public async Task Should_register_multiple_Events_and_multiple_EventHandlers_for_each_Event_and_post_one_new_Event()
{
// Given
IEventBus eventBus = new EventBus();
var e = new MultiplyEvent {
Value1 = 2, Multiplier = 3
};
var e2 = new SubtractEvent {
Value = 100
};
eventBus.Register <MultiplyEvent, MultiplyEventHandler>();
eventBus.Register <MultiplyEvent, MultiplyEventHandler2>();
eventBus.Register <SubtractEvent, SubtractEventHandler>();
eventBus.Register <SubtractEvent, SubtractEventHandler2>();
// When
await eventBus.PostAsync(e);
await eventBus.PostAsync(e2);
// Then
e.Value1.ShouldBe(600);
e2.Value.ShouldBe(75);
}
public void Should_throw_error_when_registering_the_same_EventHandler_twice()
{
// Given
IEventBus eventBus = new EventBus();
var e = new MultiplyEvent {
Value1 = 2, Multiplier = 3
};
eventBus.Register <MultiplyEvent, MultiplyEventHandler>();
// When and Then
Assert.Throws <ArgumentException>(() => eventBus.Register <MultiplyEvent, MultiplyEventHandler>());
}
public async Task Should_register_one_Event_and_one_EventHandler_and_post_one_new_Event()
{
// Given
IEventBus eventBus = new EventBus();
var e = new MultiplyEvent {
Value1 = 2, Multiplier = 3
};
eventBus.Register <MultiplyEvent, MultiplyEventHandler>();
// When
await eventBus.PostAsync(e);
// Then
e.Value1.ShouldBe(6);
}
public async Task Should_register_EventHandlers_from_assembly_and_post_one_new_Event()
{
// Given
IEventBus eventBus = new EventBus();
var e = new MultiplyEvent {
Value1 = 2, Multiplier = 3
};
// Assembly from which all the EventHandlers should be registered.
var assembly = GetType().Assembly;
// When
eventBus.RegisterAll(assembly);
await eventBus.PostAsync(e);
// Then
e.Value1.ShouldBe(600);
}
public async Task Should_register_one_Event_and_multiple_EventHandlers_and_post_the_same_Event_few_times()
{
// Given
IEventBus eventBus = new EventBus();
var e = new MultiplyEvent {
Value1 = 2, Multiplier = 3
};
eventBus.Register <MultiplyEvent, MultiplyEventHandler>();
// When
await eventBus.PostAsync(e);
await eventBus.PostAsync(e);
await eventBus.PostAsync(e);
// Then
e.Value1.ShouldBe(54);
}
