displayTests example

public function testConfigurationEntityCRUD() {
    // Get the configuration entity type and controller.     $this->entityType = \Drupal::entityTypeManager()->getDefinition('view');
    $this->controller = $this->container->get('entity_type.manager')->getStorage('view');

    // Confirm that an info array has been returned.     $this->assertInstanceOf(EntityTypeInterface::class, $this->entityType);

    // CRUD tests.     $this->loadTests();
    $this->createTests();
    $this->displayTests();

    // Helper method tests     $this->displayMethodTests();
  }

  /** * Tests loading configuration entities. */
  protected function loadTests() {
    $view = View::load('test_view_storage');
    $data = $this->config('views.view.test_view_storage')->get();