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'       => 240,
 267                                         'height'      => 180,
 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 = $useConfig['class'];
 312                                 self::$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                         ) );
 323                 }
 324
 325                 $settings = array(
 326                         'wgLocalFileRepo' => array(
 327                                 'class' => 'LocalRepo',
 328                                 'name' => 'local',
 329                                 'url' => 'http://example.com/images',
 330                                 'hashLevels' => 2,
 331                                 'transformVia404' => false,
 332                                 'backend' => $backend
 333                         ),
 334                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 335                         'wgLanguageCode' => $lang,
 336                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 337                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 338                         'wgNamespacesWithSubpages' => array( NS_MAIN => isset( $opts['subpage'] ) ),
 339                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 340                         'wgThumbLimits' => array( self::getOptionValue( 'thumbsize', $opts, 180 ) ),
 341                         'wgMaxTocLevel' => $maxtoclevel,
 342                         'wgUseTeX' => isset( $opts['math'] ) || isset( $opts['texvc'] ),
 343                         'wgMathDirectory' => $uploadDir . '/math',
 344                         'wgDefaultLanguageVariant' => $variant,
 345                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 346                 );
 347
 348                 if ( $config ) {
 349                         $configLines = explode( "\n", $config );
 350
 351                         foreach ( $configLines as $line ) {
 352                                 list( $var, $value ) = explode( '=', $line, 2 );
 353
 354                                 $settings[$var] = eval( "return $value;" ); //???
 355                         }
 356                 }
 357
 358                 $this->savedGlobals = array();
 359
 360                 /** @since 1.20 */
 361                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 362
 363                 $langObj = Language::factory( $lang );
 364                 $settings['wgContLang'] = $langObj;
 365                 $settings['wgLang'] = $langObj;
 366
 367                 $context = new RequestContext();
 368                 $settings['wgOut'] = $context->getOutput();
 369                 $settings['wgUser'] = $context->getUser();
 370                 $settings['wgRequest'] = $context->getRequest();
 371
 372                 // We (re)set $wgThumbLimits to a single-element array above.
 373                 $context->getUser()->setOption( 'thumbsize', 0 );
 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                 $data = '<?xml version="1.0" encoding="utf-8"?>' .
 452                         '<svg xmlns="http://www.w3.org/2000/svg"' .
 453                         ' version="1.1" width="240" height="180"/>';
 454
 455                 $backend->prepare( array( 'dir' => "$base/local-public/f/ff" ) );
 456                 $backend->quickCreate( array(
 457                         'content' => $data, 'dst' => "$base/local-public/f/ff/Foobar.svg"
 458                 ) );
 459         }
 460
 461         /**
 462          * Restore default values and perform any necessary clean-up
 463          * after each test runs.
 464          */
 465         protected function teardownGlobals() {
 466                 $this->teardownUploads();
 467
 468                 foreach ( $this->savedGlobals as $var => $val ) {
 469                         $GLOBALS[$var] = $val;
 470                 }
 471         }
 472
 473         /**
 474          * Remove the dummy uploads directory
 475          */
 476         private function teardownUploads() {
 477                 if ( $this->keepUploads ) {
 478                         return;
 479                 }
 480
 481                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 482                 if ( $backend instanceof MockFileBackend ) {
 483                         # In memory backend, so dont bother cleaning them up.
 484                         return;
 485                 }
 486
 487                 $base = $this->getBaseDir();
 488                 // delete the files first, then the dirs.
 489                 self::deleteFiles(
 490                         array(
 491                                 "$base/local-public/3/3a/Foobar.jpg",
 492                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 493                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 494                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 495                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 496                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 497                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 498                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 499                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 500                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 501                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 502                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 503                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 504                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 505                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 506
 507                                 "$base/local-public/e/ea/Thumb.png",
 508
 509                                 "$base/local-public/0/09/Bad.jpg",
 510
 511                                 "$base/local-public/f/ff/Foobar.svg",
 512                                 "$base/local-thumb/f/ff/Foobar.svg/180px-Foobar.svg.jpg",
 513                                 "$base/local-thumb/f/ff/Foobar.svg/270px-Foobar.svg.jpg",
 514                                 "$base/local-thumb/f/ff/Foobar.svg/360px-Foobar.svg.jpg",
 515                                 "$base/local-thumb/f/ff/Foobar.svg/langde-180px-Foobar.svg.jpg",
 516                                 "$base/local-thumb/f/ff/Foobar.svg/langde-270px-Foobar.svg.jpg",
 517                                 "$base/local-thumb/f/ff/Foobar.svg/langde-360px-Foobar.svg.jpg",
 518
 519                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 520                         )
 521                 );
 522         }
 523
 524         /**
 525          * Delete the specified files, if they exist.
 526          * @param $files Array: full paths to files to delete.
 527          */
 528         private static function deleteFiles( $files ) {
 529                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 530                 foreach ( $files as $file ) {
 531                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 532                 }
 533                 foreach ( $files as $file ) {
 534                         $tmp = $file;
 535                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 536                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 537                                         break;
 538                                 }
 539                         }
 540                 }
 541         }
 542
 543         protected function getBaseDir() {
 544                 return 'mwstore://local-backend';
 545         }
 546
 547         public function parserTestProvider() {
 548                 if ( $this->file === false ) {
 549                         global $wgParserTestFiles;
 550                         $this->file = $wgParserTestFiles[0];
 551                 }
 552
 553                 return new TestFileIterator( $this->file, $this );
 554         }
 555
 556         /**
 557          * Set the file from whose tests will be run by this instance
 558          */
 559         public function setParserTestFile( $filename ) {
 560                 $this->file = $filename;
 561         }
 562
 563         /**
 564          * @group medium
 565          * @dataProvider parserTestProvider
 566          */
 567         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 568                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 569                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 570                         //$this->markTestSkipped( 'Filtered out by the user' );
 571                         return;
 572                 }
 573
 574                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 575                         // parser tests frequently assume that the main namespace contains wikitext.
 576                         // @todo When setting up pages, force the content model. Only skip if
 577                         //        $wgtContentModelUseDB is false.
 578                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 579                                 . "skipping parser test: $desc" );
 580                 }
 581
 582                 wfDebug( "Running parser test: $desc\n" );
 583
 584                 $opts = $this->parseOptions( $opts );
 585                 $context = $this->setupGlobals( $opts, $config );
 586
 587                 $user = $context->getUser();
 588                 $options = ParserOptions::newFromContext( $context );
 589
 590                 if ( isset( $opts['title'] ) ) {
 591                         $titleText = $opts['title'];
 592                 } else {
 593                         $titleText = 'Parser test';
 594                 }
 595
 596                 $local = isset( $opts['local'] );
 597                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 598                 $parser = $this->getParser( $preprocessor );
 599
 600                 $title = Title::newFromText( $titleText );
 601
 602                 # Parser test requiring math. Make sure texvc is executable
 603                 # or just skip such tests.
 604                 if ( isset( $opts['math'] ) || isset( $opts['texvc'] ) ) {
 605                         global $wgTexvc;
 606
 607                         if ( !isset( $wgTexvc ) ) {
 608                                 $this->markTestSkipped( "SKIPPED: \$wgTexvc is not set" );
 609                         } elseif ( !is_executable( $wgTexvc ) ) {
 610                                 $this->markTestSkipped( "SKIPPED: texvc binary does not exist"
 611                                         . " or is not executable.\n"
 612                                         . "Current configuration is:\n\$wgTexvc = '$wgTexvc'" );
 613                         }
 614                 }
 615
 616                 if ( isset( $opts['pst'] ) ) {
 617                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 618                 } elseif ( isset( $opts['msg'] ) ) {
 619                         $out = $parser->transformMsg( $input, $options, $title );
 620                 } elseif ( isset( $opts['section'] ) ) {
 621                         $section = $opts['section'];
 622                         $out = $parser->getSection( $input, $section );
 623                 } elseif ( isset( $opts['replace'] ) ) {
 624                         $section = $opts['replace'][0];
 625                         $replace = $opts['replace'][1];
 626                         $out = $parser->replaceSection( $input, $section, $replace );
 627                 } elseif ( isset( $opts['comment'] ) ) {
 628                         $out = Linker::formatComment( $input, $title, $local );
 629                 } elseif ( isset( $opts['preload'] ) ) {
 630                         $out = $parser->getPreloadText( $input, $title, $options );
 631                 } else {
 632                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 633                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 634                         $out = $output->getText();
 635
 636                         if ( isset( $opts['showtitle'] ) ) {
 637                                 if ( $output->getTitleText() ) {
 638                                         $title = $output->getTitleText();
 639                                 }
 640
 641                                 $out = "$title\n$out";
 642                         }
 643
 644                         if ( isset( $opts['ill'] ) ) {
 645                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 646                         } elseif ( isset( $opts['cat'] ) ) {
 647                                 $outputPage = $context->getOutput();
 648                                 $outputPage->addCategoryLinks( $output->getCategories() );
 649                                 $cats = $outputPage->getCategoryLinks();
 650
 651                                 if ( isset( $cats['normal'] ) ) {
 652                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 653                                 } else {
 654                                         $out = '';
 655                                 }
 656                         }
 657                         $parser->mPreprocessor = null;
 658
 659                         $result = $this->tidy( $result );
 660                 }
 661
 662                 $this->teardownGlobals();
 663
 664                 $this->assertEquals( $result, $out, $desc );
 665         }
 666
 667         /**
 668          * Run a fuzz test series
 669          * Draw input from a set of test files
 670          *
 671          * @todo fixme Needs some work to not eat memory until the world explodes
 672          *
 673          * @group ParserFuzz
 674          */
 675         public function testFuzzTests() {
 676                 global $wgParserTestFiles;
 677
 678                 $files = $wgParserTestFiles;
 679
 680                 if ( $this->getCliArg( 'file=' ) ) {
 681                         $files = array( $this->getCliArg( 'file=' ) );
 682                 }
 683
 684                 $dict = $this->getFuzzInput( $files );
 685                 $dictSize = strlen( $dict );
 686                 $logMaxLength = log( $this->maxFuzzTestLength );
 687
 688                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 689
 690                 $user = new User;
 691                 $opts = ParserOptions::newFromUser( $user );
 692                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 693
 694                 $id = 1;
 695
 696                 while ( true ) {
 697
 698                         // Generate test input
 699                         mt_srand( ++$this->fuzzSeed );
 700                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 701                         $input = '';
 702
 703                         while ( strlen( $input ) < $totalLength ) {
 704                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 705                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 706                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 707                                 $input .= substr( $dict, $offset, $hairLength );
 708                         }
 709
 710                         $this->setupGlobals();
 711                         $parser = $this->getParser();
 712
 713                         // Run the test
 714                         try {
 715                                 $parser->parse( $input, $title, $opts );
 716                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 717                         } catch ( Exception $exception ) {
 718                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 719
 720                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\n" .
 721                                         "Input: $input_dump\n\nError: {$exception->getMessage()}\n\n" .
 722                                         "Backtrace: {$exception->getTraceAsString()}" );
 723                         }
 724
 725                         $this->teardownGlobals();
 726                         $parser->__destruct();
 727
 728                         if ( $id % 100 == 0 ) {
 729                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 730                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 731                                 if ( $usage > 90 ) {
 732                                         $ret = "Out of memory:\n";
 733                                         $memStats = $this->getMemoryBreakdown();
 734
 735                                         foreach ( $memStats as $name => $usage ) {
 736                                                 $ret .= "$name: $usage\n";
 737                                         }
 738
 739                                         throw new MWException( $ret );
 740                                 }
 741                         }
 742
 743                         $id++;
 744                 }
 745         }
 746
 747         //Various getter functions
 748
 749         /**
 750          * Get an input dictionary from a set of parser test files
 751          */
 752         function getFuzzInput( $filenames ) {
 753                 $dict = '';
 754
 755                 foreach ( $filenames as $filename ) {
 756                         $contents = file_get_contents( $filename );
 757                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 758
 759                         foreach ( $matches[1] as $match ) {
 760                                 $dict .= $match . "\n";
 761                         }
 762                 }
 763
 764                 return $dict;
 765         }
 766
 767         /**
 768          * Get a memory usage breakdown
 769          */
 770         function getMemoryBreakdown() {
 771                 $memStats = array();
 772
 773                 foreach ( $GLOBALS as $name => $value ) {
 774                         $memStats['$' . $name] = strlen( serialize( $value ) );
 775                 }
 776
 777                 $classes = get_declared_classes();
 778
 779                 foreach ( $classes as $class ) {
 780                         $rc = new ReflectionClass( $class );
 781                         $props = $rc->getStaticProperties();
 782                         $memStats[$class] = strlen( serialize( $props ) );
 783                         $methods = $rc->getMethods();
 784
 785                         foreach ( $methods as $method ) {
 786                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 787                         }
 788                 }
 789
 790                 $functions = get_defined_functions();
 791
 792                 foreach ( $functions['user'] as $function ) {
 793                         $rf = new ReflectionFunction( $function );
 794                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 795                 }
 796
 797                 asort( $memStats );
 798
 799                 return $memStats;
 800         }
 801
 802         /**
 803          * Get a Parser object
 804          */
 805         function getParser( $preprocessor = null ) {
 806                 global $wgParserConf;
 807
 808                 $class = $wgParserConf['class'];
 809                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 810
 811                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 812
 813                 return $parser;
 814         }
 815
 816         //Various action functions
 817
 818         public function addArticle( $name, $text, $line ) {
 819                 self::$articles[$name] = array( $text, $line );
 820         }
 821
 822         public function publishTestArticles() {
 823                 if ( empty( self::$articles ) ) {
 824                         return;
 825                 }
 826
 827                 foreach ( self::$articles as $name => $info ) {
 828                         list( $text, $line ) = $info;
 829                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 830                 }
 831         }
 832
 833         /**
 834          * Steal a callback function from the primary parser, save it for
 835          * application to our scary parser. If the hook is not installed,
 836          * abort processing of this file.
 837          *
 838          * @param $name String
 839          * @return Bool true if tag hook is present
 840          */
 841         public function requireHook( $name ) {
 842                 global $wgParser;
 843                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 844                 return isset( $wgParser->mTagHooks[$name] );
 845         }
 846
 847         public function requireFunctionHook( $name ) {
 848                 global $wgParser;
 849                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 850                 return isset( $wgParser->mFunctionHooks[$name] );
 851         }
 852
 853         //Various "cleanup" functions
 854
 855         /**
 856          * Run the "tidy" command on text if the $wgUseTidy
 857          * global is true
 858          *
 859          * @param $text String: the text to tidy
 860          * @return String
 861          */
 862         protected function tidy( $text ) {
 863                 global $wgUseTidy;
 864
 865                 if ( $wgUseTidy ) {
 866                         $text = MWTidy::tidy( $text );
 867                 }
 868
 869                 return $text;
 870         }
 871
 872         /**
 873          * Remove last character if it is a newline
 874          */
 875         public function removeEndingNewline( $s ) {
 876                 if ( substr( $s, -1 ) === "\n" ) {
 877                         return substr( $s, 0, -1 );
 878                 } else {
 879                         return $s;
 880                 }
 881         }
 882
 883         //Test options parser functions
 884
 885         protected function parseOptions( $instring ) {
 886                 $opts = array();
 887                 // foo
 888                 // foo=bar
 889                 // foo="bar baz"
 890                 // foo=[[bar baz]]
 891                 // foo=bar,"baz quux"
 892                 $regex = '/\b
 893                         ([\w-]+)                                                # Key
 894                         \b
 895                         (?:\s*
 896                                 =                                               # First sub-value
 897                                 \s*
 898                                 (
 899                                         "
 900                                                 [^"]*                   # Quoted val
 901                                         "
 902                                 |
 903                                         \[\[
 904                                                 [^]]*                   # Link target
 905                                         \]\]
 906                                 |
 907                                         [\w-]+                          # Plain word
 908                                 )
 909                                 (?:\s*
 910                                         ,                                       # Sub-vals 1..N
 911                                         \s*
 912                                         (
 913                                                 "[^"]*"                 # Quoted val
 914                                         |
 915                                                 \[\[[^]]*\]\]   # Link target
 916                                         |
 917                                                 [\w-]+                  # Plain word
 918                                         )
 919                                 )*
 920                         )?
 921                         /x';
 922
 923                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 924                         foreach ( $matches as $bits ) {
 925                                 array_shift( $bits );
 926                                 $key = strtolower( array_shift( $bits ) );
 927                                 if ( count( $bits ) == 0 ) {
 928                                         $opts[$key] = true;
 929                                 } elseif ( count( $bits ) == 1 ) {
 930                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 931                                 } else {
 932                                         // Array!
 933                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 934                                 }
 935                         }
 936                 }
 937
 938                 return $opts;
 939         }
 940
 941         protected function cleanupOption( $opt ) {
 942                 if ( substr( $opt, 0, 1 ) == '"' ) {
 943                         return substr( $opt, 1, -1 );
 944                 }
 945
 946                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 947                         return substr( $opt, 2, -2 );
 948                 }
 949
 950                 return $opt;
 951         }
 952
 953         /**
 954          * Use a regex to find out the value of an option
 955          * @param $key String: name of option val to retrieve
 956          * @param $opts Options array to look in
 957          * @param $default Mixed: default value returned if not found
 958          */
 959         protected static function getOptionValue( $key, $opts, $default ) {
 960                 $key = strtolower( $key );
 961
 962                 if ( isset( $opts[$key] ) ) {
 963                         return $opts[$key];
 964                 } else {
 965                         return $default;
 966                 }
 967         }
 968 }