spec.rb

  describe "handling GET /groups/not_found.xml 404" do

    def do_get
      request.env["HTTP_ACCEPT"] = "application/xml"
      get :show, :id => "not_found"
    end

    it "should 404 if given group that doesn't exist" do
      Group.stub!(:find_by_permalink!).and_return(nil)
      do_get
      response.code.should == "404"
    end

  end