func assertMD5(t *testing.T, req *request.Request) { err := req.Build() assert.NoError(t, err) b, _ := ioutil.ReadAll(req.HTTPRequest.Body) out := md5.Sum(b) assert.NotEmpty(t, b) assert.Equal(t, base64.StdEncoding.EncodeToString(out[:]), req.HTTPRequest.Header.Get("Content-MD5")) }