public void CheckAuthnRequestGenerationTest()
        {
            string xmlString = ReadFile(xmlFilename);

            Saml2Serializer saml = new Saml2Serializer();
            string          original;
            string          zipped   = saml.Deflate(xmlString, out original);
            string          unzipped = saml.Inflate(zipped);


            Assert.AreEqual(original, unzipped);

            // result: fZLLTsMwEEV/xfI+OCkONKOmUqBCrVRo1RQWbJCTOMQosYPHAfr3uClILFA3XszcOXcenqHo2kkP2eAavZPvg0RHMkRpnTL61mgcOmlzaT9UKR9365Q2zvXA2FsPEY95zChZ+BqlxbHglEaf9yHRNUMBU84v2XIoWJ7dr1meb9iNNZ/egJI7Y0s5Oqe0Fi1KSlaLlL5UCZ9Gk6QOoujqOuCFqALh34Anop6G0+uaR7GXIg5ypdEJ7VI6CaOrIAqDiO/DGPglhOFFksTPlGytcaY07Y3SldKvKR2sBiNQIWjRSQRXwrE3mFyEUJxECMv9fhtsN/mekidpcZzNCyj56lqNcFrbeVb/Y0zJnMzGAhh7tn8Z5xHi9xJ03hwKqyo1AmbsL+6X3sODB6wWW9Oq8kCytjWft1YKJ1Pq7CDHhXfCnbc8RlQV1KMU+uPs6KR2lDBvxP75L/Nv
        }