public void should_ReturnExpectedResourceIdHeader_WhenSuccessfulRequestMade() throws Exception {
final String requestUrl = String.format("%s%s", STUBS_URL, "/this/stub/should/always/be/second/in/this/file");
final HttpRequest request = HttpUtils.constructHttpRequest(HttpMethods.GET, requestUrl);
final HttpResponse response = request.execute();
final HttpHeaders headers = response.getHeaders();
assertThat(headers.getContentType().contains("application/json")).isTrue();
assertThat(headers.containsKey(StubResponse.STUBBY_RESOURCE_ID_HEADER)).isTrue();
final List<String> headerValues = (List<String>) headers.get(StubResponse.STUBBY_RESOURCE_ID_HEADER);