def METHOD_NAME(self):
    """
    Retrieve session for which signal is no longer in state REACTIE_GEVRAAGD
    """
    new_status = StatusFactory.create(state=workflow.GEMELD, text='NEW STATE', _signal=self.signal)
    new_status.save()
    self.signal.status = new_status
    self.signal.save()
    self.signal.refresh_from_db()
    with freeze_time(self.t_answer_in_time):
        response = self.client.get(self.session_url)
    response_json = response.json()
    self.assertEqual(response.status_code, 500)
    expected = f'Session {self.session.uuid} is invalidated, associated signal not in state REACTIE_GEVRAAGD.'
    self.assertEqual(response_json['detail'], expected)