AutoCommit Mon Aug 3 08:03:01 CEST 2015

app/controllers/comments_controller.rb

@@ -3,10 +3,15 @@ class CommentsController < ApplicationController
   before_filter :decode_commentable_type
   def index
     @commentable=params[:commentable_type].constantize.find(params[:commentable_id]) unless params[:commentable_type].nil? or params[:commentable_id].nil?
+if @commentable.nil?
+  render status: 404
+  else
     @comments=@commentable.comments.order(:created_at).roots.accessible_by(current_ability, :show).page(params[:page]).per(Comment::NUM[params[:commentable_type]]).reverse_order
+
     respond_to do |format|
       format.js
     end
+end
   end
   def hide
     @commentable=params[:commentable_type].constantize.find(params[:commentable_id]) unless params[:commentable_type].nil? or params[:commentable_id].nil?

config/routes.rb

@@ -18,7 +18,7 @@
        end
      end
      resources :choices
-     resources :answers 
+
    end
    
   themes_for_rails

db/migrate/20150803060145_add_template_to_survey_question.rb

@@ -0,0 +1,4 @@
+class AddTemplateToSurveyQuestion < ActiveRecord::Migration
+  def change
+  end
+end

spec/controllers/comments_controller_spec.rb

@@ -32,9 +32,13 @@ describe CommentsController do
 
   describe "GET index" do
     it "assigns all comments as @comments" do
-      comment = Comment.create! valid_attributes
+      comment = Comment.create! valid_attributes # add items to database
       get :index, {}, valid_session
-      assigns(:comments).should eq([comment])
+      assigns(:comments).should eq([comment]) # check if all items are returned
+    end
+    it "has a 200 status code" do 
+      get :index
+      expect(response.status).to eq(200)
     end
   end