class UserNameFormatterTest

class UserNameFormatterTest extends KernelTestBase {
  
  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = [
    'field',
    'user',
    'system',
  ];
  
  /**
   * @var string
   */
  protected $entityType;
  
  /**
   * @var string
   */
  protected $bundle;
  
  /**
   * @var string
   */
  protected $fieldName;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->installConfig([
      'field',
    ]);
    $this->installEntitySchema('user');
    $this->installSchema('system', [
      'sequences',
    ]);
    $this->entityType = 'user';
    $this->bundle = $this->entityType;
    $this->fieldName = 'name';
  }
  
  /**
   * Renders fields of a given entity with a given display.
   *
   * @param \Drupal\Core\Entity\FieldableEntityInterface $entity
   *   The entity object with attached fields to render.
   * @param \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display
   *   The display to render the fields in.
   *
   * @return string
   *   The rendered entity fields.
   */
  protected function renderEntityFields(FieldableEntityInterface $entity, EntityViewDisplayInterface $display) {
    $content = $display->build($entity);
    $content = $this->render($content);
    return $content;
  }
  
  /**
   * Tests the formatter output.
   */
  public function testFormatter() {
    $user = User::create([
      'name' => 'test name',
    ]);
    $user->save();
    $result = $user->{$this->fieldName}
      ->view([
      'type' => 'user_name',
    ]);
    $this->assertEquals('username', $result[0]['#theme']);
    $this->assertEquals(spl_object_hash($user), spl_object_hash($result[0]['#account']));
    $result = $user->{$this->fieldName}
      ->view([
      'type' => 'user_name',
      'settings' => [
        'link_to_entity' => FALSE,
      ],
    ]);
    $this->assertEquals($user->getDisplayName(), $result[0]['#markup']);
    $user = User::getAnonymousUser();
    $result = $user->{$this->fieldName}
      ->view([
      'type' => 'user_name',
    ]);
    $this->assertEquals('username', $result[0]['#theme']);
    $this->assertEquals(spl_object_hash($user), spl_object_hash($result[0]['#account']));
    $result = $user->{$this->fieldName}
      ->view([
      'type' => 'user_name',
      'settings' => [
        'link_to_entity' => FALSE,
      ],
    ]);
    $this->assertEquals($user->getDisplayName(), $result[0]['#markup']);
    $this->assertEquals($this->config('user.settings')
      ->get('anonymous'), $result[0]['#markup']);
  }

}