Refactor blockchain backing service

test/mocks/FakeBlockchain.js

@@ -7,7 +7,7 @@ function FakeBlockchain(opts) {
 }
 
 FakeBlockchain.prototype.getTransactions = function(addresses, cb) {
-  return cb([]);
+  return cb(null, []);
 };
 
 
@@ -15,6 +15,9 @@ FakeBlockchain.prototype.fixUnspent = function(u) {
   this.u = u;
 };
 
+FakeBlockchain.prototype.destroy = function() {
+};
+
 FakeBlockchain.prototype.getUnspent = function(addresses, cb) {
   return cb(null, this.u || [{
     'address': 'mji7zocy8QzYywQakwWf99w9bCT6orY1C1',
@@ -41,9 +44,9 @@ FakeBlockchain.prototype.getUnspent2 = function(addresses, cb) {
   }]);
 };
 
-FakeBlockchain.prototype.sendRawTransaction = function(rawtx, cb) {
+FakeBlockchain.prototype.broadcast = function(rawtx, cb) {
   var txid = '0be0fb4579911be829e3077202e1ab47fcc12cf3ab8f8487ccceae768e1f95fa';
-  return cb(txid);
+  return cb(null, txid);
 };
 
 FakeBlockchain.prototype.checkSentTx = function (tx, cb) {

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;