diff --git a/tempest/api/compute/admin/test_aggregates_negative.py b/tempest/api/compute/admin/test_aggregates_negative.py
index 3c4e313..609eae6 100644
--- a/tempest/api/compute/admin/test_aggregates_negative.py
+++ b/tempest/api/compute/admin/test_aggregates_negative.py
@@ -40,6 +40,13 @@
                  for host in hosts_all if host['service'] == 'compute'])
         cls.host = hosts[0]
 
+    def _create_test_aggregate(self):
+        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
+        aggregate = (self.client.create_aggregate(name=aggregate_name)
+                     ['aggregate'])
+        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
+        return aggregate
+
     @test.attr(type=['negative'])
     @test.idempotent_id('86a1cb14-da37-4a70-b056-903fd56dfe29')
     def test_aggregate_create_as_user(self):
@@ -70,24 +77,16 @@
     @test.idempotent_id('9c23a291-b0b1-487b-b464-132e061151b3')
     def test_aggregate_create_with_existent_aggregate_name(self):
         # creating an aggregate with existent aggregate name is forbidden
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = self.client.create_aggregate(name=aggregate_name)
-        self.addCleanup(self.client.delete_aggregate,
-                        aggregate['aggregate']['id'])
-
+        aggregate = self._create_test_aggregate()
         self.assertRaises(lib_exc.Conflict,
                           self.client.create_aggregate,
-                          name=aggregate_name)
+                          name=aggregate['name'])
 
     @test.attr(type=['negative'])
     @test.idempotent_id('cd6de795-c15d-45f1-8d9e-813c6bb72a3d')
     def test_aggregate_delete_as_user(self):
         # Regular user is not allowed to delete an aggregate.
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
-
+        aggregate = self._create_test_aggregate()
         self.assertRaises(lib_exc.Forbidden,
                           self.user_client.delete_aggregate,
                           aggregate['id'])
@@ -103,11 +102,7 @@
     @test.idempotent_id('557cad12-34c9-4ff4-95f0-22f0dfbaf7dc')
     def test_aggregate_get_details_as_user(self):
         # Regular user is not allowed to get aggregate details.
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
-
+        aggregate = self._create_test_aggregate()
         self.assertRaises(lib_exc.Forbidden,
                           self.user_client.show_aggregate,
                           aggregate['id'])
@@ -136,12 +131,7 @@
             non_exist_host = data_utils.rand_name('nonexist_host')
             if non_exist_host not in hosts:
                 break
-
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
-
+        aggregate = self._create_test_aggregate()
         self.assertRaises(lib_exc.NotFound, self.client.add_host,
                           aggregate['id'], host=non_exist_host)
 
@@ -149,11 +139,7 @@
     @test.idempotent_id('7324c334-bd13-4c93-8521-5877322c3d51')
     def test_aggregate_add_host_as_user(self):
         # Regular user is not allowed to add a host to an aggregate.
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
-
+        aggregate = self._create_test_aggregate()
         self.assertRaises(lib_exc.Forbidden,
                           self.user_client.add_host,
                           aggregate['id'], host=self.host)
@@ -162,10 +148,7 @@
     @test.idempotent_id('19dd44e1-c435-4ee1-a402-88c4f90b5950')
     def test_aggregate_add_existent_host(self):
         self.useFixture(fixtures.LockFixture('availability_zone'))
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
+        aggregate = self._create_test_aggregate()
 
         self.client.add_host(aggregate['id'], host=self.host)
         self.addCleanup(self.client.remove_host, aggregate['id'],
@@ -179,10 +162,8 @@
     def test_aggregate_remove_host_as_user(self):
         # Regular user is not allowed to remove a host from an aggregate.
         self.useFixture(fixtures.LockFixture('availability_zone'))
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
+        aggregate = self._create_test_aggregate()
+
         self.client.add_host(aggregate['id'], host=self.host)
         self.addCleanup(self.client.remove_host, aggregate['id'],
                         host=self.host)
@@ -194,11 +175,8 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('95d6a6fa-8da9-4426-84d0-eec0329f2e4d')
     def test_aggregate_remove_nonexistent_host(self):
-        non_exist_host = data_utils.rand_name('nonexist_host')
-        aggregate_name = data_utils.rand_name(self.aggregate_name_prefix)
-        aggregate = (self.client.create_aggregate(name=aggregate_name)
-                     ['aggregate'])
-        self.addCleanup(self.client.delete_aggregate, aggregate['id'])
+        aggregate = self._create_test_aggregate()
 
+        non_exist_host = data_utils.rand_name('nonexist_host')
         self.assertRaises(lib_exc.NotFound, self.client.remove_host,
                           aggregate['id'], host=non_exist_host)
diff --git a/tempest/api/compute/admin/test_auto_allocate_network.py b/tempest/api/compute/admin/test_auto_allocate_network.py
index ee8ed14..4eb3376 100644
--- a/tempest/api/compute/admin/test_auto_allocate_network.py
+++ b/tempest/api/compute/admin/test_auto_allocate_network.py
@@ -66,7 +66,6 @@
     @classmethod
     def setup_clients(cls):
         super(AutoAllocateNetworkTest, cls).setup_clients()
-        cls.servers_client = cls.servers_client
         cls.networks_client = cls.os.networks_client
         cls.routers_client = cls.os.routers_client
         cls.subnets_client = cls.os.subnets_client
diff --git a/tempest/api/compute/admin/test_floating_ips_bulk.py b/tempest/api/compute/admin/test_floating_ips_bulk.py
index e207aed..a4695b0 100644
--- a/tempest/api/compute/admin/test_floating_ips_bulk.py
+++ b/tempest/api/compute/admin/test_floating_ips_bulk.py
@@ -17,6 +17,7 @@
 
 from tempest.api.compute import base
 from tempest import config
+from tempest.lib.common.utils import test_utils
 from tempest.lib import exceptions
 from tempest import test
 
@@ -54,12 +55,6 @@
                 raise exceptions.InvalidConfiguration(msg)
         return
 
-    def _delete_floating_ips_bulk(self, ip_range):
-        try:
-            self.client.delete_floating_ips_bulk(ip_range)
-        except Exception:
-            pass
-
     @test.idempotent_id('2c8f145f-8012-4cb8-ac7e-95a587f0e4ab')
     @test.services('network')
     def test_create_list_delete_floating_ips_bulk(self):
@@ -73,7 +68,8 @@
                                                      pool,
                                                      interface)
                 ['floating_ips_bulk_create'])
-        self.addCleanup(self._delete_floating_ips_bulk, self.ip_range)
+        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
+                        self.client.delete_floating_ips_bulk, self.ip_range)
         self.assertEqual(self.ip_range, body['ip_range'])
         ips_list = self.client.list_floating_ips_bulk()['floating_ip_info']
         self.assertNotEqual(0, len(ips_list))
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index b738e82..d8294f7 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -365,7 +365,7 @@
                     return address['addr']
             raise exceptions.ServerUnreachable(server_id=server['id'])
         else:
-            raise exceptions.InvalidConfiguration()
+            raise lib_exc.InvalidConfiguration()
 
     def setUp(self):
         super(BaseV2ComputeTest, self).setUp()
diff --git a/tempest/api/compute/images/test_image_metadata.py b/tempest/api/compute/images/test_image_metadata.py
index 999233d..26d4efe 100644
--- a/tempest/api/compute/images/test_image_metadata.py
+++ b/tempest/api/compute/images/test_image_metadata.py
@@ -20,7 +20,7 @@
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
-from tempest import exceptions
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
diff --git a/tempest/api/compute/images/test_images.py b/tempest/api/compute/images/test_images.py
index 154d717..a06f4a7 100644
--- a/tempest/api/compute/images/test_images.py
+++ b/tempest/api/compute/images/test_images.py
@@ -38,7 +38,6 @@
     def setup_clients(cls):
         super(ImagesTestJSON, cls).setup_clients()
         cls.client = cls.compute_images_client
-        cls.servers_client = cls.servers_client
 
     @test.idempotent_id('aa06b52b-2db5-4807-b218-9441f75d74e3')
     def test_delete_saving_image(self):
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 8db094d..7035401 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -39,7 +39,6 @@
     def setup_clients(cls):
         super(ImagesNegativeTestJSON, cls).setup_clients()
         cls.client = cls.compute_images_client
-        cls.servers_client = cls.servers_client
 
     @test.attr(type=['negative'])
     @test.idempotent_id('6cd5a89d-5b47-46a7-93bc-3916f0d84973')
diff --git a/tempest/api/network/admin/test_routers_dvr.py b/tempest/api/network/admin/test_routers_dvr.py
index 66feba8..aaac921 100644
--- a/tempest/api/network/admin/test_routers_dvr.py
+++ b/tempest/api/network/admin/test_routers_dvr.py
@@ -98,15 +98,22 @@
         attribute will be set to True
         """
         name = data_utils.rand_name('router')
+        tenant_id = self.routers_client.tenant_id
         # router needs to be in admin state down in order to be upgraded to DVR
         # l3ha routers are not upgradable to dvr, make it explicitly non ha
         router = self.admin_routers_client.create_router(name=name,
                                                          distributed=False,
                                                          admin_state_up=False,
-                                                         ha=False)
+                                                         ha=False,
+                                                         tenant_id=tenant_id)
+        router_id = router['router']['id']
         self.addCleanup(self.admin_routers_client.delete_router,
-                        router['router']['id'])
+                        router_id)
         self.assertFalse(router['router']['distributed'])
         router = self.admin_routers_client.update_router(
-            router['router']['id'], distributed=True)
+            router_id, distributed=True)
         self.assertTrue(router['router']['distributed'])
+        show_body = self.admin_routers_client.show_router(router_id)
+        self.assertTrue(show_body['router']['distributed'])
+        show_body = self.routers_client.show_router(router_id)
+        self.assertNotIn('distributed', show_body['router'])
diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index 6b0c20f..d2056c4 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -27,39 +27,11 @@
 CONF = config.CONF
 
 
-class NetworksTest(base.BaseNetworkTest):
-    """Tests the following operations in the Neutron API:
-
-        create a network for a project
-        list project's networks
-        show a project network details
-        create a subnet for a project
-        list project's subnets
-        show a project subnet details
-        network update
-        subnet update
-        delete a network also deletes its subnets
-        list external networks
-
-        All subnet tests are run once with ipv4 and once with ipv6.
-
-    v2.0 of the Neutron API is assumed. It is also assumed that the following
-    options are defined in the [network] section of etc/tempest.conf:
-
-        project_network_cidr with a block of cidr's from which smaller blocks
-        can be allocated for project ipv4 subnets
-
-        project_network_v6_cidr is the equivalent for ipv6 subnets
-
-        project_network_mask_bits with the mask bits to be used to partition
-        the block defined by project_network_cidr
-
-        project_network_v6_mask_bits is the equivalent for ipv6 subnets
-    """
+class BaseNetworkTestResources(base.BaseNetworkTest):
 
     @classmethod
     def resource_setup(cls):
-        super(NetworksTest, cls).resource_setup()
+        super(BaseNetworkTestResources, cls).resource_setup()
         cls.network = cls.create_network()
         cls.name = cls.network['name']
         cls.subnet = cls._create_subnet_with_last_subnet_block(cls.network,
@@ -171,6 +143,37 @@
         self.networks.pop()
         self.subnets.pop()
 
+
+class NetworksTest(BaseNetworkTestResources):
+    """Tests the following operations in the Neutron API:
+
+        create a network for a project
+        list project's networks
+        show a project network details
+        create a subnet for a project
+        list project's subnets
+        show a project subnet details
+        network update
+        subnet update
+        delete a network also deletes its subnets
+        list external networks
+
+        All subnet tests are run once with ipv4 and once with ipv6.
+
+    v2.0 of the Neutron API is assumed. It is also assumed that the following
+    options are defined in the [network] section of etc/tempest.conf:
+
+        project_network_cidr with a block of cidr's from which smaller blocks
+        can be allocated for project ipv4 subnets
+
+        project_network_v6_cidr is the equivalent for ipv6 subnets
+
+        project_network_mask_bits with the mask bits to be used to partition
+        the block defined by project_network_cidr
+
+        project_network_v6_mask_bits is the equivalent for ipv6 subnets
+    """
+
     @test.attr(type='smoke')
     @test.idempotent_id('0e269138-0da6-4efc-a46d-578161e7b221')
     def test_create_update_delete_network_subnet(self):
@@ -559,7 +562,9 @@
                              'Subnet are not in the same network')
 
 
-class NetworksIpV6TestAttrs(NetworksIpV6Test):
+class NetworksIpV6TestAttrs(BaseNetworkTestResources):
+
+    _ip_version = 6
 
     @classmethod
     def skip_checks(cls):
diff --git a/tempest/api/network/test_routers.py b/tempest/api/network/test_routers.py
index de2e71f..ed6a302 100644
--- a/tempest/api/network/test_routers.py
+++ b/tempest/api/network/test_routers.py
@@ -390,35 +390,3 @@
 
 class RoutersIpV6Test(RoutersTest):
     _ip_version = 6
-
-
-class DvrRoutersTest(base.BaseRouterTest):
-
-    @classmethod
-    def skip_checks(cls):
-        super(DvrRoutersTest, cls).skip_checks()
-        if not test.is_extension_enabled('dvr', 'network'):
-            msg = "DVR extension not enabled."
-            raise cls.skipException(msg)
-
-    @test.idempotent_id('141297aa-3424-455d-aa8d-f2d95731e00a')
-    def test_create_distributed_router(self):
-        name = data_utils.rand_name('router')
-        create_body = self.admin_routers_client.create_router(
-            name=name, distributed=True)
-        self.addCleanup(self._delete_router,
-                        create_body['router']['id'],
-                        self.admin_routers_client)
-        self.assertTrue(create_body['router']['distributed'])
-
-    @test.idempotent_id('644d7a4a-01a1-4b68-bb8d-0c0042cb1729')
-    def test_convert_centralized_router(self):
-        router = self._create_router()
-        self.assertNotIn('distributed', router)
-        update_body = self.admin_routers_client.update_router(router['id'],
-                                                              distributed=True)
-        self.assertTrue(update_body['router']['distributed'])
-        show_body = self.admin_routers_client.show_router(router['id'])
-        self.assertTrue(show_body['router']['distributed'])
-        show_body = self.routers_client.show_router(router['id'])
-        self.assertNotIn('distributed', show_body['router'])
diff --git a/tempest/api/object_storage/test_account_bulk.py b/tempest/api/object_storage/test_account_bulk.py
index 7292ee9..a75ed98 100644
--- a/tempest/api/object_storage/test_account_bulk.py
+++ b/tempest/api/object_storage/test_account_bulk.py
@@ -66,7 +66,7 @@
         self.assertNotIn(container_name, body)
 
     @test.idempotent_id('a407de51-1983-47cc-9f14-47c2b059413c')
-    @test.requires_ext(extension='bulk', service='object')
+    @test.requires_ext(extension='bulk_upload', service='object')
     def test_extract_archive(self):
         # Test bulk operation of file upload with an archived file
         filepath, container_name, object_name = self._create_archive()
@@ -102,7 +102,7 @@
         self.assertIn(object_name, [c['name'] for c in contents_list])
 
     @test.idempotent_id('c075e682-0d2a-43b2-808d-4116200d736d')
-    @test.requires_ext(extension='bulk', service='object')
+    @test.requires_ext(extension='bulk_delete', service='object')
     def test_bulk_delete(self):
         # Test bulk operation of deleting multiple files
         filepath, container_name, object_name = self._create_archive()
@@ -129,7 +129,7 @@
         self._check_contents_deleted(container_name)
 
     @test.idempotent_id('dbea2bcb-efbb-4674-ac8a-a5a0e33d1d79')
-    @test.requires_ext(extension='bulk', service='object')
+    @test.requires_ext(extension='bulk_delete', service='object')
     def test_bulk_delete_by_POST(self):
         # Test bulk operation of deleting multiple files
         filepath, container_name, object_name = self._create_archive()
diff --git a/tempest/api/volume/v2/test_volumes_list.py b/tempest/api/volume/v2/test_volumes_list.py
index 7717027..03996af 100644
--- a/tempest/api/volume/v2/test_volumes_list.py
+++ b/tempest/api/volume/v2/test_volumes_list.py
@@ -73,9 +73,13 @@
             val0 = fetched_volume[0][sort_key]
             val1 = fetched_volume[1][sort_key]
             if sort_dir == 'asc':
-                self.assertLess(val0, val1, "%s < %s" % (val0, val1))
+                self.assertLess(val0, val1,
+                                "list is not in asc order with sort_key: %s."
+                                " %s" % (sort_key, fetched_volume))
             elif sort_dir == 'desc':
-                self.assertGreater(val0, val1, "%s > %s" % (val0, val1))
+                self.assertGreater(val0, val1,
+                                   "list is not in desc order with sort_key: "
+                                   "%s. %s" % (sort_key, fetched_volume))
 
         _list_details_with_multiple_params()
         _list_details_with_multiple_params(sort_dir='desc')
diff --git a/tempest/lib/services/compute/tenant_usages_client.py b/tempest/lib/services/compute/tenant_usages_client.py
index 5a748c7..d0eb1c9 100644
--- a/tempest/lib/services/compute/tenant_usages_client.py
+++ b/tempest/lib/services/compute/tenant_usages_client.py
@@ -24,6 +24,12 @@
 class TenantUsagesClient(base_compute_client.BaseComputeClient):
 
     def list_tenant_usages(self, **params):
+        """List Tenant Usage For All Tenants.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/compute/#list-tenant-usage-for-all-tenants
+        """
         url = 'os-simple-tenant-usage'
         if params:
             url += '?%s' % urllib.urlencode(params)
@@ -34,6 +40,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def show_tenant_usage(self, tenant_id, **params):
+        """Show Usage Details For Tenant.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/compute/#show-usage-details-for-tenant
+        """
         url = 'os-simple-tenant-usage/%s' % tenant_id
         if params:
             url += '?%s' % urllib.urlencode(params)
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 9770f20..8b86267 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -141,6 +141,9 @@
         if clients is None:
             clients = self.manager
 
+        if name is None:
+            name = data_utils.rand_name(self.__class__.__name__ + "-server")
+
         vnic_type = CONF.network.port_vnic_type
 
         # If vnic_type is configured create port for
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index 60b030d..0605902 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -35,6 +35,12 @@
     """
 
     @classmethod
+    def setup_clients(cls):
+        super(TestNetworkAdvancedServerOps, cls).setup_clients()
+        cls.admin_servers_client = cls.os_adm.servers_client
+        cls.admin_hosts_client = cls.os_adm.hosts_client
+
+    @classmethod
     def skip_checks(cls):
         super(TestNetworkAdvancedServerOps, cls).skip_checks()
         if not (CONF.network.project_networks_reachable
@@ -94,6 +100,10 @@
                                        'ACTIVE')
         self._check_network_connectivity(server, keypair, floating_ip)
 
+    def _get_host_for_server(self, server_id):
+        body = self.admin_servers_client.show_server(server_id)['server']
+        return body['OS-EXT-SRV-ATTR:host']
+
     @test.idempotent_id('61f1aa9a-1573-410e-9054-afa557cab021')
     @test.services('compute', 'network')
     def test_server_connectivity_stop_start(self):
@@ -184,3 +194,29 @@
         self.servers_client.confirm_resize_server(server['id'])
         self._wait_server_status_and_check_network_connectivity(
             server, keypair, floating_ip)
+
+    @test.idempotent_id('a4858f6c-401e-4155-9a49-d5cd053d1a2f')
+    @testtools.skipUnless(CONF.compute_feature_enabled.cold_migration,
+                          'Cold migration is not available.')
+    @test.services('compute', 'network')
+    def test_server_connectivity_cold_migration(self):
+        if CONF.compute.min_compute_nodes < 2:
+            msg = "Less than 2 compute nodes, skipping multinode tests."
+            raise self.skipException(msg)
+
+        keypair = self.create_keypair()
+        server = self._setup_server(keypair)
+        floating_ip = self._setup_network(server, keypair)
+        src_host = self._get_host_for_server(server['id'])
+        self._wait_server_status_and_check_network_connectivity(
+            server, keypair, floating_ip)
+
+        self.admin_servers_client.migrate_server(server['id'])
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'VERIFY_RESIZE')
+        self.servers_client.confirm_resize_server(server['id'])
+        self._wait_server_status_and_check_network_connectivity(
+            server, keypair, floating_ip)
+        dst_host = self._get_host_for_server(server['id'])
+
+        self.assertNotEqual(src_host, dst_host)
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index e177cb0..af313a5 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -19,7 +19,6 @@
 from oslo_log import log as logging
 import testtools
 
-from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
 from tempest.lib.common.utils import test_utils
@@ -116,8 +115,7 @@
             self.port_id = self._create_port(self.network['id'])['id']
             self.ports.append({'port': self.port_id})
 
-        name = data_utils.rand_name('server-smoke')
-        server = self._create_server(name, self.network, self.port_id)
+        server = self._create_server(self.network, self.port_id)
         self._check_tenant_network_connectivity()
 
         floating_ip = self.create_floating_ip(server)
@@ -151,7 +149,7 @@
             self.assertIn(self.router['id'],
                           seen_router_ids)
 
-    def _create_server(self, name, network, port_id=None):
+    def _create_server(self, network, port_id=None):
         keypair = self.create_keypair()
         self.keypairs[keypair['name']] = keypair
         security_groups = [{'name': self.security_group['name']}]
@@ -160,7 +158,6 @@
             network['port'] = port_id
 
         server = self.create_server(
-            name=name,
             networks=[network],
             key_name=keypair['name'],
             security_groups=security_groups,
@@ -220,9 +217,8 @@
 
     def _reassociate_floating_ips(self):
         floating_ip, server = self.floating_ip_tuple
-        name = data_utils.rand_name('new_server-smoke')
         # create a new server for the floating ip
-        server = self._create_server(name, self.network)
+        server = self._create_server(self.network)
         self._associate_floating_ip(floating_ip, server)
         self.floating_ip_tuple = Floating_IP_tuple(
             floating_ip, server)
@@ -459,8 +455,7 @@
         self._check_network_internal_connectivity(network=self.network)
         self._check_network_external_connectivity()
         self._create_new_network(create_gateway=True)
-        name = data_utils.rand_name('server-smoke')
-        self._create_server(name, self.new_net)
+        self._create_server(self.new_net)
         self._check_network_internal_connectivity(network=self.new_net,
                                                   should_connect=False)
         router_id = self.router['id']
@@ -688,8 +683,7 @@
 
         # Boot another server with the same port to make sure nothing was
         # left around that could cause issues.
-        name = data_utils.rand_name('reuse-port')
-        server = self._create_server(name, self.network, port['id'])
+        server = self._create_server(self.network, port['id'])
         port_list = self._list_ports(device_id=server['id'],
                                      network_id=self.network['id'])
         self.assertEqual(1, len(port_list),
@@ -813,8 +807,7 @@
         ssh_client = self.get_remote_client(fip['floating_ip_address'],
                                             private_key=private_key)
         spoof_nic = ssh_client.get_nic_name_by_mac(spoof_port["mac_address"])
-        name = data_utils.rand_name('peer')
-        peer = self._create_server(name, self.new_net)
+        peer = self._create_server(self.new_net)
         peer_address = peer['addresses'][self.new_net['name']][0]['addr']
         self._check_remote_connectivity(ssh_client, dest=peer_address,
                                         nic=spoof_nic, should_succeed=True)
diff --git a/tempest/tests/common/test_custom_matchers.py b/tempest/tests/common/test_custom_matchers.py
index 07867fc..1053d86 100644
--- a/tempest/tests/common/test_custom_matchers.py
+++ b/tempest/tests/common/test_custom_matchers.py
@@ -25,11 +25,11 @@
         matches = self.matches_matches
         mismatches = self.matches_mismatches
         for candidate in matches:
-            self.assertEqual(None, matcher.match(candidate))
+            self.assertIsNone(matcher.match(candidate))
         for candidate in mismatches:
             mismatch = matcher.match(candidate)
-            self.assertNotEqual(None, mismatch)
-            self.assertNotEqual(None, getattr(mismatch, 'describe', None))
+            self.assertIsNotNone(mismatch)
+            self.assertIsNotNone(getattr(mismatch, 'describe', None))
 
     def test__str__(self):
         # [(expected, object to __str__)].
diff --git a/test-requirements.txt b/test-requirements.txt
index 9e3165c..3260915 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-hacking<0.12,>=0.11.0 # Apache-2.0
+hacking>=0.12.0,<0.13  # Apache-2.0
 # needed for doc build
 sphinx!=1.3b1,<1.4,>=1.2.1 # BSD
 oslosphinx>=4.7.0 # Apache-2.0