sidekiq with green tests

spec/observers/user_observer_spec.rb

@@ -10,24 +10,14 @@ describe UserObserver do
   end
 
   context 'when a new user is created' do
-    let(:user) { double(:user, id: 42,
-                        password: 'P@ssword!',
-                        name: 'John',
-                        email: 'u@mail.local',
-                        username: 'root',
-                        create_namespace: true) }
-    let(:notification) { double :notification }
-
     it 'sends an email' do
-      notification.should_receive(:deliver)
-      Notify.should_receive(:new_user_email).with(user.id, user.password).and_return(notification)
-
-      subject.after_create(user)
+      Notify.should_receive(:new_user_email)
+      create(:user)
     end
 
     it 'trigger logger' do
       Gitlab::AppLogger.should_receive(:info)
-      subject.after_create(user)
+      create(:user)
     end
   end
 end