Method doit

Lib/test/test_asyncio/test_tasks.py:1833–1841

()

            await asyncio.sleep(dt)

        async def doit():
            sleeper = self.new_task(loop, sleep(5000))
            loop.call_later(0.1, sleeper.cancel)
            try:
                await sleeper
            except asyncio.CancelledError:
                return 'cancelled'
            else:
                return 'slept in'

        doer = doit()
        self.assertEqual(loop.run_until_complete(doer), 'cancelled')