git reset --hard c0 &&
mkdir sub &&
echo "sub/f" > sub/f &&
- git add sub/f &&
+ mkdir sub2 &&
+ echo "sub2/f" > sub2/f &&
+ git add sub/f sub2/f &&
git commit -m sub &&
git tag sub &&
echo "VERY IMPORTANT CHANGES" > important
test_cmp important sub/f/important
'
+cat >expect <<\EOF
+error: The following untracked working tree files would be overwritten by merge:
+ sub
+ sub2
+Please move or remove them before you can merge.
+EOF
+
test_expect_success 'will not overwrite untracked file in leading path' '
git reset --hard c0 &&
rm -rf sub &&
cp important sub &&
- test_must_fail git merge sub &&
+ cp important sub2 &&
+ test_must_fail git merge sub 2>out &&
+ test_cmp out expect &&
test_path_is_missing .git/MERGE_HEAD &&
- test_cmp important sub
+ test_cmp important sub &&
+ test_cmp important sub2 &&
+ rm -f sub sub2
'
test_expect_failure SYMLINKS 'will not overwrite untracked symlink in leading path' '
test_cmp important c0.c
'
+test_expect_success 'set up unborn branch and content' '
+ git symbolic-ref HEAD refs/heads/unborn &&
+ rm -f .git/index &&
+ echo foo > tracked-file &&
+ git add tracked-file &&
+ echo bar > untracked-file
+'
+
+test_expect_failure 'will not clobber WT/index when merging into unborn' '
+ git merge master &&
+ grep foo tracked-file &&
+ git show :tracked-file >expect &&
+ grep foo expect &&
+ grep bar untracked-file
+'
+
test_done