test-net-write-after-close.js

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.

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

const net = require('net');

let serverSocket;

const server = net.createServer(common.mustCall(function(socket) {
  serverSocket = socket;

  socket.resume();

  socket.on('error', common.mustNotCall());
}));

server.listen(0, function() {
  const client = net.connect(this.address().port, function() {
    // client.end() will close both the readable and writable side
    // of the duplex because allowHalfOpen defaults to false.
    // Then 'end' will be emitted when it receives a FIN packet from
    // the other side.
    client.on('end', common.mustCall(() => {
      serverSocket.write('test', common.mustCall((err) => {
        assert(err);
        server.close();
      }));
    }));
    client.end();
  });
});