display single contained exception in excgroups in test summary #12975
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Zac-HD
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Nov 19, 2024
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| def _get_single_subexc( | ||
| eg: BaseExceptionGroup[BaseException], | ||
| ) -> BaseException | None: |
There was a problem hiding this comment.
Simpler implementation:
def _get_single_subexc(
eg: BaseExceptionGroup[BaseException],
) -> BaseException | None:
if len(eg.exceptions) != 1:
return None
if isinstance(e := eg.exceptions[0], BaseExceptionGroup):
return _get_single_subexc(e)
return e| and isinstance(self.value, BaseExceptionGroup) | ||
| and (subexc := _get_single_subexc(self.value)) is not None | ||
| ): | ||
| return f"[in {type(self.value).__name__}] {subexc!r}" |
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Suggested change
| return f"[in {type(self.value).__name__}] {subexc!r}" | |
| return f"{subexc!r} [single exception in {type(self.value).__name__}]" |
as discussed in the issue
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fixes #12943
As
ExceptionInfostill doesn't have proper support for exception groups this continues upon the hacky solution from #10209, modifying the reprcrash as well.I find this solution ... incredibly hacky and ugly, and am not a fan that n==1 gets handled but not n==2. But conceptually it just gets really tricky to figure out what info to strip, and how to show that. If we're going with stripping structure & group messages we could extend this solution to something like
[in ExceptionGroup]: ValueError("foo"), TypeError("bar").EDIT: less hacky now that I moved the code to
ExceptionInfo.exconly