test: ensure stories are hidden in active tab

spec/models/story_repository_spec.rb

@@ -13,6 +13,19 @@ describe StoryRepository do
 
       expect(repo.active).to eq([newer_comment.story, older_comment.story])
     end
+
+    it "does not show hidden stories" do
+      hidden_story = create(:story)
+      normal_story = create(:story)
+      create(:comment, story: hidden_story)
+      normal_comment = create(:comment, story: normal_story)
+
+      HiddenStory.hide_story_for_user(hidden_story.id, hidden_story.user_id)
+      hidden_story_user = User.find_by(:id => hidden_story.user_id)
+
+      repo = StoryRepository.new(hidden_story_user)
+      expect(repo.active).to eq([normal_comment.story])
+    end
   end
 
   describe ".newest_by_user" do