def test_immediate_closed(self):
ch = Channel()
ch.close()
self.assertEqual((yield put(ch, 42)), False)
def test_immediate_closed(self):
ch = Channel()
ch.close()
self.assertEqual((yield take(ch)), CLOSED)
def identity_channel(x):
ch = Channel(1)
put_then_callback(ch, x, lambda ok: ch.close())
return ch