class NodeRssCacheTest

class NodeRssCacheTest extends NodeTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node_test',
        'views',
        'node_test_views',
    ];
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_node_article_feed',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        ViewTestData::createTestViews(static::class, [
            'node_test_views',
        ]);
        // Use bypass node access permission here, because the test class uses
        // hook_grants_alter() to deny access to everyone on node_access
        // queries.
        $user = $this->drupalCreateUser([
            'bypass node access',
            'access content',
            'create article content',
        ]);
        $this->drupalLogin($user);
    }
    
    /**
     * Ensure the RSS teaser render does not interfere with default theme cache.
     */
    public function testNodeRssCacheContent() : void {
        // Only the plain_text text format is available by default, which escapes
        // all HTML.
        FilterFormat::create([
            'format' => 'full_html',
            'name' => 'Full HTML',
            'filters' => [],
        ])->save();
        // Create the test node.
        $node = $this->drupalCreateNode([
            'type' => 'article',
            'promote' => 1,
            'title' => 'Article Test Title',
            'body' => [
                'value' => '<p>Article test text.</p>',
                'format' => 'full_html',
            ],
        ]);
        // Render the node in the RSS feed view as a teaser.
        $this->drupalGet('test-node-article-feed');
        // Render the teaser normally.
        $viewBuilder = $this->container
            ->get('entity_type.manager')
            ->getViewBuilder('node');
        $build = $viewBuilder->view($node, 'teaser');
        $output = $this->container
            ->get('renderer')
            ->renderInIsolation($build);
        // Teaser must contain an "<article" tag from the stable9 theme.
        $this->assertStringContainsString('<article', (string) $output);
    }

}