def test_ctor_loop(self):
loop = unittest.mock.Mock()
ev = locks.Event(loop=loop)
self.assertIs(ev._loop, loop)
ev = locks.Event(loop=self.loop)
self.assertIs(ev._loop, self.loop)
def test_clear_with_waiters(self):
ev = locks.Event(loop=self.loop)
result = []
@tasks.coroutine
def c1(result):
if (yield from ev.wait()):
result.append(1)
return True
t = tasks.Task(c1(result), loop=self.loop)
test_utils.run_briefly(self.loop)
self.assertEqual([], result)
ev.set()
ev.clear()
self.assertFalse(ev.is_set())
ev.set()
ev.set()
self.assertEqual(1, len(ev._waiters))
test_utils.run_briefly(self.loop)
self.assertEqual([1], result)
self.assertEqual(0, len(ev._waiters))
self.assertTrue(t.done())
self.assertTrue(t.result())
def test_ctor_noloop(self):
try:
events.set_event_loop(self.loop)
ev = locks.Event()
self.assertIs(ev._loop, self.loop)
finally:
events.set_event_loop(None)
def test_blocking_put_wait(self):
def gen():
when = yield
self.assertAlmostEqual(0.01, when)
yield 0.01
loop = test_utils.TestLoop(gen)
self.addCleanup(loop.close)
q = queues.Queue(maxsize=1, loop=loop)
started = locks.Event(loop=loop)
finished = False
@tasks.coroutine
def queue_put():
nonlocal finished
started.set()
yield from q.put(1)
yield from q.put(2)
finished = True
@tasks.coroutine
def queue_get():
loop.call_later(0.01, q.get_nowait)
queue_put_task = tasks.Task(queue_put(), loop=loop)
yield from started.wait()
self.assertFalse(finished)
yield from queue_put_task
self.assertTrue(finished)
loop.run_until_complete(queue_get())
self.assertAlmostEqual(0.01, loop.time())
def test_wait_cancel(self):
ev = locks.Event(loop=self.loop)
wait = tasks.Task(ev.wait(), loop=self.loop)
self.loop.call_soon(wait.cancel)
self.assertRaises(futures.CancelledError, self.loop.run_until_complete,
wait)
self.assertFalse(ev._waiters)
def test_clear(self):
ev = locks.Event(loop=self.loop)
self.assertFalse(ev.is_set())
ev.set()
self.assertTrue(ev.is_set())
ev.clear()
self.assertFalse(ev.is_set())
def test_wait(self):
ev = locks.Event(loop=self.loop)
self.assertFalse(ev.is_set())
result = []
@tasks.coroutine
def c1(result):
if (yield from ev.wait()):
result.append(1)
@tasks.coroutine
def c2(result):
if (yield from ev.wait()):
result.append(2)
@tasks.coroutine
def c3(result):
if (yield from ev.wait()):
result.append(3)
t1 = tasks.Task(c1(result), loop=self.loop)
t2 = tasks.Task(c2(result), loop=self.loop)
test_utils.run_briefly(self.loop)
self.assertEqual([], result)
t3 = tasks.Task(c3(result), loop=self.loop)
ev.set()
test_utils.run_briefly(self.loop)
self.assertEqual([3, 1, 2], result)
self.assertTrue(t1.done())
self.assertIsNone(t1.result())
self.assertTrue(t2.done())
self.assertIsNone(t2.result())
self.assertTrue(t3.done())
self.assertIsNone(t3.result())
def test_wait_on_set(self):
ev = locks.Event(loop=self.loop)
ev.set()
res = self.loop.run_until_complete(ev.wait())
self.assertTrue(res)
def test_repr(self):
ev = locks.Event(loop=self.loop)
self.assertTrue(repr(ev).endswith('[unset]>'))
ev.set()
self.assertTrue(repr(ev).endswith('[set]>'))