def test_callback_deadlock(self):
flag = threading.Event()
# try waiting for the future from the callback
fut = FluxExecutorFuture(threading.get_ident()).add_jobid_callback(
lambda fut: (fut.result(), flag.set())
)
fut._set_jobid(5)
# check that flag wasn't set---because the callback raised
self.assertFalse(flag.is_set())
# try the same with an event callback
log_event = EventLogEvent({"name": "debug", "timestamp": 0})
fut.add_event_callback(
log_event.name, lambda fut, event: (fut.result(), flag.set())
)
fut._set_event(log_event)
self.assertFalse(flag.is_set())
# now complete the future and try again
fut.set_result(21)
fut.add_jobid_callback(lambda fut: (fut.result(), flag.set()))
self.assertTrue(flag.is_set())
flag.clear()
fut.add_event_callback(
log_event.name, lambda fut, event: (fut.result(), flag.set())
)
self.assertTrue(flag.is_set())
def test_jobid_callback(self):
fut = FluxExecutorFuture(threading.get_ident())
flag = threading.Event()
fut.add_jobid_callback(lambda f: flag.set())
self.assertFalse(flag.is_set())
fut._set_jobid(5)
self.assertTrue(flag.is_set())
# now check that adding callbacks fires them immediately
flag.clear()
fut.add_jobid_callback(lambda f: flag.set())
self.assertTrue(flag.is_set())