def METHOD_NAME(self):
    path = 'http://testserver/addon/{id}/reviews/{id}345/path'
    self.request.path = path.format(id=self.addon.id)
    res = self.view(self.request, str(self.addon.id))
    redirection = 'http://testserver/addon/{slug}/reviews/{id}345/path'.format(
        id=self.addon.id, slug=quote(self.addon.slug.encode('utf8'))
    )
    self.assert3xx(res, redirection, 301)