lithium\tests\mocks\data\source\database\adapter\MockAdapter::enabled PHP Method

    public static function enabled($feature = null)
    {
        if (!$feature) {
            return true;
        }
        $features = array('arrays' => false, 'transactions' => true, 'booleans' => true, 'schema' => true, 'relationships' => true, 'sources' => true);
        return isset($features[$feature]) ? $features[$feature] : null;
    }