1'use strict'; 2 3const common = require('../common'); 4const assert = require('assert'); 5const dgram = require('dgram'); 6 7const client = dgram.createSocket('udp4'); 8 9const onMessage = common.mustCall(common.mustCall((err, bytes) => { 10 assert.ifError(err); 11 assert.strictEqual(bytes, buf1.length + buf2.length); 12})); 13 14const buf1 = Buffer.alloc(256, 'x'); 15const buf2 = Buffer.alloc(256, 'y'); 16 17client.on('listening', common.mustCall(function() { 18 const toSend = [buf1, buf2]; 19 client.connect(client.address().port, common.mustCall(() => { 20 client.send(toSend, onMessage); 21 })); 22})); 23 24client.on('message', common.mustCall(function onMessage(buf, info) { 25 const expected = Buffer.concat([buf1, buf2]); 26 assert.ok(buf.equals(expected), 'message was received correctly'); 27 client.close(); 28})); 29 30client.bind(0); 31