tests/phpunit/includes/RevisionStorageTest.php

   1 <?php
   2
   3 /**
   4  * Test class for Revision storage.
   5  *
   6  * @group ContentHandler
   7  * @group Database
   8  * ^--- important, causes temporary tables to be used instead of the real database
   9  *
  10  * @group medium
  11  * ^--- important, causes tests not to fail with timeout
  12  */
  13 class RevisionStorageTest extends MediaWikiTestCase {
  14         /**
  15          * @var WikiPage $the_page
  16          */
  17         private $the_page;
  18
  19         function __construct( $name = null, array $data = [], $dataName = '' ) {
  20                 parent::__construct( $name, $data, $dataName );
  21
  22                 $this->tablesUsed = array_merge( $this->tablesUsed,
  23                         [ 'page',
  24                                 'revision',
  25                                 'text',
  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         protected function setUp() {
  41                 global $wgExtraNamespaces, $wgNamespaceContentModels, $wgContentHandlers, $wgContLang;
  42
  43                 parent::setUp();
  44
  45                 $wgExtraNamespaces[12312] = 'Dummy';
  46                 $wgExtraNamespaces[12313] = 'Dummy_talk';
  47
  48                 $wgNamespaceContentModels[12312] = 'DUMMY';
  49                 $wgContentHandlers['DUMMY'] = 'DummyContentHandlerForTesting';
  50
  51                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
  52                 $wgContLang->resetNamespaces(); # reset namespace cache
  53                 if ( !$this->the_page ) {
  54                         $this->the_page = $this->createPage(
  55                                 'RevisionStorageTest_the_page',
  56                                 "just a dummy page",
  57                                 CONTENT_MODEL_WIKITEXT
  58                         );
  59                 }
  60
  61                 $this->tablesUsed[] = 'archive';
  62         }
  63
  64         protected function tearDown() {
  65                 global $wgExtraNamespaces, $wgNamespaceContentModels, $wgContentHandlers, $wgContLang;
  66
  67                 parent::tearDown();
  68
  69                 unset( $wgExtraNamespaces[12312] );
  70                 unset( $wgExtraNamespaces[12313] );
  71
  72                 unset( $wgNamespaceContentModels[12312] );
  73                 unset( $wgContentHandlers['DUMMY'] );
  74
  75                 MWNamespace::getCanonicalNamespaces( true ); # reset namespace cache
  76                 $wgContLang->resetNamespaces(); # reset namespace cache
  77         }
  78
  79         protected function makeRevision( $props = null ) {
  80                 if ( $props === null ) {
  81                         $props = [];
  82                 }
  83
  84                 if ( !isset( $props['content'] ) && !isset( $props['text'] ) ) {
  85                         $props['text'] = 'Lorem Ipsum';
  86                 }
  87
  88                 if ( !isset( $props['comment'] ) ) {
  89                         $props['comment'] = 'just a test';
  90                 }
  91
  92                 if ( !isset( $props['page'] ) ) {
  93                         $props['page'] = $this->the_page->getId();
  94                 }
  95
  96                 $rev = new Revision( $props );
  97
  98                 $dbw = wfGetDB( DB_MASTER );
  99                 $rev->insertOn( $dbw );
 100
 101                 return $rev;
 102         }
 103
 104         protected function createPage( $page, $text, $model = null ) {
 105                 if ( is_string( $page ) ) {
 106                         if ( !preg_match( '/:/', $page ) &&
 107                                 ( $model === null || $model === CONTENT_MODEL_WIKITEXT )
 108                         ) {
 109                                 $ns = $this->getDefaultWikitextNS();
 110                                 $page = MWNamespace::getCanonicalName( $ns ) . ':' . $page;
 111                         }
 112
 113                         $page = Title::newFromText( $page );
 114                 }
 115
 116                 if ( $page instanceof Title ) {
 117                         $page = new WikiPage( $page );
 118                 }
 119
 120                 if ( $page->exists() ) {
 121                         $page->doDeleteArticle( "done" );
 122                 }
 123
 124                 $content = ContentHandler::makeContent( $text, $page->getTitle(), $model );
 125                 $page->doEditContent( $content, "testing", EDIT_NEW );
 126
 127                 return $page;
 128         }
 129
 130         protected function assertRevEquals( Revision $orig, Revision $rev = null ) {
 131                 $this->assertNotNull( $rev, 'missing revision' );
 132
 133                 $this->assertEquals( $orig->getId(), $rev->getId() );
 134                 $this->assertEquals( $orig->getPage(), $rev->getPage() );
 135                 $this->assertEquals( $orig->getTimestamp(), $rev->getTimestamp() );
 136                 $this->assertEquals( $orig->getUser(), $rev->getUser() );
 137                 $this->assertEquals( $orig->getContentModel(), $rev->getContentModel() );
 138                 $this->assertEquals( $orig->getContentFormat(), $rev->getContentFormat() );
 139                 $this->assertEquals( $orig->getSha1(), $rev->getSha1() );
 140         }
 141
 142         /**
 143          * @covers Revision::__construct
 144          */
 145         public function testConstructFromRow() {
 146                 $orig = $this->makeRevision();
 147
 148                 $dbr = wfGetDB( DB_SLAVE );
 149                 $res = $dbr->select( 'revision', '*', [ 'rev_id' => $orig->getId() ] );
 150                 $this->assertTrue( is_object( $res ), 'query failed' );
 151
 152                 $row = $res->fetchObject();
 153                 $res->free();
 154
 155                 $rev = new Revision( $row );
 156
 157                 $this->assertRevEquals( $orig, $rev );
 158         }
 159
 160         /**
 161          * @covers Revision::newFromRow
 162          */
 163         public function testNewFromRow() {
 164                 $orig = $this->makeRevision();
 165
 166                 $dbr = wfGetDB( DB_SLAVE );
 167                 $res = $dbr->select( 'revision', '*', [ 'rev_id' => $orig->getId() ] );
 168                 $this->assertTrue( is_object( $res ), 'query failed' );
 169
 170                 $row = $res->fetchObject();
 171                 $res->free();
 172
 173                 $rev = Revision::newFromRow( $row );
 174
 175                 $this->assertRevEquals( $orig, $rev );
 176         }
 177
 178         /**
 179          * @covers Revision::newFromArchiveRow
 180          */
 181         public function testNewFromArchiveRow() {
 182                 $page = $this->createPage(
 183                         'RevisionStorageTest_testNewFromArchiveRow',
 184                         'Lorem Ipsum',
 185                         CONTENT_MODEL_WIKITEXT
 186                 );
 187                 $orig = $page->getRevision();
 188                 $page->doDeleteArticle( 'test Revision::newFromArchiveRow' );
 189
 190                 $dbr = wfGetDB( DB_SLAVE );
 191                 $res = $dbr->select( 'archive', '*', [ 'ar_rev_id' => $orig->getId() ] );
 192                 $this->assertTrue( is_object( $res ), 'query failed' );
 193
 194                 $row = $res->fetchObject();
 195                 $res->free();
 196
 197                 $rev = Revision::newFromArchiveRow( $row );
 198
 199                 $this->assertRevEquals( $orig, $rev );
 200         }
 201
 202         /**
 203          * @covers Revision::newFromId
 204          */
 205         public function testNewFromId() {
 206                 $orig = $this->makeRevision();
 207
 208                 $rev = Revision::newFromId( $orig->getId() );
 209
 210                 $this->assertRevEquals( $orig, $rev );
 211         }
 212
 213         /**
 214          * @covers Revision::fetchRevision
 215          */
 216         public function testFetchRevision() {
 217                 $page = $this->createPage(
 218                         'RevisionStorageTest_testFetchRevision',
 219                         'one',
 220                         CONTENT_MODEL_WIKITEXT
 221                 );
 222
 223                 // Hidden process cache assertion below
 224                 $page->getRevision()->getId();
 225
 226                 $page->doEditContent( new WikitextContent( 'two' ), 'second rev' );
 227                 $id = $page->getRevision()->getId();
 228
 229                 $res = Revision::fetchRevision( $page->getTitle() );
 230
 231                 # note: order is unspecified
 232                 $rows = [];
 233                 while ( ( $row = $res->fetchObject() ) ) {
 234                         $rows[$row->rev_id] = $row;
 235                 }
 236
 237                 $this->assertEquals( 1, count( $rows ), 'expected exactly one revision' );
 238                 $this->assertArrayHasKey( $id, $rows, 'missing revision with id ' . $id );
 239         }
 240
 241         /**
 242          * @covers Revision::selectFields
 243          */
 244         public function testSelectFields() {
 245                 global $wgContentHandlerUseDB;
 246
 247                 $fields = Revision::selectFields();
 248
 249                 $this->assertTrue( in_array( 'rev_id', $fields ), 'missing rev_id in list of fields' );
 250                 $this->assertTrue( in_array( 'rev_page', $fields ), 'missing rev_page in list of fields' );
 251                 $this->assertTrue(
 252                         in_array( 'rev_timestamp', $fields ),
 253                         'missing rev_timestamp in list of fields'
 254                 );
 255                 $this->assertTrue( in_array( 'rev_user', $fields ), 'missing rev_user in list of fields' );
 256
 257                 if ( $wgContentHandlerUseDB ) {
 258                         $this->assertTrue( in_array( 'rev_content_model', $fields ),
 259                                 'missing rev_content_model in list of fields' );
 260                         $this->assertTrue( in_array( 'rev_content_format', $fields ),
 261                                 'missing rev_content_format in list of fields' );
 262                 }
 263         }
 264
 265         /**
 266          * @covers Revision::getPage
 267          */
 268         public function testGetPage() {
 269                 $page = $this->the_page;
 270
 271                 $orig = $this->makeRevision( [ 'page' => $page->getId() ] );
 272                 $rev = Revision::newFromId( $orig->getId() );
 273
 274                 $this->assertEquals( $page->getId(), $rev->getPage() );
 275         }
 276
 277         /**
 278          * @covers Revision::getText
 279          */
 280         public function testGetText() {
 281                 $this->hideDeprecated( 'Revision::getText' );
 282
 283                 $orig = $this->makeRevision( [ 'text' => 'hello hello.' ] );
 284                 $rev = Revision::newFromId( $orig->getId() );
 285
 286                 $this->assertEquals( 'hello hello.', $rev->getText() );
 287         }
 288
 289         /**
 290          * @covers Revision::getContent
 291          */
 292         public function testGetContent_failure() {
 293                 $rev = new Revision( [
 294                         'page' => $this->the_page->getId(),
 295                         'content_model' => $this->the_page->getContentModel(),
 296                         'text_id' => 123456789, // not in the test DB
 297                 ] );
 298
 299                 $this->assertNull( $rev->getContent(),
 300                         "getContent() should return null if the revision's text blob could not be loaded." );
 301
 302                 // NOTE: check this twice, once for lazy initialization, and once with the cached value.
 303                 $this->assertNull( $rev->getContent(),
 304                         "getContent() should return null if the revision's text blob could not be loaded." );
 305         }
 306
 307         /**
 308          * @covers Revision::getContent
 309          */
 310         public function testGetContent() {
 311                 $orig = $this->makeRevision( [ 'text' => 'hello hello.' ] );
 312                 $rev = Revision::newFromId( $orig->getId() );
 313
 314                 $this->assertEquals( 'hello hello.', $rev->getContent()->getNativeData() );
 315         }
 316
 317         /**
 318          * @covers Revision::getContentModel
 319          */
 320         public function testGetContentModel_default_model() {
 321                 global $wgContentHandlerUseDB;
 322
 323                 if ( !$wgContentHandlerUseDB ) {
 324                         $this->markTestSkipped( '$wgContentHandlerUseDB is disabled' );
 325                 }
 326
 327                 $orig = $this->makeRevision( [ 'text' => 'hello hello.', ] );
 328
 329                 // Change namespace default content model, to make sure getContentModel() uses the
 330                 // page content model, not the namespace default.
 331                 $ns = $this->getDefaultWikitextNS();
 332                 $this->mergeMwGlobalArrayValue( 'wgNamespaceContentModels', [ $ns => CONTENT_MODEL_JSON ] );
 333
 334                 $rev = Revision::newFromId( $orig->getId() );
 335
 336                 // we should still get the correct content model from the page table
 337                 $this->assertEquals( CONTENT_MODEL_WIKITEXT, $rev->getContentModel() );
 338
 339                 // check that we don't null the revision model if it's equal to the default, but not to
 340                 // the current page model.
 341                 $second = $this->makeRevision( [
 342                         'text' => '{ "say":"hello" }',
 343                         'content_model' => CONTENT_MODEL_JAVASCRIPT
 344                 ] );
 345
 346                 $rev = Revision::newFromId( $second->getId() );
 347
 348                 // we should now get the content model from the revision table
 349                 $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $rev->getContentModel() );
 350         }
 351
 352         /**
 353          * @covers Revision::getContentModel
 354          */
 355         public function testGetContentModel_other_model() {
 356                 global $wgContentHandlerUseDB;
 357
 358                 if ( !$wgContentHandlerUseDB ) {
 359                         $this->markTestSkipped( '$wgContentHandlerUseDB is disabled' );
 360                 }
 361
 362                 $orig = $this->makeRevision( [ 'text' => 'hello hello.',
 363                                                      'content_model' => CONTENT_MODEL_JAVASCRIPT ] );
 364                 $rev = Revision::newFromId( $orig->getId() );
 365
 366                 $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $rev->getContentModel() );
 367         }
 368
 369         /**
 370          * @covers Revision::getContentFormat
 371          */
 372         public function testGetContentFormat() {
 373                 global $wgContentHandlerUseDB;
 374
 375                 if ( !$wgContentHandlerUseDB ) {
 376                         $this->markTestSkipped( '$wgContentHandlerUseDB is disabled' );
 377                 }
 378
 379                 $orig = $this->makeRevision( [
 380                         'text' => 'hello hello.',
 381                         'content_model' => CONTENT_MODEL_JAVASCRIPT,
 382                         'content_format' => CONTENT_FORMAT_JAVASCRIPT
 383                 ] );
 384                 $rev = Revision::newFromId( $orig->getId() );
 385
 386                 $this->assertEquals( CONTENT_FORMAT_JAVASCRIPT, $rev->getContentFormat() );
 387         }
 388
 389         /**
 390          * @covers Revision::isCurrent
 391          */
 392         public function testIsCurrent() {
 393                 $page = $this->createPage(
 394                         'RevisionStorageTest_testIsCurrent',
 395                         'Lorem Ipsum',
 396                         CONTENT_MODEL_WIKITEXT
 397                 );
 398                 $rev1 = $page->getRevision();
 399
 400                 # @todo find out if this should be true
 401                 # $this->assertTrue( $rev1->isCurrent() );
 402
 403                 $rev1x = Revision::newFromId( $rev1->getId() );
 404                 $this->assertTrue( $rev1x->isCurrent() );
 405
 406                 $page->doEditContent(
 407                         ContentHandler::makeContent( 'Bla bla', $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
 408                         'second rev'
 409                 );
 410                 $rev2 = $page->getRevision();
 411
 412                 # @todo find out if this should be true
 413                 # $this->assertTrue( $rev2->isCurrent() );
 414
 415                 $rev1x = Revision::newFromId( $rev1->getId() );
 416                 $this->assertFalse( $rev1x->isCurrent() );
 417
 418                 $rev2x = Revision::newFromId( $rev2->getId() );
 419                 $this->assertTrue( $rev2x->isCurrent() );
 420         }
 421
 422         /**
 423          * @covers Revision::getPrevious
 424          */
 425         public function testGetPrevious() {
 426                 $page = $this->createPage(
 427                         'RevisionStorageTest_testGetPrevious',
 428                         'Lorem Ipsum testGetPrevious',
 429                         CONTENT_MODEL_WIKITEXT
 430                 );
 431                 $rev1 = $page->getRevision();
 432
 433                 $this->assertNull( $rev1->getPrevious() );
 434
 435                 $page->doEditContent(
 436                         ContentHandler::makeContent( 'Bla bla', $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
 437                         'second rev testGetPrevious' );
 438                 $rev2 = $page->getRevision();
 439
 440                 $this->assertNotNull( $rev2->getPrevious() );
 441                 $this->assertEquals( $rev1->getId(), $rev2->getPrevious()->getId() );
 442         }
 443
 444         /**
 445          * @covers Revision::getNext
 446          */
 447         public function testGetNext() {
 448                 $page = $this->createPage(
 449                         'RevisionStorageTest_testGetNext',
 450                         'Lorem Ipsum testGetNext',
 451                         CONTENT_MODEL_WIKITEXT
 452                 );
 453                 $rev1 = $page->getRevision();
 454
 455                 $this->assertNull( $rev1->getNext() );
 456
 457                 $page->doEditContent(
 458                         ContentHandler::makeContent( 'Bla bla', $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
 459                         'second rev testGetNext'
 460                 );
 461                 $rev2 = $page->getRevision();
 462
 463                 $this->assertNotNull( $rev1->getNext() );
 464                 $this->assertEquals( $rev2->getId(), $rev1->getNext()->getId() );
 465         }
 466
 467         /**
 468          * @covers Revision::newNullRevision
 469          */
 470         public function testNewNullRevision() {
 471                 $page = $this->createPage(
 472                         'RevisionStorageTest_testNewNullRevision',
 473                         'some testing text',
 474                         CONTENT_MODEL_WIKITEXT
 475                 );
 476                 $orig = $page->getRevision();
 477
 478                 $dbw = wfGetDB( DB_MASTER );
 479                 $rev = Revision::newNullRevision( $dbw, $page->getId(), 'a null revision', false );
 480
 481                 $this->assertNotEquals( $orig->getId(), $rev->getId(),
 482                         'new null revision shold have a different id from the original revision' );
 483                 $this->assertEquals( $orig->getTextId(), $rev->getTextId(),
 484                         'new null revision shold have the same text id as the original revision' );
 485                 $this->assertEquals( 'some testing text', $rev->getContent()->getNativeData() );
 486         }
 487
 488         public static function provideUserWasLastToEdit() {
 489                 return [
 490                         [ # 0
 491                                 3, true, # actually the last edit
 492                         ],
 493                         [ # 1
 494                                 2, true, # not the current edit, but still by this user
 495                         ],
 496                         [ # 2
 497                                 1, false, # edit by another user
 498                         ],
 499                         [ # 3
 500                                 0, false, # first edit, by this user, but another user edited in the mean time
 501                         ],
 502                 ];
 503         }
 504
 505         /**
 506          * @dataProvider provideUserWasLastToEdit
 507          */
 508         public function testUserWasLastToEdit( $sinceIdx, $expectedLast ) {
 509                 $userA = User::newFromName( "RevisionStorageTest_userA" );
 510                 $userB = User::newFromName( "RevisionStorageTest_userB" );
 511
 512                 if ( $userA->getId() === 0 ) {
 513                         $userA = User::createNew( $userA->getName() );
 514                 }
 515
 516                 if ( $userB->getId() === 0 ) {
 517                         $userB = User::createNew( $userB->getName() );
 518                 }
 519
 520                 $ns = $this->getDefaultWikitextNS();
 521
 522                 $dbw = wfGetDB( DB_MASTER );
 523                 $revisions = [];
 524
 525                 // create revisions -----------------------------
 526                 $page = WikiPage::factory( Title::newFromText(
 527                         'RevisionStorageTest_testUserWasLastToEdit', $ns ) );
 528                 $page->insertOn( $dbw );
 529
 530                 # zero
 531                 $revisions[0] = new Revision( [
 532                         'page' => $page->getId(),
 533                         // we need the title to determine the page's default content model
 534                         'title' => $page->getTitle(),
 535                         'timestamp' => '20120101000000',
 536                         'user' => $userA->getId(),
 537                         'text' => 'zero',
 538                         'content_model' => CONTENT_MODEL_WIKITEXT,
 539                         'summary' => 'edit zero'
 540                 ] );
 541                 $revisions[0]->insertOn( $dbw );
 542
 543                 # one
 544                 $revisions[1] = new Revision( [
 545                         'page' => $page->getId(),
 546                         // still need the title, because $page->getId() is 0 (there's no entry in the page table)
 547                         'title' => $page->getTitle(),
 548                         'timestamp' => '20120101000100',
 549                         'user' => $userA->getId(),
 550                         'text' => 'one',
 551                         'content_model' => CONTENT_MODEL_WIKITEXT,
 552                         'summary' => 'edit one'
 553                 ] );
 554                 $revisions[1]->insertOn( $dbw );
 555
 556                 # two
 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                 # three
 569                 $revisions[3] = new Revision( [
 570                         'page' => $page->getId(),
 571                         'title' => $page->getTitle(),
 572                         'timestamp' => '20120101000300',
 573                         'user' => $userA->getId(),
 574                         'text' => 'three',
 575                         'content_model' => CONTENT_MODEL_WIKITEXT,
 576                         'summary' => 'edit three'
 577                 ] );
 578                 $revisions[3]->insertOn( $dbw );
 579
 580                 # four
 581                 $revisions[4] = new Revision( [
 582                         'page' => $page->getId(),
 583                         'title' => $page->getTitle(),
 584                         'timestamp' => '20120101000200',
 585                         'user' => $userA->getId(),
 586                         'text' => 'zero',
 587                         'content_model' => CONTENT_MODEL_WIKITEXT,
 588                         'summary' => 'edit four'
 589                 ] );
 590                 $revisions[4]->insertOn( $dbw );
 591
 592                 // test it ---------------------------------
 593                 $since = $revisions[$sinceIdx]->getTimestamp();
 594
 595                 $wasLast = Revision::userWasLastToEdit( $dbw, $page->getId(), $userA->getId(), $since );
 596
 597                 $this->assertEquals( $expectedLast, $wasLast );
 598         }
 599 }