# Copyright (C) 2009, 2011-2012 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.

# Test the --merge option

. $srcdir/test-lib.sh

require_cat
require_gnu_diff
require_sed
use_local_patch
use_tmpdir

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

if ! patch --merge </dev/null 2>/dev/null ; then
    echo "Merge support DISABLED; skipping this test"
    exit
fi

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

x2() {
    body=`seq 1 $1`
    shift
    echo "$body" > a
    while test $# -gt 0 && test "$1" != -- ; do
	echo "$1"
	shift
    done > a.sed
    echo "$body" | sed -f a.sed > b
    shift
    while test $# -gt 0 ; do
	echo "$1"
	shift
    done > b.sed
    echo "$body" | sed -f b.sed > c
    rm -f a.sed b.sed
    output=`diff -u a b | patch $ARGS -f c`
    status=$?
    echo "$output" | sed -e '/^$/d' -e '/^patching file c$/d'
    cat c
    test $status == 0 || echo "Status: $status"
}

x() {
    ARGS="$ARGS --merge" x2 "$@"
    echo
    ARGS="$ARGS --merge=diff3" x2 "$@"
}

unset ARGS

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

check 'x 3' <<EOF
1
2
3

1
2
3
EOF

check 'x 3  2d' <<EOF
1
3

1
3
EOF

check 'x 2  2i\\ b' <<EOF
1
b
2

1
b
2
EOF

check 'x 3  2i\\ b -- 3i\\ c' <<EOF
Hunk #1 merged at 2.
1
b
2
c
3

Hunk #1 merged at 2.
1
b
2
c
3
EOF

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

check 'x 3  2c\\ 2b -- 2c\\ 2c' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
2c
=======
2b
>>>>>>>
3
Status: 1

Hunk #1 NOT MERGED at 2-8.
1
<<<<<<<
2c
|||||||
2
=======
2b
>>>>>>>
3
Status: 1
EOF

check 'x 3  2d -- 2d' <<EOF
Hunk #1 already applied at 2.
1
3

Hunk #1 already applied at 2.
1
3
EOF

check 'x 2  2i\\ bc -- 2i\\ bc' <<EOF
Hunk #1 already applied at 2.
1
bc
2

Hunk #1 already applied at 2.
1
bc
2
EOF

check 'x 4  2a\\ a 2a\\ a -- 2a\\ a 2a\\ a' <<EOF
Hunk #1 already applied at 3-4.
1
2
a
a
3
4

Hunk #1 already applied at 3-4.
1
2
a
a
3
4
EOF

check 'x 2  1i\\ a 1i\\ b -- 1i\\ a 1i\\ b' <<EOF
Hunk #1 already applied at 1-2.
a
b
1
2

Hunk #1 already applied at 1-2.
a
b
1
2

EOF

check 'x 2  2a\\ a 2a\\ b -- 2a\\ a 2a\\ b' <<EOF
Hunk #1 already applied at 3-4.
1
2
a
b

Hunk #1 already applied at 3-4.
1
2
a
b

EOF

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

check 'x 4  2d -- 3d' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
2
=======
3
>>>>>>>
4
Status: 1

Hunk #1 NOT MERGED at 2-9.
1
<<<<<<<
2
|||||||
2
3
=======
3
>>>>>>>
4
Status: 1
EOF

check 'x 4  3d -- 2d' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
3
=======
2
>>>>>>>
4
Status: 1

Hunk #1 NOT MERGED at 2-9.
1
<<<<<<<
3
|||||||
2
3
=======
2
>>>>>>>
4
Status: 1
EOF

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

check 'x 3  3i\\ b -- 2d' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
=======
2
b
>>>>>>>
3
Status: 1

Hunk #1 NOT MERGED at 2-8.
1
<<<<<<<
|||||||
2
=======
2
b
>>>>>>>
3
Status: 1
EOF

check 'x 3  2d -- 3i\\ b' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
2
b
=======
>>>>>>>
3
Status: 1

Hunk #1 NOT MERGED at 2-8.
1
<<<<<<<
2
b
|||||||
2
=======
>>>>>>>
3
Status: 1
EOF

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

# (Note that the output here differs from the diff3 output:
# patch does not have enough information to know that the "c"
# on the last line is part of the conflict.

check 'x 1  1c\\ b -- 1c\\ c' <<EOF
Hunk #1 NOT MERGED at 1-4.
<<<<<<<
=======
b
>>>>>>>
c
Status: 1

Hunk #1 NOT MERGED at 1-6.
<<<<<<<
|||||||
1
=======
b
>>>>>>>
c
Status: 1
EOF

check 'x 4  2c\\ a 3c\\ b -- 2c\\ a 3c\\ c' <<EOF
Hunk #1 NOT MERGED at 3-7.
1
a
<<<<<<<
c
=======
b
>>>>>>>
4
Status: 1

Hunk #1 NOT MERGED at 2-11.
1
<<<<<<<
a
c
|||||||
2
3
=======
a
b
>>>>>>>
4
Status: 1
EOF

check 'x 6  3c\\ 3b 4c\\ 4b -- 3c\\ 3c 4c\\ 4c' <<EOF
Hunk #1 NOT MERGED at 3-9.
1
2
<<<<<<<
3c
4c
=======
3b
4b
>>>>>>>
5
6
Status: 1

Hunk #1 NOT MERGED at 3-12.
1
2
<<<<<<<
3c
4c
|||||||
3
4
=======
3b
4b
>>>>>>>
5
6
Status: 1
EOF

check 'x 4  2c\\ b 3c\\ a -- 2c\\ c 3c\\ a' <<EOF
Hunk #1 NOT MERGED at 2-6.
1
<<<<<<<
c
=======
b
>>>>>>>
a
4
Status: 1

Hunk #1 NOT MERGED at 2-11.
1
<<<<<<<
c
a
|||||||
2
3
=======
b
a
>>>>>>>
4
Status: 1
EOF

check 'x 3  2i\\ b 3i\\ b -- 2i\\ c' <<EOF
Hunk #1 NOT MERGED at 2-6, merged at 8.
1
<<<<<<<
c
=======
b
>>>>>>>
2
b
3
Status: 1

Hunk #1 NOT MERGED at 2-7, merged at 9.
1
<<<<<<<
c
|||||||
=======
b
>>>>>>>
2
b
3
Status: 1
EOF

check 'x 3  2i\\ b 3i\\ b 3i\\ b -- 2i\\ c' <<EOF
Hunk #1 NOT MERGED at 2-6, merged at 8-9.
1
<<<<<<<
c
=======
b
>>>>>>>
2
b
b
3
Status: 1

Hunk #1 NOT MERGED at 2-7, merged at 9-10.
1
<<<<<<<
c
|||||||
=======
b
>>>>>>>
2
b
b
3
Status: 1
EOF

check 'x 9  4c\\ a 5c\\ b 6c\\ a -- 4c\\ a 5c\\ c 6c\\ a' <<EOF
Hunk #1 NOT MERGED at 5-9.
1
2
3
a
<<<<<<<
c
=======
b
>>>>>>>
a
7
8
9
Status: 1

Hunk #1 NOT MERGED at 4-16.
1
2
3
<<<<<<<
a
c
a
|||||||
4
5
6
=======
a
b
a
>>>>>>>
7
8
9
Status: 1
EOF

check 'x 3  2i\\ b 3i\\ b -- 1i\\ 0' <<EOF
0
1
b
2
b
3

0
1
b
2
b
3
EOF

check 'x 4  2i\\ b 4i\\ b -- 1i\\ 0 3i\\ c' <<EOF
Hunk #1 merged at 3,7.
0
1
b
2
c
3
b
4

Hunk #1 merged at 3,7.
0
1
b
2
c
3
b
4
EOF

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

check 'x 5  2,4d -- 3c\\ 3c' <<EOF
Hunk #1 NOT MERGED at 2-7.
1
<<<<<<<
2
3c
4
=======
>>>>>>>
5
Status: 1

Hunk #1 NOT MERGED at 2-11.
1
<<<<<<<
2
3c
4
|||||||
2
3
4
=======
>>>>>>>
5
Status: 1
EOF

check 'x 5  3c\\ 3c -- 2,4d' <<EOF
Hunk #1 NOT MERGED at 2-7.
1
<<<<<<<
=======
2
3c
4
>>>>>>>
5
Status: 1

Hunk #1 NOT MERGED at 2-11.
1
<<<<<<<
|||||||
2
3
4
=======
2
3c
4
>>>>>>>
5
Status: 1
EOF

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

check 'x 3  1,2d -- 2i\\ c' <<EOF
Hunk #1 NOT MERGED at 1-6.
<<<<<<<
1
c
2
=======
>>>>>>>
3
Status: 1

Hunk #1 NOT MERGED at 1-9.
<<<<<<<
1
c
2
|||||||
1
2
=======
>>>>>>>
3
Status: 1
EOF

check 'x 3  2i\\ c -- 1,2d' <<EOF
Hunk #1 NOT MERGED at 1-6.
<<<<<<<
=======
1
c
2
>>>>>>>
3
Status: 1

Hunk #1 NOT MERGED at 1-9.
<<<<<<<
|||||||
1
2
=======
1
c
2
>>>>>>>
3
Status: 1
EOF