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