Two options for named routing with dynamic paths.

twitter_oauth.rb

##
# Option #1: Hacking the routes file.
##

#config/routes.rb
  match ‘auth/:provider/callback’ => ‘authentications#create’
  match ‘auth/twitter/callback’ => ‘authentications#create’, :as => :twitter_callback

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# Option #2: Using cucumber web steps
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#features/step_definitions/twitter_steps.rb
  Given /^I am signed in$/ do
    visit twitter_auth_path
    # This is important!!!!! You must manually visit this page.
    Given “I am on the twitter callback page”
  end
#features/support/paths.rb
  #.. start of file
  case page_name
    when /the twitter callback page/
      ‘/auth/twitter/callback’
    #…more code