def test_cron_clock_hourly_daylight_savings_time_backward(self, serialize): """ 11/4/2018, at 2am, America/New_York switched clocks back an hour. """ dt = pendulum.datetime(2018, 11, 3, 23, tz="America/New_York") c = clocks.CronClock("0 * * * *", dt) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # repeat the 1am run in local time assert [t.in_tz("America/New_York").hour for t in next_4] == [0, 1, 2, 3] # runs every hour UTC assert [t.in_tz("UTC").hour for t in next_4] == [4, 6, 7, 8]
def test_cron_clock_hourly_daylight_savings_time_forward(self, serialize): """ On 3/11/2018, at 2am, America/New_York switched clocks forward an hour. """ dt = pendulum.datetime(2018, 3, 10, 23, tz="America/New_York") c = clocks.CronClock("0 * * * *", dt) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # skip 2am assert [t.in_tz("America/New_York").hour for t in next_4] == [0, 1, 3, 4] # constant hourly schedule in utc time assert [t.in_tz("UTC").hour for t in next_4] == [5, 6, 7, 8]
def test_cron_clock_daily_start_daylight_savings_time_backward(self, serialize): """ On 11/4/2018, at 2am, America/New_York switched clocks back an hour. Confirm that a schedule for 9am America/New_York stays 9am through the switch. """ dt = pendulum.datetime(2018, 11, 1, 9, tz="America/New_York") c = clocks.CronClock("0 9 * * *", dt) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # constant 9am start assert [t.in_tz("America/New_York").hour for t in next_4] == [9, 9, 9, 9] assert [t.in_tz("UTC").hour for t in next_4] == [13, 13, 14, 14]
def test_interval_clock_daily_start_daylight_savings_time_forward(self, serialize): """ On 3/11/2018, at 2am, America/New_York switched clocks forward an hour. Confirm that a schedule for 9am America/New_York stays 9am through the switch. """ dt = pendulum.datetime(2018, 3, 8, 9, tz="America/New_York") c = clocks.IntervalClock(timedelta(days=1), start_date=dt) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # constant 9am start assert [t.in_tz("America/New_York").hour for t in next_4] == [9, 9, 9, 9] # utc time shifts assert [t.in_tz("UTC").hour for t in next_4] == [14, 14, 13, 13]
def test_interval_clock_hourly_daylight_savings_time_backward(self, serialize): """ 11/4/2018, at 2am, America/New_York switched clocks back an hour. """ dt = pendulum.datetime(2018, 11, 3, 23, tz="America/New_York") c = clocks.IntervalClock(timedelta(hours=1), start_date=dt) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # repeat the 1am run in local time assert [t.start_time.in_tz("America/New_York").hour for t in next_4] == [ 0, 1, 1, 2, ] # runs every hour UTC assert [t.start_time.in_tz("UTC").hour for t in next_4] == [4, 5, 6, 7]
def test_interval_clock_hourly_daylight_savings_time_forward_with_UTC( self, serialize ): """ On 3/11/2018, at 2am, America/New_York switched clocks forward an hour. """ dt = pendulum.datetime(2018, 3, 10, 23, tz="America/New_York") c = clocks.IntervalClock(timedelta(hours=1), start_date=dt.in_tz("UTC")) if serialize: c = ClockSchema().load(ClockSchema().dump(c)) next_4 = islice(c.events(after=dt), 4) # skip 2am assert [t.start_time.in_tz("America/New_York").hour for t in next_4] == [ 0, 1, 3, 4, ] # constant hourly schedule in utc time assert [t.start_time.in_tz("UTC").hour for t in next_4] == [5, 6, 7, 8]