How to use the freezer.apiclient.exceptions.ApiClientException function in freezer

def test_stop_job_raise_ApiClientException_when_api_return_error_code(self, mock_requests):
        job_id = 'jobdfsfnqwerty1234'
        self.mock_response.status_code = 500
        self.mock_response.json.return_value = {'result': 'success'}
        mock_requests.post.return_value = self.mock_response
        self.assertRaises(exceptions.ApiClientException, self.job_manager.start_job, job_id)

def create(self, doc, action_id=''):
        action_id = action_id or doc.get('action_id', '')
        endpoint = self.endpoint + action_id
        r = requests.post(endpoint,
                          data=json.dumps(doc),
                          headers=self.headers,
                          verify=self.verify)
        if r.status_code != 201:
            raise exceptions.ApiClientException(r)
        action_id = r.json()['action_id']
        return action_id

:param job_id: the id of the job to start
        :return: the response obj:
                 {
                    result: string 'success' or 'already stopped'
                 }
        """
        # endpoint /v1/jobs/{job_id}/event
        endpoint = '{0}{1}/event'.format(self.endpoint, job_id)
        doc = {"stop": None}
        r = requests.post(endpoint,
                          headers=self.headers,
                          data=json.dumps(doc),
                          verify=self.verify)
        if r.status_code != 202:
            raise exceptions.ApiClientException(r)
        return r.json()

def create(self, doc, session_id=''):
        session_id = session_id or doc.get('session_id', '')
        endpoint = self.endpoint + session_id
        r = requests.post(endpoint,
                          data=json.dumps(doc),
                          headers=self.headers,
                          verify=self.verify)
        if r.status_code != 201:
            raise exceptions.ApiClientException(r)
        session_id = r.json()['session_id']
        return session_id

def get(self, session_id):
        endpoint = self.endpoint + session_id
        r = requests.get(endpoint, headers=self.headers, verify=self.verify)
        if r.status_code == 200:
            return r.json()
        if r.status_code == 404:
            return None
        raise exceptions.ApiClientException(r)

def delete(self, action_id):
        endpoint = self.endpoint + action_id
        r = requests.delete(endpoint,
                            headers=self.headers,
                            verify=self.verify)
        if r.status_code != 204:
            raise exceptions.ApiClientException(r)

def delete(self, client_id):
        endpoint = self.endpoint + client_id
        r = requests.delete(endpoint, headers=self.headers,
                            verify=self.verify)
        if r.status_code != 204:
            raise exceptions.ApiClientException(r)

def get(self, backup_id):
        endpoint = self.endpoint + backup_id
        r = requests.get(endpoint, headers=self.headers, verify=self.verify)
        if r.status_code == 200:
            return r.json()
        if r.status_code == 404:
            return None
        raise exceptions.ApiClientException(r)