tests/phpunit/includes/parser/NewParserTest.php

   1 <?php
   2
   3 /**
   4  * Although marked as a stub, can work independently.
   5  *
   6  * @group Database
   7  * @group Parser
   8  * @group Stub
   9  *
  10  * @todo covers tags
  11  */
  12 class NewParserTest extends MediaWikiTestCase {
  13         static protected $articles = array(); // Array of test articles defined by the tests
  14         /* The data provider is run on a different instance than the test, so it must be static
  15          * When running tests from several files, all tests will see all articles.
  16          */
  17         static protected $backendToUse;
  18
  19         public $keepUploads = false;
  20         public $runDisabled = false;
  21         public $runParsoid = false;
  22         public $regex = '';
  23         public $showProgress = true;
  24         public $savedWeirdGlobals = array();
  25         public $savedGlobals = array();
  26         public $hooks = array();
  27         public $functionHooks = array();
  28
  29         //Fuzz test
  30         public $maxFuzzTestLength = 300;
  31         public $fuzzSeed = 0;
  32         public $memoryLimit = 50;
  33
  34         protected $file = false;
  35
  36         public static function setUpBeforeClass() {
  37                 // Inject ParserTest well-known interwikis
  38                 ParserTest::setupInterwikis();
  39         }
  40
  41         protected function setUp() {
  42                 global $wgNamespaceAliases, $wgContLang;
  43                 global $wgHooks, $IP;
  44
  45                 parent::setUp();
  46
  47                 //Setup CLI arguments
  48                 if ( $this->getCliArg( 'regex=' ) ) {
  49                         $this->regex = $this->getCliArg( 'regex=' );
  50                 } else {
  51                         # Matches anything
  52                         $this->regex = '';
  53                 }
  54
  55                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  56
  57                 $tmpGlobals = array();
  58
  59                 $tmpGlobals['wgLanguageCode'] = 'en';
  60                 $tmpGlobals['wgContLang'] = Language::factory( 'en' );
  61                 $tmpGlobals['wgSitename'] = 'MediaWiki';
  62                 $tmpGlobals['wgServer'] = 'http://example.org';
  63                 $tmpGlobals['wgScript'] = '/index.php';
  64                 $tmpGlobals['wgScriptPath'] = '/';
  65                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  66                 $tmpGlobals['wgActionPaths'] = array();
  67                 $tmpGlobals['wgVariantArticlePath'] = false;
  68                 $tmpGlobals['wgExtensionAssetsPath'] = '/extensions';
  69                 $tmpGlobals['wgStylePath'] = '/skins';
  70                 $tmpGlobals['wgEnableUploads'] = true;
  71                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  72                 $tmpGlobals['wgLocalFileRepo'] = array(
  73                         'class' => 'LocalRepo',
  74                         'name' => 'local',
  75                         'url' => 'http://example.com/images',
  76                         'hashLevels' => 2,
  77                         'transformVia404' => false,
  78                         'backend' => 'local-backend'
  79                 );
  80                 $tmpGlobals['wgForeignFileRepos'] = array();
  81                 $tmpGlobals['wgDefaultExternalStore'] = array();
  82                 $tmpGlobals['wgEnableParserCache'] = false;
  83                 $tmpGlobals['wgCapitalLinks'] = true;
  84                 $tmpGlobals['wgNoFollowLinks'] = true;
  85                 $tmpGlobals['wgNoFollowDomainExceptions'] = array();
  86                 $tmpGlobals['wgExternalLinkTarget'] = false;
  87                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  88                 $tmpGlobals['wgUseImageResize'] = true;
  89                 $tmpGlobals['wgAllowExternalImages'] = true;
  90                 $tmpGlobals['wgRawHtml'] = false;
  91                 $tmpGlobals['wgUseTidy'] = false;
  92                 $tmpGlobals['wgAlwaysUseTidy'] = false;
  93                 $tmpGlobals['wgWellFormedXml'] = true;
  94                 $tmpGlobals['wgAllowMicrodataAttributes'] = true;
  95                 $tmpGlobals['wgExperimentalHtmlIds'] = false;
  96                 $tmpGlobals['wgAdaptiveMessageCache'] = true;
  97                 $tmpGlobals['wgUseDatabaseMessages'] = true;
  98                 $tmpGlobals['wgLocaltimezone'] = 'UTC';
  99                 $tmpGlobals['wgDeferredUpdateList'] = array();
 100                 $tmpGlobals['wgGroupPermissions'] = array(
 101                         '*' => array(
 102                                 'createaccount' => true,
 103                                 'read' => true,
 104                                 'edit' => true,
 105                                 'createpage' => true,
 106                                 'createtalk' => true,
 107                 ) );
 108                 $tmpGlobals['wgNamespaceProtection'] = array( NS_MEDIAWIKI => 'editinterface' );
 109
 110                 $tmpGlobals['wgParser'] = new StubObject(
 111                         'wgParser', $GLOBALS['wgParserConf']['class'],
 112                         array( $GLOBALS['wgParserConf'] ) );
 113
 114                 $tmpGlobals['wgFileExtensions'][] = 'svg';
 115                 $tmpGlobals['wgSVGConverter'] = 'rsvg';
 116                 $tmpGlobals['wgSVGConverters']['rsvg'] =
 117                         '$path/rsvg-convert -w $width -h $height $input -o $output';
 118
 119                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
 120                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
 121                 }
 122
 123                 # Replace all media handlers with a mock. We do not need to generate
 124                 # actual thumbnails to do parser testing, we only care about receiving
 125                 # a ThumbnailImage properly initialized.
 126                 global $wgMediaHandlers;
 127                 foreach ( $wgMediaHandlers as $type => $handler ) {
 128                         $tmpGlobals['wgMediaHandlers'][$type] = 'MockBitmapHandler';
 129                 }
 130                 // Vector images have to be handled slightly differently
 131                 $tmpGlobals['wgMediaHandlers']['image/svg+xml'] = 'MockSvgHandler';
 132
 133                 $tmpHooks = $wgHooks;
 134                 $tmpHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 135                 $tmpHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 136                 $tmpGlobals['wgHooks'] = $tmpHooks;
 137                 # add a namespace shadowing a interwiki link, to test
 138                 # proper precedence when resolving links. (bug 51680)
 139                 $tmpGlobals['wgExtraNamespaces'] = array( 100 => 'MemoryAlpha' );
 140
 141                 $this->setMwGlobals( $tmpGlobals );
 142
 143                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
 144                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 145
 146                 $wgNamespaceAliases['Image'] = NS_FILE;
 147                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 148
 149                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
 150                 $wgContLang->resetNamespaces(); # reset namespace cache
 151         }
 152
 153         protected function tearDown() {
 154                 global $wgNamespaceAliases, $wgContLang;
 155
 156                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 157                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 158
 159                 // Restore backends
 160                 RepoGroup::destroySingleton();
 161                 FileBackendGroup::destroySingleton();
 162
 163                 // Remove temporary pages from the link cache
 164                 LinkCache::singleton()->clear();
 165
 166                 // Restore message cache (temporary pages and $wgUseDatabaseMessages)
 167                 MessageCache::destroyInstance();
 168
 169                 parent::tearDown();
 170
 171                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
 172                 $wgContLang->resetNamespaces(); # reset namespace cache
 173         }
 174
 175         public static function tearDownAfterClass() {
 176                 ParserTest::tearDownInterwikis();
 177                 parent::tearDownAfterClass();
 178         }
 179
 180         function addDBData() {
 181                 $this->tablesUsed[] = 'site_stats';
 182                 # disabled for performance
 183                 #$this->tablesUsed[] = 'image';
 184
 185                 # Update certain things in site_stats
 186                 $this->db->insert( 'site_stats',
 187                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 188                         __METHOD__
 189                 );
 190
 191                 $user = User::newFromId( 0 );
 192                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 193
 194                 # Upload DB table entries for files.
 195                 # We will upload the actual files later. Note that if anything causes LocalFile::load()
 196                 # to be triggered before then, it will break via maybeUpgrade() setting the fileExists
 197                 # member to false and storing it in cache.
 198                 # note that the size/width/height/bits/etc of the file
 199                 # are actually set by inspecting the file itself; the arguments
 200                 # to recordUpload2 have no effect.  That said, we try to make things
 201                 # match up so it is less confusing to readers of the code & tests.
 202                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 203                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 204                         $image->recordUpload2(
 205                                 '', // archive name
 206                                 'Upload of some lame file',
 207                                 'Some lame file',
 208                                 array(
 209                                         'size' => 7881,
 210                                         'width' => 1941,
 211                                         'height' => 220,
 212                                         'bits' => 8,
 213                                         'media_type' => MEDIATYPE_BITMAP,
 214                                         'mime' => 'image/jpeg',
 215                                         'metadata' => serialize( array() ),
 216                                         'sha1' => wfBaseConvert( '1', 16, 36, 31 ),
 217                                         'fileExists' => true ),
 218                                 $this->db->timestamp( '20010115123500' ), $user
 219                         );
 220                 }
 221
 222                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
 223                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 224                         $image->recordUpload2(
 225                                 '', // archive name
 226                                 'Upload of some lame thumbnail',
 227                                 'Some lame thumbnail',
 228                                 array(
 229                                         'size' => 22589,
 230                                         'width' => 135,
 231                                         'height' => 135,
 232                                         'bits' => 8,
 233                                         'media_type' => MEDIATYPE_BITMAP,
 234                                         'mime' => 'image/png',
 235                                         'metadata' => serialize( array() ),
 236                                         'sha1' => wfBaseConvert( '2', 16, 36, 31 ),
 237                                         'fileExists' => true ),
 238                                 $this->db->timestamp( '20130225203040' ), $user
 239                         );
 240                 }
 241
 242                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 243                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 244                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 245                         $image->recordUpload2(
 246                                 '', // archive name
 247                                 'zomgnotcensored',
 248                                 'Borderline image',
 249                                 array(
 250                                         'size' => 12345,
 251                                         'width' => 320,
 252                                         'height' => 240,
 253                                         'bits' => 24,
 254                                         'media_type' => MEDIATYPE_BITMAP,
 255                                         'mime' => 'image/jpeg',
 256                                         'metadata' => serialize( array() ),
 257                                         'sha1' => wfBaseConvert( '3', 16, 36, 31 ),
 258                                         'fileExists' => true ),
 259                                 $this->db->timestamp( '20010115123500' ), $user
 260                         );
 261                 }
 262                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
 263                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 264                         $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', array(
 265                                         'size'        => 12345,
 266                                         'width'       => 200,
 267                                         'height'      => 200,
 268                                         'bits'        => 24,
 269                                         'media_type'  => MEDIATYPE_DRAWING,
 270                                         'mime'        => 'image/svg+xml',
 271                                         'metadata'    => serialize( array() ),
 272                                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 273                                         'fileExists'  => true
 274                         ), $this->db->timestamp( '20010115123500' ), $user );
 275                 }
 276         }
 277
 278         //ParserTest setup/teardown functions
 279
 280         /**
 281          * Set up the global variables for a consistent environment for each test.
 282          * Ideally this should replace the global configuration entirely.
 283          */
 284         protected function setupGlobals( $opts = array(), $config = '' ) {
 285                 global $wgFileBackends;
 286                 # Find out values for some special options.
 287                 $lang =
 288                         self::getOptionValue( 'language', $opts, 'en' );
 289                 $variant =
 290                         self::getOptionValue( 'variant', $opts, false );
 291                 $maxtoclevel =
 292                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 293                 $linkHolderBatchSize =
 294                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 295
 296                 $uploadDir = $this->getUploadDir();
 297                 if ( $this->getCliArg( 'use-filebackend=' ) ) {
 298                         if ( self::$backendToUse ) {
 299                                 $backend = self::$backendToUse;
 300                         } else {
 301                                 $name = $this->getCliArg( 'use-filebackend=' );
 302                                 $useConfig = array();
 303                                 foreach ( $wgFileBackends as $conf ) {
 304                                         if ( $conf['name'] == $name ) {
 305                                                 $useConfig = $conf;
 306                                         }
 307                                 }
 308                                 $useConfig['name'] = 'local-backend'; // swap name
 309                                 unset( $useConfig['lockManager'] );
 310                                 unset( $useConfig['fileJournal'] );
 311                                 $class = $conf['class'];
 312                                 self::$backendToUse = new $class( $useConfig );
 313                                 $backend = self::$backendToUse;
 314                         }
 315                 } else {
 316                         # Replace with a mock. We do not care about generating real
 317                         # files on the filesystem, just need to expose the file
 318                         # informations.
 319                         $backend = new MockFileBackend( array(
 320                                 'name' => 'local-backend',
 321                                 'wikiId' => wfWikiId(),
 322                                 'containerPaths' => array(
 323                                         'local-public' => "$uploadDir",
 324                                         'local-thumb' => "$uploadDir/thumb",
 325                                 )
 326                         ) );
 327                 }
 328
 329                 $settings = array(
 330                         'wgLocalFileRepo' => array(
 331                                 'class' => 'LocalRepo',
 332                                 'name' => 'local',
 333                                 'url' => 'http://example.com/images',
 334                                 'hashLevels' => 2,
 335                                 'transformVia404' => false,
 336                                 'backend' => $backend
 337                         ),
 338                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 339                         'wgLanguageCode' => $lang,
 340                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 341                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 342                         'wgNamespacesWithSubpages' => array( NS_MAIN => isset( $opts['subpage'] ) ),
 343                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 344                         'wgMaxTocLevel' => $maxtoclevel,
 345                         'wgUseTeX' => isset( $opts['math'] ) || isset( $opts['texvc'] ),
 346                         'wgMathDirectory' => $uploadDir . '/math',
 347                         'wgDefaultLanguageVariant' => $variant,
 348                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 349                 );
 350
 351                 if ( $config ) {
 352                         $configLines = explode( "\n", $config );
 353
 354                         foreach ( $configLines as $line ) {
 355                                 list( $var, $value ) = explode( '=', $line, 2 );
 356
 357                                 $settings[$var] = eval( "return $value;" ); //???
 358                         }
 359                 }
 360
 361                 $this->savedGlobals = array();
 362
 363                 /** @since 1.20 */
 364                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 365
 366                 $langObj = Language::factory( $lang );
 367                 $settings['wgContLang'] = $langObj;
 368                 $settings['wgLang'] = $langObj;
 369
 370                 $context = new RequestContext();
 371                 $settings['wgOut'] = $context->getOutput();
 372                 $settings['wgUser'] = $context->getUser();
 373                 $settings['wgRequest'] = $context->getRequest();
 374
 375                 foreach ( $settings as $var => $val ) {
 376                         if ( array_key_exists( $var, $GLOBALS ) ) {
 377                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 378                         }
 379
 380                         $GLOBALS[$var] = $val;
 381                 }
 382
 383                 MagicWord::clearCache();
 384
 385                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 386                 RepoGroup::destroySingleton();
 387                 FileBackendGroup::destroySingleton();
 388
 389                 # Create dummy files in storage
 390                 $this->setupUploads();
 391
 392                 # Publish the articles after we have the final language set
 393                 $this->publishTestArticles();
 394
 395                 MessageCache::destroyInstance();
 396
 397                 return $context;
 398         }
 399
 400         /**
 401          * Get an FS upload directory (only applies to FSFileBackend)
 402          *
 403          * @return String: the directory
 404          */
 405         protected function getUploadDir() {
 406                 if ( $this->keepUploads ) {
 407                         $dir = wfTempDir() . '/mwParser-images';
 408
 409                         if ( is_dir( $dir ) ) {
 410                                 return $dir;
 411                         }
 412                 } else {
 413                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 414                 }
 415
 416                 // wfDebug( "Creating upload directory $dir\n" );
 417                 if ( file_exists( $dir ) ) {
 418                         wfDebug( "Already exists!\n" );
 419
 420                         return $dir;
 421                 }
 422
 423                 return $dir;
 424         }
 425
 426         /**
 427          * Create a dummy uploads directory which will contain a couple
 428          * of files in order to pass existence tests.
 429          *
 430          * @return String: the directory
 431          */
 432         protected function setupUploads() {
 433                 global $IP;
 434
 435                 $base = $this->getBaseDir();
 436                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 437                 $backend->prepare( array( 'dir' => "$base/local-public/3/3a" ) );
 438                 $backend->store( array(
 439                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/3/3a/Foobar.jpg"
 440                 ) );
 441                 $backend->prepare( array( 'dir' => "$base/local-public/e/ea" ) );
 442                 $backend->store( array(
 443                         'src' => "$IP/skins/monobook/wiki.png", 'dst' => "$base/local-public/e/ea/Thumb.png"
 444                 ) );
 445                 $backend->prepare( array( 'dir' => "$base/local-public/0/09" ) );
 446                 $backend->store( array(
 447                         'src' => "$IP/skins/monobook/headbg.jpg", 'dst' => "$base/local-public/0/09/Bad.jpg"
 448                 ) );
 449
 450                 // No helpful SVG file to copy, so make one ourselves
 451                 $tmpDir = wfTempDir();
 452                 $tempFsFile = new TempFSFile( "$tmpDir/Foobar.svg" );
 453                 $tempFsFile->autocollect(); // destroy file when $tempFsFile leaves scope
 454                 file_put_contents( "$tmpDir/Foobar.svg",
 455                         '<?xml version="1.0" encoding="utf-8"?>' .
 456                         '<svg xmlns="http://www.w3.org/2000/svg" width="200" height="200"><text>Foo</text></svg>' );
 457
 458                 $backend->prepare( array( 'dir' => "$base/local-public/f/ff" ) );
 459                 $backend->quickStore( array(
 460                         'src' => "$tmpDir/Foobar.svg", 'dst' => "$base/local-public/f/ff/Foobar.svg"
 461                 ) );
 462         }
 463
 464         /**
 465          * Restore default values and perform any necessary clean-up
 466          * after each test runs.
 467          */
 468         protected function teardownGlobals() {
 469                 $this->teardownUploads();
 470
 471                 foreach ( $this->savedGlobals as $var => $val ) {
 472                         $GLOBALS[$var] = $val;
 473                 }
 474         }
 475
 476         /**
 477          * Remove the dummy uploads directory
 478          */
 479         private function teardownUploads() {
 480                 if ( $this->keepUploads ) {
 481                         return;
 482                 }
 483
 484                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 485                 if ( $backend instanceof MockFileBackend ) {
 486                         # In memory backend, so dont bother cleaning them up.
 487                         return;
 488                 }
 489
 490                 $base = $this->getBaseDir();
 491                 // delete the files first, then the dirs.
 492                 self::deleteFiles(
 493                         array(
 494                                 "$base/local-public/3/3a/Foobar.jpg",
 495                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 496                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 497                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 498                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 499                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 500                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 501                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 502                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 503                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 504                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 505                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 506                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 507                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 508                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 509
 510                                 "$base/local-public/e/ea/Thumb.png",
 511
 512                                 "$base/local-public/0/09/Bad.jpg",
 513
 514                                 "$base/local-public/f/ff/Foobar.svg",
 515                                 "$base/local-thumb/f/ff/Foobar.svg/180px-Foobar.svg.jpg",
 516                                 "$base/local-thumb/f/ff/Foobar.svg/270px-Foobar.svg.jpg",
 517                                 "$base/local-thumb/f/ff/Foobar.svg/360px-Foobar.svg.jpg",
 518                                 "$base/local-thumb/f/ff/Foobar.svg/langde-180px-Foobar.svg.jpg",
 519                                 "$base/local-thumb/f/ff/Foobar.svg/langde-270px-Foobar.svg.jpg",
 520                                 "$base/local-thumb/f/ff/Foobar.svg/langde-360px-Foobar.svg.jpg",
 521
 522                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 523                         )
 524                 );
 525         }
 526
 527         /**
 528          * Delete the specified files, if they exist.
 529          * @param $files Array: full paths to files to delete.
 530          */
 531         private static function deleteFiles( $files ) {
 532                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 533                 foreach ( $files as $file ) {
 534                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 535                 }
 536                 foreach ( $files as $file ) {
 537                         $tmp = $file;
 538                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 539                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 540                                         break;
 541                                 }
 542                         }
 543                 }
 544         }
 545
 546         protected function getBaseDir() {
 547                 return 'mwstore://local-backend';
 548         }
 549
 550         public function parserTestProvider() {
 551                 if ( $this->file === false ) {
 552                         global $wgParserTestFiles;
 553                         $this->file = $wgParserTestFiles[0];
 554                 }
 555
 556                 return new TestFileIterator( $this->file, $this );
 557         }
 558
 559         /**
 560          * Set the file from whose tests will be run by this instance
 561          */
 562         public function setParserTestFile( $filename ) {
 563                 $this->file = $filename;
 564         }
 565
 566         /**
 567          * @group medium
 568          * @dataProvider parserTestProvider
 569          */
 570         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 571                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 572                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 573                         //$this->markTestSkipped( 'Filtered out by the user' );
 574                         return;
 575                 }
 576
 577                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 578                         // parser tests frequently assume that the main namespace contains wikitext.
 579                         // @todo When setting up pages, force the content model. Only skip if
 580                         //        $wgtContentModelUseDB is false.
 581                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 582                                 . "skipping parser test: $desc" );
 583                 }
 584
 585                 wfDebug( "Running parser test: $desc\n" );
 586
 587                 $opts = $this->parseOptions( $opts );
 588                 $context = $this->setupGlobals( $opts, $config );
 589
 590                 $user = $context->getUser();
 591                 $options = ParserOptions::newFromContext( $context );
 592
 593                 if ( isset( $opts['title'] ) ) {
 594                         $titleText = $opts['title'];
 595                 } else {
 596                         $titleText = 'Parser test';
 597                 }
 598
 599                 $local = isset( $opts['local'] );
 600                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 601                 $parser = $this->getParser( $preprocessor );
 602
 603                 $title = Title::newFromText( $titleText );
 604
 605                 # Parser test requiring math. Make sure texvc is executable
 606                 # or just skip such tests.
 607                 if ( isset( $opts['math'] ) || isset( $opts['texvc'] ) ) {
 608                         global $wgTexvc;
 609
 610                         if ( !isset( $wgTexvc ) ) {
 611                                 $this->markTestSkipped( "SKIPPED: \$wgTexvc is not set" );
 612                         } elseif ( !is_executable( $wgTexvc ) ) {
 613                                 $this->markTestSkipped( "SKIPPED: texvc binary does not exist"
 614                                         . " or is not executable.\n"
 615                                         . "Current configuration is:\n\$wgTexvc = '$wgTexvc'" );
 616                         }
 617                 }
 618
 619                 if ( isset( $opts['pst'] ) ) {
 620                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 621                 } elseif ( isset( $opts['msg'] ) ) {
 622                         $out = $parser->transformMsg( $input, $options, $title );
 623                 } elseif ( isset( $opts['section'] ) ) {
 624                         $section = $opts['section'];
 625                         $out = $parser->getSection( $input, $section );
 626                 } elseif ( isset( $opts['replace'] ) ) {
 627                         $section = $opts['replace'][0];
 628                         $replace = $opts['replace'][1];
 629                         $out = $parser->replaceSection( $input, $section, $replace );
 630                 } elseif ( isset( $opts['comment'] ) ) {
 631                         $out = Linker::formatComment( $input, $title, $local );
 632                 } elseif ( isset( $opts['preload'] ) ) {
 633                         $out = $parser->getPreloadText( $input, $title, $options );
 634                 } else {
 635                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 636                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 637                         $out = $output->getText();
 638
 639                         if ( isset( $opts['showtitle'] ) ) {
 640                                 if ( $output->getTitleText() ) {
 641                                         $title = $output->getTitleText();
 642                                 }
 643
 644                                 $out = "$title\n$out";
 645                         }
 646
 647                         if ( isset( $opts['ill'] ) ) {
 648                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 649                         } elseif ( isset( $opts['cat'] ) ) {
 650                                 $outputPage = $context->getOutput();
 651                                 $outputPage->addCategoryLinks( $output->getCategories() );
 652                                 $cats = $outputPage->getCategoryLinks();
 653
 654                                 if ( isset( $cats['normal'] ) ) {
 655                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 656                                 } else {
 657                                         $out = '';
 658                                 }
 659                         }
 660                         $parser->mPreprocessor = null;
 661
 662                         $result = $this->tidy( $result );
 663                 }
 664
 665                 $this->teardownGlobals();
 666
 667                 $this->assertEquals( $result, $out, $desc );
 668         }
 669
 670         /**
 671          * Run a fuzz test series
 672          * Draw input from a set of test files
 673          *
 674          * @todo fixme Needs some work to not eat memory until the world explodes
 675          *
 676          * @group ParserFuzz
 677          */
 678         public function testFuzzTests() {
 679                 global $wgParserTestFiles;
 680
 681                 $files = $wgParserTestFiles;
 682
 683                 if ( $this->getCliArg( 'file=' ) ) {
 684                         $files = array( $this->getCliArg( 'file=' ) );
 685                 }
 686
 687                 $dict = $this->getFuzzInput( $files );
 688                 $dictSize = strlen( $dict );
 689                 $logMaxLength = log( $this->maxFuzzTestLength );
 690
 691                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 692
 693                 $user = new User;
 694                 $opts = ParserOptions::newFromUser( $user );
 695                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 696
 697                 $id = 1;
 698
 699                 while ( true ) {
 700
 701                         // Generate test input
 702                         mt_srand( ++$this->fuzzSeed );
 703                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 704                         $input = '';
 705
 706                         while ( strlen( $input ) < $totalLength ) {
 707                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 708                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 709                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 710                                 $input .= substr( $dict, $offset, $hairLength );
 711                         }
 712
 713                         $this->setupGlobals();
 714                         $parser = $this->getParser();
 715
 716                         // Run the test
 717                         try {
 718                                 $parser->parse( $input, $title, $opts );
 719                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 720                         } catch ( Exception $exception ) {
 721                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 722
 723                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\n" .
 724                                         "Input: $input_dump\n\nError: {$exception->getMessage()}\n\n" .
 725                                         "Backtrace: {$exception->getTraceAsString()}" );
 726                         }
 727
 728                         $this->teardownGlobals();
 729                         $parser->__destruct();
 730
 731                         if ( $id % 100 == 0 ) {
 732                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 733                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 734                                 if ( $usage > 90 ) {
 735                                         $ret = "Out of memory:\n";
 736                                         $memStats = $this->getMemoryBreakdown();
 737
 738                                         foreach ( $memStats as $name => $usage ) {
 739                                                 $ret .= "$name: $usage\n";
 740                                         }
 741
 742                                         throw new MWException( $ret );
 743                                 }
 744                         }
 745
 746                         $id++;
 747                 }
 748         }
 749
 750         //Various getter functions
 751
 752         /**
 753          * Get an input dictionary from a set of parser test files
 754          */
 755         function getFuzzInput( $filenames ) {
 756                 $dict = '';
 757
 758                 foreach ( $filenames as $filename ) {
 759                         $contents = file_get_contents( $filename );
 760                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 761
 762                         foreach ( $matches[1] as $match ) {
 763                                 $dict .= $match . "\n";
 764                         }
 765                 }
 766
 767                 return $dict;
 768         }
 769
 770         /**
 771          * Get a memory usage breakdown
 772          */
 773         function getMemoryBreakdown() {
 774                 $memStats = array();
 775
 776                 foreach ( $GLOBALS as $name => $value ) {
 777                         $memStats['$' . $name] = strlen( serialize( $value ) );
 778                 }
 779
 780                 $classes = get_declared_classes();
 781
 782                 foreach ( $classes as $class ) {
 783                         $rc = new ReflectionClass( $class );
 784                         $props = $rc->getStaticProperties();
 785                         $memStats[$class] = strlen( serialize( $props ) );
 786                         $methods = $rc->getMethods();
 787
 788                         foreach ( $methods as $method ) {
 789                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 790                         }
 791                 }
 792
 793                 $functions = get_defined_functions();
 794
 795                 foreach ( $functions['user'] as $function ) {
 796                         $rf = new ReflectionFunction( $function );
 797                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 798                 }
 799
 800                 asort( $memStats );
 801
 802                 return $memStats;
 803         }
 804
 805         /**
 806          * Get a Parser object
 807          */
 808         function getParser( $preprocessor = null ) {
 809                 global $wgParserConf;
 810
 811                 $class = $wgParserConf['class'];
 812                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 813
 814                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 815
 816                 return $parser;
 817         }
 818
 819         //Various action functions
 820
 821         public function addArticle( $name, $text, $line ) {
 822                 self::$articles[$name] = array( $text, $line );
 823         }
 824
 825         public function publishTestArticles() {
 826                 if ( empty( self::$articles ) ) {
 827                         return;
 828                 }
 829
 830                 foreach ( self::$articles as $name => $info ) {
 831                         list( $text, $line ) = $info;
 832                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 833                 }
 834         }
 835
 836         /**
 837          * Steal a callback function from the primary parser, save it for
 838          * application to our scary parser. If the hook is not installed,
 839          * abort processing of this file.
 840          *
 841          * @param $name String
 842          * @return Bool true if tag hook is present
 843          */
 844         public function requireHook( $name ) {
 845                 global $wgParser;
 846                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 847                 return isset( $wgParser->mTagHooks[$name] );
 848         }
 849
 850         public function requireFunctionHook( $name ) {
 851                 global $wgParser;
 852                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 853                 return isset( $wgParser->mFunctionHooks[$name] );
 854         }
 855
 856         //Various "cleanup" functions
 857
 858         /**
 859          * Run the "tidy" command on text if the $wgUseTidy
 860          * global is true
 861          *
 862          * @param $text String: the text to tidy
 863          * @return String
 864          */
 865         protected function tidy( $text ) {
 866                 global $wgUseTidy;
 867
 868                 if ( $wgUseTidy ) {
 869                         $text = MWTidy::tidy( $text );
 870                 }
 871
 872                 return $text;
 873         }
 874
 875         /**
 876          * Remove last character if it is a newline
 877          */
 878         public function removeEndingNewline( $s ) {
 879                 if ( substr( $s, -1 ) === "\n" ) {
 880                         return substr( $s, 0, -1 );
 881                 } else {
 882                         return $s;
 883                 }
 884         }
 885
 886         //Test options parser functions
 887
 888         protected function parseOptions( $instring ) {
 889                 $opts = array();
 890                 // foo
 891                 // foo=bar
 892                 // foo="bar baz"
 893                 // foo=[[bar baz]]
 894                 // foo=bar,"baz quux"
 895                 $regex = '/\b
 896                         ([\w-]+)                                                # Key
 897                         \b
 898                         (?:\s*
 899                                 =                                               # First sub-value
 900                                 \s*
 901                                 (
 902                                         "
 903                                                 [^"]*                   # Quoted val
 904                                         "
 905                                 |
 906                                         \[\[
 907                                                 [^]]*                   # Link target
 908                                         \]\]
 909                                 |
 910                                         [\w-]+                          # Plain word
 911                                 )
 912                                 (?:\s*
 913                                         ,                                       # Sub-vals 1..N
 914                                         \s*
 915                                         (
 916                                                 "[^"]*"                 # Quoted val
 917                                         |
 918                                                 \[\[[^]]*\]\]   # Link target
 919                                         |
 920                                                 [\w-]+                  # Plain word
 921                                         )
 922                                 )*
 923                         )?
 924                         /x';
 925
 926                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 927                         foreach ( $matches as $bits ) {
 928                                 array_shift( $bits );
 929                                 $key = strtolower( array_shift( $bits ) );
 930                                 if ( count( $bits ) == 0 ) {
 931                                         $opts[$key] = true;
 932                                 } elseif ( count( $bits ) == 1 ) {
 933                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 934                                 } else {
 935                                         // Array!
 936                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 937                                 }
 938                         }
 939                 }
 940
 941                 return $opts;
 942         }
 943
 944         protected function cleanupOption( $opt ) {
 945                 if ( substr( $opt, 0, 1 ) == '"' ) {
 946                         return substr( $opt, 1, -1 );
 947                 }
 948
 949                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 950                         return substr( $opt, 2, -2 );
 951                 }
 952
 953                 return $opt;
 954         }
 955
 956         /**
 957          * Use a regex to find out the value of an option
 958          * @param $key String: name of option val to retrieve
 959          * @param $opts Options array to look in
 960          * @param $default Mixed: default value returned if not found
 961          */
 962         protected static function getOptionValue( $key, $opts, $default ) {
 963                 $key = strtolower( $key );
 964
 965                 if ( isset( $opts[$key] ) ) {
 966                         return $opts[$key];
 967                 } else {
 968                         return $default;
 969                 }
 970         }
 971 }