lib/stripe_fee/calculator.rb in stripe_fee-0.1.0 vs lib/stripe_fee/calculator.rb in stripe_fee-0.1.1

@@ -9,10 +9,10 @@
       @amount = amount
       @currency = currency
     end
 
     def validate!
-      raise ::AmountError unless @amount.to_f
+      raise ::AmountError unless @amount.to_f && @amount.to_f > 0
       raise ::CurrencyError unless @currency == 'usd'
     end
 
     def amount_in_cents
       @amount.to_f * 100
\ No newline at end of file