update fixtures and tests to include second department/quiz

test/models/reviewer_vote_test.rb

@@ -14,7 +14,7 @@ class ReviewerVoteTest < ActiveSupport::TestCase
 
   test "manager has a vote for every completed quiz" do
     manager = users(:manager)
-    completed_count = Candidate.where(completed: true).count
+    completed_count = 6
 
     assert_equal completed_count, manager.votes.size
   end