[I''m reposting this. The subject wasnt complete and misleading in my initial post (''testing'')] I''m looking for a good way to make all of Rails'' inbuilt helpers available to my custom Helper while I''m testing it. The Helper I''m testing is EditorHelper. EditorHelper itself relies on some of Rails'' inbuilt Helpers, such as JavaScriptHelper and UrlHelper. These are automagically available when called on within an ERB template, but not when called by my EditorHelper inside a unit Test. I can manually include each of the required Helpers in my editor_helper_test file: ... require ''action_view/helpers/url_helper'' module EditorHelper include ActionView::Helpers::UrlHelper end ... But I''d much rather make use of self.load_helpers(helper_dir)#:nodoc: in ActionView::Base to load all the helpers in one swoop. I couldnt figure out how to use that method (or even copy/past+modify it) to include all of Rails'' Helpers within my EditorHelper. Who knows how?