Re: [PATCH] t3420-rebase-autostash: don't try to grep non-existing files

> On Sun, Oct 10, 2021 at 07:28:09PM +0200, SZEDER Gábor wrote:
>> Several tests in 't3420-rebase-autostash.sh' start various rebase
>> processes that are expected to fail because of merge conflicts.  The
>> tests [1] checking that 'git rebase --quit' and autostash work
>> together as expected after such a failure then run '! grep ...' to
>> ensure that the dirty contents of the file is gone.  However, due to
>> the test repo's history and the choice of upstream branch that file
>> shouldn't exist in the conflicted state at all, and thus it shouldn't
>> exist after the subsequent 'git rebase --quit' either.  Consequently,
>> this 'grep' doesn't fail as expected, i.e. because it can't find the
>> dirty content, but instead it fails, because it can't open the file.
>> 
>> Thighten this check by using 'test_path_is_missing' instead, thereby
>> avoiding unexpected errors from 'grep' as well.