Refactor blockchain backing service

test/mocks/FakeBlockchainSocket.js

@@ -0,0 +1,27 @@
+'use strict';
+
+var util = require('util');
+var EventEmitter = require('events').EventEmitter;
+
+var FakeSocket = function (url, opts) {
+  var self = this;
+
+  self.connected = false;
+  setTimeout(function() {
+    self.connected = true;
+    self.emit('connect');
+  }, 0);
+}
+
+util.inherits(FakeSocket, EventEmitter);
+
+FakeSocket.prototype.removeEventListener = function() {
+  return;
+}
+
+FakeSocket.prototype.destroy = function() {
+  this.connected = false;
+  this.removeAllListeners();
+};
+
+module.exports = FakeSocket;