maintenance/parserTests.inc

   1 <?php
   2 # Copyright (C) 2004, 2010 Brion Vibber <brion@pobox.com>
   3 # http://www.mediawiki.org/
   4 #
   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.
   9 #
  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.
  14 #
  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
  19
  20 /**
  21  * @todo Make this more independent of the configuration (and if possible the database)
  22  * @todo document
  23  * @file
  24  * @ingroup Maintenance
  25  */
  26
  27 /**
  28  * @ingroup Maintenance
  29  */
  30 class ParserTest {
  31         /**
  32          * boolean $color whereas output should be colorized
  33          */
  34         private $color;
  35
  36         /**
  37          * boolean $showOutput Show test output
  38          */
  39         private $showOutput;
  40
  41         /**
  42          * boolean $useTemporaryTables Use temporary tables for the temporary database
  43          */
  44         private $useTemporaryTables = true;
  45
  46         /**
  47          * boolean $databaseSetupDone True if the database has been set up
  48          */
  49         private $databaseSetupDone = false;
  50
  51         /**
  52          * string $oldTablePrefix Original table prefix
  53          */
  54         private $oldTablePrefix;
  55
  56         private $maxFuzzTestLength = 300;
  57         private $fuzzSeed = 0;
  58         private $memoryLimit = 50;
  59
  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() {
  65                 global $options;
  66
  67                 # Only colorize output if stdout is a terminal.
  68                 $this->color = !wfIsWindows() && posix_isatty( 1 );
  69
  70                 if ( isset( $options['color'] ) ) {
  71                         switch( $options['color'] ) {
  72                         case 'no':
  73                                 $this->color = false;
  74                                 break;
  75                         case 'yes':
  76                         default:
  77                                 $this->color = true;
  78                                 break;
  79                         }
  80                 }
  81                 $this->term = $this->color
  82                         ? new AnsiTermColorer()
  83                         : new DummyTermColorer();
  84
  85                 $this->showDiffs = !isset( $options['quick'] );
  86                 $this->showProgress = !isset( $options['quiet'] );
  87                 $this->showFailure = !(
  88                         isset( $options['quiet'] )
  89                         && ( isset( $options['record'] )
  90                                 || isset( $options['compare'] ) ) ); // redundant output
  91
  92                 $this->showOutput = isset( $options['show-output'] );
  93
  94
  95                 if ( isset( $options['regex'] ) ) {
  96                         if ( isset( $options['record'] ) ) {
  97                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
  98                                 unset( $options['record'] );
  99                         }
 100                         $this->regex = $options['regex'];
 101                 } else {
 102                         # Matches anything
 103                         $this->regex = '';
 104                 }
 105
 106                 $this->setupRecorder();
 107                 $this->keepUploads = isset( $options['keep-uploads'] );
 108
 109                 if ( isset( $options['seed'] ) ) {
 110                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
 111                 }
 112
 113                 $this->runDisabled = isset( $options['run-disabled'] );
 114
 115                 $this->hooks = array();
 116                 $this->functionHooks = array();
 117         }
 118
 119         public function setupRecorder() {
 120                 global $options;
 121                 if ( isset( $options['record'] ) ) {
 122                         $this->recorder = new DbTestRecorder( $this );
 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         }
 131
 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         }
 143
 144         /**
 145          * Run a fuzz test series
 146          * Draw input from a set of test files
 147          */
 148         function fuzzTest( $filenames ) {
 149                 $dict = $this->getFuzzInput( $filenames );
 150                 $dictSize = strlen( $dict );
 151                 $logMaxLength = log( $this->maxFuzzTestLength );
 152                 $this->setupDatabase();
 153                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 154
 155                 $numTotal = 0;
 156                 $numSuccess = 0;
 157                 $user = new User;
 158                 $opts = ParserOptions::newFromUser( $user );
 159                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 160
 161                 while ( true ) {
 162                         // Generate test input
 163                         mt_srand( ++$this->fuzzSeed );
 164                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 165                         $input = '';
 166                         while ( strlen( $input ) < $totalLength ) {
 167                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 168                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 169                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 170                                 $input .= substr( $dict, $offset, $hairLength );
 171                         }
 172
 173                         $this->setupGlobals();
 174                         $parser = $this->getParser();
 175                         // Run the test
 176                         try {
 177                                 $parser->parse( $input, $title, $opts );
 178                                 $fail = false;
 179                         } catch ( Exception $exception ) {
 180                                 $fail = true;
 181                         }
 182
 183                         if ( $fail ) {
 184                                 echo "Test failed with seed {$this->fuzzSeed}\n";
 185                                 echo "Input:\n";
 186                                 var_dump( $input );
 187                                 echo "\n\n";
 188                                 echo "$exception\n";
 189                         } else {
 190                                 $numSuccess++;
 191                         }
 192                         $numTotal++;
 193                         $this->teardownGlobals();
 194                         $parser->__destruct();
 195
 196                         if ( $numTotal % 100 == 0 ) {
 197                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 198                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 199                                 if ( $usage > 90 ) {
 200                                         echo "Out of memory:\n";
 201                                         $memStats = $this->getMemoryBreakdown();
 202                                         foreach ( $memStats as $name => $usage ) {
 203                                                 echo "$name: $usage\n";
 204                                         }
 205                                         $this->abort();
 206                                 }
 207                         }
 208                 }
 209         }
 210
 211         /**
 212          * Get an input dictionary from a set of parser test files
 213          */
 214         function getFuzzInput( $filenames ) {
 215                 $dict = '';
 216                 foreach ( $filenames as $filename ) {
 217                         $contents = file_get_contents( $filename );
 218                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 219                         foreach ( $matches[1] as $match ) {
 220                                 $dict .= $match . "\n";
 221                         }
 222                 }
 223                 return $dict;
 224         }
 225
 226         /**
 227          * Get a memory usage breakdown
 228          */
 229         function getMemoryBreakdown() {
 230                 $memStats = array();
 231                 foreach ( $GLOBALS as $name => $value ) {
 232                         $memStats['$' . $name] = strlen( serialize( $value ) );
 233                 }
 234                 $classes = get_declared_classes();
 235                 foreach ( $classes as $class ) {
 236                         $rc = new ReflectionClass( $class );
 237                         $props = $rc->getStaticProperties();
 238                         $memStats[$class] = strlen( serialize( $props ) );
 239                         $methods = $rc->getMethods();
 240                         foreach ( $methods as $method ) {
 241                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 242                         }
 243                 }
 244                 $functions = get_defined_functions();
 245                 foreach ( $functions['user'] as $function ) {
 246                         $rf = new ReflectionFunction( $function );
 247                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 248                 }
 249                 asort( $memStats );
 250                 return $memStats;
 251         }
 252
 253         function abort() {
 254                 $this->abort();
 255         }
 256
 257         /**
 258          * Run a series of tests listed in the given text files.
 259          * Each test consists of a brief description, wikitext input,
 260          * and the expected HTML output.
 261          *
 262          * Prints status updates on stdout and counts up the total
 263          * number and percentage of passed tests.
 264          *
 265          * @param $filenames Array of strings
 266          * @return Boolean: true if passed all tests, false if any tests failed.
 267          */
 268         public function runTestsFromFiles( $filenames ) {
 269                 $this->recorder->start();
 270                 $this->setupDatabase();
 271                 $ok = true;
 272                 foreach ( $filenames as $filename ) {
 273                         $tests = new TestFileIterator( $filename, $this );
 274                         $ok = $this->runTests( $tests ) && $ok;
 275                 }
 276                 $this->teardownDatabase();
 277                 $this->recorder->report();
 278                 $this->recorder->end();
 279                 return $ok;
 280         }
 281
 282         function runTests( $tests ) {
 283                 $ok = true;
 284                 foreach ( $tests as $i => $t ) {
 285                         $result =
 286                                 $this->runTest( $t['test'], $t['input'], $t['result'], $t['options'], $t['config'] );
 287                         $ok = $ok && $result;
 288                         $this->recorder->record( $t['test'], $result );
 289                 }
 290                 if ( $this->showProgress ) {
 291                         print "\n";
 292                 }
 293                 return $ok;
 294         }
 295
 296         /**
 297          * Get a Parser object
 298          */
 299         function getParser( $preprocessor = null ) {
 300                 global $wgParserConf;
 301                 $class = $wgParserConf['class'];
 302                 $parser = new $class( array( 'preprocessorClass' => $preprocessor ) + $wgParserConf );
 303                 foreach ( $this->hooks as $tag => $callback ) {
 304                         $parser->setHook( $tag, $callback );
 305                 }
 306                 foreach ( $this->functionHooks as $tag => $bits ) {
 307                         list( $callback, $flags ) = $bits;
 308                         $parser->setFunctionHook( $tag, $callback, $flags );
 309                 }
 310                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 311                 return $parser;
 312         }
 313
 314         /**
 315          * Run a given wikitext input through a freshly-constructed wiki parser,
 316          * and compare the output against the expected results.
 317          * Prints status and explanatory messages to stdout.
 318          *
 319          * @param $desc String: test's description
 320          * @param $input String: wikitext to try rendering
 321          * @param $result String: result to output
 322          * @param $opts Array: test's options
 323          * @param $config String: overrides for global variables, one per line
 324          * @return Boolean
 325          */
 326         public function runTest( $desc, $input, $result, $opts, $config ) {
 327                 if ( $this->showProgress ) {
 328                         $this->showTesting( $desc );
 329                 }
 330
 331                 $opts = $this->parseOptions( $opts );
 332                 $this->setupGlobals( $opts, $config );
 333
 334                 $user = new User();
 335                 $options = ParserOptions::newFromUser( $user );
 336
 337                 $m = array();
 338                 if ( isset( $opts['title'] ) ) {
 339                         $titleText = $opts['title'];
 340                 }
 341                 else {
 342                         $titleText = 'Parser test';
 343                 }
 344
 345                 $noxml = isset( $opts['noxml'] );
 346                 $local = isset( $opts['local'] );
 347                 $preprocessor = isset( $opts['preprocessor'] ) ? $opts['preprocessor'] : null;
 348                 $parser = $this->getParser( $preprocessor );
 349                 $title = Title::newFromText( $titleText );
 350
 351                 $matches = array();
 352                 if ( isset( $opts['pst'] ) ) {
 353                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 354                 } elseif ( isset( $opts['msg'] ) ) {
 355                         $out = $parser->transformMsg( $input, $options );
 356                 } elseif ( isset( $opts['section'] ) ) {
 357                         $section = $opts['section'];
 358                         $out = $parser->getSection( $input, $section );
 359                 } elseif ( isset( $opts['replace'] ) ) {
 360                         $section = $opts['replace'][0];
 361                         $replace = $opts['replace'][1];
 362                         $out = $parser->replaceSection( $input, $section, $replace );
 363                 } elseif ( isset( $opts['comment'] ) ) {
 364                         $linker = $user->getSkin();
 365                         $out = $linker->formatComment( $input, $title, $local );
 366                 } elseif ( isset( $opts['preload'] ) ) {
 367                         $out = $parser->getpreloadText( $input, $title, $options );
 368                 } else {
 369                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 370                         $out = $output->getText();
 371
 372                         if ( isset( $opts['showtitle'] ) ) {
 373                                 if ( $output->getTitleText() ) $title = $output->getTitleText();
 374                                 $out = "$title\n$out";
 375                         }
 376                         if ( isset( $opts['ill'] ) ) {
 377                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 378                         } elseif ( isset( $opts['cat'] ) ) {
 379                                 global $wgOut;
 380                                 $wgOut->addCategoryLinks( $output->getCategories() );
 381                                 $cats = $wgOut->getCategoryLinks();
 382                                 if ( isset( $cats['normal'] ) ) {
 383                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 384                                 } else {
 385                                         $out = '';
 386                                 }
 387                         }
 388
 389                         $result = $this->tidy( $result );
 390                 }
 391
 392
 393                 $this->teardownGlobals();
 394
 395                 if ( $result === $out && ( $noxml === true || $this->wellFormed( $out ) ) ) {
 396                         return $this->showSuccess( $desc );
 397                 } else {
 398                         return $this->showFailure( $desc, $result, $out );
 399                 }
 400         }
 401
 402
 403         /**
 404          * Use a regex to find out the value of an option
 405          * @param $key String: name of option val to retrieve
 406          * @param $opts Options array to look in
 407          * @param $default Mixed: default value returned if not found
 408          */
 409         private static function getOptionValue( $key, $opts, $default ) {
 410                 $key = strtolower( $key );
 411                 if ( isset( $opts[$key] ) ) {
 412                         return $opts[$key];
 413                 } else {
 414                         return $default;
 415                 }
 416         }
 417
 418         private function parseOptions( $instring ) {
 419                 $opts = array();
 420                 $lines = explode( "\n", $instring );
 421                 // foo
 422                 // foo=bar
 423                 // foo="bar baz"
 424                 // foo=[[bar baz]]
 425                 // foo=bar,"baz quux"
 426                 $regex = '/\b
 427                         ([\w-]+)                                                # Key
 428                         \b
 429                         (?:\s*
 430                                 =                                               # First sub-value
 431                                 \s*
 432                                 (
 433                                         "
 434                                                 [^"]*                   # Quoted val
 435                                         "
 436                                 |
 437                                         \[\[
 438                                                 [^]]*                   # Link target
 439                                         \]\]
 440                                 |
 441                                         [\w-]+                          # Plain word
 442                                 )
 443                                 (?:\s*
 444                                         ,                                       # Sub-vals 1..N
 445                                         \s*
 446                                         (
 447                                                 "[^"]*"                 # Quoted val
 448                                         |
 449                                                 \[\[[^]]*\]\]   # Link target
 450                                         |
 451                                                 [\w-]+                  # Plain word
 452                                         )
 453                                 )*
 454                         )?
 455                         /x';
 456
 457                 if ( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 458                         foreach ( $matches as $bits ) {
 459                                 $match = array_shift( $bits );
 460                                 $key = strtolower( array_shift( $bits ) );
 461                                 if ( count( $bits ) == 0 ) {
 462                                         $opts[$key] = true;
 463                                 } elseif ( count( $bits ) == 1 ) {
 464                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 465                                 } else {
 466                                         // Array!
 467                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 468                                 }
 469                         }
 470                 }
 471                 return $opts;
 472         }
 473
 474         private function cleanupOption( $opt ) {
 475                 if ( substr( $opt, 0, 1 ) == '"' ) {
 476                         return substr( $opt, 1, -1 );
 477                 }
 478                 if ( substr( $opt, 0, 2 ) == '[[' ) {
 479                         return substr( $opt, 2, -2 );
 480                 }
 481                 return $opt;
 482         }
 483
 484         /**
 485          * Set up the global variables for a consistent environment for each test.
 486          * Ideally this should replace the global configuration entirely.
 487          */
 488         private function setupGlobals( $opts = '', $config = '' ) {
 489                 global $wgDBtype;
 490                 if ( !isset( $this->uploadDir ) ) {
 491                         $this->uploadDir = $this->setupUploadDir();
 492                 }
 493
 494                 # Find out values for some special options.
 495                 $lang =
 496                         self::getOptionValue( 'language', $opts, 'en' );
 497                 $variant =
 498                         self::getOptionValue( 'variant', $opts, false );
 499                 $maxtoclevel =
 500                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 501                 $linkHolderBatchSize =
 502                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 503
 504                 $settings = array(
 505                         'wgServer' => 'http://localhost',
 506                         'wgScript' => '/index.php',
 507                         'wgScriptPath' => '/',
 508                         'wgArticlePath' => '/wiki/$1',
 509                         'wgActionPaths' => array(),
 510                         'wgLocalFileRepo' => array(
 511                                 'class' => 'LocalRepo',
 512                                 'name' => 'local',
 513                                 'directory' => $this->uploadDir,
 514                                 'url' => 'http://example.com/images',
 515                                 'hashLevels' => 2,
 516                                 'transformVia404' => false,
 517                         ),
 518                         'wgEnableUploads' => true,
 519                         'wgStyleSheetPath' => '/skins',
 520                         'wgSitename' => 'MediaWiki',
 521                         'wgServerName' => 'Britney-Spears',
 522                         'wgLanguageCode' => $lang,
 523                         'wgContLanguageCode' => $lang,
 524                         'wgDBprefix' => $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_',
 525                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 526                         'wgLang' => null,
 527                         'wgContLang' => null,
 528                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 529                         'wgMaxTocLevel' => $maxtoclevel,
 530                         'wgCapitalLinks' => true,
 531                         'wgNoFollowLinks' => true,
 532                         'wgNoFollowDomainExceptions' => array(),
 533                         'wgThumbnailScriptPath' => false,
 534                         'wgUseImageResize' => false,
 535                         'wgUseTeX' => isset( $opts['math'] ),
 536                         'wgMathDirectory' => $this->uploadDir . '/math',
 537                         'wgLocaltimezone' => 'UTC',
 538                         'wgAllowExternalImages' => true,
 539                         'wgUseTidy' => false,
 540                         'wgDefaultLanguageVariant' => $variant,
 541                         'wgVariantArticlePath' => false,
 542                         'wgGroupPermissions' => array( '*' => array(
 543                                 'createaccount' => true,
 544                                 'read'          => true,
 545                                 'edit'          => true,
 546                                 'createpage'    => true,
 547                                 'createtalk'    => true,
 548                         ) ),
 549                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 550                         'wgDefaultExternalStore' => array(),
 551                         'wgForeignFileRepos' => array(),
 552                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 553                         'wgExperimentalHtmlIds' => false,
 554                         'wgExternalLinkTarget' => false,
 555                         'wgAlwaysUseTidy' => false,
 556                         'wgHtml5' => true,
 557                         'wgWellFormedXml' => true,
 558                         'wgAllowMicrodataAttributes' => true,
 559                 );
 560
 561                 if ( $config ) {
 562                         $configLines = explode( "\n", $config );
 563
 564                         foreach ( $configLines as $line ) {
 565                                 list( $var, $value ) = explode( '=', $line, 2 );
 566
 567                                 $settings[$var] = eval( "return $value;" );
 568                         }
 569                 }
 570
 571                 $this->savedGlobals = array();
 572                 foreach ( $settings as $var => $val ) {
 573                         if ( array_key_exists( $var, $GLOBALS ) ) {
 574                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 575                         }
 576                         $GLOBALS[$var] = $val;
 577                 }
 578                 $langObj = Language::factory( $lang );
 579                 $GLOBALS['wgLang'] = $langObj;
 580                 $GLOBALS['wgContLang'] = $langObj;
 581                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
 582                 $GLOBALS['wgOut'] = new OutputPage;
 583
 584                 global $wgHooks;
 585                 $wgHooks['ParserTestParser'][] = 'ParserTestParserHook::setup';
 586                 $wgHooks['ParserTestParser'][] = 'ParserTestStaticParserHook::setup';
 587                 $wgHooks['ParserGetVariableValueTs'][] = 'ParserTest::getFakeTimestamp';
 588
 589                 MagicWord::clearCache();
 590
 591                 global $wgUser;
 592                 $wgUser = new User();
 593         }
 594
 595         /**
 596          * List of temporary tables to create, without prefix.
 597          * Some of these probably aren't necessary.
 598          */
 599         private function listTables() {
 600                 global $wgDBtype;
 601                 $tables = array( 'user', 'page', 'page_restrictions',
 602                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 603                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
 604                         'site_stats', 'hitcounter',     'ipblocks', 'image', 'oldimage',
 605                         'recentchanges', 'watchlist', 'math', 'interwiki',
 606                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 607                         'archive', 'user_groups', 'page_props', 'category',
 608                 );
 609
 610                 if ( $wgDBtype === 'mysql' )
 611                         array_push( $tables, 'searchindex' );
 612
 613                 // Allow extensions to add to the list of tables to duplicate;
 614                 // may be necessary if they hook into page save or other code
 615                 // which will require them while running tests.
 616                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
 617
 618                 return $tables;
 619         }
 620
 621         /**
 622          * Set up a temporary set of wiki tables to work with for the tests.
 623          * Currently this will only be done once per run, and any changes to
 624          * the db will be visible to later tests in the run.
 625          */
 626         public function setupDatabase() {
 627                 global $wgDBprefix, $wgDBtype;
 628                 if ( $this->databaseSetupDone ) {
 629                         return;
 630                 }
 631                 if ( $wgDBprefix === 'parsertest_' || ( $wgDBtype == 'oracle' && $wgDBprefix === 'pt_' ) ) {
 632                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
 633                 }
 634                 $this->databaseSetupDone = true;
 635                 $this->oldTablePrefix = $wgDBprefix;
 636
 637                 # SqlBagOStuff broke when using temporary tables on r40209 (bug 15892).
 638                 # It seems to have been fixed since (r55079?).
 639                 # If it fails, $wgCaches[CACHE_DB] = new HashBagOStuff(); should work around it.
 640
 641                 # CREATE TEMPORARY TABLE breaks if there is more than one server
 642                 if ( wfGetLB()->getServerCount() != 1 ) {
 643                         $this->useTemporaryTables = false;
 644                 }
 645
 646                 $temporary = $this->useTemporaryTables || $wgDBtype == 'postgres';
 647
 648                 $db = wfGetDB( DB_MASTER );
 649                 $tables = $this->listTables();
 650
 651                 foreach ( $tables as $tbl ) {
 652                         # Clean up from previous aborted run.  So that table escaping
 653                         # works correctly across DB engines, we need to change the pre-
 654                         # fix back and forth so tableName() works right.
 655                         $this->changePrefix( $this->oldTablePrefix );
 656                         $oldTableName = $db->tableName( $tbl );
 657                         $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
 658                         $newTableName = $db->tableName( $tbl );
 659
 660                         if ( $db->tableExists( $tbl ) && $wgDBtype != 'postgres' && $wgDBtype != 'oracle' ) {
 661                                 $db->query( "DROP TABLE $newTableName" );
 662                         }
 663                         # Create new table
 664                         $db->duplicateTableStructure( $oldTableName, $newTableName, $temporary );
 665                 }
 666                 if ( $wgDBtype == 'oracle' )
 667                         $db->query( 'BEGIN FILL_WIKI_INFO; END;' );
 668
 669                 $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
 670
 671                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 672                 # for testing inter-language links
 673                 $db->insert( 'interwiki', array(
 674                         array( 'iw_prefix' => 'wikipedia',
 675                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 676                                    'iw_local'  => 0 ),
 677                         array( 'iw_prefix' => 'meatball',
 678                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 679                                    'iw_local'  => 0 ),
 680                         array( 'iw_prefix' => 'zh',
 681                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 682                                    'iw_local'  => 1 ),
 683                         array( 'iw_prefix' => 'es',
 684                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 685                                    'iw_local'  => 1 ),
 686                         array( 'iw_prefix' => 'fr',
 687                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 688                                    'iw_local'  => 1 ),
 689                         array( 'iw_prefix' => 'ru',
 690                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 691                                    'iw_local'  => 1 ),
 692                         ) );
 693
 694
 695                 if ( $wgDBtype == 'oracle' ) {
 696                         # Insert 0 and 1 user_ids to prevent FK violations
 697
 698                         # Anonymous user
 699                         $db->insert( 'user', array(
 700                                 'user_id'         => 0,
 701                                 'user_name'       => 'Anonymous' ) );
 702
 703                         # Hack-on-Hack: Insert a test user to be able to insert an image
 704                         $db->insert( 'user', array(
 705                                 'user_id'         => 1,
 706                                 'user_name'       => 'Tester' ) );
 707                 }
 708
 709                 # Hack: Insert an image to work with
 710                 $db->insert( 'image', array(
 711                         'img_name'        => 'Foobar.jpg',
 712                         'img_size'        => 12345,
 713                         'img_description' => 'Some lame file',
 714                         'img_user'        => 1,
 715                         'img_user_text'   => 'WikiSysop',
 716                         'img_timestamp'   => $db->timestamp( '20010115123500' ),
 717                         'img_width'       => 1941,
 718                         'img_height'      => 220,
 719                         'img_bits'        => 24,
 720                         'img_media_type'  => MEDIATYPE_BITMAP,
 721                         'img_major_mime'  => "image",
 722                         'img_minor_mime'  => "jpeg",
 723                         'img_metadata'    => serialize( array() ),
 724                         ) );
 725
 726                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 727                 $db->insert( 'image', array(
 728                         'img_name'        => 'Bad.jpg',
 729                         'img_size'        => 12345,
 730                         'img_description' => 'zomgnotcensored',
 731                         'img_user'        => 1,
 732                         'img_user_text'   => 'WikiSysop',
 733                         'img_timestamp'   => $db->timestamp( '20010115123500' ),
 734                         'img_width'       => 320,
 735                         'img_height'      => 240,
 736                         'img_bits'        => 24,
 737                         'img_media_type'  => MEDIATYPE_BITMAP,
 738                         'img_major_mime'  => "image",
 739                         'img_minor_mime'  => "jpeg",
 740                         'img_metadata'    => serialize( array() ),
 741                         ) );
 742
 743                 # Update certain things in site_stats
 744                 $db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ) );
 745
 746                 # Reinitialise the LocalisationCache to match the database state
 747                 Language::getLocalisationCache()->unloadAll();
 748
 749                 # Make a new message cache
 750                 global $wgMessageCache, $wgMemc;
 751                 $wgMessageCache = new MessageCache( $wgMemc, true, 3600, '' );
 752         }
 753
 754         /**
 755          * Change the table prefix on all open DB connections/
 756          */
 757         protected function changePrefix( $prefix ) {
 758                 global $wgDBprefix;
 759                 wfGetLBFactory()->forEachLB( array( $this, 'changeLBPrefix' ), array( $prefix ) );
 760                 $wgDBprefix = $prefix;
 761         }
 762
 763         public function changeLBPrefix( $lb, $prefix ) {
 764                 $lb->forEachOpenConnection( array( $this, 'changeDBPrefix' ), array( $prefix ) );
 765         }
 766
 767         public function changeDBPrefix( $db, $prefix ) {
 768                 $db->tablePrefix( $prefix );
 769         }
 770
 771         public function teardownDatabase() {
 772                 global $wgDBtype;
 773                 if ( !$this->databaseSetupDone ) {
 774                         return;
 775                 }
 776                 $this->changePrefix( $this->oldTablePrefix );
 777                 $this->databaseSetupDone = false;
 778                 if ( $this->useTemporaryTables ) {
 779                         # Don't need to do anything
 780                         return;
 781                 }
 782
 783                 $tables = $this->listTables();
 784                 $db = wfGetDB( DB_MASTER );
 785                 foreach ( $tables as $table ) {
 786                         $sql = $wgDBtype == 'oracle' ? "DROP TABLE pt_$table DROP CONSTRAINTS" : "DROP TABLE `parsertest_$table`";
 787                         $db->query( $sql );
 788                 }
 789                 if ($wgDBtype == 'oracle')
 790                         $db->query('BEGIN FILL_WIKI_INFO; END;');
 791         }
 792
 793         /**
 794          * Create a dummy uploads directory which will contain a couple
 795          * of files in order to pass existence tests.
 796          *
 797          * @return String: the directory
 798          */
 799         private function setupUploadDir() {
 800                 global $IP;
 801                 if ( $this->keepUploads ) {
 802                         $dir = wfTempDir() . '/mwParser-images';
 803                         if ( is_dir( $dir ) ) {
 804                                 return $dir;
 805                         }
 806                 } else {
 807                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 808                 }
 809
 810                 wfDebug( "Creating upload directory $dir\n" );
 811                 if ( file_exists( $dir ) ) {
 812                         wfDebug( "Already exists!\n" );
 813                         return $dir;
 814                 }
 815                 wfMkdirParents( $dir . '/3/3a' );
 816                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 817
 818                 wfMkdirParents( $dir . '/0/09' );
 819                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 820                 return $dir;
 821         }
 822
 823         /**
 824          * Restore default values and perform any necessary clean-up
 825          * after each test runs.
 826          */
 827         private function teardownGlobals() {
 828                 RepoGroup::destroySingleton();
 829                 LinkCache::singleton()->clear();
 830                 foreach ( $this->savedGlobals as $var => $val ) {
 831                         $GLOBALS[$var] = $val;
 832                 }
 833                 if ( isset( $this->uploadDir ) ) {
 834                         $this->teardownUploadDir( $this->uploadDir );
 835                         unset( $this->uploadDir );
 836                 }
 837         }
 838
 839         /**
 840          * Remove the dummy uploads directory
 841          */
 842         private function teardownUploadDir( $dir ) {
 843                 if ( $this->keepUploads ) {
 844                         return;
 845                 }
 846
 847                 // delete the files first, then the dirs.
 848                 self::deleteFiles(
 849                         array (
 850                                 "$dir/3/3a/Foobar.jpg",
 851                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 852                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 853                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 854                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 855
 856                                 "$dir/0/09/Bad.jpg",
 857
 858                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 859                         )
 860                 );
 861
 862                 self::deleteDirs(
 863                         array (
 864                                 "$dir/3/3a",
 865                                 "$dir/3",
 866                                 "$dir/thumb/6/65",
 867                                 "$dir/thumb/6",
 868                                 "$dir/thumb/3/3a/Foobar.jpg",
 869                                 "$dir/thumb/3/3a",
 870                                 "$dir/thumb/3",
 871
 872                                 "$dir/0/09/",
 873                                 "$dir/0/",
 874                                 "$dir/thumb",
 875                                 "$dir/math/f/a/5",
 876                                 "$dir/math/f/a",
 877                                 "$dir/math/f",
 878                                 "$dir/math",
 879                                 "$dir",
 880                         )
 881                 );
 882         }
 883
 884         /**
 885          * Delete the specified files, if they exist.
 886          * @param $files Array: full paths to files to delete.
 887          */
 888         private static function deleteFiles( $files ) {
 889                 foreach ( $files as $file ) {
 890                         if ( file_exists( $file ) ) {
 891                                 unlink( $file );
 892                         }
 893                 }
 894         }
 895
 896         /**
 897          * Delete the specified directories, if they exist. Must be empty.
 898          * @param $dirs Array: full paths to directories to delete.
 899          */
 900         private static function deleteDirs( $dirs ) {
 901                 foreach ( $dirs as $dir ) {
 902                         if ( is_dir( $dir ) ) {
 903                                 rmdir( $dir );
 904                         }
 905                 }
 906         }
 907
 908         /**
 909          * "Running test $desc..."
 910          */
 911         protected function showTesting( $desc ) {
 912                 print "Running test $desc... ";
 913         }
 914
 915         /**
 916          * Print a happy success message.
 917          *
 918          * @param $desc String: the test name
 919          * @return Boolean
 920          */
 921         protected function showSuccess( $desc ) {
 922                 if ( $this->showProgress ) {
 923                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
 924                 }
 925                 return true;
 926         }
 927
 928         /**
 929          * Print a failure message and provide some explanatory output
 930          * about what went wrong if so configured.
 931          *
 932          * @param $desc String: the test name
 933          * @param $result String: expected HTML output
 934          * @param $html String: actual HTML output
 935          * @return Boolean
 936          */
 937         protected function showFailure( $desc, $result, $html ) {
 938                 if ( $this->showFailure ) {
 939                         if ( !$this->showProgress ) {
 940                                 # In quiet mode we didn't show the 'Testing' message before the
 941                                 # test, in case it succeeded. Show it now:
 942                                 $this->showTesting( $desc );
 943                         }
 944                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
 945                         if ( $this->showOutput ) {
 946                                 print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
 947                         }
 948                         if ( $this->showDiffs ) {
 949                                 print $this->quickDiff( $result, $html );
 950                                 if ( !$this->wellFormed( $html ) ) {
 951                                         print "XML error: $this->mXmlError\n";
 952                                 }
 953                         }
 954                 }
 955                 return false;
 956         }
 957
 958         /**
 959          * Run given strings through a diff and return the (colorized) output.
 960          * Requires writable /tmp directory and a 'diff' command in the PATH.
 961          *
 962          * @param $input String
 963          * @param $output String
 964          * @param $inFileTail String: tailing for the input file name
 965          * @param $outFileTail String: tailing for the output file name
 966          * @return String
 967          */
 968         protected function quickDiff( $input, $output, $inFileTail = 'expected', $outFileTail = 'actual' ) {
 969                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
 970
 971                 $infile = "$prefix-$inFileTail";
 972                 $this->dumpToFile( $input, $infile );
 973
 974                 $outfile = "$prefix-$outFileTail";
 975                 $this->dumpToFile( $output, $outfile );
 976
 977                 $diff = `diff -au $infile $outfile`;
 978                 unlink( $infile );
 979                 unlink( $outfile );
 980
 981                 return $this->colorDiff( $diff );
 982         }
 983
 984         /**
 985          * Write the given string to a file, adding a final newline.
 986          *
 987          * @param $data String
 988          * @param $filename String
 989          */
 990         private function dumpToFile( $data, $filename ) {
 991                 $file = fopen( $filename, "wt" );
 992                 fwrite( $file, $data . "\n" );
 993                 fclose( $file );
 994         }
 995
 996         /**
 997          * Colorize unified diff output if set for ANSI color output.
 998          * Subtractions are colored blue, additions red.
 999          *
1000          * @param $text String
1001          * @return String
1002          */
1003         protected function colorDiff( $text ) {
1004                 return preg_replace(
1005                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1006                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1007                                $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1008                         $text );
1009         }
1010
1011         /**
1012          * Show "Reading tests from ..."
1013          *
1014          * @param $path String
1015          */
1016         public function showRunFile( $path ) {
1017                 print $this->term->color( 1 ) .
1018                         "Reading tests from \"$path\"..." .
1019                         $this->term->reset() .
1020                         "\n";
1021         }
1022
1023         /**
1024          * Insert a temporary test article
1025          * @param $name String: the title, including any prefix
1026          * @param $text String: the article text
1027          * @param $line Integer: the input line number, for reporting errors
1028          */
1029         public function addArticle( $name, $text, $line ) {
1030                 $this->setupGlobals();
1031                 $title = Title::newFromText( $name );
1032                 if ( is_null( $title ) ) {
1033                         wfDie( "invalid title at line $line\n" );
1034                 }
1035
1036                 $aid = $title->getArticleID( GAID_FOR_UPDATE );
1037                 if ( $aid != 0 ) {
1038                         wfDie( "duplicate article '$name' at line $line\n" );
1039                 }
1040
1041                 $art = new Article( $title );
1042                 $art->doEdit( $text, '', EDIT_NEW | EDIT_DEFER_UPDATES | EDIT_AUTOSUMMARY,
1043                         false, null, false, false, '', true );
1044
1045                 $this->teardownGlobals();
1046         }
1047
1048         /**
1049          * Steal a callback function from the primary parser, save it for
1050          * application to our scary parser. If the hook is not installed,
1051          * abort processing of this file.
1052          *
1053          * @param $name String
1054          * @return Bool true if tag hook is present
1055          */
1056         public function requireHook( $name ) {
1057                 global $wgParser;
1058                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
1059                 if ( isset( $wgParser->mTagHooks[$name] ) ) {
1060                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1061                 } else {
1062                         echo "   This test suite requires the '$name' hook extension, skipping.\n";
1063                         return false;
1064                 }
1065                 return true;
1066         }
1067
1068         /**
1069          * Steal a callback function from the primary parser, save it for
1070          * application to our scary parser. If the hook is not installed,
1071          * abort processing of this file.
1072          *
1073          * @param $name String
1074          * @return Bool true if function hook is present
1075          */
1076         public function requireFunctionHook( $name ) {
1077                 global $wgParser;
1078                 $wgParser->firstCallInit( ); // make sure hooks are loaded.
1079                 if ( isset( $wgParser->mFunctionHooks[$name] ) ) {
1080                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1081                 } else {
1082                         echo "   This test suite requires the '$name' function hook extension, skipping.\n";
1083                         return false;
1084                 }
1085                 return true;
1086         }
1087
1088         /*
1089          * Run the "tidy" command on text if the $wgUseTidy
1090          * global is true
1091          *
1092          * @param $text String: the text to tidy
1093          * @return String
1094          * @static
1095          */
1096         private function tidy( $text ) {
1097                 global $wgUseTidy;
1098                 if ( $wgUseTidy ) {
1099                         $text = Parser::tidy( $text );
1100                 }
1101                 return $text;
1102         }
1103
1104         private function wellFormed( $text ) {
1105                 $html =
1106                         Sanitizer::hackDocType() .
1107                         '<html>' .
1108                         $text .
1109                         '</html>';
1110
1111                 $parser = xml_parser_create( "UTF-8" );
1112
1113                 # case folding violates XML standard, turn it off
1114                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1115
1116                 if ( !xml_parse( $parser, $html, true ) ) {
1117                         $err = xml_error_string( xml_get_error_code( $parser ) );
1118                         $position = xml_get_current_byte_index( $parser );
1119                         $fragment = $this->extractFragment( $html, $position );
1120                         $this->mXmlError = "$err at byte $position:\n$fragment";
1121                         xml_parser_free( $parser );
1122                         return false;
1123                 }
1124                 xml_parser_free( $parser );
1125                 return true;
1126         }
1127
1128         private function extractFragment( $text, $position ) {
1129                 $start = max( 0, $position - 10 );
1130                 $before = $position - $start;
1131                 $fragment = '...' .
1132                         $this->term->color( 34 ) .
1133                         substr( $text, $start, $before ) .
1134                         $this->term->color( 0 ) .
1135                         $this->term->color( 31 ) .
1136                         $this->term->color( 1 ) .
1137                         substr( $text, $position, 1 ) .
1138                         $this->term->color( 0 ) .
1139                         $this->term->color( 34 ) .
1140                         substr( $text, $position + 1, 9 ) .
1141                         $this->term->color( 0 ) .
1142                         '...';
1143                 $display = str_replace( "\n", ' ', $fragment );
1144                 $caret = '   ' .
1145                         str_repeat( ' ', $before ) .
1146                         $this->term->color( 31 ) .
1147                         '^' .
1148                         $this->term->color( 0 );
1149                 return "$display\n$caret";
1150         }
1151
1152         static function getFakeTimestamp( &$parser, &$ts ) {
1153                 $ts = 123;
1154                 return true;
1155         }
1156 }
1157
1158 class AnsiTermColorer {
1159         function __construct() {
1160         }
1161
1162         /**
1163          * Return ANSI terminal escape code for changing text attribs/color
1164          *
1165          * @param $color String: semicolon-separated list of attribute/color codes
1166          * @return String
1167          */
1168         public function color( $color ) {
1169                 global $wgCommandLineDarkBg;
1170                 $light = $wgCommandLineDarkBg ? "1;" : "0;";
1171                 return "\x1b[{$light}{$color}m";
1172         }
1173
1174         /**
1175          * Return ANSI terminal escape code for restoring default text attributes
1176          *
1177          * @return String
1178          */
1179         public function reset() {
1180                 return $this->color( 0 );
1181         }
1182 }
1183
1184 /* A colour-less terminal */
1185 class DummyTermColorer {
1186         public function color( $color ) {
1187                 return '';
1188         }
1189
1190         public function reset() {
1191                 return '';
1192         }
1193 }
1194
1195 class TestRecorder {
1196         var $parent;
1197         var $term;
1198
1199         function __construct( $parent ) {
1200                 $this->parent = $parent;
1201                 $this->term = $parent->term;
1202         }
1203
1204         function start() {
1205                 $this->total = 0;
1206                 $this->success = 0;
1207         }
1208
1209         function record( $test, $result ) {
1210                 $this->total++;
1211                 $this->success += ( $result ? 1 : 0 );
1212         }
1213
1214         function end() {
1215                 // dummy
1216         }
1217
1218         function report() {
1219                 if ( $this->total > 0 ) {
1220                         $this->reportPercentage( $this->success, $this->total );
1221                 } else {
1222                         wfDie( "No tests found.\n" );
1223                 }
1224         }
1225
1226         function reportPercentage( $success, $total ) {
1227                 $ratio = wfPercent( 100 * $success / $total );
1228                 print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";
1229                 if ( $success == $total ) {
1230                         print $this->term->color( 32 ) . "ALL TESTS PASSED!";
1231                 } else {
1232                         $failed = $total - $success ;
1233                         print $this->term->color( 31 ) . "$failed tests failed!";
1234                 }
1235                 print $this->term->reset() . "\n";
1236                 return ( $success == $total );
1237         }
1238 }
1239
1240 class DbTestPreviewer extends TestRecorder  {
1241         protected $lb;      // /< Database load balancer
1242         protected $db;      // /< Database connection to the main DB
1243         protected $curRun;  // /< run ID number for the current run
1244         protected $prevRun; // /< run ID number for the previous run, if any
1245         protected $results; // /< Result array
1246
1247         /**
1248          * This should be called before the table prefix is changed
1249          */
1250         function __construct( $parent ) {
1251                 parent::__construct( $parent );
1252                 $this->lb = wfGetLBFactory()->newMainLB();
1253                 // This connection will have the wiki's table prefix, not parsertest_
1254                 $this->db = $this->lb->getConnection( DB_MASTER );
1255         }
1256
1257         /**
1258          * Set up result recording; insert a record for the run with the date
1259          * and all that fun stuff
1260          */
1261         function start() {
1262                 parent::start();
1263
1264                 if ( ! $this->db->tableExists( 'testrun' )
1265                         or ! $this->db->tableExists( 'testitem' ) )
1266                 {
1267                         print "WARNING> `testrun` table not found in database.\n";
1268                         $this->prevRun = false;
1269                 } else {
1270                         // We'll make comparisons against the previous run later...
1271                         $this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
1272                 }
1273                 $this->results = array();
1274         }
1275
1276         function record( $test, $result ) {
1277                 parent::record( $test, $result );
1278                 $this->results[$test] = $result;
1279         }
1280
1281         function report() {
1282                 if ( $this->prevRun ) {
1283                         // f = fail, p = pass, n = nonexistent
1284                         // codes show before then after
1285                         $table = array(
1286                                 'fp' => 'previously failing test(s) now PASSING! :)',
1287                                 'pn' => 'previously PASSING test(s) removed o_O',
1288                                 'np' => 'new PASSING test(s) :)',
1289
1290                                 'pf' => 'previously passing test(s) now FAILING! :(',
1291                                 'fn' => 'previously FAILING test(s) removed O_o',
1292                                 'nf' => 'new FAILING test(s) :(',
1293                                 'ff' => 'still FAILING test(s) :(',
1294                         );
1295
1296                         $prevResults = array();
1297
1298                         $res = $this->db->select( 'testitem', array( 'ti_name', 'ti_success' ),
1299                                 array( 'ti_run' => $this->prevRun ), __METHOD__ );
1300                         foreach ( $res as $row ) {
1301                                 if ( !$this->parent->regex
1302                                         || preg_match( "/{$this->parent->regex}/i", $row->ti_name ) )
1303                                 {
1304                                         $prevResults[$row->ti_name] = $row->ti_success;
1305                                 }
1306                         }
1307
1308                         $combined = array_keys( $this->results + $prevResults );
1309
1310                         # Determine breakdown by change type
1311                         $breakdown = array();
1312                         foreach ( $combined as $test ) {
1313                                 if ( !isset( $prevResults[$test] ) ) {
1314                                         $before = 'n';
1315                                 } elseif ( $prevResults[$test] == 1 ) {
1316                                         $before = 'p';
1317                                 } else /* if ( $prevResults[$test] == 0 )*/ {
1318                                         $before = 'f';
1319                                 }
1320                                 if ( !isset( $this->results[$test] ) ) {
1321                                         $after = 'n';
1322                                 } elseif ( $this->results[$test] == 1 ) {
1323                                         $after = 'p';
1324                                 } else /*if ( $this->results[$test] == 0 ) */ {
1325                                         $after = 'f';
1326                                 }
1327                                 $code = $before . $after;
1328                                 if ( isset( $table[$code] ) ) {
1329                                         $breakdown[$code][$test] = $this->getTestStatusInfo( $test, $after );
1330                                 }
1331                         }
1332
1333                         # Write out results
1334                         foreach ( $table as $code => $label ) {
1335                                 if ( !empty( $breakdown[$code] ) ) {
1336                                         $count = count( $breakdown[$code] );
1337                                         printf( "\n%4d %s\n", $count, $label );
1338                                         foreach ( $breakdown[$code] as $differing_test_name => $statusInfo ) {
1339                                                 print "      * $differing_test_name  [$statusInfo]\n";
1340                                         }
1341                                 }
1342                         }
1343                 } else {
1344                         print "No previous test runs to compare against.\n";
1345                 }
1346                 print "\n";
1347                 parent::report();
1348         }
1349
1350         /**
1351          ** Returns a string giving information about when a test last had a status change.
1352          ** Could help to track down when regressions were introduced, as distinct from tests
1353          ** which have never passed (which are more change requests than regressions).
1354          */
1355         private function getTestStatusInfo( $testname, $after ) {
1356
1357                 // If we're looking at a test that has just been removed, then say when it first appeared.
1358                 if ( $after == 'n' ) {
1359                         $changedRun = $this->db->selectField ( 'testitem',
1360                                                                                                    'MIN(ti_run)',
1361                                                                                                    array( 'ti_name' => $testname ),
1362                                                                                                    __METHOD__ );
1363                         $appear = $this->db->selectRow ( 'testrun',
1364                                                                                          array( 'tr_date', 'tr_mw_version' ),
1365                                                                                          array( 'tr_id' => $changedRun ),
1366                                                                                          __METHOD__ );
1367                         return "First recorded appearance: "
1368                                . date( "d-M-Y H:i:s",  strtotime ( $appear->tr_date ) )
1369                                .  ", " . $appear->tr_mw_version;
1370                 }
1371
1372                 // Otherwise, this test has previous recorded results.
1373                 // See when this test last had a different result to what we're seeing now.
1374                 $conds = array(
1375                         'ti_name'    => $testname,
1376                         'ti_success' => ( $after == 'f' ? "1" : "0" ) );
1377                 if ( $this->curRun ) {
1378                         $conds[] = "ti_run != " . $this->db->addQuotes ( $this->curRun );
1379                 }
1380
1381                 $changedRun = $this->db->selectField ( 'testitem', 'MAX(ti_run)', $conds, __METHOD__ );
1382
1383                 // If no record of ever having had a different result.
1384                 if ( is_null ( $changedRun ) ) {
1385                         if ( $after == "f" ) {
1386                                 return "Has never passed";
1387                         } else {
1388                                 return "Has never failed";
1389                         }
1390                 }
1391
1392                 // Otherwise, we're looking at a test whose status has changed.
1393                 // (i.e. it used to work, but now doesn't; or used to fail, but is now fixed.)
1394                 // In this situation, give as much info as we can as to when it changed status.
1395                 $pre  = $this->db->selectRow ( 'testrun',
1396                                                                                 array( 'tr_date', 'tr_mw_version' ),
1397                                                                                 array( 'tr_id' => $changedRun ),
1398                                                                                 __METHOD__ );
1399                 $post = $this->db->selectRow ( 'testrun',
1400                                                                                 array( 'tr_date', 'tr_mw_version' ),
1401                                                                                 array( "tr_id > " . $this->db->addQuotes ( $changedRun ) ),
1402                                                                                 __METHOD__,
1403                                                                                 array( "LIMIT" => 1, "ORDER BY" => 'tr_id' )
1404                                                                          );
1405
1406                 if ( $post ) {
1407                         $postDate = date( "d-M-Y H:i:s",  strtotime ( $post->tr_date  ) ) . ", {$post->tr_mw_version}";
1408                 } else {
1409                         $postDate = 'now';
1410                 }
1411                 return ( $after == "f" ? "Introduced" : "Fixed" ) . " between "
1412                                 . date( "d-M-Y H:i:s",  strtotime ( $pre->tr_date ) ) .  ", " . $pre->tr_mw_version
1413                                 . " and $postDate";
1414
1415         }
1416
1417         /**
1418          * Commit transaction and clean up for result recording
1419          */
1420         function end() {
1421                 $this->lb->commitMasterChanges();
1422                 $this->lb->closeAll();
1423                 parent::end();
1424         }
1425
1426 }
1427
1428 class DbTestRecorder extends DbTestPreviewer  {
1429         /**
1430          * Set up result recording; insert a record for the run with the date
1431          * and all that fun stuff
1432          */
1433         function start() {
1434                 global $wgDBtype, $options;
1435                 $this->db->begin();
1436
1437                 if ( ! $this->db->tableExists( 'testrun' )
1438                         or ! $this->db->tableExists( 'testitem' ) )
1439                 {
1440                         print "WARNING> `testrun` table not found in database. Trying to create table.\n";
1441                         if ( $wgDBtype === 'postgres' )
1442                                 $this->db->sourceFile( dirname( __FILE__ ) . '/testRunner.postgres.sql' );
1443                         elseif ( $wgDBtype === 'oracle' )
1444                                 $this->db->sourceFile( dirname( __FILE__ ) . '/testRunner.ora.sql' );
1445                         else
1446                                 $this->db->sourceFile( dirname( __FILE__ ) . '/testRunner.sql' );
1447                         echo "OK, resuming.\n";
1448                 }
1449
1450                 parent::start();
1451
1452                 $this->db->insert( 'testrun',
1453                         array(
1454                                 'tr_date'        => $this->db->timestamp(),
1455                                 'tr_mw_version'  => isset( $options['setversion'] ) ?
1456                                         $options['setversion'] : SpecialVersion::getVersion(),
1457                                 'tr_php_version' => phpversion(),
1458                                 'tr_db_version'  => $this->db->getServerVersion(),
1459                                 'tr_uname'       => php_uname()
1460                         ),
1461                         __METHOD__ );
1462                         if ( $wgDBtype === 'postgres' )
1463                                 $this->curRun = $this->db->currentSequenceValue( 'testrun_id_seq' );
1464                         else
1465                                 $this->curRun = $this->db->insertId();
1466         }
1467
1468         /**
1469          * Record an individual test item's success or failure to the db
1470          *
1471          * @param $test String
1472          * @param $result Boolean
1473          */
1474         function record( $test, $result ) {
1475                 parent::record( $test, $result );
1476                 $this->db->insert( 'testitem',
1477                         array(
1478                                 'ti_run'     => $this->curRun,
1479                                 'ti_name'    => $test,
1480                                 'ti_success' => $result ? 1 : 0,
1481                         ),
1482                         __METHOD__ );
1483         }
1484 }
1485
1486 class RemoteTestRecorder extends TestRecorder {
1487         function start() {
1488                 parent::start();
1489                 $this->results = array();
1490                 $this->ping( 'running' );
1491         }
1492
1493         function record( $test, $result ) {
1494                 parent::record( $test, $result );
1495                 $this->results[$test] = (bool)$result;
1496         }
1497
1498         function end() {
1499                 $this->ping( 'complete', $this->results );
1500                 parent::end();
1501         }
1502
1503         /**
1504          * Inform a CodeReview instance that we've started or completed a test run...
1505          *
1506          * @param $status string: "running" - tell it we've started
1507          *                        "complete" - provide test results array
1508          *                        "abort" - something went horribly awry
1509          * @param $results array of test name => true/false
1510          */
1511         function ping( $status, $results = false ) {
1512                 global $wgParserTestRemote, $IP;
1513
1514                 $remote = $wgParserTestRemote;
1515                 $revId = SpecialVersion::getSvnRevision( $IP );
1516                 $jsonResults = FormatJson::encode( $results );
1517
1518                 if ( !$remote ) {
1519                         print "Can't do remote upload without configuring \$wgParserTestRemote!\n";
1520                         exit( 1 );
1521                 }
1522
1523                 // Generate a hash MAC to validate our credentials
1524                 $message = array(
1525                         $remote['repo'],
1526                         $remote['suite'],
1527                         $revId,
1528                         $status,
1529                 );
1530                 if ( $status == "complete" ) {
1531                         $message[] = $jsonResults;
1532                 }
1533                 $hmac = hash_hmac( "sha1", implode( "|", $message ), $remote['secret'] );
1534
1535                 $postData = array(
1536                         'action' => 'codetestupload',
1537                         'format' => 'json',
1538                         'repo'   => $remote['repo'],
1539                         'suite'  => $remote['suite'],
1540                         'rev'    => $revId,
1541                         'status' => $status,
1542                         'hmac'   => $hmac,
1543                 );
1544                 if ( $status == "complete" ) {
1545                         $postData['results'] = $jsonResults;
1546                 }
1547                 $response = $this->post( $remote['api-url'], $postData );
1548
1549                 if ( $response === false ) {
1550                         print "CodeReview info upload failed to reach server.\n";
1551                         exit( 1 );
1552                 }
1553                 $responseData = FormatJson::decode( $response, true );
1554                 if ( !is_array( $responseData ) ) {
1555                         print "CodeReview API response not recognized...\n";
1556                         wfDebug( "Unrecognized CodeReview API response: $response\n" );
1557                         exit( 1 );
1558                 }
1559                 if ( isset( $responseData['error'] ) ) {
1560                         $code = $responseData['error']['code'];
1561                         $info = $responseData['error']['info'];
1562                         print "CodeReview info upload failed: $code $info\n";
1563                         exit( 1 );
1564                 }
1565         }
1566
1567         function post( $url, $data ) {
1568                 return Http::post( $url, array( 'postData' => $data ) );
1569         }
1570 }
1571
1572 class TestFileIterator implements Iterator {
1573     private $file;
1574     private $fh;
1575     private $parser;
1576     private $index = 0;
1577     private $test;
1578         private $lineNum;
1579         private $eof;
1580
1581         function __construct( $file, $parser = null ) {
1582                 global $IP;
1583
1584                 $this->file = $file;
1585         $this->fh = fopen( $this->file, "rt" );
1586         if ( !$this->fh ) {
1587                         wfDie( "Couldn't open file '$file'\n" );
1588                 }
1589
1590                 $this->parser = $parser;
1591
1592                 if ( $this->parser ) $this->parser->showRunFile( wfRelativePath( $this->file, $IP ) );
1593                 $this->lineNum = $this->index = 0;
1594         }
1595
1596         function setParser( ParserTest $parser ) {
1597                 $this->parser = $parser;
1598         }
1599
1600         function rewind() {
1601                 if ( fseek( $this->fh, 0 ) ) {
1602                         wfDie( "Couldn't fseek to the start of '$this->file'\n" );
1603                 }
1604                 $this->index = -1;
1605                 $this->lineNum = 0;
1606                 $this->eof = false;
1607                 $this->next();
1608
1609                 return true;
1610     }
1611
1612     function current() {
1613                 return $this->test;
1614     }
1615
1616     function key() {
1617                 return $this->index;
1618     }
1619
1620     function next() {
1621         if ( $this->readNextTest() ) {
1622                         $this->index++;
1623                         return true;
1624                 } else {
1625                         $this->eof = true;
1626                 }
1627     }
1628
1629     function valid() {
1630                 return $this->eof != true;
1631     }
1632
1633         function readNextTest() {
1634                 $data = array();
1635                 $section = null;
1636
1637                 while ( false !== ( $line = fgets( $this->fh ) ) ) {
1638                         $this->lineNum++;
1639                         $matches = array();
1640                         if ( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
1641                                 $section = strtolower( $matches[1] );
1642                                 if ( $section == 'endarticle' ) {
1643                                         if ( !isset( $data['text'] ) ) {
1644                                                 wfDie( "'endarticle' without 'text' at line {$this->lineNum} of $this->file\n" );
1645                                         }
1646                                         if ( !isset( $data['article'] ) ) {
1647                                                 wfDie( "'endarticle' without 'article' at line {$this->lineNum} of $this->file\n" );
1648                                         }
1649                                         if ( $this->parser ) {
1650                                                 $this->parser->addArticle( $this->parser->chomp( $data['article'] ), $this->parser->chomp( $data['text'] ),
1651                                                         $this->lineNum );
1652                                         }
1653                                         $data = array();
1654                                         $section = null;
1655                                         continue;
1656                                 }
1657                                 if ( $section == 'endhooks' ) {
1658                                         if ( !isset( $data['hooks'] ) ) {
1659                                                 wfDie( "'endhooks' without 'hooks' at line {$this->lineNum} of $this->file\n" );
1660                                         }
1661                                         foreach ( explode( "\n", $data['hooks'] ) as $line ) {
1662                                                 $line = trim( $line );
1663                                                 if ( $line ) {
1664                                                         if ( $this->parser && !$this->parser->requireHook( $line ) ) {
1665                                                                 return false;
1666                                                         }
1667                                                 }
1668                                         }
1669                                         $data = array();
1670                                         $section = null;
1671                                         continue;
1672                                 }
1673                                 if ( $section == 'endfunctionhooks' ) {
1674                                         if ( !isset( $data['functionhooks'] ) ) {
1675                                                 wfDie( "'endfunctionhooks' without 'functionhooks' at line {$this->lineNum} of $this->file\n" );
1676                                         }
1677                                         foreach ( explode( "\n", $data['functionhooks'] ) as $line ) {
1678                                                 $line = trim( $line );
1679                                                 if ( $line ) {
1680                                                         if ( $this->parser && !$this->parser->requireFunctionHook( $line ) ) {
1681                                                                 return false;
1682                                                         }
1683                                                 }
1684                                         }
1685                                         $data = array();
1686                                         $section = null;
1687                                         continue;
1688                                 }
1689                                 if ( $section == 'end' ) {
1690                                         if ( !isset( $data['test'] ) ) {
1691                                                 wfDie( "'end' without 'test' at line {$this->lineNum} of $this->file\n" );
1692                                         }
1693                                         if ( !isset( $data['input'] ) ) {
1694                                                 wfDie( "'end' without 'input' at line {$this->lineNum} of $this->file\n" );
1695                                         }
1696                                         if ( !isset( $data['result'] ) ) {
1697                                                 wfDie( "'end' without 'result' at line {$this->lineNum} of $this->file\n" );
1698                                         }
1699                                         if ( !isset( $data['options'] ) ) {
1700                                                 $data['options'] = '';
1701                                         }
1702                                         if ( !isset( $data['config'] ) )
1703                                                 $data['config'] = '';
1704
1705                                         if ( $this->parser
1706                                                  && ( ( preg_match( '/\\bdisabled\\b/i', $data['options'] ) && !$this->parser->runDisabled )
1707                                                          || !preg_match( "/" . $this->parser->regex . "/i", $data['test'] ) )  ) {
1708                                                 # disabled test
1709                                                 $data = array();
1710                                                 $section = null;
1711                                                 continue;
1712                                         }
1713                                         if ( $this->parser &&
1714                                                  preg_match( '/\\bmath\\b/i', $data['options'] ) && !$this->parser->savedGlobals['wgUseTeX'] ) {
1715                                                 # don't run math tests if $wgUseTeX is set to false in LocalSettings
1716                                                 $data = array();
1717                                                 $section = null;
1718                                                 continue;
1719                                         }
1720
1721                                         if ( $this->parser ) {
1722                                                 $this->test = array(
1723                                                         'test' => $this->parser->chomp( $data['test'] ),
1724                                                         'input' => $this->parser->chomp( $data['input'] ),
1725                                                         'result' => $this->parser->chomp( $data['result'] ),
1726                                                         'options' => $this->parser->chomp( $data['options'] ),
1727                                                         'config' => $this->parser->chomp( $data['config'] ) );
1728                                         } else {
1729                                                 $this->test['test'] = $data['test'];
1730                                         }
1731                                         return true;
1732                                 }
1733                                 if ( isset ( $data[$section] ) ) {
1734                                         wfDie( "duplicate section '$section' at line {$this->lineNum} of $this->file\n" );
1735                                 }
1736                                 $data[$section] = '';
1737                                 continue;
1738                         }
1739                         if ( $section ) {
1740                                 $data[$section] .= $line;
1741                         }
1742                 }
1743                 return false;
1744         }
1745 }
1746