lib/punky_brewster/beer.rb in punky_brewster-1.3.0 vs lib/punky_brewster/beer.rb in punky_brewster-1.3.1

@@ -1,7 +1,12 @@
 module PunkyBrewster
   class Beer < Struct.new(:name, :price, :abv, :image_url)
     def abv_per_dollar
       (abv.to_f / price).round(2)
     end
+
+    # Returns true if all expected values have been set.
+    def valid?
+      values.compact.length == members.length
+    end
   end
 end