Changing CouchRest::ExtendedDocument to allow chaining the inherit class callback

spec/couchrest/more/extended_doc_inherited_spec.rb

@@ -0,0 +1,40 @@
+require File.expand_path('../../../spec_helper', __FILE__)
+
+begin
+  require 'rubygems' unless ENV['SKIP_RUBYGEMS']  
+  require 'activesupport'
+  ActiveSupport::JSON.backend = :JSONGem
+
+  class PlainParent
+    class_inheritable_accessor :foo
+    self.foo = :bar
+  end
+
+  class PlainChild < PlainParent
+  end
+
+  class ExtendedParent < CouchRest::ExtendedDocument
+    class_inheritable_accessor :foo
+    self.foo = :bar
+  end
+
+  class ExtendedChild < ExtendedParent
+  end
+
+  describe "Using chained inheritance without CouchRest::ExtendedDocument" do
+    it "should preserve inheritable attributes" do
+      PlainParent.foo.should == :bar
+      PlainChild.foo.should == :bar
+    end
+  end
+
+  describe "Using chained inheritance with CouchRest::ExtendedDocument" do
+    it "should preserve inheritable attributes" do
+      ExtendedParent.foo.should == :bar
+      ExtendedChild.foo.should == :bar
+    end
+  end
+
+rescue LoadError
+  puts "This spec requires 'active_support' to be loaded"
+end