#!/bin/sh
# Check wdiff against some simple test cases.
# Copyright (C) 1992 Free Software Foundation, Inc.

wdiff=./wdiff
input1=/tmp/wd.$$a
input2=/tmp/wd.$$b
expect=/tmp/wd.$$c
output=/tmp/wd.$$d

fail="echo; echo Check FAILED; rm -f $input1 $input2 $expect $output; exit 1"
trap "$fail" 1 2 3 14 15

cat > $input1 <<END_OF_FILE
This is input1
The quick brown fox jumps over the lazy dog.
The hurried orange fox jumps over the lazy dog.
A slow green panda walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE

cat > $input2 <<END_OF_FILE
This is input2
The quick brown fox jumps over the lazy dog.
The slow red fox jumps over the lazy dog.
A slow, short green giraffe walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE

echo "Checking wdiff"
cat > $expect <<END_OF_FILE
This is [-input1-] {+input2+}
The quick brown fox jumps over the lazy dog.
The [-hurried orange-] {+slow red+} fox jumps over the lazy dog.
A [-slow-] {+slow, short+} green [-panda-] {+giraffe+} walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE
$wdiff $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -1"
cat > $expect <<END_OF_FILE
This is {+input2+}
The quick brown fox jumps over the lazy dog.
The {+slow red+} fox jumps over the lazy dog.
A {+slow, short+} green {+giraffe+} walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE
$wdiff -1 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -2"
cat > $expect <<END_OF_FILE
This is [-input1-]
The quick brown fox jumps over the lazy dog.
The [-hurried orange-] fox jumps over the lazy dog.
A [-slow-] green [-panda-] walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE
$wdiff -2 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -3"
cat > $expect <<END_OF_FILE

======================================================================
 [-input1-] {+input2+}
======================================================================
 [-hurried orange-] {+slow red+}
======================================================================
 [-slow-] {+slow, short+}
======================================================================
 [-panda-] {+giraffe+}
======================================================================
END_OF_FILE
$wdiff -3 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -12"
cat > $expect <<END_OF_FILE
This is
======================================================================

The quick brown fox jumps over the lazy dog.
The
======================================================================
 fox jumps over the lazy dog.
A
======================================================================
 green
======================================================================
 walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE
$wdiff -12 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -13"
cat > $expect <<END_OF_FILE

======================================================================
 input2
======================================================================
 slow red
======================================================================
 slow, short
======================================================================
 giraffe
======================================================================
END_OF_FILE
$wdiff -13 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -23"
cat > $expect <<END_OF_FILE

======================================================================
 input1
======================================================================
 hurried orange
======================================================================
 slow
======================================================================
 panda
======================================================================
END_OF_FILE
$wdiff -23 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -123"
cat > $expect <<END_OF_FILE
END_OF_FILE
$wdiff -123 $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -123s"
cat > $expect <<END_OF_FILE
$input1: 39 words  34 87% common  0 0% deleted  5 12% changed
$input2: 40 words  34 85% common  0 0% inserted  6 15% changed
END_OF_FILE
$wdiff -123s $input1 $input2 > $output
diff $expect $output || eval "$fail"

echo "Checking wdiff -wxyz"
cat > $expect <<END_OF_FILE
This is (input1) <<input2>>
The quick brown fox jumps over the lazy dog.
The (hurried orange) <<slow red>> fox jumps over the lazy dog.
A (slow) <<slow, short>> green (panda) <<giraffe>> walks around a sleeping cat.
The middling red fox jumps over the lazy dog.
END_OF_FILE
$wdiff -w\( -x\) -y\<\< -z\>\> $input1 $input2 > $output
diff $expect $output || eval "$fail"

rm -f $input1 $input2 $expect $output
echo
echo All checks successful