Question

I’m testing a controller action that uses includes in the find statement. It raises RecordNotFound when the test runs. Am I missing something? How should I be handling tests on such things?

Controller:

def show
  @forum_sub_topic = ForumSubTopic.includes(:forum_posts => [:post_replies]).find(params[:id])
  respond_to do |format|
    format.html # show.html.erb
    format.xml  { render :xml => @forum_sub_topic }
  end
end

Test:

it 'renders show template' do
  ForumSubTopic.stub(:find).with("37") { mock_forum_sub_topic }
  get :show, :id => "37"
  response.should render_template('show')
ebd

Answer 1

You’re stubbing :find on ForumSubTopic, but your controller is calling .find on an ActiveRecord::Relation object rather than the ForumSubTopic model.

If you don’t care so much about the with("37") part (because I’m not sure if it’s possible doing this), RSpec provides a stub_chain method that should work for you:

ForumSubTopic.stub_chain(:includes, :find) { mock_forum_sub_topic }

Otherwise, you could put multiple stubs in:

ForumSubTopic.stub(:includes) { ForumSubTopic }
ForumSubTopic.stub(:find).with("37") { mock_forum_sub_topic }