def test_noneComparator(self):
self.assertNotEqual(NoneComparator(None),
NoneComparator(datetime.datetime(1, 1, 1)))
self.assertNotEqual(NoneComparator(datetime.datetime(1, 1, 1)),
NoneComparator(None))
self.assertLess(NoneComparator(None),
NoneComparator(datetime.datetime(1, 1, 1)))
self.assertGreater(NoneComparator(datetime.datetime(1, 1, 1)),
NoneComparator(None))
self.assertLess(NoneComparator(datetime.datetime(1, 1, 1)),
NoneComparator(datetime.datetime(1, 1, 2)))
self.assertEqual(NoneComparator(datetime.datetime(1, 1, 1)),
NoneComparator(datetime.datetime(1, 1, 1)))
self.assertGreater(NoneComparator(datetime.datetime(1, 1, 2)),
NoneComparator(datetime.datetime(1, 1, 1)))
self.assertEqual(NoneComparator(None), NoneComparator(None))
def test_reverseComparisonWithNone(self):
noneInList = ["z", None, None, "q", "a", None, "v"]
sortedList = sorted(noneInList,
key=lambda x: ReverseComparator(NoneComparator(x)))
self.assertEqual(sortedList, ["z", "v", "q", "a", None, None, None])
def test_noneComparison(self):
noneInList = ["z", None, None, "q", "a", None, "v"]
sortedList = sorted(noneInList, key=lambda x: NoneComparator(x))
self.assertEqual(sortedList, [None, None, None, "a", "q", "v", "z"])