public async Task EventBus_Should_Invoke_Event_Handlers_Implicit_Topic()
{
// Create handlers
var state = new FakeState {
Data = "A"
};
var fakeHandler1 = new FakeEventHandler1(state);
var fakeHandler2 = new FakeEventHandler2(state);
// Create message broker
var messageBroker = new FakeMessageBroker();
messageBroker.Subscribe(fakeHandler1);
messageBroker.Subscribe(fakeHandler2);
// Create service bus
var eventBus = new FakeEventBus(messageBroker);
eventBus.Subscribe(fakeHandler1);
eventBus.Subscribe(fakeHandler2);
// Publish to service bus
var @event = new FakeIntegrationEvent("B");
await eventBus.PublishAsync(@event);
// Assert
Assert.Equal(@event.CreationDate, state.Date);
Assert.Equal("B", state.Data);
}
public async Task EventBus_Should_Invoke_Event_Handlers(TopicType topicType, string prefix)
{
// Topic name
var topicName = topicType == TopicType.Explicit ? "my-topic" : null;
// Create handlers
var state = new FakeState {
Data = "A"
};
var fakeHandler1 = new FakeEventHandler1(state);
var fakeHandler2 = new FakeEventHandler2(state);
// Create message broker
var messageBroker = new FakeMessageBroker();
messageBroker.Subscribe(fakeHandler1, topicName, prefix);
messageBroker.Subscribe(fakeHandler2, topicName, prefix);
// Create service bus
var eventBus = new FakeEventBus(messageBroker);
eventBus.Subscribe(fakeHandler1, topicName, prefix);
eventBus.Subscribe(fakeHandler2, topicName, prefix);
// Publish to service bus
var @event = new FakeIntegrationEvent("B");
await eventBus.PublishAsync(@event, topicName, prefix);
// Assert
Assert.Equal(@event.CreationDate, state.Date);
Assert.Equal("B", state.Data);
}
public void EventBus_Should_Remove_Event_Handlers(TopicType topicType, string prefix)
{
// Topic name
var topicName = topicType == TopicType.Explicit ? "my-topic" : null;
// Create handlers
var state = new FakeState {
Data = "A"
};
var fakeHandler1 = new FakeEventHandler1(state);
var fakeHandler2 = new FakeEventHandler2(state);
// Create message broker
var messageBroker = new FakeMessageBroker();
messageBroker.Subscribe(fakeHandler1, topicName, prefix);
messageBroker.Subscribe(fakeHandler2, topicName, prefix);
// Create service bus
var eventBus = new FakeEventBus(messageBroker);
eventBus.Subscribe(fakeHandler1, topicName, prefix);
eventBus.Subscribe(fakeHandler2, topicName, prefix);
// Remove handler
eventBus.UnSubscribe(fakeHandler1, topicName, prefix);
// Assert
Assert.Single(eventBus.Topics);
Assert.Single(eventBus.Topics.First().Value);
// Remove handler
eventBus.UnSubscribe(fakeHandler2, topicName, prefix);
// Assert
Assert.Empty(eventBus.Topics);
}