Enables additional languages.
protected function setupLanguages() {
  $this->langcodes = array(
    'it',
    'fr',
  );
  foreach ($this->langcodes as $langcode) {
    language_save(new Language(array(
      'langcode' => $langcode,
    )));
  }
  array_unshift($this->langcodes, language_default()->langcode);
}