def test_fifty_minutes(self):
self.assertEqual("0:50:00", parse_time("50 minutes"))
def test_one_hour(self):
self.assertEqual("1:00:00", parse_time("1 hour"))
def test_unrecognised_units(self):
with self.assertRaises(ValueError):
parse_time("1 day 2 hours 3 minutes")
def test_wrong_tokens(self):
with self.assertRaises(ValueError):
parse_time("1")
def test_two_hours(self):
self.assertEqual("2:00:00", parse_time("2 hours"))
def test_one_hour_fifty_minutes(self):
self.assertEqual("1:50:00", parse_time("1 hour 50 minutes"))