gh-109974: Fix threading lock_tests race conditions #110057
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Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase().
vstinner
added
tests
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Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.11, 3.12. |
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Sorry, @vstinner, I could not cleanly backport this to |
miss-islington
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Sep 29, 2023
…10057) Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase(). (cherry picked from commit 4e356ad) Co-authored-by: Victor Stinner <vstinner@python.org>
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GH-110063 is a backport of this pull request to the 3.11 branch. |
vstinner
added
needs backport to 3.12
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Thanks @vstinner for the PR 🌮🎉.. I'm working now to backport this PR to: 3.12. |
miss-islington
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to miss-islington/cpython
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Oct 4, 2023
…10057) Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase(). (cherry picked from commit 4e356ad) Co-authored-by: Victor Stinner <vstinner@python.org>
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GH-110344 is a backport of this pull request to the 3.12 branch. |
vstinner
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to vstinner/cpython
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Oct 4, 2023
) Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase(). (cherry picked from commit 4e356ad)
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GH-110346 is a backport of this pull request to the 3.12 branch. |
vstinner
added a commit
that referenced
this pull request
Oct 4, 2023
…110346) * gh-109974: Fix threading lock_tests race conditions (#110057) Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase(). (cherry picked from commit 4e356ad) * gh-109974: Fix more threading lock_tests race conditions (#110089) * Add context manager on Bunch class. * Bunch now catchs exceptions on executed functions and re-raise them at __exit__() as an ExceptionGroup. * Rewrite BarrierProxy.test_default_timeout(). Use a single thread. Only check that barrier.wait() blocks for at least default timeout seconds. * test_with(): inline _with() function. (cherry picked from commit 743e357)
vstinner
added a commit
that referenced
this pull request
Oct 4, 2023
…110355) [3.12] gh-109974: Fix threading lock_tests race conditions (#110057) (#110346) * gh-109974: Fix threading lock_tests race conditions (#110057) Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds. * Replace sleeping loops with support.sleeping_retry() which raises an exception on timeout. * Add wait_threads_blocked(nthread) which computes a sleep depending on the number of threads. Remove _wait() function. * test_set_and_clear(): use a way longer Event.wait() timeout. * BarrierTests.test_repr(): wait until the 2 threads are waiting for the barrier. Use a way longer timeout for Barrier.wait() timeout. * test_thread_leak() no longer needs to count len(threading.enumerate()): Bunch uses threading_helper.wait_threads_exit() internally which does it in wait_for_finished(). * Add BaseLockTests.wait_phase() which implements a timeout. test_reacquire() and test_recursion_count() use wait_phase(). (cherry picked from commit 4e356ad) * gh-109974: Fix more threading lock_tests race conditions (#110089) * Add context manager on Bunch class. * Bunch now catchs exceptions on executed functions and re-raise them at __exit__() as an ExceptionGroup. * Rewrite BarrierProxy.test_default_timeout(). Use a single thread. Only check that barrier.wait() blocks for at least default timeout seconds. * test_with(): inline _with() function. (cherry picked from commit 743e357) (cherry picked from commit 1d032ea)
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Fix race conditions in test_threading lock tests. Wait until a condition is met rather than using time.sleep() with a hardcoded number of seconds.