code: public static void addPendingHttpResponse(int statusCode, String responseBody, Header... headers) {
      getFakeHttpLayer().addPendingHttpResponse(statusCode, responseBody, headers);
    }
docs: Sets up an HTTP response to be returned by calls to Apache's {@code HttpClient} implementers.
  
  @param statusCode   the status code of the response
  @param responseBody the body of the response
  @param headers      optional headers for the request