Sokil\Mongo\Database::executeJS PHP Method

    public function executeJS($code, array $args = array())
    {
        $response = $this->getMongoDB()->execute($code, $args);
        if ($response['ok'] == 1.0) {
            return $response['retval'];
        } else {
            throw new Exception('Error #' . $response['code'] . ': ' . $response['errmsg'], $response['code']);
        }
    }

 /**
  * @expectedException \Sokil\Mongo\Exception
  * @expectedExceptionMessage Error #16722: exception: ReferenceError: gversion is not defined
  */
 public function testExecuteInvalidJs()
 {
     $this->database->executeJS('gversion()');
 }