def test_delta_previous(self): """ plus_year, plus_month = delta(date.year, date.month, 1) minus_year, minus_month = delta(date.year, date.month, -1) """ self.assertEqual(delta(2016, 2, -1), (2016, 1)) self.assertEqual(delta(2016, 1, -1), (2015, 12))
def test_delta_next(self): """ plus_year, plus_month = delta(date.year, date.month, 1) minus_year, minus_month = delta(date.year, date.month, -1) """ self.assertEqual(delta(2016, 2, 1), (2016, 3)) self.assertEqual(delta(2015, 12, 1), (2016, 1))