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);
    }

}