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t5516: don't use HEAD ref for invalid ref-deletion tests

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A few tests in t5516 want to assert that we can delete a corrupted ref
whose pointed-to object is missing. They do so by using the "main"
branch, which is also pointed to by HEAD.

This does work, but only because of a subtle assumption about the
implementation. We do not block the deletion because of the invalid ref,
but we _also_ do not notice that the deleted branch is pointed to by
HEAD. And so the safety rule of "do not allow HEAD to be deleted in a
non-bare repository" does not kick in, and the test passes.

Let's instead use a non-HEAD branch. That still tests what we care about
here (deleting a corrupt ref), but without implicitly depending on our
failure to notice that we're deleting HEAD. That will future proof the
test against that behavior changing.

Signed-off-by: Jeff King <peff@peff.net>
Reviewed-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jeff King 2021-09-24 14:33:00 -04:00 committed by Junio C Hamano
parent b4724242fa
commit e9de7a52a5
1 changed files with 9 additions and 9 deletions
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18
t/t5516-fetch-push.sh
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@ -662,10 +662,10 @@ test_expect_success 'push does not update local refs on failure' '
test_expect_success 'allow deleting an invalid remote ref' '
mk_test testrepo heads/main &&
mk_test testrepo heads/branch &&
rm -f testrepo/.git/objects/??/* &&
git push testrepo :refs/heads/main &&
(cd testrepo && test_must_fail git rev-parse --verify refs/heads/main)
git push testrepo :refs/heads/branch &&
(cd testrepo && test_must_fail git rev-parse --verify refs/heads/branch)
'
@ -706,25 +706,25 @@ test_expect_success 'pushing valid refs triggers post-receive and post-update ho
'
test_expect_success 'deleting dangling ref triggers hooks with correct args' '
mk_test_with_hooks testrepo heads/main &&
mk_test_with_hooks testrepo heads/branch &&
rm -f testrepo/.git/objects/??/* &&
git push testrepo :refs/heads/main &&
git push testrepo :refs/heads/branch &&
(
cd testrepo/.git &&
cat >pre-receive.expect <<-EOF &&
$ZERO_OID $ZERO_OID refs/heads/main
$ZERO_OID $ZERO_OID refs/heads/branch
EOF
cat >update.expect <<-EOF &&
refs/heads/main $ZERO_OID $ZERO_OID
refs/heads/branch $ZERO_OID $ZERO_OID
EOF
cat >post-receive.expect <<-EOF &&
$ZERO_OID $ZERO_OID refs/heads/main
$ZERO_OID $ZERO_OID refs/heads/branch
EOF
cat >post-update.expect <<-EOF &&
refs/heads/main
refs/heads/branch
EOF
test_cmp pre-receive.expect pre-receive.actual &&