Socket.io and Socket.io-client in Expresso Serial Tests will be hanged.

gistfile1.js

  test: function( done ) {

       var port = 8080,
        io = require("socket.io").listen(port);

      io.set('polling duration', .2);

      var client = require("socket.io-client").connect( "http://localhost", { port: port });

      client.on('connect', function() {
          client.disconnect();

      });

      client.on('disconnect', function() {
              
          console.log(' client disconnect');

          client.socket.transport.websocket.finishClose();
          io.server.close();
          done();
                
      });

     
  },

i answered this question here: http://stackoverflow.com/questions/5965733/how-does-one-properly-shutdown-socket-io-websocket-client

Also, it could be that you are running your tests with the proper arguments:

1. run serial tests ( normally, the convention is to use 'done' instead of 'beforeExit' with is the term for no-serial tests ),

2. -t TIMEOUT, with a timeout big enough in order the tests won't fail because timing-out.

--> expresso mytest -s -t 10000