node/test/parallel/test-net-better-error-messages-port-hostname.js

'use strict';
const common = require('../common');
const net = require('net');
const assert = require('assert');

const c = net.createConnection(common.PORT, '***');

c.on('connect', common.fail);

c.on('error', common.mustCall(function(e) {
  assert.strictEqual(e.code, 'ENOTFOUND');
  assert.strictEqual(e.port, common.PORT);
  assert.strictEqual(e.hostname, '***');
}));