Simple test not working

[fdellabetta]

This test fails with Uncaught TypeError: Cannot call method 'push' of undefined
The test disconnects a socket that is trying to connect to a namespace other than the default

  it('should not crash while disconnecting socket', function(done){
    var srv = http();
    var sio = io(srv);
    srv.listen(function(){
      var socket = client(srv,'/ns');
      sio.on('connection', function(socket){
        socket.disconnect();
        done();
      });
    });
  });