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gh-103780: Use patch instead of mock in asyncio unix events test #103782

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merged 2 commits into from
Apr 24, 2023
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gh-103780: Use patch instead of mock in asyncio unix events test #103782

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gh-103780: Use patch instead of mock in asyncio unix events test
itamaro Apr 24, 2023
7e0479a
Use patch decorator instead of context manager
itamaro Apr 24, 2023
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9 changes: 4 additions & 5 deletions Lib/test/test_asyncio/test_unix_events.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1712,11 +1712,11 @@ class PolicyTests(unittest.TestCase):
def create_policy(self):
return asyncio.DefaultEventLoopPolicy()

def test_get_default_child_watcher(self):
@mock.patch('asyncio.unix_events.can_use_pidfd')
def test_get_default_child_watcher(self, m_can_use_pidfd):
m_can_use_pidfd.return_value = False
policy = self.create_policy()
self.assertIsNone(policy._watcher)
unix_events.can_use_pidfd = mock.Mock()
unix_events.can_use_pidfd.return_value = False
with self.assertWarns(DeprecationWarning):
watcher = policy.get_child_watcher()
self.assertIsInstance(watcher, asyncio.ThreadedChildWatcher)
Expand All @@ -1725,10 +1725,9 @@ def test_get_default_child_watcher(self):
with self.assertWarns(DeprecationWarning):
self.assertIs(watcher, policy.get_child_watcher())

m_can_use_pidfd.return_value = True
policy = self.create_policy()
self.assertIsNone(policy._watcher)
unix_events.can_use_pidfd = mock.Mock()
unix_events.can_use_pidfd.return_value = True
with self.assertWarns(DeprecationWarning):
watcher = policy.get_child_watcher()
self.assertIsInstance(watcher, asyncio.PidfdChildWatcher)
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