private void AssertSerialization(DestinationFileFormat input, string expectedOutput)
        {
            var converter = new DestinationFileFormatConverter();

            using (var stringWriter = new StringWriter())
                using (var jsonWriter = new JsonTextWriter(stringWriter))
                {
                    converter.WriteJson(jsonWriter, input, null);
                    Assert.AreEqual(expectedOutput, stringWriter.ToString());
                }
        }
        public void ReadJson_is_not_implemented()
        {
            var converter = new DestinationFileFormatConverter();

            Assert.ThrowsException <NotImplementedException>(() => converter.ReadJson(null, null, null, null));
        }