hooks: Add function to check if a hook exists

diff --git a/t/t3501-revert-cherry-pick.sh b/t/t3501-revert-cherry-pick.sh
index 34c86e5de69468fe7618383e556d1711cc49b0bb..6f489e20eecb48c6e1a2dc2b1fe90e47e7b3e7ad 100755 (executable)
--- a/t/t3501-revert-cherry-pick.sh
+++ b/t/t3501-revert-cherry-pick.sh
@@ -100,4 +100,13 @@ test_expect_success 'revert forbidden on dirty working tree' '
 
 '
 
+test_expect_success 'chery-pick on unborn branch' '
+       git checkout --orphan unborn &&
+       git rm --cached -r . &&
+       rm -rf * &&
+       git cherry-pick initial &&
+       git diff --quiet initial &&
+       ! test_cmp_rev initial HEAD
+'
+
 test_done