class FastTest

class FastTest extends BrowserTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'theme_test',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * User allowed to access use profiles.
   *
   * @var \Drupal\user\Entity\User
   */
  protected $account;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->account = $this->drupalCreateUser([
      'access user profiles',
    ]);
  }
  
  /**
   * Tests access to user autocompletion and verify the correct results.
   */
  public function testUserAutocomplete() {
    $this->drupalLogin($this->account);
    $this->drupalGet('user/autocomplete', [
      'query' => [
        'q' => $this->account
          ->getAccountName(),
      ],
    ]);
    $this->assertSession()
      ->responseContains($this->account
      ->getAccountName());
    $this->assertSession()
      ->pageTextNotContains('registry initialized');
  }

}