def test_advance_hour_rollover_48(self):
"""Test that hour advances by 48 (2 days) which should leave it back where it started"""
clock = Clock()
clock.advance_hour(48)
# you can change to 00 for your tests if you would like!
self.assertEqual("0:0:0", clock.__str__(),
"advance hour from 0 by 48 back to 0 did not work")
def test_advance_hour_negative(self):
"""Advance hour with negative value which should raise a ValueError"""
clock = Clock()
try:
clock.advance_hour(-1)
self.assertEqual(
True, False,
"exception not thrown for advance hour value of -1")
except ValueError as value_error:
self.assertEqual(True, True)
def test_advance_hour_no_rollover(self):
"""Simple advance hour test that does not roll over to new set of hours"""
clock = Clock()
clock.advance_hour(23)
self.assertEqual("23:0:0", clock.__str__(),
"advance hour from 0 to 23 did not work")
