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