Correspondence::hasCorrespondenceErrorsDisplayed PHP 메소드

    protected function hasCorrespondenceErrorsDisplayed()
    {
        sleep(5);
        return (bool) $this->find('xpath', $this->getElement('letterBlankError')->getXpath()) && (bool) $this->find('xpath', $this->getElement('letterSalutationBlankError')->getXpath()) && (bool) $this->find('xpath', $this->getElement('letterBodyBlankError')->getXpath());
    }