def test_ctor_loop(self):
loop = unittest.mock.Mock()
cond = locks.Condition(loop=loop)
self.assertIs(cond._loop, loop)
cond = locks.Condition(loop=self.loop)
self.assertIs(cond._loop, self.loop)
def test_ctor_noloop(self):
try:
events.set_event_loop(self.loop)
cond = locks.Condition()
self.assertIs(cond._loop, self.loop)
finally:
events.set_event_loop(None)
def test_wait_for_unacquired(self):
cond = locks.Condition(loop=self.loop)
# predicate can return true immediately
res = self.loop.run_until_complete(cond.wait_for(lambda: [1, 2, 3]))
self.assertEqual([1, 2, 3], res)
self.assertRaises(RuntimeError, self.loop.run_until_complete,
cond.wait_for(lambda: False))
def test_context_manager_no_yield(self):
cond = locks.Condition(loop=self.loop)
try:
with cond:
self.fail('RuntimeError is not raised in with expression')
except RuntimeError as err:
self.assertEqual(
str(err),
'"yield from" should be used as context manager expression')
def test_wait_cancel(self):
cond = locks.Condition(loop=self.loop)
self.loop.run_until_complete(cond.acquire())
wait = tasks.Task(cond.wait(), loop=self.loop)
self.loop.call_soon(wait.cancel)
self.assertRaises(futures.CancelledError, self.loop.run_until_complete,
wait)
self.assertFalse(cond._waiters)
self.assertTrue(cond.locked())
def test_context_manager(self):
cond = locks.Condition(loop=self.loop)
@tasks.coroutine
def acquire_cond():
return (yield from cond)
with self.loop.run_until_complete(acquire_cond()):
self.assertTrue(cond.locked())
self.assertFalse(cond.locked())
def test_notify(self):
cond = locks.Condition(loop=self.loop)
result = []
@tasks.coroutine
def c1(result):
yield from cond.acquire()
if (yield from cond.wait()):
result.append(1)
cond.release()
return True
@tasks.coroutine
def c2(result):
yield from cond.acquire()
if (yield from cond.wait()):
result.append(2)
cond.release()
return True
@tasks.coroutine
def c3(result):
yield from cond.acquire()
if (yield from cond.wait()):
result.append(3)
cond.release()
return True
t1 = tasks.Task(c1(result), loop=self.loop)
t2 = tasks.Task(c2(result), loop=self.loop)
t3 = tasks.Task(c3(result), loop=self.loop)
test_utils.run_briefly(self.loop)
self.assertEqual([], result)
self.loop.run_until_complete(cond.acquire())
cond.notify(1)
cond.release()
test_utils.run_briefly(self.loop)
self.assertEqual([1], result)
self.loop.run_until_complete(cond.acquire())
cond.notify(1)
cond.notify(2048)
cond.release()
test_utils.run_briefly(self.loop)
self.assertEqual([1, 2, 3], result)
self.assertTrue(t1.done())
self.assertTrue(t1.result())
self.assertTrue(t2.done())
self.assertTrue(t2.result())
self.assertTrue(t3.done())
self.assertTrue(t3.result())
def test_repr(self):
cond = locks.Condition(loop=self.loop)
self.assertTrue('unlocked' in repr(cond))
self.assertTrue(RGX_REPR.match(repr(cond)))
self.loop.run_until_complete(cond.acquire())
self.assertTrue('locked' in repr(cond))
cond._waiters.append(unittest.mock.Mock())
self.assertTrue('waiters:1' in repr(cond))
self.assertTrue(RGX_REPR.match(repr(cond)))
cond._waiters.append(unittest.mock.Mock())
self.assertTrue('waiters:2' in repr(cond))
self.assertTrue(RGX_REPR.match(repr(cond)))
def test_wait_for(self):
cond = locks.Condition(loop=self.loop)
presult = False
def predicate():
return presult
result = []
@tasks.coroutine
def c1(result):
yield from cond.acquire()
if (yield from cond.wait_for(predicate)):
result.append(1)
cond.release()
return True
t = tasks.Task(c1(result), loop=self.loop)
test_utils.run_briefly(self.loop)
self.assertEqual([], result)
self.loop.run_until_complete(cond.acquire())
cond.notify()
cond.release()
test_utils.run_briefly(self.loop)
self.assertEqual([], result)
presult = True
self.loop.run_until_complete(cond.acquire())
cond.notify()
cond.release()
test_utils.run_briefly(self.loop)
self.assertEqual([1], result)
self.assertTrue(t.done())
self.assertTrue(t.result())
def test_notify_all_unacquired(self):
cond = locks.Condition(loop=self.loop)
self.assertRaises(RuntimeError, cond.notify_all)
def test_wait_unacquired(self):
cond = locks.Condition(loop=self.loop)
self.assertRaises(RuntimeError, self.loop.run_until_complete,
cond.wait())