Question

For a controller test, at the top of the spec I’m defining the models:

  let(:user) { Factory(:user, :company => company) }
  let(:facility) { Factory(:facility, :company => company) }
  let(:company) { Factory(:company, :facilities => [facility]) }

And do the basic index spec:

  context "responding to GET index" do
    it "should expose all facilities as @facilities" do
      user.company.should_receive(:facilities).and_return([facility])
      get :index
      assigns[:facilities].should == [facility]
    end
  end

But I’m getting this error:

should expose all facilities as @facilities
stack level too deep
/Users/dmix/.rvm/gems/ruby-1.9.3-p0/gems/rspec-core-2.6.4/lib/rspec/core/let.rb:90
88      module InstanceMethods
89        def __memoized # :nodoc:
90          @__memoized ||= {}
91        end
92      end

The problem seems to be referencing the 3 Factories at the same time.

If I remove the :facilities from the company factory definition, the stack error goes way:

let(:company) { Factory(:company) }

How do I factory three models that all reference each other without getting a stackoverflow?

Answer 1

The problem is that your facility and company objects reference each other. I think the :facilities => [facility] part of your company factory may be unnecessary, since you’re already designating the facility object’s company as company. Try this:

let(:facility) { Factory(:facility, :company => company) }
let(:company) { Factory(:company) }