code: def testGetConfigPathsForNoneWithNTA_CONF_PATHInEnv(
      self, environ, configPaths
  ):  # pylint: disable=W0613
      configuration.Configuration._configPaths = (
          None  # pylint: disable=W0212
      )
      env = {"NTA_CONF_PATH": ""}
      environ.__getitem__.side_effect = env.__getitem__
      environ.get.side_effect = env.get
      environ.__contains__.side_effect = env.__contains__
      result = configuration.Configuration.getConfigPaths()
      self.assertTrue(isinstance(result, list))
      self.assertEqual(len(result), 1)
      self.assertEqual(result[0], env["NTA_CONF_PATH"])
  
imports: from copy import copy
  import os
  import shutil
  from StringIO import StringIO
  import sys
  import tempfile
  import unittest2
  import uuid
  from pkg_resources import resource_filename
  from mock import Mock, patch
  from pkg_resources import resource_filename
  from xml.parsers.expat import ExpatError
  import nupic
  import nupic.support.configuration_custom
  import configuration_test
label_desc: Use image node_id 42 for calling the ConfigurationCustomTest obj's underlying member method code with example usage: obj.testGetConfigPathsForNoneWithNTA_CONF_PATHInEnv(environ, configPaths) without return types