/**
  * @param TestCase $case
  * @param DOMNode  $childNode
  */
 protected function addFailure(TestCase $case, DOMNode $childNode)
 {
     $result = new Result(Result::STATUS_FAILED);
     if (strlen($childNode->nodeValue) > 0) {
         $result->setComment($childNode->nodeValue);
     } elseif (null !== $childNode->attributes->getNamedItem('message')) {
         $result->setComment($childNode->attributes->getNamedItem('message')->nodeValue);
     }
     $case->getResults()->add($result);
 }