diff --git a/openstackclient/tests/network/v2/test_security_group.py b/openstackclient/tests/network/v2/test_security_group.py
index 98388ec7cb..72da14009c 100644
--- a/openstackclient/tests/network/v2/test_security_group.py
+++ b/openstackclient/tests/network/v2/test_security_group.py
@@ -61,7 +61,7 @@ class TestDeleteSecurityGroupNetwork(TestSecurityGroup):
 
         self.network.delete_security_group.assert_called_with(
             self._security_group)
-        self.assertEqual(None, result)
+        self.assertIsNone(result)
 
 
 class TestDeleteSecurityGroupCompute(TestSecurityGroup):
@@ -96,4 +96,4 @@ class TestDeleteSecurityGroupCompute(TestSecurityGroup):
 
         self.compute.security_groups.delete.assert_called_with(
             self._security_group.id)
-        self.assertEqual(None, result)
+        self.assertIsNone(result)
diff --git a/openstackclient/tests/network/v2/test_security_group_rule.py b/openstackclient/tests/network/v2/test_security_group_rule.py
index e07066329c..c6ef388461 100644
--- a/openstackclient/tests/network/v2/test_security_group_rule.py
+++ b/openstackclient/tests/network/v2/test_security_group_rule.py
@@ -67,7 +67,7 @@ class TestDeleteSecurityGroupRuleNetwork(TestSecurityGroupRuleNetwork):
 
         self.network.delete_security_group_rule.assert_called_with(
             self._security_group_rule)
-        self.assertEqual(None, result)
+        self.assertIsNone(result)
 
 
 class TestDeleteSecurityGroupRuleCompute(TestSecurityGroupRuleCompute):
@@ -97,4 +97,4 @@ class TestDeleteSecurityGroupRuleCompute(TestSecurityGroupRuleCompute):
 
         self.compute.security_group_rules.delete.assert_called_with(
             self._security_group_rule.id)
-        self.assertEqual(None, result)
+        self.assertIsNone(result)
diff --git a/openstackclient/tests/object/v1/test_container.py b/openstackclient/tests/object/v1/test_container.py
index 5b0fb48a34..6982295de3 100644
--- a/openstackclient/tests/object/v1/test_container.py
+++ b/openstackclient/tests/object/v1/test_container.py
@@ -67,7 +67,7 @@ class TestContainerDelete(TestContainer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.assertEqual(None, self.cmd.take_action(parsed_args))
+        self.assertIsNone(self.cmd.take_action(parsed_args))
 
         kwargs = {}
         c_mock.assert_called_with(
@@ -92,7 +92,7 @@ class TestContainerDelete(TestContainer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.assertEqual(None, self.cmd.take_action(parsed_args))
+        self.assertIsNone(self.cmd.take_action(parsed_args))
 
         kwargs = {}
         c_mock.assert_called_with(
@@ -120,7 +120,7 @@ class TestContainerDelete(TestContainer):
         ]
         parsed_args = self.check_parser(self.cmd, arglist, verifylist)
 
-        self.assertEqual(None, self.cmd.take_action(parsed_args))
+        self.assertIsNone(self.cmd.take_action(parsed_args))
 
         kwargs = {}
         c_mock.assert_called_with(