#! /bin/sh
# check script for Lziprecover - Data recovery tool for lzipped files
# Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz.
#
# This script is free software: you have unlimited permission
# to copy, distribute and modify it.

LC_ALL=C
export LC_ALL
objdir=`pwd`
testdir=`cd "$1" ; pwd`
LZIPRECOVER="${objdir}"/lziprecover
framework_failure() { echo "failure in testing framework" ; exit 1 ; }

if [ ! -x "${LZIPRECOVER}" ] ; then
	echo "${LZIPRECOVER}: cannot execute"
	exit 1
fi

if [ -d tmp ] ; then rm -rf tmp ; fi
mkdir tmp
cd "${objdir}"/tmp

in="${testdir}"/test.txt
in_lz="${testdir}"/test_v1.lz
inD="${testdir}"/test921-1921.txt
bad1_lz="${testdir}"/test_bad1.lz
bad2_lz="${testdir}"/test_bad2.lz
bad3_lz="${testdir}"/test_bad3.lz
bad4_lz="${testdir}"/test_bad4.lz
bad5_lz="${testdir}"/test_bad5.lz
fail=0

# Description of test files for lziprecover:
# test_bad1.lz: byte at offset 67 changed from 0xCC to 0x33
# test_bad2.lz: [  34-  66) --> copy of bytes [  68- 100)
# test_bad3.lz: [ 512-1536) --> zeroed;       [2560-3584) --> zeroed
# test_bad4.lz: [3072-4096) --> random data;  [4608-5632) --> zeroed
# test_bad5.lz: [1024-2048) --> random data;  [5120-6144) --> random data

printf "testing lziprecover-%s..." "$2"

"${LZIPRECOVER}" -D 921-1921 -o copy ${in_lz} || fail=1
cmp ${inD} copy || fail=1
printf .
"${LZIPRECOVER}" -D 921,1000 ${in_lz} > copy || fail=1
cmp ${inD} copy || fail=1
printf .

"${LZIPRECOVER}" -m -o copy.lz ${bad1_lz} ${bad2_lz} ${bad1_lz} -q
if [ $? != 1 ] ; then fail=1 ; printf - ; else printf . ; fi
"${LZIPRECOVER}" -m -o copy.lz ${bad1_lz} ${bad2_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .
"${LZIPRECOVER}" -m -o copy.lz ${bad2_lz} ${bad1_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .

for i in ${bad1_lz} ${bad2_lz} ; do
	for j in ${bad3_lz} ${bad4_lz} ${bad5_lz} ; do
		"${LZIPRECOVER}" -m -o copy.lz ${i} ${j} || fail=1
		"${LZIPRECOVER}" -df copy.lz || fail=1
		cmp ${in} copy || fail=1
		printf .
		"${LZIPRECOVER}" -m -o copy.lz ${j} ${i} || fail=1
		"${LZIPRECOVER}" -df copy.lz || fail=1
		cmp ${in} copy || fail=1
		printf .
	done
done

"${LZIPRECOVER}" -m -o copy.lz ${bad3_lz} ${bad4_lz} ${bad5_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .
"${LZIPRECOVER}" -m -o copy.lz ${bad4_lz} ${bad5_lz} ${bad3_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .
"${LZIPRECOVER}" -m -o copy.lz ${bad5_lz} ${bad3_lz} ${bad4_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .

"${LZIPRECOVER}" -R ${in_lz} || fail=1
printf .
"${LZIPRECOVER}" -R -o copy.lz ${bad2_lz} -q
if [ $? != 2 ] ; then fail=1 ; printf - ; else printf . ; fi
"${LZIPRECOVER}" -R -o copy.lz ${bad1_lz} || fail=1
"${LZIPRECOVER}" -df copy.lz || fail=1
cmp ${in} copy || fail=1
printf .

cat ${in_lz} ${in_lz} ${in_lz} > copy || framework_failure
printf "garbage" >> copy || fail=1
"${LZIPRECOVER}" -s -o copy.lz copy || fail=1
for i in 1 2 3 ; do
	"${LZIPRECOVER}" -cd rec0000${i}copy.lz > copy || fail=1
	cmp ${in} copy || fail=1
	printf .
done

echo
if [ ${fail} = 0 ] ; then
	echo "tests completed successfully."
	cd "${objdir}" && rm -r tmp
else
	echo "tests failed."
fi
exit ${fail}