test/parallel/test-net-connect-immediate-finish.js

// Copyright Joyent, Inc. and other Node contributors.
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'use strict';

// This tests that if the socket is still in the 'connecting' state
// when the user calls socket.end() ('finish'), the socket would emit
// 'connect' and defer the handling until the 'connect' event is handled.

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

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

const client = net.connect({
  host: addresses.INVALID_HOST,
  port: 80, // Port number doesn't matter because host name is invalid
  lookup: common.mustCall(errorLookupMock())
}, common.mustNotCall());

client.once('error', common.mustCall((error) => {
  // TODO(BridgeAR): Add a better way to handle not defined properties using
  // `assert.throws(fn, object)`.
  assert.ok(!('port' in error));
  assert.ok(!('host' in error));
  assert.throws(() => { throw error; }, {
    code: mockedErrorCode,
    errno: mockedErrorCode,
    syscall: mockedSysCall,
    hostname: addresses.INVALID_HOST,
    message: 'getaddrinfo ENOTFOUND something.invalid'
  });
}));

client.end();