#! /bin/sh
# check script for Lunzip - Decompressor for the lzip format
# Copyright (C) 2010-2017 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 "$1" ; pwd`
LZIP="${objdir}"/lunzip
framework_failure() { echo "failure in testing framework" ; exit 1 ; }

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

[ -e "${LZIP}" ] 2> /dev/null ||
	{
	echo "$0: a POSIX shell is required to run the tests"
	echo "Try bash -c \"$0 $1 $2\""
	exit 1
	}

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

cat "${testdir}"/test.txt > in || framework_failure
in_lz="${testdir}"/test.txt.lz
fail=0
test_failed() { fail=1 ; printf " $1" ; [ -z "$2" ] || printf "($2)" ; }

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

cat "${in_lz}" > uin.lz || framework_failure
for i in bad_size -1 0 4095 513MiB 1G 1T 1P 1E 1Z 1Y 10KB ; do
	"${LZIP}" -dfkqu $i uin.lz
	{ [ $? = 1 ] && [ ! -e uin ] ; } || test_failed $LINENO $i
done
rm -f uin.lz
"${LZIP}" -lq in
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -tq in
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -tq < in
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -cdq in
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -cdq < in
[ $? = 2 ] || test_failed $LINENO
# these are for code coverage
"${LZIP}" -lt "${in_lz}" 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdl "${in_lz}" > out 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdt "${in_lz}" > out 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -t -- nx_file 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --help > /dev/null || test_failed $LINENO
"${LZIP}" -n1 -V > /dev/null || test_failed $LINENO
"${LZIP}" -m 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -z 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --bad_option 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --t 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --test=2 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --output= 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" --output 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
printf "LZIP\001-.............................." | "${LZIP}" -t 2> /dev/null
printf "LZIP\002-.............................." | "${LZIP}" -t 2> /dev/null
printf "LZIP\001+.............................." | "${LZIP}" -t 2> /dev/null

printf "\ntesting decompression..."

"${LZIP}" -lq "${in_lz}" || test_failed $LINENO
"${LZIP}" -t "${in_lz}" || test_failed $LINENO
"${LZIP}" -cd "${in_lz}" > copy || test_failed $LINENO
cmp in copy || test_failed $LINENO

rm -f copy
cat "${in_lz}" > copy.lz || framework_failure
"${LZIP}" -dk copy.lz || test_failed $LINENO
cmp in copy || test_failed $LINENO
printf "to be overwritten" > copy || framework_failure
"${LZIP}" -d copy.lz 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -df copy.lz
{ [ $? = 0 ] && [ ! -e copy.lz ] && cmp in copy ; } || test_failed $LINENO

printf "to be overwritten" > copy || framework_failure
"${LZIP}" -df -o copy < "${in_lz}" || test_failed $LINENO
cmp in copy || test_failed $LINENO

rm -f copy
cat "${in_lz}" > anyothername || framework_failure
"${LZIP}" -dv --output copy - anyothername - < "${in_lz}" 2> /dev/null
{ [ $? = 0 ] && cmp in copy && cmp in anyothername.out ; } ||
	test_failed $LINENO
rm -f copy anyothername.out

"${LZIP}" -lq in "${in_lz}"
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -lq nx_file.lz "${in_lz}"
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -tq in "${in_lz}"
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -tq nx_file.lz "${in_lz}"
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdq in "${in_lz}" > copy
{ [ $? = 2 ] && cat copy in | cmp in - ; } || test_failed $LINENO
"${LZIP}" -cdq nx_file.lz "${in_lz}" > copy
{ [ $? = 1 ] && cmp in copy ; } || test_failed $LINENO
rm -f copy
cat "${in_lz}" > copy.lz || framework_failure
for i in 1 2 3 4 5 6 7 ; do
	printf "g" >> copy.lz || framework_failure
	"${LZIP}" -alvv copy.lz "${in_lz}" > /dev/null 2>&1
	[ $? = 2 ] || test_failed $LINENO $i
	"${LZIP}" -atvvvv copy.lz "${in_lz}" 2> /dev/null
	[ $? = 2 ] || test_failed $LINENO $i
done
"${LZIP}" -dq in copy.lz
{ [ $? = 2 ] && [ -e copy.lz ] && [ ! -e copy ] && [ ! -e in.out ] ; } ||
	test_failed $LINENO
"${LZIP}" -dq nx_file.lz copy.lz
{ [ $? = 1 ] && [ ! -e copy.lz ] && [ ! -e nx_file ] && cmp in copy ; } ||
	test_failed $LINENO

cat in in > in2 || framework_failure
cat "${in_lz}" "${in_lz}" > in2.lz || framework_failure
"${LZIP}" -lq in2.lz || test_failed $LINENO
"${LZIP}" -t in2.lz || test_failed $LINENO
"${LZIP}" -cd in2.lz > copy2 || test_failed $LINENO
cmp in2 copy2 || test_failed $LINENO

cat in2.lz > copy2.lz || framework_failure
printf "\ngarbage" >> copy2.lz || framework_failure
"${LZIP}" -tvvvv copy2.lz 2> /dev/null || test_failed $LINENO
rm -f copy2
"${LZIP}" -alq copy2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -atq copy2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -atq < copy2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -adkq copy2.lz
{ [ $? = 2 ] && [ ! -e copy2 ] ; } || test_failed $LINENO
"${LZIP}" -adkq -o copy2 < copy2.lz
{ [ $? = 2 ] && [ ! -e copy2 ] ; } || test_failed $LINENO
printf "to be overwritten" > copy2 || framework_failure
"${LZIP}" -df copy2.lz || test_failed $LINENO
cmp in2 copy2 || test_failed $LINENO

for i in 12 5120 6Ki 29 512KiB ; do
	printf "to be overwritten" > copy || framework_failure
	"${LZIP}" -df -u$i -o copy < "${in_lz}" || test_failed $LINENO $i
	cmp in copy || test_failed $LINENO $i
done

printf "\ntesting bad input..."

cat "${in_lz}" "${in_lz}" "${in_lz}" > in3.lz || framework_failure
if dd if=in3.lz of=trunc.lz bs=14752 count=1 2> /dev/null &&
   [ -e trunc.lz ] && cmp in2.lz trunc.lz > /dev/null 2>&1 ; then
	for i in 6 20 14734 14753 14754 14755 14756 14757 14758 ; do
		dd if=in3.lz of=trunc.lz bs=$i count=1 2> /dev/null
		"${LZIP}" -lq trunc.lz
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -t trunc.lz 2> /dev/null
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -tq < trunc.lz
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -cdq trunc.lz > out
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -dq < trunc.lz > out
		[ $? = 2 ] || test_failed $LINENO $i
	done
else
	printf "\nwarning: skipping truncation test: 'dd' does not work on your system."
fi

cat "${in_lz}" > ingin.lz || framework_failure
printf "g" >> ingin.lz || framework_failure
cat "${in_lz}" >> ingin.lz || framework_failure
"${LZIP}" -lq ingin.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -t ingin.lz || test_failed $LINENO
"${LZIP}" -cd ingin.lz > copy || test_failed $LINENO
cmp in copy || test_failed $LINENO
"${LZIP}" -t < ingin.lz || test_failed $LINENO
"${LZIP}" -d < ingin.lz > copy || test_failed $LINENO
cmp in copy || test_failed $LINENO

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