search for: somepageoutsidemyrailsapp

In an integration test that I am writing I want to do something like def test_my_page get "/rails/someaction" assert_response :redirect follow_redirect! assert_url => ''http://www.somepageoutsidemyrailsapp'' end Is there any way to do something like ''assert_url'' and see if I was redirected to a page outside of the rails application? If the page was part of my rails app I could use assert_redirected_to but since I want to check against a full URL I don''t know...