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 MediaWiki\MediaWikiServices;
  29 use Wikimedia\ScopedCallback;
  30
  31 /**
  32  * @ingroup Testing
  33  */
  34 class ParserTestRunner {
  35         /**
  36          * @var bool $useTemporaryTables Use temporary tables for the temporary database
  37          */
  38         private $useTemporaryTables = true;
  39
  40         /**
  41          * @var array $setupDone The status of each setup function
  42          */
  43         private $setupDone = [
  44                 'staticSetup' => false,
  45                 'perTestSetup' => false,
  46                 'setupDatabase' => false,
  47                 'setDatabase' => false,
  48                 'setupUploads' => false,
  49         ];
  50
  51         /**
  52          * Our connection to the database
  53          * @var Database
  54          */
  55         private $db;
  56
  57         /**
  58          * Database clone helper
  59          * @var CloneDatabase
  60          */
  61         private $dbClone;
  62
  63         /**
  64          * @var TidySupport
  65          */
  66         private $tidySupport;
  67
  68         /**
  69          * @var TidyDriverBase
  70          */
  71         private $tidyDriver = null;
  72
  73         /**
  74          * @var TestRecorder
  75          */
  76         private $recorder;
  77
  78         /**
  79          * The upload directory, or null to not set up an upload directory
  80          *
  81          * @var string|null
  82          */
  83         private $uploadDir = null;
  84
  85         /**
  86          * The name of the file backend to use, or null to use MockFileBackend.
  87          * @var string|null
  88          */
  89         private $fileBackendName;
  90
  91         /**
  92          * A complete regex for filtering tests.
  93          * @var string
  94          */
  95         private $regex;
  96
  97         /**
  98          * A list of normalization functions to apply to the expected and actual
  99          * output.
 100          * @var array
 101          */
 102         private $normalizationFunctions = [];
 103
 104         /**
 105          * @param TestRecorder $recorder
 106          * @param array $options
 107          */
 108         public function __construct( TestRecorder $recorder, $options = [] ) {
 109                 $this->recorder = $recorder;
 110
 111                 if ( isset( $options['norm'] ) ) {
 112                         foreach ( $options['norm'] as $func ) {
 113                                 if ( in_array( $func, [ 'removeTbody', 'trimWhitespace' ] ) ) {
 114                                         $this->normalizationFunctions[] = $func;
 115                                 } else {
 116                                         $this->recorder->warning(
 117                                                 "Warning: unknown normalization option \"$func\"\n" );
 118                                 }
 119                         }
 120                 }
 121
 122                 if ( isset( $options['regex'] ) && $options['regex'] !== false ) {
 123                         $this->regex = $options['regex'];
 124                 } else {
 125                         # Matches anything
 126                         $this->regex = '//';
 127                 }
 128
 129                 $this->keepUploads = !empty( $options['keep-uploads'] );
 130
 131                 $this->fileBackendName = isset( $options['file-backend'] ) ?
 132                         $options['file-backend'] : false;
 133
 134                 $this->runDisabled = !empty( $options['run-disabled'] );
 135                 $this->runParsoid = !empty( $options['run-parsoid'] );
 136
 137                 $this->tidySupport = new TidySupport( !empty( $options['use-tidy-config'] ) );
 138                 if ( !$this->tidySupport->isEnabled() ) {
 139                         $this->recorder->warning(
 140                                 "Warning: tidy is not installed, skipping some tests\n" );
 141                 }
 142
 143                 if ( isset( $options['upload-dir'] ) ) {
 144                         $this->uploadDir = $options['upload-dir'];
 145                 }
 146         }
 147
 148         public function getRecorder() {
 149                 return $this->recorder;
 150         }
 151
 152         /**
 153          * Do any setup which can be done once for all tests, independent of test
 154          * options, except for database setup.
 155          *
 156          * Public setup functions in this class return a ScopedCallback object. When
 157          * this object is destroyed by going out of scope, teardown of the
 158          * corresponding test setup is performed.
 159          *
 160          * Teardown objects may be chained by passing a ScopedCallback from a
 161          * previous setup stage as the $nextTeardown parameter. This enforces the
 162          * convention that teardown actions are taken in reverse order to the
 163          * corresponding setup actions. When $nextTeardown is specified, a
 164          * ScopedCallback will be returned which first tears down the current
 165          * setup stage, and then tears down the previous setup stage which was
 166          * specified by $nextTeardown.
 167          *
 168          * @param ScopedCallback|null $nextTeardown
 169          * @return ScopedCallback
 170          */
 171         public function staticSetup( $nextTeardown = null ) {
 172                 // A note on coding style:
 173
 174                 // The general idea here is to keep setup code together with
 175                 // corresponding teardown code, in a fine-grained manner. We have two
 176                 // arrays: $setup and $teardown. The code snippets in the $setup array
 177                 // are executed at the end of the method, before it returns, and the
 178                 // code snippets in the $teardown array are executed in reverse order
 179                 // when the Wikimedia\ScopedCallback object is consumed.
 180
 181                 // Because it is a common operation to save, set and restore global
 182                 // variables, we have an additional convention: when the array key of
 183                 // $setup is a string, the string is taken to be the name of the global
 184                 // variable, and the element value is taken to be the desired new value.
 185
 186                 // It's acceptable to just do the setup immediately, instead of adding
 187                 // a closure to $setup, except when the setup action depends on global
 188                 // variable initialisation being done first. In this case, you have to
 189                 // append a closure to $setup after the global variable is appended.
 190
 191                 // When you add to setup functions in this class, please keep associated
 192                 // setup and teardown actions together in the source code, and please
 193                 // add comments explaining why the setup action is necessary.
 194
 195                 $setup = [];
 196                 $teardown = [];
 197
 198                 $teardown[] = $this->markSetupDone( 'staticSetup' );
 199
 200                 // Some settings which influence HTML output
 201                 $setup['wgSitename'] = 'MediaWiki';
 202                 $setup['wgServer'] = 'http://example.org';
 203                 $setup['wgServerName'] = 'example.org';
 204                 $setup['wgScriptPath'] = '';
 205                 $setup['wgScript'] = '/index.php';
 206                 $setup['wgResourceBasePath'] = '';
 207                 $setup['wgStylePath'] = '/skins';
 208                 $setup['wgExtensionAssetsPath'] = '/extensions';
 209                 $setup['wgArticlePath'] = '/wiki/$1';
 210                 $setup['wgActionPaths'] = [];
 211                 $setup['wgVariantArticlePath'] = false;
 212                 $setup['wgUploadNavigationUrl'] = false;
 213                 $setup['wgCapitalLinks'] = true;
 214                 $setup['wgNoFollowLinks'] = true;
 215                 $setup['wgNoFollowDomainExceptions'] = [ 'no-nofollow.org' ];
 216                 $setup['wgExternalLinkTarget'] = false;
 217                 $setup['wgExperimentalHtmlIds'] = false;
 218                 $setup['wgLocaltimezone'] = 'UTC';
 219                 $setup['wgHtml5'] = true;
 220                 $setup['wgDisableLangConversion'] = false;
 221                 $setup['wgDisableTitleConversion'] = false;
 222
 223                 // "extra language links"
 224                 // see https://gerrit.wikimedia.org/r/111390
 225                 $setup['wgExtraInterlanguageLinkPrefixes'] = [ 'mul' ];
 226
 227                 // All FileRepo changes should be done here by injecting services,
 228                 // there should be no need to change global variables.
 229                 RepoGroup::setSingleton( $this->createRepoGroup() );
 230                 $teardown[] = function () {
 231                         RepoGroup::destroySingleton();
 232                 };
 233
 234                 // Set up null lock managers
 235                 $setup['wgLockManagers'] = [ [
 236                         'name' => 'fsLockManager',
 237                         'class' => 'NullLockManager',
 238                 ], [
 239                         'name' => 'nullLockManager',
 240                         'class' => 'NullLockManager',
 241                 ] ];
 242                 $reset = function() {
 243                         LockManagerGroup::destroySingletons();
 244                 };
 245                 $setup[] = $reset;
 246                 $teardown[] = $reset;
 247
 248                 // This allows article insertion into the prefixed DB
 249                 $setup['wgDefaultExternalStore'] = false;
 250
 251                 // This might slightly reduce memory usage
 252                 $setup['wgAdaptiveMessageCache'] = true;
 253
 254                 // This is essential and overrides disabling of database messages in TestSetup
 255                 $setup['wgUseDatabaseMessages'] = true;
 256                 $reset = function () {
 257                         MessageCache::destroyInstance();
 258                 };
 259                 $setup[] = $reset;
 260                 $teardown[] = $reset;
 261
 262                 // It's not necessary to actually convert any files
 263                 $setup['wgSVGConverter'] = 'null';
 264                 $setup['wgSVGConverters'] = [ 'null' => 'echo "1">$output' ];
 265
 266                 // Fake constant timestamp
 267                 Hooks::register( 'ParserGetVariableValueTs', 'ParserTestRunner::getFakeTimestamp' );
 268                 $teardown[] = function () {
 269                         Hooks::clear( 'ParserGetVariableValueTs' );
 270                 };
 271
 272                 $this->appendNamespaceSetup( $setup, $teardown );
 273
 274                 // Set up interwikis and append teardown function
 275                 $teardown[] = $this->setupInterwikis();
 276
 277                 // This affects title normalization in links. It invalidates
 278                 // MediaWikiTitleCodec objects.
 279                 $setup['wgLocalInterwikis'] = [ 'local', 'mi' ];
 280                 $reset = function () {
 281                         $this->resetTitleServices();
 282                 };
 283                 $setup[] = $reset;
 284                 $teardown[] = $reset;
 285
 286                 // Set up a mock MediaHandlerFactory
 287                 MediaWikiServices::getInstance()->disableService( 'MediaHandlerFactory' );
 288                 MediaWikiServices::getInstance()->redefineService(
 289                         'MediaHandlerFactory',
 290                         function() {
 291                                 return new MockMediaHandlerFactory();
 292                         }
 293                 );
 294                 $teardown[] = function () {
 295                         MediaWikiServices::getInstance()->resetServiceForTesting( 'MediaHandlerFactory' );
 296                 };
 297
 298                 // SqlBagOStuff broke when using temporary tables on r40209 (bug 15892).
 299                 // It seems to have been fixed since (r55079?), but regressed at some point before r85701.
 300                 // This works around it for now...
 301                 global $wgObjectCaches;
 302                 $setup['wgObjectCaches'] = [ CACHE_DB => $wgObjectCaches['hash'] ] + $wgObjectCaches;
 303                 if ( isset( ObjectCache::$instances[CACHE_DB] ) ) {
 304                         $savedCache = ObjectCache::$instances[CACHE_DB];
 305                         ObjectCache::$instances[CACHE_DB] = new HashBagOStuff;
 306                         $teardown[] = function () use ( $savedCache ) {
 307                                 ObjectCache::$instances[CACHE_DB] = $savedCache;
 308                         };
 309                 }
 310
 311                 $teardown[] = $this->executeSetupSnippets( $setup );
 312
 313                 // Schedule teardown snippets in reverse order
 314                 return $this->createTeardownObject( $teardown, $nextTeardown );
 315         }
 316
 317         private function appendNamespaceSetup( &$setup, &$teardown ) {
 318                 // Add a namespace shadowing a interwiki link, to test
 319                 // proper precedence when resolving links. (bug 51680)
 320                 $setup['wgExtraNamespaces'] = [
 321                         100 => 'MemoryAlpha',
 322                         101 => 'MemoryAlpha_talk'
 323                 ];
 324                 // Changing wgExtraNamespaces invalidates caches in MWNamespace and
 325                 // any live Language object, both on setup and teardown
 326                 $reset = function () {
 327                         MWNamespace::getCanonicalNamespaces( true );
 328                         $GLOBALS['wgContLang']->resetNamespaces();
 329                 };
 330                 $setup[] = $reset;
 331                 $teardown[] = $reset;
 332         }
 333
 334         /**
 335          * Create a RepoGroup object appropriate for the current configuration
 336          * @return RepoGroup
 337          */
 338         protected function createRepoGroup() {
 339                 if ( $this->uploadDir ) {
 340                         if ( $this->fileBackendName ) {
 341                                 throw new MWException( 'You cannot specify both use-filebackend and upload-dir' );
 342                         }
 343                         $backend = new FSFileBackend( [
 344                                 'name' => 'local-backend',
 345                                 'wikiId' => wfWikiID(),
 346                                 'basePath' => $this->uploadDir,
 347                                 'tmpDirectory' => wfTempDir()
 348                         ] );
 349                 } elseif ( $this->fileBackendName ) {
 350                         global $wgFileBackends;
 351                         $name = $this->fileBackendName;
 352                         $useConfig = false;
 353                         foreach ( $wgFileBackends as $conf ) {
 354                                 if ( $conf['name'] === $name ) {
 355                                         $useConfig = $conf;
 356                                 }
 357                         }
 358                         if ( $useConfig === false ) {
 359                                 throw new MWException( "Unable to find file backend \"$name\"" );
 360                         }
 361                         $useConfig['name'] = 'local-backend'; // swap name
 362                         unset( $useConfig['lockManager'] );
 363                         unset( $useConfig['fileJournal'] );
 364                         $class = $useConfig['class'];
 365                         $backend = new $class( $useConfig );
 366                 } else {
 367                         # Replace with a mock. We do not care about generating real
 368                         # files on the filesystem, just need to expose the file
 369                         # informations.
 370                         $backend = new MockFileBackend( [
 371                                 'name' => 'local-backend',
 372                                 'wikiId' => wfWikiID()
 373                         ] );
 374                 }
 375
 376                 return new RepoGroup(
 377                         [
 378                                 'class' => 'MockLocalRepo',
 379                                 'name' => 'local',
 380                                 'url' => 'http://example.com/images',
 381                                 'hashLevels' => 2,
 382                                 'transformVia404' => false,
 383                                 'backend' => $backend
 384                         ],
 385                         []
 386                 );
 387         }
 388
 389         /**
 390          * Execute an array in which elements with integer keys are taken to be
 391          * callable objects, and other elements are taken to be global variable
 392          * set operations, with the key giving the variable name and the value
 393          * giving the new global variable value. A closure is returned which, when
 394          * executed, sets the global variables back to the values they had before
 395          * this function was called.
 396          *
 397          * @see staticSetup
 398          *
 399          * @param array $setup
 400          * @return closure
 401          */
 402         protected function executeSetupSnippets( $setup ) {
 403                 $saved = [];
 404                 foreach ( $setup as $name => $value ) {
 405                         if ( is_int( $name ) ) {
 406                                 $value();
 407                         } else {
 408                                 $saved[$name] = isset( $GLOBALS[$name] ) ? $GLOBALS[$name] : null;
 409                                 $GLOBALS[$name] = $value;
 410                         }
 411                 }
 412                 return function () use ( $saved ) {
 413                         $this->executeSetupSnippets( $saved );
 414                 };
 415         }
 416
 417         /**
 418          * Take a setup array in the same format as the one given to
 419          * executeSetupSnippets(), and return a ScopedCallback which, when consumed,
 420          * executes the snippets in the setup array in reverse order. This is used
 421          * to create "teardown objects" for the public API.
 422          *
 423          * @see staticSetup
 424          *
 425          * @param array $teardown The snippet array
 426          * @param ScopedCallback|null A ScopedCallback to consume
 427          * @return ScopedCallback
 428          */
 429         protected function createTeardownObject( $teardown, $nextTeardown = null ) {
 430                 return new ScopedCallback( function() use ( $teardown, $nextTeardown ) {
 431                         // Schedule teardown snippets in reverse order
 432                         $teardown = array_reverse( $teardown );
 433
 434                         $this->executeSetupSnippets( $teardown );
 435                         if ( $nextTeardown ) {
 436                                 ScopedCallback::consume( $nextTeardown );
 437                         }
 438                 } );
 439         }
 440
 441         /**
 442          * Set a setupDone flag to indicate that setup has been done, and return
 443          * the teardown closure. If the flag was already set, throw an exception.
 444          *
 445          * @param string $funcName The setup function name
 446          * @return closure
 447          */
 448         protected function markSetupDone( $funcName ) {
 449                 if ( $this->setupDone[$funcName] ) {
 450                         throw new MWException( "$funcName is already done" );
 451                 }
 452                 $this->setupDone[$funcName] = true;
 453                 return function () use ( $funcName ) {
 454                         $this->setupDone[$funcName] = false;
 455                 };
 456         }
 457
 458         /**
 459          * Ensure a given setup stage has been done, throw an exception if it has
 460          * not.
 461          */
 462         protected function checkSetupDone( $funcName, $funcName2 = null ) {
 463                 if ( !$this->setupDone[$funcName]
 464                         && ( $funcName === null || !$this->setupDone[$funcName2] )
 465                 ) {
 466                         throw new MWException( "$funcName must be called before calling " .
 467                                 wfGetCaller() );
 468                 }
 469         }
 470
 471         /**
 472          * Determine whether a particular setup function has been run
 473          *
 474          * @param string $funcName
 475          * @return boolean
 476          */
 477         public function isSetupDone( $funcName ) {
 478                 return isset( $this->setupDone[$funcName] ) ? $this->setupDone[$funcName] : false;
 479         }
 480
 481         /**
 482          * Insert hardcoded interwiki in the lookup table.
 483          *
 484          * This function insert a set of well known interwikis that are used in
 485          * the parser tests. They can be considered has fixtures are injected in
 486          * the interwiki cache by using the 'InterwikiLoadPrefix' hook.
 487          * Since we are not interested in looking up interwikis in the database,
 488          * the hook completely replace the existing mechanism (hook returns false).
 489          *
 490          * @return closure for teardown
 491          */
 492         private function setupInterwikis() {
 493                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 494                 # for testing inter-language links
 495                 Hooks::register( 'InterwikiLoadPrefix', function ( $prefix, &$iwData ) {
 496                         static $testInterwikis = [
 497                                 'local' => [
 498                                         'iw_url' => 'http://doesnt.matter.org/$1',
 499                                         'iw_api' => '',
 500                                         'iw_wikiid' => '',
 501                                         'iw_local' => 0 ],
 502                                 'wikipedia' => [
 503                                         'iw_url' => 'http://en.wikipedia.org/wiki/$1',
 504                                         'iw_api' => '',
 505                                         'iw_wikiid' => '',
 506                                         'iw_local' => 0 ],
 507                                 'meatball' => [
 508                                         'iw_url' => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 509                                         'iw_api' => '',
 510                                         'iw_wikiid' => '',
 511                                         'iw_local' => 0 ],
 512                                 'memoryalpha' => [
 513                                         'iw_url' => 'http://www.memory-alpha.org/en/index.php/$1',
 514                                         'iw_api' => '',
 515                                         'iw_wikiid' => '',
 516                                         'iw_local' => 0 ],
 517                                 'zh' => [
 518                                         'iw_url' => 'http://zh.wikipedia.org/wiki/$1',
 519                                         'iw_api' => '',
 520                                         'iw_wikiid' => '',
 521                                         'iw_local' => 1 ],
 522                                 'es' => [
 523                                         'iw_url' => 'http://es.wikipedia.org/wiki/$1',
 524                                         'iw_api' => '',
 525                                         'iw_wikiid' => '',
 526                                         'iw_local' => 1 ],
 527                                 'fr' => [
 528                                         'iw_url' => 'http://fr.wikipedia.org/wiki/$1',
 529                                         'iw_api' => '',
 530                                         'iw_wikiid' => '',
 531                                         'iw_local' => 1 ],
 532                                 'ru' => [
 533                                         'iw_url' => 'http://ru.wikipedia.org/wiki/$1',
 534                                         'iw_api' => '',
 535                                         'iw_wikiid' => '',
 536                                         'iw_local' => 1 ],
 537                                 'mi' => [
 538                                         'iw_url' => 'http://mi.wikipedia.org/wiki/$1',
 539                                         'iw_api' => '',
 540                                         'iw_wikiid' => '',
 541                                         'iw_local' => 1 ],
 542                                 'mul' => [
 543                                         'iw_url' => 'http://wikisource.org/wiki/$1',
 544                                         'iw_api' => '',
 545                                         'iw_wikiid' => '',
 546                                         'iw_local' => 1 ],
 547                         ];
 548                         if ( array_key_exists( $prefix, $testInterwikis ) ) {
 549                                 $iwData = $testInterwikis[$prefix];
 550                         }
 551
 552                         // We only want to rely on the above fixtures
 553                         return false;
 554                 } );// hooks::register
 555
 556                 return function () {
 557                         // Tear down
 558                         Hooks::clear( 'InterwikiLoadPrefix' );
 559                 };
 560         }
 561
 562         /**
 563          * Reset the Title-related services that need resetting
 564          * for each test
 565          */
 566         private function resetTitleServices() {
 567                 $services = MediaWikiServices::getInstance();
 568                 $services->resetServiceForTesting( 'TitleFormatter' );
 569                 $services->resetServiceForTesting( 'TitleParser' );
 570                 $services->resetServiceForTesting( '_MediaWikiTitleCodec' );
 571                 $services->resetServiceForTesting( 'LinkRenderer' );
 572                 $services->resetServiceForTesting( 'LinkRendererFactory' );
 573         }
 574
 575         /**
 576          * Remove last character if it is a newline
 577          * @group utility
 578          * @param string $s
 579          * @return string
 580          */
 581         public static function chomp( $s ) {
 582                 if ( substr( $s, -1 ) === "\n" ) {
 583                         return substr( $s, 0, -1 );
 584                 } else {
 585                         return $s;
 586                 }
 587         }
 588
 589         /**
 590          * Run a series of tests listed in the given text files.
 591          * Each test consists of a brief description, wikitext input,
 592          * and the expected HTML output.
 593          *
 594          * Prints status updates on stdout and counts up the total
 595          * number and percentage of passed tests.
 596          *
 597          * Handles all setup and teardown.
 598          *
 599          * @param array $filenames Array of strings
 600          * @return bool True if passed all tests, false if any tests failed.
 601          */
 602         public function runTestsFromFiles( $filenames ) {
 603                 $ok = false;
 604
 605                 $teardownGuard = $this->staticSetup();
 606                 $teardownGuard = $this->setupDatabase( $teardownGuard );
 607                 $teardownGuard = $this->setupUploads( $teardownGuard );
 608
 609                 $this->recorder->start();
 610                 try {
 611                         $ok = true;
 612
 613                         foreach ( $filenames as $filename ) {
 614                                 $testFileInfo = TestFileReader::read( $filename, [
 615                                         'runDisabled' => $this->runDisabled,
 616                                         'runParsoid' => $this->runParsoid,
 617                                         'regex' => $this->regex ] );
 618
 619                                 // Don't start the suite if there are no enabled tests in the file
 620                                 if ( !$testFileInfo['tests'] ) {
 621                                         continue;
 622                                 }
 623
 624                                 $this->recorder->startSuite( $filename );
 625                                 $ok = $this->runTests( $testFileInfo ) && $ok;
 626                                 $this->recorder->endSuite( $filename );
 627                         }
 628
 629                         $this->recorder->report();
 630                 } catch ( DBError $e ) {
 631                         $this->recorder->warning( $e->getMessage() );
 632                 }
 633                 $this->recorder->end();
 634
 635                 ScopedCallback::consume( $teardownGuard );
 636
 637                 return $ok;
 638         }
 639
 640         /**
 641          * Determine whether the current parser has the hooks registered in it
 642          * that are required by a file read by TestFileReader.
 643          */
 644         public function meetsRequirements( $requirements ) {
 645                 foreach ( $requirements as $requirement ) {
 646                         switch ( $requirement['type'] ) {
 647                         case 'hook':
 648                                 $ok = $this->requireHook( $requirement['name'] );
 649                                 break;
 650                         case 'functionHook':
 651                                 $ok = $this->requireFunctionHook( $requirement['name'] );
 652                                 break;
 653                         case 'transparentHook':
 654                                 $ok = $this->requireTransparentHook( $requirement['name'] );
 655                                 break;
 656                         }
 657                         if ( !$ok ) {
 658                                 return false;
 659                         }
 660                 }
 661                 return true;
 662         }
 663
 664         /**
 665          * Run the tests from a single file. staticSetup() and setupDatabase()
 666          * must have been called already.
 667          *
 668          * @param array $testFileInfo Parsed file info returned by TestFileReader
 669          * @return bool True if passed all tests, false if any tests failed.
 670          */
 671         public function runTests( $testFileInfo ) {
 672                 $ok = true;
 673
 674                 $this->checkSetupDone( 'staticSetup' );
 675
 676                 // Don't add articles from the file if there are no enabled tests from the file
 677                 if ( !$testFileInfo['tests'] ) {
 678                         return true;
 679                 }
 680
 681                 // If any requirements are not met, mark all tests from the file as skipped
 682                 if ( !$this->meetsRequirements( $testFileInfo['requirements'] ) ) {
 683                         foreach ( $testFileInfo['tests'] as $test ) {
 684                                 $this->recorder->startTest( $test );
 685                                 $this->recorder->skipped( $test, 'required extension not enabled' );
 686                         }
 687                         return true;
 688                 }
 689
 690                 // Add articles
 691                 $this->addArticles( $testFileInfo['articles'] );
 692
 693                 // Run tests
 694                 foreach ( $testFileInfo['tests'] as $test ) {
 695                         $this->recorder->startTest( $test );
 696                         $result =
 697                                 $this->runTest( $test );
 698                         if ( $result !== false ) {
 699                                 $ok = $ok && $result->isSuccess();
 700                                 $this->recorder->record( $test, $result );
 701                         }
 702                 }
 703
 704                 return $ok;
 705         }
 706
 707         /**
 708          * Get a Parser object
 709          *
 710          * @param string $preprocessor
 711          * @return Parser
 712          */
 713         function getParser( $preprocessor = null ) {
 714                 global $wgParserConf;
 715
 716                 $class = $wgParserConf['class'];
 717                 $parser = new $class( [ 'preprocessorClass' => $preprocessor ] + $wgParserConf );
 718                 ParserTestParserHook::setup( $parser );
 719
 720                 return $parser;
 721         }
 722
 723         /**
 724          * Run a given wikitext input through a freshly-constructed wiki parser,
 725          * and compare the output against the expected results.
 726          * Prints status and explanatory messages to stdout.
 727          *
 728          * staticSetup() and setupWikiData() must be called before this function
 729          * is entered.
 730          *
 731          * @param array $test The test parameters:
 732          *  - test: The test name
 733          *  - desc: The subtest description
 734          *  - input: Wikitext to try rendering
 735          *  - options: Array of test options
 736          *  - config: Overrides for global variables, one per line
 737          *
 738          * @return ParserTestResult or false if skipped
 739          */
 740         public function runTest( $test ) {
 741                 wfDebug( __METHOD__.": running {$test['desc']}" );
 742                 $opts = $this->parseOptions( $test['options'] );
 743                 $teardownGuard = $this->perTestSetup( $test );
 744
 745                 $context = RequestContext::getMain();
 746                 $user = $context->getUser();
 747                 $options = ParserOptions::newFromContext( $context );
 748
 749                 if ( isset( $opts['tidy'] ) ) {
 750                         if ( !$this->tidySupport->isEnabled() ) {
 751                                 $this->recorder->skipped( $test, 'tidy extension is not installed' );
 752                                 return false;
 753                         } else {
 754                                 $options->setTidy( true );
 755                         }
 756                 }
 757
 758                 if ( isset( $opts['title'] ) ) {
 759                         $titleText = $opts['title'];
 760                 } else {
 761                         $titleText = 'Parser test';
 762                 }
 763
 764                 $local = isset( $opts['local'] );
 765                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 766                 $parser = $this->getParser( $preprocessor );
 767                 $title = Title::newFromText( $titleText );
 768
 769                 if ( isset( $opts['pst'] ) ) {
 770                         $out = $parser->preSaveTransform( $test['input'], $title, $user, $options );
 771                 } elseif ( isset( $opts['msg'] ) ) {
 772                         $out = $parser->transformMsg( $test['input'], $options, $title );
 773                 } elseif ( isset( $opts['section'] ) ) {
 774                         $section = $opts['section'];
 775                         $out = $parser->getSection( $test['input'], $section );
 776                 } elseif ( isset( $opts['replace'] ) ) {
 777                         $section = $opts['replace'][0];
 778                         $replace = $opts['replace'][1];
 779                         $out = $parser->replaceSection( $test['input'], $section, $replace );
 780                 } elseif ( isset( $opts['comment'] ) ) {
 781                         $out = Linker::formatComment( $test['input'], $title, $local );
 782                 } elseif ( isset( $opts['preload'] ) ) {
 783                         $out = $parser->getPreloadText( $test['input'], $title, $options );
 784                 } else {
 785                         $output = $parser->parse( $test['input'], $title, $options, true, true, 1337 );
 786                         $output->setTOCEnabled( !isset( $opts['notoc'] ) );
 787                         $out = $output->getText();
 788                         if ( isset( $opts['tidy'] ) ) {
 789                                 $out = preg_replace( '/\s+$/', '', $out );
 790                         }
 791
 792                         if ( isset( $opts['showtitle'] ) ) {
 793                                 if ( $output->getTitleText() ) {
 794                                         $title = $output->getTitleText();
 795                                 }
 796
 797                                 $out = "$title\n$out";
 798                         }
 799
 800                         if ( isset( $opts['showindicators'] ) ) {
 801                                 $indicators = '';
 802                                 foreach ( $output->getIndicators() as $id => $content ) {
 803                                         $indicators .= "$id=$content\n";
 804                                 }
 805                                 $out = $indicators . $out;
 806                         }
 807
 808                         if ( isset( $opts['ill'] ) ) {
 809                                 $out = implode( ' ', $output->getLanguageLinks() );
 810                         } elseif ( isset( $opts['cat'] ) ) {
 811                                 $out = '';
 812                                 foreach ( $output->getCategories() as $name => $sortkey ) {
 813                                         if ( $out !== '' ) {
 814                                                 $out .= "\n";
 815                                         }
 816                                         $out .= "cat=$name sort=$sortkey";
 817                                 }
 818                         }
 819                 }
 820
 821                 ScopedCallback::consume( $teardownGuard );
 822
 823                 $expected = $test['result'];
 824                 if ( count( $this->normalizationFunctions ) ) {
 825                         $expected = ParserTestResultNormalizer::normalize(
 826                                 $test['expected'], $this->normalizationFunctions );
 827                         $out = ParserTestResultNormalizer::normalize( $out, $this->normalizationFunctions );
 828                 }
 829
 830                 $testResult = new ParserTestResult( $test, $expected, $out );
 831                 return $testResult;
 832         }
 833
 834         /**
 835          * Use a regex to find out the value of an option
 836          * @param string $key Name of option val to retrieve
 837          * @param array $opts Options array to look in
 838          * @param mixed $default Default value returned if not found
 839          * @return mixed
 840          */
 841         private static function getOptionValue( $key, $opts, $default ) {
 842                 $key = strtolower( $key );
 843
 844                 if ( isset( $opts[$key] ) ) {
 845                         return $opts[$key];
 846                 } else {
 847                         return $default;
 848                 }
 849         }
 850
 851         /**
 852          * Given the options string, return an associative array of options.
 853          * @todo Move this to TestFileReader
 854          *
 855          * @param string $instring
 856          * @return array
 857          */
 858         private function parseOptions( $instring ) {
 859                 $opts = [];
 860                 // foo
 861                 // foo=bar
 862                 // foo="bar baz"
 863                 // foo=[[bar baz]]
 864                 // foo=bar,"baz quux"
 865                 // foo={...json...}
 866                 $defs = '(?(DEFINE)
 867                         (?<qstr>                                        # Quoted string
 868                                 "
 869                                 (?:[^\\\\"] | \\\\.)*
 870                                 "
 871                         )
 872                         (?<json>
 873                                 \{              # Open bracket
 874                                 (?:
 875                                         [^"{}] |                                # Not a quoted string or object, or
 876                                         (?&qstr) |                              # A quoted string, or
 877                                         (?&json)                                # A json object (recursively)
 878                                 )*
 879                                 \}              # Close bracket
 880                         )
 881                         (?<value>
 882                                 (?:
 883                                         (?&qstr)                        # Quoted val
 884                                 |
 885                                         \[\[
 886                                                 [^]]*                   # Link target
 887                                         \]\]
 888                                 |
 889                                         [\w-]+                          # Plain word
 890                                 |
 891                                         (?&json)                        # JSON object
 892                                 )
 893                         )
 894                 )';
 895                 $regex = '/' . $defs . '\b
 896                         (?<k>[\w-]+)                            # Key
 897                         \b
 898                         (?:\s*
 899                                 =                                               # First sub-value
 900                                 \s*
 901                                 (?<v>
 902                                         (?&value)
 903                                         (?:\s*
 904                                                 ,                               # Sub-vals 1..N
 905                                                 \s*
 906                                                 (?&value)
 907                                         )*
 908                                 )
 909                         )?
 910                         /x';
 911                 $valueregex = '/' . $defs . '(?&value)/x';
 912
 913                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 914                         foreach ( $matches as $bits ) {
 915                                 $key = strtolower( $bits['k'] );
 916                                 if ( !isset( $bits['v'] ) ) {
 917                                         $opts[$key] = true;
 918                                 } else {
 919                                         preg_match_all( $valueregex, $bits['v'], $vmatches );
 920                                         $opts[$key] = array_map( [ $this, 'cleanupOption' ], $vmatches[0] );
 921                                         if ( count( $opts[$key] ) == 1 ) {
 922                                                 $opts[$key] = $opts[$key][0];
 923                                         }
 924                                 }
 925                         }
 926                 }
 927                 return $opts;
 928         }
 929
 930         private function cleanupOption( $opt ) {
 931                 if ( substr( $opt, 0, 1 ) == '"' ) {
 932                         return stripcslashes( substr( $opt, 1, -1 ) );
 933                 }
 934
 935                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 936                         return substr( $opt, 2, -2 );
 937                 }
 938
 939                 if ( substr( $opt, 0, 1 ) == '{' ) {
 940                         return FormatJson::decode( $opt, true );
 941                 }
 942                 return $opt;
 943         }
 944
 945         /**
 946          * Do any required setup which is dependent on test options.
 947          *
 948          * @see staticSetup() for more information about setup/teardown
 949          *
 950          * @param array $test Test info supplied by TestFileReader
 951          * @param callable|null $nextTeardown
 952          * @return ScopedCallback
 953          */
 954         public function perTestSetup( $test, $nextTeardown = null ) {
 955                 $teardown = [];
 956
 957                 $this->checkSetupDone( 'setupDatabase', 'setDatabase' );
 958                 $teardown[] = $this->markSetupDone( 'perTestSetup' );
 959
 960                 $opts = $this->parseOptions( $test['options'] );
 961                 $config = $test['config'];
 962
 963                 // Find out values for some special options.
 964                 $langCode =
 965                         self::getOptionValue( 'language', $opts, 'en' );
 966                 $variant =
 967                         self::getOptionValue( 'variant', $opts, false );
 968                 $maxtoclevel =
 969                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 970                 $linkHolderBatchSize =
 971                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 972
 973                 $setup = [
 974                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
 975                         'wgLanguageCode' => $langCode,
 976                         'wgRawHtml' => self::getOptionValue( 'wgRawHtml', $opts, false ),
 977                         'wgNamespacesWithSubpages' => [ 0 => isset( $opts['subpage'] ) ],
 978                         'wgMaxTocLevel' => $maxtoclevel,
 979                         'wgAllowExternalImages' => self::getOptionValue( 'wgAllowExternalImages', $opts, true ),
 980                         'wgThumbLimits' => [ self::getOptionValue( 'thumbsize', $opts, 180 ) ],
 981                         'wgDefaultLanguageVariant' => $variant,
 982                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 983                         // Set as a JSON object like:
 984                         // wgEnableMagicLinks={"ISBN":false, "PMID":false, "RFC":false}
 985                         'wgEnableMagicLinks' => self::getOptionValue( 'wgEnableMagicLinks', $opts, [] )
 986                                 + [ 'ISBN' => true, 'PMID' => true, 'RFC' => true ],
 987                 ];
 988
 989                 if ( $config ) {
 990                         $configLines = explode( "\n", $config );
 991
 992                         foreach ( $configLines as $line ) {
 993                                 list( $var, $value )  = explode( '=', $line, 2 );
 994                                 $setup[$var] = eval( "return $value;" );
 995                         }
 996                 }
 997
 998                 /** @since 1.20 */
 999                 Hooks::run( 'ParserTestGlobals', [ &$setup ] );
1000
1001                 // Create tidy driver
1002                 if ( isset( $opts['tidy'] ) ) {
1003                         // Cache a driver instance
1004                         if ( $this->tidyDriver === null ) {
1005                                 $this->tidyDriver = MWTidy::factory( $this->tidySupport->getConfig() );
1006                         }
1007                         $tidy = $this->tidyDriver;
1008                 } else {
1009                         $tidy = false;
1010                 }
1011                 MWTidy::setInstance( $tidy );
1012                 $teardown[] = function () {
1013                         MWTidy::destroySingleton();
1014                 };
1015
1016                 // Set content language. This invalidates the magic word cache and title services
1017                 $lang = Language::factory( $langCode );
1018                 $setup['wgContLang'] = $lang;
1019                 $reset = function () {
1020                         MagicWord::clearCache();
1021                         $this->resetTitleServices();
1022                 };
1023                 $setup[] = $reset;
1024                 $teardown[] = $reset;
1025
1026                 // Make a user object with the same language
1027                 $user = new User;
1028                 $user->setOption( 'language', $langCode );
1029                 $setup['wgLang'] = $lang;
1030
1031                 // We (re)set $wgThumbLimits to a single-element array above.
1032                 $user->setOption( 'thumbsize', 0 );
1033
1034                 $setup['wgUser'] = $user;
1035
1036                 // And put both user and language into the context
1037                 $context = RequestContext::getMain();
1038                 $context->setUser( $user );
1039                 $context->setLanguage( $lang );
1040                 $teardown[] = function () use ( $context ) {
1041                         // Reset context to the restored globals
1042                         $context->setUser( $GLOBALS['wgUser'] );
1043                         $context->setLanguage( $GLOBALS['wgContLang'] );
1044                 };
1045
1046                 $teardown[] = $this->executeSetupSnippets( $setup );
1047
1048                 return $this->createTeardownObject( $teardown, $nextTeardown );
1049         }
1050
1051         /**
1052          * List of temporary tables to create, without prefix.
1053          * Some of these probably aren't necessary.
1054          * @return array
1055          */
1056         private function listTables() {
1057                 $tables = [ 'user', 'user_properties', 'user_former_groups', 'page', 'page_restrictions',
1058                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
1059                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
1060                         'site_stats', 'ipblocks', 'image', 'oldimage',
1061                         'recentchanges', 'watchlist', 'interwiki', 'logging', 'log_search',
1062                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
1063                         'archive', 'user_groups', 'page_props', 'category'
1064                 ];
1065
1066                 if ( in_array( $this->db->getType(), [ 'mysql', 'sqlite', 'oracle' ] ) ) {
1067                         array_push( $tables, 'searchindex' );
1068                 }
1069
1070                 // Allow extensions to add to the list of tables to duplicate;
1071                 // may be necessary if they hook into page save or other code
1072                 // which will require them while running tests.
1073                 Hooks::run( 'ParserTestTables', [ &$tables ] );
1074
1075                 return $tables;
1076         }
1077
1078         public function setDatabase( IDatabase $db ) {
1079                 $this->db = $db;
1080                 $this->setupDone['setDatabase'] = true;
1081         }
1082
1083         /**
1084          * Set up temporary DB tables.
1085          *
1086          * For best performance, call this once only for all tests. However, it can
1087          * be called at the start of each test if more isolation is desired.
1088          *
1089          * @todo: This is basically an unrefactored copy of
1090          * MediaWikiTestCase::setupAllTestDBs. They should be factored out somehow.
1091          *
1092          * Do not call this function from a MediaWikiTestCase subclass, since
1093          * MediaWikiTestCase does its own DB setup. Instead use setDatabase().
1094          *
1095          * @see staticSetup() for more information about setup/teardown
1096          *
1097          * @param ScopedCallback|null $nextTeardown The next teardown object
1098          * @return ScopedCallback The teardown object
1099          */
1100         public function setupDatabase( $nextTeardown = null ) {
1101                 global $wgDBprefix;
1102
1103                 $this->db = wfGetDB( DB_MASTER );
1104                 $dbType = $this->db->getType();
1105
1106                 if ( $dbType == 'oracle' ) {
1107                         $suspiciousPrefixes = [ 'pt_', MediaWikiTestCase::ORA_DB_PREFIX ];
1108                 } else {
1109                         $suspiciousPrefixes = [ 'parsertest_', MediaWikiTestCase::DB_PREFIX ];
1110                 }
1111                 if ( in_array( $wgDBprefix, $suspiciousPrefixes ) ) {
1112                         throw new MWException( "\$wgDBprefix=$wgDBprefix suggests DB setup is already done" );
1113                 }
1114
1115                 $teardown = [];
1116
1117                 $teardown[] = $this->markSetupDone( 'setupDatabase' );
1118
1119                 # CREATE TEMPORARY TABLE breaks if there is more than one server
1120                 if ( wfGetLB()->getServerCount() != 1 ) {
1121                         $this->useTemporaryTables = false;
1122                 }
1123
1124                 $temporary = $this->useTemporaryTables || $dbType == 'postgres';
1125                 $prefix = $dbType != 'oracle' ? 'parsertest_' : 'pt_';
1126
1127                 $this->dbClone = new CloneDatabase( $this->db, $this->listTables(), $prefix );
1128                 $this->dbClone->useTemporaryTables( $temporary );
1129                 $this->dbClone->cloneTableStructure();
1130
1131                 if ( $dbType == 'oracle' ) {
1132                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1133                         # Insert 0 user to prevent FK violations
1134
1135                         # Anonymous user
1136                         $this->db->insert( 'user', [
1137                                 'user_id' => 0,
1138                                 'user_name' => 'Anonymous' ] );
1139                 }
1140
1141                 $teardown[] = function () {
1142                         $this->teardownDatabase();
1143                 };
1144
1145                 // Wipe some DB query result caches on setup and teardown
1146                 $reset = function () {
1147                         LinkCache::singleton()->clear();
1148
1149                         // Clear the message cache
1150                         MessageCache::singleton()->clear();
1151                 };
1152                 $reset();
1153                 $teardown[] = $reset;
1154                 return $this->createTeardownObject( $teardown, $nextTeardown );
1155         }
1156
1157         /**
1158          * Add data about uploads to the new test DB, and set up the upload
1159          * directory. This should be called after either setDatabase() or
1160          * setupDatabase().
1161          *
1162          * @param ScopedCallback|null $nextTeardown The next teardown object
1163          * @return ScopedCallback The teardown object
1164          */
1165         public function setupUploads( $nextTeardown = null ) {
1166                 $teardown = [];
1167
1168                 $this->checkSetupDone( 'setupDatabase', 'setDatabase' );
1169                 $teardown[] = $this->markSetupDone( 'setupUploads' );
1170
1171                 // Create the files in the upload directory (or pretend to create them
1172                 // in a MockFileBackend). Append teardown callback.
1173                 $teardown[] = $this->setupUploadBackend();
1174
1175                 // Create a user
1176                 $user = User::createNew( 'WikiSysop' );
1177
1178                 // Register the uploads in the database
1179
1180                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
1181                 # note that the size/width/height/bits/etc of the file
1182                 # are actually set by inspecting the file itself; the arguments
1183                 # to recordUpload2 have no effect.  That said, we try to make things
1184                 # match up so it is less confusing to readers of the code & tests.
1185                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', [
1186                         'size' => 7881,
1187                         'width' => 1941,
1188                         'height' => 220,
1189                         'bits' => 8,
1190                         'media_type' => MEDIATYPE_BITMAP,
1191                         'mime' => 'image/jpeg',
1192                         'metadata' => serialize( [] ),
1193                         'sha1' => Wikimedia\base_convert( '1', 16, 36, 31 ),
1194                         'fileExists' => true
1195                 ], $this->db->timestamp( '20010115123500' ), $user );
1196
1197                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Thumb.png' ) );
1198                 # again, note that size/width/height below are ignored; see above.
1199                 $image->recordUpload2( '', 'Upload of some lame thumbnail', 'Some lame thumbnail', [
1200                         'size' => 22589,
1201                         'width' => 135,
1202                         'height' => 135,
1203                         'bits' => 8,
1204                         'media_type' => MEDIATYPE_BITMAP,
1205                         'mime' => 'image/png',
1206                         'metadata' => serialize( [] ),
1207                         'sha1' => Wikimedia\base_convert( '2', 16, 36, 31 ),
1208                         'fileExists' => true
1209                 ], $this->db->timestamp( '20130225203040' ), $user );
1210
1211                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.svg' ) );
1212                 $image->recordUpload2( '', 'Upload of some lame SVG', 'Some lame SVG', [
1213                                 'size'        => 12345,
1214                                 'width'       => 240,
1215                                 'height'      => 180,
1216                                 'bits'        => 0,
1217                                 'media_type'  => MEDIATYPE_DRAWING,
1218                                 'mime'        => 'image/svg+xml',
1219                                 'metadata'    => serialize( [] ),
1220                                 'sha1'        => Wikimedia\base_convert( '', 16, 36, 31 ),
1221                                 'fileExists'  => true
1222                 ], $this->db->timestamp( '20010115123500' ), $user );
1223
1224                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
1225                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
1226                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', [
1227                         'size' => 12345,
1228                         'width' => 320,
1229                         'height' => 240,
1230                         'bits' => 24,
1231                         'media_type' => MEDIATYPE_BITMAP,
1232                         'mime' => 'image/jpeg',
1233                         'metadata' => serialize( [] ),
1234                         'sha1' => Wikimedia\base_convert( '3', 16, 36, 31 ),
1235                         'fileExists' => true
1236                 ], $this->db->timestamp( '20010115123500' ), $user );
1237
1238                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Video.ogv' ) );
1239                 $image->recordUpload2( '', 'A pretty movie', 'Will it play', [
1240                         'size' => 12345,
1241                         'width' => 320,
1242                         'height' => 240,
1243                         'bits' => 0,
1244                         'media_type' => MEDIATYPE_VIDEO,
1245                         'mime' => 'application/ogg',
1246                         'metadata' => serialize( [] ),
1247                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1248                         'fileExists' => true
1249                 ], $this->db->timestamp( '20010115123500' ), $user );
1250
1251                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Audio.oga' ) );
1252                 $image->recordUpload2( '', 'An awesome hitsong', 'Will it play', [
1253                         'size' => 12345,
1254                         'width' => 0,
1255                         'height' => 0,
1256                         'bits' => 0,
1257                         'media_type' => MEDIATYPE_AUDIO,
1258                         'mime' => 'application/ogg',
1259                         'metadata' => serialize( [] ),
1260                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1261                         'fileExists' => true
1262                 ], $this->db->timestamp( '20010115123500' ), $user );
1263
1264                 # A DjVu file
1265                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'LoremIpsum.djvu' ) );
1266                 $image->recordUpload2( '', 'Upload a DjVu', 'A DjVu', [
1267                         'size' => 3249,
1268                         'width' => 2480,
1269                         'height' => 3508,
1270                         'bits' => 0,
1271                         'media_type' => MEDIATYPE_BITMAP,
1272                         'mime' => 'image/vnd.djvu',
1273                         'metadata' => '<?xml version="1.0" ?>
1274 <!DOCTYPE DjVuXML PUBLIC "-//W3C//DTD DjVuXML 1.1//EN" "pubtext/DjVuXML-s.dtd">
1275 <DjVuXML>
1276 <HEAD></HEAD>
1277 <BODY><OBJECT height="3508" width="2480">
1278 <PARAM name="DPI" value="300" />
1279 <PARAM name="GAMMA" value="2.2" />
1280 </OBJECT>
1281 <OBJECT height="3508" width="2480">
1282 <PARAM name="DPI" value="300" />
1283 <PARAM name="GAMMA" value="2.2" />
1284 </OBJECT>
1285 <OBJECT height="3508" width="2480">
1286 <PARAM name="DPI" value="300" />
1287 <PARAM name="GAMMA" value="2.2" />
1288 </OBJECT>
1289 <OBJECT height="3508" width="2480">
1290 <PARAM name="DPI" value="300" />
1291 <PARAM name="GAMMA" value="2.2" />
1292 </OBJECT>
1293 <OBJECT height="3508" width="2480">
1294 <PARAM name="DPI" value="300" />
1295 <PARAM name="GAMMA" value="2.2" />
1296 </OBJECT>
1297 </BODY>
1298 </DjVuXML>',
1299                         'sha1' => Wikimedia\base_convert( '', 16, 36, 31 ),
1300                         'fileExists' => true
1301                 ], $this->db->timestamp( '20010115123600' ), $user );
1302
1303                 return $this->createTeardownObject( $teardown, $nextTeardown );
1304         }
1305
1306         /**
1307          * Helper for database teardown, called from the teardown closure. Destroy
1308          * the database clone and fix up some things that CloneDatabase doesn't fix.
1309          *
1310          * @todo Move most things here to CloneDatabase
1311          */
1312         private function teardownDatabase() {
1313                 $this->checkSetupDone( 'setupDatabase' );
1314
1315                 $this->dbClone->destroy();
1316                 $this->databaseSetupDone = false;
1317
1318                 if ( $this->useTemporaryTables ) {
1319                         if ( $this->db->getType() == 'sqlite' ) {
1320                                 # Under SQLite the searchindex table is virtual and need
1321                                 # to be explicitly destroyed. See bug 29912
1322                                 # See also MediaWikiTestCase::destroyDB()
1323                                 wfDebug( __METHOD__ . " explicitly destroying sqlite virtual table parsertest_searchindex\n" );
1324                                 $this->db->query( "DROP TABLE `parsertest_searchindex`" );
1325                         }
1326                         # Don't need to do anything
1327                         return;
1328                 }
1329
1330                 $tables = $this->listTables();
1331
1332                 foreach ( $tables as $table ) {
1333                         if ( $this->db->getType() == 'oracle' ) {
1334                                 $this->db->query( "DROP TABLE pt_$table DROP CONSTRAINTS" );
1335                         } else {
1336                                 $this->db->query( "DROP TABLE `parsertest_$table`" );
1337                         }
1338                 }
1339
1340                 if ( $this->db->getType() == 'oracle' ) {
1341                         $this->db->query( 'BEGIN FILL_WIKI_INFO; END;' );
1342                 }
1343         }
1344
1345         /**
1346          * Upload test files to the backend created by createRepoGroup().
1347          *
1348          * @return callable The teardown callback
1349          */
1350         private function setupUploadBackend() {
1351                 global $IP;
1352
1353                 $repo = RepoGroup::singleton()->getLocalRepo();
1354                 $base = $repo->getZonePath( 'public' );
1355                 $backend = $repo->getBackend();
1356                 $backend->prepare( [ 'dir' => "$base/3/3a" ] );
1357                 $backend->store( [
1358                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg",
1359                         'dst' => "$base/3/3a/Foobar.jpg"
1360                 ] );
1361                 $backend->prepare( [ 'dir' => "$base/e/ea" ] );
1362                 $backend->store( [
1363                         'src' => "$IP/tests/phpunit/data/parser/wiki.png",
1364                         'dst' => "$base/e/ea/Thumb.png"
1365                 ] );
1366                 $backend->prepare( [ 'dir' => "$base/0/09" ] );
1367                 $backend->store( [
1368                         'src' => "$IP/tests/phpunit/data/parser/headbg.jpg",
1369                         'dst' => "$base/0/09/Bad.jpg"
1370                 ] );
1371                 $backend->prepare( [ 'dir' => "$base/5/5f" ] );
1372                 $backend->store( [
1373                         'src' => "$IP/tests/phpunit/data/parser/LoremIpsum.djvu",
1374                         'dst' => "$base/5/5f/LoremIpsum.djvu"
1375                 ] );
1376
1377                 // No helpful SVG file to copy, so make one ourselves
1378                 $data = '<?xml version="1.0" encoding="utf-8"?>' .
1379                         '<svg xmlns="http://www.w3.org/2000/svg"' .
1380                         ' version="1.1" width="240" height="180"/>';
1381
1382                 $backend->prepare( [ 'dir' => "$base/f/ff" ] );
1383                 $backend->quickCreate( [
1384                         'content' => $data, 'dst' => "$base/f/ff/Foobar.svg"
1385                 ] );
1386
1387                 return function () use ( $backend ) {
1388                         if ( $backend instanceof MockFileBackend ) {
1389                                 // In memory backend, so dont bother cleaning them up.
1390                                 return;
1391                         }
1392                         $this->teardownUploadBackend();
1393                 };
1394         }
1395
1396         /**
1397          * Remove the dummy uploads directory
1398          */
1399         private function teardownUploadBackend() {
1400                 if ( $this->keepUploads ) {
1401                         return;
1402                 }
1403
1404                 $repo = RepoGroup::singleton()->getLocalRepo();
1405                 $public = $repo->getZonePath( 'public' );
1406
1407                 $this->deleteFiles(
1408                         [
1409                                 "$public/3/3a/Foobar.jpg",
1410                                 "$public/e/ea/Thumb.png",
1411                                 "$public/0/09/Bad.jpg",
1412                                 "$public/5/5f/LoremIpsum.djvu",
1413                                 "$public/f/ff/Foobar.svg",
1414                                 "$public/0/00/Video.ogv",
1415                                 "$public/4/41/Audio.oga",
1416                         ]
1417                 );
1418         }
1419
1420         /**
1421          * Delete the specified files and their parent directories
1422          * @param array $files File backend URIs mwstore://...
1423          */
1424         private function deleteFiles( $files ) {
1425                 // Delete the files
1426                 $backend = RepoGroup::singleton()->getLocalRepo()->getBackend();
1427                 foreach ( $files as $file ) {
1428                         $backend->delete( [ 'src' => $file ], [ 'force' => 1 ] );
1429                 }
1430
1431                 // Delete the parent directories
1432                 foreach ( $files as $file ) {
1433                         $tmp = FileBackend::parentStoragePath( $file );
1434                         while ( $tmp ) {
1435                                 if ( !$backend->clean( [ 'dir' => $tmp ] )->isOK() ) {
1436                                         break;
1437                                 }
1438                                 $tmp = FileBackend::parentStoragePath( $tmp );
1439                         }
1440                 }
1441         }
1442
1443         /**
1444          * Add articles to the test DB.
1445          *
1446          * @param $articles Article info array from TestFileReader
1447          */
1448         public function addArticles( $articles ) {
1449                 global $wgContLang;
1450                 $setup = [];
1451                 $teardown = [];
1452
1453                 // Be sure ParserTestRunner::addArticle has correct language set,
1454                 // so that system messages get into the right language cache
1455                 if ( $wgContLang->getCode() !== 'en' ) {
1456                         $setup['wgLanguageCode'] = 'en';
1457                         $setup['wgContLang'] = Language::factory( 'en' );
1458                 }
1459
1460                 // Add special namespaces, in case that hasn't been done by staticSetup() yet
1461                 $this->appendNamespaceSetup( $setup, $teardown );
1462
1463                 // wgCapitalLinks obviously needs initialisation
1464                 $setup['wgCapitalLinks'] = true;
1465
1466                 $teardown[] = $this->executeSetupSnippets( $setup );
1467
1468                 foreach ( $articles as $info ) {
1469                         $this->addArticle( $info['name'], $info['text'], $info['file'], $info['line'] );
1470                 }
1471
1472                 // Wipe WANObjectCache process cache, which is invalidated by article insertion
1473                 // due to T144706
1474                 ObjectCache::getMainWANInstance()->clearProcessCache();
1475
1476                 $this->executeSetupSnippets( $teardown );
1477         }
1478
1479         /**
1480          * Insert a temporary test article
1481          * @param string $name The title, including any prefix
1482          * @param string $text The article text
1483          * @param string $file The input file name
1484          * @param int|string $line The input line number, for reporting errors
1485          * @throws Exception
1486          * @throws MWException
1487          */
1488         private function addArticle( $name, $text, $file, $line ) {
1489                 $text = self::chomp( $text );
1490                 $name = self::chomp( $name );
1491
1492                 $title = Title::newFromText( $name );
1493                 wfDebug( __METHOD__ . ": adding $name" );
1494
1495                 if ( is_null( $title ) ) {
1496                         throw new MWException( "invalid title '$name' at $file:$line\n" );
1497                 }
1498
1499                 $page = WikiPage::factory( $title );
1500                 $page->loadPageData( 'fromdbmaster' );
1501
1502                 if ( $page->exists() ) {
1503                         throw new MWException( "duplicate article '$name' at $file:$line\n" );
1504                 }
1505
1506                 // Use mock parser, to make debugging of actual parser tests simpler.
1507                 // But initialise the MessageCache clone first, don't let MessageCache
1508                 // get a reference to the mock object.
1509                 MessageCache::singleton()->getParser();
1510                 $restore = $this->executeSetupSnippets( [ 'wgParser' => new ParserTestMockParser ] );
1511                 $status = $page->doEditContent( ContentHandler::makeContent( $text, $title ), '', EDIT_NEW );
1512                 $restore();
1513
1514                 if ( !$status->isOK() ) {
1515                         throw new MWException( $status->getWikiText( false, false, 'en' ) );
1516                 }
1517
1518                 // The RepoGroup cache is invalidated by the creation of file redirects
1519                 if ( $title->inNamespace( NS_FILE ) ) {
1520                         RepoGroup::singleton()->clearCache( $title );
1521                 }
1522         }
1523
1524         /**
1525          * Check if a hook is installed
1526          *
1527          * @param string $name
1528          * @return bool True if tag hook is present
1529          */
1530         public function requireHook( $name ) {
1531                 global $wgParser;
1532
1533                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1534                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1535                         return true;
1536                 } else {
1537                         $this->recorder->warning( "   This test suite requires the '$name' hook " .
1538                                 "extension, skipping." );
1539                         return false;
1540                 }
1541         }
1542
1543         /**
1544          * Check if a function hook is installed
1545          *
1546          * @param string $name
1547          * @return bool True if function hook is present
1548          */
1549         public function requireFunctionHook( $name ) {
1550                 global $wgParser;
1551
1552                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1553
1554                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1555                         return true;
1556                 } else {
1557                         $this->recorder->warning( "   This test suite requires the '$name' function " .
1558                                 "hook extension, skipping." );
1559                         return false;
1560                 }
1561         }
1562
1563         /**
1564          * Check if a transparent tag hook is installed
1565          *
1566          * @param string $name
1567          * @return bool True if function hook is present
1568          */
1569         public function requireTransparentHook( $name ) {
1570                 global $wgParser;
1571
1572                 $wgParser->firstCallInit(); // make sure hooks are loaded.
1573
1574                 if ( isset( $wgParser->mTransparentTagHooks[$name] ) ) {
1575                         return true;
1576                 } else {
1577                         $this->recorder->warning( "   This test suite requires the '$name' transparent " .
1578                                 "hook extension, skipping.\n" );
1579                         return false;
1580                 }
1581         }
1582
1583         /**
1584          * The ParserGetVariableValueTs hook, used to make sure time-related parser
1585          * functions give a persistent value.
1586          */
1587         static function getFakeTimestamp( &$parser, &$ts ) {
1588                 $ts = 123; // parsed as '1970-01-01T00:02:03Z'
1589                 return true;
1590         }
1591 }