#!/bin/bash

cd -- "$(dirname "$0")"
if test -z "$REV"; then
	REV=../rev
fi
N=5
r="$PREFIX $REV"

report ()
{
	if test $1 = 0; then
		printf "\033[1;32mTest %s OK\033[m\n" "$2"
	else
		printf "\033[1;31mTest %s FAILED\033[m\n" "$2"
	fi
}

report_np ()
{
	if test $1 = 0; then
		printf "\033[1;32mTest %s OK (NON-STANDARD)\033[m\n" "$2"
	else
		printf "\033[1;31mTest %s FAILED (NON-STANDARD)\033[m\n" "$2"
	fi
}

test_file ()
{
	diff <($r < $1.in) $1.out > /dev/null
	report $? "file_$1"
}


file_1 () { test_file 1; }
file_2 () { test_file 2; }
file_3 () { test_file 3; }
file_4 () { test_file 4; }
file_5 () { test_file 5; }

nolf ()
{
	diff <($r < nolf.in) nolf.out > /dev/null
	report_np $? "nolf"
}

utf8 ()
{
	diff <($r < utf8.in) utf8.out > /dev/null
	report $? "utf8"
}

dash ()
{
	diff <($r - < 4.in) 4.out > /dev/null
	report $? "dash"
}

file_one ()
{
	diff <($r 4.in) 4.out > /dev/null
	report $? "file_one"
}

file_many ()
{
	diff <($r 1.in 2.in 3.in 4.in 5.in) 12345.out > /dev/null
	report $? "file_many"
}

file_dash ()
{
	diff <($r 1.in 2.in 3.in 4.in - < 5.in) 12345.out > /dev/null
	report $? "file_dash"
}

ddash ()
{
	diff <($r -- 4.in) 4.out > /dev/null
	report $? "ddash"
}

combining ()
{
	diff <($r < comb.in) comb.out > /dev/null
	report_np $? "combining"
	# How would you define “character”?
}


if test $# = 0; then
	set $(printf 'file_%i\n' $(seq $N)) dash nolf utf8 file_one file_many file_dash ddash combining
fi
(
for f in $@; do
	$f
done
) | tee result
! grep FAILED < result > /dev/null
ret=$?
if test $ret != 0; then
	if test $(grep FAILED < result | grep -v NON-STANDARD | wc -l) = 0; then
		ret=1
	else
		ret=2
	fi
fi
rm result
exit $ret