DatabaseMysqlBaseTest.php

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<?php
class FakeDatabaseMysqlBase extends DatabaseMysqlBase {
    // From DatabaseBase
    protected function closeConnection() {}
    protected function doQuery( $sql ) {}

    // From DatabaseMysql
    protected function mysqlConnect( $realServer ) {}
    protected function mysqlFreeResult( $res ) {}
    protected function mysqlFetchObject( $res ) {}
    protected function mysqlFetchArray( $res ) {}
    protected function mysqlNumRows( $res ) {}
    protected function mysqlNumFields( $res ) {}
    protected function mysqlFieldName( $res, $n ) {}
    protected function mysqlDataSeek( $res, $row ) {}
    protected function mysqlError( $conn = null ) {}
    protected function mysqlFetchField( $res, $n ) {}
    protected function mysqlPing() {}

    // From interface DatabaseType
    function insertId() {}
    function lastErrno() {}
    function affectedRows() {}
    function getServerVersion() {}
}

class DatabaseMysqlBaseTest extends MediaWikiTestCase {

    public function testAddIdentifierQuotes( $expected, $in ) {
        $db = new FakeDatabaseMysqlBase();
        $quoted = $db->addIdentifierQuotes( $in );
        $this->assertEquals($expected, $quoted);
    }


    function provideDiapers() {
        return array(
            // Format: expected, input
            array( '``', '' ),

            // Yeah I really hate loosely typed PHP idiocies nowadays
            array( '``', null ),

            // Dear codereviewer, guess what addIdentifierQuotes()
            // will return with thoses:
            array( '``', false ),
            array( '`1`', true ),

            // We never know what could happen
            array( '`0`', 0 ),
            array( '`1`', 1 ),

            // Whatchout! Should probably use something more meaningful
            array( "`'`", "'" ),  # single quote
            array( '`"`', '"' ),  # double quote
            array( '````', '`' ), # backtick
            array( '`’`', '’' ),  # apostrophe (look at your encyclopedia)

            // sneaky NUL bytes are lurking everywhere
            array( '``', "\0" ),
            array( '`xyzzy`', "\0x\0y\0z\0z\0y\0" ),

            // unicode chars
            array(
                self::createUnicodeString( '`\u0001a\uFFFFb`' ),
                self::createUnicodeString( '\u0001a\uFFFFb' )
            ),
            array(
                self::createUnicodeString( '`\u0001\uFFFF`' ),
                self::createUnicodeString( '\u0001\u0000\uFFFF\u0000' )
            ),
            array( '`☃`', '☃' ),
            array( '`メインページ`', 'メインページ' ),
            array( '`Басты_бет`', 'Басты_бет' ),

            // Real world:
            array( '`Alix`', 'Alix' ),  # while( ! $recovered ) { sleep(); }
            array( '`Backtick: ```', 'Backtick: `' ),
            array( '`This is a test`', 'This is a test' ),
        );
    }

    private static function createUnicodeString($str) {
        return json_decode( '"' . $str . '"' );
    }

    function getMockForViews() {
        $db = $this->getMockBuilder( 'DatabaseMysql' )
            ->disableOriginalConstructor()
            ->setMethods( array( 'fetchRow', 'query' ) )
            ->getMock();

        $db->expects( $this->any() )
            ->method( 'query' )
            ->with( $this->anything() )
            ->will(
                $this->returnValue( null )
            );

        $db->expects( $this->any() )
            ->method( 'fetchRow' )
            ->with( $this->anything() )
            ->will( $this->onConsecutiveCalls(
                array( 'Tables_in_' => 'view1' ),
                array( 'Tables_in_' => 'view2' ),
                array( 'Tables_in_' => 'myview' ),
                false  # no more rows
            ));
        return $db;
    }
    function testListviews() {
        $db = $this->getMockForViews();

        // The first call populate an internal cache of views
        $this->assertEquals( array( 'view1', 'view2', 'myview'),
            $db->listViews() );
        $this->assertEquals( array( 'view1', 'view2', 'myview'),
            $db->listViews() );

        // Prefix filtering
        $this->assertEquals( array( 'view1', 'view2' ),
            $db->listViews( 'view' ) );
        $this->assertEquals( array( 'myview' ),
            $db->listViews( 'my' ) );
        $this->assertEquals( array(),
            $db->listViews( 'UNUSED_PREFIX' ) );
        $this->assertEquals( array( 'view1', 'view2', 'myview'),
            $db->listViews( '' ) );
    }

    function testIsView( $isView, $viewName ) {
        $db = $this->getMockForViews();

        switch( $isView ) {
            case true:
                $this->assertTrue( $db->isView( $viewName ),
                    "$viewName should be considered a view" );
            break;

            case false:
                $this->assertFalse( $db->isView( $viewName ),
                    "$viewName has not been defined as a view" );
            break;
        }

    }

    function provideViewExistanceChecks() {
        return array(
            // format: whether it is a view, view name
            array( true, 'view1' ),
            array( true, 'view2' ),
            array( true, 'myview' ),

            array( false, 'user' ),

            array( false, 'view10' ),
            array( false, 'my' ),
            array( false, 'OH_MY_GOD' ),  # they killed kenny!
        );
    }

}