#!/bin/sh

. ${top_srcdir-.}/tests/common.sh

cat << EOF > orig
a
b
EOF
echo -n c >> orig
cat << EOF > new
a
b
c
EOF

${DIFF} -u orig new > patch
${INTERDIFF} patch patch 2>errors > null || exit 1
[ -s errors ] && exit 1
[ -s null ] && echo 1

${INTERDIFF} patch /dev/null 2>errors > reverse || exit 1
[ -s errors ] && exit 1

${PATCH} -i reverse new 2>errors || exit 1
[ -s errors ] && exit 1

cmp orig new || exit 1