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 $options = array( 'quick', 'color', 'quiet', 'help', 'show-output', 'record', 'run-disabled' );
  29 $optionsWithArgs = array( 'regex', 'seed', 'setversion' );
  30
  31 if ( !defined( "NO_COMMAND_LINE" ) ) {
  32         require_once( dirname(__FILE__) . '/commandLine.inc' );
  33 }
  34 require_once( "$IP/maintenance/parserTestsParserHook.php" );
  35 require_once( "$IP/maintenance/parserTestsStaticParserHook.php" );
  36 require_once( "$IP/maintenance/parserTestsParserTime.php" );
  37
  38 /**
  39  * @ingroup Maintenance
  40  */
  41 class ParserTest {
  42         /**
  43          * boolean $color whereas output should be colorized
  44          */
  45         private $color;
  46
  47         /**
  48          * boolean $showOutput Show test output
  49          */
  50         private $showOutput;
  51
  52         /**
  53          * boolean $useTemporaryTables Use temporary tables for the temporary database
  54          */
  55         private $useTemporaryTables = true;
  56
  57         /**
  58          * boolean $databaseSetupDone True if the database has been set up
  59          */
  60         private $databaseSetupDone = false;
  61
  62         /**
  63          * string $oldTablePrefix Original table prefix
  64          */
  65         private $oldTablePrefix;
  66
  67         private $maxFuzzTestLength = 300;
  68         private $fuzzSeed = 0;
  69         private $memoryLimit = 50;
  70
  71         /**
  72          * Sets terminal colorization and diff/quick modes depending on OS and
  73          * command-line options (--color and --quick).
  74          */
  75         public function ParserTest() {
  76                 global $options;
  77
  78                 # Only colorize output if stdout is a terminal.
  79                 $this->color = !wfIsWindows() && posix_isatty(1);
  80
  81                 if( isset( $options['color'] ) ) {
  82                         switch( $options['color'] ) {
  83                         case 'no':
  84                                 $this->color = false;
  85                                 break;
  86                         case 'yes':
  87                         default:
  88                                 $this->color = true;
  89                                 break;
  90                         }
  91                 }
  92                 $this->term = $this->color
  93                         ? new AnsiTermColorer()
  94                         : new DummyTermColorer();
  95
  96                 $this->showDiffs = !isset( $options['quick'] );
  97                 $this->showProgress = !isset( $options['quiet'] );
  98                 $this->showFailure = !(
  99                         isset( $options['quiet'] )
 100                         && ( isset( $options['record'] )
 101                                 || isset( $options['compare'] ) ) ); // redundant output
 102
 103                 $this->showOutput = isset( $options['show-output'] );
 104
 105
 106                 if (isset($options['regex'])) {
 107                         if ( isset( $options['record'] ) ) {
 108                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
 109                                 unset( $options['record'] );
 110                         }
 111                         $this->regex = $options['regex'];
 112                 } else {
 113                         # Matches anything
 114                         $this->regex = '';
 115                 }
 116
 117                 if( isset( $options['record'] ) ) {
 118                         $this->recorder = new DbTestRecorder( $this );
 119                 } elseif( isset( $options['compare'] ) ) {
 120                         $this->recorder = new DbTestPreviewer( $this );
 121                 } elseif( isset( $options['upload'] ) ) {
 122                         $this->recorder = new RemoteTestRecorder( $this );
 123                 } elseif( class_exists( 'PHPUnitTestRecorder' ) ) {
 124                         $this->recorder = new PHPUnitTestRecorder( $this );
 125                 } else {
 126                         $this->recorder = new TestRecorder( $this );
 127                 }
 128                 $this->keepUploads = isset( $options['keep-uploads'] );
 129
 130                 if ( isset( $options['seed'] ) ) {
 131                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
 132                 }
 133
 134                 $this->runDisabled = isset( $options['run-disabled'] );
 135
 136                 $this->hooks = array();
 137                 $this->functionHooks = array();
 138         }
 139
 140         /**
 141          * Remove last character if it is a newline
 142          */
 143         public function chomp($s) {
 144                 if (substr($s, -1) === "\n") {
 145                         return substr($s, 0, -1);
 146                 }
 147                 else {
 148                         return $s;
 149                 }
 150         }
 151
 152         /**
 153          * Run a fuzz test series
 154          * Draw input from a set of test files
 155          */
 156         function fuzzTest( $filenames ) {
 157                 $dict = $this->getFuzzInput( $filenames );
 158                 $dictSize = strlen( $dict );
 159                 $logMaxLength = log( $this->maxFuzzTestLength );
 160                 $this->setupDatabase();
 161                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 162
 163                 $numTotal = 0;
 164                 $numSuccess = 0;
 165                 $user = new User;
 166                 $opts = ParserOptions::newFromUser( $user );
 167                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 168
 169                 while ( true ) {
 170                         // Generate test input
 171                         mt_srand( ++$this->fuzzSeed );
 172                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 173                         $input = '';
 174                         while ( strlen( $input ) < $totalLength ) {
 175                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 176                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 177                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 178                                 $input .= substr( $dict, $offset, $hairLength );
 179                         }
 180
 181                         $this->setupGlobals();
 182                         $parser = $this->getParser();
 183                         // Run the test
 184                         try {
 185                                 $parser->parse( $input, $title, $opts );
 186                                 $fail = false;
 187                         } catch ( Exception $exception ) {
 188                                 $fail = true;
 189                         }
 190
 191                         if ( $fail ) {
 192                                 echo "Test failed with seed {$this->fuzzSeed}\n";
 193                                 echo "Input:\n";
 194                                 var_dump( $input );
 195                                 echo "\n\n";
 196                                 echo "$exception\n";
 197                         } else {
 198                                 $numSuccess++;
 199                         }
 200                         $numTotal++;
 201                         $this->teardownGlobals();
 202                         $parser->__destruct();
 203
 204                         if ( $numTotal % 100 == 0 ) {
 205                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 206                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 207                                 if ( $usage > 90 ) {
 208                                         echo "Out of memory:\n";
 209                                         $memStats = $this->getMemoryBreakdown();
 210                                         foreach ( $memStats as $name => $usage ) {
 211                                                 echo "$name: $usage\n";
 212                                         }
 213                                         $this->abort();
 214                                 }
 215                         }
 216                 }
 217         }
 218
 219         /**
 220          * Get an input dictionary from a set of parser test files
 221          */
 222         function getFuzzInput( $filenames ) {
 223                 $dict = '';
 224                 foreach( $filenames as $filename ) {
 225                         $contents = file_get_contents( $filename );
 226                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 227                         foreach ( $matches[1] as $match ) {
 228                                 $dict .= $match . "\n";
 229                         }
 230                 }
 231                 return $dict;
 232         }
 233
 234         /**
 235          * Get a memory usage breakdown
 236          */
 237         function getMemoryBreakdown() {
 238                 $memStats = array();
 239                 foreach ( $GLOBALS as $name => $value ) {
 240                         $memStats['$'.$name] = strlen( serialize( $value ) );
 241                 }
 242                 $classes = get_declared_classes();
 243                 foreach ( $classes as $class ) {
 244                         $rc = new ReflectionClass( $class );
 245                         $props = $rc->getStaticProperties();
 246                         $memStats[$class] = strlen( serialize( $props ) );
 247                         $methods = $rc->getMethods();
 248                         foreach ( $methods as $method ) {
 249                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 250                         }
 251                 }
 252                 $functions = get_defined_functions();
 253                 foreach ( $functions['user'] as $function ) {
 254                         $rf = new ReflectionFunction( $function );
 255                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 256                 }
 257                 asort( $memStats );
 258                 return $memStats;
 259         }
 260
 261         function abort() {
 262                 $this->abort();
 263         }
 264
 265         /**
 266          * Run a series of tests listed in the given text files.
 267          * Each test consists of a brief description, wikitext input,
 268          * and the expected HTML output.
 269          *
 270          * Prints status updates on stdout and counts up the total
 271          * number and percentage of passed tests.
 272          *
 273          * @param $filenames Array of strings
 274          * @return Boolean: true if passed all tests, false if any tests failed.
 275          */
 276         public function runTestsFromFiles( $filenames ) {
 277                 $this->recorder->start();
 278                 $this->setupDatabase();
 279                 $ok = true;
 280                 foreach( $filenames as $filename ) {
 281                         $tests = new TestFileIterator( $filename, $this );
 282                         $ok = $this->runTests( $tests ) && $ok;
 283                 }
 284                 $this->teardownDatabase();
 285                 $this->recorder->report();
 286                 $this->recorder->end();
 287                 return $ok;
 288         }
 289
 290         function runTests($tests) {
 291                 $ok = true;
 292   foreach($tests as $i => $t) {
 293                         $result =
 294                                 $this->runTest($t['test'], $t['input'], $t['result'], $t['options'], $t['config']);
 295                         $ok = $ok && $result;
 296                         $this->recorder->record( $t['test'], $result );
 297                 }
 298                 if ( $this->showProgress ) {
 299                         print "\n";
 300                 }
 301   return $ok;
 302         }
 303
 304         /**
 305          * Get a Parser object
 306          */
 307         function getParser() {
 308                 global $wgParserConf;
 309                 $class = $wgParserConf['class'];
 310                 $parser = new $class( $wgParserConf );
 311                 foreach( $this->hooks as $tag => $callback ) {
 312                         $parser->setHook( $tag, $callback );
 313                 }
 314                 foreach( $this->functionHooks as $tag => $bits ) {
 315                         list( $callback, $flags ) = $bits;
 316                         $parser->setFunctionHook( $tag, $callback, $flags );
 317                 }
 318                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 319                 return $parser;
 320         }
 321
 322         /**
 323          * Run a given wikitext input through a freshly-constructed wiki parser,
 324          * and compare the output against the expected results.
 325          * Prints status and explanatory messages to stdout.
 326          *
 327          * @param $desc String: test's description
 328          * @param $input String: wikitext to try rendering
 329          * @param $result String: result to output
 330          * @param $opts Array: test's options
 331          * @param $config String: overrides for global variables, one per line
 332          * @return Boolean
 333          */
 334         public function runTest( $desc, $input, $result, $opts, $config ) {
 335                 if( $this->showProgress ) {
 336                         $this->showTesting( $desc );
 337                 }
 338
 339                 $opts = $this->parseOptions( $opts );
 340                 $this->setupGlobals($opts, $config);
 341
 342                 $user = new User();
 343                 $options = ParserOptions::newFromUser( $user );
 344
 345                 $m = array();
 346                 if (isset( $opts['title'] ) ) {
 347                         $titleText = $opts['title'];
 348                 }
 349                 else {
 350                         $titleText = 'Parser test';
 351                 }
 352
 353                 $noxml = isset( $opts['noxml'] );
 354                 $local = isset( $opts['local'] );
 355                 $parser = $this->getParser();
 356                 $title = Title::newFromText( $titleText );
 357
 358                 $matches = array();
 359                 if( isset( $opts['pst'] ) ) {
 360                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 361                 } elseif( isset( $opts['msg'] ) ) {
 362                         $out = $parser->transformMsg( $input, $options );
 363                 } elseif( isset( $opts['section'] ) ) {
 364                         $section = $opts['section'];
 365                         $out = $parser->getSection( $input, $section );
 366                 } elseif( isset( $opts['replace'] ) ) {
 367                         $section = $opts['replace'][0];
 368                         $replace = $opts['replace'][1];
 369                         $out = $parser->replaceSection( $input, $section, $replace );
 370                 } elseif( isset( $opts['comment'] ) ) {
 371                         $linker = $user->getSkin();
 372                         $out = $linker->formatComment( $input, $title, $local );
 373                 } elseif( isset( $opts['preload'] ) ) {
 374                         $out = $parser->getpreloadText( $input, $title, $options );
 375                 } else {
 376                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 377                         $out = $output->getText();
 378
 379                         if ( isset( $opts['showtitle'] ) ) {
 380                                 if($output->getTitleText()) $title = $output->getTitleText();
 381                                 $out = "$title\n$out";
 382                         }
 383                         if (isset( $opts['ill'] ) ) {
 384                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 385                         } elseif( isset( $opts['cat'] ) ) {
 386                                 global $wgOut;
 387                                 $wgOut->addCategoryLinks($output->getCategories());
 388                                 $cats = $wgOut->getCategoryLinks();
 389                                 if ( isset( $cats['normal'] ) ) {
 390                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 391                                 } else {
 392                                         $out = '';
 393                                 }
 394                         }
 395
 396                         $result = $this->tidy($result);
 397                 }
 398
 399
 400                 $this->teardownGlobals();
 401
 402                 if( $result === $out && ( $noxml === true || $this->wellFormed( $out ) ) ) {
 403                         return $this->showSuccess( $desc );
 404                 } else {
 405                         return $this->showFailure( $desc, $result, $out );
 406                 }
 407         }
 408
 409
 410         /**
 411          * Use a regex to find out the value of an option
 412          * @param $key String: name of option val to retrieve
 413          * @param $opts Options array to look in
 414          * @param $default Mixed: default value returned if not found
 415          */
 416         private static function getOptionValue( $key, $opts, $default ) {
 417                 $key = strtolower( $key );
 418                 if( isset( $opts[$key] ) ) {
 419                         return $opts[$key];
 420                 } else {
 421                         return $default;
 422                 }
 423         }
 424
 425         private function parseOptions( $instring ) {
 426                 $opts = array();
 427                 $lines = explode( "\n", $instring );
 428                 // foo
 429                 // foo=bar
 430                 // foo="bar baz"
 431                 // foo=[[bar baz]]
 432                 // foo=bar,"baz quux"
 433                 $regex = '/\b
 434                         ([\w-]+)                                                # Key
 435                         \b
 436                         (?:\s*
 437                                 =                                               # First sub-value
 438                                 \s*
 439                                 (
 440                                         "
 441                                                 [^"]*                   # Quoted val
 442                                         "
 443                                 |
 444                                         \[\[
 445                                                 [^]]*                   # Link target
 446                                         \]\]
 447                                 |
 448                                         [\w-]+                          # Plain word
 449                                 )
 450                                 (?:\s*
 451                                         ,                                       # Sub-vals 1..N
 452                                         \s*
 453                                         (
 454                                                 "[^"]*"                 # Quoted val
 455                                         |
 456                                                 \[\[[^]]*\]\]   # Link target
 457                                         |
 458                                                 [\w-]+                  # Plain word
 459                                         )
 460                                 )*
 461                         )?
 462                         /x';
 463
 464                 if( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 465                         foreach( $matches as $bits ) {
 466                                 $match = array_shift( $bits );
 467                                 $key = strtolower( array_shift( $bits ) );
 468                                 if( count( $bits ) == 0 ) {
 469                                         $opts[$key] = true;
 470                                 } elseif( count( $bits ) == 1 ) {
 471                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 472                                 } else {
 473                                         // Array!
 474                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 475                                 }
 476                         }
 477                 }
 478                 return $opts;
 479         }
 480
 481         private function cleanupOption( $opt ) {
 482                 if( substr( $opt, 0, 1 ) == '"' ) {
 483                         return substr( $opt, 1, -1 );
 484                 }
 485                 if( substr( $opt, 0, 2 ) == '[[' ) {
 486                         return substr( $opt, 2, -2 );
 487                 }
 488                 return $opt;
 489         }
 490
 491         /**
 492          * Set up the global variables for a consistent environment for each test.
 493          * Ideally this should replace the global configuration entirely.
 494          */
 495         private function setupGlobals($opts = '', $config = '') {
 496                 global $wgDBtype;
 497                 if( !isset( $this->uploadDir ) ) {
 498                         $this->uploadDir = $this->setupUploadDir();
 499                 }
 500
 501                 # Find out values for some special options.
 502                 $lang =
 503                         self::getOptionValue( 'language', $opts, 'en' );
 504                 $variant =
 505                         self::getOptionValue( 'variant', $opts, false );
 506                 $maxtoclevel =
 507                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 508                 $linkHolderBatchSize =
 509                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 510
 511                 $settings = array(
 512                         'wgServer' => 'http://localhost',
 513                         'wgScript' => '/index.php',
 514                         'wgScriptPath' => '/',
 515                         'wgArticlePath' => '/wiki/$1',
 516                         'wgActionPaths' => array(),
 517                         'wgLocalFileRepo' => array(
 518                                 'class' => 'LocalRepo',
 519                                 'name' => 'local',
 520                                 'directory' => $this->uploadDir,
 521                                 'url' => 'http://example.com/images',
 522                                 'hashLevels' => 2,
 523                                 'transformVia404' => false,
 524                         ),
 525                         'wgEnableUploads' => true,
 526                         'wgStyleSheetPath' => '/skins',
 527                         'wgSitename' => 'MediaWiki',
 528                         'wgServerName' => 'Britney-Spears',
 529                         'wgLanguageCode' => $lang,
 530                         'wgContLanguageCode' => $lang,
 531                         'wgDBprefix' => $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_',
 532                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 533                         'wgLang' => null,
 534                         'wgContLang' => null,
 535                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 536                         'wgMaxTocLevel' => $maxtoclevel,
 537                         'wgCapitalLinks' => true,
 538                         'wgNoFollowLinks' => true,
 539                         'wgNoFollowDomainExceptions' => array(),
 540                         'wgThumbnailScriptPath' => false,
 541                         'wgUseImageResize' => false,
 542                         'wgUseTeX' => isset( $opts['math'] ),
 543                         'wgMathDirectory' => $this->uploadDir . '/math',
 544                         'wgLocaltimezone' => 'UTC',
 545                         'wgAllowExternalImages' => true,
 546                         'wgUseTidy' => false,
 547                         'wgDefaultLanguageVariant' => $variant,
 548                         'wgVariantArticlePath' => false,
 549                         'wgGroupPermissions' => array( '*' => array(
 550                                 'createaccount' => true,
 551                                 'read'          => true,
 552                                 'edit'          => true,
 553                                 'createpage'    => true,
 554                                 'createtalk'    => true,
 555                         ) ),
 556                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 557                         'wgDefaultExternalStore' => array(),
 558                         'wgForeignFileRepos' => array(),
 559                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 560                         'wgExperimentalHtmlIds' => false,
 561                         'wgExternalLinkTarget' => false,
 562                         'wgAlwaysUseTidy' => false,
 563                         'wgHtml5' => true,
 564                         'wgWellFormedXml' => true,
 565                         'wgAllowMicrodataAttributes' => true,
 566                 );
 567
 568                 if ($config) {
 569                         $configLines = explode( "\n", $config );
 570
 571                         foreach( $configLines as $line ) {
 572                                 list( $var, $value ) = explode( '=', $line, 2 );
 573
 574                                 $settings[$var] = eval("return $value;" );
 575                         }
 576                 }
 577
 578                 $this->savedGlobals = array();
 579                 foreach( $settings as $var => $val ) {
 580                         if( array_key_exists( $var, $GLOBALS ) ) {
 581                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 582                         }
 583                         $GLOBALS[$var] = $val;
 584                 }
 585                 $langObj = Language::factory( $lang );
 586                 $GLOBALS['wgLang'] = $langObj;
 587                 $GLOBALS['wgContLang'] = $langObj;
 588                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
 589                 $GLOBALS['wgOut'] = new OutputPage;
 590
 591                 MagicWord::clearCache();
 592
 593                 global $wgUser;
 594                 $wgUser = new User();
 595         }
 596
 597         /**
 598          * List of temporary tables to create, without prefix.
 599          * Some of these probably aren't necessary.
 600          */
 601         private function listTables() {
 602                 global $wgDBtype;
 603                 $tables = array('user', 'page', 'page_restrictions',
 604                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 605                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks', 'iwlinks',
 606                         'site_stats', 'hitcounter',     'ipblocks', 'image', 'oldimage',
 607                         'recentchanges', 'watchlist', 'math', 'interwiki',
 608                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 609                         'archive', 'user_groups', 'page_props', 'category'
 610                 );
 611
 612                 if ($wgDBtype === 'mysql')
 613                         array_push( $tables, 'searchindex' );
 614
 615                 // Allow extensions to add to the list of tables to duplicate;
 616                 // may be necessary if they hook into page save or other code
 617                 // which will require them while running tests.
 618                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
 619
 620                 return $tables;
 621         }
 622
 623         /**
 624          * Set up a temporary set of wiki tables to work with for the tests.
 625          * Currently this will only be done once per run, and any changes to
 626          * the db will be visible to later tests in the run.
 627          */
 628         function setupDatabase() {
 629                 global $wgDBprefix, $wgDBtype;
 630                 if ( $this->databaseSetupDone ) {
 631                         return;
 632                 }
 633                 if ( $wgDBprefix === 'parsertest_' || ($wgDBtype == 'oracle' && $wgDBprefix === 'pt_')) {
 634                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
 635                 }
 636                 $this->databaseSetupDone = true;
 637                 $this->oldTablePrefix = $wgDBprefix;
 638
 639                 # CREATE TEMPORARY TABLE breaks if there is more than one server
 640                 # FIXME: r40209 makes temporary tables break even with just one server
 641                 # FIXME: (bug 15892); disabling the feature entirely as a temporary fix
 642                 if ( true || 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         private 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                 /*
 784                 $tables = $this->listTables();
 785                 $db = wfGetDB( DB_MASTER );
 786                 foreach ( $tables as $table ) {
 787                         $sql = $wgDBtype == 'oracle' ? "DROP TABLE pt_$table DROP CONSTRAINTS" : "DROP TABLE `parsertest_$table`";
 788                         $db->query( $sql );
 789                 }
 790                 if ($wgDBtype == 'oracle')
 791                         $db->query('BEGIN FILL_WIKI_INFO; END;');
 792                 */
 793         }
 794
 795         /**
 796          * Create a dummy uploads directory which will contain a couple
 797          * of files in order to pass existence tests.
 798          *
 799          * @return String: the directory
 800          */
 801         private function setupUploadDir() {
 802                 global $IP;
 803                 if ( $this->keepUploads ) {
 804                         $dir = wfTempDir() . '/mwParser-images';
 805                         if ( is_dir( $dir ) ) {
 806                                 return $dir;
 807                         }
 808                 } else {
 809                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 810                 }
 811
 812                 wfDebug( "Creating upload directory $dir\n" );
 813                 if ( file_exists( $dir ) ) {
 814                         wfDebug( "Already exists!\n" );
 815                         return $dir;
 816                 }
 817                 wfMkdirParents( $dir . '/3/3a' );
 818                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 819
 820                 wfMkdirParents( $dir . '/0/09' );
 821                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 822                 return $dir;
 823         }
 824
 825         /**
 826          * Restore default values and perform any necessary clean-up
 827          * after each test runs.
 828          */
 829         private function teardownGlobals() {
 830                 RepoGroup::destroySingleton();
 831                 LinkCache::singleton()->clear();
 832                 foreach( $this->savedGlobals as $var => $val ) {
 833                         $GLOBALS[$var] = $val;
 834                 }
 835                 if( isset( $this->uploadDir ) ) {
 836                         $this->teardownUploadDir( $this->uploadDir );
 837                         unset( $this->uploadDir );
 838                 }
 839         }
 840
 841         /**
 842          * Remove the dummy uploads directory
 843          */
 844         private function teardownUploadDir( $dir ) {
 845                 if ( $this->keepUploads ) {
 846                         return;
 847                 }
 848
 849                 // delete the files first, then the dirs.
 850                 self::deleteFiles(
 851                         array (
 852                                 "$dir/3/3a/Foobar.jpg",
 853                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 854                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 855                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 856                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 857
 858                                 "$dir/0/09/Bad.jpg",
 859
 860                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 861                         )
 862                 );
 863
 864                 self::deleteDirs(
 865                         array (
 866                                 "$dir/3/3a",
 867                                 "$dir/3",
 868                                 "$dir/thumb/6/65",
 869                                 "$dir/thumb/6",
 870                                 "$dir/thumb/3/3a/Foobar.jpg",
 871                                 "$dir/thumb/3/3a",
 872                                 "$dir/thumb/3",
 873
 874                                 "$dir/0/09/",
 875                                 "$dir/0/",
 876                                 "$dir/thumb",
 877                                 "$dir/math/f/a/5",
 878                                 "$dir/math/f/a",
 879                                 "$dir/math/f",
 880                                 "$dir/math",
 881                                 "$dir",
 882                         )
 883                 );
 884         }
 885
 886         /**
 887          * Delete the specified files, if they exist.
 888          * @param $files Array: full paths to files to delete.
 889          */
 890         private static function deleteFiles( $files ) {
 891                 foreach( $files as $file ) {
 892                         if( file_exists( $file ) ) {
 893                                 unlink( $file );
 894                         }
 895                 }
 896         }
 897
 898         /**
 899          * Delete the specified directories, if they exist. Must be empty.
 900          * @param $dirs Array: full paths to directories to delete.
 901          */
 902         private static function deleteDirs( $dirs ) {
 903                 foreach( $dirs as $dir ) {
 904                         if( is_dir( $dir ) ) {
 905                                 rmdir( $dir );
 906                         }
 907                 }
 908         }
 909
 910         /**
 911          * "Running test $desc..."
 912          */
 913         protected function showTesting( $desc ) {
 914                 print "Running test $desc... ";
 915         }
 916
 917         /**
 918          * Print a happy success message.
 919          *
 920          * @param $desc String: the test name
 921          * @return Boolean
 922          */
 923         protected function showSuccess( $desc ) {
 924                 if( $this->showProgress ) {
 925                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
 926                 }
 927                 return true;
 928         }
 929
 930         /**
 931          * Print a failure message and provide some explanatory output
 932          * about what went wrong if so configured.
 933          *
 934          * @param $desc String: the test name
 935          * @param $result String: expected HTML output
 936          * @param $html String: actual HTML output
 937          * @return Boolean
 938          */
 939         protected function showFailure( $desc, $result, $html ) {
 940                 if( $this->showFailure ) {
 941                         if( !$this->showProgress ) {
 942                                 # In quiet mode we didn't show the 'Testing' message before the
 943                                 # test, in case it succeeded. Show it now:
 944                                 $this->showTesting( $desc );
 945                         }
 946                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
 947                         if ( $this->showOutput ) {
 948                                 print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
 949                         }
 950                         if( $this->showDiffs ) {
 951                                 print $this->quickDiff( $result, $html );
 952                                 if( !$this->wellFormed( $html ) ) {
 953                                         print "XML error: $this->mXmlError\n";
 954                                 }
 955                         }
 956                 }
 957                 return false;
 958         }
 959
 960         /**
 961          * Run given strings through a diff and return the (colorized) output.
 962          * Requires writable /tmp directory and a 'diff' command in the PATH.
 963          *
 964          * @param $input String
 965          * @param $output String
 966          * @param $inFileTail String: tailing for the input file name
 967          * @param $outFileTail String: tailing for the output file name
 968          * @return String
 969          */
 970         protected function quickDiff( $input, $output, $inFileTail='expected', $outFileTail='actual' ) {
 971                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
 972
 973                 $infile = "$prefix-$inFileTail";
 974                 $this->dumpToFile( $input, $infile );
 975
 976                 $outfile = "$prefix-$outFileTail";
 977                 $this->dumpToFile( $output, $outfile );
 978
 979                 $diff = `diff -au $infile $outfile`;
 980                 unlink( $infile );
 981                 unlink( $outfile );
 982
 983                 return $this->colorDiff( $diff );
 984         }
 985
 986         /**
 987          * Write the given string to a file, adding a final newline.
 988          *
 989          * @param $data String
 990          * @param $filename String
 991          */
 992         private function dumpToFile( $data, $filename ) {
 993                 $file = fopen( $filename, "wt" );
 994                 fwrite( $file, $data . "\n" );
 995                 fclose( $file );
 996         }
 997
 998         /**
 999          * Colorize unified diff output if set for ANSI color output.
1000          * Subtractions are colored blue, additions red.
1001          *
1002          * @param $text String
1003          * @return String
1004          */
1005         protected function colorDiff( $text ) {
1006                 return preg_replace(
1007                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1008                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1009                                $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1010                         $text );
1011         }
1012
1013         /**
1014          * Show "Reading tests from ..."
1015          *
1016          * @param $path String
1017          */
1018         public function showRunFile( $path ){
1019                 print $this->term->color( 1 ) .
1020                         "Reading tests from \"$path\"..." .
1021                         $this->term->reset() .
1022                         "\n";
1023         }
1024
1025         /**
1026          * Insert a temporary test article
1027          * @param $name String: the title, including any prefix
1028          * @param $text String: the article text
1029          * @param $line Integer: the input line number, for reporting errors
1030          */
1031         public function addArticle($name, $text, $line) {
1032                 $this->setupGlobals();
1033                 $title = Title::newFromText( $name );
1034                 if ( is_null($title) ) {
1035                         wfDie( "invalid title at line $line\n" );
1036                 }
1037
1038                 $aid = $title->getArticleID( GAID_FOR_UPDATE );
1039                 if ($aid != 0) {
1040                         wfDie( "duplicate article '$name' at line $line\n" );
1041                 }
1042
1043                 $art = new Article($title);
1044                 $art->insertNewArticle($text, '', false, false );
1045
1046                 $this->teardownGlobals();
1047         }
1048
1049         /**
1050          * Steal a callback function from the primary parser, save it for
1051          * application to our scary parser. If the hook is not installed,
1052          * die a painful dead to warn the others.
1053          *
1054          * @param $name String
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                         wfDie( "This test suite requires the '$name' hook extension.\n" );
1063                 }
1064         }
1065
1066         /**
1067          * Steal a callback function from the primary parser, save it for
1068          * application to our scary parser. If the hook is not installed,
1069          * die a painful dead to warn the others.
1070          *
1071          * @param $name String
1072          */
1073         public function requireFunctionHook( $name ) {
1074                 global $wgParser;
1075                 $wgParser->firstCallInit( ); //make sure hooks are loaded.
1076                 if( isset( $wgParser->mFunctionHooks[$name] ) ) {
1077                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1078                 } else {
1079                         wfDie( "This test suite requires the '$name' function hook extension.\n" );
1080                 }
1081         }
1082
1083         /*
1084          * Run the "tidy" command on text if the $wgUseTidy
1085          * global is true
1086          *
1087          * @param $text String: the text to tidy
1088          * @return String
1089          * @static
1090          */
1091         private function tidy( $text ) {
1092                 global $wgUseTidy;
1093                 if ($wgUseTidy) {
1094                         $text = Parser::tidy($text);
1095                 }
1096                 return $text;
1097         }
1098
1099         private function wellFormed( $text ) {
1100                 $html =
1101                         Sanitizer::hackDocType() .
1102                         '<html>' .
1103                         $text .
1104                         '</html>';
1105
1106                 $parser = xml_parser_create( "UTF-8" );
1107
1108                 # case folding violates XML standard, turn it off
1109                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1110
1111                 if( !xml_parse( $parser, $html, true ) ) {
1112                         $err = xml_error_string( xml_get_error_code( $parser ) );
1113                         $position = xml_get_current_byte_index( $parser );
1114                         $fragment = $this->extractFragment( $html, $position );
1115                         $this->mXmlError = "$err at byte $position:\n$fragment";
1116                         xml_parser_free( $parser );
1117                         return false;
1118                 }
1119                 xml_parser_free( $parser );
1120                 return true;
1121         }
1122
1123         private function extractFragment( $text, $position ) {
1124                 $start = max( 0, $position - 10 );
1125                 $before = $position - $start;
1126                 $fragment = '...' .
1127                         $this->term->color( 34 ) .
1128                         substr( $text, $start, $before ) .
1129                         $this->term->color( 0 ) .
1130                         $this->term->color( 31 ) .
1131                         $this->term->color( 1 ) .
1132                         substr( $text, $position, 1 ) .
1133                         $this->term->color( 0 ) .
1134                         $this->term->color( 34 ) .
1135                         substr( $text, $position + 1, 9 ) .
1136                         $this->term->color( 0 ) .
1137                         '...';
1138                 $display = str_replace( "\n", ' ', $fragment );
1139                 $caret = '   ' .
1140                         str_repeat( ' ', $before ) .
1141                         $this->term->color( 31 ) .
1142                         '^' .
1143                         $this->term->color( 0 );
1144                 return "$display\n$caret";
1145         }
1146 }
1147
1148 class AnsiTermColorer {
1149         function __construct() {
1150         }
1151
1152         /**
1153          * Return ANSI terminal escape code for changing text attribs/color
1154          *
1155          * @param $color String: semicolon-separated list of attribute/color codes
1156          * @return String
1157          */
1158         public function color( $color ) {
1159                 global $wgCommandLineDarkBg;
1160                 $light = $wgCommandLineDarkBg ? "1;" : "0;";
1161                 return "\x1b[{$light}{$color}m";
1162         }
1163
1164         /**
1165          * Return ANSI terminal escape code for restoring default text attributes
1166          *
1167          * @return String
1168          */
1169         public function reset() {
1170                 return $this->color( 0 );
1171         }
1172 }
1173
1174 /* A colour-less terminal */
1175 class DummyTermColorer {
1176         public function color( $color ) {
1177                 return '';
1178         }
1179
1180         public function reset() {
1181                 return '';
1182         }
1183 }
1184
1185 class TestRecorder {
1186         var $parent;
1187         var $term;
1188
1189         function __construct( $parent ) {
1190                 $this->parent = $parent;
1191                 $this->term = $parent->term;
1192         }
1193
1194         function start() {
1195                 $this->total = 0;
1196                 $this->success = 0;
1197         }
1198
1199         function record( $test, $result ) {
1200                 $this->total++;
1201                 $this->success += ($result ? 1 : 0);
1202         }
1203
1204         function end() {
1205                 // dummy
1206         }
1207
1208         function report() {
1209                 if( $this->total > 0 ) {
1210                         $this->reportPercentage( $this->success, $this->total );
1211                 } else {
1212                         wfDie( "No tests found.\n" );
1213                 }
1214         }
1215
1216         function reportPercentage( $success, $total ) {
1217                 $ratio = wfPercent( 100 * $success / $total );
1218                 print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";
1219                 if( $success == $total ) {
1220                         print $this->term->color( 32 ) . "ALL TESTS PASSED!";
1221                 } else {
1222                         $failed = $total - $success ;
1223                         print $this->term->color( 31 ) . "$failed tests failed!";
1224                 }
1225                 print $this->term->reset() . "\n";
1226                 return ($success == $total);
1227         }
1228 }
1229
1230 class DbTestPreviewer extends TestRecorder  {
1231         protected $lb;      ///< Database load balancer
1232         protected $db;      ///< Database connection to the main DB
1233         protected $curRun;  ///< run ID number for the current run
1234         protected $prevRun; ///< run ID number for the previous run, if any
1235         protected $results; ///< Result array
1236
1237         /**
1238          * This should be called before the table prefix is changed
1239          */
1240         function __construct( $parent ) {
1241                 parent::__construct( $parent );
1242                 $this->lb = wfGetLBFactory()->newMainLB();
1243                 // This connection will have the wiki's table prefix, not parsertest_
1244                 $this->db = $this->lb->getConnection( DB_MASTER );
1245         }
1246
1247         /**
1248          * Set up result recording; insert a record for the run with the date
1249          * and all that fun stuff
1250          */
1251         function start() {
1252                 global $wgDBtype;
1253                 parent::start();
1254
1255                 if( ! $this->db->tableExists( 'testrun' )
1256                         or ! $this->db->tableExists( 'testitem' ) )
1257                 {
1258                         print "WARNING> `testrun` table not found in database.\n";
1259                         $this->prevRun = false;
1260                 } else {
1261                         // We'll make comparisons against the previous run later...
1262                         $this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
1263                 }
1264                 $this->results = array();
1265         }
1266
1267         function record( $test, $result ) {
1268                 parent::record( $test, $result );
1269                 $this->results[$test] = $result;
1270         }
1271
1272         function report() {
1273                 if( $this->prevRun ) {
1274                         // f = fail, p = pass, n = nonexistent
1275                         // codes show before then after
1276                         $table = array(
1277                                 'fp' => 'previously failing test(s) now PASSING! :)',
1278                                 'pn' => 'previously PASSING test(s) removed o_O',
1279                                 'np' => 'new PASSING test(s) :)',
1280
1281                                 'pf' => 'previously passing test(s) now FAILING! :(',
1282                                 'fn' => 'previously FAILING test(s) removed O_o',
1283                                 'nf' => 'new FAILING test(s) :(',
1284                                 'ff' => 'still FAILING test(s) :(',
1285                         );
1286
1287                         $prevResults = array();
1288
1289                         $res = $this->db->select( 'testitem', array( 'ti_name', 'ti_success' ),
1290                                 array( 'ti_run' => $this->prevRun ), __METHOD__ );
1291                         foreach ( $res as $row ) {
1292                                 if ( !$this->parent->regex
1293                                         || preg_match( "/{$this->parent->regex}/i", $row->ti_name ) )
1294                                 {
1295                                         $prevResults[$row->ti_name] = $row->ti_success;
1296                                 }
1297                         }
1298
1299                         $combined = array_keys( $this->results + $prevResults );
1300
1301                         # Determine breakdown by change type
1302                         $breakdown = array();
1303                         foreach ( $combined as $test ) {
1304                                 if ( !isset( $prevResults[$test] ) ) {
1305                                         $before = 'n';
1306                                 } elseif ( $prevResults[$test] == 1 ) {
1307                                         $before = 'p';
1308                                 } else /* if ( $prevResults[$test] == 0 )*/ {
1309                                         $before = 'f';
1310                                 }
1311                                 if ( !isset( $this->results[$test] ) ) {
1312                                         $after = 'n';
1313                                 } elseif ( $this->results[$test] == 1 ) {
1314                                         $after = 'p';
1315                                 } else /*if ( $this->results[$test] == 0 ) */ {
1316                                         $after = 'f';
1317                                 }
1318                                 $code = $before . $after;
1319                                 if ( isset( $table[$code] ) ) {
1320                                         $breakdown[$code][$test] = $this->getTestStatusInfo( $test, $after );
1321                                 }
1322                         }
1323
1324                         # Write out results
1325                         foreach ( $table as $code => $label ) {
1326                                 if( !empty( $breakdown[$code] ) ) {
1327                                         $count = count($breakdown[$code]);
1328                                         printf( "\n%4d %s\n", $count, $label );
1329                                         foreach ($breakdown[$code] as $differing_test_name => $statusInfo) {
1330                                                 print "      * $differing_test_name  [$statusInfo]\n";
1331                                         }
1332                                 }
1333                         }
1334                 } else {
1335                         print "No previous test runs to compare against.\n";
1336                 }
1337                 print "\n";
1338                 parent::report();
1339         }
1340
1341         /**
1342          ** Returns a string giving information about when a test last had a status change.
1343          ** Could help to track down when regressions were introduced, as distinct from tests
1344          ** which have never passed (which are more change requests than regressions).
1345          */
1346         private function getTestStatusInfo($testname, $after) {
1347
1348                 // If we're looking at a test that has just been removed, then say when it first appeared.
1349                 if ( $after == 'n' ) {
1350                         $changedRun = $this->db->selectField ( 'testitem',
1351                                                                                                    'MIN(ti_run)',
1352                                                                                                    array( 'ti_name' => $testname ),
1353                                                                                                    __METHOD__ );
1354                         $appear = $this->db->selectRow ( 'testrun',
1355                                                                                          array( 'tr_date', 'tr_mw_version' ),
1356                                                                                          array( 'tr_id' => $changedRun ),
1357                                                                                          __METHOD__ );
1358                         return "First recorded appearance: "
1359                                . date( "d-M-Y H:i:s",  strtotime ( $appear->tr_date ) )
1360                                .  ", " . $appear->tr_mw_version;
1361                 }
1362
1363                 // Otherwise, this test has previous recorded results.
1364                 // See when this test last had a different result to what we're seeing now.
1365                 $conds = array(
1366                         'ti_name'    => $testname,
1367                         'ti_success' => ($after == 'f' ? "1" : "0") );
1368                 if ( $this->curRun ) {
1369                         $conds[] = "ti_run != " . $this->db->addQuotes ( $this->curRun );
1370                 }
1371
1372                 $changedRun = $this->db->selectField ( 'testitem', 'MAX(ti_run)', $conds, __METHOD__ );
1373
1374                 // If no record of ever having had a different result.
1375                 if ( is_null ( $changedRun ) ) {
1376                         if ($after == "f") {
1377                                 return "Has never passed";
1378                         } else {
1379                                 return "Has never failed";
1380                         }
1381                 }
1382
1383                 // Otherwise, we're looking at a test whose status has changed.
1384                 // (i.e. it used to work, but now doesn't; or used to fail, but is now fixed.)
1385                 // In this situation, give as much info as we can as to when it changed status.
1386                 $pre  = $this->db->selectRow ( 'testrun',
1387                                                                                 array( 'tr_date', 'tr_mw_version' ),
1388                                                                                 array( 'tr_id' => $changedRun ),
1389                                                                                 __METHOD__ );
1390                 $post = $this->db->selectRow ( 'testrun',
1391                                                                                 array( 'tr_date', 'tr_mw_version' ),
1392                                                                                 array( "tr_id > " . $this->db->addQuotes ( $changedRun) ),
1393                                                                                 __METHOD__,
1394                                                                                 array( "LIMIT" => 1, "ORDER BY" => 'tr_id' )
1395                                                                          );
1396
1397                 if ( $post ) {
1398                         $postDate = date( "d-M-Y H:i:s",  strtotime ( $post->tr_date  ) ) . ", {$post->tr_mw_version}";
1399                 } else {
1400                         $postDate = 'now';
1401                 }
1402                 return ( $after == "f" ? "Introduced" : "Fixed" ) . " between "
1403                                 . date( "d-M-Y H:i:s",  strtotime ( $pre->tr_date ) ) .  ", " . $pre->tr_mw_version
1404                                 . " and $postDate";
1405
1406         }
1407
1408         /**
1409          * Commit transaction and clean up for result recording
1410          */
1411         function end() {
1412                 $this->lb->commitMasterChanges();
1413                 $this->lb->closeAll();
1414                 parent::end();
1415         }
1416
1417 }
1418
1419 class DbTestRecorder extends DbTestPreviewer  {
1420         /**
1421          * Set up result recording; insert a record for the run with the date
1422          * and all that fun stuff
1423          */
1424         function start() {
1425                 global $wgDBtype, $options;
1426                 $this->db->begin();
1427
1428                 if( ! $this->db->tableExists( 'testrun' )
1429                         or ! $this->db->tableExists( 'testitem' ) )
1430                 {
1431                         print "WARNING> `testrun` table not found in database. Trying to create table.\n";
1432                         if ($wgDBtype === 'postgres')
1433                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.postgres.sql' );
1434                         elseif ($wgDBtype === 'oracle')
1435                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.ora.sql' );
1436                         else
1437                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.sql' );
1438                         echo "OK, resuming.\n";
1439                 }
1440
1441                 parent::start();
1442
1443                 $this->db->insert( 'testrun',
1444                         array(
1445                                 'tr_date'        => $this->db->timestamp(),
1446                                 'tr_mw_version'  => isset( $options['setversion'] ) ?
1447                                         $options['setversion'] : SpecialVersion::getVersion(),
1448                                 'tr_php_version' => phpversion(),
1449                                 'tr_db_version'  => $this->db->getServerVersion(),
1450                                 'tr_uname'       => php_uname()
1451                         ),
1452                         __METHOD__ );
1453                         if ($wgDBtype === 'postgres')
1454                                 $this->curRun = $this->db->currentSequenceValue('testrun_id_seq');
1455                         else
1456                                 $this->curRun = $this->db->insertId();
1457         }
1458
1459         /**
1460          * Record an individual test item's success or failure to the db
1461          *
1462          * @param $test String
1463          * @param $result Boolean
1464          */
1465         function record( $test, $result ) {
1466                 parent::record( $test, $result );
1467                 $this->db->insert( 'testitem',
1468                         array(
1469                                 'ti_run'     => $this->curRun,
1470                                 'ti_name'    => $test,
1471                                 'ti_success' => $result ? 1 : 0,
1472                         ),
1473                         __METHOD__ );
1474         }
1475 }
1476
1477 class RemoteTestRecorder extends TestRecorder {
1478         function start() {
1479                 parent::start();
1480                 $this->results = array();
1481                 $this->ping( 'running' );
1482         }
1483
1484         function record( $test, $result ) {
1485                 parent::record( $test, $result );
1486                 $this->results[$test] = (bool)$result;
1487         }
1488
1489         function end() {
1490                 $this->ping( 'complete', $this->results );
1491                 parent::end();
1492         }
1493
1494         /**
1495          * Inform a CodeReview instance that we've started or completed a test run...
1496          *
1497          * @param $status string: "running" - tell it we've started
1498          *                        "complete" - provide test results array
1499          *                        "abort" - something went horribly awry
1500          * @param $results array of test name => true/false
1501          */
1502         function ping( $status, $results=false ) {
1503                 global $wgParserTestRemote, $IP;
1504
1505                 $remote = $wgParserTestRemote;
1506                 $revId = SpecialVersion::getSvnRevision( $IP );
1507                 $jsonResults = json_encode( $results );
1508
1509                 if( !$remote ) {
1510                         print "Can't do remote upload without configuring \$wgParserTestRemote!\n";
1511                         exit( 1 );
1512                 }
1513
1514                 // Generate a hash MAC to validate our credentials
1515                 $message = array(
1516                         $remote['repo'],
1517                         $remote['suite'],
1518                         $revId,
1519                         $status,
1520                 );
1521                 if( $status == "complete" ) {
1522                         $message[] = $jsonResults;
1523                 }
1524                 $hmac = hash_hmac( "sha1", implode( "|", $message ), $remote['secret'] );
1525
1526                 $postData = array(
1527                         'action' => 'codetestupload',
1528                         'format' => 'json',
1529                         'repo'   => $remote['repo'],
1530                         'suite'  => $remote['suite'],
1531                         'rev'    => $revId,
1532                         'status' => $status,
1533                         'hmac'   => $hmac,
1534                 );
1535                 if( $status == "complete" ) {
1536                         $postData['results'] = $jsonResults;
1537                 }
1538                 $response = $this->post( $remote['api-url'], $postData );
1539
1540                 if( $response === false ) {
1541                         print "CodeReview info upload failed to reach server.\n";
1542                         exit( 1 );
1543                 }
1544                 $responseData = FormatJson::decode( $response, true );
1545                 if( !is_array( $responseData ) ) {
1546                         print "CodeReview API response not recognized...\n";
1547                         wfDebug( "Unrecognized CodeReview API response: $response\n" );
1548                         exit( 1 );
1549                 }
1550                 if( isset( $responseData['error'] ) ) {
1551                         $code = $responseData['error']['code'];
1552                         $info = $responseData['error']['info'];
1553                         print "CodeReview info upload failed: $code $info\n";
1554                         exit( 1 );
1555                 }
1556         }
1557
1558         function post( $url, $data ) {
1559                 return Http::post( $url, array( 'postData' => $data) );
1560         }
1561 }
1562
1563 class TestFileIterator implements Iterator {
1564     private $file;
1565     private $fh;
1566     private $parser;
1567     private $index = 0;
1568     private $test;
1569         private $lineNum;
1570         private $eof;
1571
1572         function __construct( $file, $parser = null ) {
1573                 global $IP;
1574
1575                 $this->file = $file;
1576         $this->fh = fopen($this->file, "rt");
1577         if( !$this->fh ) {
1578                         wfDie( "Couldn't open file '$file'\n" );
1579                 }
1580
1581                 $this->parser = $parser;
1582
1583                 if( $this->parser ) $this->parser->showRunFile( wfRelativePath( $this->file, $IP ) );
1584                 $this->lineNum = $this->index = 0;
1585         }
1586
1587         function setParser( ParserTest $parser ) {
1588                 $this->parser = $parser;
1589         }
1590
1591         function rewind() {
1592                 if(fseek($this->fh, 0)) {
1593                         wfDie( "Couldn't fseek to the start of '$filename'\n" );
1594                 }
1595                 $this->index = 0;
1596                 $this->lineNum = 0;
1597                 $this->eof = false;
1598                 $this->readNextTest();
1599
1600                 return true;
1601     }
1602
1603     function current() {
1604                 return $this->test;
1605     }
1606
1607     function key() {
1608                 return $this->index;
1609     }
1610
1611     function next() {
1612         if($this->readNextTest()) {
1613                         $this->index++;
1614                         return true;
1615                 } else {
1616                         $this->eof = true;
1617                 }
1618     }
1619
1620     function valid() {
1621                 return $this->eof != true;
1622     }
1623
1624         function readNextTest() {
1625                 $data = array();
1626                 $section = null;
1627
1628                 while( false !== ($line = fgets( $this->fh ) ) ) {
1629                         $this->lineNum++;
1630                         $matches = array();
1631                         if( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
1632                                 $section = strtolower( $matches[1] );
1633                                 if( $section == 'endarticle') {
1634                                         if( !isset( $data['text'] ) ) {
1635                                                 wfDie( "'endarticle' without 'text' at line {$this->lineNum} of $filename\n" );
1636                                         }
1637                                         if( !isset( $data['article'] ) ) {
1638                                                 wfDie( "'endarticle' without 'article' at line {$this->lineNum} of $filename\n" );
1639                                         }
1640                                         if( $this->parser ) $this->parser->addArticle($this->parser->chomp($data['article']), $this->parser->chomp($data['text']),
1641                                                                                           $this->lineNum);
1642                                         $data = array();
1643                                         $section = null;
1644                                         continue;
1645                                 }
1646                                 if( $section == 'endhooks' ) {
1647                                         if( !isset( $data['hooks'] ) ) {
1648                                                 wfDie( "'endhooks' without 'hooks' at line {$this->lineNum} of $filename\n" );
1649                                         }
1650                                         foreach( explode( "\n", $data['hooks'] ) as $line ) {
1651                                                 $line = trim( $line );
1652                                                 if( $line ) {
1653                                                         if( $this->parser ) $this->parser->requireHook( $line );
1654                                                 }
1655                                         }
1656                                         $data = array();
1657                                         $section = null;
1658                                         continue;
1659                                 }
1660                                 if( $section == 'endfunctionhooks' ) {
1661                                         if( !isset( $data['functionhooks'] ) ) {
1662                                                 wfDie( "'endfunctionhooks' without 'functionhooks' at line {$this->lineNum} of $filename\n" );
1663                                         }
1664                                         foreach( explode( "\n", $data['functionhooks'] ) as $line ) {
1665                                                 $line = trim( $line );
1666                                                 if( $line ) {
1667                                                         if( $this->parser ) $this->parser->requireFunctionHook( $line );
1668                                                 }
1669                                         }
1670                                         $data = array();
1671                                         $section = null;
1672                                         continue;
1673                                 }
1674                                 if( $section == 'end' ) {
1675                                         if( !isset( $data['test'] ) ) {
1676                                                 wfDie( "'end' without 'test' at line {$this->lineNum} of $filename\n" );
1677                                         }
1678                                         if( !isset( $data['input'] ) ) {
1679                                                 wfDie( "'end' without 'input' at line {$this->lineNum} of $filename\n" );
1680                                         }
1681                                         if( !isset( $data['result'] ) ) {
1682                                                 wfDie( "'end' without 'result' at line {$this->lineNum} of $filename\n" );
1683                                         }
1684                                         if( !isset( $data['options'] ) ) {
1685                                                 $data['options'] = '';
1686                                         }
1687                                         if (!isset( $data['config'] ) )
1688                                                 $data['config'] = '';
1689
1690                                         if ( $this->parser && (preg_match('/\\bdisabled\\b/i', $data['options']) && !$this->parser->runDisabled)
1691                                                 || !preg_match("/{$this->parser->regex}/i", $data['test'])  ) {
1692                                                 # disabled test
1693                                                 $data = array();
1694                                                 $section = null;
1695                                                 continue;
1696                                         }
1697                                         if ( $this->parser &&
1698                                                  preg_match('/\\bmath\\b/i', $data['options']) && !$this->parser->savedGlobals['wgUseTeX'] ) {
1699                                                 # don't run math tests if $wgUseTeX is set to false in LocalSettings
1700                                                 $data = array();
1701                                                 $section = null;
1702                                                 continue;
1703                                         }
1704
1705                                         if( $this->parser ) {
1706                                                 $this->test = array(
1707                                                         'test' => $this->parser->chomp( $data['test'] ),
1708                                                         'input' => $this->parser->chomp( $data['input'] ),
1709                                                         'result' => $this->parser->chomp( $data['result'] ),
1710                                                         'options' => $this->parser->chomp( $data['options'] ),
1711                                                         'config' => $this->parser->chomp( $data['config'] ) );
1712                                         } else {
1713                                                 $this->test['test'] = $data['test'];
1714                                         }
1715                                         return true;
1716                                 }
1717                                 if ( isset ($data[$section] ) ) {
1718                                         wfDie( "duplicate section '$section' at line {$this->lineNum} of $filename\n" );
1719                                 }
1720                                 $data[$section] = '';
1721                                 continue;
1722                         }
1723                         if( $section ) {
1724                                 $data[$section] .= $line;
1725                         }
1726                 }
1727                 return false;
1728         }
1729 }