public conneg_with_endpoint_that_accepts_all_formatters_and_form_posts()
        {
            input = new XmlJsonHtmlMessage{
                Id = Guid.NewGuid()
            };

            expectedJson = JsonUtil.ToJson(input);

            var writer = new StringWriter();
            var xmlWriter = new XmlTextWriter(writer){
                Formatting = Formatting.None
            };
            new XmlSerializer(typeof (XmlJsonHtmlMessage)).Serialize(xmlWriter, input);
            expectedXml = writer.ToString();
        }
 public XmlJsonHtmlMessage post_send_mixed(XmlJsonHtmlMessage message)
 {
     return message;
 }