def test_channel(self):
chan = SlidingChannel()
chan.put(1)
chan.process()
chan.put(2)
chan.process()
chan.put(3)
chan.process()
prom = chan.get()
chan.process()
self.assertEqual(prom.value, 3)
def test_channel_with_limit(self):
chan = SlidingChannel(limit=5)
def _and_process(x):
process_all()
return x
put_proms = [_and_process(chan.put(x)) for x in range(10)]
get_proms = [_and_process(chan.get()) for _ in range(10)]
for n, prom in enumerate(put_proms):
process_all()
self.assertTrue(prom.delivered)
self.assertTrue(prom.value)
for n, prom in enumerate(get_proms):
if n > 4:
self.assertFalse(prom.delivered)
else:
self.assertTrue(prom.delivered)
self.assertEqual(prom.value, n + 5)