def METHOD_NAME(self):
    self.assertFalse(self.carrier.prod_environment)
    self.carrier.toggle_prod_environment()
    self.carrier.onchange_prod_environment()
    self.assertTrue(self.carrier.prod_environment)
    self.carrier.toggle_prod_environment()
    self.carrier.onchange_prod_environment()
    self.assertFalse(self.carrier.prod_environment)
    self.assertEqual(
        self.carrier.get_tracking_link(self.picking),
        "https://service.post.ch/EasyTrack/"
        "submitParcelData.do?formattedParcelCodes=False",
    )