added command_nick test

test/command_nick.js

@@ -56,6 +56,8 @@ describe("NICK no NICK given", function () {
             done("Destroyed socket without answering")
         }
 
+        console.log(server.getUserObjectFromNickName("some_nick"))
+
         server.emit("connection", mockedSock)
         mockedSock.emit('data', Buffer.from("NICK \r\n", "ascii"))
     })