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