public void Can_publish_events_by_type()
{
var handled = 0;
var hub = new Hub();
hub.Subscribe <InheritedEvent>(e => handled++);
object @event = new InheritedEvent {
Id = 123, Value = "ABC"
};
var sent = hub.Publish(@event);
Assert.True(sent, "did not send event to a known subscription");
Assert.Equal(1, handled);
}
public void Can_handle_error_with_callback()
{
var errors = 0;
var hub = new Hub();
var sent = false;
// SubscribeWithDelegate:
{
hub.Subscribe <InheritedEvent>(e => { throw new Exception(); }, ex => { errors++; });
object @event = new InheritedEvent {
Id = 123, Value = "ABC"
};
sent = hub.Publish(@event);
Assert.False(sent, "publishing a failed event should bubble as false to the publish result");
Assert.Equal(1, errors);
}
// SubscribeWithDelegateAndTopic:
{
hub.Subscribe <StringEvent>(se => { throw new Exception(); }, @event => @event.Text == "bababooey!",
ex => { errors++; });
sent = hub.Publish(new StringEvent("not bababooey!"));
Assert.False(sent);
Assert.Equal(1, errors);
sent = hub.Publish(new StringEvent("bababooey!"));
Assert.False(sent);
Assert.Equal(2, errors);
}
// Subscribe (manifold):
{
var handler = new ManifoldHierarchicalEventHandler();
hub.Subscribe(handler, ex => { errors++; });
sent = hub.Publish(new ErrorEvent());
Assert.False(sent);
Assert.Equal(3, errors);
}
// SubscribeWithInterface:
{
hub.Subscribe(new ErroringHandler());
sent = hub.Publish(new ErrorEvent());
Assert.False(sent);
Assert.Equal(4, errors);
}
}