https://bugzilla.wikimedia.org/show_bug.cgi?id=62623
Bug ID: 62623
Summary: phpunit segfaults when too many tests are run
Product: Wikimedia
Version: unspecified
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Continuous integration
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected]
Web browser: ---
Mobile Platform: ---
When too many tests are run, phpunit will segfault after it finishes running
the tests. It might be related to the total number of asserts, or memory
allocated, but mediawiki core is close to some limit, where patchsets with a
lot of tests can trigger this condition (see
https://gerrit.wikimedia.org/r/#/c/77645/, patchsets 23-25).
I was able to reproduce the segfault in a patch that only contained noop tests
too. Somewhere between 150-175 tests that just assertFalse(false) will trigger
it. See https://gerrit.wikimedia.org/r/#/c/118573/ for plenty of patchsets that
reproduce the issue.
I'm afraid if we add too many more tests to core, we're going to quickly start
hitting this more frequently, so it would be good to try and get to the root of
it.
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