#! /bin/sh
# check script for Lzd - Educational decompressor for lzip files
# Copyright (C) 2013-2016 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}"/lzd
framework_failure() { echo "failure in testing framework" ; exit 1 ; }

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

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

in="${testdir}"/test.txt
in_lz="${testdir}"/test.txt.lz
fail=0

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

"${LZIP}" < "${in}" 2> /dev/null
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi
dd if="${in_lz}" bs=1 count=6 2> /dev/null | "${LZIP}" 2> /dev/null
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi
dd if="${in_lz}" bs=1 count=20 2> /dev/null | "${LZIP}" > /dev/null 2>&1
if [ $? = 2 ] ; then printf . ; else printf - ; fail=1 ; fi

"${LZIP}" < "${in_lz}" > copy || fail=1
cmp "${in}" copy || fail=1
printf .

cat "${in}" "${in}" > in2 || framework_failure
cat "${in_lz}" "${in_lz}" | "${LZIP}" > copy2 || fail=1
cmp in2 copy2 || fail=1
printf .

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