public void NullSource()
{
EventBrokerService service = new EventBrokerService();
SpyEventSource source = new SpyEventSource();
EventInfo sourceEvent = source.GetType().GetEvent("MySource");
Assert.Throws <ArgumentNullException>(delegate
{
service.RegisterSource(null, sourceEvent, "MyEvent");
});
}
public void UnregisterSourceUnwiresHandler()
{
EventBrokerService service = new EventBrokerService();
SpyEventSource source = new SpyEventSource();
EventInfo sourceEvent = source.GetType().GetEvent("MySource");
service.RegisterSource(source, sourceEvent, "MyEvent");
service.UnregisterSource(source, "MyEvent");
Assert.False(source.HasHandlers);
}
public void RegistrationSourceFirst()
{
EventBrokerService service = new EventBrokerService();
SpyEventSource source = new SpyEventSource();
SpyEventSink sink = new SpyEventSink();
EventInfo sourceEvent = source.GetType().GetEvent("MySource");
MethodInfo sinkMethod = sink.GetType().GetMethod("MySink");
service.RegisterSource(source, sourceEvent, "MyEvent");
service.RegisterSink(sink, sinkMethod, "MyEvent");
source.InvokeMySource();
Assert.Equal(source.SourceText, sink.EventValue);
}
public void UnregisterSinkUnwiresHandler()
{
EventBrokerService service = new EventBrokerService();
SpyEventSource source = new SpyEventSource();
SpyEventSink sink = new SpyEventSink();
EventInfo sourceEvent = source.GetType().GetEvent("MySource");
MethodInfo sinkMethod = sink.GetType().GetMethod("MySink");
service.RegisterSource(source, sourceEvent, "MyEvent");
service.RegisterSink(sink, sinkMethod, "MyEvent");
service.UnregisterSink(sink, "MyEvent");
source.InvokeMySource();
Assert.False(sink.WasCalled);
}
public void ExceptionsAreCollectedAndRethrown()
{
EventBrokerService service = new EventBrokerService();
SpyEventSource source = new SpyEventSource();
ExceptionThrowingSink sink1 = new ExceptionThrowingSink();
ExceptionThrowingSink sink2 = new ExceptionThrowingSink();
EventInfo sourceEvent = source.GetType().GetEvent("MySource");
MethodInfo sinkMethod = sink1.GetType().GetMethod("MySink");
service.RegisterSink(sink1, sinkMethod, "MyEvent");
service.RegisterSink(sink2, sinkMethod, "MyEvent");
service.RegisterSource(source, sourceEvent, "MyEvent");
EventBrokerException ex =
Assert.Throws <EventBrokerException>(delegate
{
source.InvokeMySource();
});
Assert.Equal(2, ex.Exceptions.Count);
}