def test_does_not_add_action_on_start(self):
w = DeferWaiter()
times = []
def action():
times.append(self.reactor.seconds())
h = RepeatedActionHandler(self.reactor, w, 1, action)
self.reactor.advance(2)
h.stop()
self.assertEqual(len(times), 0)
d = w.wait()
self.assertTrue(d.called)
yield d
def test_waiter_waits_for_action_timer_starts(self, name,
timer_after_action):
w = DeferWaiter()
times = []
@defer.inlineCallbacks
def action():
times.append(round(self.reactor.seconds(), 1))
yield asyncSleep(0.5, reactor=self.reactor)
h = RepeatedActionHandler(
self.reactor,
w,
1,
action,
start_timer_after_action_completes=timer_after_action)
h.start()
self.reactor.pump([0.1] * 12)
self.assertEqual(times, [1.1])
d = w.wait()
self.assertFalse(d.called)
h.stop()
self.assertFalse(d.called)
self.reactor.pump([0.1] * 5) # action started on 1.1, will end at 1.6
self.assertTrue(d.called)
yield d
def test_runs_action_with_timer_delay(self, name, timer_after_action,
expected_times):
w = DeferWaiter()
times = []
@defer.inlineCallbacks
def action():
times.append(round(self.reactor.seconds(), 1))
yield asyncSleep(0.5, reactor=self.reactor)
h = RepeatedActionHandler(
self.reactor,
w,
1,
action,
start_timer_after_action_completes=timer_after_action)
h.start()
self.reactor.pump([0.1] * 47)
self.assertEqual(times, expected_times)
h.stop()
d = w.wait()
self.assertTrue(d.called)
yield d
def test_runs_action_after_exception_with_timer(self, name,
timer_after_action):
w = DeferWaiter()
times = []
def action():
times.append(round(self.reactor.seconds(), 1))
if len(times) == 2:
raise TestException()
h = RepeatedActionHandler(
self.reactor,
w,
1,
action,
start_timer_after_action_completes=timer_after_action)
h.start()
self.reactor.pump([0.1] * 35)
self.assertEqual(times, [1.1, 2.1, 3.1])
h.stop()
d = w.wait()
self.assertTrue(d.called)
self.flushLoggedErrors(TestException)
yield d
def test_can_update_interval(self):
w = DeferWaiter()
times = []
def action():
times.append(round(self.reactor.seconds(), 1))
h = RepeatedActionHandler(self.reactor, w, 1, action)
h.start()
self.reactor.pump([0.1] * 15)
h.setInterval(2)
self.reactor.pump([0.1] * 50)
self.assertEqual(times, [1.1, 2.1, 4.1, 6.2])
h.stop()
d = w.wait()
self.assertTrue(d.called)
yield d
def test_ignores_duplicate_start_or_stop(self):
w = DeferWaiter()
times = []
def action():
times.append(round(self.reactor.seconds(), 1))
h = RepeatedActionHandler(self.reactor, w, 1, action)
h.start()
h.start()
self.reactor.pump([0.1] * 35)
self.assertEqual(times, [1.1, 2.1, 3.1])
h.stop()
h.stop()
d = w.wait()
self.assertTrue(d.called)
yield d
