Devise after_sign_in_path_for ... sending to .... root_path - query

I need help with a routes issue with devise authentication gem to redirect to a custom page after successful login so as to create a new record by entering a test person name and age ( test data )

I am using Rails 3 with devise version 1.4.9

My routes are as below

    new_user_session GET    /users/sign_in(.:format)       {:action=>"new", :controller=>"devise/sessions"}
        user_session POST   /users/sign_in(.:format)       {:action=>"create", :controller=>"devise/sessions"}
destroy_user_session DELETE /users/sign_out(.:format)      {:action=>"destroy", :controller=>"devise/sessions"}
       user_password POST   /users/password(.:format)      {:action=>"create", :controller=>"devise/passwords"}
   new_user_password GET    /users/password/new(.:format)  {:action=>"new", :controller=>"devise/passwords"}
  edit_user_password GET    /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
                     PUT    /users/password(.:format)      {:action=>"update", :controller=>"devise/passwords"}
   cancel_user_registration GET    /users/cancel(.:format)        {:action=>"cancel", :controller=>"devise/registrations"}
   user_registration POST   /users(.:format)               {:action=>"create", :controller=>"devise/registrations"}
   new_user_registration GET    /users/sign_up(.:format)       {:action=>"new", :controller=>"devise/registrations"}
   edit_user_registration GET    /users/edit(.:format)          {:action=>"edit", :controller=>"devise/registrations"}
                     PUT    /users(.:format)               {:action=>"update", :controller=>"devise/registrations"}
                     DELETE /users(.:format)               {:action=>"destroy", :controller=>"devise/registrations"}
             testers GET    /testers(.:format)             {:action=>"index", :controller=>"testers"}
                     POST   /te