Devise + Omniauth - testing - getting no route matches "/oauth/authorize"

Question

I'm trying to write tests for authentication with Twitter and Facebook. I am using Devise and Omniauth. When I try it out it works correctly, but I can't get the tests to pass for it.

I'm following instructions, but it isn't in depth enough for me, plus I'm doing things a little differently (already have some code base). I have a custom controllers for omniauth_callbacks and registrations.

My problem is that when I run the tests it says:

(::) failed steps (::)

No route matches "/oauth/authorize" (ActionController::RoutingError)
<internal:prelude>:10:in `synchronize'
(eval):2:in `click_link'
./features/step_definitions/web_steps.rb:57:in `/^(?:|I )follow "([^"]*)"$/'
features/link_twitter.feature:19:in `And I link twitter'

Failing Scenarios:
cucumber features/link_twitter.feature:16 # Scenario: User links twitter

Where is this /oauth/authorize route coming from and how do I handle that?

It does not look like it is getting to my OmniauthCallbacksController. It follows the link and then dies. I think it has to do with Omniauth's call back method during test mode, but I'm not sure how to change / manage that.

Update: Here are my routes for Devise.

devise_for :users, :controllers => { 
    :omniauth_callbacks => "users/omniauth_callbacks", 
    :registrations => 'registrations', 
    :passwords => 'passwords', 
    :sessions => 'sessions', 
    :confirmations => 'confirmations' 
} do
  match 'confirmations/unconfirmed' => 'confirmations#unconfirmed', :as => :unconfirmed
  match 'confirmations/send_advisor_confirmation/:id' => 'confirmations#unregistered_advisor_confirmation', :as => :send_advisor_confirmation
  get '/users/auth/:provider' => 'users/omniauth_callbacks#passthru'
end

Answer 1

I forgot to put the following into env.rb

# features/support/env.rb
OmniAuth.config.test_mode = true

For more information read about the testing here.