def test_wrong_release(self):
lock = SemLock()
with self.assertRaisesRegexp(Exception, "release unlocked lock"):
lock.release()
lock.acquire()
lock.release()
with self.assertRaisesRegexp(Exception, "release unlocked lock"):
lock.release()
def test_acquire(self):
lock = SemLock()
lock.acquire()
t1 = threading.Thread(target=lock.acquire)
t1.start()
t2 = threading.Thread(target=lock.acquire)
t2.start()
time.sleep(1)
lock.release()
time.sleep(1)
lock.release()
t1.join()
t2.join()
