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


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'use strict';

// This tests that the error thrown from net.createConnection
// comes with host and port properties.
// See https://github.com/nodejs/node-v0.x-archive/issues/7005

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

const { addresses } = require('../common/internet');
const {
  errorLookupMock,
  mockedErrorCode
} = require('../common/dns');

// Using port 0 as hostname used is already invalid.
const c = net.createConnection({
  port: 0,
  host: addresses.INVALID_HOST,
  lookup: common.mustCall(errorLookupMock())
});

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

c.on('error', common.mustCall((error) => {
  assert.ok(!('port' in error));
  assert.ok(!('host' in error));
  assert.throws(() => { throw error; }, {
    errno: mockedErrorCode,
    code: mockedErrorCode,
    name: 'Error',
    message: 'getaddrinfo ENOTFOUND something.invalid',
    hostname: addresses.INVALID_HOST,
    syscall: 'getaddrinfo'
  });
}));