RSpec tests with devise: could not find valid mapping - ruby-on-rails-3

Question

I'm trying to run controller specs with devise 1.3.4. (and factory girl)
I followed the instructions in the git wiki for the project. I am able to log in as a user using the login_user method created in the macro, but login_admin fails with the following error:
...
sign_in Factory.create(:admin)
Could not find a valid mapping for #<User id: 2023, email: "admin1#gmail.com", .... >
Factory:
Factory.define :user do |f|
f.sequence(:username) {|n| "user#{n}"}
f.sequence(:email) {|n| "user#{n}#gmail.com"}
f.email_confirmation {|fac| fac.email }
f.password "a12345Den123"
f.password_confirmation "a12345Den123"
# f.admin 0
end
Factory.define :admin, :class => User do |f|
f.sequence(:username) {|n| "admin#{n}"}
f.sequence(:email) {|n| "admin#{n}#gmail.com"}
f.email_confirmation {|fac| fac.email }
f.password "a12345Den123"
f.password_confirmation "a12345Den123"
f.admin 1
end
Controller macros module:
module ControllerMacros
def login_admin
before(:each) do
#request.env["devise.mapping"] = Devise.mappings[:user] #it should map to user because admin is not a model of its own. It produces the same result either way.
#admin = Factory.create(:admin)
sign_in #admin
end
end
def login_user
before(:each) do
#request.env["devise.mapping"] = Devise.mappings[:user]
#user = Factory.create(:user)
sign_in #user
end
end
end
routes
devise_for :users
devise_for :admins, :class_name => 'User'
One solution is to set cache_classes = false, however that isn't ideal as I use spork and don't want to have to restart it after changing a model.
Any help?

Answer 1

I have something like this in my routes:
devise_for :accounts, :controllers => {:confirmations => "confirmations"} do
put "confirm_account", :to => "confirmations#confirm_account"
get "login" => "devise/sessions#new", :as => :login
delete "logout" => "devise/sessions#destroy", :as => :logout
get "register" => "devise/registrations#new", :as => :register
end
so in my spec/support/controller_macros.rb I needed to change from:
def login_account
before(:each) do
#request.env["devise.mapping"] = Devise.mappings[:account]
#account = Factory.create(:account)
sign_in(#account)
end
end
to
def login_account
before(:each) do
#request.env["devise.mapping"] = Devise.mappings[:account]
#account = Factory.create(:account)
sign_in(:account, #account)
end
end
note the sign_in(scope, resource)
I hope this helps.

Answer 2

This is from the devise readme:
Devise also ships with default routes.
If you need to customize them, you
should probably be able to do it
through the devise_for method. It
accepts several options like
:class_name, :path_prefix and so on,
including the possibility to change
path names for I18n
So I would check your routes file and make sure this is in there:
devise_for :admins, :class_name => 'User'

Answer 3

You may want to check your code for multiple devise_for :admins declarations in different places. This has been the cause of such an exception in my case, as it surely confuses Devise.