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         public $transparentHooks = array();
  29
  30         //Fuzz test
  31         public $maxFuzzTestLength = 300;
  32         public $fuzzSeed = 0;
  33         public $memoryLimit = 50;
  34
  35         /**
  36          * @var DjVuSupport
  37          */
  38         private $djVuSupport;
  39
  40         protected $file = false;
  41
  42         public static function setUpBeforeClass() {
  43                 // Inject ParserTest well-known interwikis
  44                 ParserTest::setupInterwikis();
  45         }
  46
  47         protected function setUp() {
  48                 global $wgNamespaceAliases, $wgContLang;
  49                 global $wgHooks, $IP;
  50
  51                 parent::setUp();
  52
  53                 //Setup CLI arguments
  54                 if ( $this->getCliArg( 'regex=' ) ) {
  55                         $this->regex = $this->getCliArg( 'regex=' );
  56                 } else {
  57                         # Matches anything
  58                         $this->regex = '';
  59                 }
  60
  61                 $this->keepUploads = $this->getCliArg( 'keep-uploads' );
  62
  63                 $tmpGlobals = array();
  64
  65                 $tmpGlobals['wgLanguageCode'] = 'en';
  66                 $tmpGlobals['wgContLang'] = Language::factory( 'en' );
  67                 $tmpGlobals['wgSitename'] = 'MediaWiki';
  68                 $tmpGlobals['wgServer'] = 'http://example.org';
  69                 $tmpGlobals['wgServerName'] = 'example.org';
  70                 $tmpGlobals['wgScript'] = '/index.php';
  71                 $tmpGlobals['wgScriptPath'] = '/';
  72                 $tmpGlobals['wgArticlePath'] = '/wiki/$1';
  73                 $tmpGlobals['wgActionPaths'] = array();
  74                 $tmpGlobals['wgVariantArticlePath'] = false;
  75                 $tmpGlobals['wgExtensionAssetsPath'] = '/extensions';
  76                 $tmpGlobals['wgStylePath'] = '/skins';
  77                 $tmpGlobals['wgEnableUploads'] = true;
  78                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  79                 $tmpGlobals['wgLocalFileRepo'] = array(
  80                         'class' => 'LocalRepo',
  81                         'name' => 'local',
  82                         'url' => 'http://example.com/images',
  83                         'hashLevels' => 2,
  84                         'transformVia404' => false,
  85                         'backend' => 'local-backend'
  86                 );
  87                 $tmpGlobals['wgForeignFileRepos'] = array();
  88                 $tmpGlobals['wgDefaultExternalStore'] = array();
  89                 $tmpGlobals['wgEnableParserCache'] = false;
  90                 $tmpGlobals['wgCapitalLinks'] = true;
  91                 $tmpGlobals['wgNoFollowLinks'] = true;
  92                 $tmpGlobals['wgNoFollowDomainExceptions'] = array();
  93                 $tmpGlobals['wgExternalLinkTarget'] = false;
  94                 $tmpGlobals['wgThumbnailScriptPath'] = false;
  95                 $tmpGlobals['wgUseImageResize'] = true;
  96                 $tmpGlobals['wgAllowExternalImages'] = true;
  97                 $tmpGlobals['wgRawHtml'] = false;
  98                 $tmpGlobals['wgUseTidy'] = false;
  99                 $tmpGlobals['wgAlwaysUseTidy'] = false;
 100                 $tmpGlobals['wgWellFormedXml'] = true;
 101                 $tmpGlobals['wgAllowMicrodataAttributes'] = true;
 102                 $tmpGlobals['wgExperimentalHtmlIds'] = false;
 103                 $tmpGlobals['wgAdaptiveMessageCache'] = true;
 104                 $tmpGlobals['wgUseDatabaseMessages'] = true;
 105                 $tmpGlobals['wgLocaltimezone'] = 'UTC';
 106                 $tmpGlobals['wgDeferredUpdateList'] = array();
 107                 $tmpGlobals['wgGroupPermissions'] = array(
 108                         '*' => array(
 109                                 'createaccount' => true,
 110                                 'read' => true,
 111                                 'edit' => true,
 112                                 'createpage' => true,
 113                                 'createtalk' => true,
 114                 ) );
 115                 $tmpGlobals['wgNamespaceProtection'] = array( NS_MEDIAWIKI => 'editinterface' );
 116
 117                 $tmpGlobals['wgParser'] = new StubObject(
 118                         'wgParser', $GLOBALS['wgParserConf']['class'],
 119                         array( $GLOBALS['wgParserConf'] ) );
 120
 121                 $tmpGlobals['wgFileExtensions'][] = 'svg';
 122                 $tmpGlobals['wgSVGConverter'] = 'rsvg';
 123                 $tmpGlobals['wgSVGConverters']['rsvg'] =
 124                         '$path/rsvg-convert -w $width -h $height $input -o $output';
 125
 126                 if ( $GLOBALS['wgStyleDirectory'] === false ) {
 127                         $tmpGlobals['wgStyleDirectory'] = "$IP/skins";
 128                 }
 129
 130                 # Replace all media handlers with a mock. We do not need to generate
 131                 # actual thumbnails to do parser testing, we only care about receiving
 132                 # a ThumbnailImage properly initialized.
 133                 global $wgMediaHandlers;
 134                 foreach ( $wgMediaHandlers as $type => $handler ) {
 135                         $tmpGlobals['wgMediaHandlers'][$type] = 'MockBitmapHandler';
 136                 }
 137                 // Vector images have to be handled slightly differently
 138                 $tmpGlobals['wgMediaHandlers']['image/svg+xml'] = 'MockSvgHandler';
 139
 140                 // DjVu images have to be handled slightly differently
 141                 $tmpGlobals['wgMediaHandlers']['image/vnd.djvu'] = 'MockDjVuHandler';
 142
 143                 $tmpHooks = $wgHooks;
 144                 $tmpHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 145                 $tmpHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 146                 $tmpGlobals['wgHooks'] = $tmpHooks;
 147                 # add a namespace shadowing a interwiki link, to test
 148                 # proper precedence when resolving links. (bug 51680)
 149                 $tmpGlobals['wgExtraNamespaces'] = array( 100 => 'MemoryAlpha' );
 150
 151                 $tmpGlobals['wgLocalInterwikis'] = array( 'local', 'mi' );
 152                 # "extra language links"
 153                 # see https://gerrit.wikimedia.org/r/111390
 154                 $tmpGlobals['wgExtraInterlanguageLinkPrefixes'] = array( 'mul' );
 155
 156                 //DjVu support
 157                 $this->djVuSupport = new DjVuSupport();
 158
 159                 $this->setMwGlobals( $tmpGlobals );
 160
 161                 $this->savedWeirdGlobals['image_alias'] = $wgNamespaceAliases['Image'];
 162                 $this->savedWeirdGlobals['image_talk_alias'] = $wgNamespaceAliases['Image_talk'];
 163
 164                 $wgNamespaceAliases['Image'] = NS_FILE;
 165                 $wgNamespaceAliases['Image_talk'] = NS_FILE_TALK;
 166
 167                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
 168                 $wgContLang->resetNamespaces(); # reset namespace cache
 169         }
 170
 171         protected function tearDown() {
 172                 global $wgNamespaceAliases, $wgContLang;
 173
 174                 $wgNamespaceAliases['Image'] = $this->savedWeirdGlobals['image_alias'];
 175                 $wgNamespaceAliases['Image_talk'] = $this->savedWeirdGlobals['image_talk_alias'];
 176
 177                 // Restore backends
 178                 RepoGroup::destroySingleton();
 179                 FileBackendGroup::destroySingleton();
 180
 181                 // Remove temporary pages from the link cache
 182                 LinkCache::singleton()->clear();
 183
 184                 // Restore message cache (temporary pages and $wgUseDatabaseMessages)
 185                 MessageCache::destroyInstance();
 186
 187                 parent::tearDown();
 188
 189                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
 190                 $wgContLang->resetNamespaces(); # reset namespace cache
 191         }
 192
 193         public static function tearDownAfterClass() {
 194                 ParserTest::tearDownInterwikis();
 195                 parent::tearDownAfterClass();
 196         }
 197
 198         function addDBData() {
 199                 $this->tablesUsed[] = 'site_stats';
 200                 # disabled for performance
 201                 #$this->tablesUsed[] = 'image';
 202
 203                 # Update certain things in site_stats
 204                 $this->db->insert( 'site_stats',
 205                         array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ),
 206                         __METHOD__
 207                 );
 208
 209                 $user = User::newFromId( 0 );
 210                 LinkCache::singleton()->clear(); # Avoids the odd failure at creating the nullRevision
 211
 212                 # Upload DB table entries for files.
 213                 # We will upload the actual files later. Note that if anything causes LocalFile::load()
 214                 # to be triggered before then, it will break via maybeUpgrade() setting the fileExists
 215                 # member to false and storing it in cache.
 216                 # note that the size/width/height/bits/etc of the file
 217                 # are actually set by inspecting the file itself; the arguments
 218                 # to recordUpload2 have no effect.  That said, we try to make things
 219                 # match up so it is less confusing to readers of the code & tests.
 220                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
 221                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 222                         $image->recordUpload2(
 223                                 '', // archive name
 224                                 'Upload of some lame file',
 225                                 'Some lame file',
 226                                 array(
 227                                         'size' => 7881,
 228                                         'width' => 1941,
 229                                         'height' => 220,
 230                                         'bits' => 8,
 231                                         'media_type' => MEDIATYPE_BITMAP,
 232                                         'mime' => 'image/jpeg',
 233                                         'metadata' => serialize( array() ),
 234                                         'sha1' => wfBaseConvert( '1', 16, 36, 31 ),
 235                                         'fileExists' => true ),
 236                                 $this->db->timestamp( '20010115123500' ), $user
 237                         );
 238                 }
 239
 240                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
 241                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 242                         $image->recordUpload2(
 243                                 '', // archive name
 244                                 'Upload of some lame thumbnail',
 245                                 'Some lame thumbnail',
 246                                 array(
 247                                         'size' => 22589,
 248                                         'width' => 135,
 249                                         'height' => 135,
 250                                         'bits' => 8,
 251                                         'media_type' => MEDIATYPE_BITMAP,
 252                                         'mime' => 'image/png',
 253                                         'metadata' => serialize( array() ),
 254                                         'sha1' => wfBaseConvert( '2', 16, 36, 31 ),
 255                                         'fileExists' => true ),
 256                                 $this->db->timestamp( '20130225203040' ), $user
 257                         );
 258                 }
 259
 260                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 261                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
 262                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 263                         $image->recordUpload2(
 264                                 '', // archive name
 265                                 'zomgnotcensored',
 266                                 'Borderline image',
 267                                 array(
 268                                         'size' => 12345,
 269                                         'width' => 320,
 270                                         'height' => 240,
 271                                         'bits' => 24,
 272                                         'media_type' => MEDIATYPE_BITMAP,
 273                                         'mime' => 'image/jpeg',
 274                                         'metadata' => serialize( array() ),
 275                                         'sha1' => wfBaseConvert( '3', 16, 36, 31 ),
 276                                         'fileExists' => true ),
 277                                 $this->db->timestamp( '20010115123500' ), $user
 278                         );
 279                 }
 280                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
 281                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 282                         $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', array(
 283                                         'size'        => 12345,
 284                                         'width'       => 240,
 285                                         'height'      => 180,
 286                                         'bits'        => 0,
 287                                         'media_type'  => MEDIATYPE_DRAWING,
 288                                         'mime'        => 'image/svg+xml',
 289                                         'metadata'    => serialize( array() ),
 290                                         'sha1'        => wfBaseConvert( '', 16, 36, 31 ),
 291                                         'fileExists'  => true
 292                         ), $this->db->timestamp( '20010115123500' ), $user );
 293                 }
 294
 295                 # A DjVu file
 296                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'LoremIpsum.djvu' ) );
 297                 if ( !$this->db->selectField( 'image', '1', array( 'img_name' => $image->getName() ) ) ) {
 298                         $image->recordUpload2( '', 'Upload a DjVu', 'A DjVu', array(
 299                                 'size' => 3249,
 300                                 'width' => 2480,
 301                                 'height' => 3508,
 302                                 'bits' => 0,
 303                                 'media_type' => MEDIATYPE_BITMAP,
 304                                 'mime' => 'image/vnd.djvu',
 305                                 'metadata' => '<?xml version="1.0" ?>
 306 <!DOCTYPE DjVuXML PUBLIC "-//W3C//DTD DjVuXML 1.1//EN" "pubtext/DjVuXML-s.dtd">
 307 <DjVuXML>
 308 <HEAD></HEAD>
 309 <BODY><OBJECT height="3508" width="2480">
 310 <PARAM name="DPI" value="300" />
 311 <PARAM name="GAMMA" value="2.2" />
 312 </OBJECT>
 313 <OBJECT height="3508" width="2480">
 314 <PARAM name="DPI" value="300" />
 315 <PARAM name="GAMMA" value="2.2" />
 316 </OBJECT>
 317 <OBJECT height="3508" width="2480">
 318 <PARAM name="DPI" value="300" />
 319 <PARAM name="GAMMA" value="2.2" />
 320 </OBJECT>
 321 <OBJECT height="3508" width="2480">
 322 <PARAM name="DPI" value="300" />
 323 <PARAM name="GAMMA" value="2.2" />
 324 </OBJECT>
 325 <OBJECT height="3508" width="2480">
 326 <PARAM name="DPI" value="300" />
 327 <PARAM name="GAMMA" value="2.2" />
 328 </OBJECT>
 329 </BODY>
 330 </DjVuXML>',
 331                                 'sha1' => wfBaseConvert( '', 16, 36, 31 ),
 332                                 'fileExists' => true
 333                         ), $this->db->timestamp( '20140115123600' ), $user );
 334                 }
 335         }
 336
 337         //ParserTest setup/teardown functions
 338
 339         /**
 340          * Set up the global variables for a consistent environment for each test.
 341          * Ideally this should replace the global configuration entirely.
 342          */
 343         protected function setupGlobals( $opts = array(), $config = '' ) {
 344                 global $wgFileBackends;
 345                 # Find out values for some special options.
 346                 $lang =
 347                         self::getOptionValue( 'language', $opts, 'en' );
 348                 $variant =
 349                         self::getOptionValue( 'variant', $opts, false );
 350                 $maxtoclevel =
 351                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 352                 $linkHolderBatchSize =
 353                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 354
 355                 $uploadDir = $this->getUploadDir();
 356                 if ( $this->getCliArg( 'use-filebackend=' ) ) {
 357                         if ( self::$backendToUse ) {
 358                                 $backend = self::$backendToUse;
 359                         } else {
 360                                 $name = $this->getCliArg( 'use-filebackend=' );
 361                                 $useConfig = array();
 362                                 foreach ( $wgFileBackends as $conf ) {
 363                                         if ( $conf['name'] == $name ) {
 364                                                 $useConfig = $conf;
 365                                         }
 366                                 }
 367                                 $useConfig['name'] = 'local-backend'; // swap name
 368                                 unset( $useConfig['lockManager'] );
 369                                 unset( $useConfig['fileJournal'] );
 370                                 $class = $useConfig['class'];
 371                                 self::$backendToUse = new $class( $useConfig );
 372                                 $backend = self::$backendToUse;
 373                         }
 374                 } else {
 375                         # Replace with a mock. We do not care about generating real
 376                         # files on the filesystem, just need to expose the file
 377                         # informations.
 378                         $backend = new MockFileBackend( array(
 379                                 'name' => 'local-backend',
 380                                 'wikiId' => wfWikiId()
 381                         ) );
 382                 }
 383
 384                 $settings = array(
 385                         'wgLocalFileRepo' => array(
 386                                 'class' => 'LocalRepo',
 387                                 'name' => 'local',
 388                                 'url' => 'http://example.com/images',
 389                                 'hashLevels' => 2,
 390                                 'transformVia404' => false,
 391                                 'backend' => $backend
 392                         ),
 393                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 394                         'wgLanguageCode' => $lang,
 395                         'wgDBprefix' => $this->db->getType() != 'oracle' ? 'unittest_' : 'ut_',
 396                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 397                         'wgNamespacesWithSubpages' => array( NS_MAIN => isset( $opts['subpage'] ) ),
 398                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 399                         'wgThumbLimits' => array( self::getOptionValue( 'thumbsize', $opts, 180 ) ),
 400                         'wgMaxTocLevel' => $maxtoclevel,
 401                         'wgUseTeX' => isset( $opts['math'] ) || isset( $opts['texvc'] ),
 402                         'wgMathDirectory' => $uploadDir . '/math',
 403                         'wgDefaultLanguageVariant' => $variant,
 404                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 405                 );
 406
 407                 if ( $config ) {
 408                         $configLines = explode( "\n", $config );
 409
 410                         foreach ( $configLines as $line ) {
 411                                 list( $var, $value ) = explode( '=', $line, 2 );
 412
 413                                 $settings[$var] = eval( "return $value;" ); //???
 414                         }
 415                 }
 416
 417                 $this->savedGlobals = array();
 418
 419                 /** @since 1.20 */
 420                 wfRunHooks( 'ParserTestGlobals', array( &$settings ) );
 421
 422                 $langObj = Language::factory( $lang );
 423                 $settings['wgContLang'] = $langObj;
 424                 $settings['wgLang'] = $langObj;
 425
 426                 $context = new RequestContext();
 427                 $settings['wgOut'] = $context->getOutput();
 428                 $settings['wgUser'] = $context->getUser();
 429                 $settings['wgRequest'] = $context->getRequest();
 430
 431                 // We (re)set $wgThumbLimits to a single-element array above.
 432                 $context->getUser()->setOption( 'thumbsize', 0 );
 433
 434                 foreach ( $settings as $var => $val ) {
 435                         if ( array_key_exists( $var, $GLOBALS ) ) {
 436                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 437                         }
 438
 439                         $GLOBALS[$var] = $val;
 440                 }
 441
 442                 MagicWord::clearCache();
 443
 444                 # The entries saved into RepoGroup cache with previous globals will be wrong.
 445                 RepoGroup::destroySingleton();
 446                 FileBackendGroup::destroySingleton();
 447
 448                 # Create dummy files in storage
 449                 $this->setupUploads();
 450
 451                 # Publish the articles after we have the final language set
 452                 $this->publishTestArticles();
 453
 454                 MessageCache::destroyInstance();
 455
 456                 return $context;
 457         }
 458
 459         /**
 460          * Get an FS upload directory (only applies to FSFileBackend)
 461          *
 462          * @return string The directory
 463          */
 464         protected function getUploadDir() {
 465                 if ( $this->keepUploads ) {
 466                         $dir = wfTempDir() . '/mwParser-images';
 467
 468                         if ( is_dir( $dir ) ) {
 469                                 return $dir;
 470                         }
 471                 } else {
 472                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 473                 }
 474
 475                 // wfDebug( "Creating upload directory $dir\n" );
 476                 if ( file_exists( $dir ) ) {
 477                         wfDebug( "Already exists!\n" );
 478
 479                         return $dir;
 480                 }
 481
 482                 return $dir;
 483         }
 484
 485         /**
 486          * Create a dummy uploads directory which will contain a couple
 487          * of files in order to pass existence tests.
 488          *
 489          * @return string The directory
 490          */
 491         protected function setupUploads() {
 492                 global $IP;
 493
 494                 $base = $this->getBaseDir();
 495                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 496                 $backend->prepare( array( 'dir' => "$base/local-public/3/3a" ) );
 497                 $backend->store( array(
 498                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg", 'dst' => "$base/local-public/3/3a/Foobar.jpg"
 499                 ) );
 500                 $backend->prepare( array( 'dir' => "$base/local-public/e/ea" ) );
 501                 $backend->store( array(
 502                         'src' => "$IP/tests/phpunit/data/parser/wiki.png", 'dst' => "$base/local-public/e/ea/Thumb.png"
 503                 ) );
 504                 $backend->prepare( array( 'dir' => "$base/local-public/0/09" ) );
 505                 $backend->store( array(
 506                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg", 'dst' => "$base/local-public/0/09/Bad.jpg"
 507                 ) );
 508                 $backend->prepare( array( 'dir' => "$base/local-public/5/5f" ) );
 509                 $backend->store( array(
 510                         'src' => "$IP/tests/phpunit/data/parser/LoremIpsum.djvu", 'dst' => "$base/local-public/5/5f/LoremIpsum.djvu"
 511                 ) );
 512
 513                 // No helpful SVG file to copy, so make one ourselves
 514                 $data = '<?xml version="1.0" encoding="utf-8"?>' .
 515                         '<svg xmlns="http://www.w3.org/2000/svg"' .
 516                         ' version="1.1" width="240" height="180"/>';
 517
 518                 $backend->prepare( array( 'dir' => "$base/local-public/f/ff" ) );
 519                 $backend->quickCreate( array(
 520                         'content' => $data, 'dst' => "$base/local-public/f/ff/Foobar.svg"
 521                 ) );
 522         }
 523
 524         /**
 525          * Restore default values and perform any necessary clean-up
 526          * after each test runs.
 527          */
 528         protected function teardownGlobals() {
 529                 $this->teardownUploads();
 530
 531                 foreach ( $this->savedGlobals as $var => $val ) {
 532                         $GLOBALS[$var] = $val;
 533                 }
 534         }
 535
 536         /**
 537          * Remove the dummy uploads directory
 538          */
 539         private function teardownUploads() {
 540                 if ( $this->keepUploads ) {
 541                         return;
 542                 }
 543
 544                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 545                 if ( $backend instanceof MockFileBackend ) {
 546                         # In memory backend, so dont bother cleaning them up.
 547                         return;
 548                 }
 549
 550                 $base = $this->getBaseDir();
 551                 // delete the files first, then the dirs.
 552                 self::deleteFiles(
 553                         array(
 554                                 "$base/local-public/3/3a/Foobar.jpg",
 555                                 "$base/local-thumb/3/3a/Foobar.jpg/1000px-Foobar.jpg",
 556                                 "$base/local-thumb/3/3a/Foobar.jpg/100px-Foobar.jpg",
 557                                 "$base/local-thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 558                                 "$base/local-thumb/3/3a/Foobar.jpg/1280px-Foobar.jpg",
 559                                 "$base/local-thumb/3/3a/Foobar.jpg/137px-Foobar.jpg",
 560                                 "$base/local-thumb/3/3a/Foobar.jpg/1500px-Foobar.jpg",
 561                                 "$base/local-thumb/3/3a/Foobar.jpg/177px-Foobar.jpg",
 562                                 "$base/local-thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 563                                 "$base/local-thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 564                                 "$base/local-thumb/3/3a/Foobar.jpg/206px-Foobar.jpg",
 565                                 "$base/local-thumb/3/3a/Foobar.jpg/20px-Foobar.jpg",
 566                                 "$base/local-thumb/3/3a/Foobar.jpg/220px-Foobar.jpg",
 567                                 "$base/local-thumb/3/3a/Foobar.jpg/265px-Foobar.jpg",
 568                                 "$base/local-thumb/3/3a/Foobar.jpg/270px-Foobar.jpg",
 569                                 "$base/local-thumb/3/3a/Foobar.jpg/274px-Foobar.jpg",
 570                                 "$base/local-thumb/3/3a/Foobar.jpg/300px-Foobar.jpg",
 571                                 "$base/local-thumb/3/3a/Foobar.jpg/30px-Foobar.jpg",
 572                                 "$base/local-thumb/3/3a/Foobar.jpg/330px-Foobar.jpg",
 573                                 "$base/local-thumb/3/3a/Foobar.jpg/353px-Foobar.jpg",
 574                                 "$base/local-thumb/3/3a/Foobar.jpg/360px-Foobar.jpg",
 575                                 "$base/local-thumb/3/3a/Foobar.jpg/400px-Foobar.jpg",
 576                                 "$base/local-thumb/3/3a/Foobar.jpg/40px-Foobar.jpg",
 577                                 "$base/local-thumb/3/3a/Foobar.jpg/440px-Foobar.jpg",
 578                                 "$base/local-thumb/3/3a/Foobar.jpg/442px-Foobar.jpg",
 579                                 "$base/local-thumb/3/3a/Foobar.jpg/450px-Foobar.jpg",
 580                                 "$base/local-thumb/3/3a/Foobar.jpg/50px-Foobar.jpg",
 581                                 "$base/local-thumb/3/3a/Foobar.jpg/600px-Foobar.jpg",
 582                                 "$base/local-thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 583                                 "$base/local-thumb/3/3a/Foobar.jpg/70px-Foobar.jpg",
 584                                 "$base/local-thumb/3/3a/Foobar.jpg/75px-Foobar.jpg",
 585                                 "$base/local-thumb/3/3a/Foobar.jpg/960px-Foobar.jpg",
 586
 587                                 "$base/local-public/e/ea/Thumb.png",
 588
 589                                 "$base/local-public/0/09/Bad.jpg",
 590
 591                                 "$base/local-public/5/5f/LoremIpsum.djvu",
 592                                 "$base/local-thumb/5/5f/LoremIpsum.djvu/page2-2480px-LoremIpsum.djvu.jpg",
 593                                 "$base/local-thumb/5/5f/LoremIpsum.djvu/page2-3720px-LoremIpsum.djvu.jpg",
 594                                 "$base/local-thumb/5/5f/LoremIpsum.djvu/page2-4960px-LoremIpsum.djvu.jpg",
 595
 596                                 "$base/local-public/f/ff/Foobar.svg",
 597                                 "$base/local-thumb/f/ff/Foobar.svg/180px-Foobar.svg.png",
 598                                 "$base/local-thumb/f/ff/Foobar.svg/2000px-Foobar.svg.png",
 599                                 "$base/local-thumb/f/ff/Foobar.svg/270px-Foobar.svg.png",
 600                                 "$base/local-thumb/f/ff/Foobar.svg/3000px-Foobar.svg.png",
 601                                 "$base/local-thumb/f/ff/Foobar.svg/360px-Foobar.svg.png",
 602                                 "$base/local-thumb/f/ff/Foobar.svg/4000px-Foobar.svg.png",
 603                                 "$base/local-thumb/f/ff/Foobar.svg/langde-180px-Foobar.svg.png",
 604                                 "$base/local-thumb/f/ff/Foobar.svg/langde-270px-Foobar.svg.png",
 605                                 "$base/local-thumb/f/ff/Foobar.svg/langde-360px-Foobar.svg.png",
 606
 607                                 "$base/local-public/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 608                         )
 609                 );
 610         }
 611
 612         /**
 613          * Delete the specified files, if they exist.
 614          * @param array $files Full paths to files to delete.
 615          */
 616         private static function deleteFiles( $files ) {
 617                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
 618                 foreach ( $files as $file ) {
 619                         $backend->delete( array( 'src' => $file ), array( 'force' => 1 ) );
 620                 }
 621                 foreach ( $files as $file ) {
 622                         $tmp = $file;
 623                         while ( $tmp = FileBackend::parentStoragePath( $tmp ) ) {
 624                                 if ( !$backend->clean( array( 'dir' => $tmp ) )->isOK() ) {
 625                                         break;
 626                                 }
 627                         }
 628                 }
 629         }
 630
 631         protected function getBaseDir() {
 632                 return 'mwstore://local-backend';
 633         }
 634
 635         public function parserTestProvider() {
 636                 if ( $this->file === false ) {
 637                         global $wgParserTestFiles;
 638                         $this->file = $wgParserTestFiles[0];
 639                 }
 640
 641                 return new TestFileIterator( $this->file, $this );
 642         }
 643
 644         /**
 645          * Set the file from whose tests will be run by this instance
 646          * @param string $filename
 647          */
 648         public function setParserTestFile( $filename ) {
 649                 $this->file = $filename;
 650         }
 651
 652         /**
 653          * @group medium
 654          * @dataProvider parserTestProvider
 655          * @param string $desc
 656          * @param string $input
 657          * @param string $result
 658          * @param array $opts
 659          * @param array $config
 660          */
 661         public function testParserTest( $desc, $input, $result, $opts, $config ) {
 662                 if ( $this->regex != '' && !preg_match( '/' . $this->regex . '/', $desc ) ) {
 663                         $this->assertTrue( true ); // XXX: don't flood output with "test made no assertions"
 664                         //$this->markTestSkipped( 'Filtered out by the user' );
 665                         return;
 666                 }
 667
 668                 if ( !$this->isWikitextNS( NS_MAIN ) ) {
 669                         // parser tests frequently assume that the main namespace contains wikitext.
 670                         // @todo When setting up pages, force the content model. Only skip if
 671                         //        $wgtContentModelUseDB is false.
 672                         $this->markTestSkipped( "Main namespace does not support wikitext,"
 673                                 . "skipping parser test: $desc" );
 674                 }
 675
 676                 wfDebug( "Running parser test: $desc\n" );
 677
 678                 $opts = $this->parseOptions( $opts );
 679                 $context = $this->setupGlobals( $opts, $config );
 680
 681                 $user = $context->getUser();
 682                 $options = ParserOptions::newFromContext( $context );
 683
 684                 if ( isset( $opts['title'] ) ) {
 685                         $titleText = $opts['title'];
 686                 } else {
 687                         $titleText = 'Parser test';
 688                 }
 689
 690                 $local = isset( $opts['local'] );
 691                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 692                 $parser = $this->getParser( $preprocessor );
 693
 694                 $title = Title::newFromText( $titleText );
 695
 696                 # Parser test requiring math. Make sure texvc is executable
 697                 # or just skip such tests.
 698                 if ( isset( $opts['math'] ) || isset( $opts['texvc'] ) ) {
 699                         global $wgTexvc;
 700
 701                         if ( !isset( $wgTexvc ) ) {
 702                                 $this->markTestSkipped( "SKIPPED: \$wgTexvc is not set" );
 703                         } elseif ( !is_executable( $wgTexvc ) ) {
 704                                 $this->markTestSkipped( "SKIPPED: texvc binary does not exist"
 705                                         . " or is not executable.\n"
 706                                         . "Current configuration is:\n\$wgTexvc = '$wgTexvc'" );
 707                         }
 708                 }
 709                 if ( isset( $opts['djvu'] ) ) {
 710                         if ( !$this->djVuSupport->isEnabled() ) {
 711                                 $this->markTestSkipped( "SKIPPED: djvu binaries do not exist or are not executable.\n" );
 712                         }
 713                 }
 714
 715                 if ( isset( $opts['pst'] ) ) {
 716                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 717                 } elseif ( isset( $opts['msg'] ) ) {
 718                         $out = $parser->transformMsg( $input, $options, $title );
 719                 } elseif ( isset( $opts['section'] ) ) {
 720                         $section = $opts['section'];
 721                         $out = $parser->getSection( $input, $section );
 722                 } elseif ( isset( $opts['replace'] ) ) {
 723                         $section = $opts['replace'][0];
 724                         $replace = $opts['replace'][1];
 725                         $out = $parser->replaceSection( $input, $section, $replace );
 726                 } elseif ( isset( $opts['comment'] ) ) {
 727                         $out = Linker::formatComment( $input, $title, $local );
 728                 } elseif ( isset( $opts['preload'] ) ) {
 729                         $out = $parser->getPreloadText( $input, $title, $options );
 730                 } else {
 731                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 732                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 733                         $out = $output->getText();
 734
 735                         if ( isset( $opts['showtitle'] ) ) {
 736                                 if ( $output->getTitleText() ) {
 737                                         $title = $output->getTitleText();
 738                                 }
 739
 740                                 $out = "$title\n$out";
 741                         }
 742
 743                         if ( isset( $opts['ill'] ) ) {
 744                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 745                         } elseif ( isset( $opts['cat'] ) ) {
 746                                 $outputPage = $context->getOutput();
 747                                 $outputPage->addCategoryLinks( $output->getCategories() );
 748                                 $cats = $outputPage->getCategoryLinks();
 749
 750                                 if ( isset( $cats['normal'] ) ) {
 751                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 752                                 } else {
 753                                         $out = '';
 754                                 }
 755                         }
 756                         $parser->mPreprocessor = null;
 757
 758                         $result = $this->tidy( $result );
 759                 }
 760
 761                 $this->teardownGlobals();
 762
 763                 $this->assertEquals( $result, $out, $desc );
 764         }
 765
 766         /**
 767          * Run a fuzz test series
 768          * Draw input from a set of test files
 769          *
 770          * @todo fixme Needs some work to not eat memory until the world explodes
 771          *
 772          * @group ParserFuzz
 773          */
 774         public function testFuzzTests() {
 775                 global $wgParserTestFiles;
 776
 777                 $files = $wgParserTestFiles;
 778
 779                 if ( $this->getCliArg( 'file=' ) ) {
 780                         $files = array( $this->getCliArg( 'file=' ) );
 781                 }
 782
 783                 $dict = $this->getFuzzInput( $files );
 784                 $dictSize = strlen( $dict );
 785                 $logMaxLength = log( $this->maxFuzzTestLength );
 786
 787                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 788
 789                 $user = new User;
 790                 $opts = ParserOptions::newFromUser( $user );
 791                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 792
 793                 $id = 1;
 794
 795                 while ( true ) {
 796
 797                         // Generate test input
 798                         mt_srand( ++$this->fuzzSeed );
 799                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 800                         $input = '';
 801
 802                         while ( strlen( $input ) < $totalLength ) {
 803                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 804                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 805                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 806                                 $input .= substr( $dict, $offset, $hairLength );
 807                         }
 808
 809                         $this->setupGlobals();
 810                         $parser = $this->getParser();
 811
 812                         // Run the test
 813                         try {
 814                                 $parser->parse( $input, $title, $opts );
 815                                 $this->assertTrue( true, "Test $id, fuzz seed {$this->fuzzSeed}" );
 816                         } catch ( Exception $exception ) {
 817                                 $input_dump = sprintf( "string(%d) \"%s\"\n", strlen( $input ), $input );
 818
 819                                 $this->assertTrue( false, "Test $id, fuzz seed {$this->fuzzSeed}. \n\n" .
 820                                         "Input: $input_dump\n\nError: {$exception->getMessage()}\n\n" .
 821                                         "Backtrace: {$exception->getTraceAsString()}" );
 822                         }
 823
 824                         $this->teardownGlobals();
 825                         $parser->__destruct();
 826
 827                         if ( $id % 100 == 0 ) {
 828                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 829                                 //echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 830                                 if ( $usage > 90 ) {
 831                                         $ret = "Out of memory:\n";
 832                                         $memStats = $this->getMemoryBreakdown();
 833
 834                                         foreach ( $memStats as $name => $usage ) {
 835                                                 $ret .= "$name: $usage\n";
 836                                         }
 837
 838                                         throw new MWException( $ret );
 839                                 }
 840                         }
 841
 842                         $id++;
 843                 }
 844         }
 845
 846         //Various getter functions
 847
 848         /**
 849          * Get an input dictionary from a set of parser test files
 850          * @param array $filenames
 851          */
 852         function getFuzzInput( $filenames ) {
 853                 $dict = '';
 854
 855                 foreach ( $filenames as $filename ) {
 856                         $contents = file_get_contents( $filename );
 857                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 858
 859                         foreach ( $matches[1] as $match ) {
 860                                 $dict .= $match . "\n";
 861                         }
 862                 }
 863
 864                 return $dict;
 865         }
 866
 867         /**
 868          * Get a memory usage breakdown
 869          */
 870         function getMemoryBreakdown() {
 871                 $memStats = array();
 872
 873                 foreach ( $GLOBALS as $name => $value ) {
 874                         $memStats['$' . $name] = strlen( serialize( $value ) );
 875                 }
 876
 877                 $classes = get_declared_classes();
 878
 879                 foreach ( $classes as $class ) {
 880                         $rc = new ReflectionClass( $class );
 881                         $props = $rc->getStaticProperties();
 882                         $memStats[$class] = strlen( serialize( $props ) );
 883                         $methods = $rc->getMethods();
 884
 885                         foreach ( $methods as $method ) {
 886                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 887                         }
 888                 }
 889
 890                 $functions = get_defined_functions();
 891
 892                 foreach ( $functions['user'] as $function ) {
 893                         $rf = new ReflectionFunction( $function );
 894                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 895                 }
 896
 897                 asort( $memStats );
 898
 899                 return $memStats;
 900         }
 901
 902         /**
 903          * Get a Parser object
 904          * @param Preprocessor $preprocessor
 905          */
 906         function getParser( $preprocessor = null ) {
 907                 global $wgParserConf;
 908
 909                 $class = $wgParserConf['class'];
 910                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 911
 912                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 913
 914                 return $parser;
 915         }
 916
 917         //Various action functions
 918
 919         public function addArticle( $name, $text, $line ) {
 920                 self::$articles[$name] = array( $text, $line );
 921         }
 922
 923         public function publishTestArticles() {
 924                 if ( empty( self::$articles ) ) {
 925                         return;
 926                 }
 927
 928                 foreach ( self::$articles as $name => $info ) {
 929                         list( $text, $line ) = $info;
 930                         ParserTest::addArticle( $name, $text, $line, 'ignoreduplicate' );
 931                 }
 932         }
 933
 934         /**
 935          * Steal a callback function from the primary parser, save it for
 936          * application to our scary parser. If the hook is not installed,
 937          * abort processing of this file.
 938          *
 939          * @param string $name
 940          * @return bool True if tag hook is present
 941          */
 942         public function requireHook( $name ) {
 943                 global $wgParser;
 944                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 945                 return isset( $wgParser->mTagHooks[$name] );
 946         }
 947
 948         public function requireFunctionHook( $name ) {
 949                 global $wgParser;
 950                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 951                 return isset( $wgParser->mFunctionHooks[$name] );
 952         }
 953
 954         public function requireTransparentHook( $name ) {
 955                 global $wgParser;
 956                 $wgParser->firstCallInit(); // make sure hooks are loaded.
 957                 return isset( $wgParser->mTransparentTagHooks[$name] );
 958         }
 959
 960         //Various "cleanup" functions
 961
 962         /**
 963          * Run the "tidy" command on text if the $wgUseTidy
 964          * global is true
 965          *
 966          * @param string $text The text to tidy
 967          * @return string
 968          */
 969         protected function tidy( $text ) {
 970                 global $wgUseTidy;
 971
 972                 if ( $wgUseTidy ) {
 973                         $text = MWTidy::tidy( $text );
 974                 }
 975
 976                 return $text;
 977         }
 978
 979         /**
 980          * Remove last character if it is a newline
 981          * @param string $s
 982          */
 983         public function removeEndingNewline( $s ) {
 984                 if ( substr( $s, -1 ) === "\n" ) {
 985                         return substr( $s, 0, -1 );
 986                 } else {
 987                         return $s;
 988                 }
 989         }
 990
 991         //Test options parser functions
 992
 993         protected function parseOptions( $instring ) {
 994                 $opts = array();
 995                 // foo
 996                 // foo=bar
 997                 // foo="bar baz"
 998                 // foo=[[bar baz]]
 999                 // foo=bar,"baz quux"
1000                 $regex = '/\b
1001                         ([\w-]+)                                                # Key
1002                         \b
1003                         (?:\s*
1004                                 =                                               # First sub-value
1005                                 \s*
1006                                 (
1007                                         "
1008                                                 [^"]*                   # Quoted val
1009                                         "
1010                                 |
1011                                         \[\[
1012                                                 [^]]*                   # Link target
1013                                         \]\]
1014                                 |
1015                                         [\w-]+                          # Plain word
1016                                 )
1017                                 (?:\s*
1018                                         ,                                       # Sub-vals 1..N
1019                                         \s*
1020                                         (
1021                                                 "[^"]*"                 # Quoted val
1022                                         |
1023                                                 \[\[[^]]*\]\]   # Link target
1024                                         |
1025                                                 [\w-]+                  # Plain word
1026                                         )
1027                                 )*
1028                         )?
1029                         /x';
1030
1031                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
1032                         foreach ( $matches as $bits ) {
1033                                 array_shift( $bits );
1034                                 $key = strtolower( array_shift( $bits ) );
1035                                 if ( count( $bits ) == 0 ) {
1036                                         $opts[$key] = true;
1037                                 } elseif ( count( $bits ) == 1 ) {
1038                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
1039                                 } else {
1040                                         // Array!
1041                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
1042                                 }
1043                         }
1044                 }
1045
1046                 return $opts;
1047         }
1048
1049         protected function cleanupOption( $opt ) {
1050                 if ( substr( $opt, 0, 1 ) == '"' ) {
1051                         return substr( $opt, 1, -1 );
1052                 }
1053
1054                 if ( substr( $opt, 0, 2 ) == '[[' ) {
1055                         return substr( $opt, 2, -2 );
1056                 }
1057
1058                 return $opt;
1059         }
1060
1061         /**
1062          * Use a regex to find out the value of an option
1063          * @param string $key Name of option val to retrieve
1064          * @param array $opts Options array to look in
1065          * @param mixed $default Default value returned if not found
1066          */
1067         protected static function getOptionValue( $key, $opts, $default ) {
1068                 $key = strtolower( $key );
1069
1070                 if ( isset( $opts[$key] ) ) {
1071                         return $opts[$key];
1072                 } else {
1073                         return $default;
1074                 }
1075         }
1076 }