run-command: teach async threads to ignore SIGPIPE

diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh
index 20b022ae3397552fd3cd4e42553f4cd3575049f5..1f0dff3a0b1cedb95b900a01de972e8a02e29f90 100755 (executable)
--- a/t/t1401-symbolic-ref.sh
+++ b/t/t1401-symbolic-ref.sh
@@ -92,4 +92,26 @@ test_expect_success LONG_REF 'we can parse long symbolic ref' '
        test_cmp expect actual
 '
 
+test_expect_success 'symbolic-ref reports failure in exit code' '
+       test_when_finished "rm -f .git/HEAD.lock" &&
+       >.git/HEAD.lock &&
+       test_must_fail git symbolic-ref HEAD refs/heads/whatever
+'
+
+test_expect_success 'symbolic-ref writes reflog entry' '
+       git checkout -b log1 &&
+       test_commit one &&
+       git checkout -b log2  &&
+       test_commit two &&
+       git checkout --orphan orphan &&
+       git symbolic-ref -m create HEAD refs/heads/log1 &&
+       git symbolic-ref -m update HEAD refs/heads/log2 &&
+       cat >expect <<-\EOF &&
+       update
+       create
+       EOF
+       git log --format=%gs -g >actual &&
+       test_cmp expect actual
+'
+
 test_done