actually using volotile attributes and outputting sof in test. very readable

lib/sof/volotile.rb

@@ -1,7 +1,7 @@
 module Sof
   class Volotile
     @@mapping = {
-      Virtual::MethodDefinition =>  []
+      Virtual::MethodDefinition =>  [:current]
     }
     def self.attributes clazz
       @@mapping[clazz] || []

lib/sof/writer.rb

@@ -38,7 +38,7 @@ module Sof
         hash
       end
       immediate , extended = atts.partition {|a,val| val.is_a?(SimpleNode) }
-      head += immediate.collect {|a,val| "#{a}: #{val.data}"}.join(", ") + ")"
+      head += immediate.collect {|a,val| "#{a.to_sof()} => #{val.data}"}.join(", ") + ")"
       node = ObjectNode.new(head , ref)
       extended.each do |a , val|
         node.add( to_sof_node(a,level + 1) , val )