Subject: Re: [PATCH v2 18/21] t7900: mark pack-refs tests as REFFILES

From: Ævar Arnfjörð Bjarmason <[email-masked]>
Date: Thu, 20 May 2021 17:40:14 +0200

On Tue, Apr 27 2021, Han-Wen Nienhuys via GitGitGadget wrote:

> From: Han-Wen Nienhuys <[email-masked]>
>
> Reftable automatically compacts tables on writes. The functionality of
> incremental compaction is unittested in reftable/stack_test.c
> (test_reftable_stack_auto_compaction)
>
> In addition, pack-refs triggers a full compaction of the entire stack. This is
> exercised in t0031-reftable.sh.
>
> Given that git-maintenance simply calls out git-pack-refs, it seems superfluous
> to test this further for reftable.
>
> Signed-off-by: Han-Wen Nienhuys <[email-masked]>
> ---
>  t/t7900-maintenance.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/t/t7900-maintenance.sh b/t/t7900-maintenance.sh
> index 2412d8c5c006..6f2f55a6c51d 100755
> --- a/t/t7900-maintenance.sh
> +++ b/t/t7900-maintenance.sh
> @@ -343,7 +343,7 @@ test_expect_success 'maintenance.incremental-repack.auto' '
>  	test_subcommand git multi-pack-index write --no-progress <trace-B
>  '
>  
> -test_expect_success 'pack-refs task' '
> +test_expect_success REFFILES 'pack-refs task' '
>  	for n in $(test_seq 1 5)
>  	do
>  		git branch -f to-pack/$n HEAD || return 1

I don't think it's superfluous to test what "git maintenance" does
anyway, i.e. the test ends with:

    test_subcommand git pack-refs --all --prune

Shouldn't we test that we .. don't run that, abort, warn, whatever?
Anyway, as with another earlier comment of mine we're going to have
chicken & egg problems with amending these tests and then actually
introducing reftable support, so maybe "not yet", but I worry in general
about the loss of coverage...