In a recent twitch stream, Gary Bernhardt showed a bit of behind-the-scenes in how he prepares his development environment for recording a screencast. One of the tools he showed in passing was gem_home by Hal Brodigan. gem_home is a simple script that manipulates Ruby’s GEM_HOME and GEM_PATH environmental variables in order to keep separate ruby gem locations. By using gem_home, there is no longer a requirement to prefix all ruby commands with bundle exec.
Today I needed to prove that my Rails controller method deleted a cookie. After Googling for the answer (without success), I came up with the following. Within your controller: cookies.delete('cookie-to-delete') In your controller spec you can check that the cookie was deleted with: expect(response.cookies).to include('cookie-to-delete' => nil) Rails sets the cookies to be deleted to a value of nil. By checking for the presence of both the cookie name with a value of nil, you can ensure your controller code deleted the cookie.