trait FileFieldTestBaseTrait

trait FileFieldTestBaseTrait {
    
    /**
     * Asserts that a file exists physically on disk.
     *
     * Overrides PHPUnit\Framework\Assert::assertFileExists() to also work with
     * file entities.
     *
     * @param \Drupal\File\FileInterface|string $file
     *   Either the file entity or the file URI.
     * @param string $message
     *   (optional) A message to display with the assertion.
     *
     * @see https://www.drupal.org/node/3057326
     */
    public static function assertFileExists($file, $message = NULL) {
        if ($file instanceof FileInterface) {
            @trigger_error('Passing a File entity as $file argument to FileFieldTestBase::assertFileExists is deprecated in drupal:8.8.0. It will be removed from drupal:9.0.0. Instead, pass the File entity URI via File::getFileUri(). See https://www.drupal.org/node/3057326', E_USER_DEPRECATED);
            $file = $file->getFileUri();
        }
        $message = isset($message) ? $message : new FormattableMarkup('File %file exists on the disk.', [
            '%file' => $file,
        ]);
        parent::assertFileExists($file, $message);
    }
    
    /**
     * Asserts that a file does not exist on disk.
     *
     * Overrides PHPUnit\Framework\Assert::assertFileNotExists() to also work
     * with file entities.
     *
     * @param \Drupal\File\FileInterface|string $file
     *   Either the file entity or the file URI.
     * @param string $message
     *   (optional) A message to display with the assertion.
     *
     * @see https://www.drupal.org/node/3057326
     */
    public static function assertFileNotExists($file, $message = NULL) {
        if ($file instanceof FileInterface) {
            @trigger_error('Passing a File entity as $file argument to FileFieldTestBase::assertFileNotExists is deprecated in drupal:8.8.0. It will be removed from drupal:9.0.0. Instead, pass the File entity URI via File::getFileUri(). See https://www.drupal.org/node/3057326', E_USER_DEPRECATED);
            $file = $file->getFileUri();
        }
        $message = isset($message) ? $message : new FormattableMarkup('File %file exists on the disk.', [
            '%file' => $file,
        ]);
        parent::assertFileNotExists($file, $message);
    }

}