@DoNotRunWith(Platform.HtmlUnitBug)
 public void testAccessors() {
   DateBox db = new DateBox();
   assertFalse(db.isDatePickerShowing());
   db.showDatePicker();
   assertTrue(db.isDatePickerShowing());
   db.hideDatePicker();
   assertFalse(db.isDatePickerShowing());
 }