Fix set funded amount with unfunded native currency

src/js/ripple/orderbook.js

@@ -384,24 +384,34 @@ OrderBook.prototype.setFundedAmount = function(offer, fundedAmount) {
 
   offer.taker_gets_funded = fundedAmount;
 
-  var rate = Amount.from_json(offer.TakerPays)
-  .divide(Amount.from_json(offer.TakerGets));
+  var takerPaysValue = typeof offer.TakerPays === 'object'
+  ? offer.TakerPays.value
+  : offer.TakerPays;
 
-  var takerPays = Amount.from_json(offer.TakerPays);
+  var takerGetsValue = typeof offer.TakerGets === 'object'
+  ? offer.TakerGets.value
+  : offer.TakerGets;
 
-  takerPays.set_currency('XXX');
-  takerPays.set_issuer('rrrrrrrrrrrrrrrrrrrrBZbvji');
+  var takerPays = Amount.from_json(
+    takerPaysValue + '/000/rrrrrrrrrrrrrrrrrrrrBZbvji'
+  );
+
+  var takerGets = Amount.from_json(
+    takerGetsValue + '/000/rrrrrrrrrrrrrrrrrrrrBZbvji'
+  );
 
   var fundedPays = Amount.from_json(
-    fundedAmount + '/XXX/rrrrrrrrrrrrrrrrrrrrBZbvji'
+    fundedAmount + '/000/rrrrrrrrrrrrrrrrrrrrBZbvji'
   );
 
+  var rate = takerPays.divide(takerGets);
+
   fundedPays = fundedPays.multiply(rate);
 
   if (fundedPays.compareTo(takerPays) < 0) {
-    offer.taker_pays_funded = fundedPays.to_text();
+    offer.taker_pays_funded = fundedPays.to_json().value;
   } else {
-    offer.taker_pays_funded = Amount.from_json(offer.TakerPays).to_text();
+    offer.taker_pays_funded = takerPays.to_json().value;
   }
 
   return offer;

test/orderbook-test.js

@@ -369,12 +369,12 @@ describe('OrderBook', function() {
     });
 
     var offer = {
+      TakerGets: '100',
       TakerPays: {
         value: '123456',
         currency: 'BTC',
         issuer: 'rrrrrrrrrrrrrrrrrrrrBZbvji'
-      },
-      TakerGets: '100'
+      }
     };
 
     book.setFundedAmount(offer, '99');
@@ -429,22 +429,22 @@ describe('OrderBook', function() {
     });
 
     var offer = {
-      TakerGets: '100',
-      TakerPays: {
+      TakerGets: {
         value: '100.1234',
         currency: 'USD',
         issuer: 'rrrrrrrrrrrrrrrrrrrrBZbvji'
-      }
+      },
+      TakerPays: '123'
     };
 
-    book.setFundedAmount(offer, '99');
+    book.setFundedAmount(offer, '100');
 
     var expected = {
       TakerGets: offer.TakerGets,
       TakerPays: offer.TakerPays,
       is_fully_funded: false,
-      taker_gets_funded: '99',
-      taker_pays_funded: '99.122166'
+      taker_gets_funded: '100',
+      taker_pays_funded: '122.8484050681459'
     };
 
     assert.deepEqual(offer, expected);