Test to verify the authorization filter on custom bbb servers controller.
user
```ruby
require "spec_helper"

describe CustomBigbluebuttonServersController do
  include ActionController::AuthenticationTestHelper
  render_views

  before(:each) do
    @superuser = Factory(:superuser)
  end
  
  describe 'a Superadmin' do
    before(:each) do
      login_as(@superuser)
    end

    it "should show servers" do
      get :index
      
      assert_response 200
    end
  end
  
end
```
assistant