def test_multiple_threads(self):
lock = TimeoutableLock()
class Foo:
pass
counter = Foo()
counter.assert_count = 0
def start_and_join(thread_count):
threads = [
AcquireHoldRelease(lock, 0.1, 0.3, counter)
for _ in range(thread_count)
]
for thread in threads:
thread.start()
for thread in threads:
thread.join()
start_and_join(3)
self.failIf(counter.assert_count)
start_and_join(4)
self.assertEqual(counter.assert_count, 1)
start_and_join(3)
self.assertEqual(counter.assert_count, 1)
def test_blocking_acquire(self):
lock = TimeoutableLock()
self.assert_(lock.acquire())
t = AcquireWithTimeout(lock, None)
t.start()
lock.release()
t.join()
self.failIf(lock.acquire(False))
def test_acquire_early(self):
lock = TimeoutableLock()
self.assert_(lock.acquire())
t = AcquireWithTimeout(lock, 10)
before = time.time()
t.start()
lock.release()
t.join()
self.assert_(time.time() - before < 1)
self.failIf(lock.acquire(False))
def test_basic(self):
lock = TimeoutableLock()
self.assert_(lock.acquire())
self.failIf(lock.acquire(False))
lock.release()
self.assert_(lock.acquire())
lock.release()
self.assertRaises(RuntimeError, lock.release)
def test_timeout(self):
lock = TimeoutableLock()
self.assert_(lock.acquire())
before = time.time()
self.failIf(lock.acquire(timeout=0.25))
self.assertAlmostEqual(0.25, time.time() - before, 1)