gistfile1.rb

    describe "for raw data"
      describe "when unserialized data was already provided" do
        before do
          @object.data = { :some => :data }
        end

        it "should reset unserialized forms when stored" do
          @object.raw_data = value = '{ "raw": "json" }'
          
          @object.raw_data.should == value
          @object.data.should == { "raw" => "json" }
        end

        it "should lazily serialize when read" do
          @object.raw_data.should == '{"some":"data"}'
        end
      end

      it "should not unnecessarily marshal/demarshal" do
        @object.should_not_receive(:serialize)
        @object.should_not_receive(:deserialize)
        @object.raw_data = value = "{not even valid json!}}"
        @object.raw_data.should == value
      end
    end
    
    describe "for unserialized data" do
      describe "when raw data was already provided" do
        before do
          @object.raw_data = '{"some":"data"}'
        end

        it "should reset previously stored raw data" do
          @object.data = value = { "new" => "data" }
          @object.raw_data.should == '{"new":"data"}'
          @object.data.should == value
        end

        it "should lazily deserialize when read" do
          @object.data.should == { "some" => "data" }
        end
      end

      it "should not unnecessarily marshal/demarshal" do
        @object.should_not_receive(:serialize)
        @object.should_not_receive(:deserialize)
        @object.data = value = { "some" => "data" }
        @object.data.should == value
      end
    end
  end