def test_logged_lock():
lock = LoggedRLock("test", lease_expiration=1, log_interval=.2)
step1 = threading.Event()
step2 = threading.Event()
def do_lock():
with lock:
step1.set()
step2.wait()
with concurrent(do_lock):
# wait for thread to hold the lock
step1.wait()
# we'll mock the logger so we can ensure it logged
with patch("easypy.sync._logger") as _logger:
assert not lock.acquire(timeout=0.5) # below the lease_expiration
# the expiration mechanism should kick in
with pytest.raises(LockLeaseExpired):
lock.acquire()
# let other thread finish
step2.set()
with lock:
pass
assert sum(c == call("%s - waiting...", lock)
for c in _logger.debug.call_args_list) > 3
def disable_test_logged_lock_races():
lease_expiration = 1
lock = LoggedRLock("test",
lease_expiration=lease_expiration,
log_interval=.1)
import logging
def do_lock(idx):
sleep(random.random())
if lock.acquire(timeout=1, blocking=random.random() > 0.5):
logging.info("%02d: acquired", idx)
sleep(random.random() * lease_expiration * 0.9)
lock.release()
logging.info("%02d: released", idx)
else:
logging.info("%02d: timed out", idx)
with ExitStack() as stack:
for i in range(30):
stack.enter_context(concurrent(do_lock, idx=i, loop=True, sleep=0))
sleep(5)