text: import json
  import os
  import unittest
  
  from onedrivesdk.helpers.http_provider_with_proxy import HttpProviderWithProxy
  
  from onedrive_client import get_resource, od_auth, od_api_session
  
  
  def get_sample_authenticator():
      auth = od_auth.OneDriveAuthenticator()
      session_params = json.loads(get_resource('data/session_response.json', pkg_name='tests'))
      session_params['token_type'] = 'code'
      session_params['client_id'] = auth.APP_CLIENT_ID
      session_params['scope_string'] = session_params['scope']
      session_params['redirect_uri'] = auth.APP_REDIRECT_URL
      session_params['auth_server_url'] = 'https://localhost/auth'
      del session_params['scope']
      auth.client.auth_provider._session = od_api_session.OneDriveAPISession(**session_params)
      auth.refresh_session = lambda x: None
      return auth
  
  
  class TestOneDriveAuthenticator(unittest.TestCase):
  
      def test_get_auth_url(self):
          authenticator = od_auth.OneDriveAuthenticator()
          self.assertIsInstance(authenticator.get_auth_url(), str)
  
      def test_get_proxies(self):
          for k in ('http_proxy', 'HTTP_PROXY', 'https_proxy', 'HTTPS_PROXY'):
              os.environ[k] = 'http://foo/bar'
              authenticator = od_auth.OneDriveAuthenticator()
              self.assertIsInstance(authenticator.client.http_provider, HttpProviderWithProxy)
              self.assertEqual({k.split('_')[0].lower(): 'http://foo/bar'}, authenticator.client.http_provider.proxies)
              del os.environ[k]
  
  
  if __name__ == '__main__':
      unittest.main()
  