public void OldToNew()
        {
            OldRemoveSubscription oldMsg;

            using (var str = File.OpenRead(_pathToFile))
            {
                var o = PlainFormatter.Deserialize(str);
                oldMsg = Factory.ConvertToNewRemoveSubscription(o);
            }
            Assert.AreEqual(new Uri("http://bob/phil"), oldMsg.Subscription.EndpointUri);
        }
        public void OldToNew()
        {
            OldCancelSubscriptionUpdates oldMsg;

            using (var str = File.OpenRead(_pathToFile))
            {
                var o = PlainFormatter.Deserialize(str);
                oldMsg = Factory.ConvertToNewCancelSubscriptionUpdates(o);
            }
            Assert.AreEqual(new Uri("http://bob/phil"), oldMsg.RequestingUri);
        }