def test_start_of_yesterday_with_datetime(self):
dt = datetime(year=2016, month=2, day=29, hour=22, minute=33, second=9)
expected_dt = datetime(year=2016, month=2, day=28,
hour=0, minute=0, second=0, microsecond=0)
self.assertEqual(start_of_yesterday(dt), expected_dt)
def test_start_of_yesterday_with_date(self):
d = date(year=2016, month=1, day=1)
expected_dt = datetime(year=2015, month=12, day=31,
hour=0, minute=0, second=0, microsecond=0)
self.assertEqual(start_of_yesterday(d), expected_dt)
