def test_event_loop_post_dispatch_check():
callback = _GetCallback()
event_loop = EventLoop()
r, w = os.pipe()
try:
source = event_loop.add_fd(r, _fd_callback,
EventLoop.FdMask.WL_EVENT_READABLE,
callback)
source.check()
event_loop.dispatch(0)
assert callback.callback == r
finally:
os.close(r)
os.close(w)
def test_event_loop_signal():
callback = _GetCallback()
event_loop = EventLoop()
event_loop.add_signal(signal.SIGUSR1, _signal_callback, callback)
event_loop.dispatch(0)
assert callback.callback is None
os.kill(os.getpid(), signal.SIGUSR1)
event_loop.dispatch(0)
assert callback.callback == signal.SIGUSR1
def test_event_loop_timer_updates():
callback = _GetCallback()
event_loop = EventLoop()
source1 = event_loop.add_timer(_timer_update_callback1, callback)
source1.timer_update(10)
source2 = event_loop.add_timer(_timer_update_callback2, callback)
source2.timer_update(10)
callback.source1 = source1
callback.source2 = source2
assert callback.n_calls == 0
# Wait 15 ms, so both timers should be called when we dispatch
time.sleep(0.015)
# This should take < 1 sec
start_time = time.time()
event_loop.dispatch(20)
end_time = time.time()
assert callback.n_calls == 2
assert end_time - start_time < 1
def test_event_loop_timer():
callback = _GetCallback()
event_loop = EventLoop()
source = event_loop.add_timer(_timer_callback, callback)
source.timer_update(10)
event_loop.dispatch(0)
assert callback.n_calls == 0
event_loop.dispatch(20)
assert callback.n_calls == 1
def test_event_loop_destroy():
global a, b
a = False
b = False
event_loop = EventLoop()
listener_a = Listener(_destroy_notify_a)
listener_b = Listener(_destroy_notify_b)
event_loop.add_destroy_listener(listener_a)
event_loop.add_destroy_listener(listener_b)
listener_a.remove()
event_loop.destroy()
import gc
gc.collect()
assert a is False
assert b is True
def test_event_loop_multiple_same_signals():
callback = _GetCallback()
event_loop = EventLoop()
signal_rm = event_loop.add_signal(signal.SIGUSR1, _signal_callback,
callback)
event_loop.add_signal(signal.SIGUSR1, _signal_callback, callback)
event_loop.dispatch(0)
assert callback.n_calls == 0
# Check callback gets 2 calls
for _ in range(5):
callback.n_calls = 0
os.kill(os.getpid(), signal.SIGUSR1)
event_loop.dispatch(0)
assert callback.n_calls == 2
# Remove one of the signals
signal_rm.remove()
# Callback only gets call now
for _ in range(5):
callback.n_calls = 0
os.kill(os.getpid(), signal.SIGUSR1)
event_loop.dispatch(0)
assert callback.n_calls == 1