object_factory.rb in rahoulb-object-factory-0.1.2

- old
+ new

@@ -2,11 +2,11 @@
 require 'rujitsu'
 
 class Object
   # return an instance of an Object::Factory
   def self.factory
-    @@object_factory ||= Factory.new
+    THE_OBJECT_FACTORY_INSTANCE
   end
   
   # Factory allows test suites to build new instances of objects, specifying some simple constraints on certain fields
   # If a new instance is created via the factory then that instance can have specialist values automatically applied to given fields, meaning that it should be possible for test cases to build valid objects without having to specify a full valid field-set
   # The factory should not be created directly, but instead accessed through the Object#factory method.  
@@ -84,10 +84,20 @@
     end
     
     #ÊError raised when create_and_save_a cannot save the object
     class CannotSaveError < RuntimeError; end
     
+    # print the rules for a given class
+    def print_configuration_for klass
+      fields_and_generators = @generators[symbol_for(klass)]
+      unless fields_and_generators.nil? 
+        fields_and_generators.each do | field_name, generator | 
+          puts "#{field_name} uses a lambda"
+        end
+      end
+    end
+    
     private
       
     def symbol_for object
       klass = object.is_a?(Class) ? object : object.class
       return klass.name.to_sym
@@ -147,10 +157,11 @@
         value = proc.call
         instance.send("#{field_name.to_sym}=".to_sym, value) unless parameters.has_key?(field_name.to_sym)
       end
     end
   end
+  
 end
 
 # Short-cut method for Object::Factory#create_a
 # Also aliased as an, for class names that start with a vowel.  
 #   instance = a Thingy
@@ -170,5 +181,7 @@
 def when_creating_a klass, options = {}
   Object.factory.when_creating_a klass, options
 end
 
 alias when_creating_an when_creating_a
+
+THE_OBJECT_FACTORY_INSTANCE = Object::Factory.new