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gh-110774: allow setting the Runner(loop_factory=...) from IsolatedAsyncioTestCase (#110776)

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Co-authored-by: Łukasz Langa <lukasz@langa.pl>
Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
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Thomas Grainger 2023-10-31 15:03:54 -07:00 • committed by GitHub
parent f6a02327b5
commit 770530679e
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4 changed files with 28 additions and 2 deletions
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7
Lib/unittest/async_case.py
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@ -25,12 +25,15 @@ class IsolatedAsyncioTestCase(TestCase):
# them inside the same task.
# Note: the test case modifies event loop policy if the policy was not instantiated
# yet.
# yet, unless loop_factory=asyncio.EventLoop is set.
# asyncio.get_event_loop_policy() creates a default policy on demand but never
# returns None
# I believe this is not an issue in user level tests but python itself for testing
# should reset a policy in every test module
# by calling asyncio.set_event_loop_policy(None) in tearDownModule()
# or set loop_factory=asyncio.EventLoop
loop_factory = None
def __init__(self, methodName='runTest'):
super().__init__(methodName)
@ -118,7 +121,7 @@ class IsolatedAsyncioTestCase(TestCase):
def _setupAsyncioRunner(self):
assert self._asyncioRunner is None, 'asyncio runner is already initialized'
runner = asyncio.Runner(debug=True)
runner = asyncio.Runner(debug=True, loop_factory=self.loop_factory)
self._asyncioRunner = runner
def _tearDownAsyncioRunner(self):