text: "use strict";
  
  /*<replacement>*/
  require('@babel/polyfill');
  
  var util = require('util');
  
  for (var i in util) {
    exports[i] = util[i];
  }
  /*</replacement>*/
  
  /* eslint-disable node-core/required-modules */
  
  
  'use strict';
  /*<replacement>*/
  
  
  var objectKeys = objectKeys || function (obj) {
    var keys = [];
  
    for (var key in obj) {
      keys.push(key);
    }
  
    return keys;
  };
  /*</replacement>*/
  // Utilities for internet-related tests
  
  
  var addresses = {
    // A generic host that has registered common DNS records,
    // supports both IPv4 and IPv6, and provides basic HTTP/HTTPS services
    INET_HOST: 'nodejs.org',
    // A host that provides IPv4 services
    INET4_HOST: 'nodejs.org',
    // A host that provides IPv6 services
    INET6_HOST: 'nodejs.org',
    // An accessible IPv4 IP,
    // defaults to the Google Public DNS IPv4 address
    INET4_IP: '8.8.8.8',
    // An accessible IPv6 IP,
    // defaults to the Google Public DNS IPv6 address
    INET6_IP: '2001:4860:4860::8888',
    // An invalid host that cannot be resolved
    // See https://tools.ietf.org/html/rfc2606#section-2
    INVALID_HOST: 'something.invalid',
    // A host with MX records registered
    MX_HOST: 'nodejs.org',
    // A host with SRV records registered
    SRV_HOST: '_jabber._tcp.google.com',
    // A host with PTR records registered
    PTR_HOST: '8.8.8.8.in-addr.arpa',
    // A host with NAPTR records registered
    NAPTR_HOST: 'sip2sip.info',
    // A host with SOA records registered
    SOA_HOST: 'nodejs.org',
    // A host with CNAME records registered
    CNAME_HOST: 'blog.nodejs.org',
    // A host with NS records registered
    NS_HOST: 'nodejs.org',
    // A host with TXT records registered
    TXT_HOST: 'nodejs.org',
    // An accessible IPv4 DNS server
    DNS4_SERVER: '8.8.8.8',
    // An accessible IPv4 DNS server
    DNS6_SERVER: '2001:4860:4860::8888'
  };
  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;
  
  try {
    for (var _iterator = objectKeys(addresses)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var key = _step.value;
      var envName = "NODE_TEST_".concat(key);
  
      if (process.env[envName]) {
        addresses[key] = process.env[envName];
      }
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return != null) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }
  
  module.exports = {
    addresses: addresses
  };
  
  function forEach(xs, f) {
    for (var i = 0, l = xs.length; i < l; i++) {
      f(xs[i], i);
    }
  }