def test_five_retries(self):
# (Five retries because RepeatRecord.max_possible_tries is 6)
for last_checked, now, expected_interval_hours in [
(None, fromisoformat("2020-01-01 00:00:00"), 1),
(fromisoformat("2020-01-01 00:00:00"), fromisoformat("2020-01-01 01:00:00"), 3),
(fromisoformat("2020-01-01 01:00:00"), fromisoformat("2020-01-01 04:00:00"), 9),
(fromisoformat("2020-01-01 04:00:00"), fromisoformat("2020-01-01 13:00:00"), 27),
(fromisoformat("2020-01-01 13:00:00"), fromisoformat("2020-01-02 16:00:00"), 81),
]:
interval = _get_retry_interval(last_checked, now)
self.assertEqual(interval, timedelta(hours=expected_interval_hours))
def test_three_times_interval(self):
last_checked = fromisoformat("2020-01-01 00:00:00")
now = fromisoformat("2020-01-01 01:00:00")
interval = _get_retry_interval(last_checked, now)
self.assertEqual(interval, timedelta(hours=3))
def test_max_interval(self):
last_checked = fromisoformat("2020-01-01 00:00:00")
now = fromisoformat("2020-02-01 00:00:00")
interval = _get_retry_interval(last_checked, now)
self.assertEqual(interval, MAX_RETRY_WAIT)
def test_no_last_checked(self):
last_checked = None
now = fromisoformat("2020-01-01 00:05:00")
interval = _get_retry_interval(last_checked, now)
self.assertEqual(interval, MIN_RETRY_WAIT)
