refs.c: make remove_empty_directories always set errno to something sane

diff --git a/t/t7502-commit.sh b/t/t7502-commit.sh
index 6465cd59afb6dcd4c2e554947da4755a1beb883e..051489ea334c9693c2d19823ad23947703f66d90 100755 (executable)
--- a/t/t7502-commit.sh
+++ b/t/t7502-commit.sh
@@ -570,4 +570,30 @@ test_expect_success 'commit --status with custom comment character' '
        test_i18ngrep "^; Changes to be committed:" .git/COMMIT_EDITMSG
 '
 
+test_expect_success 'switch core.commentchar' '
+       test_commit "#foo" foo &&
+       GIT_EDITOR=.git/FAKE_EDITOR git -c core.commentChar=auto commit --amend &&
+       test_i18ngrep "^; Changes to be committed:" .git/COMMIT_EDITMSG
+'
+
+test_expect_success 'switch core.commentchar but out of options' '
+       cat >text <<\EOF &&
+# 1
+; 2
+@ 3
+! 4
+$ 5
+% 6
+^ 7
+& 8
+| 9
+: 10
+EOF
+       git commit --amend -F text &&
+       (
+               test_set_editor .git/FAKE_EDITOR &&
+               test_must_fail git -c core.commentChar=auto commit --amend
+       )
+'
+
 test_done