text: var common = require('../common');
  var assert = require('assert');
  var net = require('net');
  
  
  // With only a callback, server should get a port assigned by the OS
  
  var address0;
  var server0 = net.createServer(function(socket) { });
  
  server0.listen(function() {
    address0 = server0.address();
    console.log('address0 %j', address0);
    server0.close();
  });
  
  
  // No callback to listen(), assume we can bind in 100 ms
  
  var address1;
  var connectionKey1;
  var server1 = net.createServer(function(socket) { });
  
  server1.listen(common.PORT);
  
  setTimeout(function() {
    address1 = server1.address();
    connectionKey1 = server1._connectionKey;
    console.log('address1 %j', address1);
    server1.close();
  }, 100);
  
  
  // Callback to listen()
  
  var address2;
  var server2 = net.createServer(function(socket) { });
  
  server2.listen(common.PORT + 1, function() {
    address2 = server2.address();
    console.log('address2 %j', address2);
    server2.close();
  });
  
  
  // Backlog argument
  
  var address3;
  var server3 = net.createServer(function(socket) { });
  
  server3.listen(common.PORT + 2, '0.0.0.0', 127, function() {
    address3 = server3.address();
    console.log('address3 %j', address3);
    server3.close();
  });
  
  
  // Backlog argument without host argument
  
  var address4;
  var server4 = net.createServer(function(socket) { });
  
  server4.listen(common.PORT + 3, 127, function() {
    address4 = server4.address();
    console.log('address4 %j', address4);
    server4.close();
  });
  
  
  process.on('exit', function() {
    assert.ok(address0.port > 100);
    assert.equal(common.PORT, address1.port);
  
    var expectedConnectionKey1;
  
    if (address1.family === 'IPv6')
      expectedConnectionKey1 = '6::::' + address1.port;
    else
      expectedConnectionKey1 = '4:0.0.0.0:' + address1.port;
  
    assert.equal(connectionKey1, expectedConnectionKey1);
    assert.equal(common.PORT + 1, address2.port);
    assert.equal(common.PORT + 2, address3.port);
    assert.equal(common.PORT + 3, address4.port);
  });
  