FileFieldRSSContentTest.php

<?php

namespace Drupal\Tests\file\Functional;

use Drupal\file\Entity\File;

/**
 * Ensure that files added to nodes appear correctly in RSS feeds.
 *
 * @group file
 */
class FileFieldRSSContentTest extends FileFieldTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
        'views',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests RSS enclosure formatter display for RSS feeds.
     */
    public function testFileFieldRSSContent() {
        $node_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('node');
        $field_name = strtolower($this->randomMachineName());
        $type_name = 'article';
        $this->createFileField($field_name, 'node', $type_name);
        // RSS display must be added manually.
        $this->drupalGet("admin/structure/types/manage/{$type_name}/display");
        $edit = [
            "display_modes_custom[rss]" => '1',
        ];
        $this->submitForm($edit, 'Save');
        // Change the format to 'RSS enclosure'.
        $this->drupalGet("admin/structure/types/manage/{$type_name}/display/rss");
        $edit = [
            "fields[{$field_name}][type]" => 'file_rss_enclosure',
            "fields[{$field_name}][region]" => 'content',
        ];
        $this->submitForm($edit, 'Save');
        // Create a new node with a file field set. Promote to frontpage
        // needs to be set so this node will appear in the RSS feed.
        $node = $this->drupalCreateNode([
            'type' => $type_name,
            'promote' => 1,
        ]);
        $test_file = $this->getTestFile('text');
        // Create a new node with the uploaded file.
        $nid = $this->uploadNodeFile($test_file, $field_name, $node->id());
        // Get the uploaded file from the node.
        $node_storage->resetCache([
            $nid,
        ]);
        $node = $node_storage->load($nid);
        $node_file = File::load($node->{$field_name}->target_id);
        // Check that the RSS enclosure appears in the RSS feed.
        $this->drupalGet('rss.xml');
        $selector = sprintf('//enclosure[@url="%s" and @length="%s" and @type="%s"]', $node_file->createFileUrl(FALSE), $node_file->getSize(), $node_file->getMimeType());
        $this->assertNotEmpty($this->getSession()
            ->getDriver()
            ->find($selector), 'File field RSS enclosure is displayed when viewing the RSS feed.');
    }

}