diff --git a/tempest/api/identity/admin/test_tenant_negative.py b/tempest/api/identity/admin/test_tenant_negative.py
new file mode 100644
index 0000000..6875bf5
--- /dev/null
+++ b/tempest/api/identity/admin/test_tenant_negative.py
@@ -0,0 +1,148 @@
+# vim: tabstop=4 shiftwidth=4 softtabstop=4
+
+# Copyright 2013 Huawei Technologies Co.,LTD.
+# 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
+#
+#         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.
+
+import uuid
+
+from tempest.api.identity import base
+from tempest.common.utils import data_utils
+from tempest import exceptions
+from tempest.test import attr
+
+
+class TenantsNegativeTestJSON(base.BaseIdentityAdminTest):
+    _interface = 'json'
+
+    @attr(type=['negative', 'gate'])
+    def test_list_tenants_by_unauthorized_user(self):
+        # Non-administrator user should not be able to list tenants
+        self.assertRaises(exceptions.Unauthorized,
+                          self.non_admin_client.list_tenants)
+
+    @attr(type=['negative', 'gate'])
+    def test_list_tenant_request_without_token(self):
+        # Request to list tenants without a valid token should fail
+        token = self.client.get_auth()
+        self.client.delete_token(token)
+        self.assertRaises(exceptions.Unauthorized, self.client.list_tenants)
+        self.client.clear_auth()
+
+    @attr(type=['negative', 'gate'])
+    def test_tenant_delete_by_unauthorized_user(self):
+        # Non-administrator user should not be able to delete a tenant
+        tenant_name = data_utils.rand_name(name='tenant-')
+        resp, tenant = self.client.create_tenant(tenant_name)
+        self.assertEqual(200, resp.status)
+        self.data.tenants.append(tenant)
+        self.assertRaises(exceptions.Unauthorized,
+                          self.non_admin_client.delete_tenant, tenant['id'])
+
+    @attr(type=['negative', 'gate'])
+    def test_tenant_delete_request_without_token(self):
+        # Request to delete a tenant without a valid token should fail
+        tenant_name = data_utils.rand_name(name='tenant-')
+        resp, tenant = self.client.create_tenant(tenant_name)
+        self.assertEqual(200, resp.status)
+        self.data.tenants.append(tenant)
+        token = self.client.get_auth()
+        self.client.delete_token(token)
+        self.assertRaises(exceptions.Unauthorized, self.client.delete_tenant,
+                          tenant['id'])
+        self.client.clear_auth()
+
+    @attr(type=['negative', 'gate'])
+    def test_delete_non_existent_tenant(self):
+        # Attempt to delete a non existent tenant should fail
+        self.assertRaises(exceptions.NotFound, self.client.delete_tenant,
+                          str(uuid.uuid4().hex))
+
+    @attr(type=['negative', 'gate'])
+    def test_tenant_create_duplicate(self):
+        # Tenant names should be unique
+        tenant_name = data_utils.rand_name(name='tenant-')
+        resp, body = self.client.create_tenant(tenant_name)
+        self.assertEqual(200, resp.status)
+        tenant = body
+        self.data.tenants.append(tenant)
+        tenant1_id = body.get('id')
+
+        self.addCleanup(self.client.delete_tenant, tenant1_id)
+        self.addCleanup(self.data.tenants.remove, tenant)
+        self.assertRaises(exceptions.Duplicate, self.client.create_tenant,
+                          tenant_name)
+
+    @attr(type=['negative', 'gate'])
+    def test_create_tenant_by_unauthorized_user(self):
+        # Non-administrator user should not be authorized to create a tenant
+        tenant_name = data_utils.rand_name(name='tenant-')
+        self.assertRaises(exceptions.Unauthorized,
+                          self.non_admin_client.create_tenant, tenant_name)
+
+    @attr(type=['negative', 'gate'])
+    def test_create_tenant_request_without_token(self):
+        # Create tenant request without a token should not be authorized
+        tenant_name = data_utils.rand_name(name='tenant-')
+        token = self.client.get_auth()
+        self.client.delete_token(token)
+        self.assertRaises(exceptions.Unauthorized, self.client.create_tenant,
+                          tenant_name)
+        self.client.clear_auth()
+
+    @attr(type=['negative', 'gate'])
+    def test_create_tenant_with_empty_name(self):
+        # Tenant name should not be empty
+        self.assertRaises(exceptions.BadRequest, self.client.create_tenant,
+                          name='')
+
+    @attr(type=['negative', 'gate'])
+    def test_create_tenants_name_length_over_64(self):
+        # Tenant name length should not be greater than 64 characters
+        tenant_name = 'a' * 65
+        self.assertRaises(exceptions.BadRequest, self.client.create_tenant,
+                          tenant_name)
+
+    @attr(type=['negative', 'gate'])
+    def test_update_non_existent_tenant(self):
+        # Attempt to update a non existent tenant should fail
+        self.assertRaises(exceptions.NotFound, self.client.update_tenant,
+                          str(uuid.uuid4().hex))
+
+    @attr(type=['negative', 'gate'])
+    def test_tenant_update_by_unauthorized_user(self):
+        # Non-administrator user should not be able to update a tenant
+        tenant_name = data_utils.rand_name(name='tenant-')
+        resp, tenant = self.client.create_tenant(tenant_name)
+        self.assertEqual(200, resp.status)
+        self.data.tenants.append(tenant)
+        self.assertRaises(exceptions.Unauthorized,
+                          self.non_admin_client.update_tenant, tenant['id'])
+
+    @attr(type=['negative', 'gate'])
+    def test_tenant_update_request_without_token(self):
+        # Request to update a tenant without a valid token should fail
+        tenant_name = data_utils.rand_name(name='tenant-')
+        resp, tenant = self.client.create_tenant(tenant_name)
+        self.assertEqual(200, resp.status)
+        self.data.tenants.append(tenant)
+        token = self.client.get_auth()
+        self.client.delete_token(token)
+        self.assertRaises(exceptions.Unauthorized, self.client.update_tenant,
+                          tenant['id'])
+        self.client.clear_auth()
+
+
+class TenantsNegativeTestXML(TenantsNegativeTestJSON):
+    _interface = 'xml'
diff --git a/tempest/api/identity/admin/test_tenants.py b/tempest/api/identity/admin/test_tenants.py
index 486b739..e36b543 100644
--- a/tempest/api/identity/admin/test_tenants.py
+++ b/tempest/api/identity/admin/test_tenants.py
@@ -16,8 +16,7 @@
 #    under the License.
 
 from tempest.api.identity import base
-from tempest.common.utils.data_utils import rand_name
-from tempest import exceptions
+from tempest.common.utils import data_utils
 from tempest.test import attr
 
 
@@ -25,25 +24,13 @@
     _interface = 'json'
 
     @attr(type='gate')
-    def test_list_tenants_by_unauthorized_user(self):
-        # Non-administrator user should not be able to list tenants
-        self.assertRaises(exceptions.Unauthorized,
-                          self.non_admin_client.list_tenants)
-
-    @attr(type='gate')
-    def test_list_tenant_request_without_token(self):
-        # Request to list tenants without a valid token should fail
-        token = self.client.get_auth()
-        self.client.delete_token(token)
-        self.assertRaises(exceptions.Unauthorized, self.client.list_tenants)
-        self.client.clear_auth()
-
-    @attr(type='gate')
     def test_tenant_list_delete(self):
         # Create several tenants and delete them
         tenants = []
         for _ in xrange(3):
-            resp, tenant = self.client.create_tenant(rand_name('tenant-new'))
+            tenant_name = data_utils.rand_name(name='tenant-new')
+            resp, tenant = self.client.create_tenant(tenant_name)
+            self.assertEqual(200, resp.status)
             self.data.tenants.append(tenant)
             tenants.append(tenant)
         tenant_ids = map(lambda x: x['id'], tenants)
@@ -62,37 +49,10 @@
         self.assertFalse(any(found), 'Tenants failed to delete')
 
     @attr(type='gate')
-    def test_tenant_delete_by_unauthorized_user(self):
-        # Non-administrator user should not be able to delete a tenant
-        tenant_name = rand_name('tenant-')
-        resp, tenant = self.client.create_tenant(tenant_name)
-        self.data.tenants.append(tenant)
-        self.assertRaises(exceptions.Unauthorized,
-                          self.non_admin_client.delete_tenant, tenant['id'])
-
-    @attr(type='gate')
-    def test_tenant_delete_request_without_token(self):
-        # Request to delete a tenant without a valid token should fail
-        tenant_name = rand_name('tenant-')
-        resp, tenant = self.client.create_tenant(tenant_name)
-        self.data.tenants.append(tenant)
-        token = self.client.get_auth()
-        self.client.delete_token(token)
-        self.assertRaises(exceptions.Unauthorized, self.client.delete_tenant,
-                          tenant['id'])
-        self.client.clear_auth()
-
-    @attr(type='gate')
-    def test_delete_non_existent_tenant(self):
-        # Attempt to delete a non existent tenant should fail
-        self.assertRaises(exceptions.NotFound, self.client.delete_tenant,
-                          'junk_tenant_123456abc')
-
-    @attr(type='gate')
     def test_tenant_create_with_description(self):
         # Create tenant with a description
-        tenant_name = rand_name('tenant-')
-        tenant_desc = rand_name('desc-')
+        tenant_name = data_utils.rand_name(name='tenant-')
+        tenant_desc = data_utils.rand_name(name='desc-')
         resp, body = self.client.create_tenant(tenant_name,
                                                description=tenant_desc)
         tenant = body
@@ -113,7 +73,7 @@
     @attr(type='gate')
     def test_tenant_create_enabled(self):
         # Create a tenant that is enabled
-        tenant_name = rand_name('tenant-')
+        tenant_name = data_utils.rand_name(name='tenant-')
         resp, body = self.client.create_tenant(tenant_name, enabled=True)
         tenant = body
         self.data.tenants.append(tenant)
@@ -131,7 +91,7 @@
     @attr(type='gate')
     def test_tenant_create_not_enabled(self):
         # Create a tenant that is not enabled
-        tenant_name = rand_name('tenant-')
+        tenant_name = data_utils.rand_name(name='tenant-')
         resp, body = self.client.create_tenant(tenant_name, enabled=False)
         tenant = body
         self.data.tenants.append(tenant)
@@ -149,61 +109,18 @@
         self.data.tenants.remove(tenant)
 
     @attr(type='gate')
-    def test_tenant_create_duplicate(self):
-        # Tenant names should be unique
-        tenant_name = rand_name('tenant-dup-')
-        resp, body = self.client.create_tenant(tenant_name)
-        tenant = body
-        self.data.tenants.append(tenant)
-        tenant1_id = body.get('id')
-
-        self.addCleanup(self.client.delete_tenant, tenant1_id)
-        self.addCleanup(self.data.tenants.remove, tenant)
-        self.assertRaises(exceptions.Duplicate, self.client.create_tenant,
-                          tenant_name)
-
-    @attr(type='gate')
-    def test_create_tenant_by_unauthorized_user(self):
-        # Non-administrator user should not be authorized to create a tenant
-        tenant_name = rand_name('tenant-')
-        self.assertRaises(exceptions.Unauthorized,
-                          self.non_admin_client.create_tenant, tenant_name)
-
-    @attr(type='gate')
-    def test_create_tenant_request_without_token(self):
-        # Create tenant request without a token should not be authorized
-        tenant_name = rand_name('tenant-')
-        token = self.client.get_auth()
-        self.client.delete_token(token)
-        self.assertRaises(exceptions.Unauthorized, self.client.create_tenant,
-                          tenant_name)
-        self.client.clear_auth()
-
-    @attr(type='gate')
-    def test_create_tenant_with_empty_name(self):
-        # Tenant name should not be empty
-        self.assertRaises(exceptions.BadRequest, self.client.create_tenant,
-                          name='')
-
-    @attr(type='gate')
-    def test_create_tenants_name_length_over_64(self):
-        # Tenant name length should not be greater than 64 characters
-        tenant_name = 'a' * 65
-        self.assertRaises(exceptions.BadRequest, self.client.create_tenant,
-                          tenant_name)
-
-    @attr(type='gate')
     def test_tenant_update_name(self):
         # Update name attribute of a tenant
-        t_name1 = rand_name('tenant-')
+        t_name1 = data_utils.rand_name(name='tenant-')
         resp, body = self.client.create_tenant(t_name1)
+        self.assertEqual(200, resp.status)
         tenant = body
         self.data.tenants.append(tenant)
 
         t_id = body['id']
         resp1_name = body['name']
 
-        t_name2 = rand_name('tenant2-')
+        t_name2 = data_utils.rand_name(name='tenant2-')
         resp, body = self.client.update_tenant(t_id, name=t_name2)
         st2 = resp['status']
         resp2_name = body['name']
@@ -223,16 +140,17 @@
     @attr(type='gate')
     def test_tenant_update_desc(self):
         # Update description attribute of a tenant
-        t_name = rand_name('tenant-')
-        t_desc = rand_name('desc-')
+        t_name = data_utils.rand_name(name='tenant-')
+        t_desc = data_utils.rand_name(name='desc-')
         resp, body = self.client.create_tenant(t_name, description=t_desc)
+        self.assertEqual(200, resp.status)
         tenant = body
         self.data.tenants.append(tenant)
 
         t_id = body['id']
         resp1_desc = body['description']
 
-        t_desc2 = rand_name('desc2-')
+        t_desc2 = data_utils.rand_name(name='desc2-')
         resp, body = self.client.update_tenant(t_id, description=t_desc2)
         st2 = resp['status']
         resp2_desc = body['description']
@@ -252,9 +170,10 @@
     @attr(type='gate')
     def test_tenant_update_enable(self):
         # Update the enabled attribute of a tenant
-        t_name = rand_name('tenant-')
+        t_name = data_utils.rand_name(name='tenant-')
         t_en = False
         resp, body = self.client.create_tenant(t_name, enabled=t_en)
+        self.assertEqual(200, resp.status)
         tenant = body
         self.data.tenants.append(tenant)