def test_time_period_from_date(self, fixture):
start, when, resolution, result, date = fixture
start_date = helpers.parse_isodate(start)
when_date = helpers.parse_isodate(when)
if result is throws:
with self.assertRaises(ValueError):
TimePeriod.from_date(start_date, resolution, when_date)
else:
tp_date = helpers.parse_isodate(date)
exp = TimePeriod(resolution, result, tp_date)
self.assertEqual(TimePeriod.from_date(start_date, resolution, when_date), exp)
