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# Test cancelling a task that is waiting on a task that just finishes.
try:
import asyncio
except ImportError:
print("SKIP")
raise SystemExit
async def sleep_task():
print("sleep_task sleep")
await asyncio.sleep(0)
print("sleep_task wake")
async def wait_task(t):
print("wait_task wait")
await t
print("wait_task wake")
async def main():
waiting_task = asyncio.create_task(wait_task(asyncio.create_task(sleep_task())))
print("main sleep")
await asyncio.sleep(0)
print("main sleep")
await asyncio.sleep(0)
waiting_task.cancel()
print("main wait")
try:
await waiting_task
except asyncio.CancelledError as er:
print(repr(er))
asyncio.run(main())
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