tests/parser/ParserTestRunner.php

   1 <?php
   2 /**
   3  * Generic backend for the MediaWiki parser test suite, used by both the
   4  * standalone parserTests.php and the PHPUnit "parsertests" suite.
   5  *
   6  * Copyright © 2004, 2010 Brion Vibber <brion@pobox.com>
   7  * https://www.mediawiki.org/
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write to the Free Software Foundation, Inc.,
  21  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  22  * http://www.gnu.org/copyleft/gpl.html
  23  *
  24  * @todo Make this more independent of the configuration (and if possible the database)
  25  * @file
  26  * @ingroup Testing
  27  */
  28 use Wikimedia\Rdbms\IDatabase;
  29 use MediaWiki\MediaWikiServices;
  30 use Wikimedia\ScopedCallback;
  31 use Wikimedia\TestingAccessWrapper;
  32
  33 /**
  34  * @ingroup Testing
  35  */
  36 class ParserTestRunner {
  37
  38         /**
  39          * MediaWiki core parser test files, paths
  40          * will be prefixed with __DIR__ . '/'
  41          *
  42          * @var array
  43          */
  44         private static $coreTestFiles = [
  45                 'parserTests.txt',
  46                 'extraParserTests.txt',
  47         ];
  48
  49         /**
  50          * @var bool $useTemporaryTables Use temporary tables for the temporary database
  51          */
  52         private $useTemporaryTables = true;
  53
  54         /**
  55          * @var array $setupDone The status of each setup function
  56          */
  57         private $setupDone = [
  58                 'staticSetup' => false,
  59                 'perTestSetup' => false,
  60                 'setupDatabase' => false,
  61                 'setDatabase' => false,
  62                 'setupUploads' => false,
  63         ];
  64
  65         /**
  66          * Our connection to the database
  67          * @var Database
  68          */
  69         private $db;
  70
  71         /**
  72          * Database clone helper
  73          * @var CloneDatabase
  74          */
  75         private $dbClone;
  76
  77         /**
  78          * @var TidySupport
  79          */
  80         private $tidySupport;
  81
  82         /**
  83          * @var TidyDriverBase
  84          */
  85         private $tidyDriver = null;
  86
  87         /**
  88          * @var TestRecorder
  89          */
  90         private $recorder;
  91
  92         /**
  93          * The upload directory, or null to not set up an upload directory
  94          *
  95          * @var string|null
  96          */
  97         private $uploadDir = null;
  98
  99         /**
 100          * The name of the file backend to use, or null to use MockFileBackend.
 101          * @var string|null
 102          */
 103         private $fileBackendName;
 104
 105         /**
 106          * A complete regex for filtering tests.
 107          * @var string
 108          */
 109         private $regex;
 110
 111         /**
 112          * A list of normalization functions to apply to the expected and actual
 113          * output.
 114          * @var array
 115          */
 116         private $normalizationFunctions = [];
 117
 118         /**
 119          * @param TestRecorder $recorder
 120          * @param array $options
 121          */
 122         public function __construct( TestRecorder $recorder, $options = [] ) {
 123                 $this->recorder = $recorder;
 124
 125                 if ( isset( $options['norm'] ) ) {
 126                         foreach ( $options['norm'] as $func ) {
 127                                 if ( in_array( $func, [ 'removeTbody', 'trimWhitespace' ] ) ) {
 128                                         $this->normalizationFunctions[] = $func;
 129                                 } else {
 130                                         $this->recorder->warning(
 131                                                 "Warning: unknown normalization option \"$func\"\n" );
 132                                 }
 133                         }
 134                 }
 135
 136                 if ( isset( $options['regex'] ) && $options['regex'] !== false ) {
 137                         $this->regex = $options['regex'];
 138                 } else {
 139                         # Matches anything
 140                         $this->regex = '//';
 141                 }
 142
 143                 $this->keepUploads = !empty( $options['keep-uploads'] );
 144
 145                 $this->fileBackendName = isset( $options['file-backend'] ) ?
 146                         $options['file-backend'] : false;
 147
 148                 $this->runDisabled = !empty( $options['run-disabled'] );
 149                 $this->runParsoid = !empty( $options['run-parsoid'] );
 150
 151                 $this->tidySupport = new TidySupport( !empty( $options['use-tidy-config'] ) );
 152                 if ( !$this->tidySupport->isEnabled() ) {
 153                         $this->recorder->warning(
 154                                 "Warning: tidy is not installed, skipping some tests\n" );
 155                 }
 156
 157                 if ( isset( $options['upload-dir'] ) ) {
 158                         $this->uploadDir = $options['upload-dir'];
 159                 }
 160         }
 161
 162         /**
 163          * Get list of filenames to extension and core parser tests
 164          *
 165          * @return array
 166          */
 167         public static function getParserTestFiles() {
 168                 global $wgParserTestFiles;
 169
 170                 // Add core test files
 171                 $files = array_map( function ( $item ) {
 172                         return __DIR__ . "/$item";
 173                 }, self::$coreTestFiles );
 174
 175                 // Plus legacy global files
 176                 $files = array_merge( $files, $wgParserTestFiles );
 177
 178                 // Auto-discover extension parser tests
 179                 $registry = ExtensionRegistry::getInstance();
 180                 foreach ( $registry->getAllThings() as $info ) {
 181                         $dir = dirname( $info['path'] ) . '/tests/parser';
 182                         if ( !file_exists( $dir ) ) {
 183                                 continue;
 184                         }
 185                         $counter = 1;
 186                         $dirIterator = new RecursiveIteratorIterator(
 187                                 new RecursiveDirectoryIterator( $dir )
 188                         );
 189                         foreach ( $dirIterator as $fileInfo ) {
 190                                 /** @var SplFileInfo $fileInfo */
 191                                 if ( substr( $fileInfo->getFilename(), -4 ) === '.txt' ) {
 192                                         $name = $info['name'] . $counter;
 193                                         while ( isset( $files[$name] ) ) {
 194                                                 $name = $info['name'] . '_' . $counter++;
 195                                         }
 196                                         $files[$name] = $fileInfo->getPathname();
 197                                 }
 198                         }
 199                 }
 200
 201                 return array_unique( $files );
 202         }
 203
 204         public function getRecorder() {
 205                 return $this->recorder;
 206         }
 207
 208         /**
 209          * Do any setup which can be done once for all tests, independent of test
 210          * options, except for database setup.
 211          *
 212          * Public setup functions in this class return a ScopedCallback object. When
 213          * this object is destroyed by going out of scope, teardown of the
 214          * corresponding test setup is performed.
 215          *
 216          * Teardown objects may be chained by passing a ScopedCallback from a
 217          * previous setup stage as the $nextTeardown parameter. This enforces the
 218          * convention that teardown actions are taken in reverse order to the
 219          * corresponding setup actions. When $nextTeardown is specified, a
 220          * ScopedCallback will be returned which first tears down the current
 221          * setup stage, and then tears down the previous setup stage which was
 222          * specified by $nextTeardown.
 223          *
 224          * @param ScopedCallback|null $nextTeardown
 225          * @return ScopedCallback
 226          */
 227         public function staticSetup( $nextTeardown = null ) {
 228                 // A note on coding style:
 229
 230                 // The general idea here is to keep setup code together with
 231                 // corresponding teardown code, in a fine-grained manner. We have two
 232                 // arrays: $setup and $teardown. The code snippets in the $setup array
 233                 // are executed at the end of the method, before it returns, and the
 234                 // code snippets in the $teardown array are executed in reverse order
 235                 // when the Wikimedia\ScopedCallback object is consumed.
 236
 237                 // Because it is a common operation to save, set and restore global
 238                 // variables, we have an additional convention: when the array key of
 239                 // $setup is a string, the string is taken to be the name of the global
 240                 // variable, and the element value is taken to be the desired new value.
 241
 242                 // It's acceptable to just do the setup immediately, instead of adding
 243                 // a closure to $setup, except when the setup action depends on global
 244                 // variable initialisation being done first. In this case, you have to
 245                 // append a closure to $setup after the global variable is appended.
 246
 247                 // When you add to setup functions in this class, please keep associated
 248                 // setup and teardown actions together in the source code, and please
 249                 // add comments explaining why the setup action is necessary.
 250
 251                 $setup = [];
 252                 $teardown = [];
 253
 254                 $teardown[] = $this->markSetupDone( 'staticSetup' );
 255
 256                 // Some settings which influence HTML output
 257                 $setup['wgSitename'] = 'MediaWiki';
 258                 $setup['wgServer'] = 'http://example.org';
 259                 $setup['wgServerName'] = 'example.org';
 260                 $setup['wgScriptPath'] = '';
 261                 $setup['wgScript'] = '/index.php';
 262                 $setup['wgResourceBasePath'] = '';
 263                 $setup['wgStylePath'] = '/skins';
 264                 $setup['wgExtensionAssetsPath'] = '/extensions';
 265                 $setup['wgArticlePath'] = '/wiki/$1';
 266                 $setup['wgActionPaths'] = [];
 267                 $setup['wgVariantArticlePath'] = false;
 268                 $setup['wgUploadNavigationUrl'] = false;
 269                 $setup['wgCapitalLinks'] = true;
 270                 $setup['wgNoFollowLinks'] = true;
 271                 $setup['wgNoFollowDomainExceptions'] = [ 'no-nofollow.org' ];
 272                 $setup['wgExternalLinkTarget'] = false;
 273                 $setup['wgExperimentalHtmlIds'] = false;
 274                 $setup['wgLocaltimezone'] = 'UTC';
 275                 $setup['wgHtml5'] = true;
 276                 $setup['wgDisableLangConversion'] = false;
 277                 $setup['wgDisableTitleConversion'] = false;
 278
 279                 // "extra language links"
 280                 // see https://gerrit.wikimedia.org/r/111390
 281                 $setup['wgExtraInterlanguageLinkPrefixes'] = [ 'mul' ];
 282
 283                 // All FileRepo changes should be done here by injecting services,
 284                 // there should be no need to change global variables.
 285                 RepoGroup::setSingleton( $this->createRepoGroup() );
 286                 $teardown[] = function () {
 287                         RepoGroup::destroySingleton();
 288                 };
 289
 290                 // Set up null lock managers
 291                 $setup['wgLockManagers'] = [ [
 292                         'name' => 'fsLockManager',
 293                         'class' => 'NullLockManager',
 294                 ], [
 295                         'name' => 'nullLockManager',
 296                         'class' => 'NullLockManager',
 297                 ] ];
 298                 $reset = function () {
 299                         LockManagerGroup::destroySingletons();
 300                 };
 301                 $setup[] = $reset;
 302                 $teardown[] = $reset;
 303
 304                 // This allows article insertion into the prefixed DB
 305                 $setup['wgDefaultExternalStore'] = false;
 306
 307                 // This might slightly reduce memory usage
 308                 $setup['wgAdaptiveMessageCache'] = true;
 309
 310                 // This is essential and overrides disabling of database messages in TestSetup
 311                 $setup['wgUseDatabaseMessages'] = true;
 312                 $reset = function () {
 313                         MessageCache::destroyInstance();
 314                 };
 315                 $setup[] = $reset;
 316                 $teardown[] = $reset;
 317
 318                 // It's not necessary to actually convert any files
 319                 $setup['wgSVGConverter'] = 'null';
 320                 $setup['wgSVGConverters'] = [ 'null' => 'echo "1">$output' ];
 321
 322                 // Fake constant timestamp
 323                 Hooks::register( 'ParserGetVariableValueTs', function ( &$parser, &$ts ) {
 324                         $ts = $this->getFakeTimestamp();
 325                         return true;
 326                 } );
 327                 $teardown[] = function () {
 328                         Hooks::clear( 'ParserGetVariableValueTs' );
 329                 };
 330
 331                 $this->appendNamespaceSetup( $setup, $teardown );
 332
 333                 // Set up interwikis and append teardown function
 334                 $teardown[] = $this->setupInterwikis();
 335
 336                 // This affects title normalization in links. It invalidates
 337                 // MediaWikiTitleCodec objects.
 338                 $setup['wgLocalInterwikis'] = [ 'local', 'mi' ];
 339                 $reset = function () {
 340                         $this->resetTitleServices();
 341                 };
 342                 $setup[] = $reset;
 343                 $teardown[] = $reset;
 344
 345                 // Set up a mock MediaHandlerFactory
 346                 MediaWikiServices::getInstance()->disableService( 'MediaHandlerFactory' );
 347                 MediaWikiServices::getInstance()->redefineService(
 348                         'MediaHandlerFactory',
 349                         function ( MediaWikiServices $services ) {
 350                                 $handlers = $services->getMainConfig()->get( 'ParserTestMediaHandlers' );
 351                                 return new MediaHandlerFactory( $handlers );
 352                         }
 353                 );
 354                 $teardown[] = function () {
 355                         MediaWikiServices::getInstance()->resetServiceForTesting( 'MediaHandlerFactory' );
 356                 };
 357
 358                 // SqlBagOStuff broke when using temporary tables on r40209 (T17892).
 359                 // It seems to have been fixed since (r55079?), but regressed at some point before r85701.
 360                 // This works around it for now...
 361                 global $wgObjectCaches;
 362                 $setup['wgObjectCaches'] = [ CACHE_DB => $wgObjectCaches['hash'] ] + $wgObjectCaches;
 363                 if ( isset( ObjectCache::$instances[CACHE_DB] ) ) {
 364                         $savedCache = ObjectCache::$instances[CACHE_DB];
 365                         ObjectCache::$instances[CACHE_DB] = new HashBagOStuff;
 366                         $teardown[] = function () use ( $savedCache ) {
 367                                 ObjectCache::$instances[CACHE_DB] = $savedCache;
 368                         };
 369                 }
 370
 371                 $teardown[] = $this->executeSetupSnippets( $setup );
 372
 373                 // Schedule teardown snippets in reverse order
 374                 return $this->createTeardownObject( $teardown, $nextTeardown );
 375         }
 376
 377         private function appendNamespaceSetup( &$setup, &$teardown ) {
 378                 // Add a namespace shadowing a interwiki link, to test
 379                 // proper precedence when resolving links. (T53680)
 380                 $setup['wgExtraNamespaces'] = [
 381                         100 => 'MemoryAlpha',
 382                         101 => 'MemoryAlpha_talk'
 383                 ];
 384                 // Changing wgExtraNamespaces invalidates caches in MWNamespace and
 385                 // any live Language object, both on setup and teardown
 386                 $reset = function () {
 387                         MWNamespace::clearCaches();
 388                         $GLOBALS['wgContLang']->resetNamespaces();
 389                 };
 390                 $setup[] = $reset;
 391                 $teardown[] = $reset;
 392         }
 393
 394         /**
 395          * Create a RepoGroup object appropriate for the current configuration
 396          * @return RepoGroup
 397          */
 398         protected function createRepoGroup() {
 399                 if ( $this->uploadDir ) {
 400                         if ( $this->fileBackendName ) {
 401                                 throw new MWException( 'You cannot specify both use-filebackend and upload-dir' );
 402                         }
 403                         $backend = new FSFileBackend( [
 404                                 'name' => 'local-backend',
 405                                 'wikiId' => wfWikiID(),
 406                                 'basePath' => $this->uploadDir,
 407                                 'tmpDirectory' => wfTempDir()
 408                         ] );
 409                 } elseif ( $this->fileBackendName ) {
 410                         global $wgFileBackends;
 411                         $name = $this->fileBackendName;
 412                         $useConfig = false;
 413                         foreach ( $wgFileBackends as $conf ) {
 414                                 if ( $conf['name'] === $name ) {
 415                                         $useConfig = $conf;
 416                                 }
 417                         }
 418                         if ( $useConfig === false ) {
 419                                 throw new MWException( "Unable to find file backend \"$name\"" );
 420                         }
 421                         $useConfig['name'] = 'local-backend'; // swap name
 422                         unset( $useConfig['lockManager'] );
 423                         unset( $useConfig['fileJournal'] );
 424                         $class = $useConfig['class'];
 425                         $backend = new $class( $useConfig );
 426                 } else {
 427                         # Replace with a mock. We do not care about generating real
 428                         # files on the filesystem, just need to expose the file
 429                         # informations.
 430                         $backend = new MockFileBackend( [
 431                                 'name' => 'local-backend',
 432                                 'wikiId' => wfWikiID()
 433                         ] );
 434                 }
 435
 436                 return new RepoGroup(
 437                         [
 438                                 'class' => 'MockLocalRepo',
 439                                 'name' => 'local',
 440                                 'url' => 'http://example.com/images',
 441                                 'hashLevels' => 2,
 442                                 'transformVia404' => false,
 443                                 'backend' => $backend
 444                         ],
 445                         []
 446                 );
 447         }
 448
 449         /**
 450          * Execute an array in which elements with integer keys are taken to be
 451          * callable objects, and other elements are taken to be global variable
 452          * set operations, with the key giving the variable name and the value
 453          * giving the new global variable value. A closure is returned which, when
 454          * executed, sets the global variables back to the values they had before
 455          * this function was called.
 456          *
 457          * @see staticSetup
 458          *
 459          * @param array $setup
 460          * @return closure
 461          */
 462         protected function executeSetupSnippets( $setup ) {
 463                 $saved = [];
 464                 foreach ( $setup as $name => $value ) {
 465                         if ( is_int( $name ) ) {
 466                                 $value();
 467                         } else {
 468                                 $saved[$name] = isset( $GLOBALS[$name] ) ? $GLOBALS[$name] : null;
 469                                 $GLOBALS[$name] = $value;
 470                         }
 471                 }
 472                 return function () use ( $saved ) {
 473                         $this->executeSetupSnippets( $saved );
 474                 };
 475         }
 476
 477         /**
 478          * Take a setup array in the same format as the one given to
 479          * executeSetupSnippets(), and return a ScopedCallback which, when consumed,
 480          * executes the snippets in the setup array in reverse order. This is used
 481          * to create "teardown objects" for the public API.
 482          *
 483          * @see staticSetup
 484          *
 485          * @param array $teardown The snippet array
 486          * @param ScopedCallback|null $nextTeardown A ScopedCallback to consume
 487          * @return ScopedCallback
 488          */
 489         protected function createTeardownObject( $teardown, $nextTeardown = null ) {
 490                 return new ScopedCallback( function () use ( $teardown, $nextTeardown ) {
 491                         // Schedule teardown snippets in reverse order
 492                         $teardown = array_reverse( $teardown );
 493
 494                         $this->executeSetupSnippets( $teardown );
 495                         if ( $nextTeardown ) {
 496                                 ScopedCallback::consume( $nextTeardown );
 497                         }
 498                 } );
 499         }
 500
 501         /**
 502          * Set a setupDone flag to indicate that setup has been done, and return
 503          * the teardown closure. If the flag was already set, throw an exception.
 504          *
 505          * @param string $funcName The setup function name
 506          * @return closure
 507          */
 508         protected function markSetupDone( $funcName ) {
 509                 if ( $this->setupDone[$funcName] ) {
 510                         throw new MWException( "$funcName is already done" );
 511                 }
 512                 $this->setupDone[$funcName] = true;
 513                 return function () use ( $funcName ) {
 514                         $this->setupDone[$funcName] = false;
 515                 };
 516         }
 517
 518         /**
 519          * Ensure a given setup stage has been done, throw an exception if it has
 520          * not.
 521          * @param string $funcName
 522          * @param string|null $funcName2
 523          */
 524         protected function checkSetupDone( $funcName, $funcName2 = null ) {
 525                 if ( !$this->setupDone[$funcName]
 526                         && ( $funcName === null || !$this->setupDone[$funcName2] )
 527                 ) {
 528                         throw new MWException( "$funcName must be called before calling " .
 529                                 wfGetCaller() );
 530                 }
 531         }
 532
 533         /**
 534          * Determine whether a particular setup function has been run
 535          *
 536          * @param string $funcName
 537          * @return bool
 538          */
 539         public function isSetupDone( $funcName ) {
 540                 return isset( $this->setupDone[$funcName] ) ? $this->setupDone[$funcName] : false;
 541         }
 542
 543         /**
 544          * Insert hardcoded interwiki in the lookup table.
 545          *
 546          * This function insert a set of well known interwikis that are used in
 547          * the parser tests. They can be considered has fixtures are injected in
 548          * the interwiki cache by using the 'InterwikiLoadPrefix' hook.
 549          * Since we are not interested in looking up interwikis in the database,
 550          * the hook completely replace the existing mechanism (hook returns false).
 551          *
 552          * @return closure for teardown
 553          */
 554         private function setupInterwikis() {
 555                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 556                 # for testing inter-language links
 557                 Hooks::register( 'InterwikiLoadPrefix', function ( $prefix, &$iwData ) {
 558                         static $testInterwikis = [
 559                                 'local' => [
 560                                         'iw_url' => 'http://doesnt.matter.org/$1',
 561                                         'iw_api' => '',
 562                                         'iw_wikiid' => '',
 563                                         'iw_local' => 0 ],
 564                                 'wikipedia' => [
 565                                         'iw_url' => 'http://en.wikipedia.org/wiki/$1',
 566                                         'iw_api' => '',
 567                                         'iw_wikiid' => '',
 568                                         'iw_local' => 0 ],
 569                                 'meatball' => [
 570                                         'iw_url' => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 571                                         'iw_api' => '',
 572                                         'iw_wikiid' => '',
 573                                         'iw_local' => 0 ],
 574                                 'memoryalpha' => [
 575                                         'iw_url' => 'http://www.memory-alpha.org/en/index.php/$1',
 576                                         'iw_api' => '',
 577                                         'iw_wikiid' => '',
 578                                         'iw_local' => 0 ],
 579                                 'zh' => [
 580                                         'iw_url' => 'http://zh.wikipedia.org/wiki/$1',
 581                                         'iw_api' => '',
 582                                         'iw_wikiid' => '',
 583                                         'iw_local' => 1 ],
 584                                 'es' => [
 585                                         'iw_url' => 'http://es.wikipedia.org/wiki/$1',
 586                                         'iw_api' => '',
 587                                         'iw_wikiid' => '',
 588                                         'iw_local' => 1 ],
 589                                 'fr' => [
 590                                         'iw_url' => 'http://fr.wikipedia.org/wiki/$1',
 591                                         'iw_api' => '',
 592                                         'iw_wikiid' => '',
 593                                         'iw_local' => 1 ],
 594                                 'ru' => [
 595                                         'iw_url' => 'http://ru.wikipedia.org/wiki/$1',
 596                                         'iw_api' => '',
 597                                         'iw_wikiid' => '',
 598                                         'iw_local' => 1 ],
 599                                 'mi' => [
 600                                         'iw_url' => 'http://mi.wikipedia.org/wiki/$1',
 601                                         'iw_api' => '',
 602                                         'iw_wikiid' => '',
 603                                         'iw_local' => 1 ],
 604                                 'mul' => [
 605                                         'iw_url' => 'http://wikisource.org/wiki/$1',
 606                                         'iw_api' => '',
 607                                         'iw_wikiid' => '',
 608                                         'iw_local' => 1 ],
 609                         ];
 610                         if ( array_key_exists( $prefix, $testInterwikis ) ) {
 611                                 $iwData = $testInterwikis[$prefix];
 612                         }
 613
 614                         // We only want to rely on the above fixtures
 615                         return false;
 616                 } );// hooks::register
 617
 618                 return function () {
 619                         // Tear down
 620                         Hooks::clear( 'InterwikiLoadPrefix' );
 621                 };
 622         }
 623
 624         /**
 625          * Reset the Title-related services that need resetting
 626          * for each test
 627          */
 628         private function resetTitleServices() {
 629                 $services = MediaWikiServices::getInstance();
 630                 $services->resetServiceForTesting( 'TitleFormatter' );
 631                 $services->resetServiceForTesting( 'TitleParser' );
 632                 $services->resetServiceForTesting( '_MediaWikiTitleCodec' );
 633                 $services->resetServiceForTesting( 'LinkRenderer' );
 634                 $services->resetServiceForTesting( 'LinkRendererFactory' );
 635         }
 636
 637         /**
 638          * Remove last character if it is a newline
 639          * @group utility
 640          * @param string $s
 641          * @return string
 642          */
 643         public static function chomp( $s ) {
 644                 if ( substr( $s, -1 ) === "\n" ) {
 645                         return substr( $s, 0, -1 );
 646                 } else {
 647                         return $s;
 648                 }
 649         }
 650
 651         /**
 652          * Run a series of tests listed in the given text files.
 653          * Each test consists of a brief description, wikitext input,
 654          * and the expected HTML output.
 655          *
 656          * Prints status updates on stdout and counts up the total
 657          * number and percentage of passed tests.
 658          *
 659          * Handles all setup and teardown.
 660          *
 661          * @param array $filenames Array of strings
 662          * @return bool True if passed all tests, false if any tests failed.
 663          */
 664         public function runTestsFromFiles( $filenames ) {
 665                 $ok = false;
 666
 667                 $teardownGuard = $this->staticSetup();
 668                 $teardownGuard = $this->setupDatabase( $teardownGuard );
 669                 $teardownGuard = $this->setupUploads( $teardownGuard );
 670
 671                 $this->recorder->start();
 672                 try {
 673                         $ok = true;
 674
 675                         foreach ( $filenames as $filename ) {
 676                                 $testFileInfo = TestFileReader::read( $filename, [
 677                                         'runDisabled' => $this->runDisabled,
 678                                         'runParsoid' => $this->runParsoid,
 679                                         'regex' => $this->regex ] );
 680
 681                                 // Don't start the suite if there are no enabled tests in the file
 682                                 if ( !$testFileInfo['tests'] ) {
 683                                         continue;
 684                                 }
 685
 686                                 $this->recorder->startSuite( $filename );
 687                                 $ok = $this->runTests( $testFileInfo ) && $ok;
 688                                 $this->recorder->endSuite( $filename );
 689                         }
 690
 691                         $this->recorder->report();
 692                 } catch ( DBError $e ) {
 693                         $this->recorder->warning( $e->getMessage() );
 694                 }
 695                 $this->recorder->end();
 696
 697                 ScopedCallback::consume( $teardownGuard );
 698
 699                 return $ok;
 700         }
 701
 702         /**
 703          * Determine whether the current parser has the hooks registered in it
 704          * that are required by a file read by TestFileReader.
 705          * @param array $requirements
 706          * @return bool
 707          */
 708         public function meetsRequirements( $requirements ) {
 709                 foreach ( $requirements as $requirement ) {
 710                         switch ( $requirement['type'] ) {
 711                                 case 'hook':
 712                                         $ok = $this->requireHook( $requirement['name'] );
 713                                         break;
 714                                 case 'functionHook':
 715                                         $ok = $this->requireFunctionHook( $requirement['name'] );
 716                                         break;
 717                                 case 'transparentHook':
 718                                         $ok = $this->requireTransparentHook( $requirement['name'] );
 719                                         break;
 720                         }
 721                         if ( !$ok ) {
 722                                 return false;
 723                         }
 724                 }
 725                 return true;
 726         }
 727
 728         /**
 729          * Run the tests from a single file. staticSetup() and setupDatabase()
 730          * must have been called already.
 731          *
 732          * @param array $testFileInfo Parsed file info returned by TestFileReader
 733          * @return bool True if passed all tests, false if any tests failed.
 734          */
 735         public function runTests( $testFileInfo ) {
 736                 $ok = true;
 737
 738                 $this->checkSetupDone( 'staticSetup' );
 739
 740                 // Don't add articles from the file if there are no enabled tests from the file
 741                 if ( !$testFileInfo['tests'] ) {
 742                         return true;
 743                 }
 744
 745                 // If any requirements are not met, mark all tests from the file as skipped
 746                 if ( !$this->meetsRequirements( $testFileInfo['requirements'] ) ) {
 747                         foreach ( $testFileInfo['tests'] as $test ) {
 748                                 $this->recorder->startTest( $test );
 749                                 $this->recorder->skipped( $test, 'required extension not enabled' );
 750                         }
 751                         return true;
 752                 }
 753
 754                 // Add articles
 755                 $this->addArticles( $testFileInfo['articles'] );
 756
 757                 // Run tests
 758                 foreach ( $testFileInfo['tests'] as $test ) {
 759                         $this->recorder->startTest( $test );
 760                         $result =
 761                                 $this->runTest( $test );
 762                         if ( $result !== false ) {
 763                                 $ok = $ok && $result->isSuccess();
 764                                 $this->recorder->record( $test, $result );
 765                         }
 766                 }
 767
 768                 return $ok;
 769         }
 770
 771         /**
 772          * Get a Parser object
 773          *
 774          * @param string $preprocessor
 775          * @return Parser
 776          */
 777         function getParser( $preprocessor = null ) {
 778                 global $wgParserConf;
 779
 780                 $class = $wgParserConf['class'];
 781                 $parser = new $class( [ 'preprocessorClass' => $preprocessor ] + $wgParserConf );
 782                 ParserTestParserHook::setup( $parser );
 783
 784                 return $parser;
 785         }
 786
 787         /**
 788          * Run a given wikitext input through a freshly-constructed wiki parser,
 789          * and compare the output against the expected results.
 790          * Prints status and explanatory messages to stdout.
 791          *
 792          * staticSetup() and setupWikiData() must be called before this function
 793          * is entered.
 794          *
 795          * @param array $test The test parameters:
 796          *  - test: The test name
 797          *  - desc: The subtest description
 798          *  - input: Wikitext to try rendering
 799          *  - options: Array of test options
 800          *  - config: Overrides for global variables, one per line
 801          *
 802          * @return ParserTestResult or false if skipped
 803          */
 804         public function runTest( $test ) {
 805                 wfDebug( __METHOD__.": running {$test['desc']}" );
 806                 $opts = $this->parseOptions( $test['options'] );
 807                 $teardownGuard = $this->perTestSetup( $test );
 808
 809                 $context = RequestContext::getMain();
 810                 $user = $context->getUser();
 811                 $options = ParserOptions::newFromContext( $context );
 812                 $options->setTimestamp( $this->getFakeTimestamp() );
 813
 814                 if ( !isset( $opts['wrap'] ) ) {
 815                         $options->setWrapOutputClass( false );
 816                 }
 817
 818                 if ( isset( $opts['tidy'] ) ) {
 819                         if ( !$this->tidySupport->isEnabled() ) {
 820                                 $this->recorder->skipped( $test, 'tidy extension is not installed' );
 821                                 return false;
 822                         } else {
 823                                 $options->setTidy( true );
 824                         }
 825                 }
 826
 827                 if ( isset( $opts['title'] ) ) {
 828                         $titleText = $opts['title'];
 829                 } else {
 830                         $titleText = 'Parser test';
 831                 }
 832
 833                 $local = isset( $opts['local'] );
 834                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 835                 $parser = $this->getParser( $preprocessor );
 836                 $title = Title::newFromText( $titleText );
 837
 838                 if ( isset( $opts['pst'] ) ) {
 839                         $out = $parser->preSaveTransform( $test['input'], $title, $user, $options );
 840                         $output = $parser->getOutput();
 841                 } elseif ( isset( $opts['msg'] ) ) {
 842                         $out = $parser->transformMsg( $test['input'], $options, $title );
 843                 } elseif ( isset( $opts['section'] ) ) {
 844                         $section = $opts['section'];
 845                         $out = $parser->getSection( $test['input'], $section );
 846                 } elseif ( isset( $opts['replace'] ) ) {
 847                         $section = $opts['replace'][0];
 848                         $replace = $opts['replace'][1];
 849                         $out = $parser->replaceSection( $test['input'], $section, $replace );
 850                 } elseif ( isset( $opts['comment'] ) ) {
 851                         $out = Linker::formatComment( $test['input'], $title, $local );
 852                 } elseif ( isset( $opts['preload'] ) ) {
 853                         $out = $parser->getPreloadText( $test['input'], $title, $options );
 854                 } else {
 855                         $output = $parser->parse( $test['input'], $title, $options, true, true, 1337 );
 856                         $out = $output->getText( [
 857                                 'allowTOC' => !isset( $opts['notoc'] )
 858                         ] );
 859                         if ( isset( $opts['tidy'] ) ) {
 860                                 $out = preg_replace( '/\s+$/', '', $out );
 861                         }
 862
 863                         if ( isset( $opts['showtitle'] ) ) {
 864                                 if ( $output->getTitleText() ) {
 865                                         $title = $output->getTitleText();
 866                                 }
 867
 868                                 $out = "$title\n$out";
 869                         }
 870
 871                         if ( isset( $opts['showindicators'] ) ) {
 872                                 $indicators = '';
 873                                 foreach ( $output->getIndicators() as $id => $content ) {
 874                                         $indicators .= "$id=$content\n";
 875                                 }
 876                                 $out = $indicators . $out;
 877                         }
 878
 879                         if ( isset( $opts['ill'] ) ) {
 880                                 $out = implode( ' ', $output->getLanguageLinks() );
 881                         } elseif ( isset( $opts['cat'] ) ) {
 882                                 $out = '';
 883                                 foreach ( $output->getCategories() as $name => $sortkey ) {
 884                                         if ( $out !== '' ) {
 885                                                 $out .= "\n";
 886                                         }
 887                                         $out .= "cat=$name sort=$sortkey";
 888                                 }
 889                         }
 890                 }
 891
 892                 if ( isset( $output ) && isset( $opts['showflags'] ) ) {
 893                         $actualFlags = array_keys( TestingAccessWrapper::newFromObject( $output )->mFlags );
 894                         sort( $actualFlags );
 895                         $out .= "\nflags=" . join( ', ', $actualFlags );
 896                 }
 897
 898                 ScopedCallback::consume( $teardownGuard );
 899
 900                 $expected = $test['result'];
 901                 if ( count( $this->normalizationFunctions ) ) {
 902                         $expected = ParserTestResultNormalizer::normalize(
 903                                 $test['expected'], $this->normalizationFunctions );
 904                         $out = ParserTestResultNormalizer::normalize( $out, $this->normalizationFunctions );
 905                 }
 906
 907                 $testResult = new ParserTestResult( $test, $expected, $out );
 908                 return $testResult;
 909         }
 910
 911         /**
 912          * Use a regex to find out the value of an option
 913          * @param string $key Name of option val to retrieve
 914          * @param array $opts Options array to look in
 915          * @param mixed $default Default value returned if not found
 916          * @return mixed
 917          */
 918         private static function getOptionValue( $key, $opts, $default ) {
 919                 $key = strtolower( $key );
 920
 921                 if ( isset( $opts[$key] ) ) {
 922                         return $opts[$key];
 923                 } else {
 924                         return $default;
 925                 }
 926         }
 927
 928         /**
 929          * Given the options string, return an associative array of options.
 930          * @todo Move this to TestFileReader
 931          *
 932          * @param string $instring
 933          * @return array
 934          */
 935         private function parseOptions( $instring ) {
 936                 $opts = [];
 937                 // foo
 938                 // foo=bar
 939                 // foo="bar baz"
 940                 // foo=[[bar baz]]
 941                 // foo=bar,"baz quux"
 942                 // foo={...json...}
 943                 $defs = '(?(DEFINE)
 944                         (?<qstr>                                        # Quoted string
 945                                 "
 946                                 (?:[^\\\\"] | \\\\.)*
 947                                 "
 948                         )
 949                         (?<json>
 950                                 \{              # Open bracket
 951                                 (?:
 952                                         [^"{}] |                                # Not a quoted string or object, or
 953                                         (?&qstr) |                              # A quoted string, or
 954                                         (?&json)                                # A json object (recursively)
 955                                 )*
 956                                 \}              # Close bracket
 957                         )
 958                         (?<value>
 959                                 (?:
 960                                         (?&qstr)                        # Quoted val
 961                                 |
 962                                         \[\[
 963                                                 [^]]*                   # Link target
 964                                         \]\]
 965                                 |
 966                                         [\w-]+                          # Plain word
 967                                 |
 968                                         (?&json)                        # JSON object
 969                                 )
 970                         )
 971                 )';
 972                 $regex = '/' . $defs . '\b
 973                         (?<k>[\w-]+)                            # Key
 974                         \b
 975                         (?:\s*
 976                                 =                                               # First sub-value
 977                                 \s*
 978                                 (?<v>
 979                                         (?&value)
 980                                         (?:\s*
 981                                                 ,                               # Sub-vals 1..N
 982                                                 \s*
 983                                                 (?&value)
 984                                         )*
 985                                 )
 986                         )?
 987                         /x';
 988                 $valueregex = '/' . $defs . '(?&value)/x';
 989
 990                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 991                         foreach ( $matches as $bits ) {
 992                                 $key = strtolower( $bits['k'] );
 993                                 if ( !isset( $bits['v'] ) ) {
 994                                         $opts[$key] = true;
 995                                 } else {
 996                                         preg_match_all( $valueregex, $bits['v'], $vmatches );
 997                                         $opts[$key] = array_map( [ $this, 'cleanupOption' ], $vmatches[0] );
 998                                         if ( count( $opts[$key] ) == 1 ) {
 999                                                 $opts[$key] = $opts[$key][0];
1000                                         }
1001                                 }
1002                         }
1003                 }
1004                 return $opts;
1005         }
1006
1007         private function cleanupOption( $opt ) {
1008                 if ( substr( $opt, 0, 1 ) == '"' ) {
1009                         return stripcslashes( substr( $opt, 1, -1 ) );
1010                 }
1011
1012                 if ( substr( $opt, 0, 2 ) == '[[' ) {
1013                         return substr( $opt, 2, -2 );
1014                 }
1015
1016                 if ( substr( $opt, 0, 1 ) == '{' ) {
1017                         return FormatJson::decode( $opt, true );
1018                 }
1019                 return $opt;
1020         }
1021
1022         /**
1023          * Do any required setup which is dependent on test options.
1024          *
1025          * @see staticSetup() for more information about setup/teardown
1026          *
1027          * @param array $test Test info supplied by TestFileReader
1028          * @param callable|null $nextTeardown
1029          * @return ScopedCallback
1030          */
1031         public function perTestSetup( $test, $nextTeardown = null ) {
1032                 $teardown = [];
1033
1034                 $this->checkSetupDone( 'setupDatabase', 'setDatabase' );
1035                 $teardown[] = $this->markSetupDone( 'perTestSetup' );
1036
1037                 $opts = $this->parseOptions( $test['options'] );
1038                 $config = $test['config'];
1039
1040                 // Find out values for some special options.
1041                 $langCode =
1042                         self::getOptionValue( 'language', $opts, 'en' );
1043                 $variant =
1044                         self::getOptionValue( 'variant', $opts, false );
1045                 $maxtoclevel =
1046                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
1047                 $linkHolderBatchSize =
1048                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
1049
1050                 // Default to fallback skin, but allow it to be overridden
1051                 $skin = self::getOptionValue( 'skin', $opts, 'fallback' );
1052
1053                 $setup = [
1054                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
1055                         'wgLanguageCode' => $langCode,
1056                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
1057                         'wgNamespacesWithSubpages' => array_fill_keys(
1058                                 MWNamespace::getValidNamespaces(), isset( $opts['subpage'] )
1059                         ),
1060                         'wgMaxTocLevel' => $maxtoclevel,
1061                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
1062                         'wgThumbLimits' => [ self::getOptionValue( 'thumbsize', $opts, 180 ) ],
1063                         'wgDefaultLanguageVariant' => $variant,
1064                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
1065                         // Set as a JSON object like:
1066                         // wgEnableMagicLinks={"ISBN":false, "PMID":false, "RFC":false}
1067                         'wgEnableMagicLinks' => self::getOptionValue( 'wgEnableMagicLinks', $opts, [] )
1068                                 + [ 'ISBN' => true, 'PMID' => true, 'RFC' => true ],
1069                         // Test with legacy encoding by default until HTML5 is very stable and default
1070                         'wgFragmentMode' => [ 'legacy' ],
1071                 ];
1072
1073                 if ( $config ) {
1074                         $configLines = explode( "\n", $config );
1075
1076                         foreach ( $configLines as $line ) {
1077                                 list( $var, $value )  = explode( '=', $line, 2 );
1078                                 $setup[$var] = eval( "return $value;" );
1079                         }
1080                 }
1081
1082                 /** @since 1.20 */
1083                 Hooks::run( 'ParserTestGlobals', [ &$setup ] );
1084
1085                 // Create tidy driver
1086                 if ( isset( $opts['tidy'] ) ) {
1087                         // Cache a driver instance
1088                         if ( $this->tidyDriver === null ) {
1089                                 $this->tidyDriver = MWTidy::factory( $this->tidySupport->getConfig() );
1090                         }
1091                         $tidy = $this->tidyDriver;
1092                 } else {
1093                         $tidy = false;
1094                 }
1095                 MWTidy::setInstance( $tidy );
1096                 $teardown[] = function () {
1097                         MWTidy::destroySingleton();
1098                 };
1099
1100                 // Set content language. This invalidates the magic word cache and title services
1101                 $lang = Language::factory( $langCode );
1102                 $setup['wgContLang'] = $lang;
1103                 $reset = function () {
1104                         MagicWord::clearCache();
1105                         $this->resetTitleServices();
1106                 };
1107                 $setup[] = $reset;
1108                 $teardown[] = $reset;
1109
1110                 // Make a user object with the same language
1111                 $user = new User;
1112                 $user->setOption( 'language', $langCode );
1113                 $setup['wgLang'] = $lang;
1114
1115                 // We (re)set $wgThumbLimits to a single-element array above.
1116                 $user->setOption( 'thumbsize', 0 );
1117
1118                 $setup['wgUser'] = $user;
1119
1120                 // And put both user and language into the context
1121                 $context = RequestContext::getMain();
1122                 $context->setUser( $user );
1123                 $context->setLanguage( $lang );
1124                 // And the skin!
1125                 $oldSkin = $context->getSkin();
1126                 $skinFactory = MediaWikiServices::getInstance()->getSkinFactory();
1127                 $context->setSkin( $skinFactory->makeSkin( $skin ) );
1128                 $context->setOutput( new OutputPage( $context ) );
1129                 $setup['wgOut'] = $context->getOutput();
1130                 $teardown[] = function () use ( $context, $oldSkin ) {
1131                         // Clear language conversion tables
1132                         $wrapper = TestingAccessWrapper::newFromObject(
1133                                 $context->getLanguage()->getConverter()
1134                         );
1135                         $wrapper->reloadTables();
1136                         // Reset context to the restored globals
1137                         $context->setUser( $GLOBALS['wgUser'] );
1138                         $context->setLanguage( $GLOBALS['wgContLang'] );
1139                         $context->setSkin( $oldSkin );
1140                         $context->setOutput( $GLOBALS['wgOut'] );
1141                 };
1142
1143                 $teardown[] = $this->executeSetupSnippets( $setup );
1144
1145                 return $this->createTeardownObject( $teardown, $nextTeardown );
1146         }
1147
1148         /**
1149          * List of temporary tables to create, without prefix.
1150          * Some of these probably aren't necessary.
1151          * @return array
1152          */
1153         private function listTables() {
1154                 global $wgCommentTableSchemaMigrationStage;
1155
1156                 $tables = [ 'user', 'user_properties', 'user_former_groups', 'page', 'page_restrictions',
1157                         'protected_titles', 'revision', 'ip_changes', 'text', 'pagelinks', 'imagelinks',
1158                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
1159                         'site_stats', 'ipblocks', 'image', 'oldimage',
1160                         'recentchanges', 'watchlist', 'interwiki', 'logging', 'log_search',
1161                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
1162                         'archive', 'user_groups', 'page_props', 'category'
1163                 ];
1164
1165                 if ( $wgCommentTableSchemaMigrationStage >= MIGRATION_WRITE_BOTH ) {
1166                         // The new tables for comments are in use
1167                         $tables[] = 'comment';
1168                         $tables[] = 'revision_comment_temp';
1169                         $tables[] = 'image_comment_temp';
1170                 }
1171
1172                 if ( in_array( $this->db->getType(), [ 'mysql', 'sqlite', 'oracle' ] ) ) {
1173                         array_push( $tables, 'searchindex' );
1174                 }
1175
1176                 // Allow extensions to add to the list of tables to duplicate;
1177                 // may be necessary if they hook into page save or other code
1178                 // which will require them while running tests.
1179                 Hooks::run( 'ParserTestTables', [ &$tables ] );
1180
1181                 return $tables;
1182         }
1183
1184         public function setDatabase( IDatabase $db ) {
1185                 $this->db = $db;
1186                 $this->setupDone['setDatabase'] = true;
1187         }
1188
1189         /**
1190          * Set up temporary DB tables.
1191          *
1192          * For best performance, call this once only for all tests. However, it can
1193          * be called at the start of each test if more isolation is desired.
1194          *
1195          * @todo: This is basically an unrefactored copy of
1196          * MediaWikiTestCase::setupAllTestDBs. They should be factored out somehow.
1197          *
1198          * Do not call this function from a MediaWikiTestCase subclass, since
1199          * MediaWikiTestCase does its own DB setup. Instead use setDatabase().
1200          *
1201          * @see staticSetup() for more information about setup/teardown
1202          *
1203          * @param ScopedCallback|null $nextTeardown The next teardown object
1204          * @return ScopedCallback The teardown object
1205          */
1206         public function setupDatabase( $nextTeardown = null ) {
1207                 global $wgDBprefix;
1208
1209                 $this->db = wfGetDB( DB_MASTER );
1210                 $dbType = $this->db->getType();
1211
1212                 if ( $dbType == 'oracle' ) {
1213                         $suspiciousPrefixes = [ 'pt_', MediaWikiTestCase::ORA_DB_PREFIX ];
1214                 } else {
1215                         $suspiciousPrefixes = [ 'parsertest_', MediaWikiTestCase::DB_PREFIX ];
1216                 }
1217                 if ( in_array( $wgDBprefix, $suspiciousPrefixes ) ) {
1218                         throw new MWException( "\$wgDBprefix=$wgDBprefix suggests DB setup is already done" );
1219                 }
1220
1221                 $teardown = [];
1222
1223                 $teardown[] = $this->markSetupDone( 'setupDatabase' );
1224
1225                 # CREATE TEMPORARY TABLE breaks if there is more than one server
1226                 if ( wfGetLB()->getServerCount() != 1 ) {
1227                         $this->useTemporaryTables = false;
1228                 }
1229
1230                 $temporary = $this->useTemporaryTables || $dbType == 'postgres';
1231                 $prefix = $dbType != 'oracle' ? 'parsertest_' : 'pt_';
1232
1233                 $this->dbClone = new CloneDatabase( $this->db, $this->listTables(), $prefix );
1234                 $this->dbClone->useTemporaryTables( $temporary );
1235                 $this->dbClone->cloneTableStructure();
1236
1237                 if ( $dbType == 'oracle' ) {
1238                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1239                         # Insert 0 user to prevent FK violations
1240
1241                         # Anonymous user
1242                         $this->db->insert( 'user', [
1243                                 'user_id' => 0,
1244                                 'user_name' => 'Anonymous' ] );
1245                 }
1246
1247                 $teardown[] = function () {
1248                         $this->teardownDatabase();
1249                 };
1250
1251                 // Wipe some DB query result caches on setup and teardown
1252                 $reset = function () {
1253                         LinkCache::singleton()->clear();
1254
1255                         // Clear the message cache
1256                         MessageCache::singleton()->clear();
1257                 };
1258                 $reset();
1259                 $teardown[] = $reset;
1260                 return $this->createTeardownObject( $teardown, $nextTeardown );
1261         }
1262
1263         /**
1264          * Add data about uploads to the new test DB, and set up the upload
1265          * directory. This should be called after either setDatabase() or
1266          * setupDatabase().
1267          *
1268          * @param ScopedCallback|null $nextTeardown The next teardown object
1269          * @return ScopedCallback The teardown object
1270          */
1271         public function setupUploads( $nextTeardown = null ) {
1272                 $teardown = [];
1273
1274                 $this->checkSetupDone( 'setupDatabase', 'setDatabase' );
1275                 $teardown[] = $this->markSetupDone( 'setupUploads' );
1276
1277                 // Create the files in the upload directory (or pretend to create them
1278                 // in a MockFileBackend). Append teardown callback.
1279                 $teardown[] = $this->setupUploadBackend();
1280
1281                 // Create a user
1282                 $user = User::createNew( 'WikiSysop' );
1283
1284                 // Register the uploads in the database
1285
1286                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
1287                 # note that the size/width/height/bits/etc of the file
1288                 # are actually set by inspecting the file itself; the arguments
1289                 # to recordUpload2 have no effect.  That said, we try to make things
1290                 # match up so it is less confusing to readers of the code & tests.
1291                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', [
1292                         'size' => 7881,
1293                         'width' => 1941,
1294                         'height' => 220,
1295                         'bits' => 8,
1296                         'media_type' => MEDIATYPE_BITMAP,
1297                         'mime' => 'image/jpeg',
1298                         'metadata' => serialize( [] ),
1299                         'sha1' => Wikimedia\base_convert( '1', 16, 36, 31 ),
1300                         'fileExists' => true
1301                 ], $this->db->timestamp( '20010115123500' ), $user );
1302
1303                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
1304                 # again, note that size/width/height below are ignored; see above.
1305                 $image->recordUpload2( '', 'Upload of some lame thumbnail', 'Some lame thumbnail', [
1306                         'size' => 22589,
1307                         'width' => 135,
1308                         'height' => 135,
1309                         'bits' => 8,
1310                         'media_type' => MEDIATYPE_BITMAP,
1311                         'mime' => 'image/png',
1312                         'metadata' => serialize( [] ),
1313                         'sha1' => Wikimedia\base_convert( '2', 16, 36, 31 ),
1314                         'fileExists' => true
1315                 ], $this->db->timestamp( '20130225203040' ), $user );
1316
1317                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
1318                 $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', [
1319                                 'size'        => 12345,
1320                                 'width'       => 240,
1321                                 'height'      => 180,
1322                                 'bits'        => 0,
1323                                 'media_type'  => MEDIATYPE_DRAWING,
1324                                 'mime'        => 'image/svg+xml',
1325                                 'metadata'    => serialize( [] ),
1326                                 'sha1'        => Wikimedia\base_convert( '', 16, 36, 31 ),
1327                                 'fileExists'  => true
1328                 ], $this->db->timestamp( '20010115123500' ), $user );
1329
1330                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
1331                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
1332                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', [
1333                         'size' => 12345,
1334                         'width' => 320,
1335                         'height' => 240,
1336                         'bits' => 24,
1337                         'media_type' => MEDIATYPE_BITMAP,
1338                         'mime' => 'image/jpeg',
1339                         'metadata' => serialize( [] ),
1340                         'sha1' => Wikimedia\base_convert( '3', 16, 36, 31 ),
1341                         'fileExists' => true
1342                 ], $this->db->timestamp( '20010115123500' ), $user );
1343
1344                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Video.ogv' ) );
1345                 $image->recordUpload2( '', 'A pretty movie', 'Will it play', [
1346                         'size' => 12345,
1347                         'width' => 320,
1348                         'height' => 240,
1349                         'bits' => 0,
1350                         'media_type' => MEDIATYPE_VIDEO,
1351                         'mime' => 'application/ogg',
1352                         'metadata' => serialize( [] ),
1353                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1354                         'fileExists' => true
1355                 ], $this->db->timestamp( '20010115123500' ), $user );
1356
1357                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Audio.oga' ) );
1358                 $image->recordUpload2( '', 'An awesome hitsong', 'Will it play', [
1359                         'size' => 12345,
1360                         'width' => 0,
1361                         'height' => 0,
1362                         'bits' => 0,
1363                         'media_type' => MEDIATYPE_AUDIO,
1364                         'mime' => 'application/ogg',
1365                         'metadata' => serialize( [] ),
1366                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1367                         'fileExists' => true
1368                 ], $this->db->timestamp( '20010115123500' ), $user );
1369
1370                 # A DjVu file
1371                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'LoremIpsum.djvu' ) );
1372                 $image->recordUpload2( '', 'Upload a DjVu', 'A DjVu', [
1373                         'size' => 3249,
1374                         'width' => 2480,
1375                         'height' => 3508,
1376                         'bits' => 0,
1377                         'media_type' => MEDIATYPE_BITMAP,
1378                         'mime' => 'image/vnd.djvu',
1379                         'metadata' => '<?xml version="1.0" ?>
1380 <!DOCTYPE DjVuXML PUBLIC "-//W3C//DTD DjVuXML 1.1//EN" "pubtext/DjVuXML-s.dtd">
1381 <DjVuXML>
1382 <HEAD></HEAD>
1383 <BODY><OBJECT height="3508" width="2480">
1384 <PARAM name="DPI" value="300" />
1385 <PARAM name="GAMMA" value="2.2" />
1386 </OBJECT>
1387 <OBJECT height="3508" width="2480">
1388 <PARAM name="DPI" value="300" />
1389 <PARAM name="GAMMA" value="2.2" />
1390 </OBJECT>
1391 <OBJECT height="3508" width="2480">
1392 <PARAM name="DPI" value="300" />
1393 <PARAM name="GAMMA" value="2.2" />
1394 </OBJECT>
1395 <OBJECT height="3508" width="2480">
1396 <PARAM name="DPI" value="300" />
1397 <PARAM name="GAMMA" value="2.2" />
1398 </OBJECT>
1399 <OBJECT height="3508" width="2480">
1400 <PARAM name="DPI" value="300" />
1401 <PARAM name="GAMMA" value="2.2" />
1402 </OBJECT>
1403 </BODY>
1404 </DjVuXML>',
1405                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1406                         'fileExists' => true
1407                 ], $this->db->timestamp( '20010115123600' ), $user );
1408
1409                 return $this->createTeardownObject( $teardown, $nextTeardown );
1410         }
1411
1412         /**
1413          * Helper for database teardown, called from the teardown closure. Destroy
1414          * the database clone and fix up some things that CloneDatabase doesn't fix.
1415          *
1416          * @todo Move most things here to CloneDatabase
1417          */
1418         private function teardownDatabase() {
1419                 $this->checkSetupDone( 'setupDatabase' );
1420
1421                 $this->dbClone->destroy();
1422                 $this->databaseSetupDone = false;
1423
1424                 if ( $this->useTemporaryTables ) {
1425                         if ( $this->db->getType() == 'sqlite' ) {
1426                                 # Under SQLite the searchindex table is virtual and need
1427                                 # to be explicitly destroyed. See T31912
1428                                 # See also MediaWikiTestCase::destroyDB()
1429                                 wfDebug( __METHOD__ . " explicitly destroying sqlite virtual table parsertest_searchindex\n" );
1430                                 $this->db->query( "DROP TABLE `parsertest_searchindex`" );
1431                         }
1432                         # Don't need to do anything
1433                         return;
1434                 }
1435
1436                 $tables = $this->listTables();
1437
1438                 foreach ( $tables as $table ) {
1439                         if ( $this->db->getType() == 'oracle' ) {
1440                                 $this->db->query( "DROP TABLE pt_$table DROP CONSTRAINTS" );
1441                         } else {
1442                                 $this->db->query( "DROP TABLE `parsertest_$table`" );
1443                         }
1444                 }
1445
1446                 if ( $this->db->getType() == 'oracle' ) {
1447                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1448                 }
1449         }
1450
1451         /**
1452          * Upload test files to the backend created by createRepoGroup().
1453          *
1454          * @return callable The teardown callback
1455          */
1456         private function setupUploadBackend() {
1457                 global $IP;
1458
1459                 $repo = RepoGroup::singleton()->getLocalRepo();
1460                 $base = $repo->getZonePath( 'public' );
1461                 $backend = $repo->getBackend();
1462                 $backend->prepare( [ 'dir' => "$base/3/3a" ] );
1463                 $backend->store( [
1464                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg",
1465                         'dst' => "$base/3/3a/Foobar.jpg"
1466                 ] );
1467                 $backend->prepare( [ 'dir' => "$base/e/ea" ] );
1468                 $backend->store( [
1469                         'src' => "$IP/tests/phpunit/data/parser/wiki.png",
1470                         'dst' => "$base/e/ea/Thumb.png"
1471                 ] );
1472                 $backend->prepare( [ 'dir' => "$base/0/09" ] );
1473                 $backend->store( [
1474                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg",
1475                         'dst' => "$base/0/09/Bad.jpg"
1476                 ] );
1477                 $backend->prepare( [ 'dir' => "$base/5/5f" ] );
1478                 $backend->store( [
1479                         'src' => "$IP/tests/phpunit/data/parser/LoremIpsum.djvu",
1480                         'dst' => "$base/5/5f/LoremIpsum.djvu"
1481                 ] );
1482
1483                 // No helpful SVG file to copy, so make one ourselves
1484                 $data = '<?xml version="1.0" encoding="utf-8"?>' .
1485                         '<svg xmlns="http://www.w3.org/2000/svg"' .
1486                         ' version="1.1" width="240" height="180"/>';
1487
1488                 $backend->prepare( [ 'dir' => "$base/f/ff" ] );
1489                 $backend->quickCreate( [
1490                         'content' => $data, 'dst' => "$base/f/ff/Foobar.svg"
1491                 ] );
1492
1493                 return function () use ( $backend ) {
1494                         if ( $backend instanceof MockFileBackend ) {
1495                                 // In memory backend, so dont bother cleaning them up.
1496                                 return;
1497                         }
1498                         $this->teardownUploadBackend();
1499                 };
1500         }
1501
1502         /**
1503          * Remove the dummy uploads directory
1504          */
1505         private function teardownUploadBackend() {
1506                 if ( $this->keepUploads ) {
1507                         return;
1508                 }
1509
1510                 $repo = RepoGroup::singleton()->getLocalRepo();
1511                 $public = $repo->getZonePath( 'public' );
1512
1513                 $this->deleteFiles(
1514                         [
1515                                 "$public/3/3a/Foobar.jpg",
1516                                 "$public/e/ea/Thumb.png",
1517                                 "$public/0/09/Bad.jpg",
1518                                 "$public/5/5f/LoremIpsum.djvu",
1519                                 "$public/f/ff/Foobar.svg",
1520                                 "$public/0/00/Video.ogv",
1521                                 "$public/4/41/Audio.oga",
1522                         ]
1523                 );
1524         }
1525
1526         /**
1527          * Delete the specified files and their parent directories
1528          * @param array $files File backend URIs mwstore://...
1529          */
1530         private function deleteFiles( $files ) {
1531                 // Delete the files
1532                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
1533                 foreach ( $files as $file ) {
1534                         $backend->delete( [ 'src' => $file ], [ 'force' => 1 ] );
1535                 }
1536
1537                 // Delete the parent directories
1538                 foreach ( $files as $file ) {
1539                         $tmp = FileBackend::parentStoragePath( $file );
1540                         while ( $tmp ) {
1541                                 if ( !$backend->clean( [ 'dir' => $tmp ] )->isOK() ) {
1542                                         break;
1543                                 }
1544                                 $tmp = FileBackend::parentStoragePath( $tmp );
1545                         }
1546                 }
1547         }
1548
1549         /**
1550          * Add articles to the test DB.
1551          *
1552          * @param array $articles Article info array from TestFileReader
1553          */
1554         public function addArticles( $articles ) {
1555                 global $wgContLang;
1556                 $setup = [];
1557                 $teardown = [];
1558
1559                 // Be sure ParserTestRunner::addArticle has correct language set,
1560                 // so that system messages get into the right language cache
1561                 if ( $wgContLang->getCode() !== 'en' ) {
1562                         $setup['wgLanguageCode'] = 'en';
1563                         $setup['wgContLang'] = Language::factory( 'en' );
1564                 }
1565
1566                 // Add special namespaces, in case that hasn't been done by staticSetup() yet
1567                 $this->appendNamespaceSetup( $setup, $teardown );
1568
1569                 // wgCapitalLinks obviously needs initialisation
1570                 $setup['wgCapitalLinks'] = true;
1571
1572                 $teardown[] = $this->executeSetupSnippets( $setup );
1573
1574                 foreach ( $articles as $info ) {
1575                         $this->addArticle( $info['name'], $info['text'], $info['file'], $info['line'] );
1576                 }
1577
1578                 // Wipe WANObjectCache process cache, which is invalidated by article insertion
1579                 // due to T144706
1580                 ObjectCache::getMainWANInstance()->clearProcessCache();
1581
1582                 $this->executeSetupSnippets( $teardown );
1583         }
1584
1585         /**
1586          * Insert a temporary test article
1587          * @param string $name The title, including any prefix
1588          * @param string $text The article text
1589          * @param string $file The input file name
1590          * @param int|string $line The input line number, for reporting errors
1591          * @throws Exception
1592          * @throws MWException
1593          */
1594         private function addArticle( $name, $text, $file, $line ) {
1595                 $text = self::chomp( $text );
1596                 $name = self::chomp( $name );
1597
1598                 $title = Title::newFromText( $name );
1599                 wfDebug( __METHOD__ . ": adding $name" );
1600
1601                 if ( is_null( $title ) ) {
1602                         throw new MWException( "invalid title '$name' at $file:$line\n" );
1603                 }
1604
1605                 $newContent = ContentHandler::makeContent( $text, $title );
1606
1607                 $page = WikiPage::factory( $title );
1608                 $page->loadPageData( 'fromdbmaster' );
1609
1610                 if ( $page->exists() ) {
1611                         $content = $page->getContent( Revision::RAW );
1612                         // Only reject the title, if the content/content model is different.
1613                         // This makes it easier to create Template:(( or Template:)) in different extensions
1614                         if ( $newContent->equals( $content ) ) {
1615                                 return;
1616                         }
1617                         throw new MWException(
1618                                 "duplicate article '$name' with different content at $file:$line\n"
1619                         );
1620                 }
1621
1622                 // Use mock parser, to make debugging of actual parser tests simpler.
1623                 // But initialise the MessageCache clone first, don't let MessageCache
1624                 // get a reference to the mock object.
1625                 MessageCache::singleton()->getParser();
1626                 $restore = $this->executeSetupSnippets( [ 'wgParser' => new ParserTestMockParser ] );
1627                 try {
1628                         $status = $page->doEditContent(
1629                                 $newContent,
1630                                 '',
1631                                 EDIT_NEW | EDIT_INTERNAL
1632                         );
1633                 } finally {
1634                         $restore();
1635                 }
1636
1637                 if ( !$status->isOK() ) {
1638                         throw new MWException( $status->getWikiText( false, false, 'en' ) );
1639                 }
1640
1641                 // The RepoGroup cache is invalidated by the creation of file redirects
1642                 if ( $title->inNamespace( NS_FILE ) ) {
1643                         RepoGroup::singleton()->clearCache( $title );
1644                 }
1645         }
1646
1647         /**
1648          * Check if a hook is installed
1649          *
1650          * @param string $name
1651          * @return bool True if tag hook is present
1652          */
1653         public function requireHook( $name ) {
1654                 global $wgParser;
1655
1656                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1657                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1658                         return true;
1659                 } else {
1660                         $this->recorder->warning( "   This test suite requires the '$name' hook " .
1661                                 "extension, skipping." );
1662                         return false;
1663                 }
1664         }
1665
1666         /**
1667          * Check if a function hook is installed
1668          *
1669          * @param string $name
1670          * @return bool True if function hook is present
1671          */
1672         public function requireFunctionHook( $name ) {
1673                 global $wgParser;
1674
1675                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1676
1677                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1678                         return true;
1679                 } else {
1680                         $this->recorder->warning( "   This test suite requires the '$name' function " .
1681                                 "hook extension, skipping." );
1682                         return false;
1683                 }
1684         }
1685
1686         /**
1687          * Check if a transparent tag hook is installed
1688          *
1689          * @param string $name
1690          * @return bool True if function hook is present
1691          */
1692         public function requireTransparentHook( $name ) {
1693                 global $wgParser;
1694
1695                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1696
1697                 if ( isset( $wgParser->mTransparentTagHooks[$name] ) ) {
1698                         return true;
1699                 } else {
1700                         $this->recorder->warning( "   This test suite requires the '$name' transparent " .
1701                                 "hook extension, skipping.\n" );
1702                         return false;
1703                 }
1704         }
1705
1706         /**
1707          * Fake constant timestamp to make sure time-related parser
1708          * functions give a persistent value.
1709          *
1710          * - Parser::getVariableValue (via ParserGetVariableValueTs hook)
1711          * - Parser::preSaveTransform (via ParserOptions)
1712          */
1713         private function getFakeTimestamp() {
1714                 // parsed as '1970-01-01T00:02:03Z'
1715                 return 123;
1716         }
1717 }