public void AddSubscriberType_Without_WithTimeToExpire_WithFakeProvider()
        {
            var subscriberInfo = new PublishSubscribeChannel<User>(new StubIStoreProvider<User>())
                .AddSubscriberType(typeof(TestSubscriberZZZ<User>));
            var pubsub = subscriberInfo.WithTimeToExpire(new TimeSpan(0, 1, 0));
            Assert.IsInstanceOfType(pubsub, typeof(PublishSubscribeChannel<User>));

            Assert.IsInstanceOfType(pubsub.GetSubscriptions()[0], typeof(ISubscriber<User>));
        }