class TestContent

class TestContent extends ControllerBase {
  
  /**
   * The HTTP kernel.
   *
   * @var \Symfony\Component\HttpKernel\HttpKernelInterface
   */
  protected $httpKernel;
  
  /**
   * Constructs a TestContent instance.
   */
  public function __construct(HttpKernelInterface $http_kernel) {
    $this->httpKernel = $http_kernel;
  }
  
  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container->get('http_kernel'));
  }
  
  /**
   * Provides example content for testing route enhancers.
   */
  public function test1() {
    return [
      '#markup' => 'abcde',
    ];
  }
  
  /**
   * Provides example content for route specific authentication.
   *
   * @returns string
   *   The user name of the current logged in user.
   */
  public function test11() {
    $account = $this->currentUser();
    return [
      '#markup' => $account->getAccountName(),
    ];
  }
  public function testAccount(UserInterface $user) {
    $current_user_name = $this->currentUser()
      ->getAccountName();
    $this->currentUser()
      ->setAccount($user);
    return [
      '#markup' => $current_user_name . ':' . $user->getAccountName(),
    ];
  }
  
  /**
   * Uses a subrequest to determine the content.
   */
  public function subrequestTest(UserInterface $user) {
    $request = \Drupal::request();
    $request = Request::create('/router_test/test13/' . $user->id(), 'GET', $request->query
      ->all(), $request->cookies
      ->all(), [], $request->server
      ->all());
    return $this->httpKernel
      ->handle($request, HttpKernelInterface::SUB_REQUEST);
  }

}