node/test/parallel/test-http-keep-alive-drop-requests.js

'use strict';

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

function request(socket) {
  socket.write('GET / HTTP/1.1\r\n');
  socket.write('Connection: keep-alive\r\n');
  socket.write('Host: localhost\r\n');
  socket.write('\r\n\r\n');
}

const server = http.createServer(common.mustCall((req, res) => {
  res.end('ok');
}));

server.on('dropRequest', common.mustCall((request, socket) => {
  assert.strictEqual(request instanceof http.IncomingMessage, true);
  assert.strictEqual(socket instanceof net.Socket, true);
  server.close();
}));

server.listen(0, common.mustCall(() => {
  const socket = net.connect(server.address().port);
  socket.on('connect', common.mustCall(() => {
    request(socket);
    request(socket);
  }));
  socket.on('data', common.mustCallAtLeast());
  socket.on('close', common.mustCall());
}));

server.maxRequestsPerSocket = 1;