@Test
public void test_canRemoveFormItemClickHandlerWithHandlerRegistration() {
final FormItemClickHandler handler = mock(FormItemClickHandler.class);
final HandlerRegistration registration = formItemIcon.addFormItemClickHandler(handler);
registration.removeHandler();
assertFalse(formItemIcon.getFormItemClickHandlers().contains(handler));
}
@Test
public void test_canAddFormItemIconClickHandler() {
final FormItemClickHandler handler = mock(FormItemClickHandler.class);
formItemIcon.addFormItemClickHandler(handler);
assertTrue(formItemIcon.getFormItemClickHandlers().contains(handler));
}