public void SubscriptionWithExistingCursorGetsAllMessagesAfterMessageBusRestart() { var sp = ServiceProviderHelper.CreateServiceProvider(); using (var bus = (MessageBus)sp.GetRequiredService <IMessageBus>()) { var subscriber = new TestSubscriber(new[] { "key" }); var wh = new ManualResetEvent(false); IDisposable subscription = null; try { subscription = bus.Subscribe(subscriber, "d-key,00000001", (result, state) => { foreach (var m in result.GetMessages()) { Assert.Equal("key", m.Key); Assert.Equal("value", m.GetString()); wh.Set(); } return(TaskAsyncHelper.True); }, 10, null); bus.Publish("test", "key", "value"); Assert.True(wh.WaitOne(TimeSpan.FromSeconds(5))); } finally { if (subscription != null) { subscription.Dispose(); } } } }
public void SubscribingTopicAfterNoSubscriptionsStateSetsStateToHasSubscription() { var sp = ServiceProviderHelper.CreateServiceProvider(services => { services.Configure <MessageBusOptions>(options => { options.TopicTTL = TopicTtl(TimeSpan.FromSeconds(6)); }); }); using (var bus = (MessageBus)sp.GetRequiredService <IMessageBus>()) { var subscriber = new TestSubscriber(new[] { "key" }); // Make sure the topic is in the no subs state bus.Subscribe(subscriber, null, (result, state) => TaskAsyncHelper.True, 10, null) .Dispose(); Topic topic = bus.SubscribeTopic("key"); Assert.Equal(1, bus.Topics.Count); Assert.True(bus.Topics.TryGetValue("key", out topic)); Assert.Equal(TopicState.HasSubscriptions, topic.State); } }
public void MultipleSubscribeTopicCallsToDeadTopicWork() { var sp = ServiceProviderHelper.CreateServiceProvider(services => { services.Configure <MessageBusOptions>(options => { options.TopicTTL = TopicTtl(TimeSpan.FromSeconds(6)); }); }); Topic topic; using (var bus = ActivatorUtilities.CreateInstance <TestMessageBus>(sp)) { var subscriber = new TestSubscriber(new[] { "key" }); int count = 0; // Make sure the topic is in the no subs state bus.Subscribe(subscriber, null, (result, state) => TaskAsyncHelper.True, 10, null) .Dispose(); bus.BeforeTopicCreated = (key) => { bus.Topics.TryGetValue(key, out topic); if (count == 1) { // Should have been removed by our double garbage collect in BeforeTopicMarked Assert.Null(topic); } if (count == 3) { // Ensure that we have a topic now created from the original thread Assert.NotNull(topic); } }; bus.BeforeTopicMarked = (key, t) => { count++; if (count == 1) { bus.GarbageCollectTopics(); bus.GarbageCollectTopics(); // We garbage collect twice to mark the current topic as dead (it will remove it from the topics list) Assert.Equal(t.State, TopicState.Dead); bus.SubscribeTopic("key"); // Topic should still be dead Assert.Equal(t.State, TopicState.Dead); Assert.Equal(count, 2); // Increment up to 3 so we don't execute same code path in after marked count++; } if (count == 2) { // We've just re-created the topic from the second bus.SubscribeTopic so we should have 0 subscriptions Assert.Equal(t.State, TopicState.NoSubscriptions); } if (count == 4) { // Ensure that we pulled the already created subscription (therefore it has subscriptions) Assert.Equal(t.State, TopicState.HasSubscriptions); } }; bus.AfterTopicMarked = (key, t, state) => { if (count == 2) { // After re-creating the topic from the second bus.SubscribeTopic we should then move the topic state // into the has subscriptions state Assert.Equal(state, TopicState.HasSubscriptions); } if (count == 3) { Assert.Equal(state, TopicState.Dead); } }; bus.SubscribeTopic("key"); Assert.Equal(1, bus.Topics.Count); Assert.True(bus.Topics.TryGetValue("key", out topic)); Assert.Equal(TopicState.HasSubscriptions, topic.State); } }