first steps towards testing the redirect with regards to user_feedbacks

spec/factories/user_exercise_feedback.rb

@@ -0,0 +1,7 @@
+FactoryGirl.define do
+  factory :user_exercise_feedback, class: UserExerciseFeedback do
+    created_by_external_user
+    feedback_text 'Most suitable exercise ever'
+  end
+
+end