assertEquals("four", fooReceiver.secondExtraParam);
Element nameSpan = UiRendererUi.getRenderer().getNameSpan(uiRoot);
NativeEvent eventAtNameSpan = createMockNativeEvent(nameSpan, "click");
fooReceiver = new MockFooReceiver();
UiRendererUi.getRenderer().onBrowserEvent(barReceiver, eventAtNameSpan, uiRoot, new Bar(5), 6);
assertEquals(1, barReceiver.handlerCalled);
assertEquals("click", barReceiver.event.getAssociatedType().getName());
assertEquals(uiRoot, barReceiver.root);
assertEquals(5, barReceiver.firstExtraParam.baz.intValue());