RevisionTest.php

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<?php
 
use MediaWiki\MediaWikiServices;
use MediaWiki\Revision\MutableRevisionRecord;
use MediaWiki\Revision\RevisionAccessException;
use MediaWiki\Revision\RevisionRecord;
use MediaWiki\Revision\RevisionStore;
use MediaWiki\Revision\SlotRecord;
use MediaWiki\Storage\BlobStoreFactory;
use MediaWiki\Storage\SqlBlobStore;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\LoadBalancer;
 
class RevisionTest extends MediaWikiTestCase {
 
    public function setUp() {
        parent::setUp();
        $this->setMwGlobals(
            'wgMultiContentRevisionSchemaMigrationStage',
            SCHEMA_COMPAT_WRITE_BOTH | SCHEMA_COMPAT_READ_NEW
        );
    }
 
    public function provideConstructFromArray() {
        yield 'with text' => [
            [
                'text' => 'hello world.',
                'content_model' => CONTENT_MODEL_JAVASCRIPT
            ],
        ];
        yield 'with content' => [
            [
                'content' => new JavaScriptContent( 'hellow world.' )
            ],
        ];
        // FIXME: test with and without user ID, and with a user object.
        // We can't prepare that here though, since we don't yet have a dummy DB
    }
 
    public function getMockTitle( $model = CONTENT_MODEL_WIKITEXT ) {
        $mock = $this->getMockBuilder( Title::class )
            ->disableOriginalConstructor()
            ->getMock();
        $mock->expects( $this->any() )
            ->method( 'getNamespace' )
            ->will( $this->returnValue( $this->getDefaultWikitextNS() ) );
        $mock->expects( $this->any() )
            ->method( 'getPrefixedText' )
            ->will( $this->returnValue( 'RevisionTest' ) );
        $mock->expects( $this->any() )
            ->method( 'getDBkey' )
            ->will( $this->returnValue( 'RevisionTest' ) );
        $mock->expects( $this->any() )
            ->method( 'getArticleID' )
            ->will( $this->returnValue( 23 ) );
        $mock->expects( $this->any() )
            ->method( 'getContentModel' )
            ->will( $this->returnValue( $model ) );
 
        return $mock;
    }
 
    public function testConstructFromArray( $rowArray ) {
        $rev = new Revision( $rowArray, 0, $this->getMockTitle() );
        $this->assertNotNull( $rev->getContent(), 'no content object available' );
        $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $rev->getContent()->getModel() );
        $this->assertEquals( CONTENT_MODEL_JAVASCRIPT, $rev->getContentModel() );
    }
 
    public function testConstructFromEmptyArray() {
        $rev = new Revision( [], 0, $this->getMockTitle() );
        $this->assertNull( $rev->getContent(), 'no content object should be available' );
    }
 
    public function testConstructFromArrayWithBadPageId() {
        Wikimedia\suppressWarnings();
        $rev = new Revision( [ 'page' => 77777777 ] );
        $this->assertSame( 77777777, $rev->getPage() );
        Wikimedia\restoreWarnings();
    }
 
    public function provideConstructFromArray_userSetAsExpected() {
        yield 'no user defaults to wgUser' => [
            [
                'content' => new JavaScriptContent( 'hello world.' ),
            ],
            null,
            null,
        ];
        yield 'user text and id' => [
            [
                'content' => new JavaScriptContent( 'hello world.' ),
                'user_text' => 'SomeTextUserName',
                'user' => 99,
 
            ],
            99,
            'SomeTextUserName',
        ];
        yield 'user text only' => [
            [
                'content' => new JavaScriptContent( 'hello world.' ),
                'user_text' => '111.111.111.111',
            ],
            0,
            '111.111.111.111',
        ];
    }
 
    public function testConstructFromArray_userSetAsExpected(
        array $rowArray,
        $expectedUserId,
        $expectedUserName
    ) {
        $testUser = $this->getTestUser()->getUser();
        $this->setMwGlobals( 'wgUser', $testUser );
        if ( $expectedUserId === null ) {
            $expectedUserId = $testUser->getId();
        }
        if ( $expectedUserName === null ) {
            $expectedUserName = $testUser->getName();
        }
 
        $rev = new Revision( $rowArray, 0, $this->getMockTitle() );
        $this->assertEquals( $expectedUserId, $rev->getUser() );
        $this->assertEquals( $expectedUserName, $rev->getUserText() );
    }
 
    public function provideConstructFromArrayThrowsExceptions() {
        yield 'content and text_id both not empty' => [
            [
                'content' => new WikitextContent( 'GOAT' ),
                'text_id' => 'someid',
            ],
            new MWException( 'The text_id field is only available in the pre-MCR schema' )
        ];
 
        yield 'with bad content object (class)' => [
            [ 'content' => new stdClass() ],
            new MWException( 'content field must contain a Content object' )
        ];
        yield 'with bad content object (string)' => [
            [ 'content' => 'ImAGoat' ],
            new MWException( 'content field must contain a Content object' )
        ];
        yield 'bad row format' => [
            'imastring, not a row',
            new InvalidArgumentException(
                '$row must be a row object, an associative array, or a RevisionRecord'
            )
        ];
    }
 
    public function testConstructFromArrayThrowsExceptions( $rowArray, Exception $expectedException ) {
        $this->setExpectedException(
            get_class( $expectedException ),
            $expectedException->getMessage(),
            $expectedException->getCode()
        );
        new Revision( $rowArray, 0, $this->getMockTitle() );
    }
 
    public function testConstructFromNothing() {
        $this->setExpectedException(
            InvalidArgumentException::class
        );
        new Revision( [] );
    }
 
    public function provideConstructFromRow() {
        yield 'Full construction' => [
            [
                'rev_id' => '42',
                'rev_page' => '23',
                'rev_timestamp' => '20171017114835',
                'rev_user_text' => '127.0.0.1',
                'rev_user' => '0',
                'rev_minor_edit' => '0',
                'rev_deleted' => '0',
                'rev_len' => '46',
                'rev_parent_id' => '1',
                'rev_sha1' => 'rdqbbzs3pkhihgbs8qf2q9jsvheag5z',
                'rev_comment_text' => 'Goat Comment!',
                'rev_comment_data' => null,
                'rev_comment_cid' => null,
            ],
            function ( RevisionTest $testCase, Revision $rev ) {
                $testCase->assertSame( 42, $rev->getId() );
                $testCase->assertSame( 23, $rev->getPage() );
                $testCase->assertSame( '20171017114835', $rev->getTimestamp() );
                $testCase->assertSame( '127.0.0.1', $rev->getUserText() );
                $testCase->assertSame( 0, $rev->getUser() );
                $testCase->assertSame( false, $rev->isMinor() );
                $testCase->assertSame( false, $rev->isDeleted( Revision::DELETED_TEXT ) );
                $testCase->assertSame( 46, $rev->getSize() );
                $testCase->assertSame( 1, $rev->getParentId() );
                $testCase->assertSame( 'rdqbbzs3pkhihgbs8qf2q9jsvheag5z', $rev->getSha1() );
                $testCase->assertSame( 'Goat Comment!', $rev->getComment() );
            }
        ];
        yield 'default field values' => [
            [
                'rev_id' => '42',
                'rev_page' => '23',
                'rev_timestamp' => '20171017114835',
                'rev_user_text' => '127.0.0.1',
                'rev_user' => '0',
                'rev_minor_edit' => '0',
                'rev_deleted' => '0',
                'rev_comment_text' => 'Goat Comment!',
                'rev_comment_data' => null,
                'rev_comment_cid' => null,
            ],
            function ( RevisionTest $testCase, Revision $rev ) {
                // parent ID may be null
                $testCase->assertSame( null, $rev->getParentId(), 'revision id' );
 
                // given fields
                $testCase->assertSame( $rev->getTimestamp(), '20171017114835', 'timestamp' );
                $testCase->assertSame( $rev->getUserText(), '127.0.0.1', 'user name' );
                $testCase->assertSame( $rev->getUser(), 0, 'user id' );
                $testCase->assertSame( $rev->getComment(), 'Goat Comment!' );
                $testCase->assertSame( false, $rev->isMinor(), 'minor edit' );
                $testCase->assertSame( 0, $rev->getVisibility(), 'visibility flags' );
            }
        ];
    }
 
    public function testConstructFromRow( array $arrayData, callable $assertions ) {
        $row = (object)$arrayData;
        $rev = new Revision( $row, 0, $this->getMockTitle() );
        $assertions( $this, $rev );
    }
 
    public function testConstructFromRowWithBadPageId() {
        $this->overrideMwServices();
        Wikimedia\suppressWarnings();
        $rev = new Revision( (object)[
            'rev_page' => 77777777,
            'rev_comment_text' => '',
            'rev_comment_data' => null,
        ] );
        $this->assertSame( 77777777, $rev->getPage() );
        Wikimedia\restoreWarnings();
    }
 
    public function provideGetId() {
        yield [
            [],
            null
        ];
        yield [
            [ 'id' => 998 ],
            998
        ];
    }
 
    public function testGetId( $rowArray, $expectedId ) {
        $rev = new Revision( $rowArray, 0, $this->getMockTitle() );
        $this->assertEquals( $expectedId, $rev->getId() );
    }
 
    public function provideSetId() {
        yield [ '123', 123 ];
        yield [ 456, 456 ];
    }
 
    public function testSetId( $input, $expected ) {
        $rev = new Revision( [], 0, $this->getMockTitle() );
        $rev->setId( $input );
        $this->assertSame( $expected, $rev->getId() );
    }
 
    public function provideSetUserIdAndName() {
        yield [ '123', 123, 'GOaT' ];
        yield [ 456, 456, 'GOaT' ];
    }
 
    public function testSetUserIdAndName( $inputId, $expectedId, $name ) {
        $rev = new Revision( [], 0, $this->getMockTitle() );
        $rev->setUserIdAndName( $inputId, $name );
        $this->assertSame( $expectedId, $rev->getUser( Revision::RAW ) );
        $this->assertEquals( $name, $rev->getUserText( Revision::RAW ) );
    }
 
    public function provideGetParentId() {
        yield [ [], null ];
        yield [ [ 'parent_id' => '123' ], 123 ];
        yield [ [ 'parent_id' => 456 ], 456 ];
    }
 
    public function testGetParentId( $rowArray, $expected ) {
        $rev = new Revision( $rowArray, 0, $this->getMockTitle() );
        $this->assertSame( $expected, $rev->getParentId() );
    }
 
    public function provideGetRevisionText() {
        yield 'Generic test' => [
            'This is a goat of revision text.',
            (object)[
                'old_flags' => '',
                'old_text' => 'This is a goat of revision text.',
            ],
        ];
        yield 'garbage in, garbage out' => [
            false,
            false,
        ];
    }
 
    public function testGetRevisionText( $expected, $rowData, $prefix = 'old_', $wiki = false ) {
        $this->assertEquals(
            $expected,
            Revision::getRevisionText( $rowData, $prefix, $wiki ) );
    }
 
    public function provideGetRevisionTextWithZlibExtension() {
        yield 'Generic gzip test' => [
            'This is a small goat of revision text.',
            (object)[
                'old_flags' => 'gzip',
                'old_text' => gzdeflate( 'This is a small goat of revision text.' ),
            ],
        ];
    }
 
    public function testGetRevisionWithZlibExtension( $expected, $rowData ) {
        $this->checkPHPExtension( 'zlib' );
        $this->testGetRevisionText( $expected, $rowData );
    }
 
    public function provideGetRevisionTextWithZlibExtension_badData() {
        yield 'Generic gzip test' => [
            'This is a small goat of revision text.',
            (object)[
                'old_flags' => 'gzip',
                'old_text' => 'DEAD BEEF',
            ],
        ];
    }
 
    public function testGetRevisionWithZlibExtension_badData( $expected, $rowData ) {
        $this->checkPHPExtension( 'zlib' );
        Wikimedia\suppressWarnings();
        $this->assertFalse(
            Revision::getRevisionText(
                (object)$rowData
            )
        );
        Wikimedia\suppressWarnings( true );
    }
 
    private function getWANObjectCache() {
        return new WANObjectCache( [ 'cache' => new HashBagOStuff() ] );
    }
 
    private function getBlobStore() {
        $lb = $this->getMockBuilder( LoadBalancer::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $cache = $this->getWANObjectCache();
 
        $blobStore = new SqlBlobStore( $lb, $cache );
        return $blobStore;
    }
 
    private function mockBlobStoreFactory( $blobStore ) {
        $factory = $this->getMockBuilder( BlobStoreFactory::class )
            ->disableOriginalConstructor()
            ->getMock();
        $factory->expects( $this->any() )
            ->method( 'newBlobStore' )
            ->willReturn( $blobStore );
        $factory->expects( $this->any() )
            ->method( 'newSqlBlobStore' )
            ->willReturn( $blobStore );
        return $factory;
    }
 
    private function getRevisionStore() {
        $lb = $this->getMockBuilder( LoadBalancer::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $cache = $this->getWANObjectCache();
 
        $blobStore = new RevisionStore(
            $lb,
            $this->getBlobStore(),
            $cache,
            MediaWikiServices::getInstance()->getCommentStore(),
            MediaWikiServices::getInstance()->getContentModelStore(),
            MediaWikiServices::getInstance()->getSlotRoleStore(),
            MediaWikiServices::getInstance()->getSlotRoleRegistry(),
            MIGRATION_OLD,
            MediaWikiServices::getInstance()->getActorMigration()
        );
        return $blobStore;
    }
 
    public function provideGetRevisionTextWithLegacyEncoding() {
        yield 'Utf8Native' => [
            "Wiki est l'\xc3\xa9cole superieur !",
            'fr',
            'iso-8859-1',
            (object)[
                'old_flags' => 'utf-8',
                'old_text' => "Wiki est l'\xc3\xa9cole superieur !",
            ]
        ];
        yield 'Utf8Legacy' => [
            "Wiki est l'\xc3\xa9cole superieur !",
            'fr',
            'iso-8859-1',
            (object)[
                'old_flags' => '',
                'old_text' => "Wiki est l'\xe9cole superieur !",
            ]
        ];
    }
 
    public function testGetRevisionWithLegacyEncoding( $expected, $lang, $encoding, $rowData ) {
        $blobStore = $this->getBlobStore();
        $blobStore->setLegacyEncoding( $encoding, Language::factory( $lang ) );
        $this->setService( 'BlobStoreFactory', $this->mockBlobStoreFactory( $blobStore ) );
 
        $this->testGetRevisionText( $expected, $rowData );
    }
 
    public function provideGetRevisionTextWithGzipAndLegacyEncoding() {
        yield 'Utf8NativeGzip' => [
            "Wiki est l'\xc3\xa9cole superieur !",
            'fr',
            'iso-8859-1',
            (object)[
                'old_flags' => 'gzip,utf-8',
                'old_text' => gzdeflate( "Wiki est l'\xc3\xa9cole superieur !" ),
            ]
        ];
        yield 'Utf8LegacyGzip' => [
            "Wiki est l'\xc3\xa9cole superieur !",
            'fr',
            'iso-8859-1',
            (object)[
                'old_flags' => 'gzip',
                'old_text' => gzdeflate( "Wiki est l'\xe9cole superieur !" ),
            ]
        ];
    }
 
    public function testGetRevisionWithGzipAndLegacyEncoding( $expected, $lang, $encoding, $rowData ) {
        $this->checkPHPExtension( 'zlib' );
 
        $blobStore = $this->getBlobStore();
        $blobStore->setLegacyEncoding( $encoding, Language::factory( $lang ) );
        $this->setService( 'BlobStoreFactory', $this->mockBlobStoreFactory( $blobStore ) );
 
        $this->testGetRevisionText( $expected, $rowData );
    }
 
    public function testCompressRevisionTextUtf8() {
        $row = new stdClass;
        $row->old_text = "Wiki est l'\xc3\xa9cole superieur !";
        $row->old_flags = Revision::compressRevisionText( $row->old_text );
        $this->assertTrue( strpos( $row->old_flags, 'utf-8' ) !== false,
            "Flags should contain 'utf-8'" );
        $this->assertFalse( strpos( $row->old_flags, 'gzip' ) !== false,
            "Flags should not contain 'gzip'" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            $row->old_text, "Direct check" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            Revision::getRevisionText( $row ), "getRevisionText" );
    }
 
    public function testCompressRevisionTextUtf8Gzip() {
        $this->checkPHPExtension( 'zlib' );
 
        $blobStore = $this->getBlobStore();
        $blobStore->setCompressBlobs( true );
        $this->setService( 'BlobStoreFactory', $this->mockBlobStoreFactory( $blobStore ) );
 
        $row = new stdClass;
        $row->old_text = "Wiki est l'\xc3\xa9cole superieur !";
        $row->old_flags = Revision::compressRevisionText( $row->old_text );
        $this->assertTrue( strpos( $row->old_flags, 'utf-8' ) !== false,
            "Flags should contain 'utf-8'" );
        $this->assertTrue( strpos( $row->old_flags, 'gzip' ) !== false,
            "Flags should contain 'gzip'" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            gzinflate( $row->old_text ), "Direct check" );
        $this->assertEquals( "Wiki est l'\xc3\xa9cole superieur !",
            Revision::getRevisionText( $row ), "getRevisionText" );
    }
 
    public function testLoadFromTitle() {
        $this->setMwGlobals( 'wgActorTableSchemaMigrationStage', SCHEMA_COMPAT_NEW );
        $this->overrideMwServices();
        $title = $this->getMockTitle();
 
        $conditions = [
            'rev_id=page_latest',
            'page_namespace' => $title->getNamespace(),
            'page_title' => $title->getDBkey()
        ];
 
        $row = (object)[
            'rev_id' => '42',
            'rev_page' => $title->getArticleID(),
            'rev_timestamp' => '20171017114835',
            'rev_user_text' => '127.0.0.1',
            'rev_user' => '0',
            'rev_minor_edit' => '0',
            'rev_deleted' => '0',
            'rev_len' => '46',
            'rev_parent_id' => '1',
            'rev_sha1' => 'rdqbbzs3pkhihgbs8qf2q9jsvheag5z',
            'rev_comment_text' => 'Goat Comment!',
            'rev_comment_data' => null,
            'rev_comment_cid' => null,
            'rev_content_format' => 'GOATFORMAT',
            'rev_content_model' => 'GOATMODEL',
        ];
 
        $domain = MediaWikiServices::getInstance()->getDBLoadBalancer()->getLocalDomainID();
        $db = $this->getMock( IDatabase::class );
        $db->expects( $this->any() )
            ->method( 'getDomainId' )
            ->will( $this->returnValue( $domain ) );
        $db->expects( $this->once() )
            ->method( 'selectRow' )
            ->with(
                $this->equalTo( [
                    'revision', 'page', 'user',
                    'temp_rev_comment' => 'revision_comment_temp', 'comment_rev_comment' => 'comment',
                    'temp_rev_user' => 'revision_actor_temp', 'actor_rev_user' => 'actor',
                ] ),
                // We don't really care about the fields are they come from the selectField methods
                $this->isType( 'array' ),
                $this->equalTo( $conditions ),
                // Method name
                $this->stringContains( 'fetchRevisionRowFromConds' ),
                // We don't really care about the options here
                $this->isType( 'array' ),
                // We don't really care about the join conds are they come from the joinCond methods
                $this->isType( 'array' )
            )
            ->willReturn( $row );
 
        $revision = Revision::loadFromTitle( $db, $title );
 
        $this->assertEquals( $title->getArticleID(), $revision->getTitle()->getArticleID() );
        $this->assertEquals( $row->rev_id, $revision->getId() );
        $this->assertEquals( $row->rev_len, $revision->getSize() );
        $this->assertEquals( $row->rev_sha1, $revision->getSha1() );
        $this->assertEquals( $row->rev_parent_id, $revision->getParentId() );
        $this->assertEquals( $row->rev_timestamp, $revision->getTimestamp() );
        $this->assertEquals( $row->rev_comment_text, $revision->getComment() );
        $this->assertEquals( $row->rev_user_text, $revision->getUserText() );
    }
 
    public function provideDecompressRevisionText() {
        yield '(no legacy encoding), false in false out' => [ false, false, [], false ];
        yield '(no legacy encoding), empty in empty out' => [ false, '', [], '' ];
        yield '(no legacy encoding), empty in empty out' => [ false, 'A', [], 'A' ];
        yield '(no legacy encoding), string in with gzip flag returns string' => [
            // gzip string below generated with gzdeflate( 'AAAABBAAA' )
            false, "sttttr\002\022\000", [ 'gzip' ], 'AAAABBAAA',
        ];
        yield '(no legacy encoding), string in with object flag returns false' => [
            // gzip string below generated with serialize( 'JOJO' )
            false, "s:4:\"JOJO\";", [ 'object' ], false,
        ];
        yield '(no legacy encoding), serialized object in with object flag returns string' => [
            false,
            // Using a TitleValue object as it has a getText method (which is needed)
            serialize( new TitleValue( 0, 'HHJJDDFF' ) ),
            [ 'object' ],
            'HHJJDDFF',
        ];
        yield '(no legacy encoding), serialized object in with object & gzip flag returns string' => [
            false,
            // Using a TitleValue object as it has a getText method (which is needed)
            gzdeflate( serialize( new TitleValue( 0, '8219JJJ840' ) ) ),
            [ 'object', 'gzip' ],
            '8219JJJ840',
        ];
        yield '(ISO-8859-1 encoding), string in string out' => [
            'ISO-8859-1',
            iconv( 'utf-8', 'ISO-8859-1', "1®Àþ1" ),
            [],
            '1®Àþ1',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with gzip flags returns string' => [
            'ISO-8859-1',
            gzdeflate( iconv( 'utf-8', 'ISO-8859-1', "4®Àþ4" ) ),
            [ 'gzip' ],
            '4®Àþ4',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with object flags returns string' => [
            'ISO-8859-1',
            serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "3®Àþ3" ) ) ),
            [ 'object' ],
            '3®Àþ3',
        ];
        yield '(ISO-8859-1 encoding), serialized object in with object & gzip flags returns string' => [
            'ISO-8859-1',
            gzdeflate( serialize( new TitleValue( 0, iconv( 'utf-8', 'ISO-8859-1', "2®Àþ2" ) ) ) ),
            [ 'gzip', 'object' ],
            '2®Àþ2',
        ];
    }
 
    public function testDecompressRevisionText( $legacyEncoding, $text, $flags, $expected ) {
        $blobStore = $this->getBlobStore();
        if ( $legacyEncoding ) {
            $blobStore->setLegacyEncoding( $legacyEncoding, Language::factory( 'en' ) );
        }
 
        $this->setService( 'BlobStoreFactory', $this->mockBlobStoreFactory( $blobStore ) );
        $this->assertSame(
            $expected,
            Revision::decompressRevisionText( $text, $flags )
        );
    }
 
    public function provideTestGetRevisionText_returnsDecompressedTextFieldWhenNotExternal() {
        yield 'Just text' => [
            (object)[ 'old_text' => 'SomeText' ],
            'old_',
            'SomeText'
        ];
        // gzip string below generated with gzdeflate( 'AAAABBAAA' )
        yield 'gzip text' => [
            (object)[
                'old_text' => "sttttr\002\022\000",
                'old_flags' => 'gzip'
            ],
            'old_',
            'AAAABBAAA'
        ];
        yield 'gzip text and different prefix' => [
            (object)[
                'jojo_text' => "sttttr\002\022\000",
                'jojo_flags' => 'gzip'
            ],
            'jojo_',
            'AAAABBAAA'
        ];
    }
 
    public function testGetRevisionText_returnsDecompressedTextFieldWhenNotExternal(
        $row,
        $prefix,
        $expected
    ) {
        $this->assertSame( $expected, Revision::getRevisionText( $row, $prefix ) );
    }
 
    public function provideTestGetRevisionText_external_returnsFalseWhenNotEnoughUrlParts() {
        yield 'Just some text' => [ 'someNonUrlText' ];
        yield 'No second URL part' => [ 'someProtocol://' ];
    }
 
    public function testGetRevisionText_external_returnsFalseWhenNotEnoughUrlParts(
        $text
    ) {
        Wikimedia\suppressWarnings();
        $this->assertFalse(
            Revision::getRevisionText(
                (object)[
                    'old_text' => $text,
                    'old_flags' => 'external',
                ]
            )
        );
        Wikimedia\suppressWarnings( true );
    }
 
    public function testGetRevisionText_external_noOldId() {
        $this->setService(
            'ExternalStoreFactory',
            new ExternalStoreFactory( [ 'ForTesting' ] )
        );
        $this->assertSame(
            'AAAABBAAA',
            Revision::getRevisionText(
                (object)[
                    'old_text' => 'ForTesting://cluster1/12345',
                    'old_flags' => 'external,gzip',
                ]
            )
        );
    }
 
    public function testGetRevisionText_external_oldId() {
        $cache = $this->getWANObjectCache();
        $this->setService( 'MainWANObjectCache', $cache );
 
        $this->setService(
            'ExternalStoreFactory',
            new ExternalStoreFactory( [ 'ForTesting' ] )
        );
 
        $lb = $this->getMockBuilder( LoadBalancer::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $blobStore = new SqlBlobStore( $lb, $cache );
        $this->setService( 'BlobStoreFactory', $this->mockBlobStoreFactory( $blobStore ) );
 
        $this->assertSame(
            'AAAABBAAA',
            Revision::getRevisionText(
                (object)[
                    'old_text' => 'ForTesting://cluster1/12345',
                    'old_flags' => 'external,gzip',
                    'old_id' => '7777',
                ]
            )
        );
 
        $cacheKey = $cache->makeGlobalKey(
            'BlobStore',
            'address',
            $lb->getLocalDomainID(),
            'tt:7777'
        );
        $this->assertSame( 'AAAABBAAA', $cache->get( $cacheKey ) );
    }
 
    public function testGetSize() {
        $title = $this->getMockTitle();
 
        $rec = new MutableRevisionRecord( $title );
        $rev = new Revision( $rec, 0, $title );
 
        $this->assertSame( 0, $rev->getSize(), 'Size of no slots is 0' );
 
        $rec->setSize( 13 );
        $this->assertSame( 13, $rev->getSize() );
    }
 
    public function testGetSize_failure() {
        $title = $this->getMockTitle();
 
        $rec = $this->getMockBuilder( RevisionRecord::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $rec->method( 'getSize' )
            ->willThrowException( new RevisionAccessException( 'Oops!' ) );
 
        $rev = new Revision( $rec, 0, $title );
        $this->assertNull( $rev->getSize() );
    }
 
    public function testGetSha1() {
        $title = $this->getMockTitle();
 
        $rec = new MutableRevisionRecord( $title );
        $rev = new Revision( $rec, 0, $title );
 
        $emptyHash = SlotRecord::base36Sha1( '' );
        $this->assertSame( $emptyHash, $rev->getSha1(), 'Sha1 of no slots is hash of empty string' );
 
        $rec->setSha1( 'deadbeef' );
        $this->assertSame( 'deadbeef', $rev->getSha1() );
    }
 
    public function testGetSha1_failure() {
        $title = $this->getMockTitle();
 
        $rec = $this->getMockBuilder( RevisionRecord::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $rec->method( 'getSha1' )
            ->willThrowException( new RevisionAccessException( 'Oops!' ) );
 
        $rev = new Revision( $rec, 0, $title );
        $this->assertNull( $rev->getSha1() );
    }
 
    public function testGetContent() {
        $title = $this->getMockTitle();
 
        $rec = new MutableRevisionRecord( $title );
        $rev = new Revision( $rec, 0, $title );
 
        $this->assertNull( $rev->getContent(), 'Content of no slots is null' );
 
        $content = new TextContent( 'Hello Kittens!' );
        $rec->setContent( SlotRecord::MAIN, $content );
        $this->assertSame( $content, $rev->getContent() );
    }
 
    public function testGetContent_failure() {
        $title = $this->getMockTitle();
 
        $rec = $this->getMockBuilder( RevisionRecord::class )
            ->disableOriginalConstructor()
            ->getMock();
 
        $rec->method( 'getContent' )
            ->willThrowException( new RevisionAccessException( 'Oops!' ) );
 
        $rev = new Revision( $rec, 0, $title );
        $this->assertNull( $rev->getContent() );
    }
 
}