code: def test_load_default_env(self):
      folder = tempfile.mkdtemp()
      if os.path.isdir(os.path.join(os.path.expanduser("~"), ".aup")):
          self.assertRaises(
              ValueError,
              utils.load_default_env,
              folder,
              use_default=False,
          )
          self.assertIsInstance(utils.load_default_env(folder), dict)
      else:
          self.assertRaises(Exception, utils.load_default_env, folder)
  
file_path: auptimizer/tests/test_utils.py
imports: import unittest
  import os
  import sys
  from six import StringIO
  from aup import utils
  import tempfile
label_desc: Use image node_id 4 for calling the UtilTestCase obj's underlying member method code with example usage: obj.test_load_default_env() without return types