class_docstr: Test class for the BoxApp
docstr: BoxApp - Create Client, Success
docstr_tok: ["BoxApp","-","Create","Client",",","Success"]
code: def test_create_client(self, auth_mock):
      """BoxApp - Create Client, Success"""
      assert_true(self._app._create_client())
      auth_mock.assert_called_with(self._app._config.auth["keyfile"])
  
imports: import json
  import os
  from boxsdk.exception import BoxException
  from mock import call, Mock, mock_open, patch
  from moto import mock_ssm
  from nose.tools import assert_equal, assert_false, assert_count_equal, assert_true
  import requests
  from streamalert.apps._apps.box import BoxApp
  from tests.unit.streamalert.apps.test_helpers import get_event, put_mock_params
  from tests.unit.streamalert.shared.test_config import get_mock_lambda_context
label_desc: Use image node_id 9 for calling the TestBoxApp obj's underlying member method code with example usage: obj.test_create_client(auth_mock) without return types