public void WriteResponse_11()
        {
            var response = new XacmlContextResponse(new XacmlContextResult(XacmlContextDecision.NotApplicable, new XacmlContextStatus(XacmlContextStatusCode.Success)));

            StringBuilder builder = new StringBuilder();
            using (XmlWriter writer = XmlWriter.Create(builder))
            {
                var serializer = new Xacml11ProtocolSerializer();
                serializer.WriteContextResponse(writer, response);
            }

            string xml = builder.ToString();
            ValidateMessage(xml, @"..\..\_Data\cs-xacml-schema-context-01.xsd");
        }