make listening optional and fixed peer test

lib/peer.js

@@ -31,7 +31,7 @@ var util = require('util');
  * @constructor
  */
 function Peer(options) {
-  /* jshint maxstatements: 20 */
+  /* jshint maxstatements: 25 */
   /* jshint maxcomplexity: 8 */
 
   if (!(this instanceof Peer)) {
@@ -51,6 +51,7 @@ function Peer(options) {
   }
 
   this.network = Networks.get(options.network) || Networks.defaultNetwork;
+
   if (!this.port) {
     this.port = this.network.port;
   }

lib/pool.js

@@ -127,8 +127,6 @@ Pool.prototype.connect = function connect() {
   } else {
     self._fillConnections();
   }
-
-  this.listen();
   return this;
 };
 
@@ -340,7 +338,7 @@ Pool.prototype.sendMessage = function(message) {
 Pool.prototype.listen = function() {
   var self = this;
 
-    // Create server
+  // Create server
   this.server = net.createServer(function(socket) {
     var addr = {
       ip: {}

test/peer.js

@@ -139,6 +139,7 @@ describe('Peer', function() {
     var peer = new Peer({host: 'localhost'});
     var socket = new EventEmitter();
     socket.connect = sinon.spy();
+    socket.destroy = sinon.spy();
     peer._getSocket = function() {
       return socket;
     };