class RssFieldsTest

class RssFieldsTest extends ViewsKernelTestBase {
  use NodeCreationTrait;
  use ContentTypeCreationTrait;
  use UserCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'node',
    'field',
    'text',
    'filter',
  ];
  
  /**
   * {@inheritdoc}
   */
  public static $testViews = [
    'test_display_feed',
  ];
  
  /**
   * {@inheritdoc}
   */
  protected function setUp($import_test_views = TRUE) : void {
    parent::setUp($import_test_views);
    $this->installConfig([
      'node',
      'filter',
    ]);
    $this->installEntitySchema('user');
    $this->installEntitySchema('node');
    $this->installEntitySchema('path_alias');
    $this->createContentType([
      'type' => 'article',
    ]);
  }
  
  /**
   * Tests correct processing of link fields.
   *
   * This overlaps with \Drupal\Tests\views\Functional\Plugin\DisplayFeedTest to
   * ensure that root-relative links also work in a scenario without
   * subdirectory.
   */
  public function testLink() {
    // Set up the current user as uid 1 so the test doesn't need to deal with
    // permission.
    $this->setUpCurrentUser([
      'uid' => 1,
    ]);
    $node = $this->createNode([
      'type' => 'article',
      'title' => 'Article title',
      'body' => [
        0 => [
          'value' => 'A paragraph',
          'format' => filter_default_format(),
        ],
      ],
    ]);
    $node_url = $node->toUrl()
      ->setAbsolute()
      ->toString();
    $renderer = $this->container
      ->get('renderer');
    $view = Views::getView('test_display_feed');
    $output = $view->preview('feed_2');
    $output = (string) $renderer->renderRoot($output);
    $this->assertStringContainsString('<link>' . $node_url . '</link>', $output);
  }

}