tests/phpunit/includes/TitleTest.php

   1 <?php
   2
   3 /**
   4  * @group Database
   5  * @group Title
   6  */
   7 class TitleTest extends MediaWikiTestCase {
   8         protected function setUp() {
   9                 parent::setUp();
  10
  11                 $this->setMwGlobals( array(
  12                         'wgLanguageCode' => 'en',
  13                         'wgContLang' => Language::factory( 'en' ),
  14                         // User language
  15                         'wgLang' => Language::factory( 'en' ),
  16                         'wgAllowUserJs' => false,
  17                         'wgDefaultLanguageVariant' => false,
  18                         'wgMetaNamespace' => 'Project',
  19                 ) );
  20         }
  21
  22         /**
  23          * @covers Title::legalChars
  24          */
  25         public function testLegalChars() {
  26                 $titlechars = Title::legalChars();
  27
  28                 foreach ( range( 1, 255 ) as $num ) {
  29                         $chr = chr( $num );
  30                         if ( strpos( "#[]{}<>|", $chr ) !== false || preg_match( "/[\\x00-\\x1f\\x7f]/", $chr ) ) {
  31                                 $this->assertFalse(
  32                                         (bool)preg_match( "/[$titlechars]/", $chr ),
  33                                         "chr($num) = $chr is not a valid titlechar"
  34                                 );
  35                         } else {
  36                                 $this->assertTrue(
  37                                         (bool)preg_match( "/[$titlechars]/", $chr ),
  38                                         "chr($num) = $chr is a valid titlechar"
  39                                 );
  40                         }
  41                 }
  42         }
  43
  44         public static function provideValidSecureAndSplit() {
  45                 return array(
  46                         array( 'Sandbox' ),
  47                         array( 'A "B"' ),
  48                         array( 'A \'B\'' ),
  49                         array( '.com' ),
  50                         array( '~' ),
  51                         array( '#' ),
  52                         array( '"' ),
  53                         array( '\'' ),
  54                         array( 'Talk:Sandbox' ),
  55                         array( 'Talk:Foo:Sandbox' ),
  56                         array( 'File:Example.svg' ),
  57                         array( 'File_talk:Example.svg' ),
  58                         array( 'Foo/.../Sandbox' ),
  59                         array( 'Sandbox/...' ),
  60                         array( 'A~~' ),
  61                         array( ':A' ),
  62                         // Length is 256 total, but only title part matters
  63                         array( 'Category:' . str_repeat( 'x', 248 ) ),
  64                         array( str_repeat( 'x', 252 ) ),
  65                         // interwiki prefix
  66                         array( 'localtestiw: #anchor' ),
  67                         array( 'localtestiw:' ),
  68                         array( 'localtestiw:foo' ),
  69                         array( 'localtestiw: foo # anchor' ),
  70                         array( 'localtestiw: Talk: Sandbox # anchor' ),
  71                         array( 'remotetestiw:' ),
  72                         array( 'remotetestiw: Talk: # anchor' ),
  73                         array( 'remotetestiw: #bar' ),
  74                         array( 'remotetestiw: Talk:' ),
  75                         array( 'remotetestiw: Talk: Foo' ),
  76                         array( 'localtestiw:remotetestiw:' ),
  77                         array( 'localtestiw:remotetestiw:foo' )
  78                 );
  79         }
  80
  81         public static function provideInvalidSecureAndSplit() {
  82                 return array(
  83                         array( '', 'title-invalid-empty' ),
  84                         array( ':', 'title-invalid-empty' ),
  85                         array( '__  __', 'title-invalid-empty' ),
  86                         array( '  __  ', 'title-invalid-empty' ),
  87                         // Bad characters forbidden regardless of wgLegalTitleChars
  88                         array( 'A [ B', 'title-invalid-characters' ),
  89                         array( 'A ] B', 'title-invalid-characters' ),
  90                         array( 'A { B', 'title-invalid-characters' ),
  91                         array( 'A } B', 'title-invalid-characters' ),
  92                         array( 'A < B', 'title-invalid-characters' ),
  93                         array( 'A > B', 'title-invalid-characters' ),
  94                         array( 'A | B', 'title-invalid-characters' ),
  95                         // URL encoding
  96                         array( 'A%20B', 'title-invalid-characters' ),
  97                         array( 'A%23B', 'title-invalid-characters' ),
  98                         array( 'A%2523B', 'title-invalid-characters' ),
  99                         // XML/HTML character entity references
 100                         // Note: Commented out because they are not marked invalid by the PHP test as
 101                         // Title::newFromText runs Sanitizer::decodeCharReferencesAndNormalize first.
 102                         // 'A &eacute; B',
 103                         // 'A &#233; B',
 104                         // 'A &#x00E9; B',
 105                         // Subject of NS_TALK does not roundtrip to NS_MAIN
 106                         array( 'Talk:File:Example.svg', 'title-invalid-talk-namespace' ),
 107                         // Directory navigation
 108                         array( '.', 'title-invalid-relative' ),
 109                         array( '..', 'title-invalid-relative' ),
 110                         array( './Sandbox', 'title-invalid-relative' ),
 111                         array( '../Sandbox', 'title-invalid-relative' ),
 112                         array( 'Foo/./Sandbox', 'title-invalid-relative' ),
 113                         array( 'Foo/../Sandbox', 'title-invalid-relative' ),
 114                         array( 'Sandbox/.', 'title-invalid-relative' ),
 115                         array( 'Sandbox/..', 'title-invalid-relative' ),
 116                         // Tilde
 117                         array( 'A ~~~ Name', 'title-invalid-magic-tilde' ),
 118                         array( 'A ~~~~ Signature', 'title-invalid-magic-tilde' ),
 119                         array( 'A ~~~~~ Timestamp', 'title-invalid-magic-tilde' ),
 120                         // Length
 121                         array( str_repeat( 'x', 256 ), 'title-invalid-too-long' ),
 122                         // Namespace prefix without actual title
 123                         array( 'Talk:', 'title-invalid-empty' ),
 124                         array( 'Talk:#', 'title-invalid-empty' ),
 125                         array( 'Category: ', 'title-invalid-empty' ),
 126                         array( 'Category: #bar', 'title-invalid-empty' ),
 127                         // interwiki prefix
 128                         array( 'localtestiw: Talk: # anchor', 'title-invalid-empty' ),
 129                         array( 'localtestiw: Talk:', 'title-invalid-empty' )
 130                 );
 131         }
 132
 133         private function secureAndSplitGlobals() {
 134                 $this->setMwGlobals( array(
 135                         'wgLocalInterwikis' => array( 'localtestiw' ),
 136                         'wgHooks' => array(
 137                                 'InterwikiLoadPrefix' => array(
 138                                         function ( $prefix, &$data ) {
 139                                                 if ( $prefix === 'localtestiw' ) {
 140                                                         $data = array( 'iw_url' => 'localtestiw' );
 141                                                 } elseif ( $prefix === 'remotetestiw' ) {
 142                                                         $data = array( 'iw_url' => 'remotetestiw' );
 143                                                 }
 144                                                 return false;
 145                                         }
 146                                 )
 147                         )
 148                 ) );
 149         }
 150
 151         /**
 152          * See also mediawiki.Title.test.js
 153          * @covers Title::secureAndSplit
 154          * @dataProvider provideValidSecureAndSplit
 155          * @note This mainly tests MediaWikiTitleCodec::parseTitle().
 156          */
 157         public function testSecureAndSplitValid( $text ) {
 158                 $this->secureAndSplitGlobals();
 159                 $this->assertInstanceOf( 'Title', Title::newFromText( $text ), "Valid: $text" );
 160         }
 161
 162         /**
 163          * See also mediawiki.Title.test.js
 164          * @covers Title::secureAndSplit
 165          * @dataProvider provideInvalidSecureAndSplit
 166          * @note This mainly tests MediaWikiTitleCodec::parseTitle().
 167          */
 168         public function testSecureAndSplitInvalid( $text, $expectedErrorMessage ) {
 169                 $this->secureAndSplitGlobals();
 170                 try {
 171                         Title::newFromTextThrow( $text ); // should throw
 172                         $this->assertTrue( false, "Invalid: $text" );
 173                 } catch ( MalformedTitleException $ex ) {
 174                         $this->assertEquals( $expectedErrorMessage, $ex->getErrorMessage(), "Invalid: $text" );
 175                 }
 176         }
 177
 178         public static function provideConvertByteClassToUnicodeClass() {
 179                 return array(
 180                         array(
 181                                 ' %!"$&\'()*,\\-.\\/0-9:;=?@A-Z\\\\^_`a-z~\\x80-\\xFF+',
 182                                 ' %!"$&\'()*,\\-./0-9:;=?@A-Z\\\\\\^_`a-z~+\\u0080-\\uFFFF',
 183                         ),
 184                         array(
 185                                 'QWERTYf-\\xFF+',
 186                                 'QWERTYf-\\x7F+\\u0080-\\uFFFF',
 187                         ),
 188                         array(
 189                                 'QWERTY\\x66-\\xFD+',
 190                                 'QWERTYf-\\x7F+\\u0080-\\uFFFF',
 191                         ),
 192                         array(
 193                                 'QWERTYf-y+',
 194                                 'QWERTYf-y+',
 195                         ),
 196                         array(
 197                                 'QWERTYf-\\x80+',
 198                                 'QWERTYf-\\x7F+\\u0080-\\uFFFF',
 199                         ),
 200                         array(
 201                                 'QWERTY\\x66-\\x80+\\x23',
 202                                 'QWERTYf-\\x7F+#\\u0080-\\uFFFF',
 203                         ),
 204                         array(
 205                                 'QWERTY\\x66-\\x80+\\xD3',
 206                                 'QWERTYf-\\x7F+\\u0080-\\uFFFF',
 207                         ),
 208                         array(
 209                                 '\\\\\\x99',
 210                                 '\\\\\\u0080-\\uFFFF',
 211                         ),
 212                         array(
 213                                 '-\\x99',
 214                                 '\\-\\u0080-\\uFFFF',
 215                         ),
 216                         array(
 217                                 'QWERTY\\-\\x99',
 218                                 'QWERTY\\-\\u0080-\\uFFFF',
 219                         ),
 220                         array(
 221                                 '\\\\x99',
 222                                 '\\\\x99',
 223                         ),
 224                         array(
 225                                 'A-\\x9F',
 226                                 'A-\\x7F\\u0080-\\uFFFF',
 227                         ),
 228                         array(
 229                                 '\\x66-\\x77QWERTY\\x88-\\x91FXZ',
 230                                 'f-wQWERTYFXZ\\u0080-\\uFFFF',
 231                         ),
 232                         array(
 233                                 '\\x66-\\x99QWERTY\\xAA-\\xEEFXZ',
 234                                 'f-\\x7FQWERTYFXZ\\u0080-\\uFFFF',
 235                         ),
 236                 );
 237         }
 238
 239         /**
 240          * @dataProvider provideConvertByteClassToUnicodeClass
 241          * @covers Title::convertByteClassToUnicodeClass
 242          */
 243         public function testConvertByteClassToUnicodeClass( $byteClass, $unicodeClass ) {
 244                 $this->assertEquals( $unicodeClass, Title::convertByteClassToUnicodeClass( $byteClass ) );
 245         }
 246
 247         /**
 248          * @dataProvider provideSpecialNamesWithAndWithoutParameter
 249          * @covers Title::fixSpecialName
 250          */
 251         public function testFixSpecialNameRetainsParameter( $text, $expectedParam ) {
 252                 $title = Title::newFromText( $text );
 253                 $fixed = $title->fixSpecialName();
 254                 $stuff = explode( '/', $fixed->getDBkey(), 2 );
 255                 if ( count( $stuff ) == 2 ) {
 256                         $par = $stuff[1];
 257                 } else {
 258                         $par = null;
 259                 }
 260                 $this->assertEquals(
 261                         $expectedParam,
 262                         $par,
 263                         "Bug 31100 regression check: Title->fixSpecialName() should preserve parameter"
 264                 );
 265         }
 266
 267         public static function provideSpecialNamesWithAndWithoutParameter() {
 268                 return array(
 269                         array( 'Special:Version', null ),
 270                         array( 'Special:Version/', '' ),
 271                         array( 'Special:Version/param', 'param' ),
 272                 );
 273         }
 274
 275         /**
 276          * Auth-less test of Title::isValidMoveOperation
 277          *
 278          * @group Database
 279          * @param string $source
 280          * @param string $target
 281          * @param array|string|bool $expected Required error
 282          * @dataProvider provideTestIsValidMoveOperation
 283          * @covers Title::isValidMoveOperation
 284          * @covers Title::validateFileMoveOperation
 285          */
 286         public function testIsValidMoveOperation( $source, $target, $expected ) {
 287                 $this->setMwGlobals( 'wgContentHandlerUseDB', false );
 288                 $title = Title::newFromText( $source );
 289                 $nt = Title::newFromText( $target );
 290                 $errors = $title->isValidMoveOperation( $nt, false );
 291                 if ( $expected === true ) {
 292                         $this->assertTrue( $errors );
 293                 } else {
 294                         $errors = $this->flattenErrorsArray( $errors );
 295                         foreach ( (array)$expected as $error ) {
 296                                 $this->assertContains( $error, $errors );
 297                         }
 298                 }
 299         }
 300
 301         public static function provideTestIsValidMoveOperation() {
 302                 return array(
 303                         // for Title::isValidMoveOperation
 304                         array( 'Some page', '', 'badtitletext' ),
 305                         array( 'Test', 'Test', 'selfmove' ),
 306                         array( 'Special:FooBar', 'Test', 'immobile-source-namespace' ),
 307                         array( 'Test', 'Special:FooBar', 'immobile-target-namespace' ),
 308                         array( 'MediaWiki:Common.js', 'Help:Some wikitext page', 'bad-target-model' ),
 309                         array( 'Page', 'File:Test.jpg', 'nonfile-cannot-move-to-file' ),
 310                         // for Title::validateFileMoveOperation
 311                         array( 'File:Test.jpg', 'Page', 'imagenocrossnamespace' ),
 312                 );
 313         }
 314
 315         /**
 316          * Auth-less test of Title::userCan
 317          *
 318          * @param array $whitelistRegexp
 319          * @param string $source
 320          * @param string $action
 321          * @param array|string|bool $expected Required error
 322          *
 323          * @covers Title::checkReadPermissions
 324          * @dataProvider dataWgWhitelistReadRegexp
 325          */
 326         public function testWgWhitelistReadRegexp( $whitelistRegexp, $source, $action, $expected ) {
 327                 // $wgWhitelistReadRegexp must be an array. Since the provided test cases
 328                 // usually have only one regex, it is more concise to write the lonely regex
 329                 // as a string. Thus we cast to an array() to honor $wgWhitelistReadRegexp
 330                 // type requisite.
 331                 if ( is_string( $whitelistRegexp ) ) {
 332                         $whitelistRegexp = array( $whitelistRegexp );
 333                 }
 334
 335                 $this->setMwGlobals( array(
 336                         // So User::isEveryoneAllowed( 'read' ) === false
 337                         'wgGroupPermissions' => array( '*' => array( 'read' => false ) ),
 338                         'wgWhitelistRead' => array( 'some random non sense title' ),
 339                         'wgWhitelistReadRegexp' => $whitelistRegexp,
 340                 ) );
 341
 342                 $title = Title::newFromDBkey( $source );
 343
 344                 // New anonymous user with no rights
 345                 $user = new User;
 346                 $user->mRights = array();
 347                 $errors = $title->userCan( $action, $user );
 348
 349                 if ( is_bool( $expected ) ) {
 350                         # Forge the assertion message depending on the assertion expectation
 351                         $allowableness = $expected
 352                                 ? " should be allowed"
 353                                 : " should NOT be allowed";
 354                         $this->assertEquals(
 355                                 $expected,
 356                                 $errors,
 357                                 "User action '$action' on [[$source]] $allowableness."
 358                         );
 359                 } else {
 360                         $errors = $this->flattenErrorsArray( $errors );
 361                         foreach ( (array)$expected as $error ) {
 362                                 $this->assertContains( $error, $errors );
 363                         }
 364                 }
 365         }
 366
 367         /**
 368          * Provides test parameter values for testWgWhitelistReadRegexp()
 369          */
 370         public function dataWgWhitelistReadRegexp() {
 371                 $ALLOWED = true;
 372                 $DISALLOWED = false;
 373
 374                 return array(
 375                         // Everything, if this doesn't work, we're really in trouble
 376                         array( '/.*/', 'Main_Page', 'read', $ALLOWED ),
 377                         array( '/.*/', 'Main_Page', 'edit', $DISALLOWED ),
 378
 379                         // We validate against the title name, not the db key
 380                         array( '/^Main_Page$/', 'Main_Page', 'read', $DISALLOWED ),
 381                         // Main page
 382                         array( '/^Main/', 'Main_Page', 'read', $ALLOWED ),
 383                         array( '/^Main.*/', 'Main_Page', 'read', $ALLOWED ),
 384                         // With spaces
 385                         array( '/Mic\sCheck/', 'Mic Check', 'read', $ALLOWED ),
 386                         // Unicode multibyte
 387                         // ...without unicode modifier
 388                         array( '/Unicode Test . Yes/', 'Unicode Test Ñ Yes', 'read', $DISALLOWED ),
 389                         // ...with unicode modifier
 390                         array( '/Unicode Test . Yes/u', 'Unicode Test Ñ Yes', 'read', $ALLOWED ),
 391                         // Case insensitive
 392                         array( '/MiC ChEcK/', 'mic check', 'read', $DISALLOWED ),
 393                         array( '/MiC ChEcK/i', 'mic check', 'read', $ALLOWED ),
 394
 395                         // From DefaultSettings.php:
 396                         array( "@^UsEr.*@i", 'User is banned', 'read', $ALLOWED ),
 397                         array( "@^UsEr.*@i", 'User:John Doe', 'read', $ALLOWED ),
 398
 399                         // With namespaces:
 400                         array( '/^Special:NewPages$/', 'Special:NewPages', 'read', $ALLOWED ),
 401                         array( null, 'Special:Newpages', 'read', $DISALLOWED ),
 402
 403                 );
 404         }
 405
 406         public function flattenErrorsArray( $errors ) {
 407                 $result = array();
 408                 foreach ( $errors as $error ) {
 409                         $result[] = $error[0];
 410                 }
 411
 412                 return $result;
 413         }
 414
 415         /**
 416          * @dataProvider provideGetPageViewLanguage
 417          * @covers Title::getPageViewLanguage
 418          */
 419         public function testGetPageViewLanguage( $expected, $titleText, $contLang,
 420                 $lang, $variant, $msg = ''
 421         ) {
 422                 // Setup environnement for this test
 423                 $this->setMwGlobals( array(
 424                         'wgLanguageCode' => $contLang,
 425                         'wgContLang' => Language::factory( $contLang ),
 426                         'wgLang' => Language::factory( $lang ),
 427                         'wgDefaultLanguageVariant' => $variant,
 428                         'wgAllowUserJs' => true,
 429                 ) );
 430
 431                 $title = Title::newFromText( $titleText );
 432                 $this->assertInstanceOf( 'Title', $title,
 433                         "Test must be passed a valid title text, you gave '$titleText'"
 434                 );
 435                 $this->assertEquals( $expected,
 436                         $title->getPageViewLanguage()->getCode(),
 437                         $msg
 438                 );
 439         }
 440
 441         public static function provideGetPageViewLanguage() {
 442                 # Format:
 443                 # - expected
 444                 # - Title name
 445                 # - wgContLang (expected in most case)
 446                 # - wgLang (on some specific pages)
 447                 # - wgDefaultLanguageVariant
 448                 # - Optional message
 449                 return array(
 450                         array( 'fr', 'Help:I_need_somebody', 'fr', 'fr', false ),
 451                         array( 'es', 'Help:I_need_somebody', 'es', 'zh-tw', false ),
 452                         array( 'zh', 'Help:I_need_somebody', 'zh', 'zh-tw', false ),
 453
 454                         array( 'es', 'Help:I_need_somebody', 'es', 'zh-tw', 'zh-cn' ),
 455                         array( 'es', 'MediaWiki:About', 'es', 'zh-tw', 'zh-cn' ),
 456                         array( 'es', 'MediaWiki:About/', 'es', 'zh-tw', 'zh-cn' ),
 457                         array( 'de', 'MediaWiki:About/de', 'es', 'zh-tw', 'zh-cn' ),
 458                         array( 'en', 'MediaWiki:Common.js', 'es', 'zh-tw', 'zh-cn' ),
 459                         array( 'en', 'MediaWiki:Common.css', 'es', 'zh-tw', 'zh-cn' ),
 460                         array( 'en', 'User:JohnDoe/Common.js', 'es', 'zh-tw', 'zh-cn' ),
 461                         array( 'en', 'User:JohnDoe/Monobook.css', 'es', 'zh-tw', 'zh-cn' ),
 462
 463                         array( 'zh-cn', 'Help:I_need_somebody', 'zh', 'zh-tw', 'zh-cn' ),
 464                         array( 'zh', 'MediaWiki:About', 'zh', 'zh-tw', 'zh-cn' ),
 465                         array( 'zh', 'MediaWiki:About/', 'zh', 'zh-tw', 'zh-cn' ),
 466                         array( 'de', 'MediaWiki:About/de', 'zh', 'zh-tw', 'zh-cn' ),
 467                         array( 'zh-cn', 'MediaWiki:About/zh-cn', 'zh', 'zh-tw', 'zh-cn' ),
 468                         array( 'zh-tw', 'MediaWiki:About/zh-tw', 'zh', 'zh-tw', 'zh-cn' ),
 469                         array( 'en', 'MediaWiki:Common.js', 'zh', 'zh-tw', 'zh-cn' ),
 470                         array( 'en', 'MediaWiki:Common.css', 'zh', 'zh-tw', 'zh-cn' ),
 471                         array( 'en', 'User:JohnDoe/Common.js', 'zh', 'zh-tw', 'zh-cn' ),
 472                         array( 'en', 'User:JohnDoe/Monobook.css', 'zh', 'zh-tw', 'zh-cn' ),
 473
 474                         array( 'zh-tw', 'Special:NewPages', 'es', 'zh-tw', 'zh-cn' ),
 475                         array( 'zh-tw', 'Special:NewPages', 'zh', 'zh-tw', 'zh-cn' ),
 476
 477                 );
 478         }
 479
 480         /**
 481          * @dataProvider provideBaseTitleCases
 482          * @covers Title::getBaseText
 483          */
 484         public function testGetBaseText( $title, $expected, $msg = '' ) {
 485                 $title = Title::newFromText( $title );
 486                 $this->assertEquals( $expected,
 487                         $title->getBaseText(),
 488                         $msg
 489                 );
 490         }
 491
 492         public static function provideBaseTitleCases() {
 493                 return array(
 494                         # Title, expected base, optional message
 495                         array( 'User:John_Doe/subOne/subTwo', 'John Doe/subOne' ),
 496                         array( 'User:Foo/Bar/Baz', 'Foo/Bar' ),
 497                 );
 498         }
 499
 500         /**
 501          * @dataProvider provideRootTitleCases
 502          * @covers Title::getRootText
 503          */
 504         public function testGetRootText( $title, $expected, $msg = '' ) {
 505                 $title = Title::newFromText( $title );
 506                 $this->assertEquals( $expected,
 507                         $title->getRootText(),
 508                         $msg
 509                 );
 510         }
 511
 512         public static function provideRootTitleCases() {
 513                 return array(
 514                         # Title, expected base, optional message
 515                         array( 'User:John_Doe/subOne/subTwo', 'John Doe' ),
 516                         array( 'User:Foo/Bar/Baz', 'Foo' ),
 517                 );
 518         }
 519
 520         /**
 521          * @todo Handle $wgNamespacesWithSubpages cases
 522          * @dataProvider provideSubpageTitleCases
 523          * @covers Title::getSubpageText
 524          */
 525         public function testGetSubpageText( $title, $expected, $msg = '' ) {
 526                 $title = Title::newFromText( $title );
 527                 $this->assertEquals( $expected,
 528                         $title->getSubpageText(),
 529                         $msg
 530                 );
 531         }
 532
 533         public static function provideSubpageTitleCases() {
 534                 return array(
 535                         # Title, expected base, optional message
 536                         array( 'User:John_Doe/subOne/subTwo', 'subTwo' ),
 537                         array( 'User:John_Doe/subOne', 'subOne' ),
 538                 );
 539         }
 540
 541         public static function provideNewFromTitleValue() {
 542                 return array(
 543                         array( new TitleValue( NS_MAIN, 'Foo' ) ),
 544                         array( new TitleValue( NS_MAIN, 'Foo', 'bar' ) ),
 545                         array( new TitleValue( NS_USER, 'Hansi_Maier' ) ),
 546                 );
 547         }
 548
 549         /**
 550          * @dataProvider provideNewFromTitleValue
 551          */
 552         public function testNewFromTitleValue( TitleValue $value ) {
 553                 $title = Title::newFromTitleValue( $value );
 554
 555                 $dbkey = str_replace( ' ', '_', $value->getText() );
 556                 $this->assertEquals( $dbkey, $title->getDBkey() );
 557                 $this->assertEquals( $value->getNamespace(), $title->getNamespace() );
 558                 $this->assertEquals( $value->getFragment(), $title->getFragment() );
 559         }
 560
 561         public static function provideGetTitleValue() {
 562                 return array(
 563                         array( 'Foo' ),
 564                         array( 'Foo#bar' ),
 565                         array( 'User:Hansi_Maier' ),
 566                 );
 567         }
 568
 569         /**
 570          * @dataProvider provideGetTitleValue
 571          */
 572         public function testGetTitleValue( $text ) {
 573                 $title = Title::newFromText( $text );
 574                 $value = $title->getTitleValue();
 575
 576                 $dbkey = str_replace( ' ', '_', $value->getText() );
 577                 $this->assertEquals( $title->getDBkey(), $dbkey );
 578                 $this->assertEquals( $title->getNamespace(), $value->getNamespace() );
 579                 $this->assertEquals( $title->getFragment(), $value->getFragment() );
 580         }
 581
 582         public static function provideGetFragment() {
 583                 return array(
 584                         array( 'Foo', '' ),
 585                         array( 'Foo#bar', 'bar' ),
 586                         array( 'Foo#bär', 'bär' ),
 587
 588                         // Inner whitespace is normalized
 589                         array( 'Foo#bar_bar', 'bar bar' ),
 590                         array( 'Foo#bar bar', 'bar bar' ),
 591                         array( 'Foo#bar   bar', 'bar bar' ),
 592
 593                         // Leading whitespace is kept, trailing whitespace is trimmed.
 594                         // XXX: Is this really want we want?
 595                         array( 'Foo#_bar_bar_', ' bar bar' ),
 596                         array( 'Foo# bar bar ', ' bar bar' ),
 597                 );
 598         }
 599
 600         /**
 601          * @dataProvider provideGetFragment
 602          *
 603          * @param string $full
 604          * @param string $fragment
 605          */
 606         public function testGetFragment( $full, $fragment ) {
 607                 $title = Title::newFromText( $full );
 608                 $this->assertEquals( $fragment, $title->getFragment() );
 609         }
 610
 611         /**
 612          * @covers Title::isAlwaysKnown
 613          * @dataProvider provideIsAlwaysKnown
 614          * @param string $page
 615          * @param bool $isKnown
 616          */
 617         public function testIsAlwaysKnown( $page, $isKnown ) {
 618                 $title = Title::newFromText( $page );
 619                 $this->assertEquals( $isKnown, $title->isAlwaysKnown() );
 620         }
 621
 622         public static function provideIsAlwaysKnown() {
 623                 return array(
 624                         array( 'Some nonexistent page', false ),
 625                         array( 'UTPage', false ),
 626                         array( '#test', true ),
 627                         array( 'Special:BlankPage', true ),
 628                         array( 'Special:SomeNonexistentSpecialPage', false ),
 629                         array( 'MediaWiki:Parentheses', true ),
 630                         array( 'MediaWiki:Some nonexistent message', false ),
 631                 );
 632         }
 633
 634         /**
 635          * @covers Title::isAlwaysKnown
 636          */
 637         public function testIsAlwaysKnownOnInterwiki() {
 638                 $title = Title::makeTitle( NS_MAIN, 'Interwiki link', '', 'externalwiki' );
 639                 $this->assertTrue( $title->isAlwaysKnown() );
 640         }
 641
 642         /**
 643          * @covers Title::exists
 644          */
 645         public function testExists() {
 646                 $title = Title::makeTitle( NS_PROJECT, 'New page' );
 647                 $linkCache = LinkCache::singleton();
 648
 649                 $article = new Article( $title );
 650                 $page = $article->getPage();
 651                 $page->doEditContent( new WikitextContent( 'Some [[link]]' ), 'summary' );
 652
 653                 // Tell Title it doesn't know whether it exists
 654                 $title->mArticleID = -1;
 655
 656                 // Tell the link cache it doesn't exists when it really does
 657                 $linkCache->clearLink( $title );
 658                 $linkCache->addBadLinkObj( $title );
 659
 660                 $this->assertEquals( false, $title->exists(), 'exists() should rely on link cache unless GAID_FOR_UPDATE is used' );
 661                 $this->assertEquals( true, $title->exists( Title::GAID_FOR_UPDATE ), 'exists() should re-query database when GAID_FOR_UPDATE is used' );
 662         }
 663 }