result, _ := ioutil.ReadAll(readCloser)
	if string(result) != message {
		t.Errorf("Stream content does not match. Got: %s. Expected: %s.", string(result), message)
	}
}

func fakeInternalServerErrorTransport(mime, message string) http.RoundTripper {
	content := fmt.Sprintf("HTTP/1.1 500 \"Internal Server Error\"\nContent-Type: %s\n\n%s", mime, message)
	return &testTransport{body: content}
}