Add specs for application settings

ee/spec/controllers/admin/application_settings_controller_spec.rb

@@ -81,6 +81,15 @@ describe Admin::ApplicationSettingsController do
       it_behaves_like 'settings for licensed features'
     end
 
+    context 'default project deletion protection' do
+      let(:settings) do
+        { default_project_deletion_protection: true }
+      end
+      let(:feature) { :default_project_deletion_protection }
+
+      it_behaves_like 'settings for licensed features'
+    end
+
     context 'additional email footer' do
       let(:settings) { { email_additional_text: 'scary legal footer' } }
       let(:feature) { :email_additional_text }