diff --git a/tests/test_optimizely.py b/tests/test_optimizely.py
index 46e03265..15772b58 100644
--- a/tests/test_optimizely.py
+++ b/tests/test_optimizely.py
@@ -253,9 +253,9 @@ def test_init__sdk_key_and_datafile(self):
         self.assertIs(type(opt_obj.config_manager), config_manager.PollingConfigManager)
 
     def test_init__sdk_key_and_datafile_access_token(self):
-        """ 
-            Test that if both sdk_key and datafile_access_token is provided then AuthDatafilePollingConfigManager 
-            is used. 
+        """
+            Test that if both sdk_key and datafile_access_token is provided then AuthDatafilePollingConfigManager
+            is used.
         """
 
         with mock.patch('optimizely.config_manager.AuthDatafilePollingConfigManager._set_config'), mock.patch(