On Tue, Jul 20, 2010 at 18:00, Junio C Hamano <gitster@xxxxxxxxx> wrote:
> Run a git command and ensure it fails in a controlled way. Use
> this instead of "! <git-command>". When git-command dies due to a
> segfault, test_must_fail diagnoses it as an error; "! <git-command>"
> treats it as just another expected failure. letting such a bug go
> unnoticed.
To add to that:
Don't use test_must_fail to negate the return values of commands
on the system like grep, sed etc. If we can't trust that the core
utilities won't randomly segfault we might as well die horribly.
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