def test_none_value(self):
"""If timeout is None, the timer is a noop."""
mb = Mailbox()
t = send_after(None, mb, 42)
step(); assert mb._mailbox.qsize() == 0
t.reset()
t.cancel()
step(); assert mb._mailbox.qsize() == 0
def test_send(self):
mb = Mailbox()
send_after(STEP*1.5, mb, 42)
step(); assert mb._mailbox.qsize() == 0
step(); assert mb._mailbox.qsize() == 1
def test_reset(self):
mb = Mailbox()
t = send_after(STEP*1.5, mb, 42)
step(); t.reset()
step(); assert mb._mailbox.qsize() == 0
step(); assert mb._mailbox.qsize() == 1
def test_cancel_late(self):
mb = Mailbox()
t = send_after(STEP*1.5, mb, 42)
step()
step(); t.cancel()
assert mb._mailbox.qsize() == 1