return array instead of object

lib/server.js

@@ -824,7 +824,7 @@ WalletService.prototype.getFeeLevels = function(opts, cb) {
 
   var samplePoints = _.uniq(_.pluck(levels, 'nbBlocks'));
   self._sampleFeeLevels(network, samplePoints, function(err, feeSamples) {
-    var values = _.zipObject(_.map(levels, function(level) {
+    var values = _.map(levels, function(level) {
       var feePerKB;
       if (err) {
         feePerKB = level.defaultValue;
@@ -832,8 +832,11 @@ WalletService.prototype.getFeeLevels = function(opts, cb) {
         var sample = feeSamples[level.nbBlocks];
         feePerKB = (sample <= 0) ? level.defaultValue : sample * level.modifier;
       }
-      return [level.name, feePerKB]
-    }));
+      return {
+        level: level.name,
+        feePerKB: feePerKB,
+      };
+    });
 
     return cb(null, values);
   });

test/integration/server.js

@@ -1469,6 +1469,9 @@ describe('Wallet service', function() {
       });
       server.getFeeLevels({}, function(err, fees) {
         should.not.exist(err);
+        fees = _.zipObject(_.map(fees, function(item) {
+          return [item.level, item.feePerKB];
+        }));
         fees.emergency.should.equal(60000);
         fees.priority.should.equal(40000);
         fees.normal.should.equal(20000);
@@ -1480,6 +1483,9 @@ describe('Wallet service', function() {
       blockchainExplorer.estimateFee = sinon.stub().yields('dummy error');
       server.getFeeLevels({}, function(err, fees) {
         should.not.exist(err);
+        fees = _.zipObject(_.map(fees, function(item) {
+          return [item.level, item.feePerKB];
+        }));
         fees.emergency.should.equal(50000);
         fees.priority.should.equal(20000);
         fees.normal.should.equal(10000);
@@ -1495,6 +1501,9 @@ describe('Wallet service', function() {
       });
       server.getFeeLevels({}, function(err, fees) {
         should.not.exist(err);
+        fees = _.zipObject(_.map(fees, function(item) {
+          return [item.level, item.feePerKB];
+        }));
         fees.emergency.should.equal(50000);
         fees.priority.should.equal(20000);
         fees.normal.should.equal(18000);