class FileVideoPosterFormatterTest

class FileVideoPosterFormatterTest extends FileFieldTestBase {
  use ImageFieldCreationTrait;
  
  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';
  
  /**
   * {@inheritdoc}
   */
  protected static $modules = [
    'image',
  ];
  
  /**
   * Tests rendering poster on video.
   */
  public function testPosterNoImageStyle() : void {
    // Video field configuration.
    $video_fieldname = 'field_' . mb_strtolower($this->randomMachineName());
    $this->createFileField($video_fieldname, 'node', 'article', [], [
      'file_extensions' => 'mp4',
    ]);
    // Poster image field configuration.
    $poster_fieldname = 'field_' . mb_strtolower($this->randomMachineName());
    $this->createImageField($poster_fieldname, 'node', 'article', [], [
      'file_extensions' => 'jpg',
    ]);
    // Configure node display.
    $display = \Drupal::service('entity_display.repository')->getViewDisplay('node', 'article');
    $display_options = [
      'type' => 'file_video',
      'settings' => [
        'poster' => $poster_fieldname,
        'poster_image_style' => '',
      ],
    ];
    $display->setComponent($video_fieldname, $display_options)
      ->save();
    // Create files.
    file_put_contents('public://file.mp4', str_repeat('t', 10));
    $video1 = File::create([
      'uri' => 'public://file.mp4',
      'filename' => 'file.mp4',
    ]);
    $video1->save();
    $file_url = \Drupal::service('file_url_generator')->generate($video1->getFileUri())
      ->toString();
    file_put_contents('public://file.jpg', str_repeat('t', 10));
    $poster1 = File::create([
      'uri' => 'public://file.jpg',
      'filename' => 'file.jpg',
    ]);
    $poster1->save();
    $poster_url = \Drupal::service('file_url_generator')->generate($poster1->getFileUri())
      ->toString();
    // Create test node.
    $node = $this->drupalCreateNode([
      'title' => 'Hello, world!',
      'type' => 'article',
      $video_fieldname => [
        [
          'target_id' => $video1->id(),
        ],
      ],
      $poster_fieldname => [
        [
          'target_id' => $poster1->id(),
        ],
      ],
    ]);
    $node->save();
    $this->drupalGet('/node/' . $node->id());
    $assert_session = $this->assertSession();
    $assert_session->elementExists('css', "video > source[src='{$file_url}'][type='video/mp4']");
    $assert_session->elementExists('css', "video[poster='{$poster_url}']");
  }
  
  /**
   * Tests rendering poster on video using an image style.
   */
  public function testPosterImageStyle() : void {
    // Video field configuration.
    $video_fieldname = 'field_' . mb_strtolower($this->randomMachineName());
    $this->createFileField($video_fieldname, 'node', 'article', [], [
      'file_extensions' => 'mp4',
    ]);
    // Poster image field configuration.
    $poster_fieldname = 'field_' . mb_strtolower($this->randomMachineName());
    $this->createImageField($poster_fieldname, 'node', 'article', [], [
      'file_extensions' => 'jpg',
    ]);
    // Configure node display.
    $display = \Drupal::service('entity_display.repository')->getViewDisplay('node', 'article');
    $display_options = [
      'type' => 'file_video',
      'settings' => [
        'poster' => $poster_fieldname,
        'poster_image_style' => 'medium',
      ],
    ];
    $display->setComponent($video_fieldname, $display_options)
      ->save();
    // Create files.
    file_put_contents('public://file.mp4', str_repeat('t', 10));
    $video1 = File::create([
      'uri' => 'public://file.mp4',
      'filename' => 'file.mp4',
    ]);
    $video1->save();
    $file_url = \Drupal::service('file_url_generator')->generate($video1->getFileUri())
      ->toString();
    file_put_contents('public://file.jpg', str_repeat('t', 10));
    $poster1 = File::create([
      'uri' => 'public://file.jpg',
      'filename' => 'file.jpg',
    ]);
    $poster1->save();
    // Create test node.
    $node = $this->drupalCreateNode([
      'title' => 'Hello, world!',
      'type' => 'article',
      $video_fieldname => [
        [
          'target_id' => $video1->id(),
        ],
      ],
      $poster_fieldname => [
        [
          'target_id' => $poster1->id(),
        ],
      ],
    ]);
    $node->save();
    $this->drupalGet('/node/' . $node->id());
    $assert_session = $this->assertSession();
    $assert_session->elementExists('css', "video > source[src='{$file_url}'][type='video/mp4']");
    // Ensure the image style is served:
    $assert_session->elementAttributeContains('css', 'video', 'poster', 'styles/medium/public/file.jpg');
  }

}