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