1'use strict';
2require('../common');
3const assert = require('assert');
4const net = require('net');
5const dgram = require('dgram');
6
7assert.ok((new net.Server()).ref() instanceof net.Server);
8assert.ok((new net.Server()).unref() instanceof net.Server);
9assert.ok((new net.Socket()).ref() instanceof net.Socket);
10assert.ok((new net.Socket()).unref() instanceof net.Socket);
11assert.ok((new dgram.Socket('udp4')).ref() instanceof dgram.Socket);
12assert.ok((new dgram.Socket('udp6')).unref() instanceof dgram.Socket);
13