public JsonDeserializationTest()
        {
            var serializer = new JsonBodySerializer();
            var json       = $@"{{ 
                                StringValue : '{stringValue}', 
                                TestEnum : '{TestEnum.Bar}',
                                NullableIntValue : {nullableIntValue},
                                DateTimeValue : '2011-12-23T13:37:00',
                                TestMessageData : 
                                {{
                                    IntValue : {intValue}
                                }}
                          }}";

            var stream = new MemoryStream();
            var writer = new StreamWriter(stream);

            writer.Write(json);
            writer.Flush();
            stream.Position = 0;

            message = serializer.Deserialize(stream, typeof(TestMessage)) as TestMessage;
        }