nodejs/test/parallel/test-net-connect-local-error.js

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

const server = net.createServer();
server.listen(0);
const port = server.address().port;
const client = net.connect({
  port: port + 1,
  localPort: port,
  localAddress: common.localhostIPv4
});

client.on('error', common.mustCall(function onError(err) {
  assert.strictEqual(
    err.localPort,
    port,
    `${err.localPort} !== ${port} in ${err}`
  );
  assert.strictEqual(
    err.localAddress,
    common.localhostIPv4,
    `${err.localAddress} !== ${common.localhostIPv4} in ${err}`
  );
}));
server.close();