node/test/parallel/test-http-pipeline-requests-connection-leak.js

'use strict';
require('../common');
const Countdown = require('../common/countdown');

// This test ensures Node.js doesn't behave erratically when receiving pipelined
// requests
// https://github.com/nodejs/node/issues/3332

const http = require('http');
const net = require('net');

const big = Buffer.alloc(16 * 1024, 'A');

const COUNT = 1e4;

const countdown = new Countdown(COUNT, () => {
  server.close();
  client.end();
});

let client;
const server = http
  .createServer(function(req, res) {
    res.end(big, function() {
      countdown.dec();
    });
  })
  .listen(0, function() {
    const req = 'GET / HTTP/1.1\r\n\r\n'.repeat(COUNT);
    client = net.connect(this.address().port, function() {
      client.write(req);
    });
    client.resume();
  });