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