lib/physical/cuboid.rb in physical-0.4.4 vs lib/physical/cuboid.rb in physical-0.4.5

@@ -20,20 +20,21 @@
     end
 
     def density
       return Measured::Density(Float::INFINITY, :g_ml) if volume.value.zero?
       return Measured::Density(0.0, :g_ml) if volume.value.infinite?
+
       Measured::Density(weight.convert_to(:g).value / volume.convert_to(:ml).value, :g_ml)
     end
 
     def ==(other)
       other.is_a?(self.class) &&
         id == other&.id
     end
 
     private
 
-    NORMALIZED_METHOD_REGEX = /(\w+)\??$/
+    NORMALIZED_METHOD_REGEX = /(\w+)\??$/.freeze
 
     def method_missing(method)
       symbolized_properties = properties.symbolize_keys
       method_name = normalize_method_name(method)
       if symbolized_properties.key?(method_name)