@Test
public void checkMouseWheelEvent() {
tested = false;
Button b = new Button();
b.addMouseWheelHandler(
new MouseWheelHandler() {
public void onMouseWheel(MouseWheelEvent event) {
tested = !tested;
}
});
// simule the event
mouseWheel(b);
Assert.assertTrue("onMouseWheel event was not triggered", tested);
}
