muzich/vendor/swiftmailer/tests/acceptance/Swift/AttachmentAcceptanceTest.php

<?php

require_once 'swift_required.php';
require_once 'Swift/Mime/AttachmentAcceptanceTest.php';

class Swift_AttachmentAcceptanceTest
  extends Swift_Mime_AttachmentAcceptanceTest
{
  
  protected function _createAttachment()
  {
    return Swift_Attachment::newInstance();
  }
  
}