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66 lines
1.8 KiB
66 lines
1.8 KiB
# Test basic behaviour of asyncio.start_server()
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try:
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import asyncio
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except ImportError:
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print("SKIP")
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raise SystemExit
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async def test():
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# Test creating 2 servers using the same address
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print("create server1")
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server1 = await asyncio.start_server(None, "0.0.0.0", 8000)
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try:
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print("create server2")
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await asyncio.start_server(None, "0.0.0.0", 8000)
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except OSError as er:
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print("OSError")
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# Wait for server to close.
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async with server1:
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print("sleep")
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await asyncio.sleep(0)
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# Test that cancellation works before the server starts if
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# the subsequent code raises.
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print("create server3")
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server3 = await asyncio.start_server(None, "0.0.0.0", 8000)
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try:
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async with server3:
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raise OSError
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except OSError as er:
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print("OSError")
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# Test that closing doesn't raise CancelledError.
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print("create server4")
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server4 = await asyncio.start_server(None, "0.0.0.0", 8000)
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server4.close()
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await server4.wait_closed()
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print("server4 closed")
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# Test that cancelling the task will still raise CancelledError, checking
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# edge cases around how many times the tasks have been re-scheduled by
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# sleep.
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async def task(n):
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print("create task server", n)
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srv = await asyncio.start_server(None, "0.0.0.0", 8000)
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await srv.wait_closed()
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# This should be unreachable.
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print("task finished")
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for num_sleep in range(0, 5):
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print("sleep", num_sleep)
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t = asyncio.create_task(task(num_sleep))
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for _ in range(num_sleep):
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await asyncio.sleep(0)
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t.cancel()
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try:
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await t
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except asyncio.CancelledError:
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print("CancelledError")
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print("done")
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asyncio.run(test())
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