public void EnumSerializerIsValid()
{
EnumConverter <HttpStatusCode> converter = new EnumConverter <HttpStatusCode>();
HttpStatusCode code = HttpStatusCode.NotFound;
StringBuilder stringBuilder = new StringBuilder();
converter.AppendToStringBuilder(stringBuilder, CultureInfo.InvariantCulture, code, null, ',');
string serialized = stringBuilder.ToString();
serialized.Should().Be("NotFound");
}