@Test
	public void testNoOverlap() {
		MeetingTime class1 = new MeetingTime(1, 8, 5, 1, 9, 20);
		MeetingTime class2 = new MeetingTime(1, 10, 5, 1, 11, 20);

		Assert.assertFalse(class1.overlap(class2));
		Assert.assertFalse(class2.overlap(class1)); //either order should be the same
	}