tests/phpunit/includes/RevisionIntegrationTest.php

   1 <?php
   2
   3 /**
   4  * @group ContentHandler
   5  * @group Database
   6  *
   7  * @group medium
   8  */
   9 class RevisionIntegrationTest extends MediaWikiTestCase {
  10
  11         /**
  12          * @var WikiPage $testPage
  13          */
  14         private $testPage;
  15
  16         public function __construct( $name = null, array $data = [], $dataName = '' ) {
  17                 parent::__construct( $name, $data, $dataName );
  18
  19                 $this->tablesUsed = array_merge( $this->tablesUsed,
  20                         [
  21                                 'page',
  22                                 'revision',
  23                                 'ip_changes',
  24                                 'text',
  25                                 'archive',
  26
  27                                 'recentchanges',
  28                                 'logging',
  29
  30                                 'page_props',
  31                                 'pagelinks',
  32                                 'categorylinks',
  33                                 'langlinks',
  34                                 'externallinks',
  35                                 'imagelinks',
  36                                 'templatelinks',
  37                                 'iwlinks'
  38                         ]
  39                 );
  40         }
  41
  42         protected function setUp() {
  43                 global $wgContLang;
  44
  45                 parent::setUp();
  46
  47                 $this->mergeMwGlobalArrayValue(
  48                         'wgExtraNamespaces',
  49                         [
  50                                 12312 => 'Dummy',
  51                                 12313 => 'Dummy_talk',
  52                         ]
  53                 );
  54
  55                 $this->mergeMwGlobalArrayValue(
  56                         'wgNamespaceContentModels',
  57                         [
  58                                 12312 => DummyContentForTesting::MODEL_ID,
  59                         ]
  60                 );
  61
  62                 $this->mergeMwGlobalArrayValue(
  63                         'wgContentHandlers',
  64                         [
  65                                 DummyContentForTesting::MODEL_ID => 'DummyContentHandlerForTesting',
  66                                 RevisionTestModifyableContent::MODEL_ID => 'RevisionTestModifyableContentHandler',
  67                         ]
  68                 );
  69
  70                 MWNamespace::clearCaches();
  71                 // Reset namespace cache
  72                 $wgContLang->resetNamespaces();
  73                 if ( !$this->testPage ) {
  74                         $this->testPage = WikiPage::factory( Title::newFromText( 'UTPage' ) );
  75                 }
  76         }
  77
  78         protected function tearDown() {
  79                 global $wgContLang;
  80
  81                 parent::tearDown();
  82
  83                 MWNamespace::clearCaches();
  84                 // Reset namespace cache
  85                 $wgContLang->resetNamespaces();
  86         }
  87
  88         private function makeRevisionWithProps( $props = null ) {
  89                 if ( $props === null ) {
  90                         $props = [];
  91                 }
  92
  93                 if ( !isset( $props['content'] ) && !isset( $props['text'] ) ) {
  94                         $props['text'] = 'Lorem Ipsum';
  95                 }
  96
  97                 if ( !isset( $props['comment'] ) ) {
  98                         $props['comment'] = 'just a test';
  99                 }
 100
 101                 if ( !isset( $props['page'] ) ) {
 102                         $props['page'] = $this->testPage->getId();
 103                 }
 104
 105                 $rev = new Revision( $props );
 106
 107                 $dbw = wfGetDB( DB_MASTER );
 108                 $rev->insertOn( $dbw );
 109
 110                 return $rev;
 111         }
 112
 113         /**
 114          * @param string $titleString
 115          * @param string $text
 116          * @param string|null $model
 117          *
 118          * @return WikiPage
 119          */
 120         private function createPage( $titleString, $text, $model = null ) {
 121                 if ( !preg_match( '/:/', $titleString ) &&
 122                         ( $model === null || $model === CONTENT_MODEL_WIKITEXT )
 123                 ) {
 124                         $ns = $this->getDefaultWikitextNS();
 125                         $titleString = MWNamespace::getCanonicalName( $ns ) . ':' . $titleString;
 126                 }
 127
 128                 $title = Title::newFromText( $titleString );
 129                 $wikipage = new WikiPage( $title );
 130
 131                 // Delete the article if it already exists
 132                 if ( $wikipage->exists() ) {
 133                         $wikipage->doDeleteArticle( "done" );
 134                 }
 135
 136                 $content = ContentHandler::makeContent( $text, $title, $model );
 137                 $wikipage->doEditContent( $content, __METHOD__, EDIT_NEW );
 138
 139                 return $wikipage;
 140         }
 141
 142         private function assertRevEquals( Revision $orig, Revision $rev = null ) {
 143                 $this->assertNotNull( $rev, 'missing revision' );
 144
 145                 $this->assertEquals( $orig->getId(), $rev->getId() );
 146                 $this->assertEquals( $orig->getPage(), $rev->getPage() );
 147                 $this->assertEquals( $orig->getTimestamp(), $rev->getTimestamp() );
 148                 $this->assertEquals( $orig->getUser(), $rev->getUser() );
 149                 $this->assertEquals( $orig->getContentModel(), $rev->getContentModel() );
 150                 $this->assertEquals( $orig->getContentFormat(), $rev->getContentFormat() );
 151                 $this->assertEquals( $orig->getSha1(), $rev->getSha1() );
 152         }
 153
 154         /**
 155          * @covers Revision::__construct
 156          */
 157         public function testConstructFromRow() {
 158                 $latestRevisionId = $this->testPage->getLatest();
 159                 $latestRevision = $this->testPage->getRevision();
 160
 161                 $dbr = wfGetDB( DB_REPLICA );
 162                 $res = $dbr->select(
 163                         'revision',
 164                         Revision::selectFields(),
 165                         [ 'rev_id' => $latestRevisionId ]
 166                 );
 167                 $this->assertTrue( is_object( $res ), 'query failed' );
 168
 169                 $row = $res->fetchObject();
 170                 $res->free();
 171
 172                 $this->assertRevEquals( $latestRevision, new Revision( $row ) );
 173         }
 174
 175         /**
 176          * @covers Revision::newFromTitle
 177          */
 178         public function testNewFromTitle_withoutId() {
 179                 $latestRevId = $this->testPage->getLatest();
 180
 181                 $rev = Revision::newFromTitle( $this->testPage->getTitle() );
 182
 183                 $this->assertTrue( $this->testPage->getTitle()->equals( $rev->getTitle() ) );
 184                 $this->assertEquals( $latestRevId, $rev->getId() );
 185         }
 186
 187         /**
 188          * @covers Revision::newFromTitle
 189          */
 190         public function testNewFromTitle_withId() {
 191                 $latestRevId = $this->testPage->getLatest();
 192
 193                 $rev = Revision::newFromTitle( $this->testPage->getTitle(), $latestRevId );
 194
 195                 $this->assertTrue( $this->testPage->getTitle()->equals( $rev->getTitle() ) );
 196                 $this->assertEquals( $latestRevId, $rev->getId() );
 197         }
 198
 199         /**
 200          * @covers Revision::newFromTitle
 201          */
 202         public function testNewFromTitle_withBadId() {
 203                 $latestRevId = $this->testPage->getLatest();
 204
 205                 $rev = Revision::newFromTitle( $this->testPage->getTitle(), $latestRevId + 1 );
 206
 207                 $this->assertNull( $rev );
 208         }
 209
 210         /**
 211          * @covers Revision::newFromRow
 212          */
 213         public function testNewFromRow() {
 214                 $orig = $this->makeRevisionWithProps();
 215
 216                 $dbr = wfGetDB( DB_REPLICA );
 217                 $res = $dbr->select( 'revision', Revision::selectFields(), [ 'rev_id' => $orig->getId() ] );
 218                 $this->assertTrue( is_object( $res ), 'query failed' );
 219
 220                 $row = $res->fetchObject();
 221                 $res->free();
 222
 223                 $rev = Revision::newFromRow( $row );
 224
 225                 $this->assertRevEquals( $orig, $rev );
 226         }
 227
 228         public function provideNewFromArchiveRow() {
 229                 yield [
 230                         true,
 231                         function ( $f ) {
 232                                 return $f;
 233                         },
 234                 ];
 235                 yield [
 236                         false,
 237                         function ( $f ) {
 238                                 return $f;
 239                         },
 240                 ];
 241                 yield [
 242                         true,
 243                         function ( $f ) {
 244                                 return $f + [ 'ar_namespace', 'ar_title' ];
 245                         },
 246                 ];
 247                 yield [
 248                         false,
 249                         function ( $f ) {
 250                                 return $f + [ 'ar_namespace', 'ar_title' ];
 251                         },
 252                 ];
 253                 yield [
 254                         true,
 255                         function ( $f ) {
 256                                 unset( $f['ar_text_id'] );
 257                                 return $f;
 258                         },
 259                 ];
 260                 yield [
 261                         false,
 262                         function ( $f ) {
 263                                 unset( $f['ar_text_id'] );
 264                                 return $f;
 265                         },
 266                 ];
 267         }
 268
 269         /**
 270          * @dataProvider provideNewFromArchiveRow
 271          * @covers Revision::newFromArchiveRow
 272          */
 273         public function testNewFromArchiveRow( $contentHandlerUseDB, $selectModifier ) {
 274                 $this->setMwGlobals( 'wgContentHandlerUseDB', $contentHandlerUseDB );
 275
 276                 $page = $this->createPage(
 277                         'RevisionStorageTest_testNewFromArchiveRow',
 278                         'Lorem Ipsum',
 279                         CONTENT_MODEL_WIKITEXT
 280                 );
 281                 $orig = $page->getRevision();
 282                 $page->doDeleteArticle( 'test Revision::newFromArchiveRow' );
 283
 284                 $dbr = wfGetDB( DB_REPLICA );
 285                 $selectFields = $selectModifier( Revision::selectArchiveFields() );
 286                 $res = $dbr->select(
 287                         'archive', $selectFields, [ 'ar_rev_id' => $orig->getId() ]
 288                 );
 289                 $this->assertTrue( is_object( $res ), 'query failed' );
 290
 291                 $row = $res->fetchObject();
 292                 $res->free();
 293
 294                 $rev = Revision::newFromArchiveRow( $row );
 295
 296                 $this->assertRevEquals( $orig, $rev );
 297         }
 298
 299         /**
 300          * @covers Revision::newFromArchiveRow
 301          */
 302         public function testNewFromArchiveRowOverrides() {
 303                 $page = $this->createPage(
 304                         'RevisionStorageTest_testNewFromArchiveRow',
 305                         'Lorem Ipsum',
 306                         CONTENT_MODEL_WIKITEXT
 307                 );
 308                 $orig = $page->getRevision();
 309                 $page->doDeleteArticle( 'test Revision::newFromArchiveRow' );
 310
 311                 $dbr = wfGetDB( DB_REPLICA );
 312                 $res = $dbr->select(
 313                         'archive', Revision::selectArchiveFields(), [ 'ar_rev_id' => $orig->getId() ]
 314                 );
 315                 $this->assertTrue( is_object( $res ), 'query failed' );
 316
 317                 $row = $res->fetchObject();
 318                 $res->free();
 319
 320                 $rev = Revision::newFromArchiveRow( $row, [ 'comment' => 'SOMEOVERRIDE' ] );
 321
 322                 $this->assertNotEquals( $orig->getComment(), $rev->getComment() );
 323                 $this->assertEquals( 'SOMEOVERRIDE', $rev->getComment() );
 324         }
 325
 326         /**
 327          * @covers Revision::newFromId
 328          */
 329         public function testNewFromId() {
 330                 $orig = $this->testPage->getRevision();
 331                 $rev = Revision::newFromId( $orig->getId() );
 332                 $this->assertRevEquals( $orig, $rev );
 333         }
 334
 335         /**
 336          * @covers Revision::newFromPageId
 337          */
 338         public function testNewFromPageId() {
 339                 $rev = Revision::newFromPageId( $this->testPage->getId() );
 340                 $this->assertRevEquals(
 341                         $this->testPage->getRevision(),
 342                         $rev
 343                 );
 344         }
 345
 346         /**
 347          * @covers Revision::newFromPageId
 348          */
 349         public function testNewFromPageIdWithLatestId() {
 350                 $rev = Revision::newFromPageId(
 351                         $this->testPage->getId(),
 352                         $this->testPage->getLatest()
 353                 );
 354                 $this->assertRevEquals(
 355                         $this->testPage->getRevision(),
 356                         $rev
 357                 );
 358         }
 359
 360         /**
 361          * @covers Revision::newFromPageId
 362          */
 363         public function testNewFromPageIdWithNotLatestId() {
 364                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 365                 $rev = Revision::newFromPageId(
 366                         $this->testPage->getId(),
 367                         $this->testPage->getRevision()->getPrevious()->getId()
 368                 );
 369                 $this->assertRevEquals(
 370                         $this->testPage->getRevision()->getPrevious(),
 371                         $rev
 372                 );
 373         }
 374
 375         /**
 376          * @covers Revision::fetchRevision
 377          */
 378         public function testFetchRevision() {
 379                 // Hidden process cache assertion below
 380                 $this->testPage->getRevision()->getId();
 381
 382                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 383                 $id = $this->testPage->getRevision()->getId();
 384
 385                 $res = Revision::fetchRevision( $this->testPage->getTitle() );
 386
 387                 # note: order is unspecified
 388                 $rows = [];
 389                 while ( ( $row = $res->fetchObject() ) ) {
 390                         $rows[$row->rev_id] = $row;
 391                 }
 392
 393                 $this->assertEquals( 1, count( $rows ), 'expected exactly one revision' );
 394                 $this->assertArrayHasKey( $id, $rows, 'missing revision with id ' . $id );
 395         }
 396
 397         /**
 398          * @covers Revision::getPage
 399          */
 400         public function testGetPage() {
 401                 $page = $this->testPage;
 402
 403                 $orig = $this->makeRevisionWithProps( [ 'page' => $page->getId() ] );
 404                 $rev = Revision::newFromId( $orig->getId() );
 405
 406                 $this->assertEquals( $page->getId(), $rev->getPage() );
 407         }
 408
 409         /**
 410          * @covers Revision::isCurrent
 411          */
 412         public function testIsCurrent() {
 413                 $rev1 = $this->testPage->getRevision();
 414
 415                 # @todo find out if this should be true
 416                 # $this->assertTrue( $rev1->isCurrent() );
 417
 418                 $rev1x = Revision::newFromId( $rev1->getId() );
 419                 $this->assertTrue( $rev1x->isCurrent() );
 420
 421                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 422                 $rev2 = $this->testPage->getRevision();
 423
 424                 # @todo find out if this should be true
 425                 # $this->assertTrue( $rev2->isCurrent() );
 426
 427                 $rev1x = Revision::newFromId( $rev1->getId() );
 428                 $this->assertFalse( $rev1x->isCurrent() );
 429
 430                 $rev2x = Revision::newFromId( $rev2->getId() );
 431                 $this->assertTrue( $rev2x->isCurrent() );
 432         }
 433
 434         /**
 435          * @covers Revision::getPrevious
 436          */
 437         public function testGetPrevious() {
 438                 $oldestRevision = $this->testPage->getOldestRevision();
 439                 $latestRevision = $this->testPage->getLatest();
 440
 441                 $this->assertNull( $oldestRevision->getPrevious() );
 442
 443                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 444                 $newRevision = $this->testPage->getRevision();
 445
 446                 $this->assertNotNull( $newRevision->getPrevious() );
 447                 $this->assertEquals( $latestRevision, $newRevision->getPrevious()->getId() );
 448         }
 449
 450         /**
 451          * @covers Revision::getNext
 452          */
 453         public function testGetNext() {
 454                 $rev1 = $this->testPage->getRevision();
 455
 456                 $this->assertNull( $rev1->getNext() );
 457
 458                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 459                 $rev2 = $this->testPage->getRevision();
 460
 461                 $this->assertNotNull( $rev1->getNext() );
 462                 $this->assertEquals( $rev2->getId(), $rev1->getNext()->getId() );
 463         }
 464
 465         /**
 466          * @covers Revision::newNullRevision
 467          */
 468         public function testNewNullRevision() {
 469                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 470                 $orig = $this->testPage->getRevision();
 471
 472                 $dbw = wfGetDB( DB_MASTER );
 473                 $rev = Revision::newNullRevision( $dbw, $this->testPage->getId(), 'a null revision', false );
 474
 475                 $this->assertNotEquals( $orig->getId(), $rev->getId(),
 476                         'new null revision should have a different id from the original revision' );
 477                 $this->assertEquals( $orig->getTextId(), $rev->getTextId(),
 478                         'new null revision should have the same text id as the original revision' );
 479                 $this->assertEquals( __METHOD__, $rev->getContent()->getNativeData() );
 480         }
 481
 482         /**
 483          * @covers Revision::insertOn
 484          */
 485         public function testInsertOn() {
 486                 $ip = '2600:387:ed7:947e:8c16:a1ad:dd34:1dd7';
 487
 488                 $orig = $this->makeRevisionWithProps( [
 489                         'user_text' => $ip
 490                 ] );
 491
 492                 // Make sure the revision was copied to ip_changes
 493                 $dbr = wfGetDB( DB_REPLICA );
 494                 $res = $dbr->select( 'ip_changes', '*', [ 'ipc_rev_id' => $orig->getId() ] );
 495                 $row = $res->fetchObject();
 496
 497                 $this->assertEquals( IP::toHex( $ip ), $row->ipc_hex );
 498                 $this->assertEquals( $orig->getTimestamp(), $row->ipc_rev_timestamp );
 499         }
 500
 501         public static function provideUserWasLastToEdit() {
 502                 yield 'actually the last edit' => [ 3, true ];
 503                 yield 'not the current edit, but still by this user' => [ 2, true ];
 504                 yield 'edit by another user' => [ 1, false ];
 505                 yield 'first edit, by this user, but another user edited in the mean time' => [ 0, false ];
 506         }
 507
 508         /**
 509          * @dataProvider provideUserWasLastToEdit
 510          */
 511         public function testUserWasLastToEdit( $sinceIdx, $expectedLast ) {
 512                 $userA = User::newFromName( "RevisionStorageTest_userA" );
 513                 $userB = User::newFromName( "RevisionStorageTest_userB" );
 514
 515                 if ( $userA->getId() === 0 ) {
 516                         $userA = User::createNew( $userA->getName() );
 517                 }
 518
 519                 if ( $userB->getId() === 0 ) {
 520                         $userB = User::createNew( $userB->getName() );
 521                 }
 522
 523                 $ns = $this->getDefaultWikitextNS();
 524
 525                 $dbw = wfGetDB( DB_MASTER );
 526                 $revisions = [];
 527
 528                 // create revisions -----------------------------
 529                 $page = WikiPage::factory( Title::newFromText(
 530                         'RevisionStorageTest_testUserWasLastToEdit', $ns ) );
 531                 $page->insertOn( $dbw );
 532
 533                 $revisions[0] = new Revision( [
 534                         'page' => $page->getId(),
 535                         // we need the title to determine the page's default content model
 536                         'title' => $page->getTitle(),
 537                         'timestamp' => '20120101000000',
 538                         'user' => $userA->getId(),
 539                         'text' => 'zero',
 540                         'content_model' => CONTENT_MODEL_WIKITEXT,
 541                         'summary' => 'edit zero'
 542                 ] );
 543                 $revisions[0]->insertOn( $dbw );
 544
 545                 $revisions[1] = new Revision( [
 546                         'page' => $page->getId(),
 547                         // still need the title, because $page->getId() is 0 (there's no entry in the page table)
 548                         'title' => $page->getTitle(),
 549                         'timestamp' => '20120101000100',
 550                         'user' => $userA->getId(),
 551                         'text' => 'one',
 552                         'content_model' => CONTENT_MODEL_WIKITEXT,
 553                         'summary' => 'edit one'
 554                 ] );
 555                 $revisions[1]->insertOn( $dbw );
 556
 557                 $revisions[2] = new Revision( [
 558                         'page' => $page->getId(),
 559                         'title' => $page->getTitle(),
 560                         'timestamp' => '20120101000200',
 561                         'user' => $userB->getId(),
 562                         'text' => 'two',
 563                         'content_model' => CONTENT_MODEL_WIKITEXT,
 564                         'summary' => 'edit two'
 565                 ] );
 566                 $revisions[2]->insertOn( $dbw );
 567
 568                 $revisions[3] = new Revision( [
 569                         'page' => $page->getId(),
 570                         'title' => $page->getTitle(),
 571                         'timestamp' => '20120101000300',
 572                         'user' => $userA->getId(),
 573                         'text' => 'three',
 574                         'content_model' => CONTENT_MODEL_WIKITEXT,
 575                         'summary' => 'edit three'
 576                 ] );
 577                 $revisions[3]->insertOn( $dbw );
 578
 579                 $revisions[4] = new Revision( [
 580                         'page' => $page->getId(),
 581                         'title' => $page->getTitle(),
 582                         'timestamp' => '20120101000200',
 583                         'user' => $userA->getId(),
 584                         'text' => 'zero',
 585                         'content_model' => CONTENT_MODEL_WIKITEXT,
 586                         'summary' => 'edit four'
 587                 ] );
 588                 $revisions[4]->insertOn( $dbw );
 589
 590                 // test it ---------------------------------
 591                 $since = $revisions[$sinceIdx]->getTimestamp();
 592
 593                 $wasLast = Revision::userWasLastToEdit( $dbw, $page->getId(), $userA->getId(), $since );
 594
 595                 $this->assertEquals( $expectedLast, $wasLast );
 596         }
 597
 598         /**
 599          * @param string $text
 600          * @param string $title
 601          * @param string $model
 602          * @param string $format
 603          *
 604          * @return Revision
 605          */
 606         private function newTestRevision( $text, $title = "Test",
 607                 $model = CONTENT_MODEL_WIKITEXT, $format = null
 608         ) {
 609                 if ( is_string( $title ) ) {
 610                         $title = Title::newFromText( $title );
 611                 }
 612
 613                 $content = ContentHandler::makeContent( $text, $title, $model, $format );
 614
 615                 $rev = new Revision(
 616                         [
 617                                 'id' => 42,
 618                                 'page' => 23,
 619                                 'title' => $title,
 620
 621                                 'content' => $content,
 622                                 'length' => $content->getSize(),
 623                                 'comment' => "testing",
 624                                 'minor_edit' => false,
 625
 626                                 'content_format' => $format,
 627                         ]
 628                 );
 629
 630                 return $rev;
 631         }
 632
 633         public function provideGetContentModel() {
 634                 // NOTE: we expect the help namespace to always contain wikitext
 635                 return [
 636                         [ 'hello world', 'Help:Hello', null, null, CONTENT_MODEL_WIKITEXT ],
 637                         [ 'hello world', 'User:hello/there.css', null, null, CONTENT_MODEL_CSS ],
 638                         [ serialize( 'hello world' ), 'Dummy:Hello', null, null, DummyContentForTesting::MODEL_ID ],
 639                 ];
 640         }
 641
 642         /**
 643          * @dataProvider provideGetContentModel
 644          * @covers Revision::getContentModel
 645          */
 646         public function testGetContentModel( $text, $title, $model, $format, $expectedModel ) {
 647                 $rev = $this->newTestRevision( $text, $title, $model, $format );
 648
 649                 $this->assertEquals( $expectedModel, $rev->getContentModel() );
 650         }
 651
 652         public function provideGetContentFormat() {
 653                 // NOTE: we expect the help namespace to always contain wikitext
 654                 return [
 655                         [ 'hello world', 'Help:Hello', null, null, CONTENT_FORMAT_WIKITEXT ],
 656                         [ 'hello world', 'Help:Hello', CONTENT_MODEL_CSS, null, CONTENT_FORMAT_CSS ],
 657                         [ 'hello world', 'User:hello/there.css', null, null, CONTENT_FORMAT_CSS ],
 658                         [ serialize( 'hello world' ), 'Dummy:Hello', null, null, DummyContentForTesting::MODEL_ID ],
 659                 ];
 660         }
 661
 662         /**
 663          * @dataProvider provideGetContentFormat
 664          * @covers Revision::getContentFormat
 665          */
 666         public function testGetContentFormat( $text, $title, $model, $format, $expectedFormat ) {
 667                 $rev = $this->newTestRevision( $text, $title, $model, $format );
 668
 669                 $this->assertEquals( $expectedFormat, $rev->getContentFormat() );
 670         }
 671
 672         public function provideGetContentHandler() {
 673                 // NOTE: we expect the help namespace to always contain wikitext
 674                 return [
 675                         [ 'hello world', 'Help:Hello', null, null, 'WikitextContentHandler' ],
 676                         [ 'hello world', 'User:hello/there.css', null, null, 'CssContentHandler' ],
 677                         [ serialize( 'hello world' ), 'Dummy:Hello', null, null, 'DummyContentHandlerForTesting' ],
 678                 ];
 679         }
 680
 681         /**
 682          * @dataProvider provideGetContentHandler
 683          * @covers Revision::getContentHandler
 684          */
 685         public function testGetContentHandler( $text, $title, $model, $format, $expectedClass ) {
 686                 $rev = $this->newTestRevision( $text, $title, $model, $format );
 687
 688                 $this->assertEquals( $expectedClass, get_class( $rev->getContentHandler() ) );
 689         }
 690
 691         public function provideGetContent() {
 692                 // NOTE: we expect the help namespace to always contain wikitext
 693                 return [
 694                         [ 'hello world', 'Help:Hello', null, null, Revision::FOR_PUBLIC, 'hello world' ],
 695                         [
 696                                 serialize( 'hello world' ),
 697                                 'Hello',
 698                                 DummyContentForTesting::MODEL_ID,
 699                                 null,
 700                                 Revision::FOR_PUBLIC,
 701                                 serialize( 'hello world' )
 702                         ],
 703                         [
 704                                 serialize( 'hello world' ),
 705                                 'Dummy:Hello',
 706                                 null,
 707                                 null,
 708                                 Revision::FOR_PUBLIC,
 709                                 serialize( 'hello world' )
 710                         ],
 711                 ];
 712         }
 713
 714         /**
 715          * @dataProvider provideGetContent
 716          * @covers Revision::getContent
 717          */
 718         public function testGetContent( $text, $title, $model, $format,
 719                 $audience, $expectedSerialization
 720         ) {
 721                 $rev = $this->newTestRevision( $text, $title, $model, $format );
 722                 $content = $rev->getContent( $audience );
 723
 724                 $this->assertEquals(
 725                         $expectedSerialization,
 726                         is_null( $content ) ? null : $content->serialize( $format )
 727                 );
 728         }
 729
 730         /**
 731          * @covers Revision::getContent
 732          */
 733         public function testGetContent_failure() {
 734                 $rev = new Revision( [
 735                         'page' => $this->testPage->getId(),
 736                         'content_model' => $this->testPage->getContentModel(),
 737                         'text_id' => 123456789, // not in the test DB
 738                 ] );
 739
 740                 $this->assertNull( $rev->getContent(),
 741                         "getContent() should return null if the revision's text blob could not be loaded." );
 742
 743                 // NOTE: check this twice, once for lazy initialization, and once with the cached value.
 744                 $this->assertNull( $rev->getContent(),
 745                         "getContent() should return null if the revision's text blob could not be loaded." );
 746         }
 747
 748         public function provideGetSize() {
 749                 return [
 750                         [ "hello world.", CONTENT_MODEL_WIKITEXT, 12 ],
 751                         [ serialize( "hello world." ), DummyContentForTesting::MODEL_ID, 12 ],
 752                 ];
 753         }
 754
 755         /**
 756          * @covers Revision::getSize
 757          * @dataProvider provideGetSize
 758          */
 759         public function testGetSize( $text, $model, $expected_size ) {
 760                 $rev = $this->newTestRevision( $text, 'RevisionTest_testGetSize', $model );
 761                 $this->assertEquals( $expected_size, $rev->getSize() );
 762         }
 763
 764         public function provideGetSha1() {
 765                 return [
 766                         [ "hello world.", CONTENT_MODEL_WIKITEXT, Revision::base36Sha1( "hello world." ) ],
 767                         [
 768                                 serialize( "hello world." ),
 769                                 DummyContentForTesting::MODEL_ID,
 770                                 Revision::base36Sha1( serialize( "hello world." ) )
 771                         ],
 772                 ];
 773         }
 774
 775         /**
 776          * @covers Revision::getSha1
 777          * @dataProvider provideGetSha1
 778          */
 779         public function testGetSha1( $text, $model, $expected_hash ) {
 780                 $rev = $this->newTestRevision( $text, 'RevisionTest_testGetSha1', $model );
 781                 $this->assertEquals( $expected_hash, $rev->getSha1() );
 782         }
 783
 784         /**
 785          * Tests whether $rev->getContent() returns a clone when needed.
 786          *
 787          * @covers Revision::getContent
 788          */
 789         public function testGetContentClone() {
 790                 $content = new RevisionTestModifyableContent( "foo" );
 791
 792                 $rev = new Revision(
 793                         [
 794                                 'id' => 42,
 795                                 'page' => 23,
 796                                 'title' => Title::newFromText( "testGetContentClone_dummy" ),
 797
 798                                 'content' => $content,
 799                                 'length' => $content->getSize(),
 800                                 'comment' => "testing",
 801                                 'minor_edit' => false,
 802                         ]
 803                 );
 804
 805                 /** @var RevisionTestModifyableContent $content */
 806                 $content = $rev->getContent( Revision::RAW );
 807                 $content->setText( "bar" );
 808
 809                 /** @var RevisionTestModifyableContent $content2 */
 810                 $content2 = $rev->getContent( Revision::RAW );
 811                 // content is mutable, expect clone
 812                 $this->assertNotSame( $content, $content2, "expected a clone" );
 813                 // clone should contain the original text
 814                 $this->assertEquals( "foo", $content2->getText() );
 815
 816                 $content2->setText( "bla bla" );
 817                 // clones should be independent
 818                 $this->assertEquals( "bar", $content->getText() );
 819         }
 820
 821         /**
 822          * Tests whether $rev->getContent() returns the same object repeatedly if appropriate.
 823          * @covers Revision::getContent
 824          */
 825         public function testGetContentUncloned() {
 826                 $rev = $this->newTestRevision( "hello", "testGetContentUncloned_dummy", CONTENT_MODEL_WIKITEXT );
 827                 $content = $rev->getContent( Revision::RAW );
 828                 $content2 = $rev->getContent( Revision::RAW );
 829
 830                 // for immutable content like wikitext, this should be the same object
 831                 $this->assertSame( $content, $content2 );
 832         }
 833
 834         /**
 835          * @covers Revision::loadFromId
 836          */
 837         public function testLoadFromId() {
 838                 $rev = $this->testPage->getRevision();
 839                 $this->assertRevEquals(
 840                         $rev,
 841                         Revision::loadFromId( wfGetDB( DB_MASTER ), $rev->getId() )
 842                 );
 843         }
 844
 845         /**
 846          * @covers Revision::loadFromPageId
 847          */
 848         public function testLoadFromPageId() {
 849                 $this->assertRevEquals(
 850                         $this->testPage->getRevision(),
 851                         Revision::loadFromPageId( wfGetDB( DB_MASTER ), $this->testPage->getId() )
 852                 );
 853         }
 854
 855         /**
 856          * @covers Revision::loadFromPageId
 857          */
 858         public function testLoadFromPageIdWithLatestRevId() {
 859                 $this->assertRevEquals(
 860                         $this->testPage->getRevision(),
 861                         Revision::loadFromPageId(
 862                                 wfGetDB( DB_MASTER ),
 863                                 $this->testPage->getId(),
 864                                 $this->testPage->getLatest()
 865                         )
 866                 );
 867         }
 868
 869         /**
 870          * @covers Revision::loadFromPageId
 871          */
 872         public function testLoadFromPageIdWithNotLatestRevId() {
 873                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 874                 $this->assertRevEquals(
 875                         $this->testPage->getRevision()->getPrevious(),
 876                         Revision::loadFromPageId(
 877                                 wfGetDB( DB_MASTER ),
 878                                 $this->testPage->getId(),
 879                                 $this->testPage->getRevision()->getPrevious()->getId()
 880                         )
 881                 );
 882         }
 883
 884         /**
 885          * @covers Revision::loadFromTitle
 886          */
 887         public function testLoadFromTitle() {
 888                 $this->assertRevEquals(
 889                         $this->testPage->getRevision(),
 890                         Revision::loadFromTitle( wfGetDB( DB_MASTER ), $this->testPage->getTitle() )
 891                 );
 892         }
 893
 894         /**
 895          * @covers Revision::loadFromTitle
 896          */
 897         public function testLoadFromTitleWithLatestRevId() {
 898                 $this->assertRevEquals(
 899                         $this->testPage->getRevision(),
 900                         Revision::loadFromTitle(
 901                                 wfGetDB( DB_MASTER ),
 902                                 $this->testPage->getTitle(),
 903                                 $this->testPage->getLatest()
 904                         )
 905                 );
 906         }
 907
 908         /**
 909          * @covers Revision::loadFromTitle
 910          */
 911         public function testLoadFromTitleWithNotLatestRevId() {
 912                 $this->testPage->doEditContent( new WikitextContent( __METHOD__ ), __METHOD__ );
 913                 $this->assertRevEquals(
 914                         $this->testPage->getRevision()->getPrevious(),
 915                         Revision::loadFromTitle(
 916                                 wfGetDB( DB_MASTER ),
 917                                 $this->testPage->getTitle(),
 918                                 $this->testPage->getRevision()->getPrevious()->getId()
 919                         )
 920                 );
 921         }
 922
 923         /**
 924          * @covers Revision::loadFromTimestamp()
 925          */
 926         public function testLoadFromTimestamp() {
 927                 $this->assertRevEquals(
 928                         $this->testPage->getRevision(),
 929                         Revision::loadFromTimestamp(
 930                                 wfGetDB( DB_MASTER ),
 931                                 $this->testPage->getTitle(),
 932                                 $this->testPage->getRevision()->getTimestamp()
 933                         )
 934                 );
 935         }
 936
 937 }