maintenance/parserTests.inc

   1 <?php
   2 # Copyright (C) 2004 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 $optionsWithArgs = array( 'regex', 'seed', 'setversion' );
  30
  31 require_once( dirname(__FILE__) . '/commandLine.inc' );
  32 require_once( "$IP/maintenance/parserTestsParserHook.php" );
  33 require_once( "$IP/maintenance/parserTestsStaticParserHook.php" );
  34 require_once( "$IP/maintenance/parserTestsParserTime.php" );
  35
  36 /**
  37  * @ingroup Maintenance
  38  */
  39 class ParserTest {
  40         /**
  41          * boolean $color whereas output should be colorized
  42          */
  43         private $color;
  44
  45         /**
  46          * boolean $showOutput Show test output
  47          */
  48         private $showOutput;
  49
  50         /**
  51          * boolean $useTemporaryTables Use temporary tables for the temporary database
  52          */
  53         private $useTemporaryTables = true;
  54
  55         /**
  56          * boolean $databaseSetupDone True if the database has been set up
  57          */
  58         private $databaseSetupDone = false;
  59
  60         /**
  61          * string $oldTablePrefix Original table prefix
  62          */
  63         private $oldTablePrefix;
  64
  65         private $maxFuzzTestLength = 300;
  66         private $fuzzSeed = 0;
  67         private $memoryLimit = 50;
  68
  69         /**
  70          * Sets terminal colorization and diff/quick modes depending on OS and
  71          * command-line options (--color and --quick).
  72          */
  73         public function ParserTest() {
  74                 global $options;
  75
  76                 # Only colorize output if stdout is a terminal.
  77                 $this->color = !wfIsWindows() && posix_isatty(1);
  78
  79                 if( isset( $options['color'] ) ) {
  80                         switch( $options['color'] ) {
  81                         case 'no':
  82                                 $this->color = false;
  83                                 break;
  84                         case 'yes':
  85                         default:
  86                                 $this->color = true;
  87                                 break;
  88                         }
  89                 }
  90                 $this->term = $this->color
  91                         ? new AnsiTermColorer()
  92                         : new DummyTermColorer();
  93
  94                 $this->showDiffs = !isset( $options['quick'] );
  95                 $this->showProgress = !isset( $options['quiet'] );
  96                 $this->showFailure = !(
  97                         isset( $options['quiet'] )
  98                         && ( isset( $options['record'] )
  99                                 || isset( $options['compare'] ) ) ); // redundant output
 100
 101                 $this->showOutput = isset( $options['show-output'] );
 102
 103
 104                 if (isset($options['regex'])) {
 105                         if ( isset( $options['record'] ) ) {
 106                                 echo "Warning: --record cannot be used with --regex, disabling --record\n";
 107                                 unset( $options['record'] );
 108                         }
 109                         $this->regex = $options['regex'];
 110                 } else {
 111                         # Matches anything
 112                         $this->regex = '';
 113                 }
 114
 115                 if( isset( $options['record'] ) ) {
 116                         $this->recorder = new DbTestRecorder( $this );
 117                 } elseif( isset( $options['compare'] ) ) {
 118                         $this->recorder = new DbTestPreviewer( $this );
 119                 } elseif( isset( $options['upload'] ) ) {
 120                         $this->recorder = new RemoteTestRecorder( $this );
 121                 } else {
 122                         $this->recorder = new TestRecorder( $this );
 123                 }
 124                 $this->keepUploads = isset( $options['keep-uploads'] );
 125
 126                 if ( isset( $options['seed'] ) ) {
 127                         $this->fuzzSeed = intval( $options['seed'] ) - 1;
 128                 }
 129
 130                 $this->runDisabled = isset( $options['run-disabled'] );
 131
 132                 $this->hooks = array();
 133                 $this->functionHooks = array();
 134         }
 135
 136         /**
 137          * Remove last character if it is a newline
 138          */
 139         private function chomp($s) {
 140                 if (substr($s, -1) === "\n") {
 141                         return substr($s, 0, -1);
 142                 }
 143                 else {
 144                         return $s;
 145                 }
 146         }
 147
 148         /**
 149          * Run a fuzz test series
 150          * Draw input from a set of test files
 151          */
 152         function fuzzTest( $filenames ) {
 153                 $dict = $this->getFuzzInput( $filenames );
 154                 $dictSize = strlen( $dict );
 155                 $logMaxLength = log( $this->maxFuzzTestLength );
 156                 $this->setupDatabase();
 157                 ini_set( 'memory_limit', $this->memoryLimit * 1048576 );
 158
 159                 $numTotal = 0;
 160                 $numSuccess = 0;
 161                 $user = new User;
 162                 $opts = ParserOptions::newFromUser( $user );
 163                 $title = Title::makeTitle( NS_MAIN, 'Parser_test' );
 164
 165                 while ( true ) {
 166                         // Generate test input
 167                         mt_srand( ++$this->fuzzSeed );
 168                         $totalLength = mt_rand( 1, $this->maxFuzzTestLength );
 169                         $input = '';
 170                         while ( strlen( $input ) < $totalLength ) {
 171                                 $logHairLength = mt_rand( 0, 1000000 ) / 1000000 * $logMaxLength;
 172                                 $hairLength = min( intval( exp( $logHairLength ) ), $dictSize );
 173                                 $offset = mt_rand( 0, $dictSize - $hairLength );
 174                                 $input .= substr( $dict, $offset, $hairLength );
 175                         }
 176
 177                         $this->setupGlobals();
 178                         $parser = $this->getParser();
 179                         // Run the test
 180                         try {
 181                                 $parser->parse( $input, $title, $opts );
 182                                 $fail = false;
 183                         } catch ( Exception $exception ) {
 184                                 $fail = true;
 185                         }
 186
 187                         if ( $fail ) {
 188                                 echo "Test failed with seed {$this->fuzzSeed}\n";
 189                                 echo "Input:\n";
 190                                 var_dump( $input );
 191                                 echo "\n\n";
 192                                 echo "$exception\n";
 193                         } else {
 194                                 $numSuccess++;
 195                         }
 196                         $numTotal++;
 197                         $this->teardownGlobals();
 198                         $parser->__destruct();
 199
 200                         if ( $numTotal % 100 == 0 ) {
 201                                 $usage = intval( memory_get_usage( true ) / $this->memoryLimit / 1048576 * 100 );
 202                                 echo "{$this->fuzzSeed}: $numSuccess/$numTotal (mem: $usage%)\n";
 203                                 if ( $usage > 90 ) {
 204                                         echo "Out of memory:\n";
 205                                         $memStats = $this->getMemoryBreakdown();
 206                                         foreach ( $memStats as $name => $usage ) {
 207                                                 echo "$name: $usage\n";
 208                                         }
 209                                         $this->abort();
 210                                 }
 211                         }
 212                 }
 213         }
 214
 215         /**
 216          * Get an input dictionary from a set of parser test files
 217          */
 218         function getFuzzInput( $filenames ) {
 219                 $dict = '';
 220                 foreach( $filenames as $filename ) {
 221                         $contents = file_get_contents( $filename );
 222                         preg_match_all( '/!!\s*input\n(.*?)\n!!\s*result/s', $contents, $matches );
 223                         foreach ( $matches[1] as $match ) {
 224                                 $dict .= $match . "\n";
 225                         }
 226                 }
 227                 return $dict;
 228         }
 229
 230         /**
 231          * Get a memory usage breakdown
 232          */
 233         function getMemoryBreakdown() {
 234                 $memStats = array();
 235                 foreach ( $GLOBALS as $name => $value ) {
 236                         $memStats['$'.$name] = strlen( serialize( $value ) );
 237                 }
 238                 $classes = get_declared_classes();
 239                 foreach ( $classes as $class ) {
 240                         $rc = new ReflectionClass( $class );
 241                         $props = $rc->getStaticProperties();
 242                         $memStats[$class] = strlen( serialize( $props ) );
 243                         $methods = $rc->getMethods();
 244                         foreach ( $methods as $method ) {
 245                                 $memStats[$class] += strlen( serialize( $method->getStaticVariables() ) );
 246                         }
 247                 }
 248                 $functions = get_defined_functions();
 249                 foreach ( $functions['user'] as $function ) {
 250                         $rf = new ReflectionFunction( $function );
 251                         $memStats["$function()"] = strlen( serialize( $rf->getStaticVariables() ) );
 252                 }
 253                 asort( $memStats );
 254                 return $memStats;
 255         }
 256
 257         function abort() {
 258                 $this->abort();
 259         }
 260
 261         /**
 262          * Run a series of tests listed in the given text files.
 263          * Each test consists of a brief description, wikitext input,
 264          * and the expected HTML output.
 265          *
 266          * Prints status updates on stdout and counts up the total
 267          * number and percentage of passed tests.
 268          *
 269          * @param array of strings $filenames
 270          * @return bool True if passed all tests, false if any tests failed.
 271          */
 272         public function runTestsFromFiles( $filenames ) {
 273                 $this->recorder->start();
 274                 $this->setupDatabase();
 275                 $ok = true;
 276                 foreach( $filenames as $filename ) {
 277                         $ok = $this->runFile( $filename ) && $ok;
 278                 }
 279                 $this->teardownDatabase();
 280                 $this->recorder->report();
 281                 $this->recorder->end();
 282                 return $ok;
 283         }
 284
 285         private function runFile( $filename ) {
 286                 $infile = fopen( $filename, 'rt' );
 287                 if( !$infile ) {
 288                         wfDie( "Couldn't open file '$filename'\n" );
 289                 } else {
 290                         global $IP;
 291                         $relative = wfRelativePath( $filename, $IP );
 292                         $this->showRunFile( $relative );
 293                 }
 294
 295                 $data = array();
 296                 $section = null;
 297                 $n = 0;
 298                 $ok = true;
 299                 while( false !== ($line = fgets( $infile ) ) ) {
 300                         $n++;
 301                         $matches = array();
 302                         if( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
 303                                 $section = strtolower( $matches[1] );
 304                                 if( $section == 'endarticle') {
 305                                         if( !isset( $data['text'] ) ) {
 306                                                 wfDie( "'endarticle' without 'text' at line $n of $filename\n" );
 307                                         }
 308                                         if( !isset( $data['article'] ) ) {
 309                                                 wfDie( "'endarticle' without 'article' at line $n of $filename\n" );
 310                                         }
 311                                         $this->addArticle($this->chomp($data['article']), $this->chomp($data['text']), $n);
 312                                         $data = array();
 313                                         $section = null;
 314                                         continue;
 315                                 }
 316                                 if( $section == 'endhooks' ) {
 317                                         if( !isset( $data['hooks'] ) ) {
 318                                                 wfDie( "'endhooks' without 'hooks' at line $n of $filename\n" );
 319                                         }
 320                                         foreach( explode( "\n", $data['hooks'] ) as $line ) {
 321                                                 $line = trim( $line );
 322                                                 if( $line ) {
 323                                                         $this->requireHook( $line );
 324                                                 }
 325                                         }
 326                                         $data = array();
 327                                         $section = null;
 328                                         continue;
 329                                 }
 330                                 if( $section == 'endfunctionhooks' ) {
 331                                         if( !isset( $data['functionhooks'] ) ) {
 332                                                 wfDie( "'endfunctionhooks' without 'functionhooks' at line $n of $filename\n" );
 333                                         }
 334                                         foreach( explode( "\n", $data['functionhooks'] ) as $line ) {
 335                                                 $line = trim( $line );
 336                                                 if( $line ) {
 337                                                         $this->requireFunctionHook( $line );
 338                                                 }
 339                                         }
 340                                         $data = array();
 341                                         $section = null;
 342                                         continue;
 343                                 }
 344                                 if( $section == 'end' ) {
 345                                         if( !isset( $data['test'] ) ) {
 346                                                 wfDie( "'end' without 'test' at line $n of $filename\n" );
 347                                         }
 348                                         if( !isset( $data['input'] ) ) {
 349                                                 wfDie( "'end' without 'input' at line $n of $filename\n" );
 350                                         }
 351                                         if( !isset( $data['result'] ) ) {
 352                                                 wfDie( "'end' without 'result' at line $n of $filename\n" );
 353                                         }
 354                                         if( !isset( $data['options'] ) ) {
 355                                                 $data['options'] = '';
 356                                         }
 357                                         else {
 358                                                 $data['options'] = $this->chomp( $data['options'] );
 359                                         }
 360                                         if (!isset( $data['config'] ) )
 361                                                 $data['config'] = '';
 362
 363                                         if ( (preg_match('/\\bdisabled\\b/i', $data['options'])
 364                                                 || !preg_match("/{$this->regex}/i", $data['test'])) && !$this->runDisabled ) {
 365                                                 # disabled test
 366                                                 $data = array();
 367                                                 $section = null;
 368                                                 continue;
 369                                         }
 370                                         $result = $this->runTest(
 371                                                 $this->chomp( $data['test'] ),
 372                                                 $this->chomp( $data['input'] ),
 373                                                 $this->chomp( $data['result'] ),
 374                                                 $this->chomp( $data['options'] ),
 375                                                 $this->chomp( $data['config']   )
 376                                                 );
 377                                         $ok = $ok && $result;
 378                                         $this->recorder->record( $this->chomp( $data['test'] ), $result );
 379                                         $data = array();
 380                                         $section = null;
 381                                         continue;
 382                                 }
 383                                 if ( isset ($data[$section] ) ) {
 384                                         wfDie( "duplicate section '$section' at line $n of $filename\n" );
 385                                 }
 386                                 $data[$section] = '';
 387                                 continue;
 388                         }
 389                         if( $section ) {
 390                                 $data[$section] .= $line;
 391                         }
 392                 }
 393                 if ( $this->showProgress ) {
 394                         print "\n";
 395                 }
 396                 return $ok;
 397         }
 398
 399         /**
 400          * Get a Parser object
 401          */
 402         function getParser() {
 403                 global $wgParserConf;
 404                 $class = $wgParserConf['class'];
 405                 $parser = new $class( $wgParserConf );
 406                 foreach( $this->hooks as $tag => $callback ) {
 407                         $parser->setHook( $tag, $callback );
 408                 }
 409                 foreach( $this->functionHooks as $tag => $bits ) {
 410                         list( $callback, $flags ) = $bits;
 411                         $parser->setFunctionHook( $tag, $callback, $flags );
 412                 }
 413                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 414                 return $parser;
 415         }
 416
 417         /**
 418          * Run a given wikitext input through a freshly-constructed wiki parser,
 419          * and compare the output against the expected results.
 420          * Prints status and explanatory messages to stdout.
 421          *
 422          * @param string $input Wikitext to try rendering
 423          * @param string $result Result to output
 424          * @return bool
 425          */
 426         private function runTest( $desc, $input, $result, $opts, $config ) {
 427                 if( $this->showProgress ) {
 428                         $this->showTesting( $desc );
 429                 }
 430
 431                 $opts = $this->parseOptions( $opts );
 432                 $this->setupGlobals($opts, $config);
 433
 434                 $user = new User();
 435                 $options = ParserOptions::newFromUser( $user );
 436
 437                 if ( isset( $opts['math'] ) ) {
 438                         # XXX this should probably be done by the ParserOptions
 439                         $options->setUseTex(true);
 440                 }
 441
 442                 $m = array();
 443                 if (isset( $opts['title'] ) ) {
 444                         $titleText = $opts['title'];
 445                 }
 446                 else {
 447                         $titleText = 'Parser test';
 448                 }
 449
 450                 $noxml = isset( $opts['noxml'] );
 451                 $local = isset( $opts['local'] );
 452                 $parser = $this->getParser();
 453                 $title = Title::newFromText( $titleText );
 454
 455                 $matches = array();
 456                 if( isset( $opts['pst'] ) ) {
 457                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 458                 } elseif( isset( $opts['msg'] ) ) {
 459                         $out = $parser->transformMsg( $input, $options );
 460                 } elseif( isset( $opts['section'] ) ) {
 461                         $section = $opts['section'];
 462                         $out = $parser->getSection( $input, $section );
 463                 } elseif( isset( $opts['replace'] ) ) {
 464                         $section = $opts['replace'][0];
 465                         $replace = $opts['replace'][1];
 466                         $out = $parser->replaceSection( $input, $section, $replace );
 467                 } elseif( isset( $opts['comment'] ) ) {
 468                         $linker = $user->getSkin();
 469                         $out = $linker->formatComment( $input, $title, $local );
 470                 } else {
 471                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 472                         $out = $output->getText();
 473
 474                         if (isset( $opts['ill'] ) ) {
 475                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 476                         } elseif( isset( $opts['cat'] ) ) {
 477                                 global $wgOut;
 478                                 $wgOut->addCategoryLinks($output->getCategories());
 479                                 $cats = $wgOut->getCategoryLinks();
 480                                 if ( isset( $cats['normal'] ) ) {
 481                                         $out = $this->tidy( implode( ' ', $cats['normal'] ) );
 482                                 } else {
 483                                         $out = '';
 484                                 }
 485                         }
 486
 487                         $result = $this->tidy($result);
 488                 }
 489
 490                 $this->teardownGlobals();
 491
 492                 if( $result === $out && ( $noxml === true || $this->wellFormed( $out ) ) ) {
 493                         return $this->showSuccess( $desc );
 494                 } else {
 495                         return $this->showFailure( $desc, $result, $out );
 496                 }
 497         }
 498
 499
 500         /**
 501          * Use a regex to find out the value of an option
 502          * @param $key name of option val to retrieve
 503          * @param $opts Options array to look in
 504          * @param $defaults Default value returned if not found
 505          */
 506         private static function getOptionValue( $key, $opts, $default ) {
 507                 $key = strtolower( $key );
 508                 if( isset( $opts[$key] ) ) {
 509                         return $opts[$key];
 510                 } else {
 511                         return $default;
 512                 }
 513         }
 514
 515         private function parseOptions( $instring ) {
 516                 $opts = array();
 517                 $lines = explode( "\n", $instring );
 518                 // foo
 519                 // foo=bar
 520                 // foo="bar baz"
 521                 // foo=[[bar baz]]
 522                 // foo=bar,"baz quux"
 523                 $regex = '/\b
 524                         ([\w-]+)                                                # Key
 525                         \b
 526                         (?:\s*
 527                                 =                                               # First sub-value
 528                                 \s*
 529                                 (
 530                                         "
 531                                                 [^"]*                   # Quoted val
 532                                         "
 533                                 |
 534                                         \[\[
 535                                                 [^]]*                   # Link target
 536                                         \]\]
 537                                 |
 538                                         [\w-]+                          # Plain word
 539                                 )
 540                                 (?:\s*
 541                                         ,                                       # Sub-vals 1..N
 542                                         \s*
 543                                         (
 544                                                 "[^"]*"                 # Quoted val
 545                                         |
 546                                                 \[\[[^]]*\]\]   # Link target
 547                                         |
 548                                                 [\w-]+                  # Plain word
 549                                         )
 550                                 )*
 551                         )?
 552                         /x';
 553
 554                 if( preg_match_all( $regex, $instring, $matches, PREG_SET_ORDER ) ) {
 555                         foreach( $matches as $bits ) {
 556                                 $match = array_shift( $bits );
 557                                 $key = strtolower( array_shift( $bits ) );
 558                                 if( count( $bits ) == 0 ) {
 559                                         $opts[$key] = true;
 560                                 } elseif( count( $bits ) == 1 ) {
 561                                         $opts[$key] = $this->cleanupOption( array_shift( $bits ) );
 562                                 } else {
 563                                         // Array!
 564                                         $opts[$key] = array_map( array( $this, 'cleanupOption' ), $bits );
 565                                 }
 566                         }
 567                 }
 568                 return $opts;
 569         }
 570
 571         private function cleanupOption( $opt ) {
 572                 if( substr( $opt, 0, 1 ) == '"' ) {
 573                         return substr( $opt, 1, -1 );
 574                 }
 575                 if( substr( $opt, 0, 2 ) == '[[' ) {
 576                         return substr( $opt, 2, -2 );
 577                 }
 578                 return $opt;
 579         }
 580
 581         /**
 582          * Set up the global variables for a consistent environment for each test.
 583          * Ideally this should replace the global configuration entirely.
 584          */
 585         private function setupGlobals($opts = '', $config = '') {
 586                 if( !isset( $this->uploadDir ) ) {
 587                         $this->uploadDir = $this->setupUploadDir();
 588                 }
 589
 590                 # Find out values for some special options.
 591                 $lang =
 592                         self::getOptionValue( 'language', $opts, 'en' );
 593                 $variant =
 594                         self::getOptionValue( 'variant', $opts, false );
 595                 $maxtoclevel =
 596                         self::getOptionValue( 'wgMaxTocLevel', $opts, 999 );
 597                 $linkHolderBatchSize =
 598                         self::getOptionValue( 'wgLinkHolderBatchSize', $opts, 1000 );
 599
 600                 $settings = array(
 601                         'wgServer' => 'http://localhost',
 602                         'wgScript' => '/index.php',
 603                         'wgScriptPath' => '/',
 604                         'wgArticlePath' => '/wiki/$1',
 605                         'wgActionPaths' => array(),
 606                         'wgLocalFileRepo' => array(
 607                                 'class' => 'LocalRepo',
 608                                 'name' => 'local',
 609                                 'directory' => $this->uploadDir,
 610                                 'url' => 'http://example.com/images',
 611                                 'hashLevels' => 2,
 612                                 'transformVia404' => false,
 613                         ),
 614                         'wgEnableUploads' => true,
 615                         'wgStyleSheetPath' => '/skins',
 616                         'wgSitename' => 'MediaWiki',
 617                         'wgServerName' => 'Britney Spears',
 618                         'wgLanguageCode' => $lang,
 619                         'wgContLanguageCode' => $lang,
 620                         'wgDBprefix' => 'parsertest_',
 621                         'wgRawHtml' => isset( $opts['rawhtml'] ),
 622                         'wgLang' => null,
 623                         'wgContLang' => null,
 624                         'wgNamespacesWithSubpages' => array( 0 => isset( $opts['subpage'] ) ),
 625                         'wgMaxTocLevel' => $maxtoclevel,
 626                         'wgCapitalLinks' => true,
 627                         'wgNoFollowLinks' => true,
 628                         'wgNoFollowDomainExceptions' => array(),
 629                         'wgThumbnailScriptPath' => false,
 630                         'wgUseTeX' => false,
 631                         'wgLocaltimezone' => 'UTC',
 632                         'wgAllowExternalImages' => true,
 633                         'wgUseTidy' => false,
 634                         'wgDefaultLanguageVariant' => $variant,
 635                         'wgVariantArticlePath' => false,
 636                         'wgGroupPermissions' => array( '*' => array(
 637                                 'createaccount' => true,
 638                                 'read'          => true,
 639                                 'edit'          => true,
 640                                 'createpage'    => true,
 641                                 'createtalk'    => true,
 642                         ) ),
 643                         'wgNamespaceProtection' => array( NS_MEDIAWIKI => 'editinterface' ),
 644                         'wgDefaultExternalStore' => array(),
 645                         'wgForeignFileRepos' => array(),
 646                         'wgLinkHolderBatchSize' => $linkHolderBatchSize,
 647                         'wgEnforceHtmlIds' => true,
 648                         'wgExternalLinkTarget' => false,
 649                         'wgAlwaysUseTidy' => false,
 650                         'wgHtml5' => true,
 651                         'wgWellFormedXml' => true,
 652                         );
 653
 654                 if ($config) {
 655                         $configLines = explode( "\n", $config );
 656
 657                         foreach( $configLines as $line ) {
 658                                 list( $var, $value ) = explode( '=', $line, 2 );
 659
 660                                 $settings[$var] = eval("return $value;" );
 661                         }
 662                 }
 663
 664                 $this->savedGlobals = array();
 665                 foreach( $settings as $var => $val ) {
 666                         $this->savedGlobals[$var] = $GLOBALS[$var];
 667                         $GLOBALS[$var] = $val;
 668                 }
 669                 $langObj = Language::factory( $lang );
 670                 $GLOBALS['wgLang'] = $langObj;
 671                 $GLOBALS['wgContLang'] = $langObj;
 672                 $GLOBALS['wgMemc'] = new FakeMemCachedClient;
 673
 674                 //$GLOBALS['wgMessageCache'] = new MessageCache( new BagOStuff(), false, 0, $GLOBALS['wgDBname'] );
 675
 676                 global $wgUser;
 677                 $wgUser = new User();
 678         }
 679
 680         /**
 681          * List of temporary tables to create, without prefix.
 682          * Some of these probably aren't necessary.
 683          */
 684         private function listTables() {
 685                 global $wgDBtype;
 686                 $tables = array('user', 'page', 'page_restrictions',
 687                         'protected_titles', 'revision', 'text', 'pagelinks', 'imagelinks',
 688                         'categorylinks', 'templatelinks', 'externallinks', 'langlinks',
 689                         'site_stats', 'hitcounter',     'ipblocks', 'image', 'oldimage',
 690                         'recentchanges', 'watchlist', 'math', 'interwiki',
 691                         'querycache', 'objectcache', 'job', 'l10n_cache', 'redirect', 'querycachetwo',
 692                         'archive', 'user_groups', 'page_props', 'category'
 693                 );
 694
 695                 if ($wgDBtype === 'mysql')
 696                         array_push( $tables, 'searchindex' );
 697
 698                 // Allow extensions to add to the list of tables to duplicate;
 699                 // may be necessary if they hook into page save or other code
 700                 // which will require them while running tests.
 701                 wfRunHooks( 'ParserTestTables', array( &$tables ) );
 702
 703                 return $tables;
 704         }
 705
 706         /**
 707          * Set up a temporary set of wiki tables to work with for the tests.
 708          * Currently this will only be done once per run, and any changes to
 709          * the db will be visible to later tests in the run.
 710          */
 711         private function setupDatabase() {
 712                 global $wgDBprefix, $wgDBtype;
 713                 if ( $this->databaseSetupDone ) {
 714                         return;
 715                 }
 716                 if ( $wgDBprefix === 'parsertest_' ) {
 717                         throw new MWException( 'setupDatabase should be called before setupGlobals' );
 718                 }
 719                 $this->databaseSetupDone = true;
 720                 $this->oldTablePrefix = $wgDBprefix;
 721
 722                 # CREATE TEMPORARY TABLE breaks if there is more than one server
 723                 # FIXME: r40209 makes temporary tables break even with just one server
 724                 # FIXME: (bug 15892); disabling the feature entirely as a temporary fix
 725                 if ( true || wfGetLB()->getServerCount() != 1 ) {
 726                         $this->useTemporaryTables = false;
 727                 }
 728
 729                 $temporary = $this->useTemporaryTables ? 'TEMPORARY' : '';
 730
 731                 $db = wfGetDB( DB_MASTER );
 732                 $tables = $this->listTables();
 733
 734                 if ( !( $wgDBtype == 'mysql' && strcmp( $db->getServerVersion(), '4.1' ) < 0 ) ) {
 735                         # Database that supports CREATE TABLE ... LIKE
 736
 737                         if( $wgDBtype == 'postgres' ) {
 738                                 $def = 'INCLUDING DEFAULTS';
 739                                 $temporary = 'TEMPORARY';
 740                         } else {
 741                                 $def = '';
 742                         }
 743                         foreach ( $tables as $tbl ) {
 744                                 # Clean up from previous aborted run.  So that table escaping
 745                                 # works correctly across DB engines, we need to change the pre-
 746                                 # fix back and forth so tableName() works right.
 747                                 $this->changePrefix( $this->oldTablePrefix );
 748                                 $oldTableName = $db->tableName( $tbl );
 749                                 $this->changePrefix( 'parsertest_' );
 750                                 $newTableName = $db->tableName( $tbl );
 751
 752                                 if ( $db->tableExists( $tbl ) && $wgDBtype != 'postgres' ) {
 753                                         $db->query( "DROP TABLE $newTableName" );
 754                                 }
 755                                 # Create new table
 756                                 $db->query( "CREATE $temporary TABLE $newTableName (LIKE $oldTableName $def)" );
 757                         }
 758                 } else {
 759                         # Hack for MySQL versions < 4.1, which don't support
 760                         # "CREATE TABLE ... LIKE". Note that
 761                         # "CREATE TEMPORARY TABLE ... SELECT * FROM ... LIMIT 0"
 762                         # would not create the indexes we need....
 763                         #
 764                         # Note that we don't bother changing around the prefixes here be-
 765                         # cause we know we're using MySQL anyway.
 766                         foreach ($tables as $tbl) {
 767                                 $oldTableName = $db->tableName( $tbl );
 768                                 $res = $db->query("SHOW CREATE TABLE $oldTableName");
 769                                 $row = $db->fetchRow($res);
 770                                 $create = $row[1];
 771                                 $create_tmp = preg_replace('/CREATE TABLE `(.*?)`/',
 772                                         "CREATE $temporary TABLE `parsertest_$tbl`", $create);
 773                                 if ($create === $create_tmp) {
 774                                         # Couldn't do replacement
 775                                         wfDie("could not create temporary table $tbl");
 776                                 }
 777                                 $db->query($create_tmp);
 778                         }
 779                 }
 780
 781                 $this->changePrefix( 'parsertest_' );
 782
 783                 # Hack: insert a few Wikipedia in-project interwiki prefixes,
 784                 # for testing inter-language links
 785                 $db->insert( 'interwiki', array(
 786                         array( 'iw_prefix' => 'wikipedia',
 787                                    'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 788                                    'iw_local'  => 0 ),
 789                         array( 'iw_prefix' => 'meatball',
 790                                    'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 791                                    'iw_local'  => 0 ),
 792                         array( 'iw_prefix' => 'zh',
 793                                    'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 794                                    'iw_local'  => 1 ),
 795                         array( 'iw_prefix' => 'es',
 796                                    'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 797                                    'iw_local'  => 1 ),
 798                         array( 'iw_prefix' => 'fr',
 799                                    'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 800                                    'iw_local'  => 1 ),
 801                         array( 'iw_prefix' => 'ru',
 802                                    'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 803                                    'iw_local'  => 1 ),
 804                         ) );
 805
 806                 # Hack: Insert an image to work with
 807                 $db->insert( 'image', array(
 808                         'img_name'        => 'Foobar.jpg',
 809                         'img_size'        => 12345,
 810                         'img_description' => 'Some lame file',
 811                         'img_user'        => 1,
 812                         'img_user_text'   => 'WikiSysop',
 813                         'img_timestamp'   => $db->timestamp( '20010115123500' ),
 814                         'img_width'       => 1941,
 815                         'img_height'      => 220,
 816                         'img_bits'        => 24,
 817                         'img_media_type'  => MEDIATYPE_BITMAP,
 818                         'img_major_mime'  => "image",
 819                         'img_minor_mime'  => "jpeg",
 820                         'img_metadata'    => serialize( array() ),
 821                         ) );
 822
 823                 # Update certain things in site_stats
 824                 $db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 1, 'ss_good_articles' => 1 ) );
 825
 826                 # Reinitialise the LocalisationCache to match the database state
 827                 Language::getLocalisationCache()->unloadAll();
 828         }
 829
 830         /**
 831          * Change the table prefix on all open DB connections/
 832          */
 833         protected function changePrefix( $prefix ) {
 834                 global $wgDBprefix;
 835                 wfGetLBFactory()->forEachLB( array( $this, 'changeLBPrefix' ), array( $prefix ) );
 836                 $wgDBprefix = $prefix;
 837         }
 838
 839         public function changeLBPrefix( $lb, $prefix ) {
 840                 $lb->forEachOpenConnection( array( $this, 'changeDBPrefix' ), array( $prefix ) );
 841         }
 842
 843         public function changeDBPrefix( $db, $prefix ) {
 844                 $db->tablePrefix( $prefix );
 845         }
 846
 847         private function teardownDatabase() {
 848                 global $wgDBprefix;
 849                 if ( !$this->databaseSetupDone ) {
 850                         return;
 851                 }
 852                 $this->changePrefix( $this->oldTablePrefix );
 853                 $this->databaseSetupDone = false;
 854                 if ( $this->useTemporaryTables ) {
 855                         # Don't need to do anything
 856                         return;
 857                 }
 858
 859                 /*
 860                 $tables = $this->listTables();
 861                 $db = wfGetDB( DB_MASTER );
 862                 foreach ( $tables as $table ) {
 863                         $db->query( "DROP TABLE `parsertest_$table`" );
 864                 }*/
 865         }
 866
 867         /**
 868          * Create a dummy uploads directory which will contain a couple
 869          * of files in order to pass existence tests.
 870          * @return string The directory
 871          */
 872         private function setupUploadDir() {
 873                 global $IP;
 874                 if ( $this->keepUploads ) {
 875                         $dir = wfTempDir() . '/mwParser-images';
 876                         if ( is_dir( $dir ) ) {
 877                                 return $dir;
 878                         }
 879                 } else {
 880                         $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 881                 }
 882
 883                 wfDebug( "Creating upload directory $dir\n" );
 884                 if ( file_exists( $dir ) ) {
 885                         wfDebug( "Already exists!\n" );
 886                         return $dir;
 887                 }
 888                 wfMkdirParents( $dir . '/3/3a' );
 889                 copy( "$IP/skins/monobook/headbg.jpg", "$dir/3/3a/Foobar.jpg" );
 890                 return $dir;
 891         }
 892
 893         /**
 894          * Restore default values and perform any necessary clean-up
 895          * after each test runs.
 896          */
 897         private function teardownGlobals() {
 898                 RepoGroup::destroySingleton();
 899                 LinkCache::singleton()->clear();
 900                 foreach( $this->savedGlobals as $var => $val ) {
 901                         $GLOBALS[$var] = $val;
 902                 }
 903                 if( isset( $this->uploadDir ) ) {
 904                         $this->teardownUploadDir( $this->uploadDir );
 905                         unset( $this->uploadDir );
 906                 }
 907         }
 908
 909         /**
 910          * Remove the dummy uploads directory
 911          */
 912         private function teardownUploadDir( $dir ) {
 913                 if ( $this->keepUploads ) {
 914                         return;
 915                 }
 916
 917                 // delete the files first, then the dirs.
 918                 self::deleteFiles(
 919                         array (
 920                                 "$dir/3/3a/Foobar.jpg",
 921                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 922                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 923                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 924                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 925                         )
 926                 );
 927
 928                 self::deleteDirs(
 929                         array (
 930                                 "$dir/3/3a",
 931                                 "$dir/3",
 932                                 "$dir/thumb/6/65",
 933                                 "$dir/thumb/6",
 934                                 "$dir/thumb/3/3a/Foobar.jpg",
 935                                 "$dir/thumb/3/3a",
 936                                 "$dir/thumb/3",
 937                                 "$dir/thumb",
 938                                 "$dir",
 939                         )
 940                 );
 941         }
 942
 943         /**
 944          * Delete the specified files, if they exist.
 945          * @param array $files full paths to files to delete.
 946          */
 947         private static function deleteFiles( $files ) {
 948                 foreach( $files as $file ) {
 949                         if( file_exists( $file ) ) {
 950                                 unlink( $file );
 951                         }
 952                 }
 953         }
 954
 955         /**
 956          * Delete the specified directories, if they exist. Must be empty.
 957          * @param array $dirs full paths to directories to delete.
 958          */
 959         private static function deleteDirs( $dirs ) {
 960                 foreach( $dirs as $dir ) {
 961                         if( is_dir( $dir ) ) {
 962                                 rmdir( $dir );
 963                         }
 964                 }
 965         }
 966
 967         /**
 968          * "Running test $desc..."
 969          */
 970         protected function showTesting( $desc ) {
 971                 print "Running test $desc... ";
 972         }
 973
 974         /**
 975          * Print a happy success message.
 976          *
 977          * @param string $desc The test name
 978          * @return bool
 979          */
 980         protected function showSuccess( $desc ) {
 981                 if( $this->showProgress ) {
 982                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
 983                 }
 984                 return true;
 985         }
 986
 987         /**
 988          * Print a failure message and provide some explanatory output
 989          * about what went wrong if so configured.
 990          *
 991          * @param string $desc The test name
 992          * @param string $result Expected HTML output
 993          * @param string $html Actual HTML output
 994          * @return bool
 995          */
 996         protected function showFailure( $desc, $result, $html ) {
 997                 if( $this->showFailure ) {
 998                         if( !$this->showProgress ) {
 999                                 # In quiet mode we didn't show the 'Testing' message before the
1000                                 # test, in case it succeeded. Show it now:
1001                                 $this->showTesting( $desc );
1002                         }
1003                         print $this->term->color( '31' ) . 'FAILED!' . $this->term->reset() . "\n";
1004                         if ( $this->showOutput ) {
1005                                 print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
1006                         }
1007                         if( $this->showDiffs ) {
1008                                 print $this->quickDiff( $result, $html );
1009                                 if( !$this->wellFormed( $html ) ) {
1010                                         print "XML error: $this->mXmlError\n";
1011                                 }
1012                         }
1013                 }
1014                 return false;
1015         }
1016
1017         /**
1018          * Run given strings through a diff and return the (colorized) output.
1019          * Requires writable /tmp directory and a 'diff' command in the PATH.
1020          *
1021          * @param string $input
1022          * @param string $output
1023          * @param string $inFileTail Tailing for the input file name
1024          * @param string $outFileTail Tailing for the output file name
1025          * @return string
1026          */
1027         protected function quickDiff( $input, $output, $inFileTail='expected', $outFileTail='actual' ) {
1028                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
1029
1030                 $infile = "$prefix-$inFileTail";
1031                 $this->dumpToFile( $input, $infile );
1032
1033                 $outfile = "$prefix-$outFileTail";
1034                 $this->dumpToFile( $output, $outfile );
1035
1036                 $diff = `diff -au $infile $outfile`;
1037                 unlink( $infile );
1038                 unlink( $outfile );
1039
1040                 return $this->colorDiff( $diff );
1041         }
1042
1043         /**
1044          * Write the given string to a file, adding a final newline.
1045          *
1046          * @param string $data
1047          * @param string $filename
1048          */
1049         private function dumpToFile( $data, $filename ) {
1050                 $file = fopen( $filename, "wt" );
1051                 fwrite( $file, $data . "\n" );
1052                 fclose( $file );
1053         }
1054
1055         /**
1056          * Colorize unified diff output if set for ANSI color output.
1057          * Subtractions are colored blue, additions red.
1058          *
1059          * @param string $text
1060          * @return string
1061          */
1062         protected function colorDiff( $text ) {
1063                 return preg_replace(
1064                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
1065                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
1066                                $this->term->color( 31 ) . '$1' . $this->term->reset() ),
1067                         $text );
1068         }
1069
1070         /**
1071          * Show "Reading tests from ..."
1072          *
1073          * @param String $path
1074          */
1075         protected function showRunFile( $path ){
1076                 print $this->term->color( 1 ) .
1077                         "Reading tests from \"$path\"..." .
1078                         $this->term->reset() .
1079                         "\n";
1080         }
1081
1082         /**
1083          * Insert a temporary test article
1084          * @param string $name the title, including any prefix
1085          * @param string $text the article text
1086          * @param int $line the input line number, for reporting errors
1087          */
1088         private function addArticle($name, $text, $line) {
1089                 $this->setupGlobals();
1090                 $title = Title::newFromText( $name );
1091                 if ( is_null($title) ) {
1092                         wfDie( "invalid title at line $line\n" );
1093                 }
1094
1095                 $aid = $title->getArticleID( GAID_FOR_UPDATE );
1096                 if ($aid != 0) {
1097                         wfDie( "duplicate article at line $line\n" );
1098                 }
1099
1100                 $art = new Article($title);
1101                 $art->insertNewArticle($text, '', false, false );
1102                 $this->teardownGlobals();
1103         }
1104
1105         /**
1106          * Steal a callback function from the primary parser, save it for
1107          * application to our scary parser. If the hook is not installed,
1108          * die a painful dead to warn the others.
1109          * @param string $name
1110          */
1111         private function requireHook( $name ) {
1112                 global $wgParser;
1113                 $wgParser->firstCallInit( ); //make sure hooks are loaded.
1114                 if( isset( $wgParser->mTagHooks[$name] ) ) {
1115                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
1116                 } else {
1117                         wfDie( "This test suite requires the '$name' hook extension.\n" );
1118                 }
1119         }
1120
1121         /**
1122          * Steal a callback function from the primary parser, save it for
1123          * application to our scary parser. If the hook is not installed,
1124          * die a painful dead to warn the others.
1125          * @param string $name
1126          */
1127         private function requireFunctionHook( $name ) {
1128                 global $wgParser;
1129                 $wgParser->firstCallInit( ); //make sure hooks are loaded.
1130                 if( isset( $wgParser->mFunctionHooks[$name] ) ) {
1131                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
1132                 } else {
1133                         wfDie( "This test suite requires the '$name' function hook extension.\n" );
1134                 }
1135         }
1136
1137         /*
1138          * Run the "tidy" command on text if the $wgUseTidy
1139          * global is true
1140          *
1141          * @param string $text the text to tidy
1142          * @return string
1143          * @static
1144          */
1145         private function tidy( $text ) {
1146                 global $wgUseTidy;
1147                 if ($wgUseTidy) {
1148                         $text = Parser::tidy($text);
1149                 }
1150                 return $text;
1151         }
1152
1153         private function wellFormed( $text ) {
1154                 $html =
1155                         Sanitizer::hackDocType() .
1156                         '<html>' .
1157                         $text .
1158                         '</html>';
1159
1160                 $parser = xml_parser_create( "UTF-8" );
1161
1162                 # case folding violates XML standard, turn it off
1163                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
1164
1165                 if( !xml_parse( $parser, $html, true ) ) {
1166                         $err = xml_error_string( xml_get_error_code( $parser ) );
1167                         $position = xml_get_current_byte_index( $parser );
1168                         $fragment = $this->extractFragment( $html, $position );
1169                         $this->mXmlError = "$err at byte $position:\n$fragment";
1170                         xml_parser_free( $parser );
1171                         return false;
1172                 }
1173                 xml_parser_free( $parser );
1174                 return true;
1175         }
1176
1177         private function extractFragment( $text, $position ) {
1178                 $start = max( 0, $position - 10 );
1179                 $before = $position - $start;
1180                 $fragment = '...' .
1181                         $this->term->color( 34 ) .
1182                         substr( $text, $start, $before ) .
1183                         $this->term->color( 0 ) .
1184                         $this->term->color( 31 ) .
1185                         $this->term->color( 1 ) .
1186                         substr( $text, $position, 1 ) .
1187                         $this->term->color( 0 ) .
1188                         $this->term->color( 34 ) .
1189                         substr( $text, $position + 1, 9 ) .
1190                         $this->term->color( 0 ) .
1191                         '...';
1192                 $display = str_replace( "\n", ' ', $fragment );
1193                 $caret = '   ' .
1194                         str_repeat( ' ', $before ) .
1195                         $this->term->color( 31 ) .
1196                         '^' .
1197                         $this->term->color( 0 );
1198                 return "$display\n$caret";
1199         }
1200 }
1201
1202 class AnsiTermColorer {
1203         function __construct() {
1204         }
1205
1206         /**
1207          * Return ANSI terminal escape code for changing text attribs/color
1208          *
1209          * @param string $color Semicolon-separated list of attribute/color codes
1210          * @return string
1211          */
1212         public function color( $color ) {
1213                 global $wgCommandLineDarkBg;
1214                 $light = $wgCommandLineDarkBg ? "1;" : "0;";
1215                 return "\x1b[{$light}{$color}m";
1216         }
1217
1218         /**
1219          * Return ANSI terminal escape code for restoring default text attributes
1220          *
1221          * @return string
1222          */
1223         public function reset() {
1224                 return $this->color( 0 );
1225         }
1226 }
1227
1228 /* A colour-less terminal */
1229 class DummyTermColorer {
1230         public function color( $color ) {
1231                 return '';
1232         }
1233
1234         public function reset() {
1235                 return '';
1236         }
1237 }
1238
1239 class TestRecorder {
1240         var $parent;
1241         var $term;
1242
1243         function __construct( $parent ) {
1244                 $this->parent = $parent;
1245                 $this->term = $parent->term;
1246         }
1247
1248         function start() {
1249                 $this->total = 0;
1250                 $this->success = 0;
1251         }
1252
1253         function record( $test, $result ) {
1254                 $this->total++;
1255                 $this->success += ($result ? 1 : 0);
1256         }
1257
1258         function end() {
1259                 // dummy
1260         }
1261
1262         function report() {
1263                 if( $this->total > 0 ) {
1264                         $this->reportPercentage( $this->success, $this->total );
1265                 } else {
1266                         wfDie( "No tests found.\n" );
1267                 }
1268         }
1269
1270         function reportPercentage( $success, $total ) {
1271                 $ratio = wfPercent( 100 * $success / $total );
1272                 print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";
1273                 if( $success == $total ) {
1274                         print $this->term->color( 32 ) . "ALL TESTS PASSED!";
1275                 } else {
1276                         $failed = $total - $success ;
1277                         print $this->term->color( 31 ) . "$failed tests failed!";
1278                 }
1279                 print $this->term->reset() . "\n";
1280                 return ($success == $total);
1281         }
1282 }
1283
1284 class DbTestPreviewer extends TestRecorder  {
1285         protected $lb;      ///< Database load balancer
1286         protected $db;      ///< Database connection to the main DB
1287         protected $curRun;  ///< run ID number for the current run
1288         protected $prevRun; ///< run ID number for the previous run, if any
1289         protected $results; ///< Result array
1290
1291         /**
1292          * This should be called before the table prefix is changed
1293          */
1294         function __construct( $parent ) {
1295                 parent::__construct( $parent );
1296                 $this->lb = wfGetLBFactory()->newMainLB();
1297                 // This connection will have the wiki's table prefix, not parsertest_
1298                 $this->db = $this->lb->getConnection( DB_MASTER );
1299         }
1300
1301         /**
1302          * Set up result recording; insert a record for the run with the date
1303          * and all that fun stuff
1304          */
1305         function start() {
1306                 global $wgDBtype, $wgDBprefix;
1307                 parent::start();
1308
1309                 if( ! $this->db->tableExists( 'testrun' )
1310                         or ! $this->db->tableExists( 'testitem' ) )
1311                 {
1312                         print "WARNING> `testrun` table not found in database.\n";
1313                         $this->prevRun = false;
1314                 } else {
1315                         // We'll make comparisons against the previous run later...
1316                         $this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
1317                 }
1318                 $this->results = array();
1319         }
1320
1321         function record( $test, $result ) {
1322                 parent::record( $test, $result );
1323                 $this->results[$test] = $result;
1324         }
1325
1326         function report() {
1327                 if( $this->prevRun ) {
1328                         // f = fail, p = pass, n = nonexistent
1329                         // codes show before then after
1330                         $table = array(
1331                                 'fp' => 'previously failing test(s) now PASSING! :)',
1332                                 'pn' => 'previously PASSING test(s) removed o_O',
1333                                 'np' => 'new PASSING test(s) :)',
1334
1335                                 'pf' => 'previously passing test(s) now FAILING! :(',
1336                                 'fn' => 'previously FAILING test(s) removed O_o',
1337                                 'nf' => 'new FAILING test(s) :(',
1338                                 'ff' => 'still FAILING test(s) :(',
1339                         );
1340
1341                         $prevResults = array();
1342
1343                         $res = $this->db->select( 'testitem', array( 'ti_name', 'ti_success' ),
1344                                 array( 'ti_run' => $this->prevRun ), __METHOD__ );
1345                         foreach ( $res as $row ) {
1346                                 if ( !$this->parent->regex
1347                                         || preg_match( "/{$this->parent->regex}/i", $row->ti_name ) )
1348                                 {
1349                                         $prevResults[$row->ti_name] = $row->ti_success;
1350                                 }
1351                         }
1352
1353                         $combined = array_keys( $this->results + $prevResults );
1354
1355                         # Determine breakdown by change type
1356                         $breakdown = array();
1357                         foreach ( $combined as $test ) {
1358                                 if ( !isset( $prevResults[$test] ) ) {
1359                                         $before = 'n';
1360                                 } elseif ( $prevResults[$test] == 1 ) {
1361                                         $before = 'p';
1362                                 } else /* if ( $prevResults[$test] == 0 )*/ {
1363                                         $before = 'f';
1364                                 }
1365                                 if ( !isset( $this->results[$test] ) ) {
1366                                         $after = 'n';
1367                                 } elseif ( $this->results[$test] == 1 ) {
1368                                         $after = 'p';
1369                                 } else /*if ( $this->results[$test] == 0 ) */ {
1370                                         $after = 'f';
1371                                 }
1372                                 $code = $before . $after;
1373                                 if ( isset( $table[$code] ) ) {
1374                                         $breakdown[$code][$test] = $this->getTestStatusInfo( $test, $after );
1375                                 }
1376                         }
1377
1378                         # Write out results
1379                         foreach ( $table as $code => $label ) {
1380                                 if( !empty( $breakdown[$code] ) ) {
1381                                         $count = count($breakdown[$code]);
1382                                         printf( "\n%4d %s\n", $count, $label );
1383                                         foreach ($breakdown[$code] as $differing_test_name => $statusInfo) {
1384                                                 print "      * $differing_test_name  [$statusInfo]\n";
1385                                         }
1386                                 }
1387                         }
1388                 } else {
1389                         print "No previous test runs to compare against.\n";
1390                 }
1391                 print "\n";
1392                 parent::report();
1393         }
1394
1395         /**
1396          ** Returns a string giving information about when a test last had a status change.
1397          ** Could help to track down when regressions were introduced, as distinct from tests
1398          ** which have never passed (which are more change requests than regressions).
1399          */
1400         private function getTestStatusInfo($testname, $after) {
1401
1402                 // If we're looking at a test that has just been removed, then say when it first appeared.
1403                 if ( $after == 'n' ) {
1404                         $changedRun = $this->db->selectField ( 'testitem',
1405                                                                                                    'MIN(ti_run)',
1406                                                                                                    array( 'ti_name' => $testname ),
1407                                                                                                    __METHOD__ );
1408                         $appear = $this->db->selectRow ( 'testrun',
1409                                                                                          array( 'tr_date', 'tr_mw_version' ),
1410                                                                                          array( 'tr_id' => $changedRun ),
1411                                                                                          __METHOD__ );
1412                         return "First recorded appearance: "
1413                                . date( "d-M-Y H:i:s",  strtotime ( $appear->tr_date ) )
1414                                .  ", " . $appear->tr_mw_version;
1415                 }
1416
1417                 // Otherwise, this test has previous recorded results.
1418                 // See when this test last had a different result to what we're seeing now.
1419                 $conds = array(
1420                         'ti_name'    => $testname,
1421                         'ti_success' => ($after == 'f' ? "1" : "0") );
1422                 if ( $this->curRun ) {
1423                         $conds[] = "ti_run != " . $this->db->addQuotes ( $this->curRun );
1424                 }
1425
1426                 $changedRun = $this->db->selectField ( 'testitem', 'MAX(ti_run)', $conds, __METHOD__ );
1427
1428                 // If no record of ever having had a different result.
1429                 if ( is_null ( $changedRun ) ) {
1430                         if ($after == "f") {
1431                                 return "Has never passed";
1432                         } else {
1433                                 return "Has never failed";
1434                         }
1435                 }
1436
1437                 // Otherwise, we're looking at a test whose status has changed.
1438                 // (i.e. it used to work, but now doesn't; or used to fail, but is now fixed.)
1439                 // In this situation, give as much info as we can as to when it changed status.
1440                 $pre  = $this->db->selectRow ( 'testrun',
1441                                                                                 array( 'tr_date', 'tr_mw_version' ),
1442                                                                                 array( 'tr_id' => $changedRun ),
1443                                                                                 __METHOD__ );
1444                 $post = $this->db->selectRow ( 'testrun',
1445                                                                                 array( 'tr_date', 'tr_mw_version' ),
1446                                                                                 array( "tr_id > " . $this->db->addQuotes ( $changedRun) ),
1447                                                                                 __METHOD__,
1448                                                                                 array( "LIMIT" => 1, "ORDER BY" => 'tr_id' )
1449                                                                          );
1450
1451                 if ( $post ) {
1452                         $postDate = date( "d-M-Y H:i:s",  strtotime ( $post->tr_date  ) ) . ", {$post->tr_mw_version}";
1453                 } else {
1454                         $postDate = 'now';
1455                 }
1456                 return ( $after == "f" ? "Introduced" : "Fixed" ) . " between "
1457                                 . date( "d-M-Y H:i:s",  strtotime ( $pre->tr_date ) ) .  ", " . $pre->tr_mw_version
1458                                 . " and $postDate";
1459
1460         }
1461
1462         /**
1463          * Commit transaction and clean up for result recording
1464          */
1465         function end() {
1466                 $this->lb->commitMasterChanges();
1467                 $this->lb->closeAll();
1468                 parent::end();
1469         }
1470
1471 }
1472
1473 class DbTestRecorder extends DbTestPreviewer  {
1474         /**
1475          * Set up result recording; insert a record for the run with the date
1476          * and all that fun stuff
1477          */
1478         function start() {
1479                 global $wgDBtype, $wgDBprefix, $options;
1480                 $this->db->begin();
1481
1482                 if( ! $this->db->tableExists( 'testrun' )
1483                         or ! $this->db->tableExists( 'testitem' ) )
1484                 {
1485                         print "WARNING> `testrun` table not found in database. Trying to create table.\n";
1486                         if ($wgDBtype === 'postgres')
1487                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.postgres.sql' );
1488                         else
1489                                 $this->db->sourceFile( dirname(__FILE__) . '/testRunner.sql' );
1490                         echo "OK, resuming.\n";
1491                 }
1492
1493                 parent::start();
1494
1495                 $this->db->insert( 'testrun',
1496                         array(
1497                                 'tr_date'        => $this->db->timestamp(),
1498                                 'tr_mw_version'  => isset( $options['setversion'] ) ?
1499                                         $options['setversion'] : SpecialVersion::getVersion(),
1500                                 'tr_php_version' => phpversion(),
1501                                 'tr_db_version'  => $this->db->getServerVersion(),
1502                                 'tr_uname'       => php_uname()
1503                         ),
1504                         __METHOD__ );
1505                         if ($wgDBtype === 'postgres')
1506                                 $this->curRun = $this->db->currentSequenceValue('testrun_id_seq');
1507                         else
1508                                 $this->curRun = $this->db->insertId();
1509         }
1510
1511         /**
1512          * Record an individual test item's success or failure to the db
1513          * @param string $test
1514          * @param bool $result
1515          */
1516         function record( $test, $result ) {
1517                 parent::record( $test, $result );
1518                 $this->db->insert( 'testitem',
1519                         array(
1520                                 'ti_run'     => $this->curRun,
1521                                 'ti_name'    => $test,
1522                                 'ti_success' => $result ? 1 : 0,
1523                         ),
1524                         __METHOD__ );
1525         }
1526 }
1527
1528 class RemoteTestRecorder extends TestRecorder {
1529         function start() {
1530                 parent::start();
1531                 $this->results = array();
1532                 $this->ping( 'running' );
1533         }
1534
1535         function record( $test, $result ) {
1536                 parent::record( $test, $result );
1537                 $this->results[$test] = (bool)$result;
1538         }
1539
1540         function end() {
1541                 $this->ping( 'complete', $this->results );
1542                 parent::end();
1543         }
1544
1545         /**
1546          * Inform a CodeReview instance that we've started or completed a test run...
1547          * @param $remote array: info on remote target
1548          * @param $status string: "running" - tell it we've started
1549          *                        "complete" - provide test results array
1550          *                        "abort" - something went horribly awry
1551          * @param $data array of test name => true/false
1552          */
1553         function ping( $status, $results=false ) {
1554                 global $wgParserTestRemote, $IP;
1555
1556                 $remote = $wgParserTestRemote;
1557                 $revId = SpecialVersion::getSvnRevision( $IP );
1558                 $jsonResults = json_encode( $results );
1559
1560                 if( !$remote ) {
1561                         print "Can't do remote upload without configuring \$wgParserTestRemote!\n";
1562                         exit( 1 );
1563                 }
1564
1565                 // Generate a hash MAC to validate our credentials
1566                 $message = array(
1567                         $remote['repo'],
1568                         $remote['suite'],
1569                         $revId,
1570                         $status,
1571                 );
1572                 if( $status == "complete" ) {
1573                         $message[] = $jsonResults;
1574                 }
1575                 $hmac = hash_hmac( "sha1", implode( "|", $message ), $remote['secret'] );
1576
1577                 $postData = array(
1578                         'action' => 'codetestupload',
1579                         'format' => 'json',
1580                         'repo'   => $remote['repo'],
1581                         'suite'  => $remote['suite'],
1582                         'rev'    => $revId,
1583                         'status' => $status,
1584                         'hmac'   => $hmac,
1585                 );
1586                 if( $status == "complete" ) {
1587                         $postData['results'] = $jsonResults;
1588                 }
1589                 $response = $this->post( $remote['api-url'], $postData );
1590
1591                 if( $response === false ) {
1592                         print "CodeReview info upload failed to reach server.\n";
1593                         exit( 1 );
1594                 }
1595                 $responseData = json_decode( $response, true );
1596                 if( !is_array( $responseData ) ) {
1597                         print "CodeReview API response not recognized...\n";
1598                         wfDebug( "Unrecognized CodeReview API response: $response\n" );
1599                         exit( 1 );
1600                 }
1601                 if( isset( $responseData['error'] ) ) {
1602                         $code = $responseData['error']['code'];
1603                         $info = $responseData['error']['info'];
1604                         print "CodeReview info upload failed: $code $info\n";
1605                         exit( 1 );
1606                 }
1607         }
1608
1609         function post( $url, $data ) {
1610                 // @fixme: for whatever reason, I get a 417 fail when using CURL's multipart form submit.
1611                 // If we do form URL encoding ourselves, though, it should work.
1612                 return Http::post( $url, array( 'postdata' => wfArrayToCGI( $data ) ) );
1613         }
1614 }