How to test a plugin with an around_filter?

rubyonrails-talk
1

Hello,

Does anybody know how to test a plugin module that looks like the one below? It's designed to be included by a controller, typically the application controller.

My specific questions are:

- Can I get at my do_before and do_after methods from a unit test to probe them individually? - How can I set up a fake request into which I can stuff various values for the HTTP_REFERER header? - How can I then get an appropriate fake reponse?

Also, is using a class variable the correct way to hold my_data?

module MyModule

   @@my_data =    @@my_data << %w( foo bar baz )

   def self.included(controller)      controller.around_filter :my_method    end

   protected

   def my_method      do_before      yield      do_after    end

   private

   def do_before      unless request.env['HTTP_REFERER'].blank?        # do stuff, using my @@data      end    end

   def do_after      # do stuff with response.body    end

end

I have tried mangling a functional test and also looked at various plugins from the usual suspects[1-3] but the penny still hasn't dropped.

[1] http://svn.techno-weenie.net/projects/plugins/ [2] http://dev.rubyonrails.org/svn/rails/plugins/ [3] http://topfunky.net/svn/plugins/

Thanks and regards, Andy Stewart