tests/phpunit/includes/page/WikiPageDbTestBase.php

   1 <?php
   2
   3 use MediaWiki\Edit\PreparedEdit;
   4 use MediaWiki\MediaWikiServices;
   5 use MediaWiki\Storage\RevisionSlotsUpdate;
   6 use MediaWiki\Storage\SlotRecord;
   7 use PHPUnit\Framework\MockObject\MockObject;
   8 use Wikimedia\TestingAccessWrapper;
   9
  10 /**
  11  * @covers WikiPage
  12  */
  13 abstract class WikiPageDbTestBase extends MediaWikiLangTestCase {
  14
  15         private $pagesToDelete;
  16
  17         public function __construct( $name = null, array $data = [], $dataName = '' ) {
  18                 parent::__construct( $name, $data, $dataName );
  19
  20                 $this->tablesUsed = array_merge(
  21                         $this->tablesUsed,
  22                         [ 'page',
  23                                 'revision',
  24                                 'redirect',
  25                                 'archive',
  26                                 'category',
  27                                 'ip_changes',
  28                                 'text',
  29
  30                                 'recentchanges',
  31                                 'logging',
  32
  33                                 'page_props',
  34                                 'pagelinks',
  35                                 'categorylinks',
  36                                 'langlinks',
  37                                 'externallinks',
  38                                 'imagelinks',
  39                                 'templatelinks',
  40                                 'iwlinks' ] );
  41         }
  42
  43         protected function addCoreDBData() {
  44                 // Blank out. This would fail with a modified schema, and we don't need it.
  45         }
  46
  47         /**
  48          * @return int
  49          */
  50         abstract protected function getMcrMigrationStage();
  51
  52         /**
  53          * @return string[]
  54          */
  55         abstract protected function getMcrTablesToReset();
  56
  57         protected function setUp() {
  58                 parent::setUp();
  59
  60                 $this->tablesUsed += $this->getMcrTablesToReset();
  61
  62                 $this->setMwGlobals( 'wgContentHandlerUseDB', $this->getContentHandlerUseDB() );
  63                 $this->setMwGlobals(
  64                         'wgMultiContentRevisionSchemaMigrationStage',
  65                         $this->getMcrMigrationStage()
  66                 );
  67                 $this->pagesToDelete = [];
  68
  69                 $this->overrideMwServices();
  70         }
  71
  72         protected function tearDown() {
  73                 foreach ( $this->pagesToDelete as $p ) {
  74                         /* @var $p WikiPage */
  75
  76                         try {
  77                                 if ( $p->exists() ) {
  78                                         $p->doDeleteArticle( "testing done." );
  79                                 }
  80                         } catch ( MWException $ex ) {
  81                                 // fail silently
  82                         }
  83                 }
  84                 parent::tearDown();
  85         }
  86
  87         abstract protected function getContentHandlerUseDB();
  88
  89         /**
  90          * @param Title|string $title
  91          * @param string|null $model
  92          * @return WikiPage
  93          */
  94         private function newPage( $title, $model = null ) {
  95                 if ( is_string( $title ) ) {
  96                         $ns = $this->getDefaultWikitextNS();
  97                         $title = Title::newFromText( $title, $ns );
  98                 }
  99
 100                 $p = new WikiPage( $title );
 101
 102                 $this->pagesToDelete[] = $p;
 103
 104                 return $p;
 105         }
 106
 107         /**
 108          * @param string|Title|WikiPage $page
 109          * @param string|Content|Content[] $content
 110          * @param int|null $model
 111          *
 112          * @return WikiPage
 113          */
 114         protected function createPage( $page, $content, $model = null, $user = null ) {
 115                 if ( is_string( $page ) || $page instanceof Title ) {
 116                         $page = $this->newPage( $page, $model );
 117                 }
 118
 119                 if ( !$user ) {
 120                         $user = $this->getTestUser()->getUser();
 121                 }
 122
 123                 if ( is_string( $content ) ) {
 124                         $content = ContentHandler::makeContent( $content, $page->getTitle(), $model );
 125                 }
 126
 127                 if ( !is_array( $content ) ) {
 128                         $content = [ 'main' => $content ];
 129                 }
 130
 131                 $updater = $page->newPageUpdater( $user );
 132
 133                 foreach ( $content as $role => $cnt ) {
 134                         $updater->setContent( $role, $cnt );
 135                 }
 136
 137                 $updater->saveRevision( CommentStoreComment::newUnsavedComment( "testing" ) );
 138
 139                 return $page;
 140         }
 141
 142         /**
 143          * @covers WikiPage::prepareContentForEdit
 144          */
 145         public function testPrepareContentForEdit() {
 146                 $user = $this->getTestUser()->getUser();
 147                 $sysop = $this->getTestUser( [ 'sysop' ] )->getUser();
 148
 149                 $page = $this->createPage( __METHOD__, __METHOD__, null, $user );
 150                 $title = $page->getTitle();
 151
 152                 $content = ContentHandler::makeContent(
 153                         "[[Lorem ipsum]] dolor sit amet, consetetur sadipscing elitr, sed diam "
 154                         . " nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.",
 155                         $title,
 156                         CONTENT_MODEL_WIKITEXT
 157                 );
 158                 $content2 = ContentHandler::makeContent(
 159                         "At vero eos et accusam et justo duo [[dolores]] et ea rebum. "
 160                         . "Stet clita kasd [[gubergren]], no sea takimata sanctus est. ~~~~",
 161                         $title,
 162                         CONTENT_MODEL_WIKITEXT
 163                 );
 164
 165                 $edit = $page->prepareContentForEdit( $content, null, $user, null, false );
 166
 167                 $this->assertInstanceOf(
 168                         ParserOptions::class,
 169                         $edit->popts,
 170                         "pops"
 171                 );
 172                 $this->assertContains( '</a>', $edit->output->getText(), "output" );
 173                 $this->assertContains(
 174                         'consetetur sadipscing elitr',
 175                         $edit->output->getText(),
 176                         "output"
 177                 );
 178
 179                 $this->assertTrue( $content->equals( $edit->newContent ), "newContent field" );
 180                 $this->assertTrue( $content->equals( $edit->pstContent ), "pstContent field" );
 181                 $this->assertSame( $edit->output, $edit->output, "output field" );
 182                 $this->assertSame( $edit->popts, $edit->popts, "popts field" );
 183                 $this->assertSame( null, $edit->revid, "revid field" );
 184
 185                 // Re-using the prepared info if possible
 186                 $sameEdit = $page->prepareContentForEdit( $content, null, $user, null, false );
 187                 $this->assertPreparedEditEquals( $edit, $sameEdit, 'equivalent PreparedEdit' );
 188                 $this->assertSame( $edit->pstContent, $sameEdit->pstContent, 're-use output' );
 189                 $this->assertSame( $edit->output, $sameEdit->output, 're-use output' );
 190
 191                 // Not re-using the same PreparedEdit if not possible
 192                 $rev = $page->getRevision();
 193                 $edit2 = $page->prepareContentForEdit( $content2, null, $user, null, false );
 194                 $this->assertPreparedEditNotEquals( $edit, $edit2 );
 195                 $this->assertContains( 'At vero eos', $edit2->pstContent->serialize(), "content" );
 196
 197                 // Check pre-safe transform
 198                 $this->assertContains( '[[gubergren]]', $edit2->pstContent->serialize() );
 199                 $this->assertNotContains( '~~~~', $edit2->pstContent->serialize() );
 200
 201                 $edit3 = $page->prepareContentForEdit( $content2, null, $sysop, null, false );
 202                 $this->assertPreparedEditNotEquals( $edit2, $edit3 );
 203
 204                 // TODO: test with passing revision, then same without revision.
 205         }
 206
 207         /**
 208          * @covers WikiPage::doEditUpdates
 209          */
 210         public function testDoEditUpdates() {
 211                 $user = $this->getTestUser()->getUser();
 212
 213                 // NOTE: if site stats get out of whack and drop below 0,
 214                 // that causes a DB error during tear-down. So bump the
 215                 // numbers high enough to not drop below 0.
 216                 $siteStatsUpdate = SiteStatsUpdate::factory(
 217                         [ 'edits' => 1000, 'articles' => 1000, 'pages' => 1000 ]
 218                 );
 219                 $siteStatsUpdate->doUpdate();
 220
 221                 $page = $this->createPage( __METHOD__, __METHOD__ );
 222
 223                 $revision = new Revision(
 224                         [
 225                                 'id' => 9989,
 226                                 'page' => $page->getId(),
 227                                 'title' => $page->getTitle(),
 228                                 'comment' => __METHOD__,
 229                                 'minor_edit' => true,
 230                                 'text' => __METHOD__ . ' [[|foo]][[bar]]', // PST turns [[|foo]] into [[foo]]
 231                                 'user' => $user->getId(),
 232                                 'user_text' => $user->getName(),
 233                                 'timestamp' => '20170707040404',
 234                                 'content_model' => CONTENT_MODEL_WIKITEXT,
 235                                 'content_format' => CONTENT_FORMAT_WIKITEXT,
 236                         ]
 237                 );
 238
 239                 $page->doEditUpdates( $revision, $user );
 240
 241                 // TODO: test various options; needs temporary hooks
 242
 243                 $dbr = wfGetDB( DB_REPLICA );
 244                 $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $page->getId() ] );
 245                 $n = $res->numRows();
 246                 $res->free();
 247
 248                 $this->assertEquals( 1, $n, 'pagelinks should contain only one link if PST was not applied' );
 249         }
 250
 251         /**
 252          * @covers WikiPage::doEditContent
 253          * @covers WikiPage::prepareContentForEdit
 254          */
 255         public function testDoEditContent() {
 256                 $this->setMwGlobals( 'wgPageCreationLog', true );
 257
 258                 $page = $this->newPage( __METHOD__ );
 259                 $title = $page->getTitle();
 260
 261                 $user1 = $this->getTestUser()->getUser();
 262                 // Use the confirmed group for user2 to make sure the user is different
 263                 $user2 = $this->getTestUser( [ 'confirmed' ] )->getUser();
 264
 265                 $content = ContentHandler::makeContent(
 266                         "[[Lorem ipsum]] dolor sit amet, consetetur sadipscing elitr, sed diam "
 267                                 . " nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.",
 268                         $title,
 269                         CONTENT_MODEL_WIKITEXT
 270                 );
 271
 272                 $preparedEditBefore = $page->prepareContentForEdit( $content, null, $user1 );
 273
 274                 $status = $page->doEditContent( $content, "[[testing]] 1", EDIT_NEW, false, $user1 );
 275
 276                 $this->assertTrue( $status->isOK(), 'OK' );
 277                 $this->assertTrue( $status->value['new'], 'new' );
 278                 $this->assertNotNull( $status->value['revision'], 'revision' );
 279                 $this->assertSame( $status->value['revision']->getId(), $page->getRevision()->getId() );
 280                 $this->assertSame( $status->value['revision']->getSha1(), $page->getRevision()->getSha1() );
 281                 $this->assertTrue( $status->value['revision']->getContent()->equals( $content ), 'equals' );
 282
 283                 $rev = $page->getRevision();
 284                 $preparedEditAfter = $page->prepareContentForEdit( $content, $rev, $user1 );
 285
 286                 $this->assertNotNull( $rev->getRecentChange() );
 287                 $this->assertSame( $rev->getId(), (int)$rev->getRecentChange()->getAttribute( 'rc_this_oldid' ) );
 288
 289                 // make sure that cached ParserOutput gets re-used throughout
 290                 $this->assertSame( $preparedEditBefore->output, $preparedEditAfter->output );
 291
 292                 $id = $page->getId();
 293
 294                 // Test page creation logging
 295                 $this->assertSelect(
 296                         'logging',
 297                         [ 'log_type', 'log_action' ],
 298                         [ 'log_page' => $id ],
 299                         [ [ 'create', 'create' ] ]
 300                 );
 301
 302                 $this->assertTrue( $title->getArticleID() > 0, "Title object should have new page id" );
 303                 $this->assertTrue( $id > 0, "WikiPage should have new page id" );
 304                 $this->assertTrue( $title->exists(), "Title object should indicate that the page now exists" );
 305                 $this->assertTrue( $page->exists(), "WikiPage object should indicate that the page now exists" );
 306
 307                 # ------------------------
 308                 $dbr = wfGetDB( DB_REPLICA );
 309                 $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
 310                 $n = $res->numRows();
 311                 $res->free();
 312
 313                 $this->assertEquals( 1, $n, 'pagelinks should contain one link from the page' );
 314
 315                 # ------------------------
 316                 $page = new WikiPage( $title );
 317
 318                 $retrieved = $page->getContent();
 319                 $this->assertTrue( $content->equals( $retrieved ), 'retrieved content doesn\'t equal original' );
 320
 321                 # ------------------------
 322                 $page = new WikiPage( $title );
 323
 324                 // try null edit, with a different user
 325                 $status = $page->doEditContent( $content, 'This changes nothing', EDIT_UPDATE, false, $user2 );
 326                 $this->assertTrue( $status->isOK(), 'OK' );
 327                 $this->assertFalse( $status->value['new'], 'new' );
 328                 $this->assertNull( $status->value['revision'], 'revision' );
 329                 $this->assertNotNull( $page->getRevision() );
 330                 $this->assertTrue( $page->getRevision()->getContent()->equals( $content ), 'equals' );
 331
 332                 # ------------------------
 333                 $content = ContentHandler::makeContent(
 334                         "At vero eos et accusam et justo duo [[dolores]] et ea rebum. "
 335                                 . "Stet clita kasd [[gubergren]], no sea takimata sanctus est. ~~~~",
 336                         $title,
 337                         CONTENT_MODEL_WIKITEXT
 338                 );
 339
 340                 $status = $page->doEditContent( $content, "testing 2", EDIT_UPDATE );
 341                 $this->assertTrue( $status->isOK(), 'OK' );
 342                 $this->assertFalse( $status->value['new'], 'new' );
 343                 $this->assertNotNull( $status->value['revision'], 'revision' );
 344                 $this->assertSame( $status->value['revision']->getId(), $page->getRevision()->getId() );
 345                 $this->assertSame( $status->value['revision']->getSha1(), $page->getRevision()->getSha1() );
 346                 $this->assertFalse(
 347                         $status->value['revision']->getContent()->equals( $content ),
 348                         'not equals (PST must substitute signature)'
 349                 );
 350
 351                 $rev = $page->getRevision();
 352                 $this->assertNotNull( $rev->getRecentChange() );
 353                 $this->assertSame( $rev->getId(), (int)$rev->getRecentChange()->getAttribute( 'rc_this_oldid' ) );
 354
 355                 # ------------------------
 356                 $page = new WikiPage( $title );
 357
 358                 $retrieved = $page->getContent();
 359                 $newText = $retrieved->serialize();
 360                 $this->assertContains( '[[gubergren]]', $newText, 'New text must replace old text.' );
 361                 $this->assertNotContains( '~~~~', $newText, 'PST must substitute signature.' );
 362
 363                 # ------------------------
 364                 $dbr = wfGetDB( DB_REPLICA );
 365                 $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
 366                 $n = $res->numRows();
 367                 $res->free();
 368
 369                 $this->assertEquals( 2, $n, 'pagelinks should contain two links from the page' );
 370         }
 371
 372         /**
 373          * @covers WikiPage::doEditContent
 374          */
 375         public function testDoEditContent_twice() {
 376                 $title = Title::newFromText( __METHOD__ );
 377                 $page = WikiPage::factory( $title );
 378                 $content = ContentHandler::makeContent( '$1 van $2', $title );
 379
 380                 // Make sure we can do the exact same save twice.
 381                 // This tests checks that internal caches are reset as appropriate.
 382                 $status1 = $page->doEditContent( $content, __METHOD__ );
 383                 $status2 = $page->doEditContent( $content, __METHOD__ );
 384
 385                 $this->assertTrue( $status1->isOK(), 'OK' );
 386                 $this->assertTrue( $status2->isOK(), 'OK' );
 387
 388                 $this->assertTrue( isset( $status1->value['revision'] ), 'OK' );
 389                 $this->assertFalse( isset( $status2->value['revision'] ), 'OK' );
 390         }
 391
 392         /**
 393          * Undeletion is covered in PageArchiveTest::testUndeleteRevisions()
 394          * TODO: Revision deletion
 395          *
 396          * @covers WikiPage::doDeleteArticle
 397          * @covers WikiPage::doDeleteArticleReal
 398          */
 399         public function testDoDeleteArticle() {
 400                 $page = $this->createPage(
 401                         __METHOD__,
 402                         "[[original text]] foo",
 403                         CONTENT_MODEL_WIKITEXT
 404                 );
 405                 $id = $page->getId();
 406
 407                 $page->doDeleteArticle( "testing deletion" );
 408
 409                 $this->assertFalse(
 410                         $page->getTitle()->getArticleID() > 0,
 411                         "Title object should now have page id 0"
 412                 );
 413                 $this->assertFalse( $page->getId() > 0, "WikiPage should now have page id 0" );
 414                 $this->assertFalse(
 415                         $page->exists(),
 416                         "WikiPage::exists should return false after page was deleted"
 417                 );
 418                 $this->assertNull(
 419                         $page->getContent(),
 420                         "WikiPage::getContent should return null after page was deleted"
 421                 );
 422
 423                 $t = Title::newFromText( $page->getTitle()->getPrefixedText() );
 424                 $this->assertFalse(
 425                         $t->exists(),
 426                         "Title::exists should return false after page was deleted"
 427                 );
 428
 429                 // Run the job queue
 430                 JobQueueGroup::destroySingletons();
 431                 $jobs = new RunJobs;
 432                 $jobs->loadParamsAndArgs( null, [ 'quiet' => true ], null );
 433                 $jobs->execute();
 434
 435                 # ------------------------
 436                 $dbr = wfGetDB( DB_REPLICA );
 437                 $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
 438                 $n = $res->numRows();
 439                 $res->free();
 440
 441                 $this->assertEquals( 0, $n, 'pagelinks should contain no more links from the page' );
 442         }
 443
 444         /**
 445          * @covers WikiPage::doDeleteArticleReal
 446          */
 447         public function testDoDeleteArticleReal_user0() {
 448                 $page = $this->createPage(
 449                         __METHOD__,
 450                         "[[original text]] foo",
 451                         CONTENT_MODEL_WIKITEXT
 452                 );
 453                 $id = $page->getId();
 454
 455                 $errorStack = '';
 456                 $status = $page->doDeleteArticleReal(
 457                         /* reason */ "testing user 0 deletion",
 458                         /* suppress */ false,
 459                         /* unused 1 */ null,
 460                         /* unused 2 */ null,
 461                         /* errorStack */ $errorStack,
 462                         null
 463                 );
 464                 $logId = $status->getValue();
 465                 $actorQuery = ActorMigration::newMigration()->getJoin( 'log_user' );
 466                 $this->assertSelect(
 467                         [ 'logging' ] + $actorQuery['tables'], /* table */
 468                         [
 469                                 'log_type',
 470                                 'log_action',
 471                                 'log_comment',
 472                                 'log_user' => $actorQuery['fields']['log_user'],
 473                                 'log_user_text' => $actorQuery['fields']['log_user_text'],
 474                                 'log_namespace',
 475                                 'log_title',
 476                         ],
 477                         [ 'log_id' => $logId ],
 478                         [ [
 479                                 'delete',
 480                                 'delete',
 481                                 'testing user 0 deletion',
 482                                 '0',
 483                                 '127.0.0.1',
 484                                 (string)$page->getTitle()->getNamespace(),
 485                                 $page->getTitle()->getDBkey(),
 486                         ] ],
 487                         [],
 488                         $actorQuery['joins']
 489                 );
 490         }
 491
 492         /**
 493          * @covers WikiPage::doDeleteArticleReal
 494          */
 495         public function testDoDeleteArticleReal_userSysop() {
 496                 $page = $this->createPage(
 497                         __METHOD__,
 498                         "[[original text]] foo",
 499                         CONTENT_MODEL_WIKITEXT
 500                 );
 501                 $id = $page->getId();
 502
 503                 $user = $this->getTestSysop()->getUser();
 504                 $errorStack = '';
 505                 $status = $page->doDeleteArticleReal(
 506                         /* reason */ "testing sysop deletion",
 507                         /* suppress */ false,
 508                         /* unused 1 */ null,
 509                         /* unused 2 */ null,
 510                         /* errorStack */ $errorStack,
 511                         $user
 512                 );
 513                 $logId = $status->getValue();
 514                 $actorQuery = ActorMigration::newMigration()->getJoin( 'log_user' );
 515                 $this->assertSelect(
 516                         [ 'logging' ] + $actorQuery['tables'], /* table */
 517                         [
 518                                 'log_type',
 519                                 'log_action',
 520                                 'log_comment',
 521                                 'log_user' => $actorQuery['fields']['log_user'],
 522                                 'log_user_text' => $actorQuery['fields']['log_user_text'],
 523                                 'log_namespace',
 524                                 'log_title',
 525                         ],
 526                         [ 'log_id' => $logId ],
 527                         [ [
 528                                 'delete',
 529                                 'delete',
 530                                 'testing sysop deletion',
 531                                 (string)$user->getId(),
 532                                 $user->getName(),
 533                                 (string)$page->getTitle()->getNamespace(),
 534                                 $page->getTitle()->getDBkey(),
 535                         ] ],
 536                         [],
 537                         $actorQuery['joins']
 538                 );
 539         }
 540
 541         /**
 542          * TODO: Test more stuff about suppression.
 543          *
 544          * @covers WikiPage::doDeleteArticleReal
 545          */
 546         public function testDoDeleteArticleReal_suppress() {
 547                 $page = $this->createPage(
 548                         __METHOD__,
 549                         "[[original text]] foo",
 550                         CONTENT_MODEL_WIKITEXT
 551                 );
 552                 $id = $page->getId();
 553
 554                 $user = $this->getTestSysop()->getUser();
 555                 $errorStack = '';
 556                 $status = $page->doDeleteArticleReal(
 557                         /* reason */ "testing deletion",
 558                         /* suppress */ true,
 559                         /* unused 1 */ null,
 560                         /* unused 2 */ null,
 561                         /* errorStack */ $errorStack,
 562                         $user
 563                 );
 564                 $logId = $status->getValue();
 565                 $actorQuery = ActorMigration::newMigration()->getJoin( 'log_user' );
 566                 $this->assertSelect(
 567                         [ 'logging' ] + $actorQuery['tables'], /* table */
 568                         [
 569                                 'log_type',
 570                                 'log_action',
 571                                 'log_comment',
 572                                 'log_user' => $actorQuery['fields']['log_user'],
 573                                 'log_user_text' => $actorQuery['fields']['log_user_text'],
 574                                 'log_namespace',
 575                                 'log_title',
 576                         ],
 577                         [ 'log_id' => $logId ],
 578                         [ [
 579                                 'suppress',
 580                                 'delete',
 581                                 'testing deletion',
 582                                 (string)$user->getId(),
 583                                 $user->getName(),
 584                                 (string)$page->getTitle()->getNamespace(),
 585                                 $page->getTitle()->getDBkey(),
 586                         ] ],
 587                         [],
 588                         $actorQuery['joins']
 589                 );
 590
 591                 $this->assertNull(
 592                         $page->getContent( Revision::FOR_PUBLIC ),
 593                         "WikiPage::getContent should return null after the page was suppressed for general users"
 594                 );
 595
 596                 $this->assertNull(
 597                         $page->getContent( Revision::FOR_THIS_USER, null ),
 598                         "WikiPage::getContent should return null after the page was suppressed for user zero"
 599                 );
 600
 601                 $this->assertNull(
 602                         $page->getContent( Revision::FOR_THIS_USER, $user ),
 603                         "WikiPage::getContent should return null after the page was suppressed even for a sysop"
 604                 );
 605         }
 606
 607         /**
 608          * @covers WikiPage::doDeleteUpdates
 609          */
 610         public function testDoDeleteUpdates() {
 611                 $user = $this->getTestUser()->getUser();
 612                 $page = $this->createPage(
 613                         __METHOD__,
 614                         "[[original text]] foo",
 615                         CONTENT_MODEL_WIKITEXT
 616                 );
 617                 $id = $page->getId();
 618                 $page->loadPageData(); // make sure the current revision is cached.
 619
 620                 // Similar to MovePage logic
 621                 wfGetDB( DB_MASTER )->delete( 'page', [ 'page_id' => $id ], __METHOD__ );
 622                 $page->doDeleteUpdates( $page->getId(), $page->getContent(), $page->getRevision(), $user );
 623
 624                 // Run the job queue
 625                 JobQueueGroup::destroySingletons();
 626                 $jobs = new RunJobs;
 627                 $jobs->loadParamsAndArgs( null, [ 'quiet' => true ], null );
 628                 $jobs->execute();
 629
 630                 # ------------------------
 631                 $dbr = wfGetDB( DB_REPLICA );
 632                 $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
 633                 $n = $res->numRows();
 634                 $res->free();
 635
 636                 $this->assertEquals( 0, $n, 'pagelinks should contain no more links from the page' );
 637         }
 638
 639         /**
 640          * @param string $name
 641          *
 642          * @return ContentHandler
 643          */
 644         protected function defineMockContentModelForUpdateTesting( $name ) {
 645                 /** @var ContentHandler|MockObject $handler */
 646                 $handler = $this->getMockBuilder( TextContentHandler::class )
 647                         ->setConstructorArgs( [ $name ] )
 648                         ->setMethods(
 649                                 [ 'getSecondaryDataUpdates', 'getDeletionUpdates', 'unserializeContent' ]
 650                         )
 651                         ->getMock();
 652
 653                 $dataUpdate = new MWCallableUpdate( 'time' );
 654                 $dataUpdate->_name = "$name data update";
 655
 656                 $deletionUpdate = new MWCallableUpdate( 'time' );
 657                 $deletionUpdate->_name = "$name deletion update";
 658
 659                 $handler->method( 'getSecondaryDataUpdates' )->willReturn( [ $dataUpdate ] );
 660                 $handler->method( 'getDeletionUpdates' )->willReturn( [ $deletionUpdate ] );
 661                 $handler->method( 'unserializeContent' )->willReturnCallback(
 662                         function ( $text ) use ( $handler ) {
 663                                 return $this->createMockContent( $handler, $text );
 664                         }
 665                 );
 666
 667                 $this->mergeMwGlobalArrayValue(
 668                         'wgContentHandlers', [
 669                                 $name => function () use ( $handler ){
 670                                         return $handler;
 671                                 }
 672                         ]
 673                 );
 674
 675                 return $handler;
 676         }
 677
 678         /**
 679          * @param ContentHandler $handler
 680          * @param string $text
 681          *
 682          * @return Content
 683          */
 684         protected function createMockContent( ContentHandler $handler, $text ) {
 685                 /** @var Content|MockObject $content */
 686                 $content = $this->getMockBuilder( TextContent::class )
 687                         ->setConstructorArgs( [ $text ] )
 688                         ->setMethods( [ 'getModel', 'getContentHandler' ] )
 689                         ->getMock();
 690
 691                 $content->method( 'getModel' )->willReturn( $handler->getModelID() );
 692                 $content->method( 'getContentHandler' )->willReturn( $handler );
 693
 694                 return $content;
 695         }
 696
 697         public function testGetDeletionUpdates() {
 698                 $m1 = $this->defineMockContentModelForUpdateTesting( 'M1' );
 699
 700                 $mainContent1 = $this->createMockContent( $m1, 'main 1' );
 701
 702                 $page = new WikiPage( Title::newFromText( __METHOD__ ) );
 703                 $page = $this->createPage(
 704                         $page,
 705                         [ 'main' => $mainContent1 ]
 706                 );
 707
 708                 $dataUpdates = $page->getDeletionUpdates( $page->getRevisionRecord() );
 709                 $this->assertNotEmpty( $dataUpdates );
 710
 711                 $updateNames = array_map( function ( $du ) {
 712                         return isset( $du->_name ) ? $du->_name : get_class( $du );
 713                 }, $dataUpdates );
 714
 715                 $this->assertContains( LinksDeletionUpdate::class, $updateNames );
 716                 $this->assertContains( 'M1 deletion update', $updateNames );
 717         }
 718
 719         /**
 720          * @covers WikiPage::getRevision
 721          */
 722         public function testGetRevision() {
 723                 $page = $this->newPage( __METHOD__ );
 724
 725                 $rev = $page->getRevision();
 726                 $this->assertNull( $rev );
 727
 728                 # -----------------
 729                 $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 730
 731                 $rev = $page->getRevision();
 732
 733                 $this->assertEquals( $page->getLatest(), $rev->getId() );
 734                 $this->assertEquals( "some text", $rev->getContent()->getNativeData() );
 735         }
 736
 737         /**
 738          * @covers WikiPage::getContent
 739          */
 740         public function testGetContent() {
 741                 $page = $this->newPage( __METHOD__ );
 742
 743                 $content = $page->getContent();
 744                 $this->assertNull( $content );
 745
 746                 # -----------------
 747                 $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 748
 749                 $content = $page->getContent();
 750                 $this->assertEquals( "some text", $content->getNativeData() );
 751         }
 752
 753         /**
 754          * @covers WikiPage::exists
 755          */
 756         public function testExists() {
 757                 $page = $this->newPage( __METHOD__ );
 758                 $this->assertFalse( $page->exists() );
 759
 760                 # -----------------
 761                 $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 762                 $this->assertTrue( $page->exists() );
 763
 764                 $page = new WikiPage( $page->getTitle() );
 765                 $this->assertTrue( $page->exists() );
 766
 767                 # -----------------
 768                 $page->doDeleteArticle( "done testing" );
 769                 $this->assertFalse( $page->exists() );
 770
 771                 $page = new WikiPage( $page->getTitle() );
 772                 $this->assertFalse( $page->exists() );
 773         }
 774
 775         public function provideHasViewableContent() {
 776                 return [
 777                         [ 'WikiPageTest_testHasViewableContent', false, true ],
 778                         [ 'Special:WikiPageTest_testHasViewableContent', false ],
 779                         [ 'MediaWiki:WikiPageTest_testHasViewableContent', false ],
 780                         [ 'Special:Userlogin', true ],
 781                         [ 'MediaWiki:help', true ],
 782                 ];
 783         }
 784
 785         /**
 786          * @dataProvider provideHasViewableContent
 787          * @covers WikiPage::hasViewableContent
 788          */
 789         public function testHasViewableContent( $title, $viewable, $create = false ) {
 790                 $page = $this->newPage( $title );
 791                 $this->assertEquals( $viewable, $page->hasViewableContent() );
 792
 793                 if ( $create ) {
 794                         $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 795                         $this->assertTrue( $page->hasViewableContent() );
 796
 797                         $page = new WikiPage( $page->getTitle() );
 798                         $this->assertTrue( $page->hasViewableContent() );
 799                 }
 800         }
 801
 802         public function provideGetRedirectTarget() {
 803                 return [
 804                         [ 'WikiPageTest_testGetRedirectTarget_1', CONTENT_MODEL_WIKITEXT, "hello world", null ],
 805                         [
 806                                 'WikiPageTest_testGetRedirectTarget_2',
 807                                 CONTENT_MODEL_WIKITEXT,
 808                                 "#REDIRECT [[hello world]]",
 809                                 "Hello world"
 810                         ],
 811                 ];
 812         }
 813
 814         /**
 815          * @dataProvider provideGetRedirectTarget
 816          * @covers WikiPage::getRedirectTarget
 817          */
 818         public function testGetRedirectTarget( $title, $model, $text, $target ) {
 819                 $this->setMwGlobals( [
 820                         'wgCapitalLinks' => true,
 821                 ] );
 822
 823                 $page = $this->createPage( $title, $text, $model );
 824
 825                 # sanity check, because this test seems to fail for no reason for some people.
 826                 $c = $page->getContent();
 827                 $this->assertEquals( WikitextContent::class, get_class( $c ) );
 828
 829                 # now, test the actual redirect
 830                 $t = $page->getRedirectTarget();
 831                 $this->assertEquals( $target, is_null( $t ) ? null : $t->getPrefixedText() );
 832         }
 833
 834         /**
 835          * @dataProvider provideGetRedirectTarget
 836          * @covers WikiPage::isRedirect
 837          */
 838         public function testIsRedirect( $title, $model, $text, $target ) {
 839                 $page = $this->createPage( $title, $text, $model );
 840                 $this->assertEquals( !is_null( $target ), $page->isRedirect() );
 841         }
 842
 843         public function provideIsCountable() {
 844                 return [
 845
 846                         // any
 847                         [ 'WikiPageTest_testIsCountable',
 848                                 CONTENT_MODEL_WIKITEXT,
 849                                 '',
 850                                 'any',
 851                                 true
 852                         ],
 853                         [ 'WikiPageTest_testIsCountable',
 854                                 CONTENT_MODEL_WIKITEXT,
 855                                 'Foo',
 856                                 'any',
 857                                 true
 858                         ],
 859
 860                         // link
 861                         [ 'WikiPageTest_testIsCountable',
 862                                 CONTENT_MODEL_WIKITEXT,
 863                                 'Foo',
 864                                 'link',
 865                                 false
 866                         ],
 867                         [ 'WikiPageTest_testIsCountable',
 868                                 CONTENT_MODEL_WIKITEXT,
 869                                 'Foo [[bar]]',
 870                                 'link',
 871                                 true
 872                         ],
 873
 874                         // redirects
 875                         [ 'WikiPageTest_testIsCountable',
 876                                 CONTENT_MODEL_WIKITEXT,
 877                                 '#REDIRECT [[bar]]',
 878                                 'any',
 879                                 false
 880                         ],
 881                         [ 'WikiPageTest_testIsCountable',
 882                                 CONTENT_MODEL_WIKITEXT,
 883                                 '#REDIRECT [[bar]]',
 884                                 'link',
 885                                 false
 886                         ],
 887
 888                         // not a content namespace
 889                         [ 'Talk:WikiPageTest_testIsCountable',
 890                                 CONTENT_MODEL_WIKITEXT,
 891                                 'Foo',
 892                                 'any',
 893                                 false
 894                         ],
 895                         [ 'Talk:WikiPageTest_testIsCountable',
 896                                 CONTENT_MODEL_WIKITEXT,
 897                                 'Foo [[bar]]',
 898                                 'link',
 899                                 false
 900                         ],
 901
 902                         // not a content namespace, different model
 903                         [ 'MediaWiki:WikiPageTest_testIsCountable.js',
 904                                 null,
 905                                 'Foo',
 906                                 'any',
 907                                 false
 908                         ],
 909                         [ 'MediaWiki:WikiPageTest_testIsCountable.js',
 910                                 null,
 911                                 'Foo [[bar]]',
 912                                 'link',
 913                                 false
 914                         ],
 915                 ];
 916         }
 917
 918         /**
 919          * @dataProvider provideIsCountable
 920          * @covers WikiPage::isCountable
 921          */
 922         public function testIsCountable( $title, $model, $text, $mode, $expected ) {
 923                 global $wgContentHandlerUseDB;
 924
 925                 $this->setMwGlobals( 'wgArticleCountMethod', $mode );
 926
 927                 $title = Title::newFromText( $title );
 928
 929                 if ( !$wgContentHandlerUseDB
 930                         && $model
 931                         && ContentHandler::getDefaultModelFor( $title ) != $model
 932                 ) {
 933                         $this->markTestSkipped( "Can not use non-default content model $model for "
 934                                 . $title->getPrefixedDBkey() . " with \$wgContentHandlerUseDB disabled." );
 935                 }
 936
 937                 $page = $this->createPage( $title, $text, $model );
 938
 939                 $editInfo = $page->prepareContentForEdit( $page->getContent() );
 940
 941                 $v = $page->isCountable();
 942                 $w = $page->isCountable( $editInfo );
 943
 944                 $this->assertEquals(
 945                         $expected,
 946                         $v,
 947                         "isCountable( null ) returned unexpected value " . var_export( $v, true )
 948                                 . " instead of " . var_export( $expected, true )
 949                         . " in mode `$mode` for text \"$text\""
 950                 );
 951
 952                 $this->assertEquals(
 953                         $expected,
 954                         $w,
 955                         "isCountable( \$editInfo ) returned unexpected value " . var_export( $v, true )
 956                                 . " instead of " . var_export( $expected, true )
 957                         . " in mode `$mode` for text \"$text\""
 958                 );
 959         }
 960
 961         public function provideGetParserOutput() {
 962                 return [
 963                         [
 964                                 CONTENT_MODEL_WIKITEXT,
 965                                 "hello ''world''\n",
 966                                 "<div class=\"mw-parser-output\"><p>hello <i>world</i></p></div>"
 967                         ],
 968                         // @todo more...?
 969                 ];
 970         }
 971
 972         /**
 973          * @dataProvider provideGetParserOutput
 974          * @covers WikiPage::getParserOutput
 975          */
 976         public function testGetParserOutput( $model, $text, $expectedHtml ) {
 977                 $page = $this->createPage( __METHOD__, $text, $model );
 978
 979                 $opt = $page->makeParserOptions( 'canonical' );
 980                 $po = $page->getParserOutput( $opt );
 981                 $text = $po->getText();
 982
 983                 $text = trim( preg_replace( '/<!--.*?-->/sm', '', $text ) ); # strip injected comments
 984                 $text = preg_replace( '!\s*(</p>|</div>)!sm', '\1', $text ); # don't let tidy confuse us
 985
 986                 $this->assertEquals( $expectedHtml, $text );
 987
 988                 return $po;
 989         }
 990
 991         /**
 992          * @covers WikiPage::getParserOutput
 993          */
 994         public function testGetParserOutput_nonexisting() {
 995                 $page = new WikiPage( Title::newFromText( __METHOD__ ) );
 996
 997                 $opt = new ParserOptions();
 998                 $po = $page->getParserOutput( $opt );
 999
1000                 $this->assertFalse( $po, "getParserOutput() shall return false for non-existing pages." );
1001         }
1002
1003         /**
1004          * @covers WikiPage::getParserOutput
1005          */
1006         public function testGetParserOutput_badrev() {
1007                 $page = $this->createPage( __METHOD__, 'dummy', CONTENT_MODEL_WIKITEXT );
1008
1009                 $opt = new ParserOptions();
1010                 $po = $page->getParserOutput( $opt, $page->getLatest() + 1234 );
1011
1012                 // @todo would be neat to also test deleted revision
1013
1014                 $this->assertFalse( $po, "getParserOutput() shall return false for non-existing revisions." );
1015         }
1016
1017         public static $sections =
1018
1019                 "Intro
1020
1021 == stuff ==
1022 hello world
1023
1024 == test ==
1025 just a test
1026
1027 == foo ==
1028 more stuff
1029 ";
1030
1031         public function dataReplaceSection() {
1032                 // NOTE: assume the Help namespace to contain wikitext
1033                 return [
1034                         [ 'Help:WikiPageTest_testReplaceSection',
1035                                 CONTENT_MODEL_WIKITEXT,
1036                                 self::$sections,
1037                                 "0",
1038                                 "No more",
1039                                 null,
1040                                 trim( preg_replace( '/^Intro/sm', 'No more', self::$sections ) )
1041                         ],
1042                         [ 'Help:WikiPageTest_testReplaceSection',
1043                                 CONTENT_MODEL_WIKITEXT,
1044                                 self::$sections,
1045                                 "",
1046                                 "No more",
1047                                 null,
1048                                 "No more"
1049                         ],
1050                         [ 'Help:WikiPageTest_testReplaceSection',
1051                                 CONTENT_MODEL_WIKITEXT,
1052                                 self::$sections,
1053                                 "2",
1054                                 "== TEST ==\nmore fun",
1055                                 null,
1056                                 trim( preg_replace( '/^== test ==.*== foo ==/sm',
1057                                         "== TEST ==\nmore fun\n\n== foo ==",
1058                                         self::$sections ) )
1059                         ],
1060                         [ 'Help:WikiPageTest_testReplaceSection',
1061                                 CONTENT_MODEL_WIKITEXT,
1062                                 self::$sections,
1063                                 "8",
1064                                 "No more",
1065                                 null,
1066                                 trim( self::$sections )
1067                         ],
1068                         [ 'Help:WikiPageTest_testReplaceSection',
1069                                 CONTENT_MODEL_WIKITEXT,
1070                                 self::$sections,
1071                                 "new",
1072                                 "No more",
1073                                 "New",
1074                                 trim( self::$sections ) . "\n\n== New ==\n\nNo more"
1075                         ],
1076                 ];
1077         }
1078
1079         /**
1080          * @dataProvider dataReplaceSection
1081          * @covers WikiPage::replaceSectionContent
1082          */
1083         public function testReplaceSectionContent( $title, $model, $text, $section,
1084                 $with, $sectionTitle, $expected
1085         ) {
1086                 $page = $this->createPage( $title, $text, $model );
1087
1088                 $content = ContentHandler::makeContent( $with, $page->getTitle(), $page->getContentModel() );
1089                 $c = $page->replaceSectionContent( $section, $content, $sectionTitle );
1090
1091                 $this->assertEquals( $expected, is_null( $c ) ? null : trim( $c->getNativeData() ) );
1092         }
1093
1094         /**
1095          * @dataProvider dataReplaceSection
1096          * @covers WikiPage::replaceSectionAtRev
1097          */
1098         public function testReplaceSectionAtRev( $title, $model, $text, $section,
1099                 $with, $sectionTitle, $expected
1100         ) {
1101                 $page = $this->createPage( $title, $text, $model );
1102                 $baseRevId = $page->getLatest();
1103
1104                 $content = ContentHandler::makeContent( $with, $page->getTitle(), $page->getContentModel() );
1105                 $c = $page->replaceSectionAtRev( $section, $content, $sectionTitle, $baseRevId );
1106
1107                 $this->assertEquals( $expected, is_null( $c ) ? null : trim( $c->getNativeData() ) );
1108         }
1109
1110         /**
1111          * @covers WikiPage::getOldestRevision
1112          */
1113         public function testGetOldestRevision() {
1114                 $page = $this->newPage( __METHOD__ );
1115                 $page->doEditContent(
1116                         new WikitextContent( 'one' ),
1117                         "first edit",
1118                         EDIT_NEW
1119                 );
1120                 $rev1 = $page->getRevision();
1121
1122                 $page = new WikiPage( $page->getTitle() );
1123                 $page->doEditContent(
1124                         new WikitextContent( 'two' ),
1125                         "second edit",
1126                         EDIT_UPDATE
1127                 );
1128
1129                 $page = new WikiPage( $page->getTitle() );
1130                 $page->doEditContent(
1131                         new WikitextContent( 'three' ),
1132                         "third edit",
1133                         EDIT_UPDATE
1134                 );
1135
1136                 // sanity check
1137                 $this->assertNotEquals(
1138                         $rev1->getId(),
1139                         $page->getRevision()->getId(),
1140                         '$page->getRevision()->getId()'
1141                 );
1142
1143                 // actual test
1144                 $this->assertEquals(
1145                         $rev1->getId(),
1146                         $page->getOldestRevision()->getId(),
1147                         '$page->getOldestRevision()->getId()'
1148                 );
1149         }
1150
1151         /**
1152          * @covers WikiPage::doRollback
1153          * @covers WikiPage::commitRollback
1154          */
1155         public function testDoRollback() {
1156                 // FIXME: fails under postgres
1157                 $this->markTestSkippedIfDbType( 'postgres' );
1158
1159                 $admin = $this->getTestSysop()->getUser();
1160                 $user1 = $this->getTestUser()->getUser();
1161                 // Use the confirmed group for user2 to make sure the user is different
1162                 $user2 = $this->getTestUser( [ 'confirmed' ] )->getUser();
1163
1164                 // make sure we can test autopatrolling
1165                 $this->setMwGlobals( 'wgUseRCPatrol', true );
1166
1167                 // TODO: MCR: test rollback of multiple slots!
1168                 $page = $this->newPage( __METHOD__ );
1169
1170                 // Make some edits
1171                 $text = "one";
1172                 $status1 = $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
1173                         "section one", EDIT_NEW, false, $admin );
1174
1175                 $text .= "\n\ntwo";
1176                 $status2 = $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
1177                         "adding section two", 0, false, $user1 );
1178
1179                 $text .= "\n\nthree";
1180                 $status3 = $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
1181                         "adding section three", 0, false, $user2 );
1182
1183                 /** @var Revision $rev1 */
1184                 /** @var Revision $rev2 */
1185                 /** @var Revision $rev3 */
1186                 $rev1 = $status1->getValue()['revision'];
1187                 $rev2 = $status2->getValue()['revision'];
1188                 $rev3 = $status3->getValue()['revision'];
1189
1190                 /**
1191                  * We are having issues with doRollback spuriously failing. Apparently
1192                  * the last revision somehow goes missing or not committed under some
1193                  * circumstances. So, make sure the revisions have the correct usernames.
1194                  */
1195                 $this->assertEquals( 3, Revision::countByPageId( wfGetDB( DB_REPLICA ), $page->getId() ) );
1196                 $this->assertEquals( $admin->getName(), $rev1->getUserText() );
1197                 $this->assertEquals( $user1->getName(), $rev2->getUserText() );
1198                 $this->assertEquals( $user2->getName(), $rev3->getUserText() );
1199
1200                 // Now, try the actual rollback
1201                 $token = $admin->getEditToken( 'rollback' );
1202                 $rollbackErrors = $page->doRollback(
1203                         $user2->getName(),
1204                         "testing rollback",
1205                         $token,
1206                         false,
1207                         $resultDetails,
1208                         $admin
1209                 );
1210
1211                 if ( $rollbackErrors ) {
1212                         $this->fail(
1213                                 "Rollback failed:\n" .
1214                                 print_r( $rollbackErrors, true ) . ";\n" .
1215                                 print_r( $resultDetails, true )
1216                         );
1217                 }
1218
1219                 $page = new WikiPage( $page->getTitle() );
1220                 $this->assertEquals( $rev2->getSha1(), $page->getRevision()->getSha1(),
1221                         "rollback did not revert to the correct revision" );
1222                 $this->assertEquals( "one\n\ntwo", $page->getContent()->getNativeData() );
1223
1224                 $rc = MediaWikiServices::getInstance()->getRevisionStore()->getRecentChange(
1225                         $page->getRevision()->getRevisionRecord()
1226                 );
1227
1228                 $this->assertNotNull( $rc, 'RecentChanges entry' );
1229                 $this->assertEquals(
1230                         RecentChange::PRC_AUTOPATROLLED,
1231                         $rc->getAttribute( 'rc_patrolled' ),
1232                         'rc_patrolled'
1233                 );
1234
1235                 // TODO: MCR: assert origin once we write slot data
1236                 // $mainSlot = $page->getRevision()->getRevisionRecord()->getSlot( SlotRecord::MAIN );
1237                 // $this->assertTrue( $mainSlot->isInherited(), 'isInherited' );
1238                 // $this->assertSame( $rev2->getId(), $mainSlot->getOrigin(), 'getOrigin' );
1239         }
1240
1241         /**
1242          * @covers WikiPage::doRollback
1243          * @covers WikiPage::commitRollback
1244          */
1245         public function testDoRollbackFailureSameContent() {
1246                 $admin = $this->getTestSysop()->getUser();
1247
1248                 $text = "one";
1249                 $page = $this->newPage( __METHOD__ );
1250                 $page->doEditContent(
1251                         ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
1252                         "section one",
1253                         EDIT_NEW,
1254                         false,
1255                         $admin
1256                 );
1257                 $rev1 = $page->getRevision();
1258
1259                 $user1 = $this->getTestUser( [ 'sysop' ] )->getUser();
1260                 $text .= "\n\ntwo";
1261                 $page = new WikiPage( $page->getTitle() );
1262                 $page->doEditContent(
1263                         ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
1264                         "adding section two",
1265                         0,
1266                         false,
1267                         $user1
1268                 );
1269
1270                 # now, do a the rollback from the same user was doing the edit before
1271                 $resultDetails = [];
1272                 $token = $user1->getEditToken( 'rollback' );
1273                 $errors = $page->doRollback(
1274                         $user1->getName(),
1275                         "testing revert same user",
1276                         $token,
1277                         false,
1278                         $resultDetails,
1279                         $admin
1280                 );
1281
1282                 $this->assertEquals( [], $errors, "Rollback failed same user" );
1283
1284                 # now, try the rollback
1285                 $resultDetails = [];
1286                 $token = $admin->getEditToken( 'rollback' );
1287                 $errors = $page->doRollback(
1288                         $user1->getName(),
1289                         "testing revert",
1290                         $token,
1291                         false,
1292                         $resultDetails,
1293                         $admin
1294                 );
1295
1296                 $this->assertEquals(
1297                         [
1298                                 [
1299                                         'alreadyrolled',
1300                                         __METHOD__,
1301                                         $user1->getName(),
1302                                         $admin->getName(),
1303                                 ],
1304                         ],
1305                         $errors,
1306                         "Rollback not failed"
1307                 );
1308
1309                 $page = new WikiPage( $page->getTitle() );
1310                 $this->assertEquals( $rev1->getSha1(), $page->getRevision()->getSha1(),
1311                         "rollback did not revert to the correct revision" );
1312                 $this->assertEquals( "one", $page->getContent()->getNativeData() );
1313         }
1314
1315         /**
1316          * Tests tagging for edits that do rollback action
1317          * @covers WikiPage::doRollback
1318          */
1319         public function testDoRollbackTagging() {
1320                 if ( !in_array( 'mw-rollback', ChangeTags::getSoftwareTags() ) ) {
1321                         $this->markTestSkipped( 'Rollback tag deactivated, skipped the test.' );
1322                 }
1323
1324                 $admin = new User();
1325                 $admin->setName( 'Administrator' );
1326                 $admin->addToDatabase();
1327
1328                 $text = 'First line';
1329                 $page = $this->newPage( 'WikiPageTest_testDoRollbackTagging' );
1330                 $page->doEditContent(
1331                         ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
1332                         'Added first line',
1333                         EDIT_NEW,
1334                         false,
1335                         $admin
1336                 );
1337
1338                 $secondUser = new User();
1339                 $secondUser->setName( '92.65.217.32' );
1340                 $text .= '\n\nSecond line';
1341                 $page = new WikiPage( $page->getTitle() );
1342                 $page->doEditContent(
1343                         ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
1344                         'Adding second line',
1345                         0,
1346                         false,
1347                         $secondUser
1348                 );
1349
1350                 // Now, try the rollback
1351                 $admin->addGroup( 'sysop' ); // Make the test user a sysop
1352                 $token = $admin->getEditToken( 'rollback' );
1353                 $errors = $page->doRollback(
1354                         $secondUser->getName(),
1355                         'testing rollback',
1356                         $token,
1357                         false,
1358                         $resultDetails,
1359                         $admin
1360                 );
1361
1362                 // If doRollback completed without errors
1363                 if ( $errors === [] ) {
1364                         $tags = $resultDetails[ 'tags' ];
1365                         $this->assertContains( 'mw-rollback', $tags );
1366                 }
1367         }
1368
1369         public function provideGetAutoDeleteReason() {
1370                 return [
1371                         [
1372                                 [],
1373                                 false,
1374                                 false
1375                         ],
1376
1377                         [
1378                                 [
1379                                         [ "first edit", null ],
1380                                 ],
1381                                 "/first edit.*only contributor/",
1382                                 false
1383                         ],
1384
1385                         [
1386                                 [
1387                                         [ "first edit", null ],
1388                                         [ "second edit", null ],
1389                                 ],
1390                                 "/second edit.*only contributor/",
1391                                 true
1392                         ],
1393
1394                         [
1395                                 [
1396                                         [ "first edit", "127.0.2.22" ],
1397                                         [ "second edit", "127.0.3.33" ],
1398                                 ],
1399                                 "/second edit/",
1400                                 true
1401                         ],
1402
1403                         [
1404                                 [
1405                                         [
1406                                                 "first edit: "
1407                                                         . "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam "
1408                                                         . " nonumy eirmod tempor invidunt ut labore et dolore magna "
1409                                                         . "aliquyam erat, sed diam voluptua. At vero eos et accusam "
1410                                                         . "et justo duo dolores et ea rebum. Stet clita kasd gubergren, "
1411                                                         . "no sea  takimata sanctus est Lorem ipsum dolor sit amet.'",
1412                                                 null
1413                                         ],
1414                                 ],
1415                                 '/first edit:.*\.\.\."/',
1416                                 false
1417                         ],
1418
1419                         [
1420                                 [
1421                                         [ "first edit", "127.0.2.22" ],
1422                                         [ "", "127.0.3.33" ],
1423                                 ],
1424                                 "/before blanking.*first edit/",
1425                                 true
1426                         ],
1427
1428                 ];
1429         }
1430
1431         /**
1432          * @dataProvider provideGetAutoDeleteReason
1433          * @covers WikiPage::getAutoDeleteReason
1434          */
1435         public function testGetAutoDeleteReason( $edits, $expectedResult, $expectedHistory ) {
1436                 global $wgUser;
1437
1438                 // NOTE: assume Help namespace to contain wikitext
1439                 $page = $this->newPage( "Help:WikiPageTest_testGetAutoDeleteReason" );
1440
1441                 $c = 1;
1442
1443                 foreach ( $edits as $edit ) {
1444                         $user = new User();
1445
1446                         if ( !empty( $edit[1] ) ) {
1447                                 $user->setName( $edit[1] );
1448                         } else {
1449                                 $user = $wgUser;
1450                         }
1451
1452                         $content = ContentHandler::makeContent( $edit[0], $page->getTitle(), $page->getContentModel() );
1453
1454                         $page->doEditContent( $content, "test edit $c", $c < 2 ? EDIT_NEW : 0, false, $user );
1455
1456                         $c += 1;
1457                 }
1458
1459                 $reason = $page->getAutoDeleteReason( $hasHistory );
1460
1461                 if ( is_bool( $expectedResult ) || is_null( $expectedResult ) ) {
1462                         $this->assertEquals( $expectedResult, $reason );
1463                 } else {
1464                         $this->assertTrue( (bool)preg_match( $expectedResult, $reason ),
1465                                 "Autosummary didn't match expected pattern $expectedResult: $reason" );
1466                 }
1467
1468                 $this->assertEquals( $expectedHistory, $hasHistory,
1469                         "expected \$hasHistory to be " . var_export( $expectedHistory, true ) );
1470
1471                 $page->doDeleteArticle( "done" );
1472         }
1473
1474         public function providePreSaveTransform() {
1475                 return [
1476                         [ 'hello this is ~~~',
1477                                 "hello this is [[Special:Contributions/127.0.0.1|127.0.0.1]]",
1478                         ],
1479                         [ 'hello \'\'this\'\' is <nowiki>~~~</nowiki>',
1480                                 'hello \'\'this\'\' is <nowiki>~~~</nowiki>',
1481                         ],
1482                 ];
1483         }
1484
1485         /**
1486          * @covers WikiPage::factory
1487          */
1488         public function testWikiPageFactory() {
1489                 $title = Title::makeTitle( NS_FILE, 'Someimage.png' );
1490                 $page = WikiPage::factory( $title );
1491                 $this->assertEquals( WikiFilePage::class, get_class( $page ) );
1492
1493                 $title = Title::makeTitle( NS_CATEGORY, 'SomeCategory' );
1494                 $page = WikiPage::factory( $title );
1495                 $this->assertEquals( WikiCategoryPage::class, get_class( $page ) );
1496
1497                 $title = Title::makeTitle( NS_MAIN, 'SomePage' );
1498                 $page = WikiPage::factory( $title );
1499                 $this->assertEquals( WikiPage::class, get_class( $page ) );
1500         }
1501
1502         /**
1503          * @covers WikiPage::loadPageData
1504          * @covers WikiPage::wasLoadedFrom
1505          */
1506         public function testLoadPageData() {
1507                 $title = Title::makeTitle( NS_MAIN, 'SomePage' );
1508                 $page = WikiPage::factory( $title );
1509
1510                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_NORMAL ) );
1511                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_LATEST ) );
1512                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_LOCKING ) );
1513                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_EXCLUSIVE ) );
1514
1515                 $page->loadPageData( IDBAccessObject::READ_NORMAL );
1516                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_NORMAL ) );
1517                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_LATEST ) );
1518                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_LOCKING ) );
1519                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_EXCLUSIVE ) );
1520
1521                 $page->loadPageData( IDBAccessObject::READ_LATEST );
1522                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_NORMAL ) );
1523                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_LATEST ) );
1524                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_LOCKING ) );
1525                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_EXCLUSIVE ) );
1526
1527                 $page->loadPageData( IDBAccessObject::READ_LOCKING );
1528                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_NORMAL ) );
1529                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_LATEST ) );
1530                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_LOCKING ) );
1531                 $this->assertFalse( $page->wasLoadedFrom( IDBAccessObject::READ_EXCLUSIVE ) );
1532
1533                 $page->loadPageData( IDBAccessObject::READ_EXCLUSIVE );
1534                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_NORMAL ) );
1535                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_LATEST ) );
1536                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_LOCKING ) );
1537                 $this->assertTrue( $page->wasLoadedFrom( IDBAccessObject::READ_EXCLUSIVE ) );
1538         }
1539
1540         /**
1541          * @dataProvider provideCommentMigrationOnDeletion
1542          *
1543          * @param int $writeStage
1544          * @param int $readStage
1545          */
1546         public function testCommentMigrationOnDeletion( $writeStage, $readStage ) {
1547                 $this->setMwGlobals( 'wgCommentTableSchemaMigrationStage', $writeStage );
1548                 $this->overrideMwServices();
1549
1550                 $dbr = wfGetDB( DB_REPLICA );
1551
1552                 $page = $this->createPage(
1553                         __METHOD__,
1554                         "foo",
1555                         CONTENT_MODEL_WIKITEXT
1556                 );
1557                 $revid = $page->getLatest();
1558                 if ( $writeStage > MIGRATION_OLD ) {
1559                         $comment_id = $dbr->selectField(
1560                                 'revision_comment_temp',
1561                                 'revcomment_comment_id',
1562                                 [ 'revcomment_rev' => $revid ],
1563                                 __METHOD__
1564                         );
1565                 }
1566
1567                 $this->setMwGlobals( 'wgCommentTableSchemaMigrationStage', $readStage );
1568                 $this->overrideMwServices();
1569
1570                 $page->doDeleteArticle( "testing deletion" );
1571
1572                 if ( $readStage > MIGRATION_OLD ) {
1573                         // Didn't leave behind any 'revision_comment_temp' rows
1574                         $n = $dbr->selectField(
1575                                 'revision_comment_temp', 'COUNT(*)', [ 'revcomment_rev' => $revid ], __METHOD__
1576                         );
1577                         $this->assertEquals( 0, $n, 'no entry in revision_comment_temp after deletion' );
1578
1579                         // Copied or upgraded the comment_id, as applicable
1580                         $ar_comment_id = $dbr->selectField(
1581                                 'archive',
1582                                 'ar_comment_id',
1583                                 [ 'ar_rev_id' => $revid ],
1584                                 __METHOD__
1585                         );
1586                         if ( $writeStage > MIGRATION_OLD ) {
1587                                 $this->assertSame( $comment_id, $ar_comment_id );
1588                         } else {
1589                                 $this->assertNotEquals( 0, $ar_comment_id );
1590                         }
1591                 }
1592
1593                 // Copied rev_comment, if applicable
1594                 if ( $readStage <= MIGRATION_WRITE_BOTH && $writeStage <= MIGRATION_WRITE_BOTH ) {
1595                         $ar_comment = $dbr->selectField(
1596                                 'archive',
1597                                 'ar_comment',
1598                                 [ 'ar_rev_id' => $revid ],
1599                                 __METHOD__
1600                         );
1601                         $this->assertSame( 'testing', $ar_comment );
1602                 }
1603         }
1604
1605         public function provideCommentMigrationOnDeletion() {
1606                 return [
1607                         [ MIGRATION_OLD, MIGRATION_OLD ],
1608                         [ MIGRATION_OLD, MIGRATION_WRITE_BOTH ],
1609                         [ MIGRATION_OLD, MIGRATION_WRITE_NEW ],
1610                         [ MIGRATION_WRITE_BOTH, MIGRATION_OLD ],
1611                         [ MIGRATION_WRITE_BOTH, MIGRATION_WRITE_BOTH ],
1612                         [ MIGRATION_WRITE_BOTH, MIGRATION_WRITE_NEW ],
1613                         [ MIGRATION_WRITE_BOTH, MIGRATION_NEW ],
1614                         [ MIGRATION_WRITE_NEW, MIGRATION_WRITE_BOTH ],
1615                         [ MIGRATION_WRITE_NEW, MIGRATION_WRITE_NEW ],
1616                         [ MIGRATION_WRITE_NEW, MIGRATION_NEW ],
1617                         [ MIGRATION_NEW, MIGRATION_WRITE_BOTH ],
1618                         [ MIGRATION_NEW, MIGRATION_WRITE_NEW ],
1619                         [ MIGRATION_NEW, MIGRATION_NEW ],
1620                 ];
1621         }
1622
1623         /**
1624          * @covers WikiPage::updateCategoryCounts
1625          */
1626         public function testUpdateCategoryCounts() {
1627                 $page = new WikiPage( Title::newFromText( __METHOD__ ) );
1628
1629                 // Add an initial category
1630                 $page->updateCategoryCounts( [ 'A' ], [], 0 );
1631
1632                 $this->assertEquals( 1, Category::newFromName( 'A' )->getPageCount() );
1633                 $this->assertEquals( 0, Category::newFromName( 'B' )->getPageCount() );
1634                 $this->assertEquals( 0, Category::newFromName( 'C' )->getPageCount() );
1635
1636                 // Add a new category
1637                 $page->updateCategoryCounts( [ 'B' ], [], 0 );
1638
1639                 $this->assertEquals( 1, Category::newFromName( 'A' )->getPageCount() );
1640                 $this->assertEquals( 1, Category::newFromName( 'B' )->getPageCount() );
1641                 $this->assertEquals( 0, Category::newFromName( 'C' )->getPageCount() );
1642
1643                 // Add and remove a category
1644                 $page->updateCategoryCounts( [ 'C' ], [ 'A' ], 0 );
1645
1646                 $this->assertEquals( 0, Category::newFromName( 'A' )->getPageCount() );
1647                 $this->assertEquals( 1, Category::newFromName( 'B' )->getPageCount() );
1648                 $this->assertEquals( 1, Category::newFromName( 'C' )->getPageCount() );
1649         }
1650
1651         public function provideUpdateRedirectOn() {
1652                 yield [ '#REDIRECT [[Foo]]', true, null, true, true, 0 ];
1653                 yield [ '#REDIRECT [[Foo]]', true, 'Foo', true, false, 1 ];
1654                 yield [ 'SomeText', false, null, false, true, 0 ];
1655                 yield [ 'SomeText', false, 'Foo', false, false, 1 ];
1656         }
1657
1658         /**
1659          * @dataProvider provideUpdateRedirectOn
1660          * @covers WikiPage::updateRedirectOn
1661          *
1662          * @param string $initialText
1663          * @param bool $initialRedirectState
1664          * @param string|null $redirectTitle
1665          * @param bool|null $lastRevIsRedirect
1666          * @param bool $expectedSuccess
1667          * @param int $expectedRowCount
1668          */
1669         public function testUpdateRedirectOn(
1670                 $initialText,
1671                 $initialRedirectState,
1672                 $redirectTitle,
1673                 $lastRevIsRedirect,
1674                 $expectedSuccess,
1675                 $expectedRowCount
1676         ) {
1677                 // FIXME: fails under sqlite and postgres
1678                 $this->markTestSkippedIfDbType( 'sqlite' );
1679                 $this->markTestSkippedIfDbType( 'postgres' );
1680                 static $pageCounter = 0;
1681                 $pageCounter++;
1682
1683                 $page = $this->createPage( Title::newFromText( __METHOD__ . $pageCounter ), $initialText );
1684                 $this->assertSame( $initialRedirectState, $page->isRedirect() );
1685
1686                 $redirectTitle = is_string( $redirectTitle )
1687                         ? Title::newFromText( $redirectTitle )
1688                         : $redirectTitle;
1689
1690                 $success = $page->updateRedirectOn( $this->db, $redirectTitle, $lastRevIsRedirect );
1691                 $this->assertSame( $expectedSuccess, $success, 'Success assertion' );
1692                 /**
1693                  * updateRedirectOn explicitly updates the redirect table (and not the page table).
1694                  * Most of core checks the page table for redirect status, so we have to be ugly and
1695                  * assert a select from the table here.
1696                  */
1697                 $this->assertRedirectTableCountForPageId( $page->getId(), $expectedRowCount );
1698         }
1699
1700         private function assertRedirectTableCountForPageId( $pageId, $expected ) {
1701                 $this->assertSelect(
1702                         'redirect',
1703                         'COUNT(*)',
1704                         [ 'rd_from' => $pageId ],
1705                         [ [ strval( $expected ) ] ]
1706                 );
1707         }
1708
1709         /**
1710          * @covers WikiPage::insertRedirectEntry
1711          */
1712         public function testInsertRedirectEntry_insertsRedirectEntry() {
1713                 $page = $this->createPage( Title::newFromText( __METHOD__ ), 'A' );
1714                 $this->assertRedirectTableCountForPageId( $page->getId(), 0 );
1715
1716                 $targetTitle = Title::newFromText( 'SomeTarget#Frag' );
1717                 $targetTitle->mInterwiki = 'eninter';
1718                 $page->insertRedirectEntry( $targetTitle, null );
1719
1720                 $this->assertSelect(
1721                         'redirect',
1722                         [ 'rd_from', 'rd_namespace', 'rd_title', 'rd_fragment', 'rd_interwiki' ],
1723                         [ 'rd_from' => $page->getId() ],
1724                         [ [
1725                                 strval( $page->getId() ),
1726                                 strval( $targetTitle->getNamespace() ),
1727                                 strval( $targetTitle->getDBkey() ),
1728                                 strval( $targetTitle->getFragment() ),
1729                                 strval( $targetTitle->getInterwiki() ),
1730                         ] ]
1731                 );
1732         }
1733
1734         /**
1735          * @covers WikiPage::insertRedirectEntry
1736          */
1737         public function testInsertRedirectEntry_insertsRedirectEntryWithPageLatest() {
1738                 $page = $this->createPage( Title::newFromText( __METHOD__ ), 'A' );
1739                 $this->assertRedirectTableCountForPageId( $page->getId(), 0 );
1740
1741                 $targetTitle = Title::newFromText( 'SomeTarget#Frag' );
1742                 $targetTitle->mInterwiki = 'eninter';
1743                 $page->insertRedirectEntry( $targetTitle, $page->getLatest() );
1744
1745                 $this->assertSelect(
1746                         'redirect',
1747                         [ 'rd_from', 'rd_namespace', 'rd_title', 'rd_fragment', 'rd_interwiki' ],
1748                         [ 'rd_from' => $page->getId() ],
1749                         [ [
1750                                 strval( $page->getId() ),
1751                                 strval( $targetTitle->getNamespace() ),
1752                                 strval( $targetTitle->getDBkey() ),
1753                                 strval( $targetTitle->getFragment() ),
1754                                 strval( $targetTitle->getInterwiki() ),
1755                         ] ]
1756                 );
1757         }
1758
1759         /**
1760          * @covers WikiPage::insertRedirectEntry
1761          */
1762         public function testInsertRedirectEntry_doesNotInsertIfPageLatestIncorrect() {
1763                 $page = $this->createPage( Title::newFromText( __METHOD__ ), 'A' );
1764                 $this->assertRedirectTableCountForPageId( $page->getId(), 0 );
1765
1766                 $targetTitle = Title::newFromText( 'SomeTarget#Frag' );
1767                 $targetTitle->mInterwiki = 'eninter';
1768                 $page->insertRedirectEntry( $targetTitle, 215251 );
1769
1770                 $this->assertRedirectTableCountForPageId( $page->getId(), 0 );
1771         }
1772
1773         private function getRow( array $overrides = [] ) {
1774                 $row = [
1775                         'page_id' => '44',
1776                         'page_len' => '76',
1777                         'page_is_redirect' => '1',
1778                         'page_latest' => '99',
1779                         'page_namespace' => '3',
1780                         'page_title' => 'JaJaTitle',
1781                         'page_restrictions' => 'edit=autoconfirmed,sysop:move=sysop',
1782                         'page_touched' => '20120101020202',
1783                         'page_links_updated' => '20140101020202',
1784                 ];
1785                 foreach ( $overrides as $key => $value ) {
1786                         $row[$key] = $value;
1787                 }
1788                 return (object)$row;
1789         }
1790
1791         public function provideNewFromRowSuccess() {
1792                 yield 'basic row' => [
1793                         $this->getRow(),
1794                         function ( WikiPage $wikiPage, self $test ) {
1795                                 $test->assertSame( 44, $wikiPage->getId() );
1796                                 $test->assertSame( 76, $wikiPage->getTitle()->getLength() );
1797                                 $test->assertTrue( $wikiPage->isRedirect() );
1798                                 $test->assertSame( 99, $wikiPage->getLatest() );
1799                                 $test->assertSame( 3, $wikiPage->getTitle()->getNamespace() );
1800                                 $test->assertSame( 'JaJaTitle', $wikiPage->getTitle()->getDBkey() );
1801                                 $test->assertSame(
1802                                         [
1803                                                 'edit' => [ 'autoconfirmed', 'sysop' ],
1804                                                 'move' => [ 'sysop' ],
1805                                         ],
1806                                         $wikiPage->getTitle()->getAllRestrictions()
1807                                 );
1808                                 $test->assertSame( '20120101020202', $wikiPage->getTouched() );
1809                                 $test->assertSame( '20140101020202', $wikiPage->getLinksTimestamp() );
1810                         }
1811                 ];
1812                 yield 'different timestamp formats' => [
1813                         $this->getRow( [
1814                                 'page_touched' => '2012-01-01 02:02:02',
1815                                 'page_links_updated' => '2014-01-01 02:02:02',
1816                         ] ),
1817                         function ( WikiPage $wikiPage, self $test ) {
1818                                 $test->assertSame( '20120101020202', $wikiPage->getTouched() );
1819                                 $test->assertSame( '20140101020202', $wikiPage->getLinksTimestamp() );
1820                         }
1821                 ];
1822                 yield 'no restrictions' => [
1823                         $this->getRow( [
1824                                 'page_restrictions' => '',
1825                         ] ),
1826                         function ( WikiPage $wikiPage, self $test ) {
1827                         $test->assertSame(
1828                                 [
1829                                         'edit' => [],
1830                                         'move' => [],
1831                                 ],
1832                                 $wikiPage->getTitle()->getAllRestrictions()
1833                         );
1834                         }
1835                 ];
1836                 yield 'not redirect' => [
1837                         $this->getRow( [
1838                                 'page_is_redirect' => '0',
1839                         ] ),
1840                         function ( WikiPage $wikiPage, self $test ) {
1841                                 $test->assertFalse( $wikiPage->isRedirect() );
1842                         }
1843                 ];
1844         }
1845
1846         /**
1847          * @covers WikiPage::newFromRow
1848          * @covers WikiPage::loadFromRow
1849          * @dataProvider provideNewFromRowSuccess
1850          *
1851          * @param object $row
1852          * @param callable $assertions
1853          */
1854         public function testNewFromRow( $row, $assertions ) {
1855                 $page = WikiPage::newFromRow( $row, 'fromdb' );
1856                 $assertions( $page, $this );
1857         }
1858
1859         public function provideTestNewFromId_returnsNullOnBadPageId() {
1860                 yield[ 0 ];
1861                 yield[ -11 ];
1862         }
1863
1864         /**
1865          * @covers WikiPage::newFromID
1866          * @dataProvider provideTestNewFromId_returnsNullOnBadPageId
1867          */
1868         public function testNewFromId_returnsNullOnBadPageId( $pageId ) {
1869                 $this->assertNull( WikiPage::newFromID( $pageId ) );
1870         }
1871
1872         /**
1873          * @covers WikiPage::newFromID
1874          */
1875         public function testNewFromId_appearsToFetchCorrectRow() {
1876                 $createdPage = $this->createPage( __METHOD__, 'Xsfaij09' );
1877                 $fetchedPage = WikiPage::newFromID( $createdPage->getId() );
1878                 $this->assertSame( $createdPage->getId(), $fetchedPage->getId() );
1879                 $this->assertEquals(
1880                         $createdPage->getContent()->getNativeData(),
1881                         $fetchedPage->getContent()->getNativeData()
1882                 );
1883         }
1884
1885         /**
1886          * @covers WikiPage::newFromID
1887          */
1888         public function testNewFromId_returnsNullOnNonExistingId() {
1889                 $this->assertNull( WikiPage::newFromID( 2147483647 ) );
1890         }
1891
1892         public function provideTestInsertProtectNullRevision() {
1893                 // phpcs:disable Generic.Files.LineLength
1894                 yield [
1895                         'goat-message-key',
1896                         [ 'edit' => 'sysop' ],
1897                         [ 'edit' => '20200101040404' ],
1898                         false,
1899                         'Goat Reason',
1900                         true,
1901                         '(goat-message-key: WikiPageDbTestBase::testInsertProtectNullRevision, UTSysop)(colon-separator)Goat Reason(word-separator)(parentheses: (protect-summary-desc: (restriction-edit), (protect-level-sysop), (protect-expiring: 04:04, 1 (january) 2020, 1 (january) 2020, 04:04)))'
1902                 ];
1903                 yield [
1904                         'goat-key',
1905                         [ 'edit' => 'sysop', 'move' => 'something' ],
1906                         [ 'edit' => '20200101040404', 'move' => '20210101050505' ],
1907                         false,
1908                         'Goat Goat',
1909                         true,
1910                         '(goat-key: WikiPageDbTestBase::testInsertProtectNullRevision, UTSysop)(colon-separator)Goat Goat(word-separator)(parentheses: (protect-summary-desc: (restriction-edit), (protect-level-sysop), (protect-expiring: 04:04, 1 (january) 2020, 1 (january) 2020, 04:04))(word-separator)(protect-summary-desc: (restriction-move), (protect-level-something), (protect-expiring: 05:05, 1 (january) 2021, 1 (january) 2021, 05:05)))'
1911                 ];
1912                 // phpcs:enable
1913         }
1914
1915         /**
1916          * @dataProvider provideTestInsertProtectNullRevision
1917          * @covers WikiPage::insertProtectNullRevision
1918          * @covers WikiPage::protectDescription
1919          *
1920          * @param string $revCommentMsg
1921          * @param array $limit
1922          * @param array $expiry
1923          * @param bool $cascade
1924          * @param string $reason
1925          * @param bool|null $user true if the test sysop should be used, or null
1926          * @param string $expectedComment
1927          */
1928         public function testInsertProtectNullRevision(
1929                 $revCommentMsg,
1930                 array $limit,
1931                 array $expiry,
1932                 $cascade,
1933                 $reason,
1934                 $user,
1935                 $expectedComment
1936         ) {
1937                 $this->setContentLang( 'qqx' );
1938
1939                 $page = $this->createPage( __METHOD__, 'Goat' );
1940
1941                 $user = $user === null ? $user : $this->getTestSysop()->getUser();
1942
1943                 $result = $page->insertProtectNullRevision(
1944                         $revCommentMsg,
1945                         $limit,
1946                         $expiry,
1947                         $cascade,
1948                         $reason,
1949                         $user
1950                 );
1951
1952                 $this->assertTrue( $result instanceof Revision );
1953                 $this->assertSame( $expectedComment, $result->getComment( Revision::RAW ) );
1954         }
1955
1956         /**
1957          * @covers WikiPage::updateRevisionOn
1958          */
1959         public function testUpdateRevisionOn_existingPage() {
1960                 $user = $this->getTestSysop()->getUser();
1961                 $page = $this->createPage( __METHOD__, 'StartText' );
1962
1963                 $revision = new Revision(
1964                         [
1965                                 'id' => 9989,
1966                                 'page' => $page->getId(),
1967                                 'title' => $page->getTitle(),
1968                                 'comment' => __METHOD__,
1969                                 'minor_edit' => true,
1970                                 'text' => __METHOD__ . '-text',
1971                                 'len' => strlen( __METHOD__ . '-text' ),
1972                                 'user' => $user->getId(),
1973                                 'user_text' => $user->getName(),
1974                                 'timestamp' => '20170707040404',
1975                                 'content_model' => CONTENT_MODEL_WIKITEXT,
1976                                 'content_format' => CONTENT_FORMAT_WIKITEXT,
1977                         ]
1978                 );
1979
1980                 $result = $page->updateRevisionOn( $this->db, $revision );
1981                 $this->assertTrue( $result );
1982                 $this->assertSame( 9989, $page->getLatest() );
1983                 $this->assertEquals( $revision, $page->getRevision() );
1984         }
1985
1986         /**
1987          * @covers WikiPage::updateRevisionOn
1988          */
1989         public function testUpdateRevisionOn_NonExistingPage() {
1990                 $user = $this->getTestSysop()->getUser();
1991                 $page = $this->createPage( __METHOD__, 'StartText' );
1992                 $page->doDeleteArticle( 'reason' );
1993
1994                 $revision = new Revision(
1995                         [
1996                                 'id' => 9989,
1997                                 'page' => $page->getId(),
1998                                 'title' => $page->getTitle(),
1999                                 'comment' => __METHOD__,
2000                                 'minor_edit' => true,
2001                                 'text' => __METHOD__ . '-text',
2002                                 'len' => strlen( __METHOD__ . '-text' ),
2003                                 'user' => $user->getId(),
2004                                 'user_text' => $user->getName(),
2005                                 'timestamp' => '20170707040404',
2006                                 'content_model' => CONTENT_MODEL_WIKITEXT,
2007                                 'content_format' => CONTENT_FORMAT_WIKITEXT,
2008                         ]
2009                 );
2010
2011                 $result = $page->updateRevisionOn( $this->db, $revision );
2012                 $this->assertFalse( $result );
2013         }
2014
2015         /**
2016          * @covers WikiPage::updateIfNewerOn
2017          */
2018         public function testUpdateIfNewerOn_olderRevision() {
2019                 $user = $this->getTestSysop()->getUser();
2020                 $page = $this->createPage( __METHOD__, 'StartText' );
2021                 $initialRevision = $page->getRevision();
2022
2023                 $olderTimeStamp = wfTimestamp(
2024                         TS_MW,
2025                         wfTimestamp( TS_UNIX, $initialRevision->getTimestamp() ) - 1
2026                 );
2027
2028                 $olderRevison = new Revision(
2029                         [
2030                                 'id' => 9989,
2031                                 'page' => $page->getId(),
2032                                 'title' => $page->getTitle(),
2033                                 'comment' => __METHOD__,
2034                                 'minor_edit' => true,
2035                                 'text' => __METHOD__ . '-text',
2036                                 'len' => strlen( __METHOD__ . '-text' ),
2037                                 'user' => $user->getId(),
2038                                 'user_text' => $user->getName(),
2039                                 'timestamp' => $olderTimeStamp,
2040                                 'content_model' => CONTENT_MODEL_WIKITEXT,
2041                                 'content_format' => CONTENT_FORMAT_WIKITEXT,
2042                         ]
2043                 );
2044
2045                 $result = $page->updateIfNewerOn( $this->db, $olderRevison );
2046                 $this->assertFalse( $result );
2047         }
2048
2049         /**
2050          * @covers WikiPage::updateIfNewerOn
2051          */
2052         public function testUpdateIfNewerOn_newerRevision() {
2053                 $user = $this->getTestSysop()->getUser();
2054                 $page = $this->createPage( __METHOD__, 'StartText' );
2055                 $initialRevision = $page->getRevision();
2056
2057                 $newerTimeStamp = wfTimestamp(
2058                         TS_MW,
2059                         wfTimestamp( TS_UNIX, $initialRevision->getTimestamp() ) + 1
2060                 );
2061
2062                 $newerRevision = new Revision(
2063                         [
2064                                 'id' => 9989,
2065                                 'page' => $page->getId(),
2066                                 'title' => $page->getTitle(),
2067                                 'comment' => __METHOD__,
2068                                 'minor_edit' => true,
2069                                 'text' => __METHOD__ . '-text',
2070                                 'len' => strlen( __METHOD__ . '-text' ),
2071                                 'user' => $user->getId(),
2072                                 'user_text' => $user->getName(),
2073                                 'timestamp' => $newerTimeStamp,
2074                                 'content_model' => CONTENT_MODEL_WIKITEXT,
2075                                 'content_format' => CONTENT_FORMAT_WIKITEXT,
2076                         ]
2077                 );
2078                 $result = $page->updateIfNewerOn( $this->db, $newerRevision );
2079                 $this->assertTrue( $result );
2080         }
2081
2082         /**
2083          * @covers WikiPage::insertOn
2084          */
2085         public function testInsertOn() {
2086                 $title = Title::newFromText( __METHOD__ );
2087                 $page = new WikiPage( $title );
2088
2089                 $startTimeStamp = wfTimestampNow();
2090                 $result = $page->insertOn( $this->db );
2091                 $endTimeStamp = wfTimestampNow();
2092
2093                 $this->assertInternalType( 'int', $result );
2094                 $this->assertTrue( $result > 0 );
2095
2096                 $condition = [ 'page_id' => $result ];
2097
2098                 // Check the default fields have been filled
2099                 $this->assertSelect(
2100                         'page',
2101                         [
2102                                 'page_namespace',
2103                                 'page_title',
2104                                 'page_restrictions',
2105                                 'page_is_redirect',
2106                                 'page_is_new',
2107                                 'page_latest',
2108                                 'page_len',
2109                         ],
2110                         $condition,
2111                         [ [
2112                                 '0',
2113                                 __METHOD__,
2114                                 '',
2115                                 '0',
2116                                 '1',
2117                                 '0',
2118                                 '0',
2119                         ] ]
2120                 );
2121
2122                 // Check the page_random field has been filled
2123                 $pageRandom = $this->db->selectField( 'page', 'page_random', $condition );
2124                 $this->assertTrue( (float)$pageRandom < 1 && (float)$pageRandom > 0 );
2125
2126                 // Assert the touched timestamp in the DB is roughly when we inserted the page
2127                 $pageTouched = $this->db->selectField( 'page', 'page_touched', $condition );
2128                 $this->assertTrue(
2129                         wfTimestamp( TS_UNIX, $startTimeStamp )
2130                         <= wfTimestamp( TS_UNIX, $pageTouched )
2131                 );
2132                 $this->assertTrue(
2133                         wfTimestamp( TS_UNIX, $endTimeStamp )
2134                         >= wfTimestamp( TS_UNIX, $pageTouched )
2135                 );
2136
2137                 // Try inserting the same page again and checking the result is false (no change)
2138                 $result = $page->insertOn( $this->db );
2139                 $this->assertFalse( $result );
2140         }
2141
2142         /**
2143          * @covers WikiPage::insertOn
2144          */
2145         public function testInsertOn_idSpecified() {
2146                 $title = Title::newFromText( __METHOD__ );
2147                 $page = new WikiPage( $title );
2148                 $id = 1478952189;
2149
2150                 $result = $page->insertOn( $this->db, $id );
2151
2152                 $this->assertSame( $id, $result );
2153
2154                 $condition = [ 'page_id' => $result ];
2155
2156                 // Check there is actually a row in the db
2157                 $this->assertSelect(
2158                         'page',
2159                         [ 'page_title' ],
2160                         $condition,
2161                         [ [ __METHOD__ ] ]
2162                 );
2163         }
2164
2165         public function provideTestDoUpdateRestrictions_setBasicRestrictions() {
2166                 // Note: Once the current dates passes the date in these tests they will fail.
2167                 yield 'move something' => [
2168                         true,
2169                         [ 'move' => 'something' ],
2170                         [],
2171                         [ 'edit' => [], 'move' => [ 'something' ] ],
2172                         [],
2173                 ];
2174                 yield 'move something, edit blank' => [
2175                         true,
2176                         [ 'move' => 'something', 'edit' => '' ],
2177                         [],
2178                         [ 'edit' => [], 'move' => [ 'something' ] ],
2179                         [],
2180                 ];
2181                 yield 'edit sysop, with expiry' => [
2182                         true,
2183                         [ 'edit' => 'sysop' ],
2184                         [ 'edit' => '21330101020202' ],
2185                         [ 'edit' => [ 'sysop' ], 'move' => [] ],
2186                         [ 'edit' => '21330101020202' ],
2187                 ];
2188                 yield 'move and edit, move with expiry' => [
2189                         true,
2190                         [ 'move' => 'something', 'edit' => 'another' ],
2191                         [ 'move' => '22220202010101' ],
2192                         [ 'edit' => [ 'another' ], 'move' => [ 'something' ] ],
2193                         [ 'move' => '22220202010101' ],
2194                 ];
2195                 yield 'move and edit, edit with infinity expiry' => [
2196                         true,
2197                         [ 'move' => 'something', 'edit' => 'another' ],
2198                         [ 'edit' => 'infinity' ],
2199                         [ 'edit' => [ 'another' ], 'move' => [ 'something' ] ],
2200                         [ 'edit' => 'infinity' ],
2201                 ];
2202                 yield 'non existing, create something' => [
2203                         false,
2204                         [ 'create' => 'something' ],
2205                         [],
2206                         [ 'create' => [ 'something' ] ],
2207                         [],
2208                 ];
2209                 yield 'non existing, create something with expiry' => [
2210                         false,
2211                         [ 'create' => 'something' ],
2212                         [ 'create' => '23451212112233' ],
2213                         [ 'create' => [ 'something' ] ],
2214                         [ 'create' => '23451212112233' ],
2215                 ];
2216         }
2217
2218         /**
2219          * @dataProvider provideTestDoUpdateRestrictions_setBasicRestrictions
2220          * @covers WikiPage::doUpdateRestrictions
2221          */
2222         public function testDoUpdateRestrictions_setBasicRestrictions(
2223                 $pageExists,
2224                 array $limit,
2225                 array $expiry,
2226                 array $expectedRestrictions,
2227                 array $expectedRestrictionExpiries
2228         ) {
2229                 if ( $pageExists ) {
2230                         $page = $this->createPage( __METHOD__, 'ABC' );
2231                 } else {
2232                         $page = new WikiPage( Title::newFromText( __METHOD__ . '-nonexist' ) );
2233                 }
2234                 $user = $this->getTestSysop()->getUser();
2235                 $cascade = false;
2236
2237                 $status = $page->doUpdateRestrictions( $limit, $expiry, $cascade, 'aReason', $user, [] );
2238
2239                 $logId = $status->getValue();
2240                 $allRestrictions = $page->getTitle()->getAllRestrictions();
2241
2242                 $this->assertTrue( $status->isGood() );
2243                 $this->assertInternalType( 'int', $logId );
2244                 $this->assertSame( $expectedRestrictions, $allRestrictions );
2245                 foreach ( $expectedRestrictionExpiries as $key => $value ) {
2246                         $this->assertSame( $value, $page->getTitle()->getRestrictionExpiry( $key ) );
2247                 }
2248
2249                 // Make sure the log entry looks good
2250                 // log_params is not checked here
2251                 $actorQuery = ActorMigration::newMigration()->getJoin( 'log_user' );
2252                 $this->assertSelect(
2253                         [ 'logging' ] + $actorQuery['tables'],
2254                         [
2255                                 'log_comment',
2256                                 'log_user' => $actorQuery['fields']['log_user'],
2257                                 'log_user_text' => $actorQuery['fields']['log_user_text'],
2258                                 'log_namespace',
2259                                 'log_title',
2260                         ],
2261                         [ 'log_id' => $logId ],
2262                         [ [
2263                                 'aReason',
2264                                 (string)$user->getId(),
2265                                 $user->getName(),
2266                                 (string)$page->getTitle()->getNamespace(),
2267                                 $page->getTitle()->getDBkey(),
2268                         ] ],
2269                         [],
2270                         $actorQuery['joins']
2271                 );
2272         }
2273
2274         /**
2275          * @covers WikiPage::doUpdateRestrictions
2276          */
2277         public function testDoUpdateRestrictions_failsOnReadOnly() {
2278                 $page = $this->createPage( __METHOD__, 'ABC' );
2279                 $user = $this->getTestSysop()->getUser();
2280                 $cascade = false;
2281
2282                 // Set read only
2283                 $readOnly = $this->getMockBuilder( ReadOnlyMode::class )
2284                         ->disableOriginalConstructor()
2285                         ->setMethods( [ 'isReadOnly', 'getReason' ] )
2286                         ->getMock();
2287                 $readOnly->expects( $this->once() )
2288                         ->method( 'isReadOnly' )
2289                         ->will( $this->returnValue( true ) );
2290                 $readOnly->expects( $this->once() )
2291                         ->method( 'getReason' )
2292                         ->will( $this->returnValue( 'Some Read Only Reason' ) );
2293                 $this->setService( 'ReadOnlyMode', $readOnly );
2294
2295                 $status = $page->doUpdateRestrictions( [], [], $cascade, 'aReason', $user, [] );
2296                 $this->assertFalse( $status->isOK() );
2297                 $this->assertSame( 'readonlytext', $status->getMessage()->getKey() );
2298         }
2299
2300         /**
2301          * @covers WikiPage::doUpdateRestrictions
2302          */
2303         public function testDoUpdateRestrictions_returnsGoodIfNothingChanged() {
2304                 $page = $this->createPage( __METHOD__, 'ABC' );
2305                 $user = $this->getTestSysop()->getUser();
2306                 $cascade = false;
2307                 $limit = [ 'edit' => 'sysop' ];
2308
2309                 $status = $page->doUpdateRestrictions(
2310                         $limit,
2311                         [],
2312                         $cascade,
2313                         'aReason',
2314                         $user,
2315                         []
2316                 );
2317
2318                 // The first entry should have a logId as it did something
2319                 $this->assertTrue( $status->isGood() );
2320                 $this->assertInternalType( 'int', $status->getValue() );
2321
2322                 $status = $page->doUpdateRestrictions(
2323                         $limit,
2324                         [],
2325                         $cascade,
2326                         'aReason',
2327                         $user,
2328                         []
2329                 );
2330
2331                 // The second entry should not have a logId as nothing changed
2332                 $this->assertTrue( $status->isGood() );
2333                 $this->assertNull( $status->getValue() );
2334         }
2335
2336         /**
2337          * @covers WikiPage::doUpdateRestrictions
2338          */
2339         public function testDoUpdateRestrictions_logEntryTypeAndAction() {
2340                 $page = $this->createPage( __METHOD__, 'ABC' );
2341                 $user = $this->getTestSysop()->getUser();
2342                 $cascade = false;
2343
2344                 // Protect the page
2345                 $status = $page->doUpdateRestrictions(
2346                         [ 'edit' => 'sysop' ],
2347                         [],
2348                         $cascade,
2349                         'aReason',
2350                         $user,
2351                         []
2352                 );
2353                 $this->assertTrue( $status->isGood() );
2354                 $this->assertInternalType( 'int', $status->getValue() );
2355                 $this->assertSelect(
2356                         'logging',
2357                         [ 'log_type', 'log_action' ],
2358                         [ 'log_id' => $status->getValue() ],
2359                         [ [ 'protect', 'protect' ] ]
2360                 );
2361
2362                 // Modify the protection
2363                 $status = $page->doUpdateRestrictions(
2364                         [ 'edit' => 'somethingElse' ],
2365                         [],
2366                         $cascade,
2367                         'aReason',
2368                         $user,
2369                         []
2370                 );
2371                 $this->assertTrue( $status->isGood() );
2372                 $this->assertInternalType( 'int', $status->getValue() );
2373                 $this->assertSelect(
2374                         'logging',
2375                         [ 'log_type', 'log_action' ],
2376                         [ 'log_id' => $status->getValue() ],
2377                         [ [ 'protect', 'modify' ] ]
2378                 );
2379
2380                 // Remove the protection
2381                 $status = $page->doUpdateRestrictions(
2382                         [],
2383                         [],
2384                         $cascade,
2385                         'aReason',
2386                         $user,
2387                         []
2388                 );
2389                 $this->assertTrue( $status->isGood() );
2390                 $this->assertInternalType( 'int', $status->getValue() );
2391                 $this->assertSelect(
2392                         'logging',
2393                         [ 'log_type', 'log_action' ],
2394                         [ 'log_id' => $status->getValue() ],
2395                         [ [ 'protect', 'unprotect' ] ]
2396                 );
2397         }
2398
2399         /**
2400          * @covers WikiPage::newPageUpdater
2401          * @covers WikiPage::getDerivedDataUpdater
2402          */
2403         public function testNewPageUpdater() {
2404                 $user = $this->getTestUser()->getUser();
2405                 $page = $this->newPage( __METHOD__, __METHOD__ );
2406
2407                 /** @var Content $content */
2408                 $content = $this->getMockBuilder( WikitextContent::class )
2409                         ->setConstructorArgs( [ 'Hello World' ] )
2410                         ->setMethods( [ 'getParserOutput' ] )
2411                         ->getMock();
2412                 $content->expects( $this->once() )
2413                         ->method( 'getParserOutput' )
2414                         ->willReturn( new ParserOutput( 'HTML' ) );
2415
2416                 $preparedEditBefore = $page->prepareContentForEdit( $content, null, $user );
2417
2418                 // provide context, so the cache can be kept in place
2419                 $slotsUpdate = new revisionSlotsUpdate();
2420                 $slotsUpdate->modifyContent( SlotRecord::MAIN, $content );
2421
2422                 $updater = $page->newPageUpdater( $user, $slotsUpdate );
2423                 $updater->setContent( SlotRecord::MAIN, $content );
2424                 $revision = $updater->saveRevision(
2425                         CommentStoreComment::newUnsavedComment( 'test' ),
2426                         EDIT_NEW
2427                 );
2428
2429                 $preparedEditAfter = $page->prepareContentForEdit( $content, $revision, $user );
2430
2431                 $this->assertSame( $revision->getId(), $page->getLatest() );
2432
2433                 // Parsed output must remain cached throughout.
2434                 $this->assertSame( $preparedEditBefore->output, $preparedEditAfter->output );
2435         }
2436
2437         /**
2438          * @covers WikiPage::newPageUpdater
2439          * @covers WikiPage::getDerivedDataUpdater
2440          */
2441         public function testGetDerivedDataUpdater() {
2442                 $admin = $this->getTestSysop()->getUser();
2443
2444                 /** @var object $page */
2445                 $page = $this->createPage( __METHOD__, __METHOD__ );
2446                 $page = TestingAccessWrapper::newFromObject( $page );
2447
2448                 $revision = $page->getRevision()->getRevisionRecord();
2449                 $user = $revision->getUser();
2450
2451                 $slotsUpdate = new RevisionSlotsUpdate();
2452                 $slotsUpdate->modifyContent( SlotRecord::MAIN, new WikitextContent( 'Hello World' ) );
2453
2454                 // get a virgin updater
2455                 $updater1 = $page->getDerivedDataUpdater( $user );
2456                 $this->assertFalse( $updater1->isUpdatePrepared() );
2457
2458                 $updater1->prepareUpdate( $revision );
2459
2460                 // Re-use updater with same revision or content, even if base changed
2461                 $this->assertSame( $updater1, $page->getDerivedDataUpdater( $user, $revision ) );
2462
2463                 $slotsUpdate = RevisionSlotsUpdate::newFromContent(
2464                         [ SlotRecord::MAIN => $revision->getContent( SlotRecord::MAIN ) ]
2465                 );
2466                 $this->assertSame( $updater1, $page->getDerivedDataUpdater( $user, null, $slotsUpdate ) );
2467
2468                 // Don't re-use for edit if base revision ID changed
2469                 $this->assertNotSame(
2470                         $updater1,
2471                         $page->getDerivedDataUpdater( $user, null, $slotsUpdate, true )
2472                 );
2473
2474                 // Don't re-use with different user
2475                 $updater2a = $page->getDerivedDataUpdater( $admin, null, $slotsUpdate );
2476                 $updater2a->prepareContent( $admin, $slotsUpdate, false );
2477
2478                 $updater2b = $page->getDerivedDataUpdater( $user, null, $slotsUpdate );
2479                 $updater2b->prepareContent( $user, $slotsUpdate, false );
2480                 $this->assertNotSame( $updater2a, $updater2b );
2481
2482                 // Don't re-use with different content
2483                 $updater3 = $page->getDerivedDataUpdater( $admin, null, $slotsUpdate );
2484                 $updater3->prepareUpdate( $revision );
2485                 $this->assertNotSame( $updater2b, $updater3 );
2486
2487                 // Don't re-use if no context given
2488                 $updater4 = $page->getDerivedDataUpdater( $admin );
2489                 $updater4->prepareUpdate( $revision );
2490                 $this->assertNotSame( $updater3, $updater4 );
2491
2492                 // Don't re-use if AGAIN no context given
2493                 $updater5 = $page->getDerivedDataUpdater( $admin );
2494                 $this->assertNotSame( $updater4, $updater5 );
2495
2496                 // Don't re-use cached "virgin" unprepared updater
2497                 $updater6 = $page->getDerivedDataUpdater( $admin, $revision );
2498                 $this->assertNotSame( $updater5, $updater6 );
2499         }
2500
2501         protected function assertPreparedEditEquals(
2502                 PreparedEdit $edit, PreparedEdit $edit2, $message = ''
2503         ) {
2504                 // suppress differences caused by a clock tick between generating the two PreparedEdits
2505                 if ( abs( $edit->timestamp - $edit2->timestamp ) < 3 ) {
2506                         $edit2 = clone $edit2;
2507                         $edit2->timestamp = $edit->timestamp;
2508                 }
2509                 $this->assertEquals( $edit, $edit2, $message );
2510         }
2511
2512         protected function assertPreparedEditNotEquals(
2513                 PreparedEdit $edit, PreparedEdit $edit2, $message = ''
2514         ) {
2515                 if ( abs( $edit->timestamp - $edit2->timestamp ) < 3 ) {
2516                         $edit2 = clone $edit2;
2517                         $edit2->timestamp = $edit->timestamp;
2518                 }
2519                 $this->assertNotEquals( $edit, $edit2, $message );
2520         }
2521
2522 }