package main

import (
	"fmt"
	"net"
	"testing"
)

func TestParseRange(t *testing.T) {
	expected := []int{0, 1, 2, 6}
	actual := parseRange("0-2,-5,6,-7-7,1, 11", 10)
	if fmt.Sprint(expected) != fmt.Sprint(actual) {
		t.Errorf("unexpected %#v\n", actual)
	}
}

func TestParseRangeEmpty(t *testing.T) {
	expectedLen := 0
	actual := parseRange("", 10)
	if expectedLen != len(actual) {
		t.Errorf("unexpected %#v\n", actual)
	}
}

func TestParseIP(t *testing.T) {
	var ip net.IP
	if err := ip.UnmarshalText([]byte("127.0.0.1")); err != nil {
		t.Error(err)
	}
	if ip.To4() == nil {
		t.Error("Failed to parse ipv4")
	}
	if ip.To16() == nil {
		t.Error("Failed to parse as ipv6")
	}

	if err := ip.UnmarshalText([]byte("::1")); err != nil {
		t.Error(err)
	}
	if ip.To16() == nil {
		t.Error("Failed to parse ipv6")
	}
	if ip.To4() != nil {
		t.Error("ipv6 parsed as ipv4")
	}
}