def test_contsant_sleep(self):
time = TestingTimeFunction()
manager = TimerManager(_time_function=time)
c5 = MockCallback()
manager.add_timer(5, c5, repeat=True)
c7 = MockCallback()
manager.add_timer(7, c7, repeat=True)
c13 = MockCallback()
manager.add_timer(13, c13, repeat=True)
for time.time in xrange(100):
# manager.sleep_time() is optimal, but calling run() more often
# also works. (Here every "second")
manager.run()
if time.time == 42:
def check_time():
assert time.time == 48
one_shot = MockCallback()
manager.add_timer(6, check_time)
manager.add_timer(6, one_shot)
assert c5.nb_calls == 19
assert c7.nb_calls == 14
assert c13.nb_calls == 7
assert one_shot.nb_calls == 1
def test_many(self):
time = TestingTimeFunction()
manager = TimerManager(_time_function=time)
c5 = MockCallback()
manager.add_timer(5, c5, repeat=True)
c7 = MockCallback()
manager.add_timer(7, c7, repeat=True)
c13 = MockCallback()
manager.add_timer(13, c13, repeat=True)
nb_sleeps = 0
while 1:
time.time += manager.sleep_time()
if time.time >= 100:
break
nb_sleeps += 1
manager.run()
assert c5.nb_calls == 19
assert c7.nb_calls == 14
assert c13.nb_calls == 7
# 4 is the number of times (t = 35, 65, 70, 91) where 2 timers
# trigger at the same time.
assert nb_sleeps == (c5.nb_calls + c7.nb_calls + c13.nb_calls - 4)
def test_single_timer(self):
time = TestingTimeFunction()
manager = TimerManager(_time_function=time)
callback = MockCallback()
manager.add_timer(30, callback)
assert manager.sleep_time() == 30
assert callback.nb_calls == 0
manager.run()
assert callback.nb_calls == 0
time.time = 22
assert manager.sleep_time() == 8
manager.run()
assert callback.nb_calls == 0
time.time = 30
assert manager.sleep_time() == 0
manager.run()
assert callback.nb_calls == 1
# Timer was removed from the list
assert manager.sleep_time() == Decimal('inf')
time.time = 100
manager.run()
# not called a second time
assert callback.nb_calls == 1
def test_long_callback(self):
time = TestingTimeFunction()
manager = TimerManager(_time_function=time)
def loose_time():
time.time += 11
manager.add_timer(2, loose_time, repeat=True)
manager.run()
assert time.time == 0
time.time = 2
manager.run()
assert time.time == 13
# t = 4, 6, 8 were skipped, t = 12 is late but ready
assert manager.sleep_time() == 0
def test_single_repeating_timer(self):
time = TestingTimeFunction()
manager = TimerManager(_time_function=time)
callback = MockCallback()
manager.add_timer(30, callback, repeat=True)
assert manager.sleep_time() == 30
assert callback.nb_calls == 0
manager.run()
assert callback.nb_calls == 0
time.time = 22
assert manager.sleep_time() == 8
manager.run()
assert callback.nb_calls == 0
time.time = 30
assert manager.sleep_time() == 0
manager.run()
assert callback.nb_calls == 1
# Timer was NOT removed from the list
assert manager.sleep_time() == 30
time.time = 71
assert manager.sleep_time() == 0
manager.run()
assert callback.nb_calls == 2
assert manager.sleep_time() == 19
# "Wait" more than one interval
time.time = 200
assert manager.sleep_time() == 0
manager.run()
# Only called once more
assert callback.nb_calls == 3
# Next is at t = 21
assert manager.sleep_time() == 10