@Test
public void tesInitUI() {

    mTravelTimePicker.open(getSupportFragmentManager());
    final Dialog dialog = mTravelTimePicker.getDialog();
    assertNotNull(dialog.findViewById(R.id.picker_tab));
    assertNotNull(dialog.findViewById(R.id.travel_date));
    assertNotNull(dialog.findViewById(R.id.travel_time));
}