class_docstr: Test class for the BoxApp
docstr: BoxApp - Load Auth, Success
docstr_tok: ["BoxApp","-","Load","Auth",",","Success"]
code: def test_load_credentials(self):
      """BoxApp - Load Auth, Success"""
      assert_true(self._app._load_auth("fakedata"))
  
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 7 for calling the TestBoxApp obj's underlying member method code with example usage: obj.test_load_credentials() without return types