gistfile1.txt

    context "failure due to record invalid" do
      before(:each) do
        e = mock("errors", :null_object => true)
        e.stub!(:full_messages).and_return([])
        @obj.stub!(:errors).and_return(e)

        @obj.stub!('update_attributes!').and_raise(ActiveRecord::RecordInvalid.new(@obj))
        put :update, { :id => @obj.id, at_name => @invalid_update }
      end

      it "should flash an error" do
        flash[:error].should_not be_nil
      end

      it "should render the edit view with status 400" do
        response.should render_template('edit')
        response.code.should == '400'
      end
    end