micropython/tests/extmod/uasyncio_loop_stop.py

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# Test Loop.stop() to stop the event loop
try:
import uasyncio as asyncio
except ImportError:
try:
import asyncio
except ImportError:
print("SKIP")
raise SystemExit
async def task():
print("task")
async def main():
print("start")
# Stop the loop after next yield
loop.stop()
# Check that calling stop() again doesn't do/break anything
loop.stop()
# This await should stop
print("sleep")
await asyncio.sleep(0)
# Schedule stop, then create a new task, then yield
loop.stop()
asyncio.create_task(task())
await asyncio.sleep(0)
# Final stop
print("end")
loop.stop()
loop = asyncio.get_event_loop()
loop.create_task(main())
for i in range(3):
print("run", i)
loop.run_forever()