'use strict'; const common = require('../common'); const assert = require('assert'); const dgram = require('dgram'); const socket = dgram.createSocket('udp4'); const data = ['foo', 'bar', 'baz']; socket.on('message', common.mustCall((msg, rinfo) => { socket.close(); assert.deepStrictEqual(msg.toString(), data.join('')); })); socket.bind(() => socket.send(data, socket.address().port, 'localhost'));