Added a way to disable object caching.

lib/machinist.rb

@@ -1,4 +1,5 @@
 require 'machinist/blueprint'
+require 'machinist/configuration'
 require 'machinist/exceptions'
 require 'machinist/lathe'
 require 'machinist/machinable'

lib/machinist/configuration.rb

@@ -0,0 +1,32 @@
+module Machinist
+
+  # Configure Machinist.
+  #
+  # To change Machinist configuration, do something like this in your
+  # config/environments/test.rb or somewhere similar:
+  #
+  #     Machinist.configure do |config|
+  #       config.cache_objects = false
+  #     end
+  class Configuration
+    # Set this to false to disable object caching. Defaults to true.
+    attr_accessor :cache_objects
+
+    def cache_objects? #:nodoc:
+      @cache_objects
+    end
+
+    def initialize #:nodoc:
+      self.cache_objects = true
+    end
+  end
+
+  def self.configuration
+    @configuration ||= Configuration.new
+  end
+
+  def self.configure
+    yield(configuration)
+  end
+
+end

lib/machinist/machinable.rb

@@ -51,7 +51,11 @@ def make(*args)
     # Arguments are the same as for make.
     def make!(*args)
       decode_args_to_make(*args) do |blueprint, attributes|
-        Shop.instance.buy(blueprint, attributes)
+        if Machinist.configuration.cache_objects?
+          Shop.instance.buy(blueprint, attributes)
+        else
+          blueprint.make!(attributes)
+        end
       end
     end
 

spec/active_record_spec.rb

@@ -48,6 +48,16 @@ def fake_a_test
       fake_a_test { post_b = Post.make! }
       post_a.should == post_b
     end
+
+    it "should not buy objects from the shop if caching is disabled" do
+      Machinist.configuration.cache_objects = false
+      Post.blueprint { }
+      post_a, post_b = nil, nil
+      fake_a_test { post_a = Post.make! }
+      fake_a_test { post_b = Post.make! }
+      post_a.should_not == post_b
+      Machinist.configuration.cache_objects = true 
+    end
   end
 
   context "associations support" do

spec/spec_helper.rb

@@ -5,3 +5,7 @@
 require 'test/unit'
 require 'rspec'
 require 'machinist'
+
+Machinist.configure do |config|
+  config.cache_objects = true
+end