Array mpc as service demo transformed to be a cypress test

[Snafkin547]

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[Snafkin547]

I found out the issue around socket connection due to the socket.io version update.

Upon socket connection, JIFF register a callback, handlers.connect in client/socket/event.js #L11

this.socket.on('connect', jiffClient.handlers.connected);

After required number of all sockets are connected, it gets triggered by jiff-client-restful.js (This example uses restful extension instead of websockets).

    jiff.socket.connect = function () {
      var connectListeners = jiff.socket.listeners('connect');
      for (var i = 1; i < connectListeners.length; i++) {
        connectListeners[i]();
      }
    };

This implementation worked fine in socket v2.5.0, because this.socket.on('connect', jiffClient.handlers.connected); registered the callbacks twice for a single connection for some reason.

However, from v3 onward (we are currently using v4), it is no longer the case and this weird behavior has been corrected. The resulting listener array only contains 1 callback from itself.

Therefore, I changed the starting index from i = 1 to i = 0, so that the only 'on connect' listener call back gets executed as intended:

      for (var i = 0; i < connectListeners.length; i++) {
        connectListeners[i]();
      }