[3.15] gh-150175: Fix ThreadingMock call_count race condition (GH-150176)#150182
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[3.15] gh-150175: Fix ThreadingMock call_count race condition (GH-150176)#150182miss-islington wants to merge 1 commit into
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…H-150176) ThreadingMock._increment_mock_call() was not thread-safe. Multiple threads calling the mock simultaneously could lose increments due to race conditions on call_count and other attributes. Fix by overriding _increment_mock_call in ThreadingMixin and wrapping it with the existing _mock_calls_events_lock. (cherry picked from commit 388e023) Co-authored-by: saisneha196 <156835592+saisneha196@users.noreply.github.com>
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This was referenced May 21, 2026
cjw296
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May 21, 2026
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ThreadingMock._increment_mock_call() was not thread-safe.
Multiple threads calling the mock simultaneously could lose
increments due to race conditions on call_count and other
attributes.
Fix by overriding _increment_mock_call in ThreadingMixin
and wrapping it with the existing _mock_calls_events_lock.
(cherry picked from commit 388e023)
Co-authored-by: saisneha196 156835592+saisneha196@users.noreply.github.com