/**
  * @param Response           $response
  * @param asserter\generator $asserter
  * @param string             $expectedResponseContentType application/json|application/xml
  */
 private function checkForHttpError(Response $response, asserter\generator $asserter, $expectedResponseContentType)
 {
     if ($response->isError() || $this->isHttpErrorFatal($response, $expectedResponseContentType)) {
         $asserter->boolean(true)->isTrue('Benchmarking encountered a Fatal Error');
     }
 }