/**
 * Returns the requesetd type of set
 */
rectest.set.SetFactory = Class( 'SetFactory',
{
    'public fromId': function( id, test_case, options )
    {
        var sets = rectest.set;

        if ( !( Class.isA( rectest.TestCase, test_case ) ) )
        {
            throw TypeError( "Invalid test case: " + test_case );
        }

        return [
            null,
            sets.RandomGroupedSet,
            null,
            null
        ][ id ]( test_case, options );
    }
} );