#! /bin/sh

# check script for GNU ed - The GNU line editor

# Copyright (C) 2006-2017 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`

ED="${objdir}"/ed

framework_failure() { echo "failure in testing framework" ; exit 1 ; }

if [ ! -f "${ED}" ] || [ ! -x "${ED}" ] ; then

	echo "${ED}: cannot execute"

	exit 1

fi

if [ -d tmp ] ; then rm -rf tmp ; fi

mkdir tmp

cd "${objdir}"/tmp || framework_failure

cat "${testdir}"/test.txt > test.txt || framework_failure

cat "${testdir}"/test.bin > test.bin || framework_failure

touch zero || framework_failure

fail=0

printf "testing ed-%s...\n" "$2"

# Run the .err scripts first with a regular file connected to standard

# input, since these don't generate output; they exit with non-zero status.

for i in "${testdir}"/*.err ; do

	if "${ED}" -s test.txt < "$i" > /dev/null 2>&1 ; then

		echo "*** The script $i exited abnormally ***"

		fail=127

	fi

done

# Run the .err scripts again with a regular file connected to standard

# input, but with '--loose-exit-status'; they should exit with zero status.

for i in "${testdir}"/*.err ; do

	if "${ED}" -sl test.txt < "$i" > /dev/null 2>&1 ; then

		true

	else

		echo "*** The script $i failed '--loose-exit-status' ***"

		fail=127

	fi

done

# Run the .err scripts again as pipes - these should exit with non-zero

# status without altering the contents of the buffer; the produced

# 'out.ro' must be identical to 'test.txt'.

for i in "${testdir}"/*.err ; do

	base=`echo "$i" | sed 's,^.*/,,;s,\.err$,,'`	# remove dir and ext

	if cat "$i" | "${ED}" -s test.txt > /dev/null 2>&1 ; then

		echo "*** The piped script $i exited abnormally ***"

		fail=127

	else

		if cmp -s out.ro test.txt ; then

			true

		else

			mv -f out.ro ${base}.ro

			echo "*** Output ${base}.ro of piped script $i is incorrect ***"

			fail=127

		fi

	fi

	rm -f out.ro

done

# Run the .ed scripts and compare their output against the .r files,

# which contain the correct output.

# The .ed scripts should exit with zero status.

for i in "${testdir}"/*.ed ; do

	base=`echo "$i" | sed 's,^.*/,,;s,\.ed$,,'`	# remove dir and ext

	if "${ED}" -s test.txt < "$i" > /dev/null 2> out.log ; then

		if cmp -s out.o "${testdir}"/${base}.r ; then

			true

		else

			mv -f out.o ${base}.o

			echo "*** Output ${base}.o of script $i is incorrect ***"

			fail=127

		fi

	else

		mv -f out.log ${base}.log

		echo "*** The script $i exited abnormally ***"

		fail=127

	fi

	rm -f out.o out.log

done

rm -f test.txt test.bin zero

if [ ${fail} = 0 ] ; then

	echo "tests completed successfully."

	cd "${objdir}" && rm -r tmp

else

	echo "tests failed."

	echo "Please, send a bug report to bug-ed@gnu.org."

	echo "Include the (compressed) contents of '${objdir}/tmp' in the report."

fi

exit ${fail}