mageekguy\atoum\asserters\variable::valueIsSet PHP 메소드

    protected function valueIsSet($message = 'Value is undefined')
    {
        if ($this->isSet === false) {
            throw new exceptions\logic($message);
        }
        return $this;
    }

 protected function valueIsSet($message = 'Object is undefined')
 {
     if (self::isObject(parent::valueIsSet($message)->value) === false) {
         throw new exceptions\logic($message);
     }
     return $this;
 }