/**
  * Checks that invalid sort directions in ORDER BY get converted to ASC.
  */
 public function testInvalidDirection()
 {
     $this->query->orderBy('test', 'invalid direction');
     $order_bys = $this->query->getOrderBy();
     $this->assertEquals($order_bys['test'], 'ASC', 'Invalid order by direction is converted to ASC.');
 }