Followup r74034, missed one GAID_FOR_UPDATE
[mediawiki.git] / maintenance / tests / parser / parserTest.inc
blobfaa4c72fe722a0b19b52ab2209c14dd145ddd50a
1 <?php
2 # Copyright (C) 2004, 2010 Brion Vibber <brion@pobox.com>
3 # http://www.mediawiki.org/
5 # This program is free software; you can redistribute it and/or modify
6 # it under the terms of the GNU General Public License as published by
7 # the Free Software Foundation; either version 2 of the License, or
8 # (at your option) any later version.
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License along
16 # with this program; if not, write to the Free Software Foundation, Inc.,
17 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 # http://www.gnu.org/copyleft/gpl.html
20 /**
21  * @todo Make this more independent of the configuration (and if possible the database)
22  * @todo document
23  * @file
24  * @ingroup Maintenance
25  */
27 /**
28  * @ingroup Maintenance
29  */
30 class ParserTest {
31         /**
32          * boolean $color whereas output should be colorized
33          */
34         private $color;
36         /**
37          * boolean $showOutput Show test output
38          */
39         private $showOutput;
41         /**
42          * boolean $useTemporaryTables Use temporary tables for the temporary database
43          */
44         private $useTemporaryTables = true;
46         /**
47          * boolean $databaseSetupDone True if the database has been set up
48          */
49         private $databaseSetupDone = false;
51         /**
52          * string $oldTablePrefix Original table prefix
53          */
54         private $oldTablePrefix;
56         private $maxFuzzTestLength = 300;
57         private $fuzzSeed = 0;
58         private $memoryLimit = 50;
60         /**
61          * Sets terminal colorization and diff/quick modes depending on OS and
62          * command-line options (--color and --quick).
63          */
64         public function ParserTest( $options = array() ) {
65                 # Only colorize output if stdout is a terminal.
66                 $this->color = !wfIsWindows() && posix_isatty( 1 );
68                 if ( isset( $options['color'] ) ) {
69                         switch( $options['color'] ) {
70                         case 'no':
71                                 $this->color = false;
72                                 break;
73                         case 'yes':
74                         default:
75                                 $this->color = true;
76                                 break;
77                         }
78                 }
80                 $this->term = $this->color
81                         ? new AnsiTermColorer()
82                         : new DummyTermColorer();
84                 $this->showDiffs = !isset( $options['quick'] );
85                 $this->showProgress = !isset( $options['quiet'] );
86                 $this->showFailure = !(
87                         isset( $options['quiet'] )
88                         && ( isset( $options['record'] )
89                                 || isset( $options['compare'] ) ) ); // redundant output
91                 $this->showOutput = isset( $options['show-output'] );
94                 if ( isset( $options['regex'] ) ) {
95                         if ( isset( $options['record'] ) ) {
96                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
97                                 unset( $options['record'] );
98                         }
99                         $this->regex = $options['regex'];
100                 } else {
101                         # Matches anything
102                         $this->regex = '';
103                 }
105                 $this->setupRecorder( $options );
106                 $this->keepUploads = isset( $options['keep-uploads'] );
108                 if ( isset( $options['seed'] ) ) {
109                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
110                 }
112                 $this->runDisabled = isset( $options['run-disabled'] );
114                 $this->hooks = array();
115                 $this->functionHooks = array();
116         }
118         public function setupRecorder ( $options ) {
119                 if ( isset( $options['record'] ) ) {
120                         $this->recorder = new DbTestRecorder( $this );
121                         $this->recorder->version = isset( $options['setversion'] ) ?
122                                         $options['setversion'] : SpecialVersion::getVersion();
123                 } elseif ( isset( $options['compare'] ) ) {
124                         $this->recorder = new DbTestPreviewer( $this );
125                 } elseif ( isset( $options['upload'] ) ) {
126                         $this->recorder = new RemoteTestRecorder( $this );
127                 } else {
128                         $this->recorder = new TestRecorder( $this );
129                 }
130         }
132         /**
133          * Remove last character if it is a newline
134          */
135         public function chomp( $s ) {
136                 if ( substr( $s, -1 ) === "\n" ) {
137                         return substr( $s, 0, -1 );
138                 }
139                 else {
140                         return $s;
141                 }
142         }
144         /**
145          * Run a fuzz test series
146          * Draw input from a set of test files
147          */
148         function fuzzTest( $filenames ) {
149                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
150                 $dict = $this->getFuzzInput( $filenames );
151                 $dictSize = strlen( $dict );
152                 $logMaxLength = log( $this->maxFuzzTestLength );
153                 $this->setupDatabase();
154                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
156                 $numTotal = 0;
157                 $numSuccess = 0;
158                 $user = new User;
159                 $opts = ParserOptions::newFromUser( $user );
160                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
162                 while ( true ) {
163                         // Generate test input
164                         mt_srand( ++$this->fuzzSeed );
165                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
166                         $input = '';
168                         while ( strlen( $input ) < $totalLength ) {
169                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
170                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
171                                 $offset = mt_rand( 0, $dictSize - $hairLength );
172                                 $input .= substr( $dict, $offset, $hairLength );
173                         }
175                         $this->setupGlobals();
176                         $parser = $this->getParser();
178                         // Run the test
179                         try {
180                                 $parser->parse( $input, $title, $opts );
181                                 $fail = false;
182                         } catch ( Exception $exception ) {
183                                 $fail = true;
184                         }
186                         if ( $fail ) {
187                                 echo "Test failed with seed {$this->fuzzSeed}\n";
188                                 echo "Input:\n";
189                                 var_dump( $input );
190                                 echo "\n\n";
191                                 echo "$exception\n";
192                         } else {
193                                 $numSuccess++;
194                         }
196                         $numTotal++;
197                         $this->teardownGlobals();
198                         $parser->__destruct();
200                         if ( $numTotal % 100 == 0 ) {
201                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
202                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
203                                 if ( $usage > 90 ) {
204                                         echo "Out of memory:\n";
205                                         $memStats = $this->getMemoryBreakdown();
207                                         foreach ( $memStats as $name => $usage ) {
208                                                 echo "$name: $usage\n";
209                                         }
210                                         $this->abort();
211                                 }
212                         }
213                 }
214         }
216         /**
217          * Get an input dictionary from a set of parser test files
218          */
219         function getFuzzInput( $filenames ) {
220                 $dict = '';
222                 foreach ( $filenames as $filename ) {
223                         $contents = file_get_contents( $filename );
224                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
226                         foreach ( $matches[1] as $match ) {
227                                 $dict .= $match . "\n";
228                         }
229                 }
231                 return $dict;
232         }
234         /**
235          * Get a memory usage breakdown
236          */
237         function getMemoryBreakdown() {
238                 $memStats = array();
240                 foreach ( $GLOBALS as $name => $value ) {
241                         $memStats['$' . $name] = strlen( serialize( $value ) );
242                 }
244                 $classes = get_declared_classes();
246                 foreach ( $classes as $class ) {
247                         $rc = new ReflectionClass( $class );
248                         $props = $rc->getStaticProperties();
249                         $memStats[$class] = strlen( serialize( $props ) );
250                         $methods = $rc->getMethods();
252                         foreach ( $methods as $method ) {
253                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
254                         }
255                 }
257                 $functions = get_defined_functions();
259                 foreach ( $functions['user'] as $function ) {
260                         $rf = new ReflectionFunction( $function );
261                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
262                 }
264                 asort( $memStats );
266                 return $memStats;
267         }
269         function abort() {
270                 $this->abort();
271         }
273         /**
274          * Run a series of tests listed in the given text files.
275          * Each test consists of a brief description, wikitext input,
276          * and the expected HTML output.
277          *
278          * Prints status updates on stdout and counts up the total
279          * number and percentage of passed tests.
280          *
281          * @param $filenames Array of strings
282          * @return Boolean: true if passed all tests, false if any tests failed.
283          */
284         public function runTestsFromFiles( $filenames ) {
285                 $GLOBALS['wgContLang'] = Language::factory( 'en' );
286                 $this->recorder->start();
287                 $this->setupDatabase();
288                 $ok = true;
290                 foreach ( $filenames as $filename ) {
291                         $tests = new TestFileIterator( $filename, $this );
292                         $ok = $this->runTests( $tests ) && $ok;
293                 }
295                 $this->teardownDatabase();
296                 $this->recorder->report();
297                 $this->recorder->end();
299                 return $ok;
300         }
302         function runTests( $tests ) {
303                 $ok = true;
305                 foreach ( $tests as $i => $t ) {
306                         $result =
307                                 $this->runTest( $t['test'], $t['input'], $t['result'], $t['options'], $t['config'] );
308                         $ok = $ok && $result;
309                         $this->recorder->record( $t['test'], $result );
310                 }
312                 if ( $this->showProgress ) {
313                         print "\n";
314                 }
316                 return $ok;
317         }
319         /**
320          * Get a Parser object
321          */
322         function getParser( $preprocessor = null ) {
323                 global $wgParserConf;
325                 $class = $wgParserConf['class'];
326                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
328                 foreach ( $this->hooks as $tag => $callback ) {
329                         $parser->setHook( $tag, $callback );
330                 }
332                 foreach ( $this->functionHooks as $tag => $bits ) {
333                         list( $callback, $flags ) = $bits;
334                         $parser->setFunctionHook( $tag, $callback, $flags );
335                 }
337                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
339                 return $parser;
340         }
342         /**
343          * Run a given wikitext input through a freshly-constructed wiki parser,
344          * and compare the output against the expected results.
345          * Prints status and explanatory messages to stdout.
346          *
347          * @param $desc String: test's description
348          * @param $input String: wikitext to try rendering
349          * @param $result String: result to output
350          * @param $opts Array: test's options
351          * @param $config String: overrides for global variables, one per line
352          * @return Boolean
353          */
354         public function runTest( $desc, $input, $result, $opts, $config ) {
355                 if ( $this->showProgress ) {
356                         $this->showTesting( $desc );
357                 }
359                 $opts = $this->parseOptions( $opts );
360                 $this->setupGlobals( $opts, $config );
362                 $user = new User();
363                 $options = ParserOptions::newFromUser( $user );
365                 if ( isset( $opts['title'] ) ) {
366                         $titleText = $opts['title'];
367                 }
368                 else {
369                         $titleText = 'Parser test';
370                 }
372                 $noxml = isset( $opts['noxml'] );
373                 $local = isset( $opts['local'] );
374                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
375                 $parser = $this->getParser( $preprocessor );
376                 $title = Title::newFromText( $titleText );
378                 if ( isset( $opts['pst'] ) ) {
379                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
380                 } elseif ( isset( $opts['msg'] ) ) {
381                         $out = $parser->transformMsg( $input, $options );
382                 } elseif ( isset( $opts['section'] ) ) {
383                         $section = $opts['section'];
384                         $out = $parser->getSection( $input, $section );
385                 } elseif ( isset( $opts['replace'] ) ) {
386                         $section = $opts['replace'][0];
387                         $replace = $opts['replace'][1];
388                         $out = $parser->replaceSection( $input, $section, $replace );
389                 } elseif ( isset( $opts['comment'] ) ) {
390                         $linker = $user->getSkin();
391                         $out = $linker->formatComment( $input, $title, $local );
392                 } elseif ( isset( $opts['preload'] ) ) {
393                         $out = $parser->getpreloadText( $input, $title, $options );
394                 } else {
395                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
396                         $out = $output->getText();
398                         if ( isset( $opts['showtitle'] ) ) {
399                                 if ( $output->getTitleText() ) {
400                                         $title = $output->getTitleText();
401                                 }
403                                 $out = "$title\n$out";
404                         }
406                         if ( isset( $opts['ill'] ) ) {
407                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
408                         } elseif ( isset( $opts['cat'] ) ) {
409                                 global $wgOut;
411                                 $wgOut->addCategoryLinks( $output->getCategories() );
412                                 $cats = $wgOut->getCategoryLinks();
414                                 if ( isset( $cats['normal'] ) ) {
415                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
416                                 } else {
417                                         $out = '';
418                                 }
419                         }
421                         $result = $this->tidy( $result );
422                 }
425                 $this->teardownGlobals();
427                 if ( $result === $out && ( $noxml === true || $this->wellFormed( $out ) ) ) {
428                         return $this->showSuccess( $desc );
429                 } else {
430                         return $this->showFailure( $desc, $result, $out );
431                 }
432         }
434         /**
435          * Use a regex to find out the value of an option
436          * @param $key String: name of option val to retrieve
437          * @param $opts Options array to look in
438          * @param $default Mixed: default value returned if not found
439          */
440         private static function getOptionValue( $key, $opts, $default ) {
441                 $key = strtolower( $key );
443                 if ( isset( $opts[$key] ) ) {
444                         return $opts[$key];
445                 } else {
446                         return $default;
447                 }
448         }
450         private function parseOptions( $instring ) {
451                 $opts = array();
452                 $lines = explode( "\n", $instring );
453                 // foo
454                 // foo=bar
455                 // foo="bar baz"
456                 // foo=[[bar baz]]
457                 // foo=bar,"baz quux"
458                 $regex = '/\b
459                         ([\w-]+)                                                # Key
460                         \b
461                         (?:\s*
462                                 =                                               # First sub-value
463                                 \s*
464                                 (
465                                         "
466                                                 [^"]*                   # Quoted val
467                                         "
468                                 |
469                                         \[\[
470                                                 [^]]*                   # Link target
471                                         \]\]
472                                 |
473                                         [\w-]+                          # Plain word
474                                 )
475                                 (?:\s*
476                                         ,                                       # Sub-vals 1..N
477                                         \s*
478                                         (
479                                                 "[^"]*"                 # Quoted val
480                                         |
481                                                 \[\[[^]]*\]\]   # Link target
482                                         |
483                                                 [\w-]+                  # Plain word
484                                         )
485                                 )*
486                         )?
487                         /x';
489                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
490                         foreach ( $matches as $bits ) {
491                                 $match = array_shift( $bits );
492                                 $key = strtolower( array_shift( $bits ) );
493                                 if ( count( $bits ) == 0 ) {
494                                         $opts[$key] = true;
495                                 } elseif ( count( $bits ) == 1 ) {
496                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
497                                 } else {
498                                         // Array!
499                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
500                                 }
501                         }
502                 }
503                 return $opts;
504         }
506         private function cleanupOption( $opt ) {
507                 if ( substr( $opt, 0, 1 ) == '"' ) {
508                         return substr( $opt, 1, -1 );
509                 }
511                 if ( substr( $opt, 0, 2 ) == '[[' ) {
512                         return substr( $opt, 2, -2 );
513                 }
514                 return $opt;
515         }
517         /**
518          * Set up the global variables for a consistent environment for each test.
519          * Ideally this should replace the global configuration entirely.
520          */
521         private function setupGlobals( $opts = '', $config = '' ) {
522                 global $wgDBtype;
524                 # Find out values for some special options.
525                 $lang =
526                         self::getOptionValue( 'language', $opts, 'en' );
527                 $variant =
528                         self::getOptionValue( 'variant', $opts, false );
529                 $maxtoclevel =
530                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
531                 $linkHolderBatchSize =
532                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
534                 $settings = array(
535                         'wgServer' => 'http://Britney-Spears',
536                         'wgScript' => '/index.php',
537                         'wgScriptPath' => '/',
538                         'wgArticlePath' => '/wiki/$1',
539                         'wgActionPaths' => array(),
540                         'wgLocalFileRepo' => array(
541                                 'class' => 'LocalRepo',
542                                 'name' => 'local',
543                                 'directory' => $this->uploadDir,
544                                 'url' => 'http://example.com/images',
545                                 'hashLevels' => 2,
546                                 'transformVia404' => false,
547                         ),
548                         'wgEnableUploads' => self::getOptionValue( 'wgEnableUploads', $opts, true ),
549                         'wgStylePath' => '/skins',
550                         'wgStyleSheetPath' => '/skins',
551                         'wgSitename' => 'MediaWiki',
552                         'wgLanguageCode' => $lang,
553                         'wgDBprefix' => $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_',
554                         'wgRawHtml' => isset( $opts['rawhtml'] ),
555                         'wgLang' => null,
556                         'wgContLang' => null,
557                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
558                         'wgMaxTocLevel' => $maxtoclevel,
559                         'wgCapitalLinks' => true,
560                         'wgNoFollowLinks' => true,
561                         'wgNoFollowDomainExceptions' => array(),
562                         'wgThumbnailScriptPath' => false,
563                         'wgUseImageResize' => false,
564                         'wgUseTeX' => isset( $opts['math'] ),
565                         'wgMathDirectory' => $this->uploadDir . '/math',
566                         'wgLocaltimezone' => 'UTC',
567                         'wgAllowExternalImages' => true,
568                         'wgUseTidy' => false,
569                         'wgDefaultLanguageVariant' => $variant,
570                         'wgVariantArticlePath' => false,
571                         'wgGroupPermissions' => array( '*' => array(
572                                 'createaccount' => true,
573                                 'read'          => true,
574                                 'edit'          => true,
575                                 'createpage'    => true,
576                                 'createtalk'    => true,
577                         ) ),
578                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
579                         'wgDefaultExternalStore' => array(),
580                         'wgForeignFileRepos' => array(),
581                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
582                         'wgExperimentalHtmlIds' => false,
583                         'wgExternalLinkTarget' => false,
584                         'wgAlwaysUseTidy' => false,
585                         'wgHtml5' => true,
586                         'wgWellFormedXml' => true,
587                         'wgAllowMicrodataAttributes' => true,
588                 );
590                 if ( $config ) {
591                         $configLines = explode( "\n", $config );
593                         foreach ( $configLines as $line ) {
594                                 list( $var, $value ) = explode( '=', $line, 2 );
596                                 $settings[$var] = eval( "return $value;" );
597                         }
598                 }
600                 $this->savedGlobals = array();
602                 foreach ( $settings as $var => $val ) {
603                         if ( array_key_exists( $var, $GLOBALS ) ) {
604                                 $this->savedGlobals[$var] = $GLOBALS[$var];
605                         }
607                         $GLOBALS[$var] = $val;
608                 }
610                 $langObj = Language::factory( $lang );
611                 $GLOBALS['wgLang'] = $langObj;
612                 $GLOBALS['wgContLang'] = $langObj;
613                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
614                 $GLOBALS['wgOut'] = new OutputPage;
616                 global $wgHooks;
618                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
619                 $wgHooks['ParserTestParser'][] = 'ParserTestStaticParserHook::setup';
620                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
622                 MagicWord::clearCache();
624                 global $wgUser;
625                 $wgUser = new User();
626         }
628         /**
629          * List of temporary tables to create, without prefix.
630          * Some of these probably aren't necessary.
631          */
632         private function listTables() {
633                 global $wgDBtype;
635                 $tables = array( 'user', 'user_properties', 'page', 'page_restrictions',
636                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
637                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
638                         'site_stats', 'hitcounter',     'ipblocks', 'image', 'oldimage',
639                         'recentchanges', 'watchlist', 'math', 'interwiki', 'logging',
640                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
641                         'archive', 'user_groups', 'page_props', 'category', 'msg_resource', 'msg_resource_links'
642                 );
644                 if ( in_array( $wgDBtype, array( 'mysql', 'sqlite' ) ) )
645                         array_push( $tables, 'searchindex' );
647                 // Allow extensions to add to the list of tables to duplicate;
648                 // may be necessary if they hook into page save or other code
649                 // which will require them while running tests.
650                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
652                 return $tables;
653         }
655         /**
656          * Set up a temporary set of wiki tables to work with for the tests.
657          * Currently this will only be done once per run, and any changes to
658          * the db will be visible to later tests in the run.
659          */
660         public function setupDatabase() {
661                 global $wgDBprefix, $wgDBtype;
663                 if ( $this->databaseSetupDone ) {
664                         return;
665                 }
667                 if ( $wgDBprefix === 'parsertest_' || ( $wgDBtype == 'oracle' && $wgDBprefix === 'pt_' ) ) {
668                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
669                 }
671                 $this->databaseSetupDone = true;
672                 $this->oldTablePrefix = $wgDBprefix;
674                 # SqlBagOStuff broke when using temporary tables on r40209 (bug 15892).
675                 # It seems to have been fixed since (r55079?).
676                 # If it fails, $wgCaches[CACHE_DB] = new HashBagOStuff(); should work around it.
678                 # CREATE TEMPORARY TABLE breaks if there is more than one server
679                 if ( wfGetLB()->getServerCount() != 1 ) {
680                         $this->useTemporaryTables = false;
681                 }
683                 $temporary = $this->useTemporaryTables || $wgDBtype == 'postgres';
685                 $db = wfGetDB( DB_MASTER );
686                 $tables = $this->listTables();
688                 foreach ( $tables as $tbl ) {
689                         # Clean up from previous aborted run.  So that table escaping
690                         # works correctly across DB engines, we need to change the pre-
691                         # fix back and forth so tableName() works right.
692                         $this->changePrefix( $this->oldTablePrefix );
693                         $oldTableName = $db->tableName( $tbl );
694                         $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
695                         $newTableName = $db->tableName( $tbl );
697                         if ( $wgDBtype == 'mysql' ) {
698                                 $db->query( "DROP TABLE IF EXISTS $newTableName" );
699                         } elseif ( in_array( $wgDBtype, array( 'postgres', 'oracle' ) ) ) {
700                                 /* DROPs wouldn't work due to Foreign Key Constraints (bug 14990, r58669)
701                                  * Use "DROP TABLE IF EXISTS $newTableName CASCADE" for postgres? That
702                                  * syntax would also work for mysql.
703                                  */
704                         } elseif ( $db->tableExists( $tbl ) ) {
705                                 $db->query( "DROP TABLE $newTableName" );
706                         }
708                         # Create new table
709                         $db->duplicateTableStructure( $oldTableName, $newTableName, $temporary );
710                 }
712                 if ( $wgDBtype == 'oracle' )
713                         $db->query( 'BEGIN FILL_WIKI_INFO; END;' );
715                 $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
717                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
718                 # for testing inter-language links
719                 $db->insert( 'interwiki', array(
720                         array( 'iw_prefix' => 'wikipedia',
721                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
722                                    'iw_api'    => '',
723                                    'iw_wikiid' => '',
724                                    'iw_local'  => 0 ),
725                         array( 'iw_prefix' => 'meatball',
726                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
727                                    'iw_api'    => '',
728                                    'iw_wikiid' => '',
729                                    'iw_local'  => 0 ),
730                         array( 'iw_prefix' => 'zh',
731                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
732                                    'iw_api'    => '',
733                                    'iw_wikiid' => '',
734                                    'iw_local'  => 1 ),
735                         array( 'iw_prefix' => 'es',
736                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
737                                    'iw_api'    => '',
738                                    'iw_wikiid' => '',
739                                    'iw_local'  => 1 ),
740                         array( 'iw_prefix' => 'fr',
741                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
742                                    'iw_api'    => '',
743                                    'iw_wikiid' => '',
744                                    'iw_local'  => 1 ),
745                         array( 'iw_prefix' => 'ru',
746                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
747                                    'iw_api'    => '',
748                                    'iw_wikiid' => '',
749                                    'iw_local'  => 1 ),
750                         ) );
753                 if ( $wgDBtype == 'oracle' ) {
754                         # Insert 0 user to prevent FK violations
756                         # Anonymous user
757                         $db->insert( 'user', array(
758                                 'user_id'         => 0,
759                                 'user_name'       => 'Anonymous' ) );
760                 }
762                 # Update certain things in site_stats
763                 $db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ) );
765                 # Reinitialise the LocalisationCache to match the database state
766                 Language::getLocalisationCache()->unloadAll();
768                 # Make a new message cache
769                 global $wgMessageCache, $wgMemc;
770                 $wgMessageCache = new MessageCache( $wgMemc, true, 3600 );
772                 $this->uploadDir = $this->setupUploadDir();
773                 $user = User::createNew( 'WikiSysop' );
774                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Foobar.jpg' ) );
775                 $image->recordUpload2( '', 'Upload of some lame file', 'Some lame file', array(
776                         'size'        => 12345,
777                         'width'       => 1941,
778                         'height'      => 220,
779                         'bits'        => 24,
780                         'media_type'  => MEDIATYPE_BITMAP,
781                         'mime'        => 'image/jpeg',
782                         'metadata'    => serialize( array() ),
783                         'sha1'        => sha1( '' ),
784                         'fileExists'  => true
785                         ), $db->timestamp( '20010115123500' ), $user );
787                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
788                 $image = wfLocalFile( Title::makeTitle( NS_FILE, 'Bad.jpg' ) );
789                 $image->recordUpload2( '', 'zomgnotcensored', 'Borderline image', array(
790                         'size'        => 12345,
791                         'width'       => 320,
792                         'height'      => 240,
793                         'bits'        => 24,
794                         'media_type'  => MEDIATYPE_BITMAP,
795                         'mime'        => 'image/jpeg',
796                         'metadata'    => serialize( array() ),
797                         'sha1'        => sha1( '' ),
798                         'fileExists'  => true
799                         ), $db->timestamp( '20010115123500' ), $user );
800         }
802         /**
803          * Change the table prefix on all open DB connections/
804          */
805         protected function changePrefix( $prefix ) {
806                 global $wgDBprefix;
807                 wfGetLBFactory()->forEachLB( array( $this, 'changeLBPrefix' ), array( $prefix ) );
808                 $wgDBprefix = $prefix;
809         }
811         public function changeLBPrefix( $lb, $prefix ) {
812                 $lb->forEachOpenConnection( array( $this, 'changeDBPrefix' ), array( $prefix ) );
813         }
815         public function changeDBPrefix( $db, $prefix ) {
816                 $db->tablePrefix( $prefix );
817         }
819         public function teardownDatabase() {
820                 global $wgDBtype;
822                 if ( !$this->databaseSetupDone ) {
823                         return;
824                 }
825                 $this->teardownUploadDir( $this->uploadDir );
827                 $this->changePrefix( $this->oldTablePrefix );
828                 $this->databaseSetupDone = false;
830                 if ( $this->useTemporaryTables ) {
831                         # Don't need to do anything
832                         return;
833                 }
835                 $tables = $this->listTables();
836                 $db = wfGetDB( DB_MASTER );
838                 foreach ( $tables as $table ) {
839                         $sql = $wgDBtype == 'oracle' ? "DROP TABLE pt_$table DROP CONSTRAINTS" : "DROP TABLE `parsertest_$table`";
840                         $db->query( $sql );
841                 }
843                 if ( $wgDBtype == 'oracle' )
844                         $db->query( 'BEGIN FILL_WIKI_INFO; END;' );
845         }
847         /**
848          * Create a dummy uploads directory which will contain a couple
849          * of files in order to pass existence tests.
850          *
851          * @return String: the directory
852          */
853         private function setupUploadDir() {
854                 global $IP;
856                 if ( $this->keepUploads ) {
857                         $dir = wfTempDir() . '/mwParser-images';
859                         if ( is_dir( $dir ) ) {
860                                 return $dir;
861                         }
862                 } else {
863                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
864                 }
866                 // wfDebug( "Creating upload directory $dir\n" );
867                 if ( file_exists( $dir ) ) {
868                         wfDebug( "Already exists!\n" );
869                         return $dir;
870                 }
872                 wfMkdirParents( $dir . '/3/3a' );
873                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
874                 wfMkdirParents( $dir . '/0/09' );
875                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
877                 return $dir;
878         }
880         /**
881          * Restore default values and perform any necessary clean-up
882          * after each test runs.
883          */
884         private function teardownGlobals() {
885                 RepoGroup::destroySingleton();
886                 LinkCache::singleton()->clear();
888                 foreach ( $this->savedGlobals as $var => $val ) {
889                         $GLOBALS[$var] = $val;
890                 }
891         }
893         /**
894          * Remove the dummy uploads directory
895          */
896         private function teardownUploadDir( $dir ) {
897                 if ( $this->keepUploads ) {
898                         return;
899                 }
901                 // delete the files first, then the dirs.
902                 self::deleteFiles(
903                         array (
904                                 "$dir/3/3a/Foobar.jpg",
905                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
906                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
907                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
908                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
910                                 "$dir/0/09/Bad.jpg",
912                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
913                         )
914                 );
916                 self::deleteDirs(
917                         array (
918                                 "$dir/3/3a",
919                                 "$dir/3",
920                                 "$dir/thumb/6/65",
921                                 "$dir/thumb/6",
922                                 "$dir/thumb/3/3a/Foobar.jpg",
923                                 "$dir/thumb/3/3a",
924                                 "$dir/thumb/3",
926                                 "$dir/0/09/",
927                                 "$dir/0/",
928                                 "$dir/thumb",
929                                 "$dir/math/f/a/5",
930                                 "$dir/math/f/a",
931                                 "$dir/math/f",
932                                 "$dir/math",
933                                 "$dir",
934                         )
935                 );
936         }
938         /**
939          * Delete the specified files, if they exist.
940          * @param $files Array: full paths to files to delete.
941          */
942         private static function deleteFiles( $files ) {
943                 foreach ( $files as $file ) {
944                         if ( file_exists( $file ) ) {
945                                 unlink( $file );
946                         }
947                 }
948         }
950         /**
951          * Delete the specified directories, if they exist. Must be empty.
952          * @param $dirs Array: full paths to directories to delete.
953          */
954         private static function deleteDirs( $dirs ) {
955                 foreach ( $dirs as $dir ) {
956                         if ( is_dir( $dir ) ) {
957                                 rmdir( $dir );
958                         }
959                 }
960         }
962         /**
963          * "Running test $desc..."
964          */
965         protected function showTesting( $desc ) {
966                 print "Running test $desc... ";
967         }
969         /**
970          * Print a happy success message.
971          *
972          * @param $desc String: the test name
973          * @return Boolean
974          */
975         protected function showSuccess( $desc ) {
976                 if ( $this->showProgress ) {
977                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
978                 }
980                 return true;
981         }
983         /**
984          * Print a failure message and provide some explanatory output
985          * about what went wrong if so configured.
986          *
987          * @param $desc String: the test name
988          * @param $result String: expected HTML output
989          * @param $html String: actual HTML output
990          * @return Boolean
991          */
992         protected function showFailure( $desc, $result, $html ) {
993                 if ( $this->showFailure ) {
994                         if ( !$this->showProgress ) {
995                                 # In quiet mode we didn't show the 'Testing' message before the
996                                 # test, in case it succeeded. Show it now:
997                                 $this->showTesting( $desc );
998                         }
1000                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
1002                         if ( $this->showOutput ) {
1003                                 print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
1004                         }
1006                         if ( $this->showDiffs ) {
1007                                 print $this->quickDiff( $result, $html );
1008                                 if ( !$this->wellFormed( $html ) ) {
1009                                         print "XML error: $this->mXmlError\n";
1010                                 }
1011                         }
1012                 }
1014                 return false;
1015         }
1017         /**
1018          * Run given strings through a diff and return the (colorized) output.
1019          * Requires writable /tmp directory and a 'diff' command in the PATH.
1020          *
1021          * @param $input String
1022          * @param $output String
1023          * @param $inFileTail String: tailing for the input file name
1024          * @param $outFileTail String: tailing for the output file name
1025          * @return String
1026          */
1027         protected function quickDiff( $input, $output, $inFileTail = 'expected', $outFileTail = 'actual' ) {
1028                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
1030                 $infile = "$prefix-$inFileTail";
1031                 $this->dumpToFile( $input, $infile );
1033                 $outfile = "$prefix-$outFileTail";
1034                 $this->dumpToFile( $output, $outfile );
1036                 $diff = `diff -au $infile $outfile`;
1037                 unlink( $infile );
1038                 unlink( $outfile );
1040                 return $this->colorDiff( $diff );
1041         }
1043         /**
1044          * Write the given string to a file, adding a final newline.
1045          *
1046          * @param $data String
1047          * @param $filename String
1048          */
1049         private function dumpToFile( $data, $filename ) {
1050                 $file = fopen( $filename, "wt" );
1051                 fwrite( $file, $data . "\n" );
1052                 fclose( $file );
1053         }
1055         /**
1056          * Colorize unified diff output if set for ANSI color output.
1057          * Subtractions are colored blue, additions red.
1058          *
1059          * @param $text String
1060          * @return String
1061          */
1062         protected function colorDiff( $text ) {
1063                 return preg_replace(
1064                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1065                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1066                                    $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1067                         $text );
1068         }
1070         /**
1071          * Show "Reading tests from ..."
1072          *
1073          * @param $path String
1074          */
1075         public function showRunFile( $path ) {
1076                 print $this->term->color( 1 ) .
1077                         "Reading tests from \"$path\"..." .
1078                         $this->term->reset() .
1079                         "\n";
1080         }
1082         /**
1083          * Insert a temporary test article
1084          * @param $name String: the title, including any prefix
1085          * @param $text String: the article text
1086          * @param $line Integer: the input line number, for reporting errors
1087          */
1088         public function addArticle( $name, $text, $line ) {
1089                 global $wgCapitalLinks;
1090                 $oldCapitalLinks = $wgCapitalLinks;
1091                 $wgCapitalLinks = true; // We only need this from SetupGlobals() See r70917#c8637
1093                 $title = Title::newFromText( $name );
1095                 if ( is_null( $title ) ) {
1096                         wfDie( "invalid title at line $line\n" );
1097                 }
1099                 $aid = $title->getArticleID( Title::GAID_FOR_UPDATE );
1101                 if ( $aid != 0 ) {
1102                         wfDie( "duplicate article '$name' at line $line\n" );
1103                 }
1105                 $art = new Article( $title );
1106                 $art->insertNewArticle( $text, '', false, false );
1108                 $wgCapitalLinks = $oldCapitalLinks;
1109         }
1111         /**
1112          * Steal a callback function from the primary parser, save it for
1113          * application to our scary parser. If the hook is not installed,
1114          * abort processing of this file.
1115          *
1116          * @param $name String
1117          * @return Bool true if tag hook is present
1118          */
1119         public function requireHook( $name ) {
1120                 global $wgParser;
1122                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
1124                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1125                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1126                 } else {
1127                         echo "   This test suite requires the '$name' hook extension, skipping.\n";
1128                         return false;
1129                 }
1131                 return true;
1132         }
1134         /**
1135          * Steal a callback function from the primary parser, save it for
1136          * application to our scary parser. If the hook is not installed,
1137          * abort processing of this file.
1138          *
1139          * @param $name String
1140          * @return Bool true if function hook is present
1141          */
1142         public function requireFunctionHook( $name ) {
1143                 global $wgParser;
1145                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
1147                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1148                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1149                 } else {
1150                         echo "   This test suite requires the '$name' function hook extension, skipping.\n";
1151                         return false;
1152                 }
1154                 return true;
1155         }
1157         /*
1158          * Run the "tidy" command on text if the $wgUseTidy
1159          * global is true
1160          *
1161          * @param $text String: the text to tidy
1162          * @return String
1163          * @static
1164          */
1165         private function tidy( $text ) {
1166                 global $wgUseTidy;
1168                 if ( $wgUseTidy ) {
1169                         $text = MWTidy::tidy( $text );
1170                 }
1172                 return $text;
1173         }
1175         private function wellFormed( $text ) {
1176                 $html =
1177                         Sanitizer::hackDocType() .
1178                         '<html>' .
1179                         $text .
1180                         '</html>';
1182                 $parser = xml_parser_create( "UTF-8" );
1184                 # case folding violates XML standard, turn it off
1185                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1187                 if ( !xml_parse( $parser, $html, true ) ) {
1188                         $err = xml_error_string( xml_get_error_code( $parser ) );
1189                         $position = xml_get_current_byte_index( $parser );
1190                         $fragment = $this->extractFragment( $html, $position );
1191                         $this->mXmlError = "$err at byte $position:\n$fragment";
1192                         xml_parser_free( $parser );
1194                         return false;
1195                 }
1197                 xml_parser_free( $parser );
1199                 return true;
1200         }
1202         private function extractFragment( $text, $position ) {
1203                 $start = max( 0, $position - 10 );
1204                 $before = $position - $start;
1205                 $fragment = '...' .
1206                         $this->term->color( 34 ) .
1207                         substr( $text, $start, $before ) .
1208                         $this->term->color( 0 ) .
1209                         $this->term->color( 31 ) .
1210                         $this->term->color( 1 ) .
1211                         substr( $text, $position, 1 ) .
1212                         $this->term->color( 0 ) .
1213                         $this->term->color( 34 ) .
1214                         substr( $text, $position + 1, 9 ) .
1215                         $this->term->color( 0 ) .
1216                         '...';
1217                 $display = str_replace( "\n", ' ', $fragment );
1218                 $caret = '   ' .
1219                         str_repeat( ' ', $before ) .
1220                         $this->term->color( 31 ) .
1221                         '^' .
1222                         $this->term->color( 0 );
1224                 return "$display\n$caret";
1225         }
1227         static function getFakeTimestamp( &$parser, &$ts ) {
1228                 $ts = 123;
1229                 return true;
1230         }