diff --git a/neutron/tests/tempest/api/test_floating_ips.py b/neutron/tests/tempest/api/test_floating_ips.py
index bafa54c..6e722db 100644
--- a/neutron/tests/tempest/api/test_floating_ips.py
+++ b/neutron/tests/tempest/api/test_floating_ips.py
@@ -100,4 +100,4 @@
         # disassociate
         body = self.client.update_floatingip(body['floatingip']['id'],
                                              port_id=None)
-        self.assertEqual(None, body['floatingip']['port_id'])
+        self.assertIsNone(body['floatingip']['port_id'])
diff --git a/neutron/tests/tempest/api/test_qos_negative.py b/neutron/tests/tempest/api/test_qos_negative.py
new file mode 100644
index 0000000..bc3222a
--- /dev/null
+++ b/neutron/tests/tempest/api/test_qos_negative.py
@@ -0,0 +1,50 @@
+#    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
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest.lib import exceptions as lib_exc
+from tempest import test
+
+from neutron.api.v2 import attributes as attr
+from neutron.tests.tempest.api import base
+
+LONG_NAME_NG = 'z' * (attr.NAME_MAX_LEN + 1)
+LONG_DESCRIPTION_NG = 'z' * (attr.LONG_DESCRIPTION_MAX_LEN + 1)
+LONG_TENANT_ID_NG = 'z' * (attr.TENANT_ID_MAX_LEN + 1)
+
+
+class QosNegativeTestJSON(base.BaseAdminNetworkTest):
+    @classmethod
+    @test.requires_ext(extension="qos", service="network")
+    def resource_setup(cls):
+        super(QosNegativeTestJSON, cls).resource_setup()
+
+    @test.attr(type='negative')
+    @test.idempotent_id('b9dce555-d3b3-11e5-950a-54ee757c77da')
+    def test_add_policy_with_too_long_name(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.client.create_qos_policy,
+                          LONG_NAME_NG, 'test policy desc1', False)
+
+    @test.attr(type='negative')
+    @test.idempotent_id('b9dce444-d3b3-11e5-950a-54ee747c99db')
+    def test_add_policy_with_too_long_description(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.client.create_qos_policy,
+                          'test-policy', LONG_DESCRIPTION_NG, False)
+
+    @test.attr(type='negative')
+    @test.idempotent_id('b9dce444-d3b3-11e5-950a-54ee757c77dc')
+    def test_add_policy_with_too_long_tenant_id(self):
+        self.assertRaises(lib_exc.BadRequest,
+                          self.client.create_qos_policy,
+                          'test-policy', 'test policy desc1',
+                          False, LONG_TENANT_ID_NG)