// -----------------------------------------------------------------------
 public void testContains_long() {
   MutableInterval test = new MutableInterval(TEST_TIME1, TEST_TIME2);
   assertEquals(true, test.contains(TEST_TIME1));
   assertEquals(false, test.contains(TEST_TIME1 - 1));
   assertEquals(true, test.contains(TEST_TIME1 + (TEST_TIME2 - TEST_TIME1) / 2));
   assertEquals(false, test.contains(TEST_TIME2));
   assertEquals(true, test.contains(TEST_TIME2 - 1));
 }
 public void testContains_RI() {
   MutableInterval test = new MutableInterval(TEST_TIME1, TEST_TIME2);
   assertEquals(true, test.contains(new Instant(TEST_TIME1)));
   assertEquals(false, test.contains(new Instant(TEST_TIME1 - 1)));
   assertEquals(true, test.contains(new Instant(TEST_TIME1 + (TEST_TIME2 - TEST_TIME1) / 2)));
   assertEquals(false, test.contains(new Instant(TEST_TIME2)));
   assertEquals(true, test.contains(new Instant(TEST_TIME2 - 1)));
   assertEquals(true, test.contains((ReadableInstant) null));
 }