format-patch: introduce format.useAutoBase configuration

diff --git a/t/t1401-symbolic-ref.sh b/t/t1401-symbolic-ref.sh
index 1f0dff3a0b1cedb95b900a01de972e8a02e29f90..417eecc3af2a30c3544ddd2f83b7ccecc540eaf1 100755 (executable)
--- a/t/t1401-symbolic-ref.sh
+++ b/t/t1401-symbolic-ref.sh
@@ -29,7 +29,7 @@ reset_to_sane
 
 test_expect_success 'symbolic-ref refuses bare sha1' '
        echo content >file && git add file && git commit -m one &&
-       test_must_fail git symbolic-ref HEAD `git rev-parse HEAD`
+       test_must_fail git symbolic-ref HEAD $(git rev-parse HEAD)
 '
 reset_to_sane
 
@@ -114,4 +114,19 @@ test_expect_success 'symbolic-ref writes reflog entry' '
        test_cmp expect actual
 '
 
+test_expect_success 'symbolic-ref does not create ref d/f conflicts' '
+       git checkout -b df &&
+       test_commit df &&
+       test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df &&
+       git pack-refs --all --prune &&
+       test_must_fail git symbolic-ref refs/heads/df/conflict refs/heads/df
+'
+
+test_expect_success 'symbolic-ref handles existing pointer to invalid name' '
+       head=$(git rev-parse HEAD) &&
+       git symbolic-ref HEAD refs/heads/outer &&
+       git update-ref refs/heads/outer/inner $head &&
+       git symbolic-ref HEAD refs/heads/unrelated
+'
+
 test_done