Provided basic tests for active admin resources.

spec/controllers/active_admin_spec.rb

@@ -0,0 +1,38 @@
+require 'rails_helper'
+
+ActiveAdmin.application.namespaces[:admin].resources.each do |resource|
+  resource_name = resource.resource_name.singular
+
+  describe resource.controller, type: :controller do
+    let(:admin) { create(:admin) }
+    let!(:model) { create(resource_name) if FactoryBot.factories.registered?(resource_name) }
+
+    render_views
+
+    before(:each) do
+      sign_in(admin)
+    end
+
+    if resource.is_a?(ActiveAdmin::Page) || resource.defined_actions.include?(:index)
+      describe "GET index" do
+        it "returns http success" do
+          get :index
+
+          expect(response.status).to eq(200)
+          expect(response).to have_http_status(:success)
+        end
+      end
+    end
+
+    if resource.is_a?(ActiveAdmin::Page) || resource.defined_actions.include?(:show)
+      describe "GET index" do
+        it "returns http success" do
+          get :index
+
+          expect(response.status).to eq(200)
+          expect(response).to be_success
+        end
+      end
+    end
+  end
+end

spec/rails_helper.rb

@@ -29,6 +29,7 @@
 # Add additional requires below this line. Rails is not loaded until this point!
 require 'factory_bot_rails'
 require 'shoulda/matchers'
+require 'devise'
 
 # Requires supporting ruby files with custom matchers and macros, etc, in
 # spec/support/ and its subdirectories. Files matching `spec/**/*_spec.rb` are
@@ -114,4 +115,5 @@
 
   config.include FactoryBot::Syntax::Methods
   config.order = 'random'
+  config.include Devise::Test::ControllerHelpers, :type => :controller
 end