#!/bin/sh

pass=0
fail=0
skip=0

show_passes=false

if [ "$1" = "-a" ]; then
	show_passes=true
	shift
fi

skipglob="$1"


skip() {
	printf '\033[33mSKIP\033[0m %s (%s)\n' "$testname" "$1"
	skip=$((skip + 1))
}

for testfile in tests/*.bth; do
	outfile=${testfile%.bth}.out
	testname=${testfile#tests/}
	testname=${testname%.bth}
	if [ ! -f "$outfile" ]; then
		skip "no output file"
		continue
	fi
	case "$testname" in
		$skipglob) skip "matches skip glob $skipglob"
				   continue ;;
	esac

	output="$(./bth "$testfile" 2>&1)"
	echo "$output" | diff "$outfile" - >/dev/null
	diff_res=$?
	case $diff_res in
	0) 	if $show_passes; then
			printf '\033[32m\033[1mPASS\033[0m %s\n' "$testname"
		fi
		pass=$((pass + 1)) ;;
	1) 	printf '\033[31m\033[1mFAIL\033[0m %s\n' "$testname"
		printf "\tgot output: %s\n" "$(echo "$output" | head -n4)"
		printf "\texpected: "
		cat "$outfile"
		fail=$((fail + 1)) ;;
	esac
done

echo

pnum () {
	if [ "$1" -eq 0 ]; then
		printf "0 %s; " "$2"
	else
		printf "\033[3%dm%d\033[0m %s; " "$3" "$1" "$2"
	fi
}

pnum $pass passed 2
pnum $fail failed 1
pnum $skip skipped 3

printf "%s total\n" $((pass + fail + skip))

if [ $fail -eq 0 ]; then
	exit 0
else
	exit 1
fi