class TestClass(unittest.TestCase):
def setUp(self):
self.time = Time("08:00", "%H:%M")
def test(self):
# copy method
new_instance = self.time.copy()
self.assertIsInstance(new_instance, Time)
self.assertEqual(new_instance, self.time)
# change_to method
new_time = "08:01"
new_instance.change_to(new_time)
self.assertEqual(str(new_instance), new_time)
# add_time method
new_instance.add_time(1, 1)
self.assertEqual(str(new_instance), "09:02")
new_instance.add_time(-10, -3)
self.assertEqual(str(new_instance), "22:59")
# time_difference method
hours, minutes = self.time.time_difference(new_instance)
self.assertEqual((hours, minutes), (14, 59))
# str method
self.assertEqual(str(self.time), "08:00")
