Ensure logging tests always cleanup after themselves #11531
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nicoddemus
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2nd commits adds type annotations for all tests in |
bluetech
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Oct 23, 2023
testing/logging/test_fixture.py
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| # This reaches into private API, don't use this type of thing in real tests! | ||
| assert set(caplog._item.stash[caplog_records_key]) == {"setup", "call"} | ||
| # error: Invalid index type "StashKey[dict[str, list[LogRecord]]]" for "Stash"; |
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I tried playing a bit with the StashKey's TypeVar variance to fix this, but I think it needs to be invariant because it's used in both setters and getters. Maybe the new Python 3.12 type parameter syntax fixes this, didn't check.
Anyway I think it can be worked around by doing it in two lines:
caplog_records = caplog._item.stash[caplog_records_key]
assert set(caplog_records) == {"setup", "call"}
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Indeed that fixes it, however I do not get why... could you explain it, please?
Logging has many global states, and we did foresee this by creating a ``cleanup_disabled_logging`` fixture, however one might still forget to use it and failures leak later -- sometimes not even in the same PR, because the order of the tests might change in the future, specially when running under xdist. This problem surfaced during pytest-dev#11530, where tests unrelated to the change started to fail.
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Logging has many global states, and we did foresee this by creating a
cleanup_disabled_loggingfixture, however one might still forget to use it and failures leak later -- sometimes not even in the same PR, because the order of the tests might change in the future, specially when running under xdist.This problem surfaced during #11530, where tests unrelated to the change started to fail.