# Copyright (C) 2017 Free Software Foundation, Inc.
#
# Copying and distribution of this file, with or without modification,
# in any medium, are permitted without royalty provided the copyright
# notice and this notice are preserved.

. $srcdir/test-lib.sh

require cat
use_local_patch
use_tmpdir

# ==============================================================

# Check if patch incorrectly applies overlapping hunks: after the
# first hunk is applied, the second hunk should not apply
# anymore.  Older versions of patch didn't recognize that and did
# apply the second hunk on top of the first one, leading to the
# following incorrect result, with no information about hunk 2:
#
# Hunk #1 succeeded at 7 (offset 6 lines).
#
# printf '%s\n' x x x x x x 1 2 3 a a 4 5 6

cat > a.diff <<EOF
--- a
+++ a
@@ -1,6 +1,7 @@
 1
 2
 3
+a
 4
 5
 6
@@ -7,6 +8,7 @@
 1
 2
 3
+a
 4
 5
 6
EOF

printf "%s\n" x x x x x x > a
seq 1 6 >> a

check 'patch < a.diff || echo status: $?' <<EOF
patching file a
Hunk #1 succeeded at 7 (offset 6 lines).
Hunk #2 FAILED at 8.
1 out of 2 hunks FAILED -- saving rejects to file a.rej
status: 1
EOF