def test_timerfd_intergration():
"Check and confirm that a 0.5s timer fires roughly every 0.5s as a smoke test"
INTERVAL = 1
UPPER_BOUND = INTERVAL * 1.1
LOWER_BOUND = INTERVAL * 0.9
DELAY = 0.3
NANO_SECONDS_TO_SECONDS = 1000000000.0
t = Timer()
t.repeats(seconds=INTERVAL).update()
for i in range(5):
old_time = time()
num_events = t.wait()
new_time = time()
assert num_events == 1, "Too many events"
period = new_time - old_time
assert LOWER_BOUND < period < UPPER_BOUND, "timer fired too late or too early"
# Wait a bit and ensure that the remaining time on the timerfd gets updated
sleep(DELAY)
expected_value = INTERVAL - DELAY
next_event = t.get_current().next_event
next_event = next_event.seconds + (next_event.nano_seconds /
NANO_SECONDS_TO_SECONDS)
LOWER_BOUND = expected_value * 0.9
UPPER_BOUND = expected_value * 1.1
assert LOWER_BOUND < next_event < UPPER_BOUND, "current timer does not match what we expect after a (known) time delay"
t.close()
def test_timerfd_intergration():
"Check and confirm that a 0.5s timer fires roughly every 0.5s as a smoke test"
INTERVAL = 1
UPPER_BOUND = INTERVAL * 1.1
LOWER_BOUND = INTERVAL * 0.9
DELAY = 0.3
NANO_SECONDS_TO_SECONDS = 1000000000.0
t = Timer()
t.repeats(seconds=INTERVAL).update()
for i in range(5):
old_time = time()
num_events = t.wait()
new_time = time()
assert num_events == 1, "Too many events"
period = new_time - old_time
assert LOWER_BOUND < period < UPPER_BOUND, "timer fired too late or too early"
# Wait a bit and ensure that the remaining time on the timerfd gets updated
sleep(DELAY)
expected_value = INTERVAL - DELAY
next_event = t.get_current().next_event
next_event = next_event.seconds + (next_event.nano_seconds / NANO_SECONDS_TO_SECONDS)
LOWER_BOUND = expected_value * 0.9
UPPER_BOUND = expected_value * 1.1
assert (
LOWER_BOUND < next_event < UPPER_BOUND
), "current timer does not match what we expect after a (known) time delay"
t.close()
def test_f468afef89d():
TEST_PERIOD = 1
TIMEOUT = TEST_PERIOD * 2
# create a timer
timer = Timer()
# set the timer
timer.offset(seconds=TEST_PERIOD, nano_seconds=TEST_PERIOD)
timer.repeats(seconds=TEST_PERIOD, nano_seconds=TEST_PERIOD)
timer.update()
# ensure it fires
try:
timer.wait(TIMEOUT)
except TimeoutError:
fail("Timer did not fire")
# drain the event list
timer.read_event()
# reset and update the timer
timer.disable()
timer.update()
new_val = timer.get_current()
assert new_val.next_event == (0, 0), 'Timer offset did not get reset'
with raises(TimeoutError):
"Timer fired when is should have been disabled"
timer.wait(TIMEOUT)
def test_f468afef89d():
TEST_PERIOD = 1
TIMEOUT = TEST_PERIOD * 2
# create a timer
timer = Timer()
# set the timer
timer.offset(seconds=TEST_PERIOD, nano_seconds=TEST_PERIOD)
timer.repeats(seconds=TEST_PERIOD, nano_seconds=TEST_PERIOD)
timer.update()
# ensure it fires
try:
timer.wait(TIMEOUT)
except TimeoutError:
fail("Timer did not fire")
# drain the event list
timer.read_event()
# reset and update the timer
timer.disable()
timer.update()
new_val = timer.get_current()
assert new_val.next_event == (0, 0), 'Timer offset did not get reset'
with raises(TimeoutError):
"Timer fired when is should have been disabled"
timer.wait(TIMEOUT)
