@Test
public void testSet() {

  column1.appendCell("10:15:30");
  column1.appendCell("11:30:00");
  column1.appendCell("14:00:00");
  column1.appendCell("18:15:30");
  column1.set(column1.isBeforeNoon(), LocalTime.NOON);
  assertEquals(LocalTime.NOON, column1.get(0));
  assertEquals(LocalTime.NOON, column1.get(1));
  assertNotEquals(LocalTime.NOON, column1.get(2));
  assertNotEquals(LocalTime.NOON, column1.get(3));
}