diff --git a/testing/test/fake_test.py b/testing/test/fake_test.py
index c098236..a710328 100644
--- a/testing/test/fake_test.py
+++ b/testing/test/fake_test.py
@@ -1,7 +1,6 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file or at
-# https://developers.google.com/open-source/licenses/bsd
+# Copyright 2016 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
 
 """Tests for the fake module."""
 from __future__ import print_function
@@ -9,6 +8,7 @@
 from __future__ import absolute_import
 
 import inspect
+import six
 import unittest
 
 from services import cachemanager_svc
@@ -44,9 +44,12 @@
       to_test = [x for x in both_attrs if '__' not in x]
       for name in to_test:
         real_attr = getattr(real_cls, name)
-        assert inspect.ismethod(real_attr)
-        real_spec = inspect.getargspec(real_attr)
-        fake_spec = inspect.getargspec(getattr(fake_cls, name))
+        if six.PY2:
+          assert inspect.ismethod(real_attr)
+        else:
+          assert inspect.isfunction(real_attr)
+        real_spec = inspect.getfullargspec(real_attr)
+        fake_spec = inspect.getfullargspec(getattr(fake_cls, name))
         # check same number of args and kwargs
         real_kw_len = len(real_spec[3]) if real_spec[3] else 0
         fake_kw_len = len(fake_spec[3]) if fake_spec[3] else 0
diff --git a/testing/test/testing_helpers_test.py b/testing/test/testing_helpers_test.py
index 7493b04..6e62f4e 100644
--- a/testing/test/testing_helpers_test.py
+++ b/testing/test/testing_helpers_test.py
@@ -1,7 +1,6 @@
-# Copyright 2016 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file or at
-# https://developers.google.com/open-source/licenses/bsd
+# Copyright 2016 The Chromium Authors
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
 
 """Tests for the testing_helpers module."""
 from __future__ import print_function