->term->reset() .
1457                         "\n";
1458         }
1459
1460         /**
1461          * Insert a temporary test article
1462          * @param string $name The title, including any prefix
1463          * @param string $text The article text
1464          * @param int $line The input line number, for reporting errors
1465          * @param bool $ignoreDuplicate Whether to silently ignore duplicate pages
1466          */
1467         public static function addArticle( $name, $text, $line = 'unknown', $ignoreDuplicate = '' ) {
1468                 global $wgCapitalLinks;
1469
1470                 $oldCapitalLinks = $wgCapitalLinks;
1471                 $wgCapitalLinks = true; // We only need this from SetupGlobals() See r70917#c8637
1472
1473                 $text = self::chomp( $text );
1474                 $name = self::chomp( $name );
1475
1476                 $title = Title::newFromText( $name );
1477
1478                 if ( is_null( $title ) ) {
1479                         throw new MWException( "invalid title '$name' at line $line\n" );
1480                 }
1481
1482                 $page = WikiPage::factory( $title );
1483                 $page->loadPageData( 'fromdbmaster' );
1484
1485                 if ( $page->exists() ) {
1486                         if ( $ignoreDuplicate == 'ignoreduplicate' ) {
1487                                 return;
1488                         } else {
1489                                 throw new MWException( "duplicate article '$name' at line $line\n" );
1490                         }
1491                 }
1492
1493                 $page->doEditContent( ContentHandler::makeContent( $text, $title ), '', EDIT_NEW );
1494
1495                 $wgCapitalLinks = $oldCapitalLinks;
1496         }
1497
1498         /**
1499          * Steal a callback function from the primary parser, save it for
1500          * application to our scary parser. If the hook is not installed,
1501          * abort processing of this file.
1502          *
1503          * @param string $name
1504          * @return bool True if tag hook is present
1505          */
1506         public function requireHook( $name ) {
1507                 global $wgParser;
1508
1509                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1510
1511                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1512                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1513                 } else {
1514                         echo "   This test suite requires the '$name' hook extension, skipping.\n";
1515                         return false;
1516                 }
1517
1518                 return true;
1519         }
1520
1521         /**
1522          * Steal a callback function from the primary parser, save it for
1523          * application to our scary parser. If the hook is not installed,
1524          * abort processing of this file.
1525          *
1526          * @param string $name
1527          * @return bool True if function hook is present
1528          */
1529         public function requireFunctionHook( $name ) {
1530                 global $wgParser;
1531
1532                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1533
1534                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1535                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1536                 } else {
1537                         echo "   This test suite requires the '$name' function hook extension, skipping.\n";
1538                         return false;
1539                 }
1540
1541                 return true;
1542         }
1543
1544         /**
1545          * Steal a callback function from the primary parser, save it for
1546          * application to our scary parser. If the hook is not installed,
1547          * abort processing of this file.
1548          *
1549          * @param string $name
1550          * @return bool True if function hook is present
1551          */
1552         public function requireTransparentHook( $name ) {
1553                 global $wgParser;
1554
1555                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1556
1557                 if ( isset( $wgParser->mTransparentTagHooks[$name] ) ) {
1558                         $this->transparentHooks[$name] = $wgParser->mTransparentTagHooks[$name];
1559                 } else {
1560                         echo "   This test suite requires the '$name' transparent hook extension, skipping.\n";
1561                         return false;
1562                 }
1563
1564                 return true;
1565         }
1566
1567         /**
1568          * Run the "tidy" command on text if the $wgUseTidy
1569          * global is true
1570          *
1571          * @param string $text The text to tidy
1572          * @return string
1573          */
1574         private function tidy( $text ) {
1575                 global $wgUseTidy;
1576
1577                 if ( $wgUseTidy ) {
1578                         $text = MWTidy::tidy( $text );
1579                 }
1580
1581                 return $text;
1582         }
1583
1584         private function wellFormed( $text ) {
1585                 $html =
1586                         Sanitizer::hackDocType() .
1587                                 '<html>' .
1588                                 $text .
1589                                 '</html>';
1590
1591                 $parser = xml_parser_create( "UTF-8" );
1592
1593                 # case folding violates XML standard, turn it off
1594                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1595
1596                 if ( !xml_parse( $parser, $html, true ) ) {
1597                         $err = xml_error_string( xml_get_error_code( $parser ) );
1598                         $position = xml_get_current_byte_index( $parser );
1599                         $fragment = $this->extractFragment( $html, $position );
1600                         $this->mXmlError = "$err at byte $position:\n$fragment";
1601                         xml_parser_free( $parser );
1602
1603                         return false;
1604                 }
1605
1606                 xml_parser_free( $parser );
1607
1608                 return true;
1609         }
1610
1611         private function extractFragment( $text, $position ) {
1612                 $start = max( 0, $position - 10 );
1613                 $before = $position - $start;
1614                 $fragment = '...' .
1615                         $this->term->color( 34 ) .
1616                         substr( $text, $start, $before ) .
1617                         $this->term->color( 0 ) .
1618                         $this->term->color( 31 ) .
1619                         $this->term->color( 1 ) .
1620                         substr( $text, $position, 1 ) .
1621                         $this->term->color( 0 ) .
1622                         $this->term->color( 34 ) .
1623                         substr( $text, $position + 1, 9 ) .
1624                         $this->term->color( 0 ) .
1625                         '...';
1626                 $display = str_replace( "\n", ' ', $fragment );
1627                 $caret = '   ' .
1628                         str_repeat( ' ', $before ) .
1629                         $this->term->color( 31 ) .
1630                         '^' .
1631                         $this->term->color( 0 );
1632
1633                 return "$display\n$caret";
1634         }
1635
1636         static function getFakeTimestamp( &$parser, &$ts ) {
1637                 $ts = 123; //parsed as '1970-01-01T00:02:03Z'
1638                 return true;
1639         }
1640 }