lib/danconia/exchanges/exchange.rb in danconia-0.2.6 vs lib/danconia/exchanges/exchange.rb in danconia-0.2.7

@@ -6,11 +6,13 @@
       def initialize store: Stores::InMemory.new
         @store = store
       end
 
       def rate from, to
-        if from == 'USD' and direct_rate = @store.direct_rate(from, to)
+        if from == to
+          1.0
+        elsif from == 'USD' and direct_rate = @store.direct_rate(from, to)
           direct_rate
         elsif to == 'USD' and inverse_rate = @store.direct_rate(to, from)
           (1.0 / inverse_rate).round 6
         elsif from != 'USD' and to != 'USD' and from_in_usd = rate(from, 'USD') and to_per_usd = rate('USD', to)
           (from_in_usd * to_per_usd).round 6
@@ -26,6 +28,6 @@
       def update_rates!
         @store.save_rates fetch_rates
       end
     end
   end
-end
\ No newline at end of file
+end