var common = require("../common");
var assert = common.assert
var http = require('http'),
    CRLF = '\r\n';

var server = http.createServer();
server.on('upgrade', function(req, socket, head) {  
  socket.write('HTTP/1.1 101 Ok' + CRLF +
               'Connection: Upgrade' + CRLF +
               'Upgrade: Test' + CRLF + CRLF + 'head');
  socket.on('end', function () {
    socket.end();               
  });
});
server.listen(8000);

var client = http.createClient(8000);

function upgradeRequest(fn) {
  var request = client.request('GET', '/', {
    'Connection': 'Upgrade',
    'Upgrade': 'Test'
  });
  
  var wasUpgrade = false;
  
  function onUpgrade(res, socket, head) {
    wasUpgrade = true;
    
    client.removeListener('upgrade', onUpgrade);
    socket.end();    
  }
  client.on('upgrade', onUpgrade);
  
  function onEnd() {
    client.removeListener('end', onEnd);
    if (!wasUpgrade) {
      throw new Error('hasn\'t received upgrade event');
    } else {      
      fn && process.nextTick(fn);
    }
  }
  client.on('end', onEnd);
  
  request.write('head');

}

successCount = 0;
upgradeRequest(function() {
  successCount++;  
  upgradeRequest(function() {
    successCount++;  
    // Test pass
    console.log('Pass!');
    client.end();
    client.destroy();
    server.close();
  });
});

process.on('exit', function () {
  assert.equal(2, successCount);
});