Rails Recipe 44 -- Write Tests for Your Helpers [Corrected]

rubyonrails-talk
1

I'm having trouble getting this to work.

The recipe is simple:

def setup   @controller = SomeController.new   request = ActionController::TestRequest.new   @controller.instance_eval { @params = {}, @request = request }   @controller.send(:initialize_current_url) end

But with Rails 1.2.3 I'm getting this error:

1) Error:   test_x(ApplicationHelperTest):

TypeError: can't clone NilClass     C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/ action_controller/base.rb:1082:in `clone'     C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/ action_controller/base.rb:1082:in `initialize_current_url'     application_helper_test.rb:20:in `send'     application_helper_test.rb:20:in `setup_without_fixtures'     C:/InstantRails/ruby/lib/ruby/gems/1.8/gems/activerecord-1.15.3/ lib/active_record/fixtures.rb:576:in `setup'

Any ideas?

Thanks

2

I think that's changed to since the original Recipes book was published, and it's now:

@controller.instance_variable_set(:@url, (ActionController::UrlRewriter.new @request, {}))

A setup that works for me is:

def setup    super

   @request = ActionController::TestRequest.new    @controller = StubController.new    @controller.request = @request

   @controller.instance_variable_set(:@url, (ActionController::UrlRewriter.new @request, {}))

ActionView::Helpers::AssetTagHelper::reset_javascript_include_default end

Cheers,

Mike