```ruby
require 'rails_helper'

RSpec.describe LinksController, type: :controller do
end
```

Add simple link controller test
user
```ruby
require 'rails_helper'

RSpec.describe LinksController, type: :controller do
  before do
    @local_authority = FactoryGirl.create(:local_authority, name: 'Angus')
    @service = FactoryGirl.create(:service, label: 'Service 1', lgsl_code: 1)
    @interaction = FactoryGirl.create(:interaction, label: 'Interaction 1', lgil_code: 3)
  end

  describe 'GET edit' do
    it 'retrieves HTTP success' do
      login_as_stub_user

      get :edit, local_authority_slug: @local_authority.slug, service_slug: @service.slug, interaction_slug: @interaction.slug
      expect(response).to have_http_status(:success)
    end
  end
end
```
assistant