tests/phpunit/includes/MWNamespaceTest.php

   1 <?php
   2 /**
   3  * @author Antoine Musso
   4  * @copyright Copyright © 2011, Antoine Musso
   5  * @file
   6  */
   7
   8 class MWNamespaceTest extends MediaWikiTestCase {
   9
  10         protected function setUp() {
  11                 parent::setUp();
  12
  13                 $this->setMwGlobals( [
  14                         'wgContentNamespaces' => [ NS_MAIN ],
  15                         'wgNamespacesWithSubpages' => [
  16                                 NS_TALK => true,
  17                                 NS_USER => true,
  18                                 NS_USER_TALK => true,
  19                         ],
  20                         'wgCapitalLinks' => true,
  21                         'wgCapitalLinkOverrides' => [],
  22                         'wgNonincludableNamespaces' => [],
  23                 ] );
  24         }
  25
  26         /**
  27          * @todo Write more texts, handle $wgAllowImageMoving setting
  28          * @covers MWNamespace::isMovable
  29          */
  30         public function testIsMovable() {
  31                 $this->assertFalse( MWNamespace::isMovable( NS_SPECIAL ) );
  32         }
  33
  34         private function assertIsSubject( $ns ) {
  35                 $this->assertTrue( MWNamespace::isSubject( $ns ) );
  36         }
  37
  38         private function assertIsNotSubject( $ns ) {
  39                 $this->assertFalse( MWNamespace::isSubject( $ns ) );
  40         }
  41
  42         /**
  43          * Please make sure to change testIsTalk() if you change the assertions below
  44          * @covers MWNamespace::isSubject
  45          */
  46         public function testIsSubject() {
  47                 // Special namespaces
  48                 $this->assertIsSubject( NS_MEDIA );
  49                 $this->assertIsSubject( NS_SPECIAL );
  50
  51                 // Subject pages
  52                 $this->assertIsSubject( NS_MAIN );
  53                 $this->assertIsSubject( NS_USER );
  54                 $this->assertIsSubject( 100 ); # user defined
  55
  56                 // Talk pages
  57                 $this->assertIsNotSubject( NS_TALK );
  58                 $this->assertIsNotSubject( NS_USER_TALK );
  59                 $this->assertIsNotSubject( 101 ); # user defined
  60         }
  61
  62         private function assertIsTalk( $ns ) {
  63                 $this->assertTrue( MWNamespace::isTalk( $ns ) );
  64         }
  65
  66         private function assertIsNotTalk( $ns ) {
  67                 $this->assertFalse( MWNamespace::isTalk( $ns ) );
  68         }
  69
  70         /**
  71          * Reverse of testIsSubject().
  72          * Please update testIsSubject() if you change assertions below
  73          * @covers MWNamespace::isTalk
  74          */
  75         public function testIsTalk() {
  76                 // Special namespaces
  77                 $this->assertIsNotTalk( NS_MEDIA );
  78                 $this->assertIsNotTalk( NS_SPECIAL );
  79
  80                 // Subject pages
  81                 $this->assertIsNotTalk( NS_MAIN );
  82                 $this->assertIsNotTalk( NS_USER );
  83                 $this->assertIsNotTalk( 100 ); # user defined
  84
  85                 // Talk pages
  86                 $this->assertIsTalk( NS_TALK );
  87                 $this->assertIsTalk( NS_USER_TALK );
  88                 $this->assertIsTalk( 101 ); # user defined
  89         }
  90
  91         /**
  92          * @covers MWNamespace::getSubject
  93          */
  94         public function testGetSubject() {
  95                 // Special namespaces are their own subjects
  96                 $this->assertEquals( NS_MEDIA, MWNamespace::getSubject( NS_MEDIA ) );
  97                 $this->assertEquals( NS_SPECIAL, MWNamespace::getSubject( NS_SPECIAL ) );
  98
  99                 $this->assertEquals( NS_MAIN, MWNamespace::getSubject( NS_TALK ) );
 100                 $this->assertEquals( NS_USER, MWNamespace::getSubject( NS_USER_TALK ) );
 101         }
 102
 103         /**
 104          * Regular getTalk() calls
 105          * Namespaces without a talk page (NS_MEDIA, NS_SPECIAL) are tested in
 106          * the function testGetTalkExceptions()
 107          * @covers MWNamespace::getTalk
 108          */
 109         public function testGetTalk() {
 110                 $this->assertEquals( NS_TALK, MWNamespace::getTalk( NS_MAIN ) );
 111                 $this->assertEquals( NS_TALK, MWNamespace::getTalk( NS_TALK ) );
 112                 $this->assertEquals( NS_USER_TALK, MWNamespace::getTalk( NS_USER ) );
 113                 $this->assertEquals( NS_USER_TALK, MWNamespace::getTalk( NS_USER_TALK ) );
 114         }
 115
 116         /**
 117          * Exceptions with getTalk()
 118          * NS_MEDIA does not have talk pages. MediaWiki raise an exception for them.
 119          * @expectedException MWException
 120          * @covers MWNamespace::getTalk
 121          */
 122         public function testGetTalkExceptionsForNsMedia() {
 123                 $this->assertNull( MWNamespace::getTalk( NS_MEDIA ) );
 124         }
 125
 126         /**
 127          * Exceptions with getTalk()
 128          * NS_SPECIAL does not have talk pages. MediaWiki raise an exception for them.
 129          * @expectedException MWException
 130          * @covers MWNamespace::getTalk
 131          */
 132         public function testGetTalkExceptionsForNsSpecial() {
 133                 $this->assertNull( MWNamespace::getTalk( NS_SPECIAL ) );
 134         }
 135
 136         /**
 137          * Regular getAssociated() calls
 138          * Namespaces without an associated page (NS_MEDIA, NS_SPECIAL) are tested in
 139          * the function testGetAssociatedExceptions()
 140          * @covers MWNamespace::getAssociated
 141          */
 142         public function testGetAssociated() {
 143                 $this->assertEquals( NS_TALK, MWNamespace::getAssociated( NS_MAIN ) );
 144                 $this->assertEquals( NS_MAIN, MWNamespace::getAssociated( NS_TALK ) );
 145         }
 146
 147         # ## Exceptions with getAssociated()
 148         # ## NS_MEDIA and NS_SPECIAL do not have talk pages. MediaWiki raises
 149         # ## an exception for them.
 150         /**
 151          * @expectedException MWException
 152          * @covers MWNamespace::getAssociated
 153          */
 154         public function testGetAssociatedExceptionsForNsMedia() {
 155                 $this->assertNull( MWNamespace::getAssociated( NS_MEDIA ) );
 156         }
 157
 158         /**
 159          * @expectedException MWException
 160          * @covers MWNamespace::getAssociated
 161          */
 162         public function testGetAssociatedExceptionsForNsSpecial() {
 163                 $this->assertNull( MWNamespace::getAssociated( NS_SPECIAL ) );
 164         }
 165
 166         /**
 167          * Test MWNamespace::equals
 168          * Note if we add a namespace registration system with keys like 'MAIN'
 169          * we should add tests here for equivilance on things like 'MAIN' == 0
 170          * and 'MAIN' == NS_MAIN.
 171          * @covers MWNamespace::equals
 172          */
 173         public function testEquals() {
 174                 $this->assertTrue( MWNamespace::equals( NS_MAIN, NS_MAIN ) );
 175                 $this->assertTrue( MWNamespace::equals( NS_MAIN, 0 ) ); // In case we make NS_MAIN 'MAIN'
 176                 $this->assertTrue( MWNamespace::equals( NS_USER, NS_USER ) );
 177                 $this->assertTrue( MWNamespace::equals( NS_USER, 2 ) );
 178                 $this->assertTrue( MWNamespace::equals( NS_USER_TALK, NS_USER_TALK ) );
 179                 $this->assertTrue( MWNamespace::equals( NS_SPECIAL, NS_SPECIAL ) );
 180                 $this->assertFalse( MWNamespace::equals( NS_MAIN, NS_TALK ) );
 181                 $this->assertFalse( MWNamespace::equals( NS_USER, NS_USER_TALK ) );
 182                 $this->assertFalse( MWNamespace::equals( NS_PROJECT, NS_TEMPLATE ) );
 183         }
 184
 185         /**
 186          * @covers MWNamespace::subjectEquals
 187          */
 188         public function testSubjectEquals() {
 189                 $this->assertSameSubject( NS_MAIN, NS_MAIN );
 190                 $this->assertSameSubject( NS_MAIN, 0 ); // In case we make NS_MAIN 'MAIN'
 191                 $this->assertSameSubject( NS_USER, NS_USER );
 192                 $this->assertSameSubject( NS_USER, 2 );
 193                 $this->assertSameSubject( NS_USER_TALK, NS_USER_TALK );
 194                 $this->assertSameSubject( NS_SPECIAL, NS_SPECIAL );
 195                 $this->assertSameSubject( NS_MAIN, NS_TALK );
 196                 $this->assertSameSubject( NS_USER, NS_USER_TALK );
 197
 198                 $this->assertDifferentSubject( NS_PROJECT, NS_TEMPLATE );
 199                 $this->assertDifferentSubject( NS_SPECIAL, NS_MAIN );
 200         }
 201
 202         /**
 203          * @covers MWNamespace::subjectEquals
 204          */
 205         public function testSpecialAndMediaAreDifferentSubjects() {
 206                 $this->assertDifferentSubject(
 207                         NS_MEDIA, NS_SPECIAL,
 208                         "NS_MEDIA and NS_SPECIAL are different subject namespaces"
 209                 );
 210                 $this->assertDifferentSubject(
 211                         NS_SPECIAL, NS_MEDIA,
 212                         "NS_SPECIAL and NS_MEDIA are different subject namespaces"
 213                 );
 214         }
 215
 216         public function provideHasTalkNamespace() {
 217                 return [
 218                         [ NS_MEDIA, false ],
 219                         [ NS_SPECIAL, false ],
 220
 221                         [ NS_MAIN, true ],
 222                         [ NS_TALK, true ],
 223                         [ NS_USER, true ],
 224                         [ NS_USER_TALK, true ],
 225
 226                         [ 100, true ],
 227                         [ 101, true ],
 228                 ];
 229         }
 230
 231         /**
 232          * @dataProvider provideHasTalkNamespace
 233          * @covers MWNamespace::hasTalkNamespace
 234          *
 235          * @param int $index
 236          * @param bool $expected
 237          */
 238         public function testHasTalkNamespace( $index, $expected ) {
 239                 $actual = MWNamespace::hasTalkNamespace( $index );
 240                 $this->assertSame( $actual, $expected, "NS $index" );
 241         }
 242
 243         /**
 244          * @dataProvider provideHasTalkNamespace
 245          * @covers MWNamespace::canTalk
 246          *
 247          * @param int $index
 248          * @param bool $expected
 249          */
 250         public function testCanTalk( $index, $expected ) {
 251                 $actual = MWNamespace::canTalk( $index );
 252                 $this->assertSame( $actual, $expected, "NS $index" );
 253         }
 254
 255         private function assertIsContent( $ns ) {
 256                 $this->assertTrue( MWNamespace::isContent( $ns ) );
 257         }
 258
 259         private function assertIsNotContent( $ns ) {
 260                 $this->assertFalse( MWNamespace::isContent( $ns ) );
 261         }
 262
 263         /**
 264          * @covers MWNamespace::isContent
 265          */
 266         public function testIsContent() {
 267                 // NS_MAIN is a content namespace per DefaultSettings.php
 268                 // and per function definition.
 269
 270                 $this->assertIsContent( NS_MAIN );
 271
 272                 // Other namespaces which are not expected to be content
 273
 274                 $this->assertIsNotContent( NS_MEDIA );
 275                 $this->assertIsNotContent( NS_SPECIAL );
 276                 $this->assertIsNotContent( NS_TALK );
 277                 $this->assertIsNotContent( NS_USER );
 278                 $this->assertIsNotContent( NS_CATEGORY );
 279                 $this->assertIsNotContent( 100 );
 280         }
 281
 282         /**
 283          * Similar to testIsContent() but alters the $wgContentNamespaces
 284          * global variable.
 285          * @covers MWNamespace::isContent
 286          */
 287         public function testIsContentAdvanced() {
 288                 global $wgContentNamespaces;
 289
 290                 // Test that user defined namespace #252 is not content
 291                 $this->assertIsNotContent( 252 );
 292
 293                 // Bless namespace # 252 as a content namespace
 294                 $wgContentNamespaces[] = 252;
 295
 296                 $this->assertIsContent( 252 );
 297
 298                 // Makes sure NS_MAIN was not impacted
 299                 $this->assertIsContent( NS_MAIN );
 300         }
 301
 302         private function assertIsWatchable( $ns ) {
 303                 $this->assertTrue( MWNamespace::isWatchable( $ns ) );
 304         }
 305
 306         private function assertIsNotWatchable( $ns ) {
 307                 $this->assertFalse( MWNamespace::isWatchable( $ns ) );
 308         }
 309
 310         /**
 311          * @covers MWNamespace::isWatchable
 312          */
 313         public function testIsWatchable() {
 314                 // Specials namespaces are not watchable
 315                 $this->assertIsNotWatchable( NS_MEDIA );
 316                 $this->assertIsNotWatchable( NS_SPECIAL );
 317
 318                 // Core defined namespaces are watchables
 319                 $this->assertIsWatchable( NS_MAIN );
 320                 $this->assertIsWatchable( NS_TALK );
 321
 322                 // Additional, user defined namespaces are watchables
 323                 $this->assertIsWatchable( 100 );
 324                 $this->assertIsWatchable( 101 );
 325         }
 326
 327         private function assertHasSubpages( $ns ) {
 328                 $this->assertTrue( MWNamespace::hasSubpages( $ns ) );
 329         }
 330
 331         private function assertHasNotSubpages( $ns ) {
 332                 $this->assertFalse( MWNamespace::hasSubpages( $ns ) );
 333         }
 334
 335         /**
 336          * @covers MWNamespace::hasSubpages
 337          */
 338         public function testHasSubpages() {
 339                 global $wgNamespacesWithSubpages;
 340
 341                 // Special namespaces:
 342                 $this->assertHasNotSubpages( NS_MEDIA );
 343                 $this->assertHasNotSubpages( NS_SPECIAL );
 344
 345                 // Namespaces without subpages
 346                 $this->assertHasNotSubpages( NS_MAIN );
 347
 348                 $wgNamespacesWithSubpages[NS_MAIN] = true;
 349                 $this->assertHasSubpages( NS_MAIN );
 350
 351                 $wgNamespacesWithSubpages[NS_MAIN] = false;
 352                 $this->assertHasNotSubpages( NS_MAIN );
 353
 354                 // Some namespaces with subpages
 355                 $this->assertHasSubpages( NS_TALK );
 356                 $this->assertHasSubpages( NS_USER );
 357                 $this->assertHasSubpages( NS_USER_TALK );
 358         }
 359
 360         /**
 361          * @covers MWNamespace::getContentNamespaces
 362          */
 363         public function testGetContentNamespaces() {
 364                 global $wgContentNamespaces;
 365
 366                 $this->assertEquals(
 367                         [ NS_MAIN ],
 368                         MWNamespace::getContentNamespaces(),
 369                         '$wgContentNamespaces is an array with only NS_MAIN by default'
 370                 );
 371
 372                 # test !is_array( $wgcontentNamespaces )
 373                 $wgContentNamespaces = '';
 374                 $this->assertEquals( [ NS_MAIN ], MWNamespace::getContentNamespaces() );
 375
 376                 $wgContentNamespaces = false;
 377                 $this->assertEquals( [ NS_MAIN ], MWNamespace::getContentNamespaces() );
 378
 379                 $wgContentNamespaces = null;
 380                 $this->assertEquals( [ NS_MAIN ], MWNamespace::getContentNamespaces() );
 381
 382                 $wgContentNamespaces = 5;
 383                 $this->assertEquals( [ NS_MAIN ], MWNamespace::getContentNamespaces() );
 384
 385                 # test $wgContentNamespaces === []
 386                 $wgContentNamespaces = [];
 387                 $this->assertEquals( [ NS_MAIN ], MWNamespace::getContentNamespaces() );
 388
 389                 # test !in_array( NS_MAIN, $wgContentNamespaces )
 390                 $wgContentNamespaces = [ NS_USER, NS_CATEGORY ];
 391                 $this->assertEquals(
 392                         [ NS_MAIN, NS_USER, NS_CATEGORY ],
 393                         MWNamespace::getContentNamespaces(),
 394                         'NS_MAIN is forced in $wgContentNamespaces even if unwanted'
 395                 );
 396
 397                 # test other cases, return $wgcontentNamespaces as is
 398                 $wgContentNamespaces = [ NS_MAIN ];
 399                 $this->assertEquals(
 400                         [ NS_MAIN ],
 401                         MWNamespace::getContentNamespaces()
 402                 );
 403
 404                 $wgContentNamespaces = [ NS_MAIN, NS_USER, NS_CATEGORY ];
 405                 $this->assertEquals(
 406                         [ NS_MAIN, NS_USER, NS_CATEGORY ],
 407                         MWNamespace::getContentNamespaces()
 408                 );
 409         }
 410
 411         /**
 412          * @covers MWNamespace::getSubjectNamespaces
 413          */
 414         public function testGetSubjectNamespaces() {
 415                 $subjectsNS = MWNamespace::getSubjectNamespaces();
 416                 $this->assertContains( NS_MAIN, $subjectsNS,
 417                         "Talk namespaces should have NS_MAIN" );
 418                 $this->assertNotContains( NS_TALK, $subjectsNS,
 419                         "Talk namespaces should have NS_TALK" );
 420
 421                 $this->assertNotContains( NS_MEDIA, $subjectsNS,
 422                         "Talk namespaces should not have NS_MEDIA" );
 423                 $this->assertNotContains( NS_SPECIAL, $subjectsNS,
 424                         "Talk namespaces should not have NS_SPECIAL" );
 425         }
 426
 427         /**
 428          * @covers MWNamespace::getTalkNamespaces
 429          */
 430         public function testGetTalkNamespaces() {
 431                 $talkNS = MWNamespace::getTalkNamespaces();
 432                 $this->assertContains( NS_TALK, $talkNS,
 433                         "Subject namespaces should have NS_TALK" );
 434                 $this->assertNotContains( NS_MAIN, $talkNS,
 435                         "Subject namespaces should not have NS_MAIN" );
 436
 437                 $this->assertNotContains( NS_MEDIA, $talkNS,
 438                         "Subject namespaces should not have NS_MEDIA" );
 439                 $this->assertNotContains( NS_SPECIAL, $talkNS,
 440                         "Subject namespaces should not have NS_SPECIAL" );
 441         }
 442
 443         private function assertIsCapitalized( $ns ) {
 444                 $this->assertTrue( MWNamespace::isCapitalized( $ns ) );
 445         }
 446
 447         private function assertIsNotCapitalized( $ns ) {
 448                 $this->assertFalse( MWNamespace::isCapitalized( $ns ) );
 449         }
 450
 451         /**
 452          * Some namespaces are always capitalized per code definition
 453          * in MWNamespace::$alwaysCapitalizedNamespaces
 454          * @covers MWNamespace::isCapitalized
 455          */
 456         public function testIsCapitalizedHardcodedAssertions() {
 457                 // NS_MEDIA and NS_FILE are treated the same
 458                 $this->assertEquals(
 459                         MWNamespace::isCapitalized( NS_MEDIA ),
 460                         MWNamespace::isCapitalized( NS_FILE ),
 461                         'NS_MEDIA and NS_FILE have same capitalization rendering'
 462                 );
 463
 464                 // Boths are capitalized by default
 465                 $this->assertIsCapitalized( NS_MEDIA );
 466                 $this->assertIsCapitalized( NS_FILE );
 467
 468                 // Always capitalized namespaces
 469                 // @see MWNamespace::$alwaysCapitalizedNamespaces
 470                 $this->assertIsCapitalized( NS_SPECIAL );
 471                 $this->assertIsCapitalized( NS_USER );
 472                 $this->assertIsCapitalized( NS_MEDIAWIKI );
 473         }
 474
 475         /**
 476          * Follows up for testIsCapitalizedHardcodedAssertions() but alter the
 477          * global $wgCapitalLink setting to have extended coverage.
 478          *
 479          * MWNamespace::isCapitalized() rely on two global settings:
 480          *   $wgCapitalLinkOverrides = []; by default
 481          *   $wgCapitalLinks = true; by default
 482          * This function test $wgCapitalLinks
 483          *
 484          * Global setting correctness is tested against the NS_PROJECT and
 485          * NS_PROJECT_TALK namespaces since they are not hardcoded nor specials
 486          * @covers MWNamespace::isCapitalized
 487          */
 488         public function testIsCapitalizedWithWgCapitalLinks() {
 489                 global $wgCapitalLinks;
 490
 491                 $this->assertIsCapitalized( NS_PROJECT );
 492                 $this->assertIsCapitalized( NS_PROJECT_TALK );
 493
 494                 $wgCapitalLinks = false;
 495
 496                 // hardcoded namespaces (see above function) are still capitalized:
 497                 $this->assertIsCapitalized( NS_SPECIAL );
 498                 $this->assertIsCapitalized( NS_USER );
 499                 $this->assertIsCapitalized( NS_MEDIAWIKI );
 500
 501                 // setting is correctly applied
 502                 $this->assertIsNotCapitalized( NS_PROJECT );
 503                 $this->assertIsNotCapitalized( NS_PROJECT_TALK );
 504         }
 505
 506         /**
 507          * Counter part for MWNamespace::testIsCapitalizedWithWgCapitalLinks() now
 508          * testing the $wgCapitalLinkOverrides global.
 509          *
 510          * @todo split groups of assertions in autonomous testing functions
 511          * @covers MWNamespace::isCapitalized
 512          */
 513         public function testIsCapitalizedWithWgCapitalLinkOverrides() {
 514                 global $wgCapitalLinkOverrides;
 515
 516                 // Test default settings
 517                 $this->assertIsCapitalized( NS_PROJECT );
 518                 $this->assertIsCapitalized( NS_PROJECT_TALK );
 519
 520                 // hardcoded namespaces (see above function) are capitalized:
 521                 $this->assertIsCapitalized( NS_SPECIAL );
 522                 $this->assertIsCapitalized( NS_USER );
 523                 $this->assertIsCapitalized( NS_MEDIAWIKI );
 524
 525                 // Hardcoded namespaces remains capitalized
 526                 $wgCapitalLinkOverrides[NS_SPECIAL] = false;
 527                 $wgCapitalLinkOverrides[NS_USER] = false;
 528                 $wgCapitalLinkOverrides[NS_MEDIAWIKI] = false;
 529
 530                 $this->assertIsCapitalized( NS_SPECIAL );
 531                 $this->assertIsCapitalized( NS_USER );
 532                 $this->assertIsCapitalized( NS_MEDIAWIKI );
 533
 534                 $wgCapitalLinkOverrides[NS_PROJECT] = false;
 535                 $this->assertIsNotCapitalized( NS_PROJECT );
 536
 537                 $wgCapitalLinkOverrides[NS_PROJECT] = true;
 538                 $this->assertIsCapitalized( NS_PROJECT );
 539
 540                 unset( $wgCapitalLinkOverrides[NS_PROJECT] );
 541                 $this->assertIsCapitalized( NS_PROJECT );
 542         }
 543
 544         /**
 545          * @covers MWNamespace::hasGenderDistinction
 546          */
 547         public function testHasGenderDistinction() {
 548                 // Namespaces with gender distinctions
 549                 $this->assertTrue( MWNamespace::hasGenderDistinction( NS_USER ) );
 550                 $this->assertTrue( MWNamespace::hasGenderDistinction( NS_USER_TALK ) );
 551
 552                 // Other ones, "genderless"
 553                 $this->assertFalse( MWNamespace::hasGenderDistinction( NS_MEDIA ) );
 554                 $this->assertFalse( MWNamespace::hasGenderDistinction( NS_SPECIAL ) );
 555                 $this->assertFalse( MWNamespace::hasGenderDistinction( NS_MAIN ) );
 556                 $this->assertFalse( MWNamespace::hasGenderDistinction( NS_TALK ) );
 557         }
 558
 559         /**
 560          * @covers MWNamespace::isNonincludable
 561          */
 562         public function testIsNonincludable() {
 563                 global $wgNonincludableNamespaces;
 564
 565                 $wgNonincludableNamespaces = [ NS_USER ];
 566
 567                 $this->assertTrue( MWNamespace::isNonincludable( NS_USER ) );
 568                 $this->assertFalse( MWNamespace::isNonincludable( NS_TEMPLATE ) );
 569         }
 570
 571         private function assertSameSubject( $ns1, $ns2, $msg = '' ) {
 572                 $this->assertTrue( MWNamespace::subjectEquals( $ns1, $ns2 ), $msg );
 573         }
 574
 575         private function assertDifferentSubject( $ns1, $ns2, $msg = '' ) {
 576                 $this->assertFalse( MWNamespace::subjectEquals( $ns1, $ns2 ), $msg );
 577         }
 578 }