Improve stability of tests_subprocess #2190
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On macOS, there appears to be some sort of race where sending SIGTERM to a process "too early" in its lifetime causes the exit status to appear as if SIGKILL was sent. I can reproduce this with the stdlib subprocess. Additionally, this problem doesn't occur if there is a tiny sleep between spawning a child subprocess and terminating it. My proposal is to use `/bin/sleep` on posix (which reliably does not have this issue on macOS) and continue using the Python form elsewhere.
Codecov Report
@@ Coverage Diff @@
## master #2190 +/- ##
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Coverage 99.55% 99.55%
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Files 114 114
Lines 14751 14753 +2
Branches 2341 2343 +2
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+ Hits 14685 14687 +2
Misses 44 44
Partials 22 22
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pquentin
approved these changes
Dec 7, 2021
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Should I delete those build plans, then? |
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Ideally we should use pytest.mark.xfail when detecting OpenSSL 3.0: https://docs.pytest.org/en/latest/how-to/skipping.html#condition-parameter (Well ideally we should support OpenSSL 3.0, but that hasn't happened yet) |
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On macOS, there appears to be some sort of race where sending SIGTERM
to a process "too early" in its lifetime causes the exit status to
appear as if SIGKILL was sent.
I can reproduce this with the stdlib subprocess. Additionally, this
problem doesn't occur if there is a tiny sleep between spawning a
child subprocess and terminating it.
My proposal is to use
/bin/sleepon posix (which reliably does nothave this issue on macOS) and continue using the Python form elsewhere.
Related to #851