added user feedback test

test/factories/user_feedback.rb

@@ -0,0 +1,6 @@
+Factory.define(:user_feedback) do |f|
+  f.user {|x| x.association(:user)}
+  f.creator {|x| x.association(:user)}
+  f.is_positive true
+  f.body {Faker::Lorem.words}
+end

test/unit/user_feedback_test.rb

@@ -1,8 +1,29 @@
-require 'test_helper'
+require File.dirname(__FILE__) + '/../test_helper'
 
 class UserFeedbackTest < ActiveSupport::TestCase
-  # Replace this with your real tests.
-  test "the truth" do
-    assert true
+  context "A user's feedback" do
+    should "should not validate if the creator is not privileged" do
+      user = Factory.create(:user)
+      admin = Factory.create(:admin_user)
+      moderator = Factory.create(:moderator_user)
+      janitor = Factory.create(:janitor_user)
+      contributor = Factory.create(:contributor_user)
+      privileged = Factory.create(:privileged_user)
+      member = Factory.create(:user)
+      
+      feedback = Factory.create(:user_feedback, :user => user, :creator => admin)
+      assert(feedback.errors.empty?)
+      feedback = Factory.create(:user_feedback, :user => user, :creator => moderator)
+      assert(feedback.errors.empty?)
+      feedback = Factory.create(:user_feedback, :user => user, :creator => janitor)
+      assert(feedback.errors.empty?)
+      feedback = Factory.create(:user_feedback, :user => user, :creator => contributor)
+      assert(feedback.errors.empty?)
+      feedback = Factory.create(:user_feedback, :user => user, :creator => privileged)
+      assert(feedback.errors.empty?)
+      feedback = Factory.build(:user_feedback, :user => user, :creator => member)
+      feedback.save
+      assert(feedback.errors.any?)
+    end
   end
 end