How to test rails_admin actions in any ActiveRecord?

Question

I have a hotel.rb file. I used RSpec to test validations, associations and other actions, but how do I test the rails_admin block? Any sample code will be really appreciated.

    class Hotel < ActiveRecord::Base

        belongs_to :city

        validates_uniqueness_of :name, scope: :city_id

        # how do I test this?
        rails_admin do
            visible false
        end

    end

Answer 1

You can get the abstract model, that the rails admin is using, and read the config from it.

Small example for Rspec:

subject { RailsAdmin::AbstractModel.new('Hotel') }

it 'is invisible for rails admin' do
  expect(subject.config.hidden?).to eql true
end

Answer 2

Normally you don't have to test functionality that other gems provide. It's the responsibility of the authors of that Gem.

Is there any specific reason you want to test this?