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
49
50
51
52
53
54
55
56
57
// 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
'use strict';const common = require('../common');const assert = require('assert');const dgram = require('dgram');const dns = require('dns');
{  // Verify that the provided lookup function is called.  const lookup = common.mustCall((host, family, callback) => {    dns.lookup(host, family, callback);  });
  const socket = dgram.createSocket({ type: 'udp4', lookup });
  socket.bind(common.mustCall(() => {    socket.close();  }));}
// TODO: unable to overwrite imports with spies// {//   // Verify that lookup defaults to dns.lookup().//   const originalLookup = dns.lookup;
//   dns.lookup = common.mustCall((host, family, callback) => {//     dns.lookup = originalLookup;//     originalLookup(host, family, callback);//   });
//   const socket = dgram.createSocket({ type: 'udp4' });
//   socket.bind(common.mustCall(() => {//     socket.close();//   }));// }
{  // Verify that non-functions throw.  [null, true, false, 0, 1, NaN, '', 'foo', {}, Symbol()].forEach((value) => {    assert.throws(() => {      dgram.createSocket({ type: 'udp4', lookup: value });    }, {      code: 'ERR_INVALID_ARG_TYPE',      name: 'TypeError',      message: 'The "lookup" argument must be of type function.' +               common.invalidArgTypeHelper(value)    });  });}