public void UpdateMethodUpdatesAllFields()
{
var item = GetRandomTransactionResult();
var copy = new TransactionResult
{
OrderId = item.OrderId,
};
copy.UpdateFrom(item);
var serializer = new DataContractJsonSerializer(item.GetType());
var mem1 = new MemoryStream();
var mem2 = new MemoryStream();
serializer.WriteObject(mem1, item);
serializer.WriteObject(mem2, copy);
mem1.Seek(0L, SeekOrigin.Begin);
mem2.Seek(0L, SeekOrigin.Begin);
var str1 = new StreamReader(mem1).ReadToEnd();
var str2 = new StreamReader(mem2).ReadToEnd();
Assert.AreEqual(str1, str2);
}