test: caution on our version of 'yes'

diff --git a/t/t7612-merge-verify-signatures.sh b/t/t7612-merge-verify-signatures.sh
index e2b1df817a50a48132964124d359c7dc29a89e23..d99218a725c5956d75e32684b196bdc050a0e8b1 100755 (executable)
--- a/t/t7612-merge-verify-signatures.sh
+++ b/t/t7612-merge-verify-signatures.sh
@@ -103,4 +103,11 @@ test_expect_success GPG 'merge commit with bad signature with merge.verifySignat
        git merge --no-verify-signatures $(cat forged.commit)
 '
 
+test_expect_success GPG 'merge unsigned commit into unborn branch' '
+       test_when_finished "git checkout initial" &&
+       git checkout --orphan unborn &&
+       test_must_fail git merge --verify-signatures side-unsigned 2>mergeerror &&
+       test_i18ngrep "does not have a GPG signature" mergeerror
+'
+
 test_done