#! /bin/sh
# check script for Xlunzip - Test tool for the lzip_decompress linux module
# Copyright (C) 2016-2026 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}"/xlunzip
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

cp "${testdir}"/test.txt in || framework_failure
in_lz="${testdir}"/test.txt.lz
em_lz="${testdir}"/em.lz
fox_lz="${testdir}"/fox.lz
fnz_lz="${testdir}"/fox_nz.lz
fail=0
test_failed() { fail=1 ; printf " $1" ; [ -z "$2" ] || printf "($2)" ; }

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

"${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}" -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..."

"${LZIP}" -t "${in_lz}" || test_failed $LINENO
"${LZIP}" -d "${in_lz}" -o out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -cd "${in_lz}" > out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -d "${in_lz}" -o - > out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -d < "${in_lz}" > out || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out || framework_failure

cp "${in_lz}" out.lz || framework_failure
"${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 $LINENO
cp fox copy || framework_failure
cp "${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 $LINENO
"${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

cp "${in_lz}" anyothername || framework_failure
"${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 anyothername.out || framework_failure

"${LZIP}" -tq in "${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 $LINENO
rm -f out || framework_failure
cp "${in_lz}" out.lz || framework_failure
"${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
"${LZIP}" -t "${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
lines=`"${LZIP}" -tvv out2.lz 2>&1 | wc -l` || test_failed $LINENO
[ "${lines}" -eq 1 ] || test_failed $LINENO "${lines}"

printf "\ngarbage" >> out2.lz || framework_failure
"${LZIP}" -tvvvv out2.lz 2> /dev/null || test_failed $LINENO
printf "to be overwritten" > out2 || framework_failure
"${LZIP}" -df out2.lz || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO

touch empty || framework_failure
cp "${em_lz}" em.lz || framework_failure
"${LZIP}" -dk em.lz || test_failed $LINENO
cmp empty em || test_failed $LINENO

printf "\ntesting bad input..."

cat em.lz em.lz | "${LZIP}" -tq
[ $? = 2 ] || test_failed $LINENO
cat em.lz em.lz | "${LZIP}" -dq > em
[ $? = 2 ] || test_failed $LINENO
cmp empty em || test_failed $LINENO
cat em.lz "${in_lz}" | "${LZIP}" -tq
[ $? = 2 ] || test_failed $LINENO
cat em.lz "${in_lz}" | "${LZIP}" -dq > out
[ $? = 2 ] || test_failed $LINENO
cmp in out || test_failed $LINENO
cat "${in_lz}" em.lz | "${LZIP}" -tq
[ $? = 2 ] || test_failed $LINENO
cat "${in_lz}" em.lz | "${LZIP}" -dq > out
[ $? = 2 ] || test_failed $LINENO
cmp in out || test_failed $LINENO
cat em.lz em.lz > ee.lz || framework_failure
"${LZIP}" -tq < ee.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -dq < ee.lz > em
[ $? = 2 ] || test_failed $LINENO
cmp empty em || test_failed $LINENO
"${LZIP}" -tq ee.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -dq ee.lz
[ $? = 2 ] || test_failed $LINENO
[ ! -e ee ] || test_failed $LINENO
"${LZIP}" -cdq ee.lz > em
[ $? = 2 ] || test_failed $LINENO
cmp empty em || test_failed $LINENO
rm -f em || framework_failure
cat "${in_lz}" em.lz "${in_lz}" > inein.lz || framework_failure
"${LZIP}" -tq < inein.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -dq < inein.lz > out2
[ $? = 2 ] || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO
"${LZIP}" -tq inein.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -dq inein.lz
[ $? = 2 ] || test_failed $LINENO
[ ! -e inein ] || test_failed $LINENO
"${LZIP}" -cdq inein.lz > out2
[ $? = 2 ] || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO
rm -f out2 inein.lz em.lz || framework_failure

headers='LZIp LZiP LZip LzIP LzIp LziP lZIP lZIp lZiP lzIP'
body='\001\014\000\000\101\376\367\377\377\340\000\200\000\215\357\002\322\001\000\000\000\000\000\000\000\045\000\000\000\000\000\000\000'
cp "${in_lz}" int.lz || framework_failure
printf "LZIP${body}" >> int.lz || framework_failure
if "${LZIP}" -t int.lz ; then
	for header in ${headers} ; do
		printf "${header}${body}" > int.lz || framework_failure
		"${LZIP}" -tq int.lz			# first member
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -tq < int.lz
		[ $? = 2 ] || test_failed $LINENO ${header}
		"${LZIP}" -cdq int.lz > /dev/null
		[ $? = 2 ] || test_failed $LINENO ${header}
		cp "${in_lz}" int.lz || framework_failure
		printf "${header}${body}" >> int.lz || framework_failure
		"${LZIP}" -tq int.lz			# trailing data
		[ $? = 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}
	done
else
	printf "warning: skipping header test: 'printf' does not work on your system."
fi
rm -f int.lz || framework_failure

"${LZIP}" -tq "${fnz_lz}"
[ $? = 2 ] || test_failed $LINENO

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 || framework_failure

cat "${in_lz}" "${in_lz}" > in2.lz || framework_failure
cat "${in_lz}" "${in_lz}" "${in_lz}" > in3.lz || framework_failure
if dd if=in3.lz of=trunc.lz bs=14682 count=1 2> /dev/null &&
   [ -e trunc.lz ] && cmp in2.lz trunc.lz ; then
	for i in 6 20 14664 14683 14684 14685 14686 14687 14688 ; do
		dd if=in3.lz of=trunc.lz bs=$i count=1 2> /dev/null
		"${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 "warning: skipping truncation test: 'dd' does not work on your system."
fi
rm -f trunc.lz || framework_failure

cp "${in_lz}" ingin.lz || framework_failure
printf "g" >> ingin.lz || framework_failure
cat "${in_lz}" >> ingin.lz || framework_failure
"${LZIP}" -t ingin.lz || test_failed $LINENO
"${LZIP}" -t < ingin.lz || test_failed $LINENO
"${LZIP}" -dk ingin.lz || test_failed $LINENO
cmp in ingin || 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

printf "\ntesting linux options..."

for i in "" =1 =2 =4 =16 =64 =256 =1024 =4096 =16384 =65536 ; do
	"${LZIP}" -t --insize$i "${in_lz}" || test_failed $LINENO $i
	"${LZIP}" -cd --insize$i "${in_lz}" > out || test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
done

for i in =1 =2 =4 =16 =64 =256 =1024 =4096 ; do
	"${LZIP}" -tq --insize$i --nofill "${in_lz}"
	[ $? = 2 ] || test_failed $LINENO $i
	"${LZIP}" -cdq --insize$i --nofill "${in_lz}" > out
	[ $? = 2 ] || test_failed $LINENO $i
	cmp -s in out && test_failed $LINENO $i
done

for i in "" =16384 =65_536 ; do
	"${LZIP}" -t --insize$i --nofill "${in_lz}" || test_failed $LINENO $i
	"${LZIP}" -cd --insize$i --nofill "${in_lz}" > out ||
		test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
done

for i in =18KiB =0x10_000 =262_144 ; do
	"${LZIP}" -t --outsize$i "${in_lz}" || test_failed $LINENO $i
	"${LZIP}" -cd --outsize$i "${in_lz}" > out ||
		test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
done

for i in =36301 =0200_000 =262144 ; do
	"${LZIP}" -t --outsize$i --noflush "${in_lz}" ||
		test_failed $LINENO $i
	"${LZIP}" -cd --outsize$i --noflush "${in_lz}" > out ||
		test_failed $LINENO $i
	cmp in out || test_failed $LINENO $i
done

for i in =36300 ; do
	"${LZIP}" -tq --outsize$i --noflush "${in_lz}"
	[ $? = 1 ] || test_failed $LINENO $i
	"${LZIP}" -cdq --outsize$i --noflush "${in_lz}" > out
	[ $? = 1 ] || test_failed $LINENO $i
	cmp -s in out && test_failed $LINENO $i
done

for i in =4096 =16384 ; do
	"${LZIP}" -tq --outsize$i --noflush "${in_lz}"
	[ $? = 2 ] || test_failed $LINENO $i
	"${LZIP}" -cdq --outsize$i --noflush "${in_lz}" > out
	[ $? = 2 ] || test_failed $LINENO $i
	cmp -s in out && test_failed $LINENO $i
done

"${LZIP}" -t --insize --outsize=36388 --nofill --noflush "${in_lz}" ||
	test_failed $LINENO
"${LZIP}" -cd --insize --outsize=36388 --nofill --noflush "${in_lz}" > out ||
	test_failed $LINENO
cmp in out || test_failed $LINENO

"${LZIP}" -tq --nofill "${in_lz}"
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -cdq --nofill "${in_lz}" > out
[ $? = 2 ] || test_failed $LINENO
cmp -s in out && test_failed $LINENO
"${LZIP}" -tq --noflush "${in_lz}"
[ $? = 1 ] || test_failed $LINENO
"${LZIP}" -cdq --noflush "${in_lz}" > out
[ $? = 1 ] || test_failed $LINENO
cmp -s in out && test_failed $LINENO

# decompress in place
rm -f out out2 || framework_failure
"${LZIP}" -t --in-place "${in_lz}" || test_failed $LINENO
"${LZIP}" -t --in-place < "${in_lz}" || test_failed $LINENO
"${LZIP}" -d --in-place "${in_lz}" -o out || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out || framework_failure
"${LZIP}" -d --in-place < "${in_lz}" -o out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -cd --in-place "${in_lz}" > out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -cd --in-place < "${in_lz}" > out || test_failed $LINENO
cmp in out || test_failed $LINENO
"${LZIP}" -t --in-place "${in_lz}" "${in_lz}" || test_failed $LINENO
"${LZIP}" -d --in-place "${in_lz}" "${in_lz}" -o out2 || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO
"${LZIP}" -cd --in-place "${in_lz}" "${in_lz}" > out2 || test_failed $LINENO
cmp in2 out2 || test_failed $LINENO

# decompress multimember in place
cat in in in > in3 || framework_failure
for i in in2 in3 ; do
	"${LZIP}" -t --in-place $i.lz || test_failed $LINENO
	"${LZIP}" -t --in-place < $i.lz || test_failed $LINENO
	rm -f out || framework_failure
	"${LZIP}" -d --in-place $i.lz -o out || test_failed $LINENO
	cmp $i out || test_failed $LINENO
	rm -f out || framework_failure
	"${LZIP}" -d --in-place < $i.lz -o out || test_failed $LINENO
	cmp $i out || test_failed $LINENO
	"${LZIP}" -cd --in-place $i.lz > out || test_failed $LINENO
	cmp $i out || test_failed $LINENO
	"${LZIP}" -cd --in-place < $i.lz > out || test_failed $LINENO
	cmp $i out || test_failed $LINENO
done
"${LZIP}" -tq --in-place ingin.lz
[ $? = 2 ] || test_failed $LINENO
rm -f out2 ingin.lz in2 in2.lz in3 in3.lz || framework_failure

cat "${in_lz}" "${em_lz}" > ine.lz || framework_failure
"${LZIP}" -tq --in-place ine.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -cdq --in-place ine.lz > out
[ $? = 2 ] || test_failed $LINENO
cmp empty out || test_failed $LINENO
cat "${em_lz}" "${in_lz}" > ine.lz || framework_failure
"${LZIP}" -tq --in-place ine.lz
[ $? = 2 ] || test_failed $LINENO
"${LZIP}" -cdq --in-place ine.lz > out
[ $? = 2 ] || test_failed $LINENO
cmp empty out || test_failed $LINENO
rm -f ine.lz empty || framework_failure

# decompress with trailing data in place
cat "${in_lz}" in in in in > int.lz || framework_failure
"${LZIP}" -t --in-place int.lz || test_failed $LINENO
"${LZIP}" -cd --in-place int.lz > out || test_failed $LINENO
cmp in out || test_failed $LINENO
rm -f out int.lz || framework_failure

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