New submission from Artur Rodrigues <[email protected]>:
This means that subsequent test cases executed within the same application that
don't create the event loop will fail. This seems like a behaviour change that
wasn't raised on the original PR.
$ cat test.py
from unittest import IsolatedAsyncioTestCase, TestCase, main
import asyncio
class Test1(IsolatedAsyncioTestCase):
async def test_one(self):
self.assertTrue(True)
class Test2(TestCase):
def test_two(self):
loop = asyncio.get_event_loop()
self.assertTrue(true)
if __name__ == "__main__":
main()
$ /usr/local/opt/[email protected]/bin/python3 test.py
.E
======================================================================
ERROR: test_two (__main__.Test2)
----------------------------------------------------------------------
Traceback (most recent call last):
File "test.py", line 13, in test_two
loop = asyncio.get_event_loop()
File
"/usr/local/Cellar/[email protected]/3.8.1/Frameworks/Python.framework/Versions/3.8/lib/python3.8/asyncio/events.py",
line 639, in get_event_loop
raise RuntimeError('There is no current event loop in thread %r.'
RuntimeError: There is no current event loop in thread 'MainThread'.
----------------------------------------------------------------------
Ran 2 tests in 0.006s
FAILED (errors=1)
$ uname -a
Darwin arturhoo-mbp 18.7.0 Darwin Kernel Version 18.7.0: Sun Dec 1 18:59:03
PST 2019; root:xnu-4903.278.19~1/RELEASE_X86_64 x86_64
----------
components: asyncio
messages: 361831
nosy: arturhoo, asvetlov, yselivanov
priority: normal
severity: normal
status: open
title: IsolatedAsyncioTestCase closes default event loop
type: behavior
versions: Python 3.8, Python 3.9
_______________________________________
Python tracker <[email protected]>
<https://bugs.python.org/issue39613>
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