node/test/simple/test-pipe.js

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

var webPort = common.PORT
var tcpPort = webPort + 1;

var listenCount = 0;
var gotThanks = false;
var tcpLengthSeen = 0;
var bufferSize = 5 * 1024 * 1024;


/*
 * 5MB of random buffer.
 */
var buffer = Buffer(bufferSize);
for (var i = 0; i < buffer.length; i++) {
  buffer[i] = parseInt(Math.random()*10000) % 256;
}


var web = http.Server(function (req, res) {
  web.close();

  console.log(req.headers);

  var socket = net.Stream();
  socket.connect(tcpPort);
  
  socket.on('connect', function () {
    console.log('socket connected');
  });

  req.pipe(socket);

  req.on('end', function () {
    res.writeHead(200);
    res.write("thanks");
    res.end();
    console.log("response with 'thanks'");
  });

  req.connection.on('error', function (e) {
    console.log("http server-side error: " + e.message);
    process.exit(1);
  });
});
web.listen(webPort, startClient);



var tcp = net.Server(function (s) {
  tcp.close();

  console.log("tcp server connection");

  var i = 0;

  s.on('data', function (d) {
    process.stdout.write(".");
    tcpLengthSeen += d.length;
    for (var j = 0; j < d.length; j++) {
      assert.equal(buffer[i], d[j]);
      i++;
    }
  });

  s.on('end', function () {
    console.log("tcp socket disconnect");
    s.end();
  });

  s.on('error', function (e) {
    console.log("tcp server-side error: " + e.message);
    process.exit(1);
  });
});
tcp.listen(tcpPort, startClient);


function startClient () {
  listenCount++;
  if (listenCount < 2) return;

  console.log("Making request");

  var client = http.createClient(common.PORT);
  var req = client.request('GET', '/', { 'content-length': buffer.length });
  req.write(buffer);
  req.end();

  req.on('response', function (res) {
    console.log('Got response');
    res.setEncoding('utf8');
    res.on('data', function (string) {
      assert.equal("thanks", string);
      gotThanks = true;
    });
  });
}

process.on('exit', function () {
  assert.ok(gotThanks);
  assert.equal(bufferSize, tcpLengthSeen);
});