diff --git a/nova/tests/test_network.py b/nova/tests/test_network.py
index 926ea065..ed77ccea 100644
--- a/nova/tests/test_network.py
+++ b/nova/tests/test_network.py
@@ -4,8 +4,7 @@
 # All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License"); you may
-# not use this file except in compliance with the License. You may obtain
-# a copy of the License at
+# not use this file except in compliance with the License. You may obtain # a copy of the License at
 #
 #      http://www.apache.org/licenses/LICENSE-2.0
 #
@@ -661,3 +660,12 @@ class CommonNetworkTestCase(test.TestCase):
         args = [None, 'foo', cidr, None, 10, 256, 'fd00::/48', None, None,
                 None]
         self.assertTrue(manager.create_networks(*args))
+
+    def get_instance_ids_by_ip_regex(self):
+        pass
+
+    def get_instance_ids_by_ipv6_regex(self):
+        pass
+
+    def get_instance_ids_by_ip(self):
+        pass