tests/phpunit/includes/parser/NewParserTest.php

   1 <?php
   2
   3 /**
   4  * @group Database
   5  */
   6 class NewParserTest extends MediaWikiTestCase {
   7
   8         public $uploadDir;
   9         public $keepUploads = false;
  10         public $runDisabled = false;
  11         public $regex = '';
  12         public $showProgress = true;
  13         public $savedInitialGlobals = array();
  14         public $savedWeirdGlobals = array();
  15         public $savedGlobals = array();
  16         public $hooks = array();
  17         public $functionHooks = array();
  18
  19         //Fuzz test
  20         public $maxFuzzTestLength = 300;
  21         public $fuzzSeed = 0;
  22         public $memoryLimit = 50;
  23
  24
  25
  26         //PHPUnit + MediaWikiTestCase functions
  27
  28         function setUp() {
  29                 global $wgContLang, $wgUseDatabaseMessages, $wgMsgCacheExpiry, $wgNamespaceProtection, $wgNamespaceAliases, $IP, $messageMemc;
  30                 $wgContLang = Language::factory( 'en' );
  31
  32                 //Setup CLI arguments
  33                 if ( $this->getCliArg( 'regex=' ) ) {
  34                         $this->regex = $this->getCliArg( 'regex=' );
  35                 } else {
  36                         # Matches anything
  37                         $this->regex = '';
  38                 }
  39
  40                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  41
  42                 $tmpGlobals = array();
  43
  44                 $tmpGlobals['wgScript'] = '/index.php';
  45                 $tmpGlobals['wgScriptPath'] = '/';
  46                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  47                 $tmpGlobals['wgStyleSheetPath'] = '/skins';
  48                 $tmpGlobals['wgStylePath'] = '/skins';
  49                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  50                 $tmpGlobals['wgLocalFileRepo'] = array(
  51                         'class' => 'LocalRepo',
  52                         'name' => 'local',
  53                         'directory' => wfTempDir() . '/test-repo',
  54                         'url' => 'http://example.com/images',
  55                         'deletedDir' => wfTempDir() . '/test-repo/delete',
  56                         'hashLevels' => 2,
  57                         'transformVia404' => false,
  58                 );
  59
  60                 $tmpGlobals['wgEnableParserCache'] = false;
  61                 $tmpGlobals['wgDeferredUpdateList'] = array();
  62                 $tmpGlobals['wgMemc'] = &wfGetMainCache();
  63                 $messageMemc = &wfGetMessageCacheStorage();
  64                 $tmpGlobals['parserMemc'] = &wfGetParserCacheStorage();
  65
  66                 // $tmpGlobals['wgContLang'] = new StubContLang;
  67                 $tmpGlobals['wgUser'] = new User;
  68                 $tmpGlobals['wgLang'] = new StubUserLang;
  69                 $tmpGlobals['wgOut'] = new StubObject( 'wgOut', 'OutputPage' );
  70                 $tmpGlobals['wgParser'] = new StubObject( 'wgParser', $GLOBALS['wgParserConf']['class'], array( $GLOBALS['wgParserConf'] ) );
  71                 $tmpGlobals['wgRequest'] = new WebRequest;
  72
  73                 $tmpGlobals['wgMessageCache'] = new StubObject( 'wgMessageCache', 'MessageCache',
  74                                                                                   array( $messageMemc, $wgUseDatabaseMessages,
  75                                                                                                  $wgMsgCacheExpiry ) );
  76                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
  77                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
  78                 }
  79
  80
  81                 foreach ( $tmpGlobals as $var => $val ) {
  82                         if ( array_key_exists( $var, $GLOBALS ) ) {
  83                                 $this->savedInitialGlobals[$var] = $GLOBALS[$var];
  84                         }
  85
  86                         $GLOBALS[$var] = $val;
  87                 }
  88
  89                 $this->savedWeirdGlobals['mw_namespace_protection'] = $wgNamespaceProtection[NS_MEDIAWIKI];
  90                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
  91                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
  92
  93                 $wgNamespaceProtection[NS_MEDIAWIKI] = 'editinterface';
  94                 $wgNamespaceAliases['Image'] = NS_FILE;
  95                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
  96
  97         }
  98
  99         public function tearDown() {
 100
 101                 foreach ( $this->savedInitialGlobals as $var => $val ) {
 102                         $GLOBALS[$var] = $val;
 103                 }
 104
 105                 global $wgNamespaceProtection, $wgNamespaceAliases;
 106
 107                 $wgNamespaceProtection[NS_MEDIAWIKI] = $this->savedWeirdGlobals['mw_namespace_protection'];
 108                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 109                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 110         }
 111
 112         function addDBData() {
 113                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 114                 # for testing inter-language links
 115                 $this->db->insert( 'interwiki', array(
 116                         array( 'iw_prefix' => 'wikipedia',
 117                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 118                                    'iw_api'    => '',
 119                                    'iw_wikiid' => '',
 120                                    'iw_local'  => 0 ),
 121                         array( 'iw_prefix' => 'meatball',
 122                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 123                                    'iw_api'    => '',
 124                                    'iw_wikiid' => '',
 125                                    'iw_local'  => 0 ),
 126                         array( 'iw_prefix' => 'zh',
 127                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 128                                    'iw_api'    => '',
 129                                    'iw_wikiid' => '',
 130                                    'iw_local'  => 1 ),
 131                         array( 'iw_prefix' => 'es',
 132                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 133                                    'iw_api'    => '',
 134                                    'iw_wikiid' => '',
 135                                    'iw_local'  => 1 ),
 136                         array( 'iw_prefix' => 'fr',
 137                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 138                                    'iw_api'    => '',
 139                                    'iw_wikiid' => '',
 140                                    'iw_local'  => 1 ),
 141                         array( 'iw_prefix' => 'ru',
 142                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 143                                    'iw_api'    => '',
 144                                    'iw_wikiid' => '',
 145                                    'iw_local'  => 1 ),
 146                         ) );
 147
 148
 149                 # Update certain things in site_stats
 150                 $this->db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ) );
 151
 152                 # Reinitialise the LocalisationCache to match the database state
 153                 Language::getLocalisationCache()->unloadAll();
 154
 155                 # Make a new message cache
 156                 global $wgMessageCache, $wgMemc;
 157                 $wgMessageCache = new MessageCache( $wgMemc, true, 3600 );
 158
 159                 $this->uploadDir = $this->setupUploadDir();
 160
 161                 $user = User::newFromId( 0 );
 162
 163                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 164                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', array(
 165                         'size'        => 12345,
 166                         'width'       => 1941,
 167                         'height'      => 220,
 168                         'bits'        => 24,
 169                         'media_type'  => MEDIATYPE_BITMAP,
 170                         'mime'        => 'image/jpeg',
 171                         'metadata'    => serialize( array() ),
 172                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 173                         'fileExists'  => true
 174                         ), $this->db->timestamp( '20010115123500' ), $user );
 175
 176                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 177                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 178                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', array(
 179                         'size'        => 12345,
 180                         'width'       => 320,
 181                         'height'      => 240,
 182                         'bits'        => 24,
 183                         'media_type'  => MEDIATYPE_BITMAP,
 184                         'mime'        => 'image/jpeg',
 185                         'metadata'    => serialize( array() ),
 186                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 187                         'fileExists'  => true
 188                         ), $this->db->timestamp( '20010115123500' ), $user );
 189
 190         }
 191
 192
 193
 194
 195         //ParserTest setup/teardown functions
 196
 197         /**
 198          * Set up the global variables for a consistent environment for each test.
 199          * Ideally this should replace the global configuration entirely.
 200          */
 201         protected function setupGlobals( $opts = '', $config = '' ) {
 202                 # Find out values for some special options.
 203                 $lang =
 204                         self::getOptionValue( 'language', $opts, 'en' );
 205                 $variant =
 206                         self::getOptionValue( 'variant', $opts, false );
 207                 $maxtoclevel =
 208                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 209                 $linkHolderBatchSize =
 210                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 211
 212                 $settings = array(
 213                         'wgServer' => 'http://Britney-Spears',
 214                         'wgScript' => '/index.php',
 215                         'wgScriptPath' => '/',
 216                         'wgArticlePath' => '/wiki/$1',
 217                         'wgActionPaths' => array(),
 218                         'wgLocalFileRepo' => array(
 219                                 'class' => 'LocalRepo',
 220                                 'name' => 'local',
 221                                 'directory' => $this->uploadDir,
 222                                 'url' => 'http://example.com/images',
 223                                 'hashLevels' => 2,
 224                                 'transformVia404' => false,
 225                         ),
 226                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 227                         'wgStylePath' => '/skins',
 228                         'wgStyleSheetPath' => '/skins',
 229                         'wgSitename' => 'MediaWiki',
 230                         'wgLanguageCode' => $lang,
 231                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 232                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 233                         'wgLang' => null,
 234                         'wgContLang' => null,
 235                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 236                         'wgMaxTocLevel' => $maxtoclevel,
 237                         'wgCapitalLinks' => true,
 238                         'wgNoFollowLinks' => true,
 239                         'wgNoFollowDomainExceptions' => array(),
 240                         'wgThumbnailScriptPath' => false,
 241                         'wgUseImageResize' => false,
 242                         'wgUseTeX' => isset( $opts['math'] ),
 243                         'wgMathDirectory' => $this->uploadDir . '/math',
 244                         'wgLocaltimezone' => 'UTC',
 245                         'wgAllowExternalImages' => true,
 246                         'wgUseTidy' => false,
 247                         'wgDefaultLanguageVariant' => $variant,
 248                         'wgVariantArticlePath' => false,
 249                         'wgGroupPermissions' => array( '*' => array(
 250                                 'createaccount' => true,
 251                                 'read'          => true,
 252                                 'edit'          => true,
 253                                 'createpage'    => true,
 254                                 'createtalk'    => true,
 255                         ) ),
 256                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 257                         'wgDefaultExternalStore' => array(),
 258                         'wgForeignFileRepos' => array(),
 259                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 260                         'wgExperimentalHtmlIds' => false,
 261                         'wgExternalLinkTarget' => false,
 262                         'wgAlwaysUseTidy' => false,
 263                         'wgHtml5' => true,
 264                         'wgWellFormedXml' => true,
 265                         'wgAllowMicrodataAttributes' => true,
 266                         'wgAdaptiveMessageCache' => true
 267                 );
 268
 269                 if ( $config ) {
 270                         $configLines = explode( "\n", $config );
 271
 272                         foreach ( $configLines as $line ) {
 273                                 list( $var, $value ) = explode( '=', $line, 2 );
 274
 275                                 $settings[$var] = eval( "return $value;" ); //???
 276                         }
 277                 }
 278
 279                 $this->savedGlobals = array();
 280
 281                 foreach ( $settings as $var => $val ) {
 282                         if ( array_key_exists( $var, $GLOBALS ) ) {
 283                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 284                         }
 285
 286                         $GLOBALS[$var] = $val;
 287                 }
 288
 289                 $langObj = Language::factory( $lang );
 290                 $GLOBALS['wgLang'] = $langObj;
 291                 $GLOBALS['wgContLang'] = $langObj;
 292                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
 293                 $GLOBALS['wgOut'] = new OutputPage;
 294
 295                 global $wgHooks;
 296
 297                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 298                 $wgHooks['ParserTestParser'][] = 'ParserTestStaticParserHook::setup';
 299                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 300
 301                 MagicWord::clearCache();
 302
 303                 global $wgUser;
 304                 $wgUser = new User();
 305         }
 306
 307         /**
 308          * Restore default values and perform any necessary clean-up
 309          * after each test runs.
 310          */
 311         protected function teardownGlobals() {
 312                 RepoGroup::destroySingleton();
 313                 LinkCache::singleton()->clear();
 314
 315                 foreach ( $this->savedGlobals as $var => $val ) {
 316                         $GLOBALS[$var] = $val;
 317                 }
 318         }
 319
 320         /**
 321          * Create a dummy uploads directory which will contain a couple
 322          * of files in order to pass existence tests.
 323          *
 324          * @return String: the directory
 325          */
 326         protected function setupUploadDir() {
 327                 global $IP;
 328
 329                 if ( $this->keepUploads ) {
 330                         $dir = wfTempDir() . '/mwParser-images';
 331
 332                         if ( is_dir( $dir ) ) {
 333                                 return $dir;
 334                         }
 335                 } else {
 336                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 337                 }
 338
 339                 // wfDebug( "Creating upload directory $dir\n" );
 340                 if ( file_exists( $dir ) ) {
 341                         wfDebug( "Already exists!\n" );
 342                         return $dir;
 343                 }
 344
 345                 wfMkdirParents( $dir . '/3/3a' );
 346                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 347                 wfMkdirParents( $dir . '/0/09' );
 348                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 349
 350                 return $dir;
 351         }
 352
 353
 354
 355
 356
 357         //Actual test suites
 358
 359         public function testParserTests() {
 360
 361                 global $wgParserTestFiles;
 362
 363                 $files = $wgParserTestFiles;
 364
 365                 if( $this->getCliArg( 'file=' ) ) {
 366                         $files = array( $this->getCliArg( 'file=' ) );
 367                 }
 368
 369                 foreach( $files as $file ) {
 370
 371                         $iter = new ParserTestFileIterator( $file, $this );
 372
 373                         foreach ( $iter as $t ) {
 374
 375                                 try {
 376
 377                                         $desc = $t['test'];
 378                                         $input = $t['input'];
 379                                         $result = $t['result'];
 380                                         $opts = $t['options'];
 381                                         $config = $t['config'];
 382
 383
 384                                         $opts = $this->parseOptions( $opts );
 385                                         $this->setupGlobals( $opts, $config );
 386
 387                                         $user = new User();
 388                                         $options = ParserOptions::newFromUser( $user );
 389
 390                                         if ( isset( $opts['title'] ) ) {
 391                                                 $titleText = $opts['title'];
 392                                         }
 393                                         else {
 394                                                 $titleText = 'Parser test';
 395                                         }
 396
 397                                         $local = isset( $opts['local'] );
 398                                         $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 399                                         $parser = $this->getParser( $preprocessor );
 400                                         $title = Title::newFromText( $titleText );
 401
 402                                         if ( isset( $opts['pst'] ) ) {
 403                                                 $out = $parser->preSaveTransform( $input, $title, $user, $options );
 404                                         } elseif ( isset( $opts['msg'] ) ) {
 405                                                 $out = $parser->transformMsg( $input, $options );
 406                                         } elseif ( isset( $opts['section'] ) ) {
 407                                                 $section = $opts['section'];
 408                                                 $out = $parser->getSection( $input, $section );
 409                                         } elseif ( isset( $opts['replace'] ) ) {
 410                                                 $section = $opts['replace'][0];
 411                                                 $replace = $opts['replace'][1];
 412                                                 $out = $parser->replaceSection( $input, $section, $replace );
 413                                         } elseif ( isset( $opts['comment'] ) ) {
 414                                                 $linker = $user->getSkin();
 415                                                 $out = $linker->formatComment( $input, $title, $local );
 416                                         } elseif ( isset( $opts['preload'] ) ) {
 417                                                 $out = $parser->getpreloadText( $input, $title, $options );
 418                                         } else {
 419                                                 $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 420                                                 $out = $output->getText();
 421
 422                                                 if ( isset( $opts['showtitle'] ) ) {
 423                                                         if ( $output->getTitleText() ) {
 424                                                                 $title = $output->getTitleText();
 425                                                         }
 426
 427                                                         $out = "$title\n$out";
 428                                                 }
 429
 430                                                 if ( isset( $opts['ill'] ) ) {
 431                                                         $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 432                                                 } elseif ( isset( $opts['cat'] ) ) {
 433                                                         global $wgOut;
 434
 435                                                         $wgOut->addCategoryLinks( $output->getCategories() );
 436                                                         $cats = $wgOut->getCategoryLinks();
 437
 438                                                         if ( isset( $cats['normal'] ) ) {
 439                                                                 $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 440                                                         } else {
 441                                                                 $out = '';
 442                                                         }
 443                                                 }
 444
 445                                                 $result = $this->tidy( $result );
 446                                         }
 447
 448                                         $this->teardownGlobals();
 449
 450                                         $this->assertEquals( $result, $out, $desc );
 451
 452                                 }
 453                                 catch( Exception $e ) {
 454                                         $this->assertTrue( false, $t['test'] . ' (failed: ' . $e->getMessage() . ')' );
 455                                 }
 456
 457                         }
 458
 459                 }
 460
 461         }
 462
 463         /**
 464          * Run a fuzz test series
 465          * Draw input from a set of test files
 466          */
 467         function testFuzzTests() {
 468
 469                 $this->markTestIncomplete( 'Breaks tesla due to memory restrictions' );
 470
 471                 global $wgParserTestFiles;
 472
 473                 $files = $wgParserTestFiles;
 474
 475                 if( $this->getCliArg( 'file=' ) ) {
 476                         $files = array( $this->getCliArg( 'file=' ) );
 477                 }
 478
 479                 $dict = $this->getFuzzInput( $files );
 480                 $dictSize = strlen( $dict );
 481                 $logMaxLength = log( $this->maxFuzzTestLength );
 482
 483                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 484
 485                 $user = new User;
 486                 $opts = ParserOptions::newFromUser( $user );
 487                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 488
 489                 $id = 1;
 490
 491                 while ( true ) {
 492
 493                         // Generate test input
 494                         mt_srand( ++$this->fuzzSeed );
 495                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 496                         $input = '';
 497
 498                         while ( strlen( $input ) < $totalLength ) {
 499                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 500                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 501                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 502                                 $input .= substr( $dict, $offset, $hairLength );
 503                         }
 504
 505                         $this->setupGlobals();
 506                         $parser = $this->getParser();
 507
 508                         // Run the test
 509                         try {
 510                                 $parser->parse( $input, $title, $opts );
 511                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 512                         } catch ( Exception $exception ) {
 513
 514                                 ob_start();
 515                                 var_dump( $input );
 516                                 $input_dump = ob_get_contents();
 517                                 ob_end_clean();
 518
 519                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\nInput: $input_dump\n\nError: {$exception->getMessage()}\n\nBacktrace: {$exception->getTraceAsString()}" );
 520                         }
 521
 522                         $this->teardownGlobals();
 523                         $parser->__destruct();
 524
 525                         if ( $id % 100 == 0 ) {
 526                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 527                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 528                                 if ( $usage > 90 ) {
 529                                         $ret = "Out of memory:\n";
 530                                         $memStats = $this->getMemoryBreakdown();
 531
 532                                         foreach ( $memStats as $name => $usage ) {
 533                                                 $ret .= "$name: $usage\n";
 534                                         }
 535
 536                                         throw new MWException( $ret );
 537                                 }
 538                         }
 539
 540                         $id++;
 541
 542                 }
 543         }
 544
 545         //Various getter functions
 546
 547         /**
 548          * Get an input dictionary from a set of parser test files
 549          */
 550         function getFuzzInput( $filenames ) {
 551                 $dict = '';
 552
 553                 foreach ( $filenames as $filename ) {
 554                         $contents = file_get_contents( $filename );
 555                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 556
 557                         foreach ( $matches[1] as $match ) {
 558                                 $dict .= $match . "\n";
 559                         }
 560                 }
 561
 562                 return $dict;
 563         }
 564
 565         /**
 566          * Get a memory usage breakdown
 567          */
 568         function getMemoryBreakdown() {
 569                 $memStats = array();
 570
 571                 foreach ( $GLOBALS as $name => $value ) {
 572                         $memStats['$' . $name] = strlen( serialize( $value ) );
 573                 }
 574
 575                 $classes = get_declared_classes();
 576
 577                 foreach ( $classes as $class ) {
 578                         $rc = new ReflectionClass( $class );
 579                         $props = $rc->getStaticProperties();
 580                         $memStats[$class] = strlen( serialize( $props ) );
 581                         $methods = $rc->getMethods();
 582
 583                         foreach ( $methods as $method ) {
 584                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 585                         }
 586                 }
 587
 588                 $functions = get_defined_functions();
 589
 590                 foreach ( $functions['user'] as $function ) {
 591                         $rf = new ReflectionFunction( $function );
 592                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 593                 }
 594
 595                 asort( $memStats );
 596
 597                 return $memStats;
 598         }
 599
 600         /**
 601          * Get a Parser object
 602          */
 603         function getParser( $preprocessor = null ) {
 604                 global $wgParserConf;
 605
 606                 $class = $wgParserConf['class'];
 607                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 608
 609                 foreach ( $this->hooks as $tag => $callback ) {
 610                         $parser->setHook( $tag, $callback );
 611                 }
 612
 613                 foreach ( $this->functionHooks as $tag => $bits ) {
 614                         list( $callback, $flags ) = $bits;
 615                         $parser->setFunctionHook( $tag, $callback, $flags );
 616                 }
 617
 618                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 619
 620                 return $parser;
 621         }
 622
 623
 624
 625
 626
 627
 628
 629         //Various action functions
 630
 631         /**
 632          * Insert a temporary test article
 633          * @param $name String: the title, including any prefix
 634          * @param $text String: the article text
 635          * @param $line Integer: the input line number, for reporting errors
 636          */
 637         public function addArticle( $name, $text, $line = 'unknown' ) {
 638                 global $wgCapitalLinks;
 639
 640                 $text = $this->removeEndingNewline($text);
 641
 642                 $oldCapitalLinks = $wgCapitalLinks;
 643                 $wgCapitalLinks = true; // We only need this from SetupGlobals() See r70917#c8637
 644
 645                 $name = $this->removeEndingNewline( $name );
 646                 $title = Title::newFromText( $name );
 647
 648                 if ( is_null( $title ) ) {
 649                         throw new MWException( "invalid title ('$name' => '$title') at line $line\n" );
 650                 }
 651
 652                 $aid = $title->getArticleID( Title::GAID_FOR_UPDATE );
 653
 654                 if ( $aid != 0 ) {
 655                         debug_print_backtrace();
 656                         throw new MWException( "duplicate article '$name' at line $line\n" );
 657                 }
 658
 659                 $art = new Article( $title );
 660                 $art->doEdit( $text, '', EDIT_NEW );
 661
 662                 $wgCapitalLinks = $oldCapitalLinks;
 663         }
 664
 665         /**
 666          * Steal a callback function from the primary parser, save it for
 667          * application to our scary parser. If the hook is not installed,
 668          * abort processing of this file.
 669          *
 670          * @param $name String
 671          * @return Bool true if tag hook is present
 672          */
 673         public function requireHook( $name ) {
 674                 global $wgParser;
 675
 676                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
 677
 678                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
 679                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
 680                 } else {
 681                         echo "   This test suite requires the '$name' hook extension, skipping.\n";
 682                         return false;
 683                 }
 684
 685                 return true;
 686         }
 687
 688
 689
 690
 691
 692         //Various "cleanup" functions
 693
 694         /*
 695          * Run the "tidy" command on text if the $wgUseTidy
 696          * global is true
 697          *
 698          * @param $text String: the text to tidy
 699          * @return String
 700          * @static
 701          */
 702         protected function tidy( $text ) {
 703                 global $wgUseTidy;
 704
 705                 if ( $wgUseTidy ) {
 706                         $text = MWTidy::tidy( $text );
 707                 }
 708
 709                 return $text;
 710         }
 711
 712         /**
 713          * Remove last character if it is a newline
 714          */
 715         public function removeEndingNewline( $s ) {
 716                 if ( substr( $s, -1 ) === "\n" ) {
 717                         return substr( $s, 0, -1 );
 718                 }
 719                 else {
 720                         return $s;
 721                 }
 722         }
 723
 724
 725
 726
 727
 728
 729         //Test options parser functions
 730
 731         protected function parseOptions( $instring ) {
 732                 $opts = array();
 733                 // foo
 734                 // foo=bar
 735                 // foo="bar baz"
 736                 // foo=[[bar baz]]
 737                 // foo=bar,"baz quux"
 738                 $regex = '/\b
 739                         ([\w-]+)                                                # Key
 740                         \b
 741                         (?:\s*
 742                                 =                                               # First sub-value
 743                                 \s*
 744                                 (
 745                                         "
 746                                                 [^"]*                   # Quoted val
 747                                         "
 748                                 |
 749                                         \[\[
 750                                                 [^]]*                   # Link target
 751                                         \]\]
 752                                 |
 753                                         [\w-]+                          # Plain word
 754                                 )
 755                                 (?:\s*
 756                                         ,                                       # Sub-vals 1..N
 757                                         \s*
 758                                         (
 759                                                 "[^"]*"                 # Quoted val
 760                                         |
 761                                                 \[\[[^]]*\]\]   # Link target
 762                                         |
 763                                                 [\w-]+                  # Plain word
 764                                         )
 765                                 )*
 766                         )?
 767                         /x';
 768
 769                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 770                         foreach ( $matches as $bits ) {
 771                                 array_shift( $bits );
 772                                 $key = strtolower( array_shift( $bits ) );
 773                                 if ( count( $bits ) == 0 ) {
 774                                         $opts[$key] = true;
 775                                 } elseif ( count( $bits ) == 1 ) {
 776                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 777                                 } else {
 778                                         // Array!
 779                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 780                                 }
 781                         }
 782                 }
 783                 return $opts;
 784         }
 785
 786         protected function cleanupOption( $opt ) {
 787                 if ( substr( $opt, 0, 1 ) == '"' ) {
 788                         return substr( $opt, 1, -1 );
 789                 }
 790
 791                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 792                         return substr( $opt, 2, -2 );
 793                 }
 794                 return $opt;
 795         }
 796
 797         /**
 798          * Use a regex to find out the value of an option
 799          * @param $key String: name of option val to retrieve
 800          * @param $opts Options array to look in
 801          * @param $default Mixed: default value returned if not found
 802          */
 803         protected static function getOptionValue( $key, $opts, $default ) {
 804                 $key = strtolower( $key );
 805
 806                 if ( isset( $opts[$key] ) ) {
 807                         return $opts[$key];
 808                 } else {
 809                         return $default;
 810                 }
 811         }
 812 }
 813