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 use MediaWiki\MediaWikiServices;
  31
  32 /**
  33  * @ingroup Testing
  34  */
  35 class ParserTest {
  36         /**
  37          * @var bool $color whereas output should be colorized
  38          */
  39         private $color;
  40
  41         /**
  42          * @var bool $showOutput Show test output
  43          */
  44         private $showOutput;
  45
  46         /**
  47          * @var bool $useTemporaryTables Use temporary tables for the temporary database
  48          */
  49         private $useTemporaryTables = true;
  50
  51         /**
  52          * @var bool $databaseSetupDone True if the database has been set up
  53          */
  54         private $databaseSetupDone = false;
  55
  56         /**
  57          * Our connection to the database
  58          * @var DatabaseBase
  59          */
  60         private $db;
  61
  62         /**
  63          * Database clone helper
  64          * @var CloneDatabase
  65          */
  66         private $dbClone;
  67
  68         /**
  69          * @var DjVuSupport
  70          */
  71         private $djVuSupport;
  72
  73         /**
  74          * @var TidySupport
  75          */
  76         private $tidySupport;
  77
  78         private $maxFuzzTestLength = 300;
  79         private $fuzzSeed = 0;
  80         private $memoryLimit = 50;
  81         private $uploadDir = null;
  82
  83         public $regex = "";
  84         private $savedGlobals = [];
  85
  86         /**
  87          * Sets terminal colorization and diff/quick modes depending on OS and
  88          * command-line options (--color and --quick).
  89          * @param array $options
  90          */
  91         public function __construct( $options = [] ) {
  92                 # Only colorize output if stdout is a terminal.
  93                 $this->color = !wfIsWindows() && Maintenance::posix_isatty( 1 );
  94
  95                 if ( isset( $options['color'] ) ) {
  96                         switch ( $options['color'] ) {
  97                                 case 'no':
  98                                         $this->color = false;
  99                                         break;
 100                                 case 'yes':
 101                                 default:
 102                                         $this->color = true;
 103                                         break;
 104                         }
 105                 }
 106
 107                 $this->term = $this->color
 108                         ? new AnsiTermColorer()
 109                         : new DummyTermColorer();
 110
 111                 $this->showDiffs = !isset( $options['quick'] );
 112                 $this->showProgress = !isset( $options['quiet'] );
 113                 $this->showFailure = !(
 114                         isset( $options['quiet'] )
 115                                 && ( isset( $options['record'] )
 116                                 || isset( $options['compare'] ) ) ); // redundant output
 117
 118                 $this->showOutput = isset( $options['show-output'] );
 119
 120                 if ( isset( $options['filter'] ) ) {
 121                         $options['regex'] = $options['filter'];
 122                 }
 123
 124                 if ( isset( $options['regex'] ) ) {
 125                         if ( isset( $options['record'] ) ) {
 126                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
 127                                 unset( $options['record'] );
 128                         }
 129                         $this->regex = $options['regex'];
 130                 } else {
 131                         # Matches anything
 132                         $this->regex = '';
 133                 }
 134
 135                 $this->setupRecorder( $options );
 136                 $this->keepUploads = isset( $options['keep-uploads'] );
 137
 138                 if ( $this->keepUploads ) {
 139                         $this->uploadDir = wfTempDir() . '/mwParser-images';
 140                 } else {
 141                         $this->uploadDir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 142                 }
 143
 144                 if ( isset( $options['seed'] ) ) {
 145                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
 146                 }
 147
 148                 $this->runDisabled = isset( $options['run-disabled'] );
 149                 $this->runParsoid = isset( $options['run-parsoid'] );
 150
 151                 $this->djVuSupport = new DjVuSupport();
 152                 $this->tidySupport = new TidySupport();
 153                 if ( !$this->tidySupport->isEnabled() ) {
 154                         echo "Warning: tidy is not installed, skipping some tests\n";
 155                 }
 156
 157                 if ( !extension_loaded( 'gd' ) ) {
 158                         echo "Warning: GD extension is not present, thumbnailing tests will probably fail\n";
 159                 }
 160
 161                 $this->hooks = [];
 162                 $this->functionHooks = [];
 163                 $this->transparentHooks = [];
 164                 $this->setUp();
 165         }
 166
 167         function setUp() {
 168                 global $wgParser, $wgParserConf, $IP, $messageMemc, $wgMemc,
 169                         $wgUser, $wgLang, $wgOut, $wgRequest, $wgStyleDirectory,
 170                         $wgExtraNamespaces, $wgNamespaceAliases, $wgNamespaceProtection, $wgLocalFileRepo,
 171                         $wgExtraInterlanguageLinkPrefixes, $wgLocalInterwikis,
 172                         $parserMemc, $wgThumbnailScriptPath, $wgScriptPath, $wgResourceBasePath,
 173                         $wgArticlePath, $wgScript, $wgStylePath, $wgExtensionAssetsPath,
 174                         $wgMainCacheType, $wgMessageCacheType, $wgParserCacheType, $wgLockManagers;
 175
 176                 $wgScriptPath = '';
 177                 $wgScript = '/index.php';
 178                 $wgStylePath = '/skins';
 179                 $wgResourceBasePath = '';
 180                 $wgExtensionAssetsPath = '/extensions';
 181                 $wgArticlePath = '/wiki/$1';
 182                 $wgThumbnailScriptPath = false;
 183                 $wgLockManagers = [ [
 184                         'name' => 'fsLockManager',
 185                         'class' => 'FSLockManager',
 186                         'lockDirectory' => $this->uploadDir . '/lockdir',
 187                 ], [
 188                         'name' => 'nullLockManager',
 189                         'class' => 'NullLockManager',
 190                 ] ];
 191                 $wgLocalFileRepo = [
 192                         'class' => 'LocalRepo',
 193                         'name' => 'local',
 194                         'url' => 'http://example.com/images',
 195                         'hashLevels' => 2,
 196                         'transformVia404' => false,
 197                         'backend' => new FSFileBackend( [
 198                                 'name' => 'local-backend',
 199                                 'wikiId' => wfWikiID(),
 200                                 'containerPaths' => [
 201                                         'local-public' => $this->uploadDir . '/public',
 202                                         'local-thumb' => $this->uploadDir . '/thumb',
 203                                         'local-temp' => $this->uploadDir . '/temp',
 204                                         'local-deleted' => $this->uploadDir . '/deleted',
 205                                 ]
 206                         ] )
 207                 ];
 208                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
 209                 $wgNamespaceAliases['Image'] = NS_FILE;
 210                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 211                 # add a namespace shadowing a interwiki link, to test
 212                 # proper precedence when resolving links. (bug 51680)
 213                 $wgExtraNamespaces[100] = 'MemoryAlpha';
 214                 $wgExtraNamespaces[101] = 'MemoryAlpha talk';
 215
 216                 // XXX: tests won't run without this (for CACHE_DB)
 217                 if ( $wgMainCacheType === CACHE_DB ) {
 218                         $wgMainCacheType = CACHE_NONE;
 219                 }
 220                 if ( $wgMessageCacheType === CACHE_DB ) {
 221                         $wgMessageCacheType = CACHE_NONE;
 222                 }
 223                 if ( $wgParserCacheType === CACHE_DB ) {
 224                         $wgParserCacheType = CACHE_NONE;
 225                 }
 226
 227                 DeferredUpdates::clearPendingUpdates();
 228                 $wgMemc = wfGetMainCache(); // checks $wgMainCacheType
 229                 $messageMemc = wfGetMessageCacheStorage();
 230                 $parserMemc = wfGetParserCacheStorage();
 231
 232                 RequestContext::resetMain();
 233                 $context = new RequestContext;
 234                 $wgUser = new User;
 235                 $wgLang = $context->getLanguage();
 236                 $wgOut = $context->getOutput();
 237                 $wgRequest = $context->getRequest();
 238                 $wgParser = new StubObject( 'wgParser', $wgParserConf['class'], [ $wgParserConf ] );
 239
 240                 if ( $wgStyleDirectory === false ) {
 241                         $wgStyleDirectory = "$IP/skins";
 242                 }
 243
 244                 self::setupInterwikis();
 245                 $wgLocalInterwikis = [ 'local', 'mi' ];
 246                 // "extra language links"
 247                 // see https://gerrit.wikimedia.org/r/111390
 248                 array_push( $wgExtraInterlanguageLinkPrefixes, 'mul' );
 249
 250                 // Reset namespace cache
 251                 MWNamespace::getCanonicalNamespaces( true );
 252                 Language::factory( 'en' )->resetNamespaces();
 253         }
 254
 255         /**
 256          * Insert hardcoded interwiki in the lookup table.
 257          *
 258          * This function insert a set of well known interwikis that are used in
 259          * the parser tests. They can be considered has fixtures are injected in
 260          * the interwiki cache by using the 'InterwikiLoadPrefix' hook.
 261          * Since we are not interested in looking up interwikis in the database,
 262          * the hook completely replace the existing mechanism (hook returns false).
 263          */
 264         public static function setupInterwikis() {
 265                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 266                 # for testing inter-language links
 267                 Hooks::register( 'InterwikiLoadPrefix', function ( $prefix, &$iwData ) {
 268                         static $testInterwikis = [
 269                                 'local' => [
 270                                         'iw_url' => 'http://doesnt.matter.org/$1',
 271                                         'iw_api' => '',
 272                                         'iw_wikiid' => '',
 273                                         'iw_local' => 0 ],
 274                                 'wikipedia' => [
 275                                         'iw_url' => 'http://en.wikipedia.org/wiki/$1',
 276                                         'iw_api' => '',
 277                                         'iw_wikiid' => '',
 278                                         'iw_local' => 0 ],
 279                                 'meatball' => [
 280                                         'iw_url' => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 281                                         'iw_api' => '',
 282                                         'iw_wikiid' => '',
 283                                         'iw_local' => 0 ],
 284                                 'memoryalpha' => [
 285                                         'iw_url' => 'http://www.memory-alpha.org/en/index.php/$1',
 286                                         'iw_api' => '',
 287                                         'iw_wikiid' => '',
 288                                         'iw_local' => 0 ],
 289                                 'zh' => [
 290                                         'iw_url' => 'http://zh.wikipedia.org/wiki/$1',
 291                                         'iw_api' => '',
 292                                         'iw_wikiid' => '',
 293                                         'iw_local' => 1 ],
 294                                 'es' => [
 295                                         'iw_url' => 'http://es.wikipedia.org/wiki/$1',
 296                                         'iw_api' => '',
 297                                         'iw_wikiid' => '',
 298                                         'iw_local' => 1 ],
 299                                 'fr' => [
 300                                         'iw_url' => 'http://fr.wikipedia.org/wiki/$1',
 301                                         'iw_api' => '',
 302                                         'iw_wikiid' => '',
 303                                         'iw_local' => 1 ],
 304                                 'ru' => [
 305                                         'iw_url' => 'http://ru.wikipedia.org/wiki/$1',
 306                                         'iw_api' => '',
 307                                         'iw_wikiid' => '',
 308                                         'iw_local' => 1 ],
 309                                 'mi' => [
 310                                         'iw_url' => 'http://mi.wikipedia.org/wiki/$1',
 311                                         'iw_api' => '',
 312                                         'iw_wikiid' => '',
 313                                         'iw_local' => 1 ],
 314                                 'mul' => [
 315                                         'iw_url' => 'http://wikisource.org/wiki/$1',
 316                                         'iw_api' => '',
 317                                         'iw_wikiid' => '',
 318                                         'iw_local' => 1 ],
 319                         ];
 320                         if ( array_key_exists( $prefix, $testInterwikis ) ) {
 321                                 $iwData = $testInterwikis[$prefix];
 322                         }
 323
 324                         // We only want to rely on the above fixtures
 325                         return false;
 326                 } );// hooks::register
 327         }
 328
 329         /**
 330          * Remove the hardcoded interwiki lookup table.
 331          */
 332         public static function tearDownInterwikis() {
 333                 Hooks::clear( 'InterwikiLoadPrefix' );
 334         }
 335
 336         /**
 337          * Reset the Title-related services that need resetting
 338          * for each test
 339          */
 340         public static function resetTitleServices() {
 341                 $services = MediaWikiServices::getInstance();
 342                 $services->resetServiceForTesting( 'TitleFormatter' );
 343                 $services->resetServiceForTesting( 'TitleParser' );
 344                 $services->resetServiceForTesting( '_MediaWikiTitleCodec' );
 345
 346         }
 347
 348         public function setupRecorder( $options ) {
 349                 if ( isset( $options['record'] ) ) {
 350                         $this->recorder = new DbTestRecorder( $this );
 351                         $this->recorder->version = isset( $options['setversion'] ) ?
 352                                 $options['setversion'] : SpecialVersion::getVersion();
 353                 } elseif ( isset( $options['compare'] ) ) {
 354                         $this->recorder = new DbTestPreviewer( $this );
 355                 } else {
 356                         $this->recorder = new TestRecorder( $this );
 357                 }
 358         }
 359
 360         /**
 361          * Remove last character if it is a newline
 362          * @group utility
 363          * @param string $s
 364          * @return string
 365          */
 366         public static function chomp( $s ) {
 367                 if ( substr( $s, -1 ) === "\n" ) {
 368                         return substr( $s, 0, -1 );
 369                 } else {
 370                         return $s;
 371                 }
 372         }
 373
 374         /**
 375          * Run a fuzz test series
 376          * Draw input from a set of test files
 377          * @param array $filenames
 378          */
 379         function fuzzTest( $filenames ) {
 380                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
 381                 $dict = $this->getFuzzInput( $filenames );
 382                 $dictSize = strlen( $dict );
 383                 $logMaxLength = log( $this->maxFuzzTestLength );
 384                 $this->setupDatabase();
 385                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 386
 387                 $numTotal = 0;
 388                 $numSuccess = 0;
 389                 $user = new User;
 390                 $opts = ParserOptions::newFromUser( $user );
 391                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 392
 393                 while ( true ) {
 394                         // Generate test input
 395                         mt_srand( ++$this->fuzzSeed );
 396                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 397                         $input = '';
 398
 399                         while ( strlen( $input ) < $totalLength ) {
 400                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 401                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 402                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 403                                 $input .= substr( $dict, $offset, $hairLength );
 404                         }
 405
 406                         $this->setupGlobals();
 407                         $parser = $this->getParser();
 408
 409                         // Run the test
 410                         try {
 411                                 $parser->parse( $input, $title, $opts );
 412                                 $fail = false;
 413                         } catch ( Exception $exception ) {
 414                                 $fail = true;
 415                         }
 416
 417                         if ( $fail ) {
 418                                 echo "Test failed with seed {$this->fuzzSeed}\n";
 419                                 echo "Input:\n";
 420                                 printf( "string(%d) \"%s\"\n\n", strlen( $input ), $input );
 421                                 echo "$exception\n";
 422                         } else {
 423                                 $numSuccess++;
 424                         }
 425
 426                         $numTotal++;
 427                         $this->teardownGlobals();
 428                         $parser->__destruct();
 429
 430                         if ( $numTotal % 100 == 0 ) {
 431                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 432                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 433                                 if ( $usage > 90 ) {
 434                                         echo "Out of memory:\n";
 435                                         $memStats = $this->getMemoryBreakdown();
 436
 437                                         foreach ( $memStats as $name => $usage ) {
 438                                                 echo "$name: $usage\n";
 439                                         }
 440                                         $this->abort();
 441                                 }
 442                         }
 443                 }
 444         }
 445
 446         /**
 447          * Get an input dictionary from a set of parser test files
 448          * @param array $filenames
 449          * @return string
 450          */
 451         function getFuzzInput( $filenames ) {
 452                 $dict = '';
 453
 454                 foreach ( $filenames as $filename ) {
 455                         $contents = file_get_contents( $filename );
 456                         preg_match_all(
 457                                 '/!!\s*(input|wikitext)\n(.*?)\n!!\s*(result|html|html\/\*|html\/php)/s',
 458                                 $contents,
 459                                 $matches
 460                         );
 461
 462                         foreach ( $matches[1] as $match ) {
 463                                 $dict .= $match . "\n";
 464                         }
 465                 }
 466
 467                 return $dict;
 468         }
 469
 470         /**
 471          * Get a memory usage breakdown
 472          * @return array
 473          */
 474         function getMemoryBreakdown() {
 475                 $memStats = [];
 476
 477                 foreach ( $GLOBALS as $name => $value ) {
 478                         $memStats['$' . $name] = strlen( serialize( $value ) );
 479                 }
 480
 481                 $classes = get_declared_classes();
 482
 483                 foreach ( $classes as $class ) {
 484                         $rc = new ReflectionClass( $class );
 485                         $props = $rc->getStaticProperties();
 486                         $memStats[$class] = strlen( serialize( $props ) );
 487                         $methods = $rc->getMethods();
 488
 489                         foreach ( $methods as $method ) {
 490                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 491                         }
 492                 }
 493
 494                 $functions = get_defined_functions();
 495
 496                 foreach ( $functions['user'] as $function ) {
 497                         $rf = new ReflectionFunction( $function );
 498                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 499                 }
 500
 501                 asort( $memStats );
 502
 503                 return $memStats;
 504         }
 505
 506         function abort() {
 507                 $this->abort();
 508         }
 509
 510         /**
 511          * Run a series of tests listed in the given text files.
 512          * Each test consists of a brief description, wikitext input,
 513          * and the expected HTML output.
 514          *
 515          * Prints status updates on stdout and counts up the total
 516          * number and percentage of passed tests.
 517          *
 518          * @param array $filenames Array of strings
 519          * @return bool True if passed all tests, false if any tests failed.
 520          */
 521         public function runTestsFromFiles( $filenames ) {
 522                 $ok = false;
 523
 524                 // be sure, ParserTest::addArticle has correct language set,
 525                 // so that system messages gets into the right language cache
 526                 $GLOBALS['wgLanguageCode'] = 'en';
 527                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
 528
 529                 $this->recorder->start();
 530                 try {
 531                         $this->setupDatabase();
 532                         $ok = true;
 533
 534                         foreach ( $filenames as $filename ) {
 535                                 echo "Running parser tests from: $filename\n";
 536                                 $tests = new TestFileIterator( $filename, $this );
 537                                 $ok = $this->runTests( $tests ) && $ok;
 538                         }
 539
 540                         $this->teardownDatabase();
 541                         $this->recorder->report();
 542                 } catch ( DBError $e ) {
 543                         echo $e->getMessage();
 544                 }
 545                 $this->recorder->end();
 546
 547                 return $ok;
 548         }
 549
 550         function runTests( $tests ) {
 551                 $ok = true;
 552
 553                 foreach ( $tests as $t ) {
 554                         $result =
 555                                 $this->runTest( $t['test'], $t['input'], $t['result'], $t['options'], $t['config'] );
 556                         $ok = $ok && $result;
 557                         $this->recorder->record( $t['test'], $t['subtest'], $result );
 558                 }
 559
 560                 if ( $this->showProgress ) {
 561                         print "\n";
 562                 }
 563
 564                 return $ok;
 565         }
 566
 567         /**
 568          * Get a Parser object
 569          *
 570          * @param string $preprocessor
 571          * @return Parser
 572          */
 573         function getParser( $preprocessor = null ) {
 574                 global $wgParserConf;
 575
 576                 $class = $wgParserConf['class'];
 577                 $parser = new $class( [ 'preprocessorClass' => $preprocessor ] + $wgParserConf );
 578
 579                 foreach ( $this->hooks as $tag => $callback ) {
 580                         $parser->setHook( $tag, $callback );
 581                 }
 582
 583                 foreach ( $this->functionHooks as $tag => $bits ) {
 584                         list( $callback, $flags ) = $bits;
 585                         $parser->setFunctionHook( $tag, $callback, $flags );
 586                 }
 587
 588                 foreach ( $this->transparentHooks as $tag => $callback ) {
 589                         $parser->setTransparentTagHook( $tag, $callback );
 590                 }
 591
 592                 Hooks::run( 'ParserTestParser', [ &$parser ] );
 593
 594                 return $parser;
 595         }
 596
 597         /**
 598          * Run a given wikitext input through a freshly-constructed wiki parser,
 599          * and compare the output against the expected results.
 600          * Prints status and explanatory messages to stdout.
 601          *
 602          * @param string $desc Test's description
 603          * @param string $input Wikitext to try rendering
 604          * @param string $result Result to output
 605          * @param array $opts Test's options
 606          * @param string $config Overrides for global variables, one per line
 607          * @return bool
 608          */
 609         public function runTest( $desc, $input, $result, $opts, $config ) {
 610                 if ( $this->showProgress ) {
 611                         $this->showTesting( $desc );
 612                 }
 613
 614                 $opts = $this->parseOptions( $opts );
 615                 $context = $this->setupGlobals( $opts, $config );
 616
 617                 $user = $context->getUser();
 618                 $options = ParserOptions::newFromContext( $context );
 619
 620                 if ( isset( $opts['djvu'] ) ) {
 621                         if ( !$this->djVuSupport->isEnabled() ) {
 622                                 return $this->showSkipped();
 623                         }
 624                 }
 625
 626                 if ( isset( $opts['tidy'] ) ) {
 627                         if ( !$this->tidySupport->isEnabled() ) {
 628                                 return $this->showSkipped();
 629                         } else {
 630                                 $options->setTidy( true );
 631                         }
 632                 }
 633
 634                 if ( isset( $opts['title'] ) ) {
 635                         $titleText = $opts['title'];
 636                 } else {
 637                         $titleText = 'Parser test';
 638                 }
 639
 640                 ObjectCache::getMainWANInstance()->clearProcessCache();
 641                 $local = isset( $opts['local'] );
 642                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 643                 $parser = $this->getParser( $preprocessor );
 644                 $title = Title::newFromText( $titleText );
 645
 646                 if ( isset( $opts['pst'] ) ) {
 647                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 648                 } elseif ( isset( $opts['msg'] ) ) {
 649                         $out = $parser->transformMsg( $input, $options, $title );
 650                 } elseif ( isset( $opts['section'] ) ) {
 651                         $section = $opts['section'];
 652                         $out = $parser->getSection( $input, $section );
 653                 } elseif ( isset( $opts['replace'] ) ) {
 654                         $section = $opts['replace'][0];
 655                         $replace = $opts['replace'][1];
 656                         $out = $parser->replaceSection( $input, $section, $replace );
 657                 } elseif ( isset( $opts['comment'] ) ) {
 658                         $out = Linker::formatComment( $input, $title, $local );
 659                 } elseif ( isset( $opts['preload'] ) ) {
 660                         $out = $parser->getPreloadText( $input, $title, $options );
 661                 } else {
 662                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 663                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 664                         $out = $output->getText();
 665                         if ( isset( $opts['tidy'] ) ) {
 666                                 $out = preg_replace( '/\s+$/', '', $out );
 667                         }
 668
 669                         if ( isset( $opts['showtitle'] ) ) {
 670                                 if ( $output->getTitleText() ) {
 671                                         $title = $output->getTitleText();
 672                                 }
 673
 674                                 $out = "$title\n$out";
 675                         }
 676
 677                         if ( isset( $opts['showindicators'] ) ) {
 678                                 $indicators = '';
 679                                 foreach ( $output->getIndicators() as $id => $content ) {
 680                                         $indicators .= "$id=$content\n";
 681                                 }
 682                                 $out = $indicators . $out;
 683                         }
 684
 685                         if ( isset( $opts['ill'] ) ) {
 686                                 $out = implode( ' ', $output->getLanguageLinks() );
 687                         } elseif ( isset( $opts['cat'] ) ) {
 688                                 $outputPage = $context->getOutput();
 689                                 $outputPage->addCategoryLinks( $output->getCategories() );
 690                                 $cats = $outputPage->getCategoryLinks();
 691
 692                                 if ( isset( $cats['normal'] ) ) {
 693                                         $out = implode( ' ', $cats['normal'] );
 694                                 } else {
 695                                         $out = '';
 696                                 }
 697                         }
 698                 }
 699
 700                 $this->teardownGlobals();
 701
 702                 $testResult = new ParserTestResult( $desc );
 703                 $testResult->expected = $result;
 704                 $testResult->actual = $out;
 705
 706                 return $this->showTestResult( $testResult );
 707         }
 708
 709         /**
 710          * Refactored in 1.22 to use ParserTestResult
 711          * @param ParserTestResult $testResult
 712          * @return bool
 713          */
 714         function showTestResult( ParserTestResult $testResult ) {
 715                 if ( $testResult->isSuccess() ) {
 716                         $this->showSuccess( $testResult );
 717                         return true;
 718                 } else {
 719                         $this->showFailure( $testResult );
 720                         return false;
 721                 }
 722         }
 723
 724         /**
 725          * Use a regex to find out the value of an option
 726          * @param string $key Name of option val to retrieve
 727          * @param array $opts Options array to look in
 728          * @param mixed $default Default value returned if not found
 729          * @return mixed
 730          */
 731         private static function getOptionValue( $key, $opts, $default ) {
 732                 $key = strtolower( $key );
 733
 734                 if ( isset( $opts[$key] ) ) {
 735                         return $opts[$key];
 736                 } else {
 737                         return $default;
 738                 }
 739         }
 740
 741         private function parseOptions( $instring ) {
 742                 $opts = [];
 743                 // foo
 744                 // foo=bar
 745                 // foo="bar baz"
 746                 // foo=[[bar baz]]
 747                 // foo=bar,"baz quux"
 748                 // foo={...json...}
 749                 $defs = '(?(DEFINE)
 750                         (?<qstr>                                        # Quoted string
 751                                 "
 752                                 (?:[^\\\\"] | \\\\.)*
 753                                 "
 754                         )
 755                         (?<json>
 756                                 \{              # Open bracket
 757                                 (?:
 758                                         [^"{}] |                                # Not a quoted string or object, or
 759                                         (?&qstr) |                              # A quoted string, or
 760                                         (?&json)                                # A json object (recursively)
 761                                 )*
 762                                 \}              # Close bracket
 763                         )
 764                         (?<value>
 765                                 (?:
 766                                         (?&qstr)                        # Quoted val
 767                                 |
 768                                         \[\[
 769                                                 [^]]*                   # Link target
 770                                         \]\]
 771                                 |
 772                                         [\w-]+                          # Plain word
 773                                 |
 774                                         (?&json)                        # JSON object
 775                                 )
 776                         )
 777                 )';
 778                 $regex = '/' . $defs . '\b
 779                         (?<k>[\w-]+)                            # Key
 780                         \b
 781                         (?:\s*
 782                                 =                                               # First sub-value
 783                                 \s*
 784                                 (?<v>
 785                                         (?&value)
 786                                         (?:\s*
 787                                                 ,                               # Sub-vals 1..N
 788                                                 \s*
 789                                                 (?&value)
 790                                         )*
 791                                 )
 792                         )?
 793                         /x';
 794                 $valueregex = '/' . $defs . '(?&value)/x';
 795
 796                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 797                         foreach ( $matches as $bits ) {
 798                                 $key = strtolower( $bits['k'] );
 799                                 if ( !isset( $bits['v'] ) ) {
 800                                         $opts[$key] = true;
 801                                 } else {
 802                                         preg_match_all( $valueregex, $bits['v'], $vmatches );
 803                                         $opts[$key] = array_map( [ $this, 'cleanupOption' ], $vmatches[0] );
 804                                         if ( count( $opts[$key] ) == 1 ) {
 805                                                 $opts[$key] = $opts[$key][0];
 806                                         }
 807                                 }
 808                         }
 809                 }
 810                 return $opts;
 811         }
 812
 813         private function cleanupOption( $opt ) {
 814                 if ( substr( $opt, 0, 1 ) == '"' ) {
 815                         return stripcslashes( substr( $opt, 1, -1 ) );
 816                 }
 817
 818                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 819                         return substr( $opt, 2, -2 );
 820                 }
 821
 822                 if ( substr( $opt, 0, 1 ) == '{' ) {
 823                         return FormatJson::decode( $opt, true );
 824                 }
 825                 return $opt;
 826         }
 827
 828         /**
 829          * Set up the global variables for a consistent environment for each test.
 830          * Ideally this should replace the global configuration entirely.
 831          * @param string $opts
 832          * @param string $config
 833          * @return RequestContext
 834          */
 835         private function setupGlobals( $opts = '', $config = '' ) {
 836                 global $IP;
 837
 838                 # Find out values for some special options.
 839                 $lang =
 840                         self::getOptionValue( 'language', $opts, 'en' );
 841                 $variant =
 842                         self::getOptionValue( 'variant', $opts, false );
 843                 $maxtoclevel =
 844                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 845                 $linkHolderBatchSize =
 846                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 847
 848                 $settings = [
 849                         'wgServer' => 'http://example.org',
 850                         'wgServerName' => 'example.org',
 851                         'wgScript' => '/index.php',
 852                         'wgScriptPath' => '',
 853                         'wgArticlePath' => '/wiki/$1',
 854                         'wgActionPaths' => [],
 855                         'wgLockManagers' => [ [
 856                                 'name' => 'fsLockManager',
 857                                 'class' => 'FSLockManager',
 858                                 'lockDirectory' => $this->uploadDir . '/lockdir',
 859                         ], [
 860                                 'name' => 'nullLockManager',
 861                                 'class' => 'NullLockManager',
 862                         ] ],
 863                         'wgLocalFileRepo' => [
 864                                 'class' => 'LocalRepo',
 865                                 'name' => 'local',
 866                                 'url' => 'http://example.com/images',
 867                                 'hashLevels' => 2,
 868                                 'transformVia404' => false,
 869                                 'backend' => new FSFileBackend( [
 870                                         'name' => 'local-backend',
 871                                         'wikiId' => wfWikiID(),
 872                                         'containerPaths' => [
 873                                                 'local-public' => $this->uploadDir,
 874                                                 'local-thumb' => $this->uploadDir . '/thumb',
 875                                                 'local-temp' => $this->uploadDir . '/temp',
 876                                                 'local-deleted' => $this->uploadDir . '/delete',
 877                                         ]
 878                                 ] )
 879                         ],
 880                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 881                         'wgUploadNavigationUrl' => false,
 882                         'wgStylePath' => '/skins',
 883                         'wgSitename' => 'MediaWiki',
 884                         'wgLanguageCode' => $lang,
 885                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'parsertest_' : 'pt_',
 886                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 887                         'wgLang' => null,
 888                         'wgContLang' => null,
 889                         'wgNamespacesWithSubpages' => [ 0 => isset( $opts['subpage'] ) ],
 890                         'wgMaxTocLevel' => $maxtoclevel,
 891                         'wgCapitalLinks' => true,
 892                         'wgNoFollowLinks' => true,
 893                         'wgNoFollowDomainExceptions' => [],
 894                         'wgThumbnailScriptPath' => false,
 895                         'wgUseImageResize' => true,
 896                         'wgSVGConverter' => 'null',
 897                         'wgSVGConverters' => [ 'null' => 'echo "1">$output' ],
 898                         'wgLocaltimezone' => 'UTC',
 899                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 900                         'wgThumbLimits' => [ self::getOptionValue( 'thumbsize', $opts, 180 ) ],
 901                         'wgDefaultLanguageVariant' => $variant,
 902                         'wgVariantArticlePath' => false,
 903                         'wgGroupPermissions' => [ '*' => [
 904                                 'createaccount' => true,
 905                                 'read' => true,
 906                                 'edit' => true,
 907                                 'createpage' => true,
 908                                 'createtalk' => true,
 909                         ] ],
 910                         'wgNamespaceProtection' => [ NS_MEDIAWIKI => 'editinterface' ],
 911                         'wgDefaultExternalStore' => [],
 912                         'wgForeignFileRepos' => [],
 913                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 914                         'wgExperimentalHtmlIds' => false,
 915                         'wgExternalLinkTarget' => false,
 916                         'wgHtml5' => true,
 917                         'wgWellFormedXml' => true,
 918                         'wgAdaptiveMessageCache' => true,
 919                         'wgDisableLangConversion' => false,
 920                         'wgDisableTitleConversion' => false,
 921                         // Tidy options.
 922                         'wgUseTidy' => isset( $opts['tidy'] ),
 923                         'wgTidyConfig' => null,
 924                         'wgDebugTidy' => false,
 925                         'wgTidyConf' => $IP . '/includes/tidy/tidy.conf',
 926                         'wgTidyOpts' => '',
 927                         'wgTidyInternal' => $this->tidySupport->isInternal(),
 928                 ];
 929
 930                 if ( $config ) {
 931                         $configLines = explode( "\n", $config );
 932
 933                         foreach ( $configLines as $line ) {
 934                                 list( $var, $value ) = explode( '=', $line, 2 );
 935
 936                                 $settings[$var] = eval( "return $value;" );
 937                         }
 938                 }
 939
 940                 $this->savedGlobals = [];
 941
 942                 /** @since 1.20 */
 943                 Hooks::run( 'ParserTestGlobals', [ &$settings ] );
 944
 945                 foreach ( $settings as $var => $val ) {
 946                         if ( array_key_exists( $var, $GLOBALS ) ) {
 947                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 948                         }
 949
 950                         $GLOBALS[$var] = $val;
 951                 }
 952
 953                 // Must be set before $context as user language defaults to $wgContLang
 954                 $GLOBALS['wgContLang'] = Language::factory( $lang );
 955                 $GLOBALS['wgMemc'] = new EmptyBagOStuff;
 956
 957                 RequestContext::resetMain();
 958                 $context = RequestContext::getMain();
 959                 $GLOBALS['wgLang'] = $context->getLanguage();
 960                 $GLOBALS['wgOut'] = $context->getOutput();
 961                 $GLOBALS['wgUser'] = $context->getUser();
 962
 963                 // We (re)set $wgThumbLimits to a single-element array above.
 964                 $context->getUser()->setOption( 'thumbsize', 0 );
 965
 966                 global $wgHooks;
 967
 968                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 969                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 970
 971                 MagicWord::clearCache();
 972                 MWTidy::destroySingleton();
 973                 RepoGroup::destroySingleton();
 974
 975                 self::resetTitleServices();
 976
 977                 return $context;
 978         }
 979
 980         /**
 981          * List of temporary tables to create, without prefix.
 982          * Some of these probably aren't necessary.
 983          * @return array
 984          */
 985         private function listTables() {
 986                 $tables = [ 'user', 'user_properties', 'user_former_groups', 'page', 'page_restrictions',
 987                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 988                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
 989                         'site_stats', 'ipblocks', 'image', 'oldimage',
 990                         'recentchanges', 'watchlist', 'interwiki', 'logging', 'log_search',
 991                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 992                         'archive', 'user_groups', 'page_props', 'category'
 993                 ];
 994
 995                 if ( in_array( $this->db->getType(), [ 'mysql', 'sqlite', 'oracle' ] ) ) {
 996                         array_push( $tables, 'searchindex' );
 997                 }
 998
 999                 // Allow extensions to add to the list of tables to duplicate;
1000                 // may be necessary if they hook into page save or other code
1001                 // which will require them while running tests.
1002                 Hooks::run( 'ParserTestTables', [ &$tables ] );
1003
1004                 return $tables;
1005         }
1006
1007         /**
1008          * Set up a temporary set of wiki tables to work with for the tests.
1009          * Currently this will only be done once per run, and any changes to
1010          * the db will be visible to later tests in the run.
1011          */
1012         public function setupDatabase() {
1013                 global $wgDBprefix;
1014
1015                 if ( $this->databaseSetupDone ) {
1016                         return;
1017                 }
1018
1019                 $this->db = wfGetDB( DB_MASTER );
1020                 $dbType = $this->db->getType();
1021
1022                 if ( $wgDBprefix === 'parsertest_' || ( $dbType == 'oracle' && $wgDBprefix === 'pt_' ) ) {
1023                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
1024                 }
1025
1026                 $this->databaseSetupDone = true;
1027
1028                 # SqlBagOStuff broke when using temporary tables on r40209 (bug 15892).
1029                 # It seems to have been fixed since (r55079?), but regressed at some point before r85701.
1030                 # This works around it for now...
1031                 ObjectCache::$instances[CACHE_DB] = new HashBagOStuff;
1032
1033                 # CREATE TEMPORARY TABLE breaks if there is more than one server
1034                 if ( wfGetLB()->getServerCount() != 1 ) {
1035                         $this->useTemporaryTables = false;
1036                 }
1037
1038                 $temporary = $this->useTemporaryTables || $dbType == 'postgres';
1039                 $prefix = $dbType != 'oracle' ? 'parsertest_' : 'pt_';
1040
1041                 $this->dbClone = new CloneDatabase( $this->db, $this->listTables(), $prefix );
1042                 $this->dbClone->useTemporaryTables( $temporary );
1043                 $this->dbClone->cloneTableStructure();
1044
1045                 if ( $dbType == 'oracle' ) {
1046                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1047                         # Insert 0 user to prevent FK violations
1048
1049                         # Anonymous user
1050                         $this->db->insert( 'user', [
1051                                 'user_id' => 0,
1052                                 'user_name' => 'Anonymous' ] );
1053                 }
1054
1055                 # Update certain things in site_stats
1056                 $this->db->insert( 'site_stats',
1057                         [ 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ] );
1058
1059                 # Reinitialise the LocalisationCache to match the database state
1060                 Language::getLocalisationCache()->unloadAll();
1061
1062                 # Clear the message cache
1063                 MessageCache::singleton()->clear();
1064
1065                 // Remember to update newParserTests.php after changing the below
1066                 // (and it uses a slightly different syntax just for teh lulz)
1067                 $this->setupUploadDir();
1068                 $user = User::createNew( 'WikiSysop' );
1069                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
1070                 # note that the size/width/height/bits/etc of the file
1071                 # are actually set by inspecting the file itself; the arguments
1072                 # to recordUpload2 have no effect.  That said, we try to make things
1073                 # match up so it is less confusing to readers of the code & tests.
1074                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', [
1075                         'size' => 7881,
1076                         'width' => 1941,
1077                         'height' => 220,
1078                         'bits' => 8,
1079                         'media_type' => MEDIATYPE_BITMAP,
1080                         'mime' => 'image/jpeg',
1081                         'metadata' => serialize( [] ),
1082                         'sha1' => Wikimedia\base_convert( '1', 16, 36, 31 ),
1083                         'fileExists' => true
1084                 ], $this->db->timestamp( '20010115123500' ), $user );
1085
1086                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
1087                 # again, note that size/width/height below are ignored; see above.
1088                 $image->recordUpload2( '', 'Upload of some lame thumbnail', 'Some lame thumbnail', [
1089                         'size' => 22589,
1090                         'width' => 135,
1091                         'height' => 135,
1092                         'bits' => 8,
1093                         'media_type' => MEDIATYPE_BITMAP,
1094                         'mime' => 'image/png',
1095                         'metadata' => serialize( [] ),
1096                         'sha1' => Wikimedia\base_convert( '2', 16, 36, 31 ),
1097                         'fileExists' => true
1098                 ], $this->db->timestamp( '20130225203040' ), $user );
1099
1100                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
1101                 $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', [
1102                                 'size'        => 12345,
1103                                 'width'       => 240,
1104                                 'height'      => 180,
1105                                 'bits'        => 0,
1106                                 'media_type'  => MEDIATYPE_DRAWING,
1107                                 'mime'        => 'image/svg+xml',
1108                                 'metadata'    => serialize( [] ),
1109                                 'sha1'        => Wikimedia\base_convert( '', 16, 36, 31 ),
1110                                 'fileExists'  => true
1111                 ], $this->db->timestamp( '20010115123500' ), $user );
1112
1113                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
1114                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
1115                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', [
1116                         'size' => 12345,
1117                         'width' => 320,
1118                         'height' => 240,
1119                         'bits' => 24,
1120                         'media_type' => MEDIATYPE_BITMAP,
1121                         'mime' => 'image/jpeg',
1122                         'metadata' => serialize( [] ),
1123                         'sha1' => Wikimedia\base_convert( '3', 16, 36, 31 ),
1124                         'fileExists' => true
1125                 ], $this->db->timestamp( '20010115123500' ), $user );
1126
1127                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Video.ogv' ) );
1128                 $image->recordUpload2( '', 'A pretty movie', 'Will it play', [
1129                         'size' => 12345,
1130                         'width' => 320,
1131                         'height' => 240,
1132                         'bits' => 0,
1133                         'media_type' => MEDIATYPE_VIDEO,
1134                         'mime' => 'application/ogg',
1135                         'metadata' => serialize( [] ),
1136                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1137                         'fileExists' => true
1138                 ], $this->db->timestamp( '20010115123500' ), $user );
1139
1140                 # A DjVu file
1141                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'LoremIpsum.djvu' ) );
1142                 $image->recordUpload2( '', 'Upload a DjVu', 'A DjVu', [
1143                         'size' => 3249,
1144                         'width' => 2480,
1145                         'height' => 3508,
1146                         'bits' => 0,
1147                         'media_type' => MEDIATYPE_BITMAP,
1148                         'mime' => 'image/vnd.djvu',
1149                         'metadata' => '<?xml version="1.0" ?>
1150 <!DOCTYPE DjVuXML PUBLIC "-//W3C//DTD DjVuXML 1.1//EN" "pubtext/DjVuXML-s.dtd">
1151 <DjVuXML>
1152 <HEAD></HEAD>
1153 <BODY><OBJECT height="3508" width="2480">
1154 <PARAM name="DPI" value="300" />
1155 <PARAM name="GAMMA" value="2.2" />
1156 </OBJECT>
1157 <OBJECT height="3508" width="2480">
1158 <PARAM name="DPI" value="300" />
1159 <PARAM name="GAMMA" value="2.2" />
1160 </OBJECT>
1161 <OBJECT height="3508" width="2480">
1162 <PARAM name="DPI" value="300" />
1163 <PARAM name="GAMMA" value="2.2" />
1164 </OBJECT>
1165 <OBJECT height="3508" width="2480">
1166 <PARAM name="DPI" value="300" />
1167 <PARAM name="GAMMA" value="2.2" />
1168 </OBJECT>
1169 <OBJECT height="3508" width="2480">
1170 <PARAM name="DPI" value="300" />
1171 <PARAM name="GAMMA" value="2.2" />
1172 </OBJECT>
1173 </BODY>
1174 </DjVuXML>',
1175                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1176                         'fileExists' => true
1177                 ], $this->db->timestamp( '20010115123600' ), $user );
1178         }
1179
1180         public function teardownDatabase() {
1181                 if ( !$this->databaseSetupDone ) {
1182                         $this->teardownGlobals();
1183                         return;
1184                 }
1185                 $this->teardownUploadDir( $this->uploadDir );
1186
1187                 $this->dbClone->destroy();
1188                 $this->databaseSetupDone = false;
1189
1190                 if ( $this->useTemporaryTables ) {
1191                         if ( $this->db->getType() == 'sqlite' ) {
1192                                 # Under SQLite the searchindex table is virtual and need
1193                                 # to be explicitly destroyed. See bug 29912
1194                                 # See also MediaWikiTestCase::destroyDB()
1195                                 wfDebug( __METHOD__ . " explicitly destroying sqlite virtual table parsertest_searchindex\n" );
1196                                 $this->db->query( "DROP TABLE `parsertest_searchindex`" );
1197                         }
1198                         # Don't need to do anything
1199                         $this->teardownGlobals();
1200                         return;
1201                 }
1202
1203                 $tables = $this->listTables();
1204
1205                 foreach ( $tables as $table ) {
1206                         if ( $this->db->getType() == 'oracle' ) {
1207                                 $this->db->query( "DROP TABLE pt_$table DROP CONSTRAINTS" );
1208                         } else {
1209                                 $this->db->query( "DROP TABLE `parsertest_$table`" );
1210                         }
1211                 }
1212
1213                 if ( $this->db->getType() == 'oracle' ) {
1214                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1215                 }
1216
1217                 $this->teardownGlobals();
1218         }
1219
1220         /**
1221          * Create a dummy uploads directory which will contain a couple
1222          * of files in order to pass existence tests.
1223          *
1224          * @return string The directory
1225          */
1226         private function setupUploadDir() {
1227                 global $IP;
1228
1229                 $dir = $this->uploadDir;
1230                 if ( $this->keepUploads && is_dir( $dir ) ) {
1231                         return;
1232                 }
1233
1234                 // wfDebug( "Creating upload directory $dir\n" );
1235                 if ( file_exists( $dir ) ) {
1236                         wfDebug( "Already exists!\n" );
1237                         return;
1238                 }
1239
1240                 wfMkdirParents( $dir . '/3/3a', null, __METHOD__ );
1241                 copy( "$IP/tests/phpunit/data/parser/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
1242                 wfMkdirParents( $dir . '/e/ea', null, __METHOD__ );
1243                 copy( "$IP/tests/phpunit/data/parser/wiki.png", "$dir/e/ea/Thumb.png" );
1244                 wfMkdirParents( $dir . '/0/09', null, __METHOD__ );
1245                 copy( "$IP/tests/phpunit/data/parser/headbg.jpg", "$dir/0/09/Bad.jpg" );
1246                 wfMkdirParents( $dir . '/f/ff', null, __METHOD__ );
1247                 file_put_contents( "$dir/f/ff/Foobar.svg",
1248                         '<?xml version="1.0" encoding="utf-8"?>' .
1249                         '<svg xmlns="http://www.w3.org/2000/svg"' .
1250                         ' version="1.1" width="240" height="180"/>' );
1251                 wfMkdirParents( $dir . '/5/5f', null, __METHOD__ );
1252                 copy( "$IP/tests/phpunit/data/parser/LoremIpsum.djvu", "$dir/5/5f/LoremIpsum.djvu" );
1253                 wfMkdirParents( $dir . '/0/00', null, __METHOD__ );
1254                 copy( "$IP/tests/phpunit/data/parser/320x240.ogv", "$dir/0/00/Video.ogv" );
1255
1256                 return;
1257         }
1258
1259         /**
1260          * Restore default values and perform any necessary clean-up
1261          * after each test runs.
1262          */
1263         private function teardownGlobals() {
1264                 RepoGroup::destroySingleton();
1265                 FileBackendGroup::destroySingleton();
1266                 LockManagerGroup::destroySingletons();
1267                 LinkCache::singleton()->clear();
1268                 MWTidy::destroySingleton();
1269
1270                 foreach ( $this->savedGlobals as $var => $val ) {
1271                         $GLOBALS[$var] = $val;
1272                 }
1273         }
1274
1275         /**
1276          * Remove the dummy uploads directory
1277          * @param string $dir
1278          */
1279         private function teardownUploadDir( $dir ) {
1280                 if ( $this->keepUploads ) {
1281                         return;
1282                 }
1283
1284                 // delete the files first, then the dirs.
1285                 self::deleteFiles(
1286                         [
1287                                 "$dir/3/3a/Foobar.jpg",
1288                                 "$dir/thumb/3/3a/Foobar.jpg/*.jpg",
1289                                 "$dir/e/ea/Thumb.png",
1290                                 "$dir/0/09/Bad.jpg",
1291                                 "$dir/5/5f/LoremIpsum.djvu",
1292                                 "$dir/thumb/5/5f/LoremIpsum.djvu/*-LoremIpsum.djvu.jpg",
1293                                 "$dir/f/ff/Foobar.svg",
1294                                 "$dir/thumb/f/ff/Foobar.svg/*-Foobar.svg.png",
1295                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
1296                                 "$dir/0/00/Video.ogv",
1297                                 "$dir/thumb/0/00/Video.ogv/120px--Video.ogv.jpg",
1298                                 "$dir/thumb/0/00/Video.ogv/180px--Video.ogv.jpg",
1299                                 "$dir/thumb/0/00/Video.ogv/240px--Video.ogv.jpg",
1300                                 "$dir/thumb/0/00/Video.ogv/320px--Video.ogv.jpg",
1301                                 "$dir/thumb/0/00/Video.ogv/270px--Video.ogv.jpg",
1302                                 "$dir/thumb/0/00/Video.ogv/320px-seek=2-Video.ogv.jpg",
1303                                 "$dir/thumb/0/00/Video.ogv/320px-seek=3.3666666666667-Video.ogv.jpg",
1304                         ]
1305                 );
1306
1307                 self::deleteDirs(
1308                         [
1309                                 "$dir/3/3a",
1310                                 "$dir/3",
1311                                 "$dir/thumb/3/3a/Foobar.jpg",
1312                                 "$dir/thumb/3/3a",
1313                                 "$dir/thumb/3",
1314                                 "$dir/e/ea",
1315                                 "$dir/e",
1316                                 "$dir/f/ff/",
1317                                 "$dir/f/",
1318                                 "$dir/thumb/f/ff/Foobar.svg",
1319                                 "$dir/thumb/f/ff/",
1320                                 "$dir/thumb/f/",
1321                                 "$dir/0/00/",
1322                                 "$dir/0/09/",
1323                                 "$dir/0/",
1324                                 "$dir/5/5f",
1325                                 "$dir/5",
1326                                 "$dir/thumb/0/00/Video.ogv",
1327                                 "$dir/thumb/0/00",
1328                                 "$dir/thumb/0",
1329                                 "$dir/thumb/5/5f/LoremIpsum.djvu",
1330                                 "$dir/thumb/5/5f",
1331                                 "$dir/thumb/5",
1332                                 "$dir/thumb",
1333                                 "$dir/math/f/a/5",
1334                                 "$dir/math/f/a",
1335                                 "$dir/math/f",
1336                                 "$dir/math",
1337                                 "$dir/lockdir",
1338                                 "$dir",
1339                         ]
1340                 );
1341         }
1342
1343         /**
1344          * Delete the specified files, if they exist.
1345          * @param array $files Full paths to files to delete.
1346          */
1347         private static function deleteFiles( $files ) {
1348                 foreach ( $files as $pattern ) {
1349                         foreach ( glob( $pattern ) as $file ) {
1350                                 if ( file_exists( $file ) ) {
1351                                         unlink( $file );
1352                                 }
1353                         }
1354                 }
1355         }
1356
1357         /**
1358          * Delete the specified directories, if they exist. Must be empty.
1359          * @param array $dirs Full paths to directories to delete.
1360          */
1361         private static function deleteDirs( $dirs ) {
1362                 foreach ( $dirs as $dir ) {
1363                         if ( is_dir( $dir ) ) {
1364                                 rmdir( $dir );
1365                         }
1366                 }
1367         }
1368
1369         /**
1370          * "Running test $desc..."
1371          * @param string $desc
1372          */
1373         protected function showTesting( $desc ) {
1374                 print "Running test $desc... ";
1375         }
1376
1377         /**
1378          * Print a happy success message.
1379          *
1380          * Refactored in 1.22 to use ParserTestResult
1381          *
1382          * @param ParserTestResult $testResult
1383          * @return bool
1384          */
1385         protected function showSuccess( ParserTestResult $testResult ) {
1386                 if ( $this->showProgress ) {
1387                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
1388                 }
1389
1390                 return true;
1391         }
1392
1393         /**
1394          * Print a failure message and provide some explanatory output
1395          * about what went wrong if so configured.
1396          *
1397          * Refactored in 1.22 to use ParserTestResult
1398          *
1399          * @param ParserTestResult $testResult
1400          * @return bool
1401          */
1402         protected function showFailure( ParserTestResult $testResult ) {
1403                 if ( $this->showFailure ) {
1404                         if ( !$this->showProgress ) {
1405                                 # In quiet mode we didn't show the 'Testing' message before the
1406                                 # test, in case it succeeded. Show it now:
1407                                 $this->showTesting( $testResult->description );
1408                         }
1409
1410                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
1411
1412                         if ( $this->showOutput ) {
1413                                 print "--- Expected ---\n{$testResult->expected}\n";
1414                                 print "--- Actual ---\n{$testResult->actual}\n";
1415                         }
1416
1417                         if ( $this->showDiffs ) {
1418                                 print $this->quickDiff( $testResult->expected, $testResult->actual );
1419                                 if ( !$this->wellFormed( $testResult->actual ) ) {
1420                                         print "XML error: $this->mXmlError\n";
1421                                 }
1422                         }
1423                 }
1424
1425                 return false;
1426         }
1427
1428         /**
1429          * Print a skipped message.
1430          *
1431          * @return bool
1432          */
1433         protected function showSkipped() {
1434                 if ( $this->showProgress ) {
1435                         print $this->term->color( '1;33' ) . 'SKIPPED' . $this->term->reset() . "\n";
1436                 }
1437
1438                 return true;
1439         }
1440
1441         /**
1442          * Run given strings through a diff and return the (colorized) output.
1443          * Requires writable /tmp directory and a 'diff' command in the PATH.
1444          *
1445          * @param string $input
1446          * @param string $output
1447          * @param string $inFileTail Tailing for the input file name
1448          * @param string $outFileTail Tailing for the output file name
1449          * @return string
1450          */
1451         protected function quickDiff( $input, $output,
1452                 $inFileTail = 'expected', $outFileTail = 'actual'
1453         ) {
1454                 # Windows, or at least the fc utility, is retarded
1455                 $slash = wfIsWindows() ? '\\' : '/';
1456                 $prefix = wfTempDir() . "{$slash}mwParser-" . mt_rand();
1457
1458                 $infile = "$prefix-$inFileTail";
1459                 $this->dumpToFile( $input, $infile );
1460
1461                 $outfile = "$prefix-$outFileTail";
1462                 $this->dumpToFile( $output, $outfile );
1463
1464                 $shellInfile = wfEscapeShellArg( $infile );
1465                 $shellOutfile = wfEscapeShellArg( $outfile );
1466
1467                 global $wgDiff3;
1468                 // we assume that people with diff3 also have usual diff
1469                 $shellCommand = ( wfIsWindows() && !$wgDiff3 ) ? 'fc' : 'diff -au';
1470
1471                 $diff = wfShellExec( "$shellCommand $shellInfile $shellOutfile" );
1472
1473                 unlink( $infile );
1474                 unlink( $outfile );
1475
1476                 return $this->colorDiff( $diff );
1477         }
1478
1479         /**
1480          * Write the given string to a file, adding a final newline.
1481          *
1482          * @param string $data
1483          * @param string $filename
1484          */
1485         private function dumpToFile( $data, $filename ) {
1486                 $file = fopen( $filename, "wt" );
1487                 fwrite( $file, $data . "\n" );
1488                 fclose( $file );
1489         }
1490
1491         /**
1492          * Colorize unified diff output if set for ANSI color output.
1493          * Subtractions are colored blue, additions red.
1494          *
1495          * @param string $text
1496          * @return string
1497          */
1498         protected function colorDiff( $text ) {
1499                 return preg_replace(
1500                         [ '/^(-.*)$/m', '/^(\+.*)$/m' ],
1501                         [ $this->term->color( 34 ) . '$1' . $this->term->reset(),
1502                                 $this->term->color( 31 ) . '$1' . $this->term->reset() ],
1503                         $text );
1504         }
1505
1506         /**
1507          * Show "Reading tests from ..."
1508          *
1509          * @param string $path
1510          */
1511         public function showRunFile( $path ) {
1512                 print $this->term->color( 1 ) .
1513                         "Reading tests from \"$path\"..." .
1514                         $this->term->reset() .
1515                         "\n";
1516         }
1517
1518         /**
1519          * Insert a temporary test article
1520          * @param string $name The title, including any prefix
1521          * @param string $text The article text
1522          * @param int|string $line The input line number, for reporting errors
1523          * @param bool|string $ignoreDuplicate Whether to silently ignore duplicate pages
1524          * @throws Exception
1525          * @throws MWException
1526          */
1527         public static function addArticle( $name, $text, $line = 'unknown', $ignoreDuplicate = '' ) {
1528                 global $wgCapitalLinks;
1529
1530                 $oldCapitalLinks = $wgCapitalLinks;
1531                 $wgCapitalLinks = true; // We only need this from SetupGlobals() See r70917#c8637
1532
1533                 $text = self::chomp( $text );
1534                 $name = self::chomp( $name );
1535
1536                 $title = Title::newFromText( $name );
1537
1538                 if ( is_null( $title ) ) {
1539                         throw new MWException( "invalid title '$name' at line $line\n" );
1540                 }
1541
1542                 $page = WikiPage::factory( $title );
1543                 $page->loadPageData( 'fromdbmaster' );
1544
1545                 if ( $page->exists() ) {
1546                         if ( $ignoreDuplicate == 'ignoreduplicate' ) {
1547                                 return;
1548                         } else {
1549                                 throw new MWException( "duplicate article '$name' at line $line\n" );
1550                         }
1551                 }
1552
1553                 $page->doEditContent( ContentHandler::makeContent( $text, $title ), '', EDIT_NEW );
1554
1555                 $wgCapitalLinks = $oldCapitalLinks;
1556         }
1557
1558         /**
1559          * Steal a callback function from the primary parser, save it for
1560          * application to our scary parser. If the hook is not installed,
1561          * abort processing of this file.
1562          *
1563          * @param string $name
1564          * @return bool True if tag hook is present
1565          */
1566         public function requireHook( $name ) {
1567                 global $wgParser;
1568
1569                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1570
1571                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1572                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1573                 } else {
1574                         echo "   This test suite requires the '$name' hook extension, skipping.\n";
1575                         return false;
1576                 }
1577
1578                 return true;
1579         }
1580
1581         /**
1582          * Steal a callback function from the primary parser, save it for
1583          * application to our scary parser. If the hook is not installed,
1584          * abort processing of this file.
1585          *
1586          * @param string $name
1587          * @return bool True if function hook is present
1588          */
1589         public function requireFunctionHook( $name ) {
1590                 global $wgParser;
1591
1592                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1593
1594                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1595                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1596                 } else {
1597                         echo "   This test suite requires the '$name' function hook extension, skipping.\n";
1598                         return false;
1599                 }
1600
1601                 return true;
1602         }
1603
1604         /**
1605          * Steal a callback function from the primary parser, save it for
1606          * application to our scary parser. If the hook is not installed,
1607          * abort processing of this file.
1608          *
1609          * @param string $name
1610          * @return bool True if function hook is present
1611          */
1612         public function requireTransparentHook( $name ) {
1613                 global $wgParser;
1614
1615                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1616
1617                 if ( isset( $wgParser->mTransparentTagHooks[$name] ) ) {
1618                         $this->transparentHooks[$name] = $wgParser->mTransparentTagHooks[$name];
1619                 } else {
1620                         echo "   This test suite requires the '$name' transparent hook extension, skipping.\n";
1621                         return false;
1622                 }
1623
1624                 return true;
1625         }
1626
1627         private function wellFormed( $text ) {
1628                 $html =
1629                         Sanitizer::hackDocType() .
1630                                 '<html>' .
1631                                 $text .
1632                                 '</html>';
1633
1634                 $parser = xml_parser_create( "UTF-8" );
1635
1636                 # case folding violates XML standard, turn it off
1637                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1638
1639                 if ( !xml_parse( $parser, $html, true ) ) {
1640                         $err = xml_error_string( xml_get_error_code( $parser ) );
1641                         $position = xml_get_current_byte_index( $parser );
1642                         $fragment = $this->extractFragment( $html, $position );
1643                         $this->mXmlError = "$err at byte $position:\n$fragment";
1644                         xml_parser_free( $parser );
1645
1646                         return false;
1647                 }
1648
1649                 xml_parser_free( $parser );
1650
1651                 return true;
1652         }
1653
1654         private function extractFragment( $text, $position ) {
1655                 $start = max( 0, $position - 10 );
1656                 $before = $position - $start;
1657                 $fragment = '...' .
1658                         $this->term->color( 34 ) .
1659                         substr( $text, $start, $before ) .
1660                         $this->term->color( 0 ) .
1661                         $this->term->color( 31 ) .
1662                         $this->term->color( 1 ) .
1663                         substr( $text, $position, 1 ) .
1664                         $this->term->color( 0 ) .
1665                         $this->term->color( 34 ) .
1666                         substr( $text, $position + 1, 9 ) .
1667                         $this->term->color( 0 ) .
1668                         '...';
1669                 $display = str_replace( "\n", ' ', $fragment );
1670                 $caret = '   ' .
1671                         str_repeat( ' ', $before ) .
1672                         $this->term->color( 31 ) .
1673                         '^' .
1674                         $this->term->color( 0 );
1675
1676                 return "$display\n$caret";
1677         }
1678
1679         static function getFakeTimestamp( &$parser, &$ts ) {
1680                 $ts = 123; // parsed as '1970-01-01T00:02:03Z'
1681                 return true;
1682         }
1683 }