Elijah Newren <newren@xxxxxxxxx> writes: > A test making use of test_must_fail was failing like this: > fatal: ambiguous argument '|': unknown revision or path not in the working tree. > when the intent was to verify that a specific string was not found > in the output of the git diff command, i.e. that grep returned > non-zero. Fix the test to do that. > --- > t/t7406-submodule-update.sh | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh > index f604ef7a72..7be8b59569 100755 > --- a/t/t7406-submodule-update.sh > +++ b/t/t7406-submodule-update.sh > @@ -599,7 +599,7 @@ test_expect_success 'submodule update - update=none in .git/config but --checkou > ) && > git diff --raw | grep " submodule" && > git submodule update --checkout && > - test_must_fail git diff --raw \| grep " submodule" && > + git diff --raw | test_must_fail grep " submodule" && Good spotting, but a few comments. * I've seen "do not have 'git' upstream on a pipee (it would hide the exit status from an unexpected failure of 'git') recently. We probably want to do the same. * We do not use test_must_fail for non-git things, as we are not in the business of protecting us from unexpected segfault of system binaries like grep. So an immediate improvement for this line would be ! git diff --raw | grep " submodule" && and longer-term clean-up would aim for git diff --raw >differs && ! grep " submodule" && or something like that. I suspect that --raw may want to be updated to --name-only or something, as I do not see the tests using the object names hence no strong need for using --raw format.