private function assertObjectDoesNotExist($object) { $pk_value = $object->{$this->model->get_primary_key()->getter()}(); if (!empty($pk_value)) { try { $this->sqldao->find_by_id($pk_value); self::assertFalse(true, 'object with id ' . $pk_value . ' exists'); } catch (ObjectNotFoundException $ex) { // object not found } } }