omniauth-facebook test with devise - ruby-on-rails

Question

I am starting with using omniauth with devise User model. Integration works well but a case is failing.
This is related code from omniauth callback controller:
class OmniauthCallbacksController < Devise::OmniauthCallbacksController
before_action :find_user, only: [:facebook]
def facebook
process_omniauth_response('Facebook', request.env['omniauth.auth'], #user)
end
def failure
redirect_to root_path, flash: { error: 'Authentication \
failed, please try again!' }
end
private
def find_user
#user = User.from_omniauth(request.env['omniauth.auth'])
end
def process_omniauth_response(provider, env_data, user)
if user.persisted?
sign_in_and_redirect user, event: :authentication
set_flash_message(:notice, :success,
kind: provider) if is_navigational_format?
else
session["devise.#{provider.downcase}_data"] = env_data
redirect_to new_user_registration_url
end
end
end
And the User model methods:
def self.from_omniauth(auth)
where(provider: auth.provider, uid: auth.uid).first_or_create do |user|
info = auth.info
user.email = info.email
user.remote_profile_picture_url = info.image
user.name = info.name
user.password = Devise.friendly_token[0, 20]
end
end
def self.new_with_session(params, session)
super.tap do |user|
auth_data =
session['devise.facebook_data'] || session['devise.twitter_data']
fill_with_omniauth_data(user, auth_data) if auth_data
end
end
def self.fill_with_omniauth_data(user, auth_data)
data_info = auth_data['info']
user.email = data_info['email'] if user.email.blank?
user.name = data_info['name'] if user.name.blank?
...
end
So everything works fine i.e if a new user clicks on login by Facebook, after authentication by facebook he will come to signup page with pre-filled data but in case of this below case it is going to sign in page after omniauth callback action:
context 'when facebook email doesn\'t exist in the system' do
before(:each) do
stub_env_for_omniauth
get :facebook
end
it { response.should redirect_to new_user_registration_path }
it 'should create authentication with facebook id' do
authentication = User.where(provider: 'facebook', uid: '1234').first
puts authentication.inspect
authentication.should_not be_nil
end
end
And the stub method:
def stub_env_for_omniauth
request.env['devise.mapping'] = Devise.mappings[:user]
request.env['omniauth.auth'] = OmniAuth::AuthHash.new(
provider: 'facebook', uid: '1234', info: {
email: 'ghost#nobody.com', name: 'mock user'
},
extra: { raw_info: { age: 23 } }
)
end
I got this message:
Expected response to be a redirect to http://test.host/users/sign_up but was a redirect to http://test.host/users/sign_in
From debugging I got that user object is a new , not persisted when I check it in the 'find_user' method of controller but in case of spec it is a persisted one.
I would appreciate any help.
Thanks