mostrar notificaciones a los usuarios cuando alguien comenta en su

debate o responde a su comentario

spec/controllers/notifications_controller_spec.rb

@@ -0,0 +1,16 @@
+require 'rails_helper'
+
+describe NotificationsController do
+
+  describe "#index" do
+    let(:user) { create :user }
+    let(:notification) { create :notification, user: user }
+
+    it "assigns @notifications" do
+      sign_in user
+
+      get :index, debate: { title: 'A sample debate', description: 'this is a sample debate', terms_of_service: 1 }
+      expect(assigns(:notifications)).to eq user.notifications.unread.recent.for_render
+    end
+  end
+end