def test_full_time_specified(self):
self.assertEqual(add(datetime(2015, 1, 24, 22, 0)),
datetime(2046, 10, 2, 23, 46, 40))
def test_third_test_for_date_only_specification_of_time(self):
self.assertEqual(add(datetime(1959, 7, 19, 0, 0)),
datetime(1991, 3, 27, 1, 46, 40))
def test_second_test_for_date_only_specification_of_time(self):
self.assertEqual(add(datetime(1977, 6, 13, 0, 0)),
datetime(2009, 2, 19, 1, 46, 40))
def test_full_time_with_day_roll_over(self):
self.assertEqual(add(datetime(2015, 1, 24, 23, 59, 59)),
datetime(2046, 10, 3, 1, 46, 39))
def test_date_only_specification_of_time(self):
self.assertEqual(add(datetime(2011, 4, 25, 0, 0)),
datetime(2043, 1, 1, 1, 46, 40))
def test_does_not_mutate_input_dt(self):
dt = datetime(2015, 1, 24, 23, 59, 59)
add(dt)
self.assertEqual(dt, datetime(2015, 1, 24, 23, 59, 59))
