credential: let helpers tell us to quit

diff --git a/t/t7007-show.sh b/t/t7007-show.sh
index a40cd3630c28a13f4e0f36ef9f56925d3c8579ed..1b824fe5ede3b933350696b78b6f53c1c69d0fff 100755 (executable)
--- a/t/t7007-show.sh
+++ b/t/t7007-show.sh
@@ -24,7 +24,8 @@ test_expect_success 'set up a bit of history' '
        git tag -m "annotated tag" annotated &&
        git checkout -b side HEAD^^ &&
        test_commit side2 &&
-       test_commit side3
+       test_commit side3 &&
+       test_merge merge main3
 '
 
 test_expect_success 'showing two commits' '
@@ -108,4 +109,19 @@ test_expect_success 'showing range' '
        test_cmp expect actual.filtered
 '
 
+test_expect_success '-s suppresses diff' '
+       cat >expect <<-\EOF &&
+       merge
+       main3
+       EOF
+       git show -s --format=%s merge main3 >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success '--quiet suppresses diff' '
+       echo main3 >expect &&
+       git show --quiet --format=%s main3 >actual &&
+       test_cmp expect actual
+'
+
 test_done