@Test
public void stubs_forward_events_from_frontend_to_backend() {
DummyListener target = mock(DummyListener.class);
DummyListenerEventizer eventizer = new DummyListenerEventizer();
MessageSender<Event<DummyListener>> backend = eventizer.newBackend(target);
DummyListener frontend = eventizer.newFrontend(backend);
frontend.onSomething("foo", "bar");
frontend.onOther();