circuitpython/tests/extmod/asyncio_task_done.py

64 lines
1.2 KiB
Python

# Test the Task.done() method
try:
import asyncio
except ImportError:
print("SKIP")
raise SystemExit
async def task(t, exc=None):
print("task start")
if t >= 0:
await asyncio.sleep(t)
if exc:
raise exc
print("task done")
async def main():
# Task that finishes immediately.
print("=" * 10)
t = asyncio.create_task(task(-1))
print(t.done())
await asyncio.sleep(0)
print(t.done())
await t
print(t.done())
# Task that starts, runs and finishes.
print("=" * 10)
t = asyncio.create_task(task(0.01))
print(t.done())
await asyncio.sleep(0)
print(t.done())
await t
print(t.done())
# Task that raises immediately.
print("=" * 10)
t = asyncio.create_task(task(-1, ValueError))
print(t.done())
await asyncio.sleep(0)
print(t.done())
try:
await t
except ValueError as er:
print(repr(er))
print(t.done())
# Task that raises after a delay.
print("=" * 10)
t = asyncio.create_task(task(0.01, ValueError))
print(t.done())
await asyncio.sleep(0)
print(t.done())
try:
await t
except ValueError as er:
print(repr(er))
print(t.done())
asyncio.run(main())