nodejs/test/simple/test-net-write-slow.js

// Copyright Joyent, Inc. and other Node contributors.
//
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// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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var common = require('../common');
var assert = require('assert');
var net = require('net');

var SIZE = 1E5;
var N = 10;
var received = 0;
var buf = new Buffer(SIZE);
buf.fill(0x61); // 'a'

var server = net.createServer(function(socket) {
  socket.setNoDelay();
  socket.setTimeout(500);
  socket.on('timeout', function() {
    assert.fail();
  });

  for (var i = 0; i < N; ++i) {
    socket.write(buf);
  }
  socket.end();

}).listen(common.PORT, function() {
  var conn = net.connect(common.PORT);
  conn.on('data', function(buf) {
    received += buf.length;
    conn.pause();
    setTimeout(function() {
      conn.resume();
    }, 50);
  });
  conn.on('end', function() {
    server.close();
  });
});

process.on('exit', function() {
  assert.equal(received, SIZE * N);
});