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-rw-r--r--oslo_middleware/tests/test_cors.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/oslo_middleware/tests/test_cors.py b/oslo_middleware/tests/test_cors.py
index de91c34..8df428b 100644
--- a/oslo_middleware/tests/test_cors.py
+++ b/oslo_middleware/tests/test_cors.py
@@ -131,7 +131,7 @@ class CORSTestFilterFactory(test_base.BaseTestCase):
config = application.allowed_origins['http://valid.example.com']
self.assertEqual(False, config['allow_credentials'])
- self.assertEqual(None, config['max_age'])
+ self.assertIsNone(config['max_age'])
self.assertEqual([], config['expose_headers'])
self.assertEqual(['GET'], config['allow_methods'])
self.assertEqual([], config['allow_headers'])