#!/usr/bin/env bash

print_help() {
	echo "$1 [-a] [-i ITERATIONS] [-m MAXFAILS] [-s SEED] [TEST]..."
}

run_test() {
	local result name=$1 seed=$2

	CLKNETSIM_RANDOM_SEED=$seed ./$name
	result=$?

	if [ $result -ne 0 -a $result -ne 9 ]; then
		if [ $abort_on_fail -ne 0 ]; then
			echo 1>&2
			echo Failed with random seed $seed 1>&2
			exit 1
		fi
		failed_seeds=(${failed_seeds[@]} $seed)
	fi

	return $result
}

abort_on_fail=0
iterations=1
max_fails=0
random_seed=${CLKNETSIM_RANDOM_SEED:-$RANDOM}

while getopts ":ai:m:s:" opt; do
	case $opt in
		a) abort_on_fail=1;;
		i) iterations=$OPTARG;;
		m) max_fails=$OPTARG;;
		s) random_seed=$OPTARG;;
		*) print_help "$0"; exit 3;;
	esac
done

shift $[$OPTIND - 1]

passed=() failed=() skipped=() failed_seeds=()

[ $# -gt 0 ] && tests=($@) || tests=([0-9]*-*[^_])

for test in "${tests[@]}"; do
	if [ $iterations -gt 1 ]; then
		printf "%-30s" "$test"
		fails=0
		for i in $(seq 1 $iterations); do
			run_test $test $[$random_seed + $i - 1] > /dev/null
			case $? in
				0) echo -n ".";;
				9) break;;
				*) echo -n "x"; fails=$[$fails + 1];;
			esac
		done
		if [ $i -lt $iterations ]; then
			printf "%${iterations}s" ""
			echo " SKIP"
			result=9
		elif [ $fails -gt $max_fails ]; then
			echo " FAIL"
			result=1
		else
			echo " PASS"
			result=0
		fi
	else
		printf "%s   " "$test"
		run_test $test $random_seed
		result=$?
		echo
	fi

	case $result in
		0) passed=(${passed[@]} $test);;
		9) skipped=(${skipped[@]} $test);;
		*) failed=(${failed[@]} $test);;
	esac
done

echo
echo "SUMMARY:"
echo "  TOTAL  $[${#passed[@]} + ${#failed[@]} + ${#skipped[@]}]"
echo "  PASSED ${#passed[@]}"
echo "  FAILED ${#failed[@]}    (${failed[@]}) (${failed_seeds[@]})"
echo "  SKIPPED ${#skipped[@]}   (${skipped[@]})"

[ ${#failed[@]} -eq 0 ]