/**
  * Format response.
  *
  * @param MessageInterface $response
  *
  * @return array
  */
 public function getResponse(MessageInterface $response)
 {
     $result = [];
     if (null !== $response) {
         $responseStr = $this->parser->getBodyWithHeaders($response);
         $result = ['response' => $responseStr];
     }
     return $result;
 }
 function it_returns_a_formatted_response(MessageInterface $response, HttpParser $parser)
 {
     $parser->getBodyWithHeaders($response)->shouldBeCalled()->willReturn('{"data": {}}');
     $this->getResponse($response)->shouldReturn(['response' => '{"data": {}}']);
 }