WikiPageTest.php

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<?php
 
class WikiPageTest extends MediaWikiLangTestCase {
 
    protected $pages_to_delete;
 
    function __construct( $name = null, array $data = [], $dataName = '' ) {
        parent::__construct( $name, $data, $dataName );
 
        $this->tablesUsed = array_merge(
            $this->tablesUsed,
            [ 'page',
                'revision',
                'text',
 
                'recentchanges',
                'logging',
 
                'page_props',
                'pagelinks',
                'categorylinks',
                'langlinks',
                'externallinks',
                'imagelinks',
                'templatelinks',
                'iwlinks' ] );
    }
 
    protected function setUp() {
        parent::setUp();
        $this->pages_to_delete = [];
 
        LinkCache::singleton()->clear(); # avoid cached redirect status, etc
    }
 
    protected function tearDown() {
        foreach ( $this->pages_to_delete as $p ) {
            /* @var $p WikiPage */
 
            try {
                if ( $p->exists() ) {
                    $p->doDeleteArticle( "testing done." );
                }
            } catch ( MWException $ex ) {
                // fail silently
            }
        }
        parent::tearDown();
    }
 
    protected function newPage( $title, $model = null ) {
        if ( is_string( $title ) ) {
            $ns = $this->getDefaultWikitextNS();
            $title = Title::newFromText( $title, $ns );
        }
 
        $p = new WikiPage( $title );
 
        $this->pages_to_delete[] = $p;
 
        return $p;
    }
 
    protected function createPage( $page, $text, $model = null ) {
        if ( is_string( $page ) || $page instanceof Title ) {
            $page = $this->newPage( $page, $model );
        }
 
        $content = ContentHandler::makeContent( $text, $page->getTitle(), $model );
        $page->doEditContent( $content, "testing", EDIT_NEW );
 
        return $page;
    }
 
    public function testDoEditContent() {
        $page = $this->newPage( "WikiPageTest_testDoEditContent" );
        $title = $page->getTitle();
 
        $content = ContentHandler::makeContent(
            "[[Lorem ipsum]] dolor sit amet, consetetur sadipscing elitr, sed diam "
                . " nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat.",
            $title,
            CONTENT_MODEL_WIKITEXT
        );
 
        $page->doEditContent( $content, "[[testing]] 1" );
 
        $this->assertTrue( $title->getArticleID() > 0, "Title object should have new page id" );
        $this->assertTrue( $page->getId() > 0, "WikiPage should have new page id" );
        $this->assertTrue( $title->exists(), "Title object should indicate that the page now exists" );
        $this->assertTrue( $page->exists(), "WikiPage object should indicate that the page now exists" );
 
        $id = $page->getId();
 
        # ------------------------
        $dbr = wfGetDB( DB_SLAVE );
        $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
        $n = $res->numRows();
        $res->free();
 
        $this->assertEquals( 1, $n, 'pagelinks should contain one link from the page' );
 
        # ------------------------
        $page = new WikiPage( $title );
 
        $retrieved = $page->getContent();
        $this->assertTrue( $content->equals( $retrieved ), 'retrieved content doesn\'t equal original' );
 
        # ------------------------
        $content = ContentHandler::makeContent(
            "At vero eos et accusam et justo duo [[dolores]] et ea rebum. "
                . "Stet clita kasd [[gubergren]], no sea takimata sanctus est.",
            $title,
            CONTENT_MODEL_WIKITEXT
        );
 
        $page->doEditContent( $content, "testing 2" );
 
        # ------------------------
        $page = new WikiPage( $title );
 
        $retrieved = $page->getContent();
        $this->assertTrue( $content->equals( $retrieved ), 'retrieved content doesn\'t equal original' );
 
        # ------------------------
        $dbr = wfGetDB( DB_SLAVE );
        $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
        $n = $res->numRows();
        $res->free();
 
        $this->assertEquals( 2, $n, 'pagelinks should contain two links from the page' );
    }
 
    public function testDoDeleteArticle() {
        $page = $this->createPage(
            "WikiPageTest_testDoDeleteArticle",
            "[[original text]] foo",
            CONTENT_MODEL_WIKITEXT
        );
        $id = $page->getId();
 
        $page->doDeleteArticle( "testing deletion" );
 
        $this->assertFalse(
            $page->getTitle()->getArticleID() > 0,
            "Title object should now have page id 0"
        );
        $this->assertFalse( $page->getId() > 0, "WikiPage should now have page id 0" );
        $this->assertFalse(
            $page->exists(),
            "WikiPage::exists should return false after page was deleted"
        );
        $this->assertNull(
            $page->getContent(),
            "WikiPage::getContent should return null after page was deleted"
        );
 
        $t = Title::newFromText( $page->getTitle()->getPrefixedText() );
        $this->assertFalse(
            $t->exists(),
            "Title::exists should return false after page was deleted"
        );
 
        // Run the job queue
        JobQueueGroup::destroySingletons();
        $jobs = new RunJobs;
        $jobs->loadParamsAndArgs( null, [ 'quiet' => true ], null );
        $jobs->execute();
 
        # ------------------------
        $dbr = wfGetDB( DB_SLAVE );
        $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
        $n = $res->numRows();
        $res->free();
 
        $this->assertEquals( 0, $n, 'pagelinks should contain no more links from the page' );
    }
 
    public function testDoDeleteUpdates() {
        $page = $this->createPage(
            "WikiPageTest_testDoDeleteArticle",
            "[[original text]] foo",
            CONTENT_MODEL_WIKITEXT
        );
        $id = $page->getId();
 
        // Similar to MovePage logic
        wfGetDB( DB_MASTER )->delete( 'page', [ 'page_id' => $id ], __METHOD__ );
        $page->doDeleteUpdates( $id );
 
        // Run the job queue
        JobQueueGroup::destroySingletons();
        $jobs = new RunJobs;
        $jobs->loadParamsAndArgs( null, [ 'quiet' => true ], null );
        $jobs->execute();
 
        # ------------------------
        $dbr = wfGetDB( DB_SLAVE );
        $res = $dbr->select( 'pagelinks', '*', [ 'pl_from' => $id ] );
        $n = $res->numRows();
        $res->free();
 
        $this->assertEquals( 0, $n, 'pagelinks should contain no more links from the page' );
    }
 
    public function testGetRevision() {
        $page = $this->newPage( "WikiPageTest_testGetRevision" );
 
        $rev = $page->getRevision();
        $this->assertNull( $rev );
 
        # -----------------
        $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 
        $rev = $page->getRevision();
 
        $this->assertEquals( $page->getLatest(), $rev->getId() );
        $this->assertEquals( "some text", $rev->getContent()->getNativeData() );
    }
 
    public function testGetContent() {
        $page = $this->newPage( "WikiPageTest_testGetContent" );
 
        $content = $page->getContent();
        $this->assertNull( $content );
 
        # -----------------
        $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
 
        $content = $page->getContent();
        $this->assertEquals( "some text", $content->getNativeData() );
    }
 
    public function testGetContentModel() {
        global $wgContentHandlerUseDB;
 
        if ( !$wgContentHandlerUseDB ) {
            $this->markTestSkipped( '$wgContentHandlerUseDB is disabled' );
        }
 
        $page = $this->createPage(
            "WikiPageTest_testGetContentModel",
            "some text",
            CONTENT_MODEL_JAVASCRIPT
        );
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $page->getContentModel() );
    }
 
    public function testGetContentHandler() {
        global $wgContentHandlerUseDB;
 
        if ( !$wgContentHandlerUseDB ) {
            $this->markTestSkipped( '$wgContentHandlerUseDB is disabled' );
        }
 
        $page = $this->createPage(
            "WikiPageTest_testGetContentHandler",
            "some text",
            CONTENT_MODEL_JAVASCRIPT
        );
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertEquals( 'JavaScriptContentHandler', get_class( $page->getContentHandler() ) );
    }
 
    public function testExists() {
        $page = $this->newPage( "WikiPageTest_testExists" );
        $this->assertFalse( $page->exists() );
 
        # -----------------
        $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
        $this->assertTrue( $page->exists() );
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertTrue( $page->exists() );
 
        # -----------------
        $page->doDeleteArticle( "done testing" );
        $this->assertFalse( $page->exists() );
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertFalse( $page->exists() );
    }
 
    public static function provideHasViewableContent() {
        return [
            [ 'WikiPageTest_testHasViewableContent', false, true ],
            [ 'Special:WikiPageTest_testHasViewableContent', false ],
            [ 'MediaWiki:WikiPageTest_testHasViewableContent', false ],
            [ 'Special:Userlogin', true ],
            [ 'MediaWiki:help', true ],
        ];
    }
 
    public function testHasViewableContent( $title, $viewable, $create = false ) {
        $page = $this->newPage( $title );
        $this->assertEquals( $viewable, $page->hasViewableContent() );
 
        if ( $create ) {
            $this->createPage( $page, "some text", CONTENT_MODEL_WIKITEXT );
            $this->assertTrue( $page->hasViewableContent() );
 
            $page = new WikiPage( $page->getTitle() );
            $this->assertTrue( $page->hasViewableContent() );
        }
    }
 
    public static function provideGetRedirectTarget() {
        return [
            [ 'WikiPageTest_testGetRedirectTarget_1', CONTENT_MODEL_WIKITEXT, "hello world", null ],
            [
                'WikiPageTest_testGetRedirectTarget_2',
                CONTENT_MODEL_WIKITEXT,
                "#REDIRECT [[hello world]]",
                "Hello world"
            ],
        ];
    }
 
    public function testGetRedirectTarget( $title, $model, $text, $target ) {
        $this->setMwGlobals( [
            'wgCapitalLinks' => true,
        ] );
 
        $page = $this->createPage( $title, $text, $model );
 
        # sanity check, because this test seems to fail for no reason for some people.
        $c = $page->getContent();
        $this->assertEquals( 'WikitextContent', get_class( $c ) );
 
        # now, test the actual redirect
        $t = $page->getRedirectTarget();
        $this->assertEquals( $target, is_null( $t ) ? null : $t->getPrefixedText() );
    }
 
    public function testIsRedirect( $title, $model, $text, $target ) {
        $page = $this->createPage( $title, $text, $model );
        $this->assertEquals( !is_null( $target ), $page->isRedirect() );
    }
 
    public static function provideIsCountable() {
        return [
 
            // any
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                '',
                'any',
                true
            ],
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo',
                'any',
                true
            ],
 
            // comma
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo',
                'comma',
                false
            ],
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo, bar',
                'comma',
                true
            ],
 
            // link
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo',
                'link',
                false
            ],
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo [[bar]]',
                'link',
                true
            ],
 
            // redirects
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                '#REDIRECT [[bar]]',
                'any',
                false
            ],
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                '#REDIRECT [[bar]]',
                'comma',
                false
            ],
            [ 'WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                '#REDIRECT [[bar]]',
                'link',
                false
            ],
 
            // not a content namespace
            [ 'Talk:WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo',
                'any',
                false
            ],
            [ 'Talk:WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo, bar',
                'comma',
                false
            ],
            [ 'Talk:WikiPageTest_testIsCountable',
                CONTENT_MODEL_WIKITEXT,
                'Foo [[bar]]',
                'link',
                false
            ],
 
            // not a content namespace, different model
            [ 'MediaWiki:WikiPageTest_testIsCountable.js',
                null,
                'Foo',
                'any',
                false
            ],
            [ 'MediaWiki:WikiPageTest_testIsCountable.js',
                null,
                'Foo, bar',
                'comma',
                false
            ],
            [ 'MediaWiki:WikiPageTest_testIsCountable.js',
                null,
                'Foo [[bar]]',
                'link',
                false
            ],
        ];
    }
 
    public function testIsCountable( $title, $model, $text, $mode, $expected ) {
        global $wgContentHandlerUseDB;
 
        $this->setMwGlobals( 'wgArticleCountMethod', $mode );
 
        $title = Title::newFromText( $title );
 
        if ( !$wgContentHandlerUseDB
            && $model
            && ContentHandler::getDefaultModelFor( $title ) != $model
        ) {
            $this->markTestSkipped( "Can not use non-default content model $model for "
                . $title->getPrefixedDBkey() . " with \$wgContentHandlerUseDB disabled." );
        }
 
        $page = $this->createPage( $title, $text, $model );
 
        $editInfo = $page->prepareContentForEdit( $page->getContent() );
 
        $v = $page->isCountable();
        $w = $page->isCountable( $editInfo );
 
        $this->assertEquals(
            $expected,
            $v,
            "isCountable( null ) returned unexpected value " . var_export( $v, true )
                . " instead of " . var_export( $expected, true )
            . " in mode `$mode` for text \"$text\""
        );
 
        $this->assertEquals(
            $expected,
            $w,
            "isCountable( \$editInfo ) returned unexpected value " . var_export( $v, true )
                . " instead of " . var_export( $expected, true )
            . " in mode `$mode` for text \"$text\""
        );
    }
 
    public static function provideGetParserOutput() {
        return [
            [ CONTENT_MODEL_WIKITEXT, "hello ''world''\n", "<p>hello <i>world</i></p>" ],
            // @todo more...?
        ];
    }
 
    public function testGetParserOutput( $model, $text, $expectedHtml ) {
        $page = $this->createPage( 'WikiPageTest_testGetParserOutput', $text, $model );
 
        $opt = $page->makeParserOptions( 'canonical' );
        $po = $page->getParserOutput( $opt );
        $text = $po->getText();
 
        $text = trim( preg_replace( '/<!--.*?-->/sm', '', $text ) ); # strip injected comments
        $text = preg_replace( '!\s*(</p>)!sm', '\1', $text ); # don't let tidy confuse us
 
        $this->assertEquals( $expectedHtml, $text );
 
        return $po;
    }
 
    public function testGetParserOutput_nonexisting() {
        static $count = 0;
        $count++;
 
        $page = new WikiPage( new Title( "WikiPageTest_testGetParserOutput_nonexisting_$count" ) );
 
        $opt = new ParserOptions();
        $po = $page->getParserOutput( $opt );
 
        $this->assertFalse( $po, "getParserOutput() shall return false for non-existing pages." );
    }
 
    public function testGetParserOutput_badrev() {
        $page = $this->createPage( 'WikiPageTest_testGetParserOutput', "dummy", CONTENT_MODEL_WIKITEXT );
 
        $opt = new ParserOptions();
        $po = $page->getParserOutput( $opt, $page->getLatest() + 1234 );
 
        // @todo would be neat to also test deleted revision
 
        $this->assertFalse( $po, "getParserOutput() shall return false for non-existing revisions." );
    }
 
    public static $sections =
 
        "Intro
 
== stuff ==
hello world
 
== test ==
just a test
 
== foo ==
more stuff
";
 
    public function dataReplaceSection() {
        // NOTE: assume the Help namespace to contain wikitext
        return [
            [ 'Help:WikiPageTest_testReplaceSection',
                CONTENT_MODEL_WIKITEXT,
                WikiPageTest::$sections,
                "0",
                "No more",
                null,
                trim( preg_replace( '/^Intro/sm', 'No more', WikiPageTest::$sections ) )
            ],
            [ 'Help:WikiPageTest_testReplaceSection',
                CONTENT_MODEL_WIKITEXT,
                WikiPageTest::$sections,
                "",
                "No more",
                null,
                "No more"
            ],
            [ 'Help:WikiPageTest_testReplaceSection',
                CONTENT_MODEL_WIKITEXT,
                WikiPageTest::$sections,
                "2",
                "== TEST ==\nmore fun",
                null,
                trim( preg_replace( '/^== test ==.*== foo ==/sm',
                    "== TEST ==\nmore fun\n\n== foo ==",
                    WikiPageTest::$sections ) )
            ],
            [ 'Help:WikiPageTest_testReplaceSection',
                CONTENT_MODEL_WIKITEXT,
                WikiPageTest::$sections,
                "8",
                "No more",
                null,
                trim( WikiPageTest::$sections )
            ],
            [ 'Help:WikiPageTest_testReplaceSection',
                CONTENT_MODEL_WIKITEXT,
                WikiPageTest::$sections,
                "new",
                "No more",
                "New",
                trim( WikiPageTest::$sections ) . "\n\n== New ==\n\nNo more"
            ],
        ];
    }
 
    public function testReplaceSectionContent( $title, $model, $text, $section,
        $with, $sectionTitle, $expected
    ) {
        $page = $this->createPage( $title, $text, $model );
 
        $content = ContentHandler::makeContent( $with, $page->getTitle(), $page->getContentModel() );
        $c = $page->replaceSectionContent( $section, $content, $sectionTitle );
 
        $this->assertEquals( $expected, is_null( $c ) ? null : trim( $c->getNativeData() ) );
    }
 
    public function testReplaceSectionAtRev( $title, $model, $text, $section,
        $with, $sectionTitle, $expected
    ) {
        $page = $this->createPage( $title, $text, $model );
        $baseRevId = $page->getLatest();
 
        $content = ContentHandler::makeContent( $with, $page->getTitle(), $page->getContentModel() );
        $c = $page->replaceSectionAtRev( $section, $content, $sectionTitle, $baseRevId );
 
        $this->assertEquals( $expected, is_null( $c ) ? null : trim( $c->getNativeData() ) );
    }
 
    /* @todo FIXME: fix this!
    public function testGetUndoText() {
    $this->markTestSkippedIfNoDiff3();
 
    $text = "one";
    $page = $this->createPage( "WikiPageTest_testGetUndoText", $text );
    $rev1 = $page->getRevision();
 
    $text .= "\n\ntwo";
    $page->doEditContent(
        ContentHandler::makeContent( $text, $page->getTitle() ),
        "adding section two"
    );
    $rev2 = $page->getRevision();
 
    $text .= "\n\nthree";
    $page->doEditContent(
        ContentHandler::makeContent( $text, $page->getTitle() ),
        "adding section three"
    );
    $rev3 = $page->getRevision();
 
    $text .= "\n\nfour";
    $page->doEditContent(
        ContentHandler::makeContent( $text, $page->getTitle() ),
        "adding section four"
    );
    $rev4 = $page->getRevision();
 
    $text .= "\n\nfive";
    $page->doEditContent(
        ContentHandler::makeContent( $text, $page->getTitle() ),
        "adding section five"
    );
    $rev5 = $page->getRevision();
 
    $text .= "\n\nsix";
    $page->doEditContent(
        ContentHandler::makeContent( $text, $page->getTitle() ),
        "adding section six"
    );
    $rev6 = $page->getRevision();
 
    $undo6 = $page->getUndoText( $rev6 );
    if ( $undo6 === false ) $this->fail( "getUndoText failed for rev6" );
    $this->assertEquals( "one\n\ntwo\n\nthree\n\nfour\n\nfive", $undo6 );
 
    $undo3 = $page->getUndoText( $rev4, $rev2 );
    if ( $undo3 === false ) $this->fail( "getUndoText failed for rev4..rev2" );
    $this->assertEquals( "one\n\ntwo\n\nfive", $undo3 );
 
    $undo2 = $page->getUndoText( $rev2 );
    if ( $undo2 === false ) $this->fail( "getUndoText failed for rev2" );
    $this->assertEquals( "one\n\nfive", $undo2 );
    }
     */
 
    public function testGetOldestRevision() {
        $page = $this->newPage( "WikiPageTest_testGetOldestRevision" );
        $page->doEditContent(
            new WikitextContent( 'one' ),
            "first edit",
            EDIT_NEW
        );
        $rev1 = $page->getRevision();
 
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent(
            new WikitextContent( 'two' ),
            "second edit",
            EDIT_UPDATE
        );
 
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent(
            new WikitextContent( 'three' ),
            "third edit",
            EDIT_UPDATE
        );
 
        // sanity check
        $this->assertNotEquals(
            $rev1->getId(),
            $page->getRevision()->getId(),
            '$page->getRevision()->getId()'
        );
 
        // actual test
        $this->assertEquals(
            $rev1->getId(),
            $page->getOldestRevision()->getId(),
            '$page->getOldestRevision()->getId()'
        );
    }
 
    public function broken_testDoRollback() {
        $admin = new User();
        $admin->setName( "Admin" );
 
        $text = "one";
        $page = $this->newPage( "WikiPageTest_testDoRollback" );
        $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
            "section one", EDIT_NEW, false, $admin );
 
        $user1 = new User();
        $user1->setName( "127.0.1.11" );
        $text .= "\n\ntwo";
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
            "adding section two", 0, false, $user1 );
 
        $user2 = new User();
        $user2->setName( "127.0.2.13" );
        $text .= "\n\nthree";
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent( ContentHandler::makeContent( $text, $page->getTitle() ),
            "adding section three", 0, false, $user2 );
 
        # we are having issues with doRollback spuriously failing. Apparently
        # the last revision somehow goes missing or not committed under some
        # circumstances. So, make sure the last revision has the right user name.
        $dbr = wfGetDB( DB_SLAVE );
        $this->assertEquals( 3, Revision::countByPageId( $dbr, $page->getId() ) );
 
        $page = new WikiPage( $page->getTitle() );
        $rev3 = $page->getRevision();
        $this->assertEquals( '127.0.2.13', $rev3->getUserText() );
 
        $rev2 = $rev3->getPrevious();
        $this->assertEquals( '127.0.1.11', $rev2->getUserText() );
 
        $rev1 = $rev2->getPrevious();
        $this->assertEquals( 'Admin', $rev1->getUserText() );
 
        # now, try the actual rollback
        $admin->addToDatabase();
        $admin->addGroup( "sysop" ); # XXX: make the test user a sysop...
        $token = $admin->getEditToken(
            [ $page->getTitle()->getPrefixedText(), $user2->getName() ],
            null
        );
        $errors = $page->doRollback(
            $user2->getName(),
            "testing revert",
            $token,
            false,
            $details,
            $admin
        );
 
        if ( $errors ) {
            $this->fail( "Rollback failed:\n" . print_r( $errors, true )
                . ";\n" . print_r( $details, true ) );
        }
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertEquals( $rev2->getSha1(), $page->getRevision()->getSha1(),
            "rollback did not revert to the correct revision" );
        $this->assertEquals( "one\n\ntwo", $page->getContent()->getNativeData() );
    }
 
    public function testDoRollback() {
        $admin = new User();
        $admin->setName( "Admin" );
        $admin->addToDatabase();
 
        $text = "one";
        $page = $this->newPage( "WikiPageTest_testDoRollback" );
        $page->doEditContent(
            ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
            "section one",
            EDIT_NEW,
            false,
            $admin
        );
        $rev1 = $page->getRevision();
 
        $user1 = new User();
        $user1->setName( "127.0.1.11" );
        $text .= "\n\ntwo";
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent(
            ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
            "adding section two",
            0,
            false,
            $user1
        );
 
        # now, try the rollback
        $admin->addGroup( "sysop" ); # XXX: make the test user a sysop...
        $token = $admin->getEditToken( 'rollback' );
        $errors = $page->doRollback(
            $user1->getName(),
            "testing revert",
            $token,
            false,
            $details,
            $admin
        );
 
        if ( $errors ) {
            $this->fail( "Rollback failed:\n" . print_r( $errors, true )
                . ";\n" . print_r( $details, true ) );
        }
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertEquals( $rev1->getSha1(), $page->getRevision()->getSha1(),
            "rollback did not revert to the correct revision" );
        $this->assertEquals( "one", $page->getContent()->getNativeData() );
    }
 
    public function testDoRollbackFailureSameContent() {
        $admin = new User();
        $admin->setName( "Admin" );
        $admin->addToDatabase();
        $admin->addGroup( "sysop" ); # XXX: make the test user a sysop...
 
        $text = "one";
        $page = $this->newPage( "WikiPageTest_testDoRollback" );
        $page->doEditContent(
            ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
            "section one",
            EDIT_NEW,
            false,
            $admin
        );
        $rev1 = $page->getRevision();
 
        $user1 = new User();
        $user1->setName( "127.0.1.11" );
        $user1->addToDatabase();
        $user1->addGroup( "sysop" ); # XXX: make the test user a sysop...
        $text .= "\n\ntwo";
        $page = new WikiPage( $page->getTitle() );
        $page->doEditContent(
            ContentHandler::makeContent( $text, $page->getTitle(), CONTENT_MODEL_WIKITEXT ),
            "adding section two",
            0,
            false,
            $user1
        );
 
        # now, do a the rollback from the same user was doing the edit before
        $resultDetails = [];
        $token = $user1->getEditToken( 'rollback' );
        $errors = $page->doRollback(
            $user1->getName(),
            "testing revert same user",
            $token,
            false,
            $resultDetails,
            $admin
        );
 
        $this->assertEquals( [], $errors, "Rollback failed same user" );
 
        # now, try the rollback
        $resultDetails = [];
        $token = $admin->getEditToken( 'rollback' );
        $errors = $page->doRollback(
            $user1->getName(),
            "testing revert",
            $token,
            false,
            $resultDetails,
            $admin
        );
 
        $this->assertEquals( [ [ 'alreadyrolled', 'WikiPageTest testDoRollback',
            '127.0.1.11', 'Admin' ] ], $errors, "Rollback not failed" );
 
        $page = new WikiPage( $page->getTitle() );
        $this->assertEquals( $rev1->getSha1(), $page->getRevision()->getSha1(),
            "rollback did not revert to the correct revision" );
        $this->assertEquals( "one", $page->getContent()->getNativeData() );
    }
 
    public static function provideGetAutoDeleteReason() {
        return [
            [
                [],
                false,
                false
            ],
 
            [
                [
                    [ "first edit", null ],
                ],
                "/first edit.*only contributor/",
                false
            ],
 
            [
                [
                    [ "first edit", null ],
                    [ "second edit", null ],
                ],
                "/second edit.*only contributor/",
                true
            ],
 
            [
                [
                    [ "first edit", "127.0.2.22" ],
                    [ "second edit", "127.0.3.33" ],
                ],
                "/second edit/",
                true
            ],
 
            [
                [
                    [
                        "first edit: "
                            . "Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam "
                            . " nonumy eirmod tempor invidunt ut labore et dolore magna "
                            . "aliquyam erat, sed diam voluptua. At vero eos et accusam "
                            . "et justo duo dolores et ea rebum. Stet clita kasd gubergren, "
                            . "no sea  takimata sanctus est Lorem ipsum dolor sit amet.'",
                        null
                    ],
                ],
                '/first edit:.*\.\.\."/',
                false
            ],
 
            [
                [
                    [ "first edit", "127.0.2.22" ],
                    [ "", "127.0.3.33" ],
                ],
                "/before blanking.*first edit/",
                true
            ],
 
        ];
    }
 
    public function testGetAutoDeleteReason( $edits, $expectedResult, $expectedHistory ) {
        global $wgUser;
 
        // NOTE: assume Help namespace to contain wikitext
        $page = $this->newPage( "Help:WikiPageTest_testGetAutoDeleteReason" );
 
        $c = 1;
 
        foreach ( $edits as $edit ) {
            $user = new User();
 
            if ( !empty( $edit[1] ) ) {
                $user->setName( $edit[1] );
            } else {
                $user = $wgUser;
            }
 
            $content = ContentHandler::makeContent( $edit[0], $page->getTitle(), $page->getContentModel() );
 
            $page->doEditContent( $content, "test edit $c", $c < 2 ? EDIT_NEW : 0, false, $user );
 
            $c += 1;
        }
 
        $reason = $page->getAutoDeleteReason( $hasHistory );
 
        if ( is_bool( $expectedResult ) || is_null( $expectedResult ) ) {
            $this->assertEquals( $expectedResult, $reason );
        } else {
            $this->assertTrue( (bool)preg_match( $expectedResult, $reason ),
                "Autosummary didn't match expected pattern $expectedResult: $reason" );
        }
 
        $this->assertEquals( $expectedHistory, $hasHistory,
            "expected \$hasHistory to be " . var_export( $expectedHistory, true ) );
 
        $page->doDeleteArticle( "done" );
    }
 
    public static function providePreSaveTransform() {
        return [
            [ 'hello this is ~~~',
                "hello this is [[Special:Contributions/127.0.0.1|127.0.0.1]]",
            ],
            [ 'hello \'\'this\'\' is <nowiki>~~~</nowiki>',
                'hello \'\'this\'\' is <nowiki>~~~</nowiki>',
            ],
        ];
    }
 
    public function testWikiPageFactory() {
        $title = Title::makeTitle( NS_FILE, 'Someimage.png' );
        $page = WikiPage::factory( $title );
        $this->assertEquals( 'WikiFilePage', get_class( $page ) );
 
        $title = Title::makeTitle( NS_CATEGORY, 'SomeCategory' );
        $page = WikiPage::factory( $title );
        $this->assertEquals( 'WikiCategoryPage', get_class( $page ) );
 
        $title = Title::makeTitle( NS_MAIN, 'SomePage' );
        $page = WikiPage::factory( $title );
        $this->assertEquals( 'WikiPage', get_class( $page ) );
    }
}