switching mongoid over to new adapter

spec/cancan/model_adapters/mongoid_adapter_spec.rb

@@ -37,7 +37,7 @@ if ENV["MODEL_ADAPTER"] == "mongoid"
     config.master = Mongo::Connection.new('127.0.0.1', 27017).db("cancan_mongoid_spec")
   end
 
-  describe CanCan::MongoidAdditions do
+  describe CanCan::ModelAdapters::MongoidAdapter do
     context "Mongoid not defined" do
       before(:all) do
         @mongoid_class = Object.send(:remove_const, :Mongoid)
@@ -46,6 +46,7 @@ if ENV["MODEL_ADAPTER"] == "mongoid"
       after(:all) do
         Object.const_set(:Mongoid, @mongoid_class)
       end
+
       it "should not raise an error for ActiveRecord models" do
         @model_class = Class.new(Project)
         stub(@model_class).scoped { :scoped_stub }
@@ -72,6 +73,12 @@ if ENV["MODEL_ADAPTER"] == "mongoid"
         end.each(&:drop)
       end
 
+      it "should be for only Mongoid classes" do
+        CanCan::ModelAdapters::MongoidAdapter.should_not be_for_class(Object)
+        CanCan::ModelAdapters::MongoidAdapter.should be_for_class(@model_class)
+        CanCan::ModelAdapters::AbstractAdapter.adapter_class(@model_class).should == CanCan::ModelAdapters::MongoidAdapter
+      end
+
       it "should compare properties on mongoid documents with the conditions hash" do
         model = @model_class.new
         @ability.can :read, @model_class, :id => model.id