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  * @package MediaWiki
  24  * @subpackage Maintenance
  25  */
  26
  27 /** */
  28 $options = array( 'quick', 'color', 'quiet', 'help', 'show-output', 'record' );
  29 $optionsWithArgs = array( 'regex' );
  30
  31 require_once( 'commandLine.inc' );
  32 require_once( "$IP/includes/ObjectCache.php" );
  33 require_once( "$IP/includes/BagOStuff.php" );
  34 require_once( "$IP/includes/Hooks.php" );
  35 require_once( "$IP/maintenance/parserTestsParserHook.php" );
  36 require_once( "$IP/maintenance/parserTestsStaticParserHook.php" );
  37 require_once( "$IP/maintenance/parserTestsParserTime.php" );
  38
  39 /**
  40  * @package MediaWiki
  41  * @subpackage Maintenance
  42  */
  43 class ParserTest {
  44         /**
  45          * boolean $color whereas output should be colorized
  46          * @private
  47          */
  48         var $color;
  49
  50         /**
  51          * boolean $lightcolor whereas output should use light colors
  52          * @private
  53          */
  54         var $lightcolor;
  55
  56         /**
  57          * boolean $showOutput Show test output
  58          */
  59         var $showOutput;
  60
  61         /**
  62          * Sets terminal colorization and diff/quick modes depending on OS and
  63          * command-line options (--color and --quick).
  64          *
  65          * @public
  66          */
  67         function ParserTest() {
  68                 global $options;
  69
  70                 # Only colorize output if stdout is a terminal.
  71                 $this->lightcolor = false;
  72                 $this->color = !wfIsWindows() && posix_isatty(1);
  73
  74                 if( isset( $options['color'] ) ) {
  75                         switch( $options['color'] ) {
  76                         case 'no':
  77                                 $this->color = false;
  78                                 break;
  79                         case 'light':
  80                                 $this->lightcolor = true;
  81                                 # Fall through
  82                         case 'yes':
  83                         default:
  84                                 $this->color = true;
  85                                 break;
  86                         }
  87                 }
  88                 $this->term = $this->color
  89                         ? new AnsiTermColorer( $this->lightcolor )
  90                         : new DummyTermColorer();
  91
  92                 $this->showDiffs = !isset( $options['quick'] );
  93                 $this->quiet = isset( $options['quiet'] );
  94                 $this->showOutput = isset( $options['show-output'] );
  95
  96
  97                 if (isset($options['regex'])) {
  98                         $this->regex = $options['regex'];
  99                 } else {
 100                         # Matches anything
 101                         $this->regex = '';
 102                 }
 103
 104                 if( isset( $options['record'] ) ) {
 105                         $this->recorder = new DbTestRecorder( $this->term );
 106                 } else {
 107                         $this->recorder = new TestRecorder( $this->term );
 108                 }
 109
 110                 $this->hooks = array();
 111                 $this->functionHooks = array();
 112         }
 113
 114         /**
 115          * Remove last character if it is a newline
 116          * @private
 117          */
 118         function chomp($s) {
 119                 if (substr($s, -1) === "\n") {
 120                         return substr($s, 0, -1);
 121                 }
 122                 else {
 123                         return $s;
 124                 }
 125         }
 126
 127         /**
 128          * Run a series of tests listed in the given text files.
 129          * Each test consists of a brief description, wikitext input,
 130          * and the expected HTML output.
 131          *
 132          * Prints status updates on stdout and counts up the total
 133          * number and percentage of passed tests.
 134          *
 135          * @param array of strings $filenames
 136          * @return bool True if passed all tests, false if any tests failed.
 137          * @public
 138          */
 139         function runTestsFromFiles( $filenames ) {
 140                 $this->recorder->start();
 141                 $ok = true;
 142                 foreach( $filenames as $filename ) {
 143                         $ok = $this->runFile( $filename ) && $ok;
 144                 }
 145                 $this->recorder->end();
 146                 $this->recorder->report();
 147                 return $ok;
 148         }
 149
 150         private function runFile( $filename ) {
 151                 $infile = fopen( $filename, 'rt' );
 152                 if( !$infile ) {
 153                         wfDie( "Couldn't open $filename\n" );
 154                 } else {
 155                         print $this->term->color( 1 ) .
 156                                 "Reading tests from \"$filename\"..." .
 157                                 $this->term->reset() .
 158                                 "\n";
 159                 }
 160
 161                 $data = array();
 162                 $section = null;
 163                 $n = 0;
 164                 $ok = true;
 165                 while( false !== ($line = fgets( $infile ) ) ) {
 166                         $n++;
 167                         if( preg_match( '/^!!\s*(\w+)/', $line, $matches ) ) {
 168                                 $section = strtolower( $matches[1] );
 169                                 if( $section == 'endarticle') {
 170                                         if( !isset( $data['text'] ) ) {
 171                                                 wfDie( "'endarticle' without 'text' at line $n of $filename\n" );
 172                                         }
 173                                         if( !isset( $data['article'] ) ) {
 174                                                 wfDie( "'endarticle' without 'article' at line $n of $filename\n" );
 175                                         }
 176                                         $this->addArticle($this->chomp($data['article']), $this->chomp($data['text']), $n);
 177                                         $data = array();
 178                                         $section = null;
 179                                         continue;
 180                                 }
 181                                 if( $section == 'endhooks' ) {
 182                                         if( !isset( $data['hooks'] ) ) {
 183                                                 wfDie( "'endhooks' without 'hooks' at line $n of $filename\n" );
 184                                         }
 185                                         foreach( explode( "\n", $data['hooks'] ) as $line ) {
 186                                                 $line = trim( $line );
 187                                                 if( $line ) {
 188                                                         $this->requireHook( $line );
 189                                                 }
 190                                         }
 191                                         $data = array();
 192                                         $section = null;
 193                                         continue;
 194                                 }
 195                                 if( $section == 'endfunctionhooks' ) {
 196                                         if( !isset( $data['functionhooks'] ) ) {
 197                                                 wfDie( "'endfunctionhooks' without 'functionhooks' at line $n of $filename\n" );
 198                                         }
 199                                         foreach( explode( "\n", $data['functionhooks'] ) as $line ) {
 200                                                 $line = trim( $line );
 201                                                 if( $line ) {
 202                                                         $this->requireFunctionHook( $line );
 203                                                 }
 204                                         }
 205                                         $data = array();
 206                                         $section = null;
 207                                         continue;
 208                                 }
 209                                 if( $section == 'end' ) {
 210                                         if( !isset( $data['test'] ) ) {
 211                                                 wfDie( "'end' without 'test' at line $n of $filename\n" );
 212                                         }
 213                                         if( !isset( $data['input'] ) ) {
 214                                                 wfDie( "'end' without 'input' at line $n of $filename\n" );
 215                                         }
 216                                         if( !isset( $data['result'] ) ) {
 217                                                 wfDie( "'end' without 'result' at line $n of $filename\n" );
 218                                         }
 219                                         if( !isset( $data['options'] ) ) {
 220                                                 $data['options'] = '';
 221                                         }
 222                                         else {
 223                                                 $data['options'] = $this->chomp( $data['options'] );
 224                                         }
 225                                         if (preg_match('/\\bdisabled\\b/i', $data['options'])
 226                                                 || !preg_match("/{$this->regex}/i", $data['test'])) {
 227                                                 # disabled test
 228                                                 $data = array();
 229                                                 $section = null;
 230                                                 continue;
 231                                         }
 232                                         $result = $this->runTest(
 233                                                 $this->chomp( $data['test'] ),
 234                                                 $this->chomp( $data['input'] ),
 235                                                 $this->chomp( $data['result'] ),
 236                                                 $this->chomp( $data['options'] ) );
 237                                         $ok = $ok && $result;
 238                                         $this->recorder->record( $this->chomp( $data['test'] ), $result );
 239                                         $data = array();
 240                                         $section = null;
 241                                         continue;
 242                                 }
 243                                 if ( isset ($data[$section] ) ) {
 244                                         wfDie( "duplicate section '$section' at line $n of $filename\n" );
 245                                 }
 246                                 $data[$section] = '';
 247                                 continue;
 248                         }
 249                         if( $section ) {
 250                                 $data[$section] .= $line;
 251                         }
 252                 }
 253                 print "\n";
 254                 return $ok;
 255         }
 256
 257         /**
 258          * Run a given wikitext input through a freshly-constructed wiki parser,
 259          * and compare the output against the expected results.
 260          * Prints status and explanatory messages to stdout.
 261          *
 262          * @param string $input Wikitext to try rendering
 263          * @param string $result Result to output
 264          * @return bool
 265          */
 266         function runTest( $desc, $input, $result, $opts ) {
 267                 if( !$this->quiet ) {
 268                         $this->showTesting( $desc );
 269                 }
 270
 271                 $this->setupGlobals($opts);
 272
 273                 $user = new User();
 274                 $options = ParserOptions::newFromUser( $user );
 275
 276                 if (preg_match('/\\bmath\\b/i', $opts)) {
 277                         # XXX this should probably be done by the ParserOptions
 278                         $options->setUseTex(true);
 279                 }
 280
 281                 if (preg_match('/title=\[\[(.*)\]\]/', $opts, $m)) {
 282                         $titleText = $m[1];
 283                 }
 284                 else {
 285                         $titleText = 'Parser test';
 286                 }
 287
 288                 $noxml = (bool)preg_match( '~\\b noxml \\b~x', $opts );
 289
 290                 $parser = new Parser();
 291                 foreach( $this->hooks as $tag => $callback ) {
 292                         $parser->setHook( $tag, $callback );
 293                 }
 294                 foreach( $this->functionHooks as $tag => $callback ) {
 295                         $parser->setFunctionHook( $tag, $callback );
 296                 }
 297                 wfRunHooks( 'ParserTestParser', array( &$parser ) );
 298
 299                 $title =& Title::makeTitle( NS_MAIN, $titleText );
 300
 301                 if (preg_match('/\\bpst\\b/i', $opts)) {
 302                         $out = $parser->preSaveTransform( $input, $title, $user, $options );
 303                 } elseif (preg_match('/\\bmsg\\b/i', $opts)) {
 304                         $out = $parser->transformMsg( $input, $options );
 305                 } elseif( preg_match( '/\\bsection=(\d+)\b/i', $opts, $matches ) ) {
 306                         $section = intval( $matches[1] );
 307                         $out = $parser->getSection( $input, $section );
 308                 } elseif( preg_match( '/\\breplace=(\d+),"(.*?)"/i', $opts, $matches ) ) {
 309                         $section = intval( $matches[1] );
 310                         $replace = $matches[2];
 311                         $out = $parser->replaceSection( $input, $section, $replace );
 312                 } else {
 313                         $output = $parser->parse( $input, $title, $options, true, true, 1337 );
 314                         $out = $output->getText();
 315
 316                         if (preg_match('/\\bill\\b/i', $opts)) {
 317                                 $out = $this->tidy( implode( ' ', $output->getLanguageLinks() ) );
 318                         } else if (preg_match('/\\bcat\\b/i', $opts)) {
 319                                 global $wgOut;
 320                                 $wgOut->addCategoryLinks($output->getCategories());
 321                                 $out = $this->tidy ( implode( ' ', $wgOut->getCategoryLinks() ) );
 322                         }
 323
 324                         $result = $this->tidy($result);
 325                 }
 326
 327                 $this->teardownGlobals();
 328
 329                 if( $result === $out && ( $noxml === true || $this->wellFormed( $out ) ) ) {
 330                         return $this->showSuccess( $desc );
 331                 } else {
 332                         return $this->showFailure( $desc, $result, $out );
 333                 }
 334         }
 335
 336         /**
 337          * Set up the global variables for a consistent environment for each test.
 338          * Ideally this should replace the global configuration entirely.
 339          *
 340          * @private
 341          */
 342         function setupGlobals($opts = '') {
 343                 # Save the prefixed / quoted table names for later use when we make the temporaries.
 344                 $db =& wfGetDB( DB_READ );
 345                 $this->oldTableNames = array();
 346                 foreach( $this->listTables() as $table ) {
 347                         $this->oldTableNames[$table] = $db->tableName( $table );
 348                 }
 349                 if( !isset( $this->uploadDir ) ) {
 350                         $this->uploadDir = $this->setupUploadDir();
 351                 }
 352
 353                 if( preg_match( '/language=([a-z]+(?:_[a-z]+)?)/', $opts, $m ) ) {
 354                         $lang = $m[1];
 355                 } else {
 356                         $lang = 'en';
 357                 }
 358
 359                 if( preg_match( '/variant=([a-z]+(?:-[a-z]+)?)/', $opts, $m ) )
 360                         $variant = $m[1];
 361                 else
 362                         $variant = false;
 363
 364
 365                 $settings = array(
 366                         'wgServer' => 'http://localhost',
 367                         'wgScript' => '/index.php',
 368                         'wgScriptPath' => '/',
 369                         'wgArticlePath' => '/wiki/$1',
 370                         'wgActionPaths' => array(),
 371                         'wgUploadPath' => 'http://example.com/images',
 372                         'wgUploadDirectory' => $this->uploadDir,
 373                         'wgStyleSheetPath' => '/skins',
 374                         'wgSitename' => 'MediaWiki',
 375                         'wgServerName' => 'Britney Spears',
 376                         'wgLanguageCode' => $lang,
 377                         'wgContLanguageCode' => $lang,
 378                         'wgDBprefix' => 'parsertest_',
 379                         'wgRawHtml' => preg_match('/\\brawhtml\\b/i', $opts),
 380                         'wgLang' => null,
 381                         'wgContLang' => null,
 382                         'wgNamespacesWithSubpages' => array( 0 => preg_match('/\\bsubpage\\b/i', $opts)),
 383                         'wgMaxTocLevel' => 999,
 384                         'wgCapitalLinks' => true,
 385                         'wgNoFollowLinks' => true,
 386                         'wgThumbnailScriptPath' => false,
 387                         'wgUseTeX' => false,
 388                         'wgLocaltimezone' => 'UTC',
 389                         'wgAllowExternalImages' => true,
 390                         'wgUseTidy' => false,
 391                         'wgDefaultLanguageVariant' => $variant,
 392                         'wgVariantArticlePath' => false,
 393                         );
 394                 $this->savedGlobals = array();
 395                 foreach( $settings as $var => $val ) {
 396                         $this->savedGlobals[$var] = $GLOBALS[$var];
 397                         $GLOBALS[$var] = $val;
 398                 }
 399                 $langObj = Language::factory( $lang );
 400                 $GLOBALS['wgLang'] = $langObj;
 401                 $GLOBALS['wgContLang'] = $langObj;
 402
 403                 $GLOBALS['wgLoadBalancer']->loadMasterPos();
 404                 //$GLOBALS['wgMessageCache'] = new MessageCache( new BagOStuff(), false, 0, $GLOBALS['wgDBname'] );
 405                 $this->setupDatabase();
 406
 407                 global $wgUser;
 408                 $wgUser = new User();
 409         }
 410
 411         # List of temporary tables to create, without prefix
 412         # Some of these probably aren't necessary
 413         function listTables() {
 414                 $tables = array('user', 'page', 'revision', 'text',
 415                         'pagelinks', 'imagelinks', 'categorylinks',
 416                         'templatelinks', 'externallinks', 'langlinks',
 417                         'site_stats', 'hitcounter',
 418                         'ipblocks', 'image', 'oldimage',
 419                         'recentchanges',
 420                         'watchlist', 'math', 'searchindex',
 421                         'interwiki', 'querycache',
 422                         'objectcache', 'job', 'redirect',
 423                         'querycachetwo'
 424                 );
 425
 426                 // FIXME manually adding additional table for the tasks extension
 427                 // we probably need a better software wide system to register new
 428                 // tables.
 429                 global $wgExtensionFunctions;
 430                 if( in_array('wfTasksExtension' , $wgExtensionFunctions ) ) {
 431                         $tables[] = 'tasks';
 432                 }
 433
 434                 return $tables;
 435         }
 436
 437         /**
 438          * Set up a temporary set of wiki tables to work with for the tests.
 439          * Currently this will only be done once per run, and any changes to
 440          * the db will be visible to later tests in the run.
 441          *
 442          * @private
 443          */
 444         function setupDatabase() {
 445                 static $setupDB = false;
 446                 global $wgDBprefix;
 447
 448                 # Make sure we don't mess with the live DB
 449                 if (!$setupDB && $wgDBprefix === 'parsertest_') {
 450                         # oh teh horror
 451                         $GLOBALS['wgLoadBalancer'] = LoadBalancer::newFromParams( $GLOBALS['wgDBservers'] );
 452                         $db =& wfGetDB( DB_MASTER );
 453
 454                         $tables = $this->listTables();
 455
 456                         if (!(strcmp($db->getServerVersion(), '4.1') < 0 and stristr($db->getSoftwareLink(), 'MySQL'))) {
 457                                 # Database that supports CREATE TABLE ... LIKE
 458                                 global $wgDBtype;
 459                                 if( $wgDBtype == 'postgres' ) {
 460                                         $def = 'INCLUDING DEFAULTS';
 461                                 } else {
 462                                         $def = '';
 463                                 }
 464                                 foreach ($tables as $tbl) {
 465                                         $newTableName = $db->tableName( $tbl );
 466                                         $tableName = $this->oldTableNames[$tbl];
 467                                         $db->query("CREATE TEMPORARY TABLE $newTableName (LIKE $tableName $def)");
 468                                 }
 469                         } else {
 470                                 # Hack for MySQL versions < 4.1, which don't support
 471                                 # "CREATE TABLE ... LIKE". Note that
 472                                 # "CREATE TEMPORARY TABLE ... SELECT * FROM ... LIMIT 0"
 473                                 # would not create the indexes we need....
 474                                 foreach ($tables as $tbl) {
 475                                         $res = $db->query("SHOW CREATE TABLE {$this->oldTableNames[$tbl]}");
 476                                         $row = $db->fetchRow($res);
 477                                         $create = $row[1];
 478                                         $create_tmp = preg_replace('/CREATE TABLE `(.*?)`/', 'CREATE TEMPORARY TABLE `'
 479                                                 . $wgDBprefix . $tbl .'`', $create);
 480                                         if ($create === $create_tmp) {
 481                                                 # Couldn't do replacement
 482                                                 wfDie("could not create temporary table $tbl");
 483                                         }
 484                                         $db->query($create_tmp);
 485                                 }
 486
 487                         }
 488
 489                         # Hack: insert a few Wikipedia in-project interwiki prefixes,
 490                         # for testing inter-language links
 491                         $db->insert( 'interwiki', array(
 492                                 array( 'iw_prefix' => 'Wikipedia',
 493                                        'iw_url'    => 'http://en.wikipedia.org/wiki/$1',
 494                                        'iw_local'  => 0 ),
 495                                 array( 'iw_prefix' => 'MeatBall',
 496                                        'iw_url'    => 'http://www.usemod.com/cgi-bin/mb.pl?$1',
 497                                        'iw_local'  => 0 ),
 498                                 array( 'iw_prefix' => 'zh',
 499                                        'iw_url'    => 'http://zh.wikipedia.org/wiki/$1',
 500                                        'iw_local'  => 1 ),
 501                                 array( 'iw_prefix' => 'es',
 502                                        'iw_url'    => 'http://es.wikipedia.org/wiki/$1',
 503                                        'iw_local'  => 1 ),
 504                                 array( 'iw_prefix' => 'fr',
 505                                        'iw_url'    => 'http://fr.wikipedia.org/wiki/$1',
 506                                        'iw_local'  => 1 ),
 507                                 array( 'iw_prefix' => 'ru',
 508                                        'iw_url'    => 'http://ru.wikipedia.org/wiki/$1',
 509                                        'iw_local'  => 1 ),
 510                                 ) );
 511
 512                         # Hack: Insert an image to work with
 513                         $db->insert( 'image', array(
 514                                 'img_name'        => 'Foobar.jpg',
 515                                 'img_size'        => 12345,
 516                                 'img_description' => 'Some lame file',
 517                                 'img_user'        => 1,
 518                                 'img_user_text'   => 'WikiSysop',
 519                                 'img_timestamp'   => $db->timestamp( '20010115123500' ),
 520                                 'img_width'       => 1941,
 521                                 'img_height'      => 220,
 522                                 'img_bits'        => 24,
 523                                 'img_media_type'  => MEDIATYPE_BITMAP,
 524                                 'img_major_mime'  => "image",
 525                                 'img_minor_mime'  => "jpeg",
 526                                 'img_metadata'    => serialize( array() ),
 527                                 ) );
 528
 529                         # Update certain things in site_stats
 530                         $db->insert( 'site_stats', array( 'ss_row_id' => 1, 'ss_images' => 1, 'ss_good_articles' => 1 ) );
 531
 532                         $setupDB = true;
 533                 }
 534         }
 535
 536         /**
 537          * Create a dummy uploads directory which will contain a couple
 538          * of files in order to pass existence tests.
 539          * @return string The directory
 540          * @private
 541          */
 542         function setupUploadDir() {
 543                 global $IP;
 544
 545                 $dir = wfTempDir() . "/mwParser-" . mt_rand() . "-images";
 546                 mkdir( $dir );
 547                 mkdir( $dir . '/3' );
 548                 mkdir( $dir . '/3/3a' );
 549
 550                 $img = "$IP/skins/monobook/headbg.jpg";
 551                 $h = fopen($img, 'r');
 552                 $c = fread($h, filesize($img));
 553                 fclose($h);
 554
 555                 $f = fopen( $dir . '/3/3a/Foobar.jpg', 'wb' );
 556                 fwrite( $f, $c );
 557                 fclose( $f );
 558                 return $dir;
 559         }
 560
 561         /**
 562          * Restore default values and perform any necessary clean-up
 563          * after each test runs.
 564          *
 565          * @private
 566          */
 567         function teardownGlobals() {
 568                 foreach( $this->savedGlobals as $var => $val ) {
 569                         $GLOBALS[$var] = $val;
 570                 }
 571                 if( isset( $this->uploadDir ) ) {
 572                         $this->teardownUploadDir( $this->uploadDir );
 573                         unset( $this->uploadDir );
 574                 }
 575         }
 576
 577         /**
 578          * Remove the dummy uploads directory
 579          * @private
 580          */
 581         function teardownUploadDir( $dir ) {
 582                 // delete the files first, then the dirs.
 583                 self::deleteFiles(
 584                         array (
 585                                 "$dir/3/3a/Foobar.jpg",
 586                                 "$dir/thumb/3/3a/Foobar.jpg/180px-Foobar.jpg",
 587                                 "$dir/thumb/3/3a/Foobar.jpg/200px-Foobar.jpg",
 588                                 "$dir/thumb/3/3a/Foobar.jpg/640px-Foobar.jpg",
 589                                 "$dir/thumb/3/3a/Foobar.jpg/120px-Foobar.jpg",
 590                         )
 591                 );
 592
 593                 self::deleteDirs(
 594                         array (
 595                                 "$dir/3/3a",
 596                                 "$dir/3",
 597                                 "$dir/thumb/6/65",
 598                                 "$dir/thumb/6",
 599                                 "$dir/thumb/3/3a/Foobar.jpg",
 600                                 "$dir/thumb/3/3a",
 601                                 "$dir/thumb/3",
 602                                 "$dir/thumb",
 603                                 "$dir",
 604                         )
 605                 );
 606         }
 607
 608         /**
 609          * @desc delete the specified files, if they exist.
 610          * @param array $files full paths to files to delete.
 611          */
 612         private static function deleteFiles( $files ) {
 613                 foreach( $files as $file ) {
 614                         if( file_exists( $file ) ) {
 615                                 unlink( $file );
 616                         }
 617                 }
 618         }
 619
 620         /**
 621          * @desc delete the specified directories, if they exist. Must be empty.
 622          * @param array $dirs full paths to directories to delete.
 623          */
 624         private static function deleteDirs( $dirs ) {
 625                 foreach( $dirs as $dir ) {
 626                         if( is_dir( $dir ) ) {
 627                                 rmdir( $dir );
 628                         }
 629                 }
 630         }
 631
 632         /**
 633          * "Running test $desc..."
 634          * @private
 635          */
 636         function showTesting( $desc ) {
 637                 print "Running test $desc... ";
 638         }
 639
 640         /**
 641          * Print a happy success message.
 642          *
 643          * @param string $desc The test name
 644          * @return bool
 645          * @private
 646          */
 647         function showSuccess( $desc ) {
 648                 if( !$this->quiet ) {
 649                         print $this->term->color( '1;32' ) . 'PASSED' . $this->term->reset() . "\n";
 650                 }
 651                 return true;
 652         }
 653
 654         /**
 655          * Print a failure message and provide some explanatory output
 656          * about what went wrong if so configured.
 657          *
 658          * @param string $desc The test name
 659          * @param string $result Expected HTML output
 660          * @param string $html Actual HTML output
 661          * @return bool
 662          * @private
 663          */
 664         function showFailure( $desc, $result, $html ) {
 665                 if( $this->quiet ) {
 666                         # In quiet mode we didn't show the 'Testing' message before the
 667                         # test, in case it succeeded. Show it now:
 668                         $this->showTesting( $desc );
 669                 }
 670                 print $this->term->color( '1;31' ) . 'FAILED!' . $this->term->reset() . "\n";
 671                 if ( $this->showOutput ) {
 672                         print "--- Expected ---\n$result\n--- Actual ---\n$html\n";
 673                 }
 674                 if( $this->showDiffs ) {
 675                         print $this->quickDiff( $result, $html );
 676                         if( !$this->wellFormed( $html ) ) {
 677                                 print "XML error: $this->mXmlError\n";
 678                         }
 679                 }
 680                 return false;
 681         }
 682
 683         /**
 684          * Run given strings through a diff and return the (colorized) output.
 685          * Requires writable /tmp directory and a 'diff' command in the PATH.
 686          *
 687          * @param string $input
 688          * @param string $output
 689          * @param string $inFileTail Tailing for the input file name
 690          * @param string $outFileTail Tailing for the output file name
 691          * @return string
 692          * @private
 693          */
 694         function quickDiff( $input, $output, $inFileTail='expected', $outFileTail='actual' ) {
 695                 $prefix = wfTempDir() . "/mwParser-" . mt_rand();
 696
 697                 $infile = "$prefix-$inFileTail";
 698                 $this->dumpToFile( $input, $infile );
 699
 700                 $outfile = "$prefix-$outFileTail";
 701                 $this->dumpToFile( $output, $outfile );
 702
 703                 $diff = `diff -au $infile $outfile`;
 704                 unlink( $infile );
 705                 unlink( $outfile );
 706
 707                 return $this->colorDiff( $diff );
 708         }
 709
 710         /**
 711          * Write the given string to a file, adding a final newline.
 712          *
 713          * @param string $data
 714          * @param string $filename
 715          * @private
 716          */
 717         function dumpToFile( $data, $filename ) {
 718                 $file = fopen( $filename, "wt" );
 719                 fwrite( $file, $data . "\n" );
 720                 fclose( $file );
 721         }
 722
 723         /**
 724          * Colorize unified diff output if set for ANSI color output.
 725          * Subtractions are colored blue, additions red.
 726          *
 727          * @param string $text
 728          * @return string
 729          * @private
 730          */
 731         function colorDiff( $text ) {
 732                 return preg_replace(
 733                         array( '/^(-.*)$/m', '/^(\+.*)$/m' ),
 734                         array( $this->term->color( 34 ) . '$1' . $this->term->reset(),
 735                                $this->term->color( 31 ) . '$1' . $this->term->reset() ),
 736                         $text );
 737         }
 738
 739         /**
 740          * Insert a temporary test article
 741          * @param string $name the title, including any prefix
 742          * @param string $text the article text
 743          * @param int $line the input line number, for reporting errors
 744          * @private
 745          */
 746         function addArticle($name, $text, $line) {
 747                 $this->setupGlobals();
 748                 $title = Title::newFromText( $name );
 749                 if ( is_null($title) ) {
 750                         wfDie( "invalid title at line $line\n" );
 751                 }
 752
 753                 $aid = $title->getArticleID( GAID_FOR_UPDATE );
 754                 if ($aid != 0) {
 755                         wfDie( "duplicate article at line $line\n" );
 756                 }
 757
 758                 $art = new Article($title);
 759                 $art->insertNewArticle($text, '', false, false );
 760                 $this->teardownGlobals();
 761         }
 762
 763         /**
 764          * Steal a callback function from the primary parser, save it for
 765          * application to our scary parser. If the hook is not installed,
 766          * die a painful dead to warn the others.
 767          * @param string $name
 768          */
 769         private function requireHook( $name ) {
 770                 global $wgParser;
 771                 if( isset( $wgParser->mTagHooks[$name] ) ) {
 772                         $this->hooks[$name] = $wgParser->mTagHooks[$name];
 773                 } else {
 774                         wfDie( "This test suite requires the '$name' hook extension.\n" );
 775                 }
 776         }
 777
 778
 779         /**
 780          * Steal a callback function from the primary parser, save it for
 781          * application to our scary parser. If the hook is not installed,
 782          * die a painful dead to warn the others.
 783          * @param string $name
 784          */
 785         private function requireFunctionHook( $name ) {
 786                 global $wgParser;
 787                 if( isset( $wgParser->mFunctionHooks[$name] ) ) {
 788                         $this->functionHooks[$name] = $wgParser->mFunctionHooks[$name];
 789                 } else {
 790                         wfDie( "This test suite requires the '$name' function hook extension.\n" );
 791                 }
 792         }
 793
 794         /*
 795          * Run the "tidy" command on text if the $wgUseTidy
 796          * global is true
 797          *
 798          * @param string $text the text to tidy
 799          * @return string
 800          * @static
 801          * @private
 802          */
 803         function tidy( $text ) {
 804                 global $wgUseTidy;
 805                 if ($wgUseTidy) {
 806                         $text = Parser::tidy($text);
 807                 }
 808                 return $text;
 809         }
 810
 811         function wellFormed( $text ) {
 812                 $html =
 813                         Sanitizer::hackDocType() .
 814                         '<html>' .
 815                         $text .
 816                         '</html>';
 817
 818                 $parser = xml_parser_create( "UTF-8" );
 819
 820                 # case folding violates XML standard, turn it off
 821                 xml_parser_set_option( $parser, XML_OPTION_CASE_FOLDING, false );
 822
 823                 if( !xml_parse( $parser, $html, true ) ) {
 824                         $err = xml_error_string( xml_get_error_code( $parser ) );
 825                         $position = xml_get_current_byte_index( $parser );
 826                         $fragment = $this->extractFragment( $html, $position );
 827                         $this->mXmlError = "$err at byte $position:\n$fragment";
 828                         xml_parser_free( $parser );
 829                         return false;
 830                 }
 831                 xml_parser_free( $parser );
 832                 return true;
 833         }
 834
 835         function extractFragment( $text, $position ) {
 836                 $start = max( 0, $position - 10 );
 837                 $before = $position - $start;
 838                 $fragment = '...' .
 839                         $this->term->color( 34 ) .
 840                         substr( $text, $start, $before ) .
 841                         $this->term->color( 0 ) .
 842                         $this->term->color( 31 ) .
 843                         $this->term->color( 1 ) .
 844                         substr( $text, $position, 1 ) .
 845                         $this->term->color( 0 ) .
 846                         $this->term->color( 34 ) .
 847                         substr( $text, $position + 1, 9 ) .
 848                         $this->term->color( 0 ) .
 849                         '...';
 850                 $display = str_replace( "\n", ' ', $fragment );
 851                 $caret = '   ' .
 852                         str_repeat( ' ', $before ) .
 853                         $this->term->color( 31 ) .
 854                         '^' .
 855                         $this->term->color( 0 );
 856                 return "$display\n$caret";
 857         }
 858
 859 }
 860
 861 class AnsiTermColorer {
 862         function __construct( $light ) {
 863                 $this->light = $light;
 864         }
 865
 866         /**
 867          * Return ANSI terminal escape code for changing text attribs/color
 868          *
 869          * @param string $color Semicolon-separated list of attribute/color codes
 870          * @return string
 871          * @private
 872          */
 873         function color( $color ) {
 874                 $light = $this->light ? "1;" : "";
 875                 return "\x1b[{$light}{$color}m";
 876         }
 877
 878         /**
 879          * Return ANSI terminal escape code for restoring default text attributes
 880          *
 881          * @return string
 882          * @private
 883          */
 884         function reset() {
 885                 return "\x1b[0m";
 886         }
 887 }
 888
 889 /* A colour-less terminal */
 890 class DummyTermColorer {
 891         function color( $color ) {
 892                 return '';
 893         }
 894
 895         function reset() {
 896                 return '';
 897         }
 898 }
 899
 900 class TestRecorder {
 901         function __construct( $term ) {
 902                 $this->term = $term;
 903         }
 904
 905         function start() {
 906                 $this->total = 0;
 907                 $this->success = 0;
 908         }
 909
 910         function record( $test, $result ) {
 911                 $this->total++;
 912                 $this->success += ($result ? 1 : 0);
 913         }
 914
 915         function end() {
 916                 // dummy
 917         }
 918
 919         function report() {
 920                 if( $this->total > 0 ) {
 921                         $this->reportPercentage( $this->success, $this->total );
 922                 } else {
 923                         wfDie( "No tests found.\n" );
 924                 }
 925         }
 926
 927         function reportPercentage( $success, $total ) {
 928                 $ratio = wfPercent( 100 * $success / $total );
 929                 print $this->term->color( 1 ) . "Passed $success of $total tests ($ratio)... ";
 930                 if( $success == $total ) {
 931                         print $this->term->color( 32 ) . "PASSED!";
 932                 } else {
 933                         print $this->term->color( 31 ) . "FAILED!";
 934                 }
 935                 print $this->term->reset() . "\n";
 936                 return ($success == $total);
 937         }
 938 }
 939
 940 class DbTestRecorder extends TestRecorder  {
 941         private $db;      ///< Database connection to the main DB
 942         private $curRun;  ///< run ID number for the current run
 943         private $prevRun; ///< run ID number for the previous run, if any
 944
 945         function __construct( $term ) {
 946                 parent::__construct( $term );
 947                 $this->db = wfGetDB( DB_MASTER );
 948         }
 949
 950         /**
 951          * Set up result recording; insert a record for the run with the date
 952          * and all that fun stuff
 953          */
 954         function start() {
 955                 parent::start();
 956
 957                 $this->db->begin();
 958
 959                 // We'll make comparisons against the previous run later...
 960                 $this->prevRun = $this->db->selectField( 'testrun', 'MAX(tr_id)' );
 961
 962                 $this->db->insert( 'testrun',
 963                         array(
 964                                 'tr_date'        => $this->db->timestamp(),
 965                                 'tr_mw_version'  => SpecialVersion::getVersion(),
 966                                 'tr_php_version' => phpversion(),
 967                                 'tr_db_version'  => $this->db->getServerVersion(),
 968                                 'tr_uname'       => php_uname()
 969                         ),
 970                         __METHOD__ );
 971                 $this->curRun = $this->db->insertId();
 972         }
 973
 974         /**
 975          * Record an individual test item's success or failure to the db
 976          * @param string $test
 977          * @param bool $result
 978          */
 979         function record( $test, $result ) {
 980                 parent::record( $test, $result );
 981                 $this->db->insert( 'testitem',
 982                         array(
 983                                 'ti_run'     => $this->curRun,
 984                                 'ti_name'    => $test,
 985                                 'ti_success' => $result ? 1 : 0,
 986                         ),
 987                         __METHOD__ );
 988         }
 989
 990         /**
 991          * Commit transaction and clean up for result recording
 992          */
 993         function end() {
 994                 $this->db->commit();
 995                 parent::end();
 996         }
 997
 998         function report() {
 999                 if( $this->prevRun ) {
1000                         $table = array(
1001                                 array( 'previously failing test(s) now PASSING! :)', 0, 1 ),
1002                                 array( 'previously PASSING test(s) removed o_O', 1, null ),
1003                                 array( 'new PASSING test(s) :)', null, 1 ),
1004
1005                                 array( 'previously passing test(s) now FAILING! :(', 1, 0 ),
1006                                 array( 'previously FAILING test(s) removed O_o', 0, null ),
1007                                 array( 'new FAILING test(s) :(', null, 0 ),
1008                         );
1009                         foreach( $table as $criteria ) {
1010                                 list( $label, $before, $after ) = $criteria;
1011                                 $differences = $this->compareResult( $before, $after );
1012                                 if( $differences ) {
1013                                         $count = count($differences);
1014                                         printf( "%4d %s\n", $count, $label );
1015                                         foreach ($differences as $differing_test_name) {
1016                                                 print "      * $differing_test_name\n";
1017                                         }
1018                                 }
1019                         }
1020                 } else {
1021                         print "No previous test runs to compare against.\n";
1022                 }
1023                 parent::report();
1024         }
1025
1026         /**
1027          ** @desc: Returns an array of the test names with changed results, based on the specified
1028          **        before/after criteria.
1029          */
1030         private function compareResult( $before, $after ) {
1031                 $testitem = $this->db->tableName( 'testitem' );
1032                 $prevRun = intval( $this->prevRun );
1033                 $curRun = intval( $this->curRun );
1034                 $prevStatus = $this->condition( $before );
1035                 $curStatus = $this->condition( $after );
1036
1037                 // note: requires mysql >= ver 4.1 for subselects
1038                 if( is_null( $after ) ) {
1039                         $sql = "
1040                                 select prev.ti_name as t from $testitem as prev
1041                                         where prev.ti_run=$prevRun and
1042                                                 prev.ti_success $prevStatus and
1043                                                 (select current.ti_success from $testitem as current
1044                                                         where current.ti_run=$curRun
1045                                                                 and prev.ti_name=current.ti_name) $curStatus";
1046                 } else {
1047                         $sql = "
1048                                 select current.ti_name as t from $testitem as current
1049                                         where current.ti_run=$curRun and
1050                                                 current.ti_success $curStatus and
1051                                                 (select prev.ti_success from $testitem as prev
1052                                                         where prev.ti_run=$prevRun
1053                                                                 and prev.ti_name=current.ti_name) $prevStatus";
1054                 }
1055                 $result = $this->db->query( $sql, __METHOD__ );
1056                 $retval = array();
1057                 while ($row = $this->db->fetchObject( $result )) {
1058                         $retval[] = $row->t;
1059                 }
1060                 $this->db->freeResult( $result );
1061                 return $retval;
1062         }
1063
1064         /**
1065          ** @desc: Helper function for compareResult() database querying.
1066          */
1067         private function condition( $value ) {
1068                 if( is_null( $value ) ) {
1069                         return 'IS NULL';
1070                 } else {
1071                         return '=' . intval( $value );
1072                 }
1073         }
1074
1075 }
1076
1077 ?>