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 array of strings $filenames
 274          * @return bool 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         }
 302
 303         /**
 304          * Get a Parser object
 305          */
 306         function getParser() {
 307                 global $wgParserConf;
 308                 $class = $wgParserConf['class'];
 309                 $parser = new $class( $wgParserConf );
 310                 foreach( $this->hooks as $tag => $callback ) {
 311                         $parser->setHook( $tag, $callback );
 312                 }
 313                 foreach( $this->functionHooks as $tag => $bits ) {
 314                         list( $callback, $flags ) = $bits;
 315                         $parser->setFunctionHook( $tag, $callback, $flags );
 316                 }
 317                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 318                 return $parser;
 319         }
 320
 321         /**
 322          * Run a given wikitext input through a freshly-constructed wiki parser,
 323          * and compare the output against the expected results.
 324          * Prints status and explanatory messages to stdout.
 325          *
 326          * @param string $input Wikitext to try rendering
 327          * @param string $result Result to output
 328          * @return bool
 329          */
 330         public function runTest( $desc, $input, $result, $opts, $config ) {
 331                 if( $this->showProgress ) {
 332                         $this->showTesting( $desc );
 333                 }
 334
 335                 $opts = $this->parseOptions( $opts );
 336                 $this->setupGlobals($opts, $config);
 337
 338                 $user = new User();
 339                 $options = ParserOptions::newFromUser( $user );
 340
 341                 $m = array();
 342                 if (isset( $opts['title'] ) ) {
 343                         $titleText = $opts['title'];
 344                 }
 345                 else {
 346                         $titleText = 'Parser test';
 347                 }
 348
 349                 $noxml = isset( $opts['noxml'] );
 350                 $local = isset( $opts['local'] );
 351                 $parser = $this->getParser();
 352                 $title = Title::newFromText( $titleText );
 353
 354                 $matches = array();
 355                 if( isset( $opts['pst'] ) ) {
 356                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 357                 } elseif( isset( $opts['msg'] ) ) {
 358                         $out = $parser->transformMsg( $input, $options );
 359                 } elseif( isset( $opts['section'] ) ) {
 360                         $section = $opts['section'];
 361                         $out = $parser->getSection( $input, $section );
 362                 } elseif( isset( $opts['replace'] ) ) {
 363                         $section = $opts['replace'][0];
 364                         $replace = $opts['replace'][1];
 365                         $out = $parser->replaceSection( $input, $section, $replace );
 366                 } elseif( isset( $opts['comment'] ) ) {
 367                         $linker = $user->getSkin();
 368                         $out = $linker->formatComment( $input, $title, $local );
 369                 } else {
 370                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 371                         $out = $output->getText();
 372
 373                         if ( isset( $opts['showtitle'] ) ) {
 374                                 $out = $output->getTitleText() . "\n$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 name of option val to retrieve
 406          * @param $opts Options array to look in
 407          * @param $defaults 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' => $linkHolderBatchSize,
 553                         'wgExperimentalHtmlIds' => false,
 554                         'wgExternalLinkTarget' => false,
 555                         'wgAlwaysUseTidy' => false,
 556                         'wgHtml5' => true,
 557                         'wgWellFormedXml' => true,
 558                         'wgAllowMicrodataAttributes' => true,
 559                         'wgAllowDisplayTitle' => true,
 560                         'wgRestrictDisplayTitle' => false,
 561                 );
 562
 563                 if ($config) {
 564                         $configLines = explode( "\n", $config );
 565
 566                         foreach( $configLines as $line ) {
 567                                 list( $var, $value ) = explode( '=', $line, 2 );
 568
 569                                 $settings[$var] = eval("return $value;" );
 570                         }
 571                 }
 572
 573                 $this->savedGlobals = array();
 574                 foreach( $settings as $var => $val ) {
 575                         if( array_key_exists( $var, $GLOBALS ) ) {
 576                                 $this->savedGlobals[$var] = $GLOBALS[$var];
 577                         }
 578                         $GLOBALS[$var] = $val;
 579                 }
 580                 $langObj = Language::factory( $lang );
 581                 $GLOBALS['wgLang'] = $langObj;
 582                 $GLOBALS['wgContLang'] = $langObj;
 583                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
 584                 $GLOBALS['wgOut'] = new OutputPage;
 585
 586                 MagicWord::clearCache();
 587
 588                 global $wgUser;
 589                 $wgUser = new User();
 590         }
 591
 592         /**
 593          * List of temporary tables to create, without prefix.
 594          * Some of these probably aren't necessary.
 595          */
 596         private function listTables() {
 597                 global $wgDBtype;
 598                 $tables = array('user', 'page', 'page_restrictions',
 599                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 600                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks',
 601                         'site_stats', 'hitcounter',     'ipblocks', 'image', 'oldimage',
 602                         'recentchanges', 'watchlist', 'math', 'interwiki',
 603                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 604                         'archive', 'user_groups', 'page_props', 'category'
 605                 );
 606
 607                 if ($wgDBtype === 'mysql')
 608                         array_push( $tables, 'searchindex' );
 609
 610                 // Allow extensions to add to the list of tables to duplicate;
 611                 // may be necessary if they hook into page save or other code
 612                 // which will require them while running tests.
 613                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
 614
 615                 return $tables;
 616         }
 617
 618         /**
 619          * Set up a temporary set of wiki tables to work with for the tests.
 620          * Currently this will only be done once per run, and any changes to
 621          * the db will be visible to later tests in the run.
 622          */
 623         function setupDatabase() {
 624                 global $wgDBprefix, $wgDBtype;
 625                 if ( $this->databaseSetupDone ) {
 626                         return;
 627                 }
 628                 if ( $wgDBprefix === 'parsertest_' || ($wgDBtype == 'oracle' && $wgDBprefix === 'pt_')) {
 629                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
 630                 }
 631                 $this->databaseSetupDone = true;
 632                 $this->oldTablePrefix = $wgDBprefix;
 633
 634                 # CREATE TEMPORARY TABLE breaks if there is more than one server
 635                 # FIXME: r40209 makes temporary tables break even with just one server
 636                 # FIXME: (bug 15892); disabling the feature entirely as a temporary fix
 637                 if ( true || wfGetLB()->getServerCount() != 1 ) {
 638                         $this->useTemporaryTables = false;
 639                 }
 640
 641                 $temporary = $this->useTemporaryTables || $wgDBtype == 'postgres';
 642
 643                 $db = wfGetDB( DB_MASTER );
 644                 $tables = $this->listTables();
 645
 646                 foreach ( $tables as $tbl ) {
 647                         # Clean up from previous aborted run.  So that table escaping
 648                         # works correctly across DB engines, we need to change the pre-
 649                         # fix back and forth so tableName() works right.
 650                         $this->changePrefix( $this->oldTablePrefix );
 651                         $oldTableName = $db->tableName( $tbl );
 652                         $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
 653                         $newTableName = $db->tableName( $tbl );
 654
 655                         if ( $db->tableExists( $tbl ) && $wgDBtype != 'postgres' && $wgDBtype != 'oracle' ) {
 656                                 $db->query( "DROP TABLE $newTableName" );
 657                         }
 658                         # Create new table
 659                         $db->duplicateTableStructure( $oldTableName, $newTableName, $temporary );
 660                 }
 661                 if ($wgDBtype == 'oracle')
 662                         $db->query('BEGIN FILL_WIKI_INFO; END;');
 663
 664                 $this->changePrefix( $wgDBtype != 'oracle' ? 'parsertest_' : 'pt_' );
 665
 666                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 667                 # for testing inter-language links
 668                 $db->insert( 'interwiki', array(
 669                         array( 'iw_prefix' => 'wikipedia',
 670                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 671                                    'iw_local'  => 0 ),
 672                         array( 'iw_prefix' => 'meatball',
 673                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 674                                    'iw_local'  => 0 ),
 675                         array( 'iw_prefix' => 'zh',
 676                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 677                                    'iw_local'  => 1 ),
 678                         array( 'iw_prefix' => 'es',
 679                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 680                                    'iw_local'  => 1 ),
 681                         array( 'iw_prefix' => 'fr',
 682                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 683                                    'iw_local'  => 1 ),
 684                         array( 'iw_prefix' => 'ru',
 685                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 686                                    'iw_local'  => 1 ),
 687                         ) );
 688
 689
 690                 if ($wgDBtype == 'oracle') {
 691                         # Insert 0 and 1 user_ids to prevent FK violations
 692
 693                         #Anonymous user
 694                         $db->insert( 'user', array(
 695                                 'user_id'         => 0,
 696                                 'user_name'       => 'Anonymous') );
 697
 698                         # Hack-on-Hack: Insert a test user to be able to insert an image
 699                         $db->insert( 'user', array(
 700                                 'user_id'         => 1,
 701                                 'user_name'       => 'Tester') );
 702                 }
 703
 704                 # Hack: Insert an image to work with
 705                 $db->insert( 'image', array(
 706                         'img_name'        => 'Foobar.jpg',
 707                         'img_size'        => 12345,
 708                         'img_description' => 'Some lame file',
 709                         'img_user'        => 1,
 710                         'img_user_text'   => 'WikiSysop',
 711                         'img_timestamp'   => $db->timestamp( '20010115123500' ),
 712                         'img_width'       => 1941,
 713                         'img_height'      => 220,
 714                         'img_bits'        => 24,
 715                         'img_media_type'  => MEDIATYPE_BITMAP,
 716                         'img_major_mime'  => "image",
 717                         'img_minor_mime'  => "jpeg",
 718                         'img_metadata'    => serialize( array() ),
 719                         ) );
 720
 721                 # This image will be blacklisted in [[MediaWiki:Bad image list]]
 722                 $db->insert( 'image', array(
 723                         'img_name'        => 'Bad.jpg',
 724                         'img_size'        => 12345,
 725                         'img_description' => 'zomgnotcensored',
 726                         'img_user'        => 1,
 727                         'img_user_text'   => 'WikiSysop',
 728                         'img_timestamp'   => $db->timestamp( '20010115123500' ),
 729                         'img_width'       => 320,
 730                         'img_height'      => 240,
 731                         'img_bits'        => 24,
 732                         'img_media_type'  => MEDIATYPE_BITMAP,
 733                         'img_major_mime'  => "image",
 734                         'img_minor_mime'  => "jpeg",
 735                         'img_metadata'    => serialize( array() ),
 736                         ) );
 737
 738                 # Update certain things in site_stats
 739                 $db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 2, 'ss_good_articles' => 1 ) );
 740
 741                 # Reinitialise the LocalisationCache to match the database state
 742                 Language::getLocalisationCache()->unloadAll();
 743
 744                 # Make a new message cache
 745                 global $wgMessageCache, $wgMemc;
 746                 $wgMessageCache = new MessageCache( $wgMemc, true, 3600, '' );
 747         }
 748
 749         /**
 750          * Change the table prefix on all open DB connections/
 751          */
 752         protected function changePrefix( $prefix ) {
 753                 global $wgDBprefix;
 754                 wfGetLBFactory()->forEachLB( array( $this, 'changeLBPrefix' ), array( $prefix ) );
 755                 $wgDBprefix = $prefix;
 756         }
 757
 758         public function changeLBPrefix( $lb, $prefix ) {
 759                 $lb->forEachOpenConnection( array( $this, 'changeDBPrefix' ), array( $prefix ) );
 760         }
 761
 762         public function changeDBPrefix( $db, $prefix ) {
 763                 $db->tablePrefix( $prefix );
 764         }
 765
 766         private function teardownDatabase() {
 767                 global $wgDBprefix, $wgDBtype;
 768                 if ( !$this->databaseSetupDone ) {
 769                         return;
 770                 }
 771                 $this->changePrefix( $this->oldTablePrefix );
 772                 $this->databaseSetupDone = false;
 773                 if ( $this->useTemporaryTables ) {
 774                         # Don't need to do anything
 775                         return;
 776                 }
 777
 778                 /*
 779                 $tables = $this->listTables();
 780                 $db = wfGetDB( DB_MASTER );
 781                 foreach ( $tables as $table ) {
 782                         $sql = $wgDBtype == 'oracle' ? "DROP TABLE pt_$table DROP CONSTRAINTS" : "DROP TABLE `parsertest_$table`";
 783                         $db->query( $sql );
 784                 }
 785                 if ($wgDBtype == 'oracle')
 786                         $db->query('BEGIN FILL_WIKI_INFO; END;');
 787                 */
 788         }
 789
 790         /**
 791          * Create a dummy uploads directory which will contain a couple
 792          * of files in order to pass existence tests.
 793          * @return string The directory
 794          */
 795         private function setupUploadDir() {
 796                 global $IP;
 797                 if ( $this->keepUploads ) {
 798                         $dir = wfTempDir() . '/mwParser-images';
 799                         if ( is_dir( $dir ) ) {
 800                                 return $dir;
 801                         }
 802                 } else {
 803                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 804                 }
 805
 806                 wfDebug( "Creating upload directory $dir\n" );
 807                 if ( file_exists( $dir ) ) {
 808                         wfDebug( "Already exists!\n" );
 809                         return $dir;
 810                 }
 811                 wfMkdirParents( $dir . '/3/3a' );
 812                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 813
 814                 wfMkdirParents( $dir . '/0/09' );
 815                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/0/09/Bad.jpg" );
 816                 return $dir;
 817         }
 818
 819         /**
 820          * Restore default values and perform any necessary clean-up
 821          * after each test runs.
 822          */
 823         private function teardownGlobals() {
 824                 RepoGroup::destroySingleton();
 825                 LinkCache::singleton()->clear();
 826                 foreach( $this->savedGlobals as $var => $val ) {
 827                         $GLOBALS[$var] = $val;
 828                 }
 829                 if( isset( $this->uploadDir ) ) {
 830                         $this->teardownUploadDir( $this->uploadDir );
 831                         unset( $this->uploadDir );
 832                 }
 833         }
 834
 835         /**
 836          * Remove the dummy uploads directory
 837          */
 838         private function teardownUploadDir( $dir ) {
 839                 if ( $this->keepUploads ) {
 840                         return;
 841                 }
 842
 843                 // delete the files first, then the dirs.
 844                 self::deleteFiles(
 845                         array (
 846                                 "$dir/3/3a/Foobar.jpg",
 847                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 848                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 849                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 850                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 851
 852                                 "$dir/0/09/Bad.jpg",
 853
 854                                 "$dir/math/f/a/5/fa50b8b616463173474302ca3e63586b.png",
 855                         )
 856                 );
 857
 858                 self::deleteDirs(
 859                         array (
 860                                 "$dir/3/3a",
 861                                 "$dir/3",
 862                                 "$dir/thumb/6/65",
 863                                 "$dir/thumb/6",
 864                                 "$dir/thumb/3/3a/Foobar.jpg",
 865                                 "$dir/thumb/3/3a",
 866                                 "$dir/thumb/3",
 867
 868                                 "$dir/0/09/",
 869                                 "$dir/0/",
 870                                 "$dir/thumb",
 871                                 "$dir/math/f/a/5",
 872                                 "$dir/math/f/a",
 873                                 "$dir/math/f",
 874                                 "$dir/math",
 875                                 "$dir",
 876                         )
 877                 );
 878         }
 879
 880         /**
 881          * Delete the specified files, if they exist.
 882          * @param array $files full paths to files to delete.
 883          */
 884         private static function deleteFiles( $files ) {
 885                 foreach( $files as $file ) {
 886                         if( file_exists( $file ) ) {
 887                                 unlink( $file );
 888                         }
 889                 }
 890         }
 891
 892         /**
 893          * Delete the specified directories, if they exist. Must be empty.
 894          * @param array $dirs full paths to directories to delete.
 895          */
 896         private static function deleteDirs( $dirs ) {
 897                 foreach( $dirs as $dir ) {
 898                         if( is_dir( $dir ) ) {
 899                                 rmdir( $dir );
 900                         }
 901                 }
 902         }
 903
 904         /**
 905          * "Running test $desc..."
 906          */
 907         protected function showTesting( $desc ) {
 908                 print "Running test $desc... ";
 909         }
 910
 911         /**
 912          * Print a happy success message.
 913          *
 914          * @param string $desc The test name
 915          * @return bool
 916          */
 917         protected function showSuccess( $desc ) {
 918                 if( $this->showProgress ) {
 919                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
 920                 }
 921                 return true;
 922         }
 923
 924         /**
 925          * Print a failure message and provide some explanatory output
 926          * about what went wrong if so configured.
 927          *
 928          * @param string $desc The test name
 929          * @param string $result Expected HTML output
 930          * @param string $html Actual HTML output
 931          * @return bool
 932          */
 933         protected function showFailure( $desc, $result, $html ) {
 934                 if( $this->showFailure ) {
 935                         if( !$this->showProgress ) {
 936                                 # In quiet mode we didn't show the 'Testing' message before the
 937                                 # test, in case it succeeded. Show it now:
 938                                 $this->showTesting( $desc );
 939                         }
 940                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
 941                         if ( $this->showOutput ) {
 942                                 print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
 943                         }
 944                         if( $this->showDiffs ) {
 945                                 print $this->quickDiff( $result, $html );
 946                                 if( !$this->wellFormed( $html ) ) {
 947                                         print "XML error: $this->mXmlError\n";
 948                                 }
 949                         }
 950                 }
 951                 return false;
 952         }
 953
 954         /**
 955          * Run given strings through a diff and return the (colorized) output.
 956          * Requires writable /tmp directory and a 'diff' command in the PATH.
 957          *
 958          * @param string $input
 959          * @param string $output
 960          * @param string $inFileTail Tailing for the input file name
 961          * @param string $outFileTail Tailing for the output file name
 962          * @return string
 963          */
 964         protected function quickDiff( $input, $output, $inFileTail='expected', $outFileTail='actual' ) {
 965                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
 966
 967                 $infile = "$prefix-$inFileTail";
 968                 $this->dumpToFile( $input, $infile );
 969
 970                 $outfile = "$prefix-$outFileTail";
 971                 $this->dumpToFile( $output, $outfile );
 972
 973                 $diff = `diff -au $infile $outfile`;
 974                 unlink( $infile );
 975                 unlink( $outfile );
 976
 977                 return $this->colorDiff( $diff );
 978         }
 979
 980         /**
 981          * Write the given string to a file, adding a final newline.
 982          *
 983          * @param string $data
 984          * @param string $filename
 985          */
 986         private function dumpToFile( $data, $filename ) {
 987                 $file = fopen( $filename, "wt" );
 988                 fwrite( $file, $data . "\n" );
 989                 fclose( $file );
 990         }
 991
 992         /**
 993          * Colorize unified diff output if set for ANSI color output.
 994          * Subtractions are colored blue, additions red.
 995          *
 996          * @param string $text
 997          * @return string
 998          */
 999         protected function colorDiff( $text ) {
1000                 return preg_replace(
1001                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1002                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1003                                $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1004                         $text );
1005         }
1006
1007         /**
1008          * Show "Reading tests from ..."
1009          *
1010          * @param String $path
1011          */
1012         public function showRunFile( $path ){
1013                 print $this->term->color( 1 ) .
1014                         "Reading tests from \"$path\"..." .
1015                         $this->term->reset() .
1016                         "\n";
1017         }
1018
1019         /**
1020          * Insert a temporary test article
1021          * @param string $name the title, including any prefix
1022          * @param string $text the article text
1023          * @param int $line the input line number, for reporting errors
1024          */
1025         public function addArticle($name, $text, $line) {
1026                 $this->setupGlobals();
1027                 $title = Title::newFromText( $name );
1028                 if ( is_null($title) ) {
1029                         wfDie( "invalid title at line $line\n" );
1030                 }
1031
1032                 $aid = $title->getArticleID( GAID_FOR_UPDATE );
1033                 if ($aid != 0) {
1034                         wfDie( "duplicate article '$name' at line $line\n" );
1035                 }
1036
1037                 $art = new Article($title);
1038                 $art->insertNewArticle($text, '', false, false );
1039
1040                 $this->teardownGlobals();
1041         }
1042
1043         /**
1044          * Steal a callback function from the primary parser, save it for
1045          * application to our scary parser. If the hook is not installed,
1046          * die a painful dead to warn the others.
1047          * @param string $name
1048          */
1049         public function requireHook( $name ) {
1050                 global $wgParser;
1051                 $wgParser->firstCallInit( ); //make sure hooks are loaded.
1052                 if( isset( $wgParser->mTagHooks[$name] ) ) {
1053                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1054                 } else {
1055                         wfDie( "This test suite requires the '$name' hook extension.\n" );
1056                 }
1057         }
1058
1059         /**
1060          * Steal a callback function from the primary parser, save it for
1061          * application to our scary parser. If the hook is not installed,
1062          * die a painful dead to warn the others.
1063          * @param string $name
1064          */
1065         private function requireFunctionHook( $name ) {
1066                 global $wgParser;
1067                 $wgParser->firstCallInit( ); //make sure hooks are loaded.
1068                 if( isset( $wgParser->mFunctionHooks[$name] ) ) {
1069                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1070                 } else {
1071                         wfDie( "This test suite requires the '$name' function hook extension.\n" );
1072                 }
1073         }
1074
1075         /*
1076          * Run the "tidy" command on text if the $wgUseTidy
1077          * global is true
1078          *
1079          * @param string $text the text to tidy
1080          * @return string
1081          * @static
1082          */
1083         private function tidy( $text ) {
1084                 global $wgUseTidy;
1085                 if ($wgUseTidy) {
1086                         $text = Parser::tidy($text);
1087                 }
1088                 return $text;
1089         }
1090
1091         private function wellFormed( $text ) {
1092                 $html =
1093                         Sanitizer::hackDocType() .
1094                         '<html>' .
1095                         $text .
1096                         '</html>';
1097
1098                 $parser = xml_parser_create( "UTF-8" );
1099
1100                 # case folding violates XML standard, turn it off
1101                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1102
1103                 if( !xml_parse( $parser, $html, true ) ) {
1104                         $err = xml_error_string( xml_get_error_code( $parser ) );
1105                         $position = xml_get_current_byte_index( $parser );
1106                         $fragment = $this->extractFragment( $html, $position );
1107                         $this->mXmlError = "$err at byte $position:\n$fragment";
1108                         xml_parser_free( $parser );
1109                         return false;
1110                 }
1111                 xml_parser_free( $parser );
1112                 return true;
1113         }
1114
1115         private function extractFragment( $text, $position ) {
1116                 $start = max( 0, $position - 10 );
1117                 $before = $position - $start;
1118                 $fragment = '...' .
1119                         $this->term->color( 34 ) .
1120                         substr( $text, $start, $before ) .
1121                         $this->term->color( 0 ) .
1122                         $this->term->color( 31 ) .
1123                         $this->term->color( 1 ) .
1124                         substr( $text, $position, 1 ) .
1125                         $this->term->color( 0 ) .
1126                         $this->term->color( 34 ) .
1127                         substr( $text, $position + 1, 9 ) .
1128                         $this->term->color( 0 ) .
1129                         '...';
1130                 $display = str_replace( "\n", ' ', $fragment );
1131                 $caret = '   ' .
1132                         str_repeat( ' ', $before ) .
1133                         $this->term->color( 31 ) .
1134                         '^' .
1135                         $this->term->color( 0 );
1136                 return "$display\n$caret";
1137         }
1138 }
1139
1140 class AnsiTermColorer {
1141         function __construct() {
1142         }
1143
1144         /**
1145          * Return ANSI terminal escape code for changing text attribs/color
1146          *
1147          * @param string $color Semicolon-separated list of attribute/color codes
1148          * @return string
1149          */
1150         public function color( $color ) {
1151                 global $wgCommandLineDarkBg;
1152                 $light = $wgCommandLineDarkBg ? "1;" : "0;";
1153                 return "\x1b[{$light}{$color}m";
1154         }
1155
1156         /**
1157          * Return ANSI terminal escape code for restoring default text attributes
1158          *
1159          * @return string
1160          */
1161         public function reset() {
1162                 return $this->color( 0 );
1163         }
1164 }
1165
1166 /* A colour-less terminal */
1167 class DummyTermColorer {
1168         public function color( $color ) {
1169                 return '';
1170         }
1171
1172         public function reset() {
1173                 return '';
1174         }
1175 }
1176
1177 class TestRecorder {
1178         var $parent;
1179         var $term;
1180
1181         function __construct( $parent ) {
1182                 $this->parent = $parent;
1183                 $this->term = $parent->term;
1184         }
1185
1186         function start() {
1187                 $this->total = 0;
1188                 $this->success = 0;
1189         }
1190
1191         function record( $test, $result ) {
1192                 $this->total++;
1193                 $this->success += ($result ? 1 : 0);
1194         }
1195
1196         function end() {
1197                 // dummy
1198         }
1199
1200         function report() {
1201                 if( $this->total > 0 ) {
1202                         $this->reportPercentage( $this->success, $this->total );
1203                 } else {
1204                         wfDie( "No tests found.\n" );
1205                 }
1206         }
1207
1208         function reportPercentage( $success, $total ) {
1209                 $ratio = wfPercent( 100 * $success / $total );
1210                 print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";
1211                 if( $success == $total ) {
1212                         print $this->term->color( 32 ) . "ALL TESTS PASSED!";
1213                 } else {
1214                         $failed = $total - $success ;
1215                         print $this->term->color( 31 ) . "$failed tests failed!";
1216                 }
1217                 print $this->term->reset() . "\n";
1218                 return ($success == $total);
1219         }
1220 }
1221
1222 class DbTestPreviewer extends TestRecorder  {
1223         protected $lb;      ///< Database load balancer
1224         protected $db;      ///< Database connection to the main DB
1225         protected $curRun;  ///< run ID number for the current run
1226         protected $prevRun; ///< run ID number for the previous run, if any
1227         protected $results; ///< Result array
1228
1229         /**
1230          * This should be called before the table prefix is changed
1231          */
1232         function __construct( $parent ) {
1233                 parent::__construct( $parent );
1234                 $this->lb = wfGetLBFactory()->newMainLB();
1235                 // This connection will have the wiki's table prefix, not parsertest_
1236                 $this->db = $this->lb->getConnection( DB_MASTER );
1237         }
1238
1239         /**
1240          * Set up result recording; insert a record for the run with the date
1241          * and all that fun stuff
1242          */
1243         function start() {
1244                 global $wgDBtype, $wgDBprefix;
1245                 parent::start();
1246
1247                 if( ! $this->db->tableExists( 'testrun' )
1248                         or ! $this->db->tableExists( 'testitem' ) )
1249                 {
1250                         print "WARNING> `testrun` table not found in database.\n";
1251                         $this->prevRun = false;
1252                 } else {
1253                         // We'll make comparisons against the previous run later...
1254                         $this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
1255                 }
1256                 $this->results = array();
1257         }
1258
1259         function record( $test, $result ) {
1260                 parent::record( $test, $result );
1261                 $this->results[$test] = $result;
1262         }
1263
1264         function report() {
1265                 if( $this->prevRun ) {
1266                         // f = fail, p = pass, n = nonexistent
1267                         // codes show before then after
1268                         $table = array(
1269                                 'fp' => 'previously failing test(s) now PASSING! :)',
1270                                 'pn' => 'previously PASSING test(s) removed o_O',
1271                                 'np' => 'new PASSING test(s) :)',
1272
1273                                 'pf' => 'previously passing test(s) now FAILING! :(',
1274                                 'fn' => 'previously FAILING test(s) removed O_o',
1275                                 'nf' => 'new FAILING test(s) :(',
1276                                 'ff' => 'still FAILING test(s) :(',
1277                         );
1278
1279                         $prevResults = array();
1280
1281                         $res = $this->db->select( 'testitem', array( 'ti_name', 'ti_success' ),
1282                                 array( 'ti_run' => $this->prevRun ), __METHOD__ );
1283                         foreach ( $res as $row ) {
1284                                 if ( !$this->parent->regex
1285                                         || preg_match( "/{$this->parent->regex}/i", $row->ti_name ) )
1286                                 {
1287                                         $prevResults[$row->ti_name] = $row->ti_success;
1288                                 }
1289                         }
1290
1291                         $combined = array_keys( $this->results + $prevResults );
1292
1293                         # Determine breakdown by change type
1294                         $breakdown = array();
1295                         foreach ( $combined as $test ) {
1296                                 if ( !isset( $prevResults[$test] ) ) {
1297                                         $before = 'n';
1298                                 } elseif ( $prevResults[$test] == 1 ) {
1299                                         $before = 'p';
1300                                 } else /* if ( $prevResults[$test] == 0 )*/ {
1301                                         $before = 'f';
1302                                 }
1303                                 if ( !isset( $this->results[$test] ) ) {
1304                                         $after = 'n';
1305                                 } elseif ( $this->results[$test] == 1 ) {
1306                                         $after = 'p';
1307                                 } else /*if ( $this->results[$test] == 0 ) */ {
1308                                         $after = 'f';
1309                                 }
1310                                 $code = $before . $after;
1311                                 if ( isset( $table[$code] ) ) {
1312                                         $breakdown[$code][$test] = $this->getTestStatusInfo( $test, $after );
1313                                 }
1314                         }
1315
1316                         # Write out results
1317                         foreach ( $table as $code => $label ) {
1318                                 if( !empty( $breakdown[$code] ) ) {
1319                                         $count = count($breakdown[$code]);
1320                                         printf( "\n%4d %s\n", $count, $label );
1321                                         foreach ($breakdown[$code] as $differing_test_name => $statusInfo) {
1322                                                 print "      * $differing_test_name  [$statusInfo]\n";
1323                                         }
1324                                 }
1325                         }
1326                 } else {
1327                         print "No previous test runs to compare against.\n";
1328                 }
1329                 print "\n";
1330                 parent::report();
1331         }
1332
1333         /**
1334          ** Returns a string giving information about when a test last had a status change.
1335          ** Could help to track down when regressions were introduced, as distinct from tests
1336          ** which have never passed (which are more change requests than regressions).
1337          */
1338         private function getTestStatusInfo($testname, $after) {
1339
1340                 // If we're looking at a test that has just been removed, then say when it first appeared.
1341                 if ( $after == 'n' ) {
1342                         $changedRun = $this->db->selectField ( 'testitem',
1343                                                                                                    'MIN(ti_run)',
1344                                                                                                    array( 'ti_name' => $testname ),
1345                                                                                                    __METHOD__ );
1346                         $appear = $this->db->selectRow ( 'testrun',
1347                                                                                          array( 'tr_date', 'tr_mw_version' ),
1348                                                                                          array( 'tr_id' => $changedRun ),
1349                                                                                          __METHOD__ );
1350                         return "First recorded appearance: "
1351                                . date( "d-M-Y H:i:s",  strtotime ( $appear->tr_date ) )
1352                                .  ", " . $appear->tr_mw_version;
1353                 }
1354
1355                 // Otherwise, this test has previous recorded results.
1356                 // See when this test last had a different result to what we're seeing now.
1357                 $conds = array(
1358                         'ti_name'    => $testname,
1359                         'ti_success' => ($after == 'f' ? "1" : "0") );
1360                 if ( $this->curRun ) {
1361                         $conds[] = "ti_run != " . $this->db->addQuotes ( $this->curRun );
1362                 }
1363
1364                 $changedRun = $this->db->selectField ( 'testitem', 'MAX(ti_run)', $conds, __METHOD__ );
1365
1366                 // If no record of ever having had a different result.
1367                 if ( is_null ( $changedRun ) ) {
1368                         if ($after == "f") {
1369                                 return "Has never passed";
1370                         } else {
1371                                 return "Has never failed";
1372                         }
1373                 }
1374
1375                 // Otherwise, we're looking at a test whose status has changed.
1376                 // (i.e. it used to work, but now doesn't; or used to fail, but is now fixed.)
1377                 // In this situation, give as much info as we can as to when it changed status.
1378                 $pre  = $this->db->selectRow ( 'testrun',
1379                                                                                 array( 'tr_date', 'tr_mw_version' ),
1380                                                                                 array( 'tr_id' => $changedRun ),
1381                                                                                 __METHOD__ );
1382                 $post = $this->db->selectRow ( 'testrun',
1383                                                                                 array( 'tr_date', 'tr_mw_version' ),
1384                                                                                 array( "tr_id > " . $this->db->addQuotes ( $changedRun) ),
1385                                                                                 __METHOD__,
1386                                                                                 array( "LIMIT" => 1, "ORDER BY" => 'tr_id' )
1387                                                                          );
1388
1389                 if ( $post ) {
1390                         $postDate = date( "d-M-Y H:i:s",  strtotime ( $post->tr_date  ) ) . ", {$post->tr_mw_version}";
1391                 } else {
1392                         $postDate = 'now';
1393                 }
1394                 return ( $after == "f" ? "Introduced" : "Fixed" ) . " between "
1395                                 . date( "d-M-Y H:i:s",  strtotime ( $pre->tr_date ) ) .  ", " . $pre->tr_mw_version
1396                                 . " and $postDate";
1397
1398         }
1399
1400         /**
1401          * Commit transaction and clean up for result recording
1402          */
1403         function end() {
1404                 $this->lb->commitMasterChanges();
1405                 $this->lb->closeAll();
1406                 parent::end();
1407         }
1408
1409 }
1410
1411 class DbTestRecorder extends DbTestPreviewer  {
1412         /**
1413          * Set up result recording; insert a record for the run with the date
1414          * and all that fun stuff
1415          */
1416         function start() {
1417                 global $wgDBtype, $wgDBprefix, $options;
1418                 $this->db->begin();
1419
1420                 if( ! $this->db->tableExists( 'testrun' )
1421                         or ! $this->db->tableExists( 'testitem' ) )
1422                 {
1423                         print "WARNING> `testrun` table not found in database. Trying to create table.\n";
1424                         if ($wgDBtype === 'postgres')
1425                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.postgres.sql' );
1426                         elseif ($wgDBtype === 'oracle')
1427                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.ora.sql' );
1428                         else
1429                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.sql' );
1430                         echo "OK, resuming.\n";
1431                 }
1432
1433                 parent::start();
1434
1435                 $this->db->insert( 'testrun',
1436                         array(
1437                                 'tr_date'        => $this->db->timestamp(),
1438                                 'tr_mw_version'  => isset( $options['setversion'] ) ?
1439                                         $options['setversion'] : SpecialVersion::getVersion(),
1440                                 'tr_php_version' => phpversion(),
1441                                 'tr_db_version'  => $this->db->getServerVersion(),
1442                                 'tr_uname'       => php_uname()
1443                         ),
1444                         __METHOD__ );
1445                         if ($wgDBtype === 'postgres')
1446                                 $this->curRun = $this->db->currentSequenceValue('testrun_id_seq');
1447                         else
1448                                 $this->curRun = $this->db->insertId();
1449         }
1450
1451         /**
1452          * Record an individual test item's success or failure to the db
1453          * @param string $test
1454          * @param bool $result
1455          */
1456         function record( $test, $result ) {
1457                 parent::record( $test, $result );
1458                 $this->db->insert( 'testitem',
1459                         array(
1460                                 'ti_run'     => $this->curRun,
1461                                 'ti_name'    => $test,
1462                                 'ti_success' => $result ? 1 : 0,
1463                         ),
1464                         __METHOD__ );
1465         }
1466 }
1467
1468 class RemoteTestRecorder extends TestRecorder {
1469         function start() {
1470                 parent::start();
1471                 $this->results = array();
1472                 $this->ping( 'running' );
1473         }
1474
1475         function record( $test, $result ) {
1476                 parent::record( $test, $result );
1477                 $this->results[$test] = (bool)$result;
1478         }
1479
1480         function end() {
1481                 $this->ping( 'complete', $this->results );
1482                 parent::end();
1483         }
1484
1485         /**
1486          * Inform a CodeReview instance that we've started or completed a test run...
1487          * @param $remote array: info on remote target
1488          * @param $status string: "running" - tell it we've started
1489          *                        "complete" - provide test results array
1490          *                        "abort" - something went horribly awry
1491          * @param $data array of test name => true/false
1492          */
1493         function ping( $status, $results=false ) {
1494                 global $wgParserTestRemote, $IP;
1495
1496                 $remote = $wgParserTestRemote;
1497                 $revId = SpecialVersion::getSvnRevision( $IP );
1498                 $jsonResults = json_encode( $results );
1499
1500                 if( !$remote ) {
1501                         print "Can't do remote upload without configuring \$wgParserTestRemote!\n";
1502                         exit( 1 );
1503                 }
1504
1505                 // Generate a hash MAC to validate our credentials
1506                 $message = array(
1507                         $remote['repo'],
1508                         $remote['suite'],
1509                         $revId,
1510                         $status,
1511                 );
1512                 if( $status == "complete" ) {
1513                         $message[] = $jsonResults;
1514                 }
1515                 $hmac = hash_hmac( "sha1", implode( "|", $message ), $remote['secret'] );
1516
1517                 $postData = array(
1518                         'action' => 'codetestupload',
1519                         'format' => 'json',
1520                         'repo'   => $remote['repo'],
1521                         'suite'  => $remote['suite'],
1522                         'rev'    => $revId,
1523                         'status' => $status,
1524                         'hmac'   => $hmac,
1525                 );
1526                 if( $status == "complete" ) {
1527                         $postData['results'] = $jsonResults;
1528                 }
1529                 $response = $this->post( $remote['api-url'], $postData );
1530
1531                 if( $response === false ) {
1532                         print "CodeReview info upload failed to reach server.\n";
1533                         exit( 1 );
1534                 }
1535                 $responseData = json_decode( $response, true );
1536                 if( !is_array( $responseData ) ) {
1537                         print "CodeReview API response not recognized...\n";
1538                         wfDebug( "Unrecognized CodeReview API response: $response\n" );
1539                         exit( 1 );
1540                 }
1541                 if( isset( $responseData['error'] ) ) {
1542                         $code = $responseData['error']['code'];
1543                         $info = $responseData['error']['info'];
1544                         print "CodeReview info upload failed: $code $info\n";
1545                         exit( 1 );
1546                 }
1547         }
1548
1549         function post( $url, $data ) {
1550                 return Http::post( $url, array( 'postData' => $data) );
1551         }
1552 }
1553
1554 class TestFileIterator implements Iterator {
1555     private $file;
1556     private $fh;
1557     private $parser;
1558     private $index = 0;
1559     private $test;
1560         private $lineNum;
1561         private $eof;
1562
1563         function __construct( $file, $parser = null ) {
1564                 global $IP;
1565
1566                 $this->file = $file;
1567         $this->fh = fopen($this->file, "rt");
1568         if( !$this->fh ) {
1569                         wfDie( "Couldn't open file '$file'\n" );
1570                 }
1571
1572                 $this->parser = $parser;
1573
1574                 if( $this->parser ) $this->parser->showRunFile( wfRelativePath( $this->file, $IP ) );
1575                 $this->lineNum = $this->index = 0;
1576         }
1577
1578         function setParser( ParserTest $parser ) {
1579                 $this->parser = $parser;
1580         }
1581
1582         function rewind() {
1583                 if(fseek($this->fh, 0)) {
1584                         wfDie( "Couldn't fseek to the start of '$filename'\n" );
1585                 }
1586                 $this->index = 0;
1587                 $this->lineNum = 0;
1588                 $this->eof = false;
1589                 $this->readNextTest();
1590
1591                 return true;
1592     }
1593
1594     function current() {
1595                 return $this->test;
1596     }
1597
1598     function key() {
1599                 return $this->index;
1600     }
1601
1602     function next() {
1603         if($this->readNextTest()) {
1604                         $this->index++;
1605                         return true;
1606                 } else {
1607                         $this->eof = true;
1608                 }
1609     }
1610
1611     function valid() {
1612                 return $this->eof != true;
1613     }
1614
1615         function readNextTest() {
1616                 $data = array();
1617                 $section = null;
1618
1619                 while( false !== ($line = fgets( $this->fh ) ) ) {
1620                         $this->lineNum++;
1621                         $matches = array();
1622                         if( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
1623                                 $section = strtolower( $matches[1] );
1624                                 if( $section == 'endarticle') {
1625                                         if( !isset( $data['text'] ) ) {
1626                                                 wfDie( "'endarticle' without 'text' at line {$this->lineNum} of $filename\n" );
1627                                         }
1628                                         if( !isset( $data['article'] ) ) {
1629                                                 wfDie( "'endarticle' without 'article' at line {$this->lineNum} of $filename\n" );
1630                                         }
1631                                         if( $this->parser ) $this->parser->addArticle($this->parser->chomp($data['article']), $this->parser->chomp($data['text']),
1632                                                                                           $this->lineNum);
1633                                         $data = array();
1634                                         $section = null;
1635                                         continue;
1636                                 }
1637                                 if( $section == 'endhooks' ) {
1638                                         if( !isset( $data['hooks'] ) ) {
1639                                                 wfDie( "'endhooks' without 'hooks' at line {$this->lineNum} of $filename\n" );
1640                                         }
1641                                         foreach( explode( "\n", $data['hooks'] ) as $line ) {
1642                                                 $line = trim( $line );
1643                                                 if( $line ) {
1644                                                         if( $this->parser ) $this->parser->requireHook( $line );
1645                                                 }
1646                                         }
1647                                         $data = array();
1648                                         $section = null;
1649                                         continue;
1650                                 }
1651                                 if( $section == 'endfunctionhooks' ) {
1652                                         if( !isset( $data['functionhooks'] ) ) {
1653                                                 wfDie( "'endfunctionhooks' without 'functionhooks' at line {$this->lineNum} of $filename\n" );
1654                                         }
1655                                         foreach( explode( "\n", $data['functionhooks'] ) as $line ) {
1656                                                 $line = trim( $line );
1657                                                 if( $line ) {
1658                                                         if( $this->parser ) $this->parser->requireFunctionHook( $line );
1659                                                 }
1660                                         }
1661                                         $data = array();
1662                                         $section = null;
1663                                         continue;
1664                                 }
1665                                 if( $section == 'end' ) {
1666                                         if( !isset( $data['test'] ) ) {
1667                                                 wfDie( "'end' without 'test' at line {$this->lineNum} of $filename\n" );
1668                                         }
1669                                         if( !isset( $data['input'] ) ) {
1670                                                 wfDie( "'end' without 'input' at line {$this->lineNum} of $filename\n" );
1671                                         }
1672                                         if( !isset( $data['result'] ) ) {
1673                                                 wfDie( "'end' without 'result' at line {$this->lineNum} of $filename\n" );
1674                                         }
1675                                         if( !isset( $data['options'] ) ) {
1676                                                 $data['options'] = '';
1677                                         }
1678                                         if (!isset( $data['config'] ) )
1679                                                 $data['config'] = '';
1680
1681                                         if ( $this->parser && (preg_match('/\\bdisabled\\b/i', $data['options'])
1682                                                 || !preg_match("/{$this->parser->regex}/i", $data['test'])) && !$this->parser->runDisabled ) {
1683                                                 # disabled test
1684                                                 $data = array();
1685                                                 $section = null;
1686                                                 continue;
1687                                         }
1688                                         if ( $this->parser &&
1689                                                  preg_match('/\\bmath\\b/i', $data['options']) && !$this->parser->savedGlobals['wgUseTeX'] ) {
1690                                                 # don't run math tests if $wgUseTeX is set to false in LocalSettings
1691                                                 $data = array();
1692                                                 $section = null;
1693                                                 continue;
1694                                         }
1695
1696                                         if( $this->parser ) {
1697                                                 $this->test = array(
1698                                                         'test' => $this->parser->chomp( $data['test'] ),
1699                                                         'input' => $this->parser->chomp( $data['input'] ),
1700                                                         'result' => $this->parser->chomp( $data['result'] ),
1701                                                         'options' => $this->parser->chomp( $data['options'] ),
1702                                                         'config' => $this->parser->chomp( $data['config'] ) );
1703                                         } else {
1704                                                 $this->test['test'] = $data['test'];
1705                                         }
1706                                         return true;
1707                                 }
1708                                 if ( isset ($data[$section] ) ) {
1709                                         wfDie( "duplicate section '$section' at line {$this->lineNum} of $filename\n" );
1710                                 }
1711                                 $data[$section] = '';
1712                                 continue;
1713                         }
1714                         if( $section ) {
1715                                 $data[$section] .= $line;
1716                         }
1717                 }
1718                 return false;
1719         }
1720 }