MediaTemplateSuggestionsTest.php

<?php

namespace Drupal\Tests\media\Functional;

use Drupal\media\Entity\Media;

/**
 * Tests media template suggestions.
 *
 * @group media
 */
class MediaTemplateSuggestionsTest extends MediaFunctionalTestBase {
    
    /**
     * Modules to install.
     *
     * @var array
     */
    public static $modules = [
        'media',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests template suggestions from media_theme_suggestions_media().
     */
    public function testMediaThemeHookSuggestions() {
        $media_type = $this->createMediaType('test', [
            'queue_thumbnail_downloads' => FALSE,
        ]);
        // Create media item to be rendered.
        $media = Media::create([
            'bundle' => $media_type->id(),
            'name' => 'Unnamed',
        ]);
        $media->save();
        $view_mode = 'full';
        // Simulate theming of the media item.
        $build = \Drupal::entityTypeManager()->getViewBuilder('media')
            ->view($media, $view_mode);
        $variables['elements'] = $build;
        $suggestions = \Drupal::moduleHandler()->invokeAll('theme_suggestions_media', [
            $variables,
        ]);
        $this->assertSame($suggestions, [
            'media__full',
            'media__' . $media_type->id(),
            'media__' . $media_type->id() . '__full',
            'media__source_' . $media_type->getSource()
                ->getPluginId(),
        ], 'Found expected media suggestions.');
    }

}