Re: [PATCH] name-rev: use generation numbers if available

>
> On Mon, Feb 28, 2022 at 6:36 PM Junio C Hamano <gitster@pobox.com> wrote:
> >
> > Jacob Keller <jacob.e.keller@intel.com> writes:
> >
> > > +test_expect_success 'name-rev without commitGraph does not handle non-monotonic timestamps' '
> > > +     test_config -C non-monotonic core.commitGraph false &&
> > > +     (
> > > +             cd non-monotonic &&
> > > +
> > > +             rm -rf .git/info/commit-graph* &&
> > > +
> > > +             echo "main~3 undefined" >expect &&
> > > +             git name-rev --tags main~3 >actual &&
> > > +
> > > +             test_cmp expect actual
> > > +     )
> > > +'
> >
> > I doubt it is wise to "test" that a program does _not_ produce a
> > correct output, or even worse, it produces a particular wrong
> > output.  This test, for example, casts in stone that any future
> > optimization that does not depend on the commit-graph is forever
> > prohibited.
> >
> > Just dropping the test would be fine, I would think.
>
> Stolee mentioned it. We could also convert it to a
> "test_expect_failure" with the expected output too... But that makes
> it look like something we'll fix