#!/bin/sh

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

cat << EOF > patch1
--- file.orig
+++ file
@@ -36 +36 @@
-oldline
+newline
EOF
cat << EOF > patch2
--- file.orig	Nov 27 2001
+++ file	Nov 27 2001
@@ -36 +36 @@
-oldline
+betterline
EOF

${INTERDIFF} -U0 patch1 patch2 2>errors > patch1-2 || exit 1
[ -s errors ] && exit 1
cat << EOF | cmp - patch1-2 || exit 1
diff -U0 file file
--- file
+++ file	Nov 27 2001
@@ -36 +36 @@
-newline
+betterline
EOF