#! /bin/sh
# check script for Lunzip - Decompressor for the lzip format
# Copyright (C) 2010-2024 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
in_em="${testdir}"/test_em.txt.lz
fox_lz="${testdir}"/fox.lz
fox6_lz="${testdir}"/fox6.lz
f6mk_lz="${testdir}"/fox6_mark.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}" -dfkq -u $i uin.lz
	[ $? = 1 ] || test_failed $LINENO $i
	[ ! -e uin ] || test_failed $LINENO $i
done
rm -f uin.lz || framework_failure
"${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 $LINENO
"${LZIP}" -dq -o in < "${in_lz}"
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -dq -o in "${in_lz}"
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -dq -o out nx_file.lz
[ $? = 1 ] || test_failed $LINENO
[ ! -e out ] || test_failed $LINENO
# these are for code coverage
"${LZIP}" -lt "${in_lz}" 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdl "${in_lz}" 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdt "${in_lz}" 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -t -- nx_file.lz 2> /dev/null
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -t "" < /dev/null 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..."

for i in "${in_lz}" "${in_em}" ; do
	"${LZIP}" -lq "$i" || test_failed $LINENO "$i"
	"${LZIP}" -t "$i" || test_failed $LINENO "$i"
	"${LZIP}" -d "$i" -o out || test_failed $LINENO "$i"
	cmp in out || test_failed $LINENO "$i"
	"${LZIP}" -cd "$i" > out || test_failed $LINENO "$i"
	cmp in out || test_failed $LINENO "$i"
	"${LZIP}" -d "$i" -o - > out || test_failed $LINENO "$i"
	cmp in out || test_failed $LINENO "$i"
	"${LZIP}" -d < "$i" > out || test_failed $LINENO "$i"
	cmp in out || test_failed $LINENO "$i"
	rm -f out || framework_failure
done

lines=`"${LZIP}" -tvv "${in_em}" 2>&1 | wc -l` || test_failed $LINENO
[ "${lines}" -eq 8 ] || test_failed $LINENO "${lines}"
"${LZIP}" -tq "${in_em}" --empty-error
[ $? = 2 ] || test_failed $LINENO

lines=`"${LZIP}" -lvv "${in_em}" | wc -l` || test_failed $LINENO
[ "${lines}" -eq 11 ] || test_failed $LINENO "${lines}"
"${LZIP}" -lq "${in_em}" --empty-error
[ $? = 2 ] || test_failed $LINENO

cat "${in_lz}" > out.lz || framework_failure
"${LZIP}" -dk out.lz || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out || framework_failure
"${LZIP}" -cd "${fox_lz}" > fox || test_failed $LINENO
cat fox > copy || framework_failure
cat "${in_lz}" > copy.lz || framework_failure
"${LZIP}" -d copy.lz out.lz 2> /dev/null	# skip copy, decompress out
[ $? = 1 ] || test_failed $LINENO
[ ! -e out.lz ] || test_failed $LINENO
cmp fox copy || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -df copy.lz || test_failed $LINENO
[ ! -e copy.lz ] || test_failed $LINENO
cmp in copy || test_failed $LINENO
rm -f copy out || framework_failure

printf "to be overwritten" > out || framework_failure
"${LZIP}" -df -o out < "${in_lz}" || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out || framework_failure
"${LZIP}" -d -o ./- "${in_lz}" || test_failed $LINENO
cmp in ./- || test_failed $LINENO
rm -f ./- || framework_failure
"${LZIP}" -d -o ./- < "${in_lz}" || test_failed $LINENO
cmp in ./- || test_failed $LINENO
rm -f ./- || framework_failure

cat "${in_lz}" > anyothername || framework_failure
"${LZIP}" -dv - anyothername - < "${in_lz}" > out 2> /dev/null ||
	test_failed $LINENO
cmp in out || test_failed $LINENO
cmp in anyothername.out || test_failed $LINENO
rm -f out anyothername.out || framework_failure

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

cat in in > in2 || framework_failure
"${LZIP}" -lq "${in_lz}" "${in_lz}" || test_failed $LINENO
"${LZIP}" -t "${in_lz}" "${in_lz}" || test_failed $LINENO
"${LZIP}" -cd "${in_lz}" "${in_lz}" -o out > out2 || test_failed $LINENO
[ ! -e out ] || test_failed $LINENO			# override -o
cmp in2 out2 || test_failed $LINENO
rm -f out2 || framework_failure
"${LZIP}" -d "${in_lz}" "${in_lz}" -o out2 || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO
rm -f out2 || framework_failure

cat "${in_lz}" "${in_lz}" > out2.lz || framework_failure
printf "\ngarbage" >> out2.lz || framework_failure
"${LZIP}" -tvvvv out2.lz 2> /dev/null || test_failed $LINENO
"${LZIP}" -alq out2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -atq out2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -atq < out2.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -adkq out2.lz
[ $? = 2 ] || test_failed $LINENO
[ ! -e out2 ] || test_failed $LINENO
"${LZIP}" -adkq -o out2 < out2.lz
[ $? = 2 ] || test_failed $LINENO
[ ! -e out2 ] || test_failed $LINENO
printf "to be overwritten" > out2 || framework_failure
"${LZIP}" -df out2.lz || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO
rm -f out2 || framework_failure

for i in 12 5120 6Ki 29 512KiB ; do
	printf "to be overwritten" > out || framework_failure
	"${LZIP}" -df -u$i -o out < "${in_lz}" || test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
	rm -f out || framework_failure
	"${LZIP}" -d -u$i -o out "${in_lz}" || test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
	"${LZIP}" -d -u$i -o out2 "${in_lz}" "${in_lz}" ||
		test_failed $LINENO $i
	cmp in2 out2 || test_failed $LINENO $i
	rm -f out2 || framework_failure
done
rm -f in2 out || framework_failure

"${LZIP}" -cd "${fox6_lz}" > out || test_failed $LINENO
"${LZIP}" -cd "${f6mk_lz}" > copy || test_failed $LINENO
cmp copy out || test_failed $LINENO
rm -f copy out || framework_failure
"${LZIP}" -lq "${f6mk_lz}" --marking-error
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -tq "${f6mk_lz}" --marking-error
[ $? = 2 ] || test_failed $LINENO

"${LZIP}" -d "${fox_lz}" -o a/b/c/fox || test_failed $LINENO
cmp fox a/b/c/fox || test_failed $LINENO
rm -rf a || framework_failure
"${LZIP}" -d -o a/b/c/fox < "${fox_lz}" || test_failed $LINENO
cmp fox a/b/c/fox || test_failed $LINENO
rm -rf a || framework_failure
"${LZIP}" -dq "${fox_lz}" -o a/b/c/
[ $? = 1 ] || test_failed $LINENO
[ ! -e a ] || test_failed $LINENO

printf "\ntesting bad input..."

headers='LZIp LZiP LZip LzIP LzIp LziP lZIP lZIp lZiP lzIP'
body='\001\014\000\203\377\373\377\377\300\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000$\000\000\000\000\000\000\000'
cat "${in_lz}" > int.lz || framework_failure
printf "LZIP${body}" >> int.lz || framework_failure
if "${LZIP}" -tq int.lz ; then
	for header in ${headers} ; do
		printf "${header}${body}" > int.lz || framework_failure
		"${LZIP}" -lq int.lz			# first member
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq < int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -cdq int.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -lq --loose-trailing int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq --loose-trailing int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq --loose-trailing < int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -cdq --loose-trailing int.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO ${header}
		cat "${in_lz}" > int.lz || framework_failure
		printf "${header}${body}" >> int.lz || framework_failure
		"${LZIP}" -lq int.lz			# trailing data
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq < int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -cdq int.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -lq --loose-trailing int.lz ||
			test_failed $LINENO ${header}
		"${LZIP}" -t --loose-trailing int.lz ||
			test_failed $LINENO ${header}
		"${LZIP}" -t --loose-trailing < int.lz ||
			test_failed $LINENO ${header}
		"${LZIP}" -cd --loose-trailing int.lz > /dev/null ||
			test_failed $LINENO ${header}
		"${LZIP}" -lq --loose-trailing --trailing-error int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq --loose-trailing --trailing-error int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq --loose-trailing --trailing-error < int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -cdq --loose-trailing --trailing-error int.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO ${header}
	done
else
	printf "\nwarning: skipping header test: 'printf' does not work on your system."
fi
rm -f int.lz || framework_failure

for i in fox_v2.lz fox_s11.lz fox_de20.lz \
         fox_bcrc.lz fox_crc0.lz fox_das46.lz fox_mes81.lz ; do
	"${LZIP}" -tq "${testdir}"/$i
	[ $? = 2 ] || test_failed $LINENO $i
done

for i in fox_bcrc.lz fox_crc0.lz fox_das46.lz fox_mes81.lz ; do
	"${LZIP}" -cdq "${testdir}"/$i > out
	[ $? = 2 ] || test_failed $LINENO $i
	cmp fox out || test_failed $LINENO $i
done
rm -f fox out || framework_failure

cat "${in_lz}" "${in_lz}" > in2.lz || framework_failure
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}" -tq trunc.lz
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -tq < trunc.lz
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -cdq trunc.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO $i
		"${LZIP}" -dq < trunc.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO $i
	done
else
	printf "\nwarning: skipping truncation test: 'dd' does not work on your system."
fi
rm -f in2.lz in3.lz trunc.lz || framework_failure

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}" -atq ingin.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -atq < ingin.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -acdq ingin.lz > /dev/null
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -adq < ingin.lz > /dev/null
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -t ingin.lz || test_failed $LINENO
"${LZIP}" -t < ingin.lz || test_failed $LINENO
"${LZIP}" -cd ingin.lz > out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -d < ingin.lz > out || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out ingin.lz || framework_failure

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