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bpo-45209: fix UserWarning: resource_tracker in test_multiprocessing #28377

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Merged
ambv merged 4 commits into from
Sep 21, 2021
Merged

bpo-45209: fix UserWarning: resource_tracker in test_multiprocessing #28377

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25e0fe3
bpo-45209: removes `UserWarning: resource_tracker` in `test_multiproc…
sobolevn Sep 15, 2021
95b5858
Fixes windows tests
sobolevn Sep 15, 2021
540d1f4
Update 2021-09-15-23-32-39.bpo-45209.55ntL5.rst
sobolevn Sep 16, 2021
772ffd7
Mentions `_test_multiprocessing` in NEWS
sobolevn Sep 20, 2021
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7 changes: 7 additions & 0 deletions Lib/test/_test_multiprocessing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4178,6 +4178,13 @@ def test_shared_memory_cleaned_after_process_termination(self):
" a process was abruptly terminated.")

if os.name == 'posix':
# Without this line it was raising warnings like:
# UserWarning: resource_tracker:
# There appear to be 1 leaked shared_memory
# objects to clean up at shutdown
# See: https://bugs.python.org/issue45209
resource_tracker.unregister(f"/{name}", "shared_memory")

# A warning was emitted by the subprocess' own
# resource_tracker (on Windows, shared memory segments
# are released automatically by the OS).
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2 changes: 2 additions & 0 deletions Misc/NEWS.d/next/Tests/2021-09-15-23-32-39.bpo-45209.55ntL5.rst
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@@ -0,0 +1,2 @@
Fix ``UserWarning: resource_tracker`` warning in
``_test_multiprocessing._TestSharedMemory.test_shared_memory_cleaned_after_process_termination``