utilikit-1.0.0/modules/utilikit_test/utilikit_test.routing.yml

utilikit_test.suite:
  path: '/admin/config/development/utilikit/test-suite'
  defaults:
    _controller: '\Drupal\utilikit_test\Controller\TestSuiteController::render'
    _title: 'Test Suite'
  requirements:
    _permission: 'run utilikit tests'
  options:
    _admin_route: TRUE