git add -p: demonstrate failure when staging both mode and hunk

When trying to stage changes to file which has also pending `chmod +x`,
`git add -p` produces lots of 'Use of uninitialized value ...' warnings
and fails to do the job:

$ echo content >> file
$ chmod +x file
$ git add -p
diff --git a/file b/file
index e69de29..d95f3ad
--- a/file
+++ b/file
old mode 100644
new mode 100755
Stage mode change [y,n,q,a,d,/,j,J,g,?]? y
@@ -0,0 +1 @@
+content
Stage this hunk [y,n,q,a,d,/,K,g,e,?]? y
Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776.
Use of uninitialized value $ofs in numeric le (<=) at .../git-add--interactive line 806.
Use of uninitialized value $o0_ofs in concatenation (.) or string at .../git-add--interactive line 830.
Use of uninitialized value $n0_ofs in concatenation (.) or string at .../git-add--interactive line 830.
Use of uninitialized value $o_ofs in addition (+) at .../git-add--interactive line 776.
fatal: corrupt patch at line 5
diff --git a/file b/file
index e69de29..d95f3ad
--- a/file
+++ b/file
@@ -,0 + @@
+content

Signed-off-by: Kirill Smelkov <kirr@mns.spb.ru>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/t/t3701-add-interactive.sh b/t/t3701-add-interactive.sh
index 5cdb83d28c2bc54babf463da1aa591a66b300c9a..b68141f48ab6ef5b9d2449dfe6750245c794a99d 100755 (executable)
--- a/t/t3701-add-interactive.sh
+++ b/t/t3701-add-interactive.sh
@@ -163,6 +163,17 @@ test_expect_success FILEMODE 'stage mode but not hunk' '
        git diff          file | grep "+content"
 '
 
+
+test_expect_failure FILEMODE 'stage mode and hunk' '
+       git reset --hard &&
+       echo content >>file &&
+       chmod +x file &&
+       printf "y\\ny\\n" | git add -p &&
+       git diff --cached file | grep "new mode" &&
+       git diff --cached file | grep "+content" &&
+       test -z "$(git diff file)"
+'
+
 # end of tests disabled when filemode is not usable
 
 # Write the patch file with a new line at the top and bottom