branch: give better message when no names specified for rename

diff --git a/t/t1507-rev-parse-upstream.sh b/t/t1507-rev-parse-upstream.sh
index d6e576192fcd014ed5f570ceeab1152b93d91d1f..b27a7209f7401706f3b0a37b495fc0cb3a07c29e 100755 (executable)
--- a/t/t1507-rev-parse-upstream.sh
+++ b/t/t1507-rev-parse-upstream.sh
@@ -54,6 +54,10 @@ test_expect_success 'my-side@{upstream} resolves to correct full name' '
        test refs/remotes/origin/side = "$(full_name my-side@{u})"
 '
 
+test_expect_success 'refs/heads/my-side@{upstream} does not resolve to my-side{upstream}' '
+       test_must_fail full_name refs/heads/my-side@{upstream}
+'
+
 test_expect_success 'my-side@{u} resolves to correct commit' '
        git checkout side &&
        test_commit 5 &&