Update render test helper to use ActionDispatch::Testrequest and path= i.o. fullpath=
Move ApplicationHelperSpec to the Radiant namespace
Update deprecated stub! to stub in PageResponseCacheDirectorSpec
Fix header setting in PageSpecTestPage; ActionController::TestRequest > ActionDispatch::TestRequest
Define ReverseFilter in PageSpec so we can test rendering with it
Skip update published_at field in not-English for now; needs language pack to succeed
Account for new descendants implementation since Rails 3 (called multiple times)
Remove all references to dataset and create_page in PageSpec
Remove erroneous line that was supposed to make @page virtual?
Make test pages actually have a Published status

Setting published_at to Time.now does not actually publish the pages.
Setting status to Status[:published] dóes set the published_at date, which is probably why this fault was in here.
Use ActionDispatch::TestRequest i.o. ActionController::TestRequest