AioHTTP versions compatibility (sometimes unable to stop chrome driver process)

[konstunn]

Hi! There is a problem with Python 3.8 cause TimeoutError is not in asyncio.futures anymore, I suppose, but in asyncio itself already. The exception occurs in arsenic.subprocess.AsyncioSubprocessImpl.stop_process().

I don't know why but chromedriver is not being terminated but become defunct (zombie) and stay. Arsenic waits for it to terminate for 1 second and kill it but fails with AttributeError because of the fact I stated above.

UPD: if I replace asyncio.futures.TimeoutError to asyncio.TimeoutError I still got problem but in this case the exception is 'the event loop is closed' (in aiohttp.test_utils.setup_test_loop()). By the way something does not let chromedriver to terminate and arsenic event can not kill it - I see the warning in the logs.

Funny fact: when I got 2 tests in my test case everything seems fine but if I got more that 2 test in my test case then I face the problem.

It seems that problems began when I migrated from aiohttp 2.3.5 to 3.6.2 I use pytest and unittest.

I will provide an example of my code a little bit later.

UPD: if have figured out that the problem is in aiohttp.test_utils.setup_test_loop(). I have replaced that function from aiohttp 3.6.2 with the one from aiohttp 3.2.5 and the problem is gone.