@Test
public void testCompareInvolvingNullTime() {

	Appt a1 = new Appt(LocalDate.of(2020,11,4), null, "Vote");
	Appt a2 = new Appt(2020,11,4,9,00, "Vote");
	assertTrue(a1.compareTo(a2) < 0);
	
	Appt b1 = new Appt(LocalDate.of(2020,11,4), null, "Vote");
	Appt b2 = new Appt(LocalDate.of(2020,11,4), null, "Go Vote");
	assertTrue(b1.compareTo(b2) > 0);
}