public void testCompareTo() {
DateTime test1 = new DateTime(TEST_TIME1);
DateTime test1a = new DateTime(TEST_TIME1);
assertEquals(0, test1.compareTo(test1a));
assertEquals(0, test1a.compareTo(test1));
assertEquals(0, test1.compareTo(test1));
assertEquals(0, test1a.compareTo(test1a));
DateTime test2 = new DateTime(TEST_TIME2);
assertEquals(-1, test1.compareTo(test2));
assertEquals(+1, test2.compareTo(test1));
DateTime test3 = new DateTime(TEST_TIME2, GREGORIAN_PARIS);
assertEquals(-1, test1.compareTo(test3));
assertEquals(+1, test3.compareTo(test1));
assertEquals(0, test3.compareTo(test2));
assertEquals(+1, test2.compareTo(new MockInstant()));
assertEquals(0, test1.compareTo(new MockInstant()));
}
