1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
// deno-fmt-ignore-file// deno-lint-ignore-file
// Copyright Joyent and Node contributors. All rights reserved. MIT license.// Taken from Node 16.13.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
// TODO(cmorten): uncomment dns module code once dns.setServer() has been// implemented
'use strict';const common = require('../common');const mustCall = common.mustCall;const assert = require('assert');const dgram = require('dgram');// const dns = require('dns');
const socket = dgram.createSocket('udp4');const buffer = Buffer.from('gary busey');
// dns.setServers([]);
socket.once('error', onEvent);
// assert that:// * callbacks act as "error" listeners if given.// * error is never emitter for missing dns entries//   if a callback that handles error is present// * error is emitted if a callback with no argument is passedsocket.send(buffer, 0, buffer.length, 100,            'dne.example.com', mustCall(callbackOnly));
function callbackOnly(err) {  assert.ok(err);  socket.removeListener('error', onEvent);  socket.on('error', mustCall(onError));  socket.send(buffer, 0, buffer.length, 100, 'dne.invalid');}
function onEvent(err) {  assert.fail(`Error should not be emitted if there is callback: ${err}`);}
function onError(err) {  assert.ok(err);  socket.close();}