#32557: Fail tests when unraisable exceptions occur
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Reporter: Adam Johnson | Owner: nobody
Type: New feature | Status: new
Component: Testing framework | Version: dev
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Adam Johnson):
There's a reference implementation in pytest we might be able to copy:
https://github.com/pytest-dev/pytest/pull/8055
Additionally here's an implementation I've used - calling the context
manager in an overridden DiscoverRunner.run_tests to wrap the whole test
run:
{{{
@contextmanager
def fail_if_any_unraisable_exceptions():
orig_unraisable_hook = sys.unraisablehook
hook_called = multiprocessing.Value("b", lock=False)
hook_called.value = 0
def hook(unraisable, /):
hook_called.value = 1
orig_unraisable_hook(unraisable)
sys.unraisablehook = hook
try:
yield
finally:
sys.unraisablehook = orig_unraisable_hook
if hook_called.value:
print(
"❌ Unraisable exceptions reported, failing test run - see
above.",
file=sys.stderr,
)
sys.exit(1)
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/32557#comment:1>
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