refactor code

lib/server.js

@@ -659,6 +659,31 @@ WalletService.prototype._totalizeUtxos = function(utxos) {
 };
 
 
+WalletService.prototype._computeKbToSendMax = function(utxos, amount, cb) {
+  var self = this;
+
+  var unlockedUtxos = _.filter(utxos, {
+    locked: false
+  });
+  if (_.isEmpty(unlockedUtxos)) return cb(null, 0);
+
+  self.getWallet({}, function(err, wallet) {
+    if (err) return cb(err);
+
+    var t = WalletUtils.newBitcoreTransaction();
+    try {
+      _.each(unlockedUtxos, function(i) {
+        t.from(i, i.publicKeys, wallet.m);
+      });
+      t.to(utxos[0].address, amount);
+      var sizeInKb = Math.ceil(t._estimateSize() / 1000);
+      return cb(null, sizeInKb);
+    } catch (ex) {
+      return cb(ex);
+    }
+  });
+};
+
 /**
  * Creates a new transaction proposal.
  * @param {Object} opts
@@ -688,31 +713,11 @@ WalletService.prototype.getBalance = function(opts, cb) {
 
     balance.byAddress = _.values(byAddress);
 
-    // Compute KB of a tx to send all non-locked funds
-    balance.totalKbToSendMax = 0;
-    self.getWallet({}, function(err, wallet) {
-      if (err) return cb(err);
-
-      var unlockedUtxos = _.filter(utxos, {
-        locked: false
-      });
-      if (unlockedUtxos.length > 0) {
-        var t = WalletUtils.newBitcoreTransaction();
-
-        try {
-          _.each(unlockedUtxos, function(i) {
-            t.from(i, i.publicKeys, wallet.m);
-          });
-
-          var address = utxos[0].address;
-          t.to(address, balance.totalAmount - balance.lockedAmount);
-
-          balance.totalKbToSendMax = Math.ceil(t._estimateSize() / 1000);
-        } catch (ex) {
-          log.error('Could not compute fees needed to transfer max amount', ex);
-        }
+    self._computeKbToSendMax(utxos, balance.totalAmount - balance.lockedAmount, function(err, sizeInKb) {
+      if (err) {
+        log.error('Could not compute fees needed to transfer max amount', err);
       }
-
+      balance.totalKbToSendMax = sizeInKb || 0;
       return cb(null, balance);
     });
   });

test/integration/server.js

@@ -216,7 +216,7 @@ helpers.createAddresses = function(server, wallet, main, change, cb) {
 
 var storage, blockchainExplorer;
 
-var useMongo = true;
+var useMongo = false;
 
 function initStorage(cb) {
   function getDb(cb) {