diff --git a/HACKING.rst b/HACKING.rst
index b82f8c9..4095c4b 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -20,6 +20,7 @@
 - [T110] Check that service client names of GET should be consistent
 - [T111] Check that service client names of DELETE should be consistent
 - [T112] Check that tempest.lib should not import local tempest code
+- [T113] Check that tests use data_utils.rand_uuid() instead of uuid.uuid4()
 - [N322] Method's default argument shouldn't be mutable
 
 Test Data/Configuration
diff --git a/README.rst b/README.rst
index 7da83cd..650a1ed 100644
--- a/README.rst
+++ b/README.rst
@@ -58,7 +58,7 @@
 #. You first need to install Tempest. This is done with pip after you check out
    the Tempest repo::
 
-    $ git clone https://github.com/openstack/tempest/
+    $ git clone http://git.openstack.org/openstack/tempest
     $ pip install tempest/
 
    This can be done within a venv, but the assumption for this guide is that
@@ -71,14 +71,14 @@
    it's recommended that you copy or rename tempest.conf.sample to tempest.conf
    and make those changes to that file in /etc/tempest
 
-#. Setup a local working Tempest dir. This is done using the tempest init
+#. Setup a local working Tempest dir. This is done by using the tempest init
    command::
 
-    tempest init cloud-01
+    $ tempest init cloud-01
 
    works the same as::
 
-    mkdir cloud-01 && cd cloud-01 && tempest init
+    $ mkdir cloud-01 && cd cloud-01 && tempest init
 
    This will create a new directory for running a single Tempest configuration.
    If you'd like to run Tempest against multiple OpenStack deployments the idea
diff --git a/requirements.txt b/requirements.txt
index 3913f8f..79ae42e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,7 +21,7 @@
 fixtures<2.0,>=1.3.1 # Apache-2.0/BSD
 testscenarios>=0.4 # Apache-2.0/BSD
 PyYAML>=3.1.0 # MIT
-stevedore>=1.5.0 # Apache-2.0
+stevedore>=1.9.0 # Apache-2.0
 PrettyTable<0.8,>=0.7 # BSD
 os-testr>=0.4.1 # Apache-2.0
 urllib3>=1.8.3 # MIT
diff --git a/tempest/api/baremetal/admin/test_ports_negative.py b/tempest/api/baremetal/admin/test_ports_negative.py
index 8f04db9..5e3a33f 100644
--- a/tempest/api/baremetal/admin/test_ports_negative.py
+++ b/tempest/api/baremetal/admin/test_ports_negative.py
@@ -37,7 +37,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('30277ee8-0c60-4f1d-b125-0e51c2f43369')
     def test_create_port_nonexsistent_node_id(self):
-        node_id = str(data_utils.rand_uuid())
+        node_id = data_utils.rand_uuid()
         address = data_utils.rand_mac_address()
         self.assertRaises(lib_exc.BadRequest, self.create_port,
                           node_id=node_id, address=address)
diff --git a/tempest/api/compute/admin/test_flavors.py b/tempest/api/compute/admin/test_flavors.py
index 96dedcf..95e7ef1 100644
--- a/tempest/api/compute/admin/test_flavors.py
+++ b/tempest/api/compute/admin/test_flavors.py
@@ -91,7 +91,7 @@
 
     @test.idempotent_id('94c9bb4e-2c2a-4f3c-bb1f-5f0daf918e6d')
     def test_create_flavor_with_uuid_id(self):
-        flavor_id = str(uuid.uuid4())
+        flavor_id = data_utils.rand_uuid()
         new_flavor_id = self._create_flavor(flavor_id)
         self.assertEqual(new_flavor_id, flavor_id)
 
diff --git a/tempest/api/compute/admin/test_flavors_access_negative.py b/tempest/api/compute/admin/test_flavors_access_negative.py
index 3854973..1b7eb12 100644
--- a/tempest/api/compute/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/admin/test_flavors_access_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
@@ -145,4 +143,4 @@
         self.assertRaises(lib_exc.NotFound,
                           self.client.remove_flavor_access,
                           new_flavor['id'],
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
diff --git a/tempest/api/compute/admin/test_hypervisor_negative.py b/tempest/api/compute/admin/test_hypervisor_negative.py
index f313f76..9c6df7f 100644
--- a/tempest/api/compute/admin/test_hypervisor_negative.py
+++ b/tempest/api/compute/admin/test_hypervisor_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
@@ -38,7 +36,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('c136086a-0f67-4b2b-bc61-8482bd68989f')
     def test_show_nonexistent_hypervisor(self):
-        nonexistent_hypervisor_id = str(uuid.uuid4())
+        nonexistent_hypervisor_id = data_utils.rand_uuid()
 
         self.assertRaises(
             lib_exc.NotFound,
@@ -70,7 +68,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('02463d69-0ace-4d33-a4a8-93d7883a2bba')
     def test_show_servers_with_nonexistent_hypervisor(self):
-        nonexistent_hypervisor_id = str(uuid.uuid4())
+        nonexistent_hypervisor_id = data_utils.rand_uuid()
 
         self.assertRaises(
             lib_exc.NotFound,
@@ -87,7 +85,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('f60aa680-9a3a-4c7d-90e1-fae3a4891303')
     def test_get_nonexistent_hypervisor_uptime(self):
-        nonexistent_hypervisor_id = str(uuid.uuid4())
+        nonexistent_hypervisor_id = data_utils.rand_uuid()
 
         self.assertRaises(
             lib_exc.NotFound,
diff --git a/tempest/api/compute/admin/test_migrations.py b/tempest/api/compute/admin/test_migrations.py
index f81d665..6113c04 100644
--- a/tempest/api/compute/admin/test_migrations.py
+++ b/tempest/api/compute/admin/test_migrations.py
@@ -15,8 +15,10 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
+from tempest.lib import exceptions
 from tempest import test
 
 CONF = config.CONF
@@ -28,6 +30,7 @@
     def setup_clients(cls):
         super(MigrationsAdminTest, cls).setup_clients()
         cls.client = cls.os_adm.migrations_client
+        cls.flavors_admin_client = cls.os_adm.flavors_client
 
     @test.idempotent_id('75c0b83d-72a0-4cf8-a153-631e83e7d53f')
     def test_list_migrations(self):
@@ -53,3 +56,50 @@
 
         instance_uuids = [x['instance_uuid'] for x in body]
         self.assertIn(server_id, instance_uuids)
+
+    def _flavor_clean_up(self, flavor_id):
+        try:
+            self.flavors_admin_client.delete_flavor(flavor_id)
+            self.flavors_admin_client.wait_for_resource_deletion(flavor_id)
+        except exceptions.NotFound:
+            pass
+
+    @test.idempotent_id('33f1fec3-ba18-4470-8e4e-1d888e7c3593')
+    @testtools.skipUnless(CONF.compute_feature_enabled.resize,
+                          'Resize not available.')
+    def test_resize_server_revert_deleted_flavor(self):
+        # Tests that we can revert the resize on an instance whose original
+        # flavor has been deleted.
+
+        # First we have to create a flavor that we can delete so make a copy
+        # of the normal flavor from which we'd create a server.
+        flavor = self.flavors_admin_client.show_flavor(
+            self.flavor_ref)['flavor']
+        flavor = self.flavors_admin_client.create_flavor(
+            name=data_utils.rand_name('test_resize_flavor_'),
+            ram=flavor['ram'],
+            disk=flavor['disk'],
+            vcpus=flavor['vcpus']
+        )['flavor']
+        self.addCleanup(self._flavor_clean_up, flavor['id'])
+
+        # Now boot a server with the copied flavor.
+        server = self.create_test_server(
+            wait_until='ACTIVE', flavor=flavor['id'])
+
+        # Delete the flavor we used to boot the instance.
+        self._flavor_clean_up(flavor['id'])
+
+        # Now resize the server and wait for it to go into verify state.
+        self.servers_client.resize_server(server['id'], self.flavor_ref_alt)
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'VERIFY_RESIZE')
+
+        # Now revert the resize, it should be OK even though the original
+        # flavor used to boot the server was deleted.
+        self.servers_client.revert_resize_server(server['id'])
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
+
+        server = self.servers_client.show_server(server['id'])['server']
+        self.assertEqual(flavor['id'], server['flavor']['id'])
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index 07a7a30..7437c14 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -12,8 +12,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 import testtools
 
 from tempest.api.compute import base
@@ -147,7 +145,7 @@
         # migrate a non existent server
         self.assertRaises(lib_exc.NotFound,
                           self.client.migrate_server,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.idempotent_id('b0b17f83-d14e-4fc4-8f31-bcc9f3cfa629')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
index 105c4e3..f71f046 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute.floating_ips import base
 from tempest.common.utils import data_utils
 from tempest import config
@@ -47,7 +45,7 @@
         while True:
             cls.non_exist_id = data_utils.rand_int_id(start=999)
             if CONF.service_available.neutron:
-                cls.non_exist_id = str(uuid.uuid4())
+                cls.non_exist_id = data_utils.rand_uuid()
             if cls.non_exist_id not in cls.floating_ip_ids:
                 break
 
diff --git a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
index c6c7347..ea56ae9 100644
--- a/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
+++ b/tempest/api/compute/floating_ips/test_list_floating_ips_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import config
@@ -39,7 +37,7 @@
         # of non-existent floating IP
         # Creating a non-existent floatingIP id
         if CONF.service_available.neutron:
-            non_exist_id = str(uuid.uuid4())
+            non_exist_id = data_utils.rand_uuid()
         else:
             non_exist_id = data_utils.rand_int_id(start=999)
         self.assertRaises(lib_exc.NotFound,
diff --git a/tempest/api/compute/servers/test_attach_interfaces.py b/tempest/api/compute/servers/test_attach_interfaces.py
index 4fb4e9a..8201363 100644
--- a/tempest/api/compute/servers/test_attach_interfaces.py
+++ b/tempest/api/compute/servers/test_attach_interfaces.py
@@ -13,6 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import netaddr
 import time
 
 from tempest.api.compute import base
@@ -44,6 +45,8 @@
     def setup_clients(cls):
         super(AttachInterfacesTestJSON, cls).setup_clients()
         cls.client = cls.os.interfaces_client
+        cls.networks_client = cls.os.networks_client
+        cls.subnets_client = cls.os.subnets_client
         cls.ports_client = cls.os.ports_client
 
     def wait_for_interface_status(self, server, port_id, status):
@@ -120,6 +123,22 @@
         self._check_interface(iface, port_id=port_id)
         return iface
 
+    def _test_create_interface_by_fixed_ips(self, server, ifs):
+        network_id = ifs[0]['net_id']
+        ip_list = [
+            ifs[n]['fixed_ips'][0]['ip_address'] for n in range(0, len(ifs))]
+        ip = str(netaddr.IPAddress(sorted(ip_list)[-1]) + 1)
+
+        fixed_ips = [{'ip_address': ip}]
+        iface = self.client.create_interface(
+            server['id'], net_id=network_id,
+            fixed_ips=fixed_ips)['interfaceAttachment']
+        self.addCleanup(self.ports_client.delete_port, iface['port_id'])
+        iface = self.wait_for_interface_status(
+            server['id'], iface['port_id'], 'ACTIVE')
+        self._check_interface(iface, fixed_ip=ip)
+        return iface
+
     def _test_show_interface(self, server, ifs):
         iface = ifs[0]
         _iface = self.client.show_interface(
@@ -182,6 +201,9 @@
         iface = self._test_create_interface_by_port_id(server, ifs)
         ifs.append(iface)
 
+        iface = self._test_create_interface_by_fixed_ips(server, ifs)
+        ifs.append(iface)
+
         _ifs = (self.client.list_interfaces(server['id'])
                 ['interfaceAttachments'])
         self._compare_iface_list(ifs, _ifs)
diff --git a/tempest/api/compute/servers/test_delete_server.py b/tempest/api/compute/servers/test_delete_server.py
index 6796bb5..079465d 100644
--- a/tempest/api/compute/servers/test_delete_server.py
+++ b/tempest/api/compute/servers/test_delete_server.py
@@ -16,6 +16,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import compute
 from tempest.common import waiters
 from tempest import config
 from tempest import test
@@ -84,16 +85,8 @@
     def test_delete_server_while_in_shelved_state(self):
         # Delete a server while it's VM state is Shelved
         server = self.create_test_server(wait_until='ACTIVE')
-        self.client.shelve_server(server['id'])
+        compute.shelve_server(self.client, server['id'])
 
-        offload_time = CONF.compute.shelved_offload_time
-        if offload_time >= 0:
-            waiters.wait_for_server_status(self.client, server['id'],
-                                           'SHELVED_OFFLOADED',
-                                           extra_timeout=offload_time)
-        else:
-            waiters.wait_for_server_status(self.client, server['id'],
-                                           'SHELVED')
         self.client.delete_server(server['id'])
         waiters.wait_for_server_termination(self.client, server['id'])
 
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 5b4417a..f3aa16a 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -19,6 +19,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import compute
 from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
 from tempest.common import waiters
@@ -440,20 +441,8 @@
     @testtools.skipUnless(CONF.compute_feature_enabled.shelve,
                           'Shelve is not available.')
     def test_shelve_unshelve_server(self):
-        self.client.shelve_server(self.server_id)
-
-        offload_time = CONF.compute.shelved_offload_time
-        if offload_time >= 0:
-            waiters.wait_for_server_status(self.client, self.server_id,
-                                           'SHELVED_OFFLOADED',
-                                           extra_timeout=offload_time)
-        else:
-            waiters.wait_for_server_status(self.client, self.server_id,
-                                           'SHELVED')
-
-            self.client.shelve_offload_server(self.server_id)
-            waiters.wait_for_server_status(self.client, self.server_id,
-                                           'SHELVED_OFFLOADED')
+        compute.shelve_server(self.client, self.server_id,
+                              force_shelve_offload=True)
 
         server = self.client.show_server(self.server_id)['server']
         image_name = server['name'] + '-shelved'
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 8f0e430..10ea31d 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -18,6 +18,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import compute
 from tempest.common.utils import data_utils
 from tempest.common import waiters
 from tempest import config
@@ -453,18 +454,7 @@
     @test.attr(type=['negative'])
     def test_shelve_shelved_server(self):
         # shelve a shelved server.
-        self.client.shelve_server(self.server_id)
-
-        offload_time = CONF.compute.shelved_offload_time
-        if offload_time >= 0:
-            waiters.wait_for_server_status(self.client,
-                                           self.server_id,
-                                           'SHELVED_OFFLOADED',
-                                           extra_timeout=offload_time)
-        else:
-            waiters.wait_for_server_status(self.client,
-                                           self.server_id,
-                                           'SHELVED')
+        compute.shelve_server(self.client, self.server_id)
 
         server = self.client.show_server(self.server_id)['server']
         image_name = server['name'] + '-shelved'
diff --git a/tempest/api/compute/servers/test_virtual_interfaces_negative.py b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
index e038b82..912b0a1 100644
--- a/tempest/api/compute/servers/test_virtual_interfaces_negative.py
+++ b/tempest/api/compute/servers/test_virtual_interfaces_negative.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute import base
+from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
@@ -39,7 +38,7 @@
     def test_list_virtual_interfaces_invalid_server_id(self):
         # Negative test: Should not be able to GET virtual interfaces
         # for an invalid server_id
-        invalid_server_id = str(uuid.uuid4())
+        invalid_server_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound,
                           self.client.list_virtual_interfaces,
                           invalid_server_id)
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index e9c8e30..37423a3 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -16,6 +16,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import compute
 from tempest.common.utils.linux import remote_client
 from tempest.common import waiters
 from tempest import config
@@ -25,6 +26,7 @@
 
 
 class AttachVolumeTestJSON(base.BaseV2ComputeTest):
+    max_microversion = '2.19'
 
     def __init__(self, *args, **kwargs):
         super(AttachVolumeTestJSON, self).__init__(*args, **kwargs)
@@ -62,7 +64,7 @@
             self.volumes_client.wait_for_resource_deletion(self.volume['id'])
             self.volume = None
 
-    def _create_and_attach(self):
+    def _create_and_attach(self, shelve_server=False):
         # Start a server and wait for it to become ready
         self.admin_pass = self.image_ssh_password
         self.server = self.create_test_server(
@@ -81,6 +83,9 @@
         waiters.wait_for_volume_status(self.volumes_client,
                                        self.volume['id'], 'available')
 
+        if shelve_server:
+            compute.shelve_server(self.servers_client, self.server['id'])
+
         # Attach the volume to the server
         self.attachment = self.servers_client.attach_volume(
             self.server['id'],
@@ -152,3 +157,66 @@
         self.assertEqual(self.server['id'], body['serverId'])
         self.assertEqual(self.volume['id'], body['volumeId'])
         self.assertEqual(self.attachment['id'], body['id'])
+
+
+class AttachVolumeShelveTestJSON(AttachVolumeTestJSON):
+    """Testing volume with shelved instance.
+
+    This test checks the attaching and detaching volumes from
+    a shelved or shelved ofload instance.
+    """
+
+    min_microversion = '2.20'
+    max_microversion = 'latest'
+
+    def _unshelve_server_and_check_volumes(self, number_of_partition):
+        # Unshelve the instance and check that there are expected volumes
+        self.servers_client.unshelve_server(self.server['id'])
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server['id'],
+                                       'ACTIVE')
+        linux_client = remote_client.RemoteClient(
+            self.get_server_ip(self.server['id']),
+            self.image_ssh_user,
+            self.admin_pass,
+            self.validation_resources['keypair']['private_key'])
+
+        command = 'grep vd /proc/partitions | wc -l'
+        nb_partitions = linux_client.exec_command(command).strip()
+        self.assertEqual(number_of_partition, nb_partitions)
+
+    @test.idempotent_id('13a940b6-3474-4c3c-b03f-29b89112bfee')
+    @testtools.skipUnless(CONF.compute_feature_enabled.shelve,
+                          'Shelve is not available.')
+    @testtools.skipUnless(CONF.validation.run_validation,
+                          'SSH required for this test')
+    def test_attach_volume_shelved_or_offload_server(self):
+        self._create_and_attach(shelve_server=True)
+
+        # Unshelve the instance and check that there are two volumes
+        self._unshelve_server_and_check_volumes('2')
+
+        # Get Volume attachment of the server
+        volume_attachment = self.servers_client.show_volume_attachment(
+            self.server['id'],
+            self.attachment['id'])['volumeAttachment']
+        self.assertEqual(self.server['id'], volume_attachment['serverId'])
+        self.assertEqual(self.attachment['id'], volume_attachment['id'])
+        # Check the mountpoint is not None after unshelve server even in
+        # case of shelved_offloaded.
+        self.assertIsNotNone(volume_attachment['device'])
+
+    @test.idempotent_id('b54e86dd-a070-49c4-9c07-59ae6dae15aa')
+    @testtools.skipUnless(CONF.compute_feature_enabled.shelve,
+                          'Shelve is not available.')
+    @testtools.skipUnless(CONF.validation.run_validation,
+                          'SSH required for this test')
+    def test_detach_volume_shelved_or_offload_server(self):
+        self._create_and_attach(shelve_server=True)
+
+        # Detach the volume
+        self._detach(self.server['id'], self.volume['id'])
+        self.attachment = None
+
+        # Unshelve the instance and check that there is only one volume
+        self._unshelve_server_and_check_volumes('1')
diff --git a/tempest/api/compute/volumes/test_volumes_negative.py b/tempest/api/compute/volumes/test_volumes_negative.py
index d1c48c4..92f5ea8 100644
--- a/tempest/api/compute/volumes/test_volumes_negative.py
+++ b/tempest/api/compute/volumes/test_volumes_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest import config
@@ -45,7 +43,7 @@
         # Creating a nonexistent volume id
         # Trying to GET a non existent volume
         self.assertRaises(lib_exc.NotFound, self.client.show_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('54a34226-d910-4b00-9ef8-8683e6c55846')
@@ -54,7 +52,7 @@
         # Creating nonexistent volume id
         # Trying to DELETE a non existent volume
         self.assertRaises(lib_exc.NotFound, self.client.delete_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('5125ae14-152b-40a7-b3c5-eae15e9022ef')
diff --git a/tempest/api/identity/admin/v2/test_roles_negative.py b/tempest/api/identity/admin/v2/test_roles_negative.py
index 14f4306..fd56285 100644
--- a/tempest/api/identity/admin/v2/test_roles_negative.py
+++ b/tempest/api/identity/admin/v2/test_roles_negative.py
@@ -13,8 +13,6 @@
 #    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.lib import exceptions as lib_exc
@@ -115,7 +113,7 @@
     @test.idempotent_id('38373691-8551-453a-b074-4260ad8298ef')
     def test_delete_role_non_existent(self):
         # Attempt to delete a non existent role should fail
-        non_existent_role = str(uuid.uuid4().hex)
+        non_existent_role = data_utils.rand_uuid_hex()
         self.assertRaises(lib_exc.NotFound, self.roles_client.delete_role,
                           non_existent_role)
 
@@ -146,7 +144,7 @@
     def test_assign_user_role_for_non_existent_role(self):
         # Attempt to assign a non existent role to user should fail
         (user, tenant, role) = self._get_role_params()
-        non_existent_role = str(uuid.uuid4().hex)
+        non_existent_role = data_utils.rand_uuid_hex()
         self.assertRaises(lib_exc.NotFound, self.roles_client.assign_user_role,
                           tenant['id'], user['id'], non_existent_role)
 
@@ -155,7 +153,7 @@
     def test_assign_user_role_for_non_existent_tenant(self):
         # Attempt to assign a role on a non existent tenant should fail
         (user, tenant, role) = self._get_role_params()
-        non_existent_tenant = str(uuid.uuid4().hex)
+        non_existent_tenant = data_utils.rand_uuid_hex()
         self.assertRaises(lib_exc.NotFound, self.roles_client.assign_user_role,
                           non_existent_tenant, user['id'], role['id'])
 
@@ -205,7 +203,7 @@
         self.roles_client.assign_user_role(tenant['id'],
                                            user['id'],
                                            role['id'])
-        non_existent_role = str(uuid.uuid4().hex)
+        non_existent_role = data_utils.rand_uuid_hex()
         self.assertRaises(lib_exc.NotFound, self.roles_client.delete_user_role,
                           tenant['id'], user['id'], non_existent_role)
 
@@ -217,7 +215,7 @@
         self.roles_client.assign_user_role(tenant['id'],
                                            user['id'],
                                            role['id'])
-        non_existent_tenant = str(uuid.uuid4().hex)
+        non_existent_tenant = data_utils.rand_uuid_hex()
         self.assertRaises(lib_exc.NotFound, self.roles_client.delete_user_role,
                           non_existent_tenant, user['id'], role['id'])
 
diff --git a/tempest/api/identity/admin/v2/test_tenant_negative.py b/tempest/api/identity/admin/v2/test_tenant_negative.py
index a4c1afc..5169dae 100644
--- a/tempest/api/identity/admin/v2/test_tenant_negative.py
+++ b/tempest/api/identity/admin/v2/test_tenant_negative.py
@@ -13,8 +13,6 @@
 #    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.lib import exceptions as lib_exc
@@ -70,7 +68,7 @@
     def test_delete_non_existent_tenant(self):
         # Attempt to delete a non existent tenant should fail
         self.assertRaises(lib_exc.NotFound, self.tenants_client.delete_tenant,
-                          str(uuid.uuid4().hex))
+                          data_utils.rand_uuid_hex())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('af16f44b-a849-46cb-9f13-a751c388f739')
@@ -130,7 +128,7 @@
     def test_update_non_existent_tenant(self):
         # Attempt to update a non existent tenant should fail
         self.assertRaises(lib_exc.NotFound, self.tenants_client.update_tenant,
-                          str(uuid.uuid4().hex))
+                          data_utils.rand_uuid_hex())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('41704dc5-c5f7-4f79-abfa-76e6fedc570b')
diff --git a/tempest/api/identity/admin/v2/test_users_negative.py b/tempest/api/identity/admin/v2/test_users_negative.py
index dee42b7..46ecba1 100644
--- a/tempest/api/identity/admin/v2/test_users_negative.py
+++ b/tempest/api/identity/admin/v2/test_users_negative.py
@@ -13,8 +13,6 @@
 #    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.lib import exceptions as lib_exc
@@ -108,7 +106,7 @@
     def test_update_user_for_non_existent_user(self):
         # Attempt to update a user non-existent user should fail
         user_name = data_utils.rand_name('user')
-        non_existent_id = str(uuid.uuid4())
+        non_existent_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.users_client.update_user,
                           non_existent_id, name=user_name)
 
diff --git a/tempest/api/image/v2/test_images_negative.py b/tempest/api/image/v2/test_images_negative.py
index fc74326..14de8fd 100644
--- a/tempest/api/image/v2/test_images_negative.py
+++ b/tempest/api/image/v2/test_images_negative.py
@@ -14,9 +14,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.image import base
+from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
@@ -38,7 +37,7 @@
     @test.idempotent_id('668743d5-08ad-4480-b2b8-15da34f81d9f')
     def test_get_non_existent_image(self):
         # get the non-existent image
-        non_existent_id = str(uuid.uuid4())
+        non_existent_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.client.show_image,
                           non_existent_id)
 
@@ -72,7 +71,7 @@
     @test.idempotent_id('6fe40f1c-57bd-4918-89cc-8500f850f3de')
     def test_delete_non_existing_image(self):
         # delete non-existent image
-        non_existent_image_id = str(uuid.uuid4())
+        non_existent_image_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.client.delete_image,
                           non_existent_image_id)
 
diff --git a/tempest/api/image/v2/test_images_tags_negative.py b/tempest/api/image/v2/test_images_tags_negative.py
index 1aa2d11..dd5650f 100644
--- a/tempest/api/image/v2/test_images_tags_negative.py
+++ b/tempest/api/image/v2/test_images_tags_negative.py
@@ -12,8 +12,6 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-import uuid
-
 from tempest.api.image import base
 from tempest.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
@@ -27,7 +25,7 @@
     def test_update_tags_for_non_existing_image(self):
         # Update tag with non existing image.
         tag = data_utils.rand_name('tag')
-        non_exist_image = str(uuid.uuid4())
+        non_exist_image = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.client.add_image_tag,
                           non_exist_image, tag)
 
diff --git a/tempest/api/network/test_security_groups_negative.py b/tempest/api/network/test_security_groups_negative.py
index 86d0b46..b9765c8 100644
--- a/tempest/api/network/test_security_groups_negative.py
+++ b/tempest/api/network/test_security_groups_negative.py
@@ -13,10 +13,9 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.network import base_security_groups as base
 from tempest import config
+from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
@@ -36,7 +35,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('424fd5c3-9ddc-486a-b45f-39bf0c820fc6')
     def test_show_non_existent_security_group(self):
-        non_exist_id = str(uuid.uuid4())
+        non_exist_id = data_utils.rand_uuid()
         self.assertRaises(
             lib_exc.NotFound, self.security_groups_client.show_security_group,
             non_exist_id)
@@ -44,7 +43,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('4c094c09-000b-4e41-8100-9617600c02a6')
     def test_show_non_existent_security_group_rule(self):
-        non_exist_id = str(uuid.uuid4())
+        non_exist_id = data_utils.rand_uuid()
         self.assertRaises(
             lib_exc.NotFound,
             self.security_group_rules_client.show_security_group_rule,
@@ -53,7 +52,7 @@
     @test.attr(type=['negative'])
     @test.idempotent_id('1f1bb89d-5664-4956-9fcd-83ee0fa603df')
     def test_delete_non_existent_security_group(self):
-        non_exist_id = str(uuid.uuid4())
+        non_exist_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound,
                           self.security_groups_client.delete_security_group,
                           non_exist_id
@@ -91,7 +90,7 @@
     @test.idempotent_id('4bf786fd-2f02-443c-9716-5b98e159a49a')
     def test_create_security_group_rule_with_non_existent_remote_groupid(self):
         group_create_body, _ = self._create_security_group()
-        non_exist_id = str(uuid.uuid4())
+        non_exist_id = data_utils.rand_uuid()
 
         # Create rule with non existent remote_group_id
         group_ids = ['bad_group_id', non_exist_id]
@@ -204,7 +203,7 @@
     @test.idempotent_id('be308db6-a7cf-4d5c-9baf-71bafd73f35e')
     def test_create_security_group_rule_with_non_existent_security_group(self):
         # Create security group rules with not existing security group.
-        non_existent_sg = str(uuid.uuid4())
+        non_existent_sg = data_utils.rand_uuid()
         self.assertRaises(
             lib_exc.NotFound,
             self.security_group_rules_client.create_security_group_rule,
diff --git a/tempest/api/telemetry/test_alarming_api_negative.py b/tempest/api/telemetry/test_alarming_api_negative.py
index 0701b54..3e34f8b 100644
--- a/tempest/api/telemetry/test_alarming_api_negative.py
+++ b/tempest/api/telemetry/test_alarming_api_negative.py
@@ -17,8 +17,6 @@
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
-import uuid
-
 
 class TelemetryAlarmingNegativeTest(base.BaseAlarmingTest):
     """Negative tests for show_alarm, update_alarm, show_alarm_history tests
@@ -33,7 +31,7 @@
     @test.idempotent_id('668743d5-08ad-4480-b2b8-15da34f81e7d')
     def test_get_non_existent_alarm(self):
         # get the non-existent alarm
-        non_existent_id = str(uuid.uuid4())
+        non_existent_id = data_utils.rand_uuid()
         self.assertRaises(lib_exc.NotFound, self.alarming_client.show_alarm,
                           non_existent_id)
 
diff --git a/tempest/api/volume/admin/test_multi_backend.py b/tempest/api/volume/admin/test_multi_backend.py
index f19717e..00acc7d 100644
--- a/tempest/api/volume/admin/test_multi_backend.py
+++ b/tempest/api/volume/admin/test_multi_backend.py
@@ -32,14 +32,9 @@
     @classmethod
     def resource_setup(cls):
         super(VolumeMultiBackendV2Test, cls).resource_setup()
-        # support 2 backends names, deprecated_for_removal.
-        # keep support 2 backend names, in case they are not empty
-        if CONF.volume.backend1_name and CONF.volume.backend2_name:
-            cls.backend_names = {CONF.volume.backend1_name,
-                                 CONF.volume.backend2_name}
-        else:
-            # read backend name from a list .
-            cls.backend_names = set(CONF.volume.backend_names)
+
+        # read backend name from a list .
+        cls.backend_names = set(CONF.volume.backend_names)
 
         cls.name_field = cls.special_fields['name_field']
         cls.volume_type_id_list = []
diff --git a/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py b/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
index 29ce2e7..f3e52e9 100644
--- a/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
+++ b/tempest/api/volume/admin/test_volume_types_extra_specs_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
@@ -53,7 +51,7 @@
         self.assertRaises(
             lib_exc.BadRequest,
             self.volume_types_client.update_volume_type_extra_specs,
-            self.volume_type['id'], str(uuid.uuid4()),
+            self.volume_type['id'], data_utils.rand_uuid(),
             extra_spec)
 
     @test.idempotent_id('9bf7a657-b011-4aec-866d-81c496fbe5c8')
@@ -84,7 +82,7 @@
         self.assertRaises(
             lib_exc.NotFound,
             self.volume_types_client.create_volume_type_extra_specs,
-            str(uuid.uuid4()), extra_specs)
+            data_utils.rand_uuid(), extra_specs)
 
     @test.idempotent_id('c821bdc8-43a4-4bf4-86c8-82f3858d5f7d')
     def test_create_none_body(self):
@@ -110,7 +108,7 @@
         self.assertRaises(
             lib_exc.NotFound,
             self.volume_types_client.delete_volume_type_extra_specs,
-            str(uuid.uuid4()), extra_specs.keys()[0])
+            data_utils.rand_uuid(), extra_specs.keys()[0])
 
     @test.idempotent_id('dee5cf0c-cdd6-4353-b70c-e847050d71fb')
     def test_list_nonexistent_volume_type_id(self):
@@ -118,7 +116,7 @@
         self.assertRaises(
             lib_exc.NotFound,
             self.volume_types_client.list_volume_types_extra_specs,
-            str(uuid.uuid4()))
+            data_utils.rand_uuid())
 
     @test.idempotent_id('9f402cbd-1838-4eb4-9554-126a6b1908c9')
     def test_get_nonexistent_volume_type_id(self):
@@ -127,7 +125,7 @@
         self.assertRaises(
             lib_exc.NotFound,
             self.volume_types_client.show_volume_type_extra_specs,
-            str(uuid.uuid4()), extra_specs.keys()[0])
+            data_utils.rand_uuid(), extra_specs.keys()[0])
 
     @test.idempotent_id('c881797d-12ff-4f1a-b09d-9f6212159753')
     def test_get_nonexistent_extra_spec_id(self):
@@ -136,7 +134,7 @@
         self.assertRaises(
             lib_exc.NotFound,
             self.volume_types_client.show_volume_type_extra_specs,
-            self.volume_type['id'], str(uuid.uuid4()))
+            self.volume_type['id'], data_utils.rand_uuid())
 
 
 class ExtraSpecsNegativeV1Test(ExtraSpecsNegativeV2Test):
diff --git a/tempest/api/volume/admin/test_volume_types_negative.py b/tempest/api/volume/admin/test_volume_types_negative.py
index bccf20e..aff5466 100644
--- a/tempest/api/volume/admin/test_volume_types_negative.py
+++ b/tempest/api/volume/admin/test_volume_types_negative.py
@@ -13,9 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.volume import base
+from tempest.lib.common.utils import data_utils
 from tempest.lib import exceptions as lib_exc
 from tempest import test
 
@@ -26,8 +25,8 @@
     def test_create_with_nonexistent_volume_type(self):
         # Should not be able to create volume with nonexistent volume_type.
         self.name_field = self.special_fields['name_field']
-        params = {self.name_field: str(uuid.uuid4()),
-                  'volume_type': str(uuid.uuid4())}
+        params = {self.name_field: data_utils.rand_uuid(),
+                  'volume_type': data_utils.rand_uuid()}
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.create_volume, **params)
 
@@ -42,14 +41,14 @@
         # Should not be able to get volume type with nonexistent type id.
         self.assertRaises(lib_exc.NotFound,
                           self.volume_types_client.show_volume_type,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.idempotent_id('6b3926d2-7d73-4896-bc3d-e42dfd11a9f6')
     def test_delete_nonexistent_type_id(self):
         # Should not be able to delete volume type with nonexistent type id.
         self.assertRaises(lib_exc.NotFound,
                           self.volume_types_client.delete_volume_type,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
 
 class VolumeTypesNegativeV1Test(VolumeTypesNegativeV2Test):
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index 1b5e72a..77bfaf1 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -13,8 +13,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
 from tempest.common import waiters
@@ -44,14 +42,14 @@
     def test_volume_get_nonexistent_volume_id(self):
         # Should not be able to get a non-existent volume
         self.assertRaises(lib_exc.NotFound, self.client.show_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('555efa6e-efcd-44ef-8a3b-4a7ca4837a29')
     def test_volume_delete_nonexistent_volume_id(self):
         # Should not be able to delete a non-existent Volume
         self.assertRaises(lib_exc.NotFound, self.client.delete_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('1ed83a8a-682d-4dfb-a30e-ee63ffd6c049')
@@ -98,7 +96,7 @@
         v_name = data_utils.rand_name('Volume')
         metadata = {'Type': 'work'}
         self.assertRaises(lib_exc.NotFound, self.client.create_volume,
-                          size='1', volume_type=str(uuid.uuid4()),
+                          size='1', volume_type=data_utils.rand_uuid(),
                           display_name=v_name, metadata=metadata)
 
     @test.attr(type=['negative'])
@@ -108,7 +106,7 @@
         v_name = data_utils.rand_name('Volume')
         metadata = {'Type': 'work'}
         self.assertRaises(lib_exc.NotFound, self.client.create_volume,
-                          size='1', snapshot_id=str(uuid.uuid4()),
+                          size='1', snapshot_id=data_utils.rand_uuid(),
                           display_name=v_name, metadata=metadata)
 
     @test.attr(type=['negative'])
@@ -118,7 +116,7 @@
         v_name = data_utils.rand_name('Volume')
         metadata = {'Type': 'work'}
         self.assertRaises(lib_exc.NotFound, self.client.create_volume,
-                          size='1', source_volid=str(uuid.uuid4()),
+                          size='1', source_volid=data_utils.rand_uuid(),
                           display_name=v_name, metadata=metadata)
 
     @test.attr(type=['negative'])
@@ -127,7 +125,8 @@
         v_name = data_utils.rand_name('Volume')
         metadata = {'Type': 'work'}
         self.assertRaises(lib_exc.NotFound, self.client.update_volume,
-                          volume_id=str(uuid.uuid4()), display_name=v_name,
+                          volume_id=data_utils.rand_uuid(),
+                          display_name=v_name,
                           metadata=metadata)
 
     @test.attr(type=['negative'])
@@ -188,7 +187,7 @@
 
         self.assertRaises(lib_exc.NotFound,
                           self.client.attach_volume,
-                          str(uuid.uuid4()),
+                          data_utils.rand_uuid(),
                           instance_uuid=server['id'],
                           mountpoint=self.mountpoint)
 
@@ -229,7 +228,7 @@
         # Extend volume size when volume is nonexistent.
         extend_size = int(self.volume['size']) + 1
         self.assertRaises(lib_exc.NotFound, self.client.extend_volume,
-                          str(uuid.uuid4()), new_size=extend_size)
+                          data_utils.rand_uuid(), new_size=extend_size)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('aff8ba64-6d6f-4f2e-bc33-41a08ee9f115')
@@ -244,14 +243,14 @@
     def test_reserve_volume_with_nonexistent_volume_id(self):
         self.assertRaises(lib_exc.NotFound,
                           self.client.reserve_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('eb467654-3dc1-4a72-9b46-47c29d22654c')
     def test_unreserve_volume_with_nonexistent_volume_id(self):
         self.assertRaises(lib_exc.NotFound,
                           self.client.unreserve_volume,
-                          str(uuid.uuid4()))
+                          data_utils.rand_uuid())
 
     @test.attr(type=['negative'])
     @test.idempotent_id('449c4ed2-ecdd-47bb-98dc-072aeccf158c')
diff --git a/tempest/api/volume/test_volumes_snapshots_negative.py b/tempest/api/volume/test_volumes_snapshots_negative.py
index 54459ac..374979c 100644
--- a/tempest/api/volume/test_volumes_snapshots_negative.py
+++ b/tempest/api/volume/test_volumes_snapshots_negative.py
@@ -10,8 +10,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
 from tempest import config
@@ -36,7 +34,8 @@
         s_name = data_utils.rand_name('snap')
         self.assertRaises(lib_exc.NotFound,
                           self.snapshots_client.create_snapshot,
-                          volume_id=str(uuid.uuid4()), display_name=s_name)
+                          volume_id=data_utils.rand_uuid(),
+                          display_name=s_name)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('bb9da53e-d335-4309-9c15-7e76fd5e4d6d')
diff --git a/tempest/api/volume/v2/test_volumes_list.py b/tempest/api/volume/v2/test_volumes_list.py
index bedbad4..1fa54c2 100644
--- a/tempest/api/volume/v2/test_volumes_list.py
+++ b/tempest/api/volume/v2/test_volumes_list.py
@@ -18,6 +18,7 @@
 from six.moves.urllib import parse
 
 from tempest.api.volume import base
+from tempest.lib import decorators
 from tempest import test
 
 
@@ -188,6 +189,7 @@
         self._test_pagination('volumes', ids=self.volume_id_list, detail=False)
 
     @test.idempotent_id('46eff077-100b-427f-914e-3db2abcdb7e2')
+    @decorators.skip_because(bug='1572765')
     def test_volume_list_with_detail_param_marker(self):
         # Choosing a random volume from a list of volumes for 'marker'
         # parameter
diff --git a/tempest/cmd/account_generator.py b/tempest/cmd/account_generator.py
index a154d0b..5fab961 100755
--- a/tempest/cmd/account_generator.py
+++ b/tempest/cmd/account_generator.py
@@ -262,7 +262,7 @@
             user = identity.get_user_by_username(tenants_admin,
                                                  tenant['id'], u['name'])
         except tempest.lib.exceptions.NotFound:
-            LOG.error("User: %s - not found" % u['user'])
+            LOG.error("User: %s - not found" % u['name'])
             continue
         for r in u['role_ids']:
             try:
diff --git a/tempest/cmd/init.py b/tempest/cmd/init.py
index ac67ce4..c2b3ce1 100644
--- a/tempest/cmd/init.py
+++ b/tempest/cmd/init.py
@@ -54,21 +54,28 @@
     real_prefix = getattr(sys, 'real_prefix', None)
     base_prefix = getattr(sys, 'base_prefix', None)
     prefix = sys.prefix
+    global_conf_dir = '/etc/tempest'
     if (real_prefix is None and
-            (base_prefix is None or base_prefix == prefix)):
+            (base_prefix is None or base_prefix == prefix) and
+            os.path.isdir(global_conf_dir)):
         # Probably not running in a virtual environment.
         # NOTE(andreaf) we cannot distinguish this case from the case of
         # a virtual environment created with virtualenv, and running python3.
         # Also if it appears we are not in virtual env and fail to find
         # global config: '/etc/tempest', fall back to
         # '[sys.prefix]/etc/tempest'
-        global_conf_dir = '/etc/tempest'
-        if os.path.isdir(global_conf_dir):
-            return global_conf_dir
-        else:
-            return os.path.join(prefix, 'etc/tempest')
+        return global_conf_dir
     else:
-        return os.path.join(prefix, 'etc/tempest')
+        conf_dir = os.path.join(prefix, 'etc/tempest')
+        if os.path.isdir(conf_dir):
+            return conf_dir
+        else:
+            # NOTE: The prefix is gotten from the path which pyconfig.h is
+            # installed under. Some envs contain it under /usr/include, not
+            # /user/local/include. Then prefix becomes /usr on such envs.
+            # However, etc/tempest is installed under /usr/local and the bove
+            # path logic mismatches. This is a workaround for such envs.
+            return os.path.join(prefix, 'local/etc/tempest')
 
 
 class TempestInit(command.Command):
@@ -91,7 +98,7 @@
     def update_local_conf(self, conf_path, lock_dir, log_dir):
         config_parse = moves.configparser.SafeConfigParser()
         config_parse.optionxform = str
-        with open(conf_path, 'w+') as conf_file:
+        with open(conf_path, 'a+') as conf_file:
             config_parse.readfp(conf_file)
             # Set local lock_dir in tempest conf
             if not config_parse.has_section('oslo_concurrency'):
diff --git a/tempest/cmd/verify_tempest_config.py b/tempest/cmd/verify_tempest_config.py
index f29973d..3ef04f5 100644
--- a/tempest/cmd/verify_tempest_config.py
+++ b/tempest/cmd/verify_tempest_config.py
@@ -365,7 +365,16 @@
         CONF_PARSER = moves.configparser.SafeConfigParser()
         CONF_PARSER.optionxform = str
         CONF_PARSER.readfp(conf_file)
-    icreds = credentials.get_credentials_provider('verify_tempest_config')
+
+    # Indicate not to create network resources as part of getting credentials
+    net_resources = {
+        'network': False,
+        'router': False,
+        'subnet': False,
+        'dhcp': False
+    }
+    icreds = credentials.get_credentials_provider(
+        'verify_tempest_config', network_resources=net_resources)
     try:
         os = clients.Manager(icreds.get_primary_creds())
         services = check_service_availability(os, update)
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index b5c4547..7ebc283 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -157,3 +157,29 @@
                                           % server['id'])
 
     return body, servers
+
+
+def shelve_server(client, server_id, force_shelve_offload=False):
+    """Common wrapper utility to shelve server.
+
+    This method is a common wrapper to make server in 'SHELVED'
+    or 'SHELVED_OFFLOADED' state.
+
+    :param server_id: Server to make in shelve state
+    :param force_shelve_offload: Forcefully offload shelve server if it
+                                 is configured not to offload server
+                                 automatically after offload time.
+    """
+    client.shelve_server(server_id)
+
+    offload_time = CONF.compute.shelved_offload_time
+    if offload_time >= 0:
+        waiters.wait_for_server_status(client, server_id,
+                                       'SHELVED_OFFLOADED',
+                                       extra_timeout=offload_time)
+    else:
+        waiters.wait_for_server_status(client, server_id, 'SHELVED')
+        if force_shelve_offload:
+            client.shelve_offload_server(server_id)
+            waiters.wait_for_server_status(client, server_id,
+                                           'SHELVED_OFFLOADED')
diff --git a/tempest/common/credentials_factory.py b/tempest/common/credentials_factory.py
index 58157ef..3923aec 100644
--- a/tempest/common/credentials_factory.py
+++ b/tempest/common/credentials_factory.py
@@ -133,7 +133,7 @@
     def get_creds_by_roles(self, roles, force_new=False):
         msg = "Credentials being specified through the config file can not be"\
               " used with tests that specify using credentials by roles. "\
-              "Either exclude/skip the tests doing this or use either an "\
+              "Either exclude/skip the tests doing this or use either a "\
               "test_accounts_file or dynamic credentials."
         raise exceptions.InvalidConfiguration(msg)
 
diff --git a/tempest/config.py b/tempest/config.py
index b787b19..67c8c9e 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -91,7 +91,7 @@
                     "create users and projects",
                deprecated_group='identity'),
     cfg.StrOpt('admin_project_name',
-               help="Project name to use for an  administrative user. This is "
+               help="Project name to use for an administrative user. This is "
                     "needed for authenticating requests made by project "
                     "isolation to create users and projects",
                deprecated_opts=[cfg.DeprecatedOpt('admin_tenant_name',
@@ -99,7 +99,7 @@
                                 cfg.DeprecatedOpt('admin_tenant_name',
                                                   group='identity')]),
     cfg.StrOpt('admin_password',
-               help="Password to use for an  administrative user. This is "
+               help="Password to use for an administrative user. This is "
                     "needed for authenticating requests made by project "
                     "isolation to create users and projects",
                secret=True,
@@ -700,22 +700,10 @@
                choices=['public', 'admin', 'internal',
                         'publicURL', 'adminURL', 'internalURL'],
                help="The endpoint type to use for the volume service."),
-    cfg.StrOpt('backend1_name',
-               default='',
-               help='Name of the backend1 (must be declared in cinder.conf)',
-               deprecated_for_removal=True),
-    cfg.StrOpt('backend2_name',
-               default='',
-               help='Name of the backend2 (must be declared in cinder.conf)',
-               deprecated_for_removal=True),
     cfg.ListOpt('backend_names',
                 default=['BACKEND_1', 'BACKEND_2'],
                 help='A list of backend names separated by comma. '
-                     'The backend name must be declared in cinder.conf',
-                deprecated_opts=[cfg.DeprecatedOpt('BACKEND_1',
-                                                   group='volume'),
-                                 cfg.DeprecatedOpt('BACKEND_2',
-                                                   group='volume')]),
+                     'The backend name must be declared in cinder.conf'),
     cfg.StrOpt('storage_protocol',
                default='iSCSI',
                help='Backend protocol to target when creating volume types'),
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index 031df7f..b8e052f 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -82,11 +82,6 @@
     message = "Image %(image_id)s failed to become ACTIVE in the allotted time"
 
 
-class EC2RegisterImageException(TempestException):
-    message = ("Image %(image_id)s failed to become 'available' "
-               "in the allotted time")
-
-
 class VolumeBuildErrorException(TempestException):
     message = "Volume %(volume_id)s failed to build and is in ERROR status"
 
@@ -108,25 +103,10 @@
                "due to '%(stack_status_reason)s'")
 
 
-class StackResourceBuildErrorException(TempestException):
-    message = ("Resource %(resource_name)s in stack %(stack_identifier)s is "
-               "in %(resource_status)s status due to "
-               "'%(resource_status_reason)s'")
-
-
-class AuthenticationFailure(TempestException):
-    message = ("Authentication with user %(user)s and password "
-               "%(password)s failed auth using tenant %(tenant)s.")
-
-
 class EndpointNotFound(TempestException):
     message = "Endpoint not found"
 
 
-class ImageFault(TempestException):
-    message = "Got image fault"
-
-
 class IdentityError(TempestException):
     message = "Got identity error"
 
@@ -135,10 +115,6 @@
     message = "The server is not reachable via the configured network"
 
 
-class TearDownException(TempestException):
-    message = "%(num)d cleanUp operation failed"
-
-
 # NOTE(andreaf) This exception is added here to facilitate the migration
 # of get_network_from_name and preprov_creds to tempest-lib, and it should
 # be migrated along with them
diff --git a/tempest/hacking/checks.py b/tempest/hacking/checks.py
index 9ebb17e..d0e1fcb 100644
--- a/tempest/hacking/checks.py
+++ b/tempest/hacking/checks.py
@@ -241,6 +241,22 @@
     yield (0, msg)
 
 
+def use_rand_uuid_instead_of_uuid4(logical_line, filename):
+    """Check that tests use data_utils.rand_uuid() instead of uuid.uuid4()
+
+    T113
+    """
+    if 'tempest/lib/' in filename:
+        return
+
+    if 'uuid.uuid4()' not in logical_line:
+        return
+
+    msg = ("T113: Tests should use data_utils.rand_uuid()/rand_uuid_hex() "
+           "instead of uuid.uuid4()/uuid.uuid4().hex")
+    yield (0, msg)
+
+
 def factory(register):
     register(import_no_clients_in_api_and_scenario_tests)
     register(scenario_tests_need_service_tags)
@@ -253,3 +269,4 @@
     register(get_resources_on_service_clients)
     register(delete_resources_on_service_clients)
     register(dont_import_local_tempest_into_lib)
+    register(use_rand_uuid_instead_of_uuid4)
diff --git a/tempest/lib/api_schema/response/compute/v2_19/__init__.py b/tempest/lib/api_schema/response/compute/v2_19/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_19/__init__.py
diff --git a/tempest/lib/api_schema/response/compute/v2_19/servers.py b/tempest/lib/api_schema/response/compute/v2_19/servers.py
new file mode 100644
index 0000000..883839e
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_19/servers.py
@@ -0,0 +1,49 @@
+# Copyright 2016 NEC Corporation.  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 copy
+
+from tempest.lib.api_schema.response.compute.v2_1 import servers as serversv21
+from tempest.lib.api_schema.response.compute.v2_9 import servers as serversv29
+
+get_server = copy.deepcopy(serversv29.get_server)
+get_server['response_body']['properties']['server'][
+    'properties'].update({'description': {'type': ['string', 'null']}})
+get_server['response_body']['properties']['server'][
+    'required'].append('description')
+
+list_servers_detail = copy.deepcopy(serversv29.list_servers_detail)
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'properties'].update({'description': {'type': ['string', 'null']}})
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'required'].append('description')
+
+update_server = copy.deepcopy(serversv21.update_server)
+update_server['response_body']['properties']['server'][
+    'properties'].update({'description': {'type': ['string', 'null']}})
+update_server['response_body']['properties']['server'][
+    'required'].append('description')
+
+rebuild_server = copy.deepcopy(serversv21.rebuild_server)
+rebuild_server['response_body']['properties']['server'][
+    'properties'].update({'description': {'type': ['string', 'null']}})
+rebuild_server['response_body']['properties']['server'][
+    'required'].append('description')
+
+rebuild_server_with_admin_pass = copy.deepcopy(
+    serversv21.rebuild_server_with_admin_pass)
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'properties'].update({'description': {'type': ['string', 'null']}})
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'required'].append('description')
diff --git a/tempest/lib/api_schema/response/compute/v2_9/__init__.py b/tempest/lib/api_schema/response/compute/v2_9/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_9/__init__.py
diff --git a/tempest/lib/api_schema/response/compute/v2_9/servers.py b/tempest/lib/api_schema/response/compute/v2_9/servers.py
new file mode 100644
index 0000000..e9b7249
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_9/servers.py
@@ -0,0 +1,29 @@
+# Copyright 2016 NEC Corporation.  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 copy
+
+from tempest.lib.api_schema.response.compute.v2_1 import servers
+
+get_server = copy.deepcopy(servers.get_server)
+get_server['response_body']['properties']['server'][
+    'properties'].update({'locked': {'type': 'boolean'}})
+get_server['response_body']['properties']['server'][
+    'required'].append('locked')
+
+list_servers_detail = copy.deepcopy(servers.list_servers_detail)
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'properties'].update({'locked': {'type': 'boolean'}})
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'required'].append('locked')
diff --git a/tempest/lib/common/ssh.py b/tempest/lib/common/ssh.py
index 511dd08..a831dbd 100644
--- a/tempest/lib/common/ssh.py
+++ b/tempest/lib/common/ssh.py
@@ -117,56 +117,56 @@
         """
         ssh = self._get_ssh_connection()
         transport = ssh.get_transport()
-        channel = transport.open_session()
-        channel.fileno()  # Register event pipe
-        channel.exec_command(cmd)
-        channel.shutdown_write()
-        exit_status = channel.recv_exit_status()
+        with transport.open_session() as channel:
+            channel.fileno()  # Register event pipe
+            channel.exec_command(cmd)
+            channel.shutdown_write()
+            exit_status = channel.recv_exit_status()
 
-        # If the executing host is linux-based, poll the channel
-        if self._can_system_poll():
-            out_data_chunks = []
-            err_data_chunks = []
-            poll = select.poll()
-            poll.register(channel, select.POLLIN)
-            start_time = time.time()
+            # If the executing host is linux-based, poll the channel
+            if self._can_system_poll():
+                out_data_chunks = []
+                err_data_chunks = []
+                poll = select.poll()
+                poll.register(channel, select.POLLIN)
+                start_time = time.time()
 
-            while True:
-                ready = poll.poll(self.channel_timeout)
-                if not any(ready):
-                    if not self._is_timed_out(start_time):
+                while True:
+                    ready = poll.poll(self.channel_timeout)
+                    if not any(ready):
+                        if not self._is_timed_out(start_time):
+                            continue
+                        raise exceptions.TimeoutException(
+                            "Command: '{0}' executed on host '{1}'.".format(
+                                cmd, self.host))
+                    if not ready[0]:  # If there is nothing to read.
                         continue
-                    raise exceptions.TimeoutException(
-                        "Command: '{0}' executed on host '{1}'.".format(
-                            cmd, self.host))
-                if not ready[0]:  # If there is nothing to read.
-                    continue
-                out_chunk = err_chunk = None
-                if channel.recv_ready():
-                    out_chunk = channel.recv(self.buf_size)
-                    out_data_chunks += out_chunk,
-                if channel.recv_stderr_ready():
-                    err_chunk = channel.recv_stderr(self.buf_size)
-                    err_data_chunks += err_chunk,
-                if channel.closed and not err_chunk and not out_chunk:
-                    break
-            out_data = b''.join(out_data_chunks)
-            err_data = b''.join(err_data_chunks)
-        # Just read from the channels
-        else:
-            out_file = channel.makefile('rb', self.buf_size)
-            err_file = channel.makefile_stderr('rb', self.buf_size)
-            out_data = out_file.read()
-            err_data = err_file.read()
-        if encoding:
-            out_data = out_data.decode(encoding)
-            err_data = err_data.decode(encoding)
+                    out_chunk = err_chunk = None
+                    if channel.recv_ready():
+                        out_chunk = channel.recv(self.buf_size)
+                        out_data_chunks += out_chunk,
+                    if channel.recv_stderr_ready():
+                        err_chunk = channel.recv_stderr(self.buf_size)
+                        err_data_chunks += err_chunk,
+                    if not err_chunk and not out_chunk:
+                        break
+                out_data = b''.join(out_data_chunks)
+                err_data = b''.join(err_data_chunks)
+            # Just read from the channels
+            else:
+                out_file = channel.makefile('rb', self.buf_size)
+                err_file = channel.makefile_stderr('rb', self.buf_size)
+                out_data = out_file.read()
+                err_data = err_file.read()
+            if encoding:
+                out_data = out_data.decode(encoding)
+                err_data = err_data.decode(encoding)
 
-        if 0 != exit_status:
-            raise exceptions.SSHExecCommandFailed(
-                command=cmd, exit_status=exit_status,
-                stderr=err_data, stdout=out_data)
-        return out_data
+            if 0 != exit_status:
+                raise exceptions.SSHExecCommandFailed(
+                    command=cmd, exit_status=exit_status,
+                    stderr=err_data, stdout=out_data)
+            return out_data
 
     def test_connection_auth(self):
         """Raises an exception when we can not connect to server via ssh."""
diff --git a/tempest/lib/services/compute/servers_client.py b/tempest/lib/services/compute/servers_client.py
index a37f167..0472eda 100644
--- a/tempest/lib/services/compute/servers_client.py
+++ b/tempest/lib/services/compute/servers_client.py
@@ -20,11 +20,17 @@
 from six.moves.urllib import parse as urllib
 
 from tempest.lib.api_schema.response.compute.v2_1 import servers as schema
+from tempest.lib.api_schema.response.compute.v2_19 import servers as schemav219
+from tempest.lib.api_schema.response.compute.v2_9 import servers as schemav29
 from tempest.lib.common import rest_client
 from tempest.lib.services.compute import base_compute_client
 
 
 class ServersClient(base_compute_client.BaseComputeClient):
+    schema_versions_info = [
+        {'min': None, 'max': '2.8', 'schema': schema},
+        {'min': '2.9', 'max': '2.18', 'schema': schemav29},
+        {'min': '2.19', 'max': None, 'schema': schemav219}]
 
     def __init__(self, auth_provider, service, region,
                  enable_instance_password=True, **kwargs):
@@ -88,6 +94,7 @@
         post_body = json.dumps({'server': kwargs})
         resp, body = self.put("servers/%s" % server_id, post_body)
         body = json.loads(body)
+        schema = self.get_schema(self.schema_versions_info)
         self.validate_response(schema.update_server, resp, body)
         return rest_client.ResponseBody(resp, body)
 
@@ -95,6 +102,7 @@
         """Get server details."""
         resp, body = self.get("servers/%s" % server_id)
         body = json.loads(body)
+        schema = self.get_schema(self.schema_versions_info)
         self.validate_response(schema.get_server, resp, body)
         return rest_client.ResponseBody(resp, body)
 
@@ -114,6 +122,7 @@
         """
 
         url = 'servers'
+        schema = self.get_schema(self.schema_versions_info)
         _schema = schema.list_servers
 
         if detail:
@@ -209,6 +218,7 @@
         kwargs['imageRef'] = image_ref
         if 'disk_config' in kwargs:
             kwargs['OS-DCF:diskConfig'] = kwargs.pop('disk_config')
+        schema = self.get_schema(self.schema_versions_info)
         if self.enable_instance_password:
             rebuild_schema = schema.rebuild_server_with_admin_pass
         else:
diff --git a/tempest/scenario/test_shelve_instance.py b/tempest/scenario/test_shelve_instance.py
index 77de47e..6d3ecd4 100644
--- a/tempest/scenario/test_shelve_instance.py
+++ b/tempest/scenario/test_shelve_instance.py
@@ -15,6 +15,7 @@
 
 import testtools
 
+from tempest.common import compute
 from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
@@ -35,18 +36,9 @@
     """
 
     def _shelve_then_unshelve_server(self, server):
-        self.servers_client.shelve_server(server['id'])
-        offload_time = CONF.compute.shelved_offload_time
-        if offload_time >= 0:
-            waiters.wait_for_server_status(self.servers_client, server['id'],
-                                           'SHELVED_OFFLOADED',
-                                           extra_timeout=offload_time)
-        else:
-            waiters.wait_for_server_status(self.servers_client,
-                                           server['id'], 'SHELVED')
-            self.servers_client.shelve_offload_server(server['id'])
-            waiters.wait_for_server_status(self.servers_client, server['id'],
-                                           'SHELVED_OFFLOADED')
+        compute.shelve_server(self.servers_client, server['id'],
+                              force_shelve_offload=True)
+
         self.servers_client.unshelve_server(server['id'])
         waiters.wait_for_server_status(self.servers_client, server['id'],
                                        'ACTIVE')
diff --git a/tempest/test.py b/tempest/test.py
index 6ba4962..b32beaa 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -19,7 +19,6 @@
 import re
 import sys
 import time
-import uuid
 
 import fixtures
 from oslo_log import log as logging
@@ -38,6 +37,7 @@
 import tempest.common.validation_resources as vresources
 from tempest import config
 from tempest import exceptions
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
 
 LOG = logging.getLogger(__name__)
@@ -714,10 +714,10 @@
                 resource = resource['name']
             LOG.debug("Add resource to test %s" % resource)
             scn_name = "inv_res_%s" % (resource)
-            scenario_list.append((scn_name, {"resource": (resource,
-                                                          str(uuid.uuid4())),
-                                             "expected_result": expected_result
-                                             }))
+            scenario_list.append((scn_name, {
+                "resource": (resource, data_utils.rand_uuid()),
+                "expected_result": expected_result
+            }))
         if schema is not None:
             for scenario in generator.generate_scenarios(schema):
                 scenario_list.append((scenario['_negtest_name'],
diff --git a/tempest/tests/lib/base.py b/tempest/tests/base.py
similarity index 79%
rename from tempest/tests/lib/base.py
rename to tempest/tests/base.py
index fe9268e..ca81d4d 100644
--- a/tempest/tests/lib/base.py
+++ b/tempest/tests/base.py
@@ -14,17 +14,10 @@
 
 import mock
 from oslotest import base
-from oslotest import moxstubout
 
 
 class TestCase(base.BaseTestCase):
 
-    def setUp(self):
-        super(TestCase, self).setUp()
-        mox_fixture = self.useFixture(moxstubout.MoxStubout())
-        self.mox = mox_fixture.mox
-        self.stubs = mox_fixture.stubs
-
     def patch(self, target, **kwargs):
         """Returns a started `mock.patch` object for the supplied target.
 
@@ -42,3 +35,15 @@
         m = p.start()
         self.addCleanup(p.stop)
         return m
+
+    def patchobject(self, target, attribute, new=mock.DEFAULT):
+        """Convenient wrapper around `mock.patch.object`
+
+        Returns a started mock that will be automatically stopped after the
+        test ran.
+        """
+
+        p = mock.patch.object(target, attribute, new)
+        m = p.start()
+        self.addCleanup(p.stop)
+        return m
diff --git a/tempest/tests/cmd/test_javelin.py b/tempest/tests/cmd/test_javelin.py
index b8c9969..2d0256a 100644
--- a/tempest/tests/cmd/test_javelin.py
+++ b/tempest/tests/cmd/test_javelin.py
@@ -17,7 +17,7 @@
 
 from tempest.cmd import javelin
 from tempest.lib import exceptions as lib_exc
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class JavelinUnitTest(base.TestCase):
diff --git a/tempest/tests/cmd/test_list_plugins.py b/tempest/tests/cmd/test_list_plugins.py
index 782dde7..17ddb18 100644
--- a/tempest/tests/cmd/test_list_plugins.py
+++ b/tempest/tests/cmd/test_list_plugins.py
@@ -14,7 +14,7 @@
 
 import subprocess
 
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestTempestListPlugins(base.TestCase):
diff --git a/tempest/tests/cmd/test_tempest_init.py b/tempest/tests/cmd/test_tempest_init.py
index 6c5326a..685a0b3 100644
--- a/tempest/tests/cmd/test_tempest_init.py
+++ b/tempest/tests/cmd/test_tempest_init.py
@@ -18,7 +18,7 @@
 import fixtures
 
 from tempest.cmd import init
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestTempestInit(base.TestCase):
diff --git a/tempest/tests/cmd/test_verify_tempest_config.py b/tempest/tests/cmd/test_verify_tempest_config.py
index 9df07a1..3b09673 100644
--- a/tempest/tests/cmd/test_verify_tempest_config.py
+++ b/tempest/tests/cmd/test_verify_tempest_config.py
@@ -19,8 +19,8 @@
 
 from tempest.cmd import verify_tempest_config
 from tempest import config
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestGetAPIVersions(base.TestCase):
@@ -41,7 +41,8 @@
     def setUp(self):
         super(TestDiscovery, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def test_get_keystone_api_versions(self):
         self.useFixture(mockpatch.PatchObject(
diff --git a/tempest/tests/common/test_admin_available.py b/tempest/tests/common/test_admin_available.py
index c803541..01a9cd0 100644
--- a/tempest/tests/common/test_admin_available.py
+++ b/tempest/tests/common/test_admin_available.py
@@ -17,8 +17,8 @@
 
 from tempest.common import credentials_factory as credentials
 from tempest import config
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestAdminAvailable(base.TestCase):
@@ -28,7 +28,8 @@
     def setUp(self):
         super(TestAdminAvailable, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def run_test(self, dynamic_creds, use_accounts_file, admin_creds):
 
diff --git a/tempest/tests/common/test_alt_available.py b/tempest/tests/common/test_alt_available.py
index cb1de16..d4cfab6 100644
--- a/tempest/tests/common/test_alt_available.py
+++ b/tempest/tests/common/test_alt_available.py
@@ -17,8 +17,8 @@
 
 from tempest.common import credentials_factory as credentials
 from tempest import config
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestAltAvailable(base.TestCase):
@@ -28,7 +28,8 @@
     def setUp(self):
         super(TestAltAvailable, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def run_test(self, dynamic_creds, use_accounts_file, creds):
 
diff --git a/tempest/tests/common/test_configured_creds.py b/tempest/tests/common/test_configured_creds.py
index 3c104b2..3c242b3 100644
--- a/tempest/tests/common/test_configured_creds.py
+++ b/tempest/tests/common/test_configured_creds.py
@@ -21,8 +21,8 @@
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.identity.v2 import token_client as v2_client
 from tempest.lib.services.identity.v3 import token_client as v3_client
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 from tempest.tests.lib import fake_identity
 
 
@@ -41,9 +41,10 @@
     def setUp(self):
         super(ConfiguredV2CredentialsTests, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
-        self.stubs.Set(self.tokenclient_class, 'raw_request',
-                       self.identity_response)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
+        self.patchobject(self.tokenclient_class, 'raw_request',
+                         self.identity_response)
 
     def _get_credentials(self, attributes=None):
         if attributes is None:
diff --git a/tempest/tests/common/test_credentials.py b/tempest/tests/common/test_credentials.py
index 6fc490e..00f2d39 100644
--- a/tempest/tests/common/test_credentials.py
+++ b/tempest/tests/common/test_credentials.py
@@ -15,8 +15,8 @@
 from tempest.common import credentials_factory as credentials
 from tempest import config
 from tempest import exceptions
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestLegacyCredentialsProvider(base.TestCase):
@@ -26,7 +26,8 @@
     def setUp(self):
         super(TestLegacyCredentialsProvider, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def test_get_creds_roles_legacy_invalid(self):
         test_accounts_class = credentials.LegacyCredentialProvider(
diff --git a/tempest/tests/common/test_custom_matchers.py b/tempest/tests/common/test_custom_matchers.py
index d664961..2656a47 100644
--- a/tempest/tests/common/test_custom_matchers.py
+++ b/tempest/tests/common/test_custom_matchers.py
@@ -14,7 +14,7 @@
 #    under the License.
 
 from tempest.common import custom_matchers
-from tempest.tests.lib import base
+from tempest.tests import base
 
 from testtools.tests.matchers import helpers
 
diff --git a/tempest/tests/common/test_dynamic_creds.py b/tempest/tests/common/test_dynamic_creds.py
index e1d9023..8d4f33b 100644
--- a/tempest/tests/common/test_dynamic_creds.py
+++ b/tempest/tests/common/test_dynamic_creds.py
@@ -31,8 +31,8 @@
 from tempest.services.identity.v2.json import users_client as \
     json_users_client
 from tempest.services.network.json import routers_client
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 from tempest.tests.lib import fake_http
 from tempest.tests.lib import fake_identity
 
@@ -46,9 +46,10 @@
     def setUp(self):
         super(TestDynamicCredentialProvider, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
-        self.stubs.Set(json_token_client.TokenClient, 'raw_request',
-                       fake_identity._fake_v2_response)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
+        self.patchobject(json_token_client.TokenClient, 'raw_request',
+                         fake_identity._fake_v2_response)
         cfg.CONF.set_default('operator_role', 'FakeRole',
                              group='object-storage')
         self._mock_list_ec2_credentials('fake_user_id', 'fake_tenant_id')
diff --git a/tempest/tests/common/test_preprov_creds.py b/tempest/tests/common/test_preprov_creds.py
index 36d6c3d..b595c88 100644
--- a/tempest/tests/common/test_preprov_creds.py
+++ b/tempest/tests/common/test_preprov_creds.py
@@ -28,8 +28,8 @@
 from tempest.lib import auth
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.identity.v2 import token_client
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 from tempest.tests.lib import fake_identity
 
 
@@ -46,9 +46,10 @@
     def setUp(self):
         super(TestPreProvisionedCredentials, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
-        self.stubs.Set(token_client.TokenClient, 'raw_request',
-                       fake_identity._fake_v2_response)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
+        self.patchobject(token_client.TokenClient, 'raw_request',
+                         fake_identity._fake_v2_response)
         self.useFixture(lockutils_fixtures.ExternalLockFixture())
         self.test_accounts = [
             {'username': 'test_user1', 'tenant_name': 'test_tenant1',
@@ -96,8 +97,8 @@
         return hash_list
 
     def test_get_hash(self):
-        self.stubs.Set(token_client.TokenClient, 'raw_request',
-                       fake_identity._fake_v2_response)
+        self.patchobject(token_client.TokenClient, 'raw_request',
+                         fake_identity._fake_v2_response)
         test_account_class = preprov_creds.PreProvisionedCredentialProvider(
             **self.fixed_params)
         hash_list = self._get_hash_list(self.test_accounts)
@@ -188,7 +189,7 @@
                 return False
             return True
 
-        self.stubs.Set(os.path, 'isfile', _fake_is_file)
+        self.patchobject(os.path, 'isfile', _fake_is_file)
         with mock.patch('six.moves.builtins.open', mock.mock_open(),
                         create=True) as open_mock:
             test_account_class._get_free_hash(hash_list)
diff --git a/tempest/tests/common/test_waiters.py b/tempest/tests/common/test_waiters.py
index e0cef62..492bdca 100644
--- a/tempest/tests/common/test_waiters.py
+++ b/tempest/tests/common/test_waiters.py
@@ -19,7 +19,7 @@
 from tempest.common import waiters
 from tempest import exceptions
 from tempest.services.volume.base import base_volumes_client
-from tempest.tests.lib import base
+from tempest.tests import base
 import tempest.tests.utils as utils
 
 
diff --git a/tempest/tests/common/utils/linux/test_remote_client.py b/tempest/tests/common/utils/linux/test_remote_client.py
index 22cf47a..e9146bc 100644
--- a/tempest/tests/common/utils/linux/test_remote_client.py
+++ b/tempest/tests/common/utils/linux/test_remote_client.py
@@ -19,15 +19,16 @@
 
 from tempest.common.utils.linux import remote_client
 from tempest import config
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestRemoteClient(base.TestCase):
     def setUp(self):
         super(TestRemoteClient, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
         cfg.CONF.set_default('ip_version_for_ssh', 4, group='validation')
         cfg.CONF.set_default('network_for_ssh', 'public', group='validation')
         cfg.CONF.set_default('connect_timeout', 1, group='validation')
diff --git a/tempest/tests/common/utils/test_file_utils.py b/tempest/tests/common/utils/test_file_utils.py
index 1a14592..937aefa 100644
--- a/tempest/tests/common/utils/test_file_utils.py
+++ b/tempest/tests/common/utils/test_file_utils.py
@@ -16,7 +16,7 @@
 import mock
 
 from tempest.common.utils import file_utils
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestFileUtils(base.TestCase):
diff --git a/tempest/tests/lib/cli/test_command_failed.py b/tempest/tests/lib/cli/test_command_failed.py
index 8ce34c2..388028a 100644
--- a/tempest/tests/lib/cli/test_command_failed.py
+++ b/tempest/tests/lib/cli/test_command_failed.py
@@ -11,7 +11,7 @@
 #    under the License.
 
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestOutputParser(base.TestCase):
diff --git a/tempest/tests/lib/cli/test_execute.py b/tempest/tests/lib/cli/test_execute.py
index b5f7145..b846c46 100644
--- a/tempest/tests/lib/cli/test_execute.py
+++ b/tempest/tests/lib/cli/test_execute.py
@@ -14,7 +14,7 @@
 
 from tempest.lib.cli import base as cli_base
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestExecute(base.TestCase):
diff --git a/tempest/tests/lib/cli/test_output_parser.py b/tempest/tests/lib/cli/test_output_parser.py
index a2c1b2d..d88dfc3 100644
--- a/tempest/tests/lib/cli/test_output_parser.py
+++ b/tempest/tests/lib/cli/test_output_parser.py
@@ -16,7 +16,7 @@
 
 from tempest.lib.cli import output_parser
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestOutputParser(base.TestCase):
diff --git a/tempest/tests/lib/common/test_api_version_request.py b/tempest/tests/lib/common/test_api_version_request.py
index bdaa936..58e7040 100644
--- a/tempest/tests/lib/common/test_api_version_request.py
+++ b/tempest/tests/lib/common/test_api_version_request.py
@@ -14,7 +14,7 @@
 
 from tempest.lib.common import api_version_request
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class APIVersionRequestTests(base.TestCase):
diff --git a/tempest/tests/lib/common/test_api_version_utils.py b/tempest/tests/lib/common/test_api_version_utils.py
index 591b87e..6206379 100644
--- a/tempest/tests/lib/common/test_api_version_utils.py
+++ b/tempest/tests/lib/common/test_api_version_utils.py
@@ -16,7 +16,7 @@
 
 from tempest.lib.common import api_version_utils
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestVersionSkipLogic(base.TestCase):
diff --git a/tempest/tests/lib/common/utils/test_data_utils.py b/tempest/tests/lib/common/utils/test_data_utils.py
index 493df89..f435461 100644
--- a/tempest/tests/lib/common/utils/test_data_utils.py
+++ b/tempest/tests/lib/common/utils/test_data_utils.py
@@ -16,7 +16,7 @@
 import netaddr
 
 from tempest.lib.common.utils import data_utils
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestDataUtils(base.TestCase):
diff --git a/tempest/tests/lib/common/utils/test_misc.py b/tempest/tests/lib/common/utils/test_misc.py
index e23d7fb..9597f5b 100644
--- a/tempest/tests/lib/common/utils/test_misc.py
+++ b/tempest/tests/lib/common/utils/test_misc.py
@@ -15,7 +15,7 @@
 
 
 from tempest.lib.common.utils import misc
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 @misc.singleton
diff --git a/tempest/tests/lib/services/compute/base.py b/tempest/tests/lib/services/compute/base.py
index c805de2..e77b436 100644
--- a/tempest/tests/lib/services/compute/base.py
+++ b/tempest/tests/lib/services/compute/base.py
@@ -15,7 +15,7 @@
 from oslo_serialization import jsonutils as json
 from oslotest import mockpatch
 
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_http
 
 
diff --git a/tempest/tests/lib/services/identity/v2/test_token_client.py b/tempest/tests/lib/services/identity/v2/test_token_client.py
index d91ecdc..7925152 100644
--- a/tempest/tests/lib/services/identity/v2/test_token_client.py
+++ b/tempest/tests/lib/services/identity/v2/test_token_client.py
@@ -19,7 +19,7 @@
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions
 from tempest.lib.services.identity.v2 import token_client
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_http
 
 
diff --git a/tempest/tests/lib/services/identity/v3/test_token_client.py b/tempest/tests/lib/services/identity/v3/test_token_client.py
index 52b8e01..e9ef740 100644
--- a/tempest/tests/lib/services/identity/v3/test_token_client.py
+++ b/tempest/tests/lib/services/identity/v3/test_token_client.py
@@ -19,7 +19,7 @@
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions
 from tempest.lib.services.identity.v3 import token_client
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_http
 
 
diff --git a/tempest/tests/lib/test_auth.py b/tempest/tests/lib/test_auth.py
index 5502c01..cc71c92 100644
--- a/tempest/tests/lib/test_auth.py
+++ b/tempest/tests/lib/test_auth.py
@@ -22,7 +22,7 @@
 from tempest.lib import exceptions
 from tempest.lib.services.identity.v2 import token_client as v2_client
 from tempest.lib.services.identity.v3 import token_client as v3_client
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_credentials
 from tempest.tests.lib import fake_identity
 
@@ -41,7 +41,7 @@
 
     def setUp(self):
         super(BaseAuthTestsSetUp, self).setUp()
-        self.stubs.Set(auth, 'get_credentials', fake_get_credentials)
+        self.patchobject(auth, 'get_credentials', fake_get_credentials)
         self.auth_provider = self._auth(self.credentials,
                                         fake_identity.FAKE_AUTH_URL)
 
@@ -118,8 +118,8 @@
 
     def setUp(self):
         super(TestKeystoneV2AuthProvider, self).setUp()
-        self.stubs.Set(v2_client.TokenClient, 'raw_request',
-                       fake_identity._fake_v2_response)
+        self.patchobject(v2_client.TokenClient, 'raw_request',
+                         fake_identity._fake_v2_response)
         self.target_url = 'test_api'
 
     def _get_fake_identity(self):
@@ -433,8 +433,8 @@
 
     def setUp(self):
         super(TestKeystoneV3AuthProvider, self).setUp()
-        self.stubs.Set(v3_client.V3TokenClient, 'raw_request',
-                       fake_identity._fake_v3_response)
+        self.patchobject(v3_client.V3TokenClient, 'raw_request',
+                         fake_identity._fake_v3_response)
 
     def _get_fake_identity(self):
         return fake_identity.IDENTITY_V3_RESPONSE['token']
diff --git a/tempest/tests/lib/test_credentials.py b/tempest/tests/lib/test_credentials.py
index 791fbb5..ca3baa1 100644
--- a/tempest/tests/lib/test_credentials.py
+++ b/tempest/tests/lib/test_credentials.py
@@ -19,7 +19,7 @@
 from tempest.lib import exceptions
 from tempest.lib.services.identity.v2 import token_client as v2_client
 from tempest.lib.services.identity.v3 import token_client as v3_client
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_identity
 
 
@@ -72,8 +72,8 @@
 
     def setUp(self):
         super(KeystoneV2CredentialsTests, self).setUp()
-        self.stubs.Set(self.tokenclient_class, 'raw_request',
-                       self.identity_response)
+        self.patchobject(self.tokenclient_class, 'raw_request',
+                         self.identity_response)
 
     def _verify_credentials(self, credentials_class, creds_dict, filled=True):
         creds = auth.get_credentials(fake_identity.FAKE_AUTH_URL,
diff --git a/tempest/tests/lib/test_decorators.py b/tempest/tests/lib/test_decorators.py
index 07b577c..f3a4e9c 100644
--- a/tempest/tests/lib/test_decorators.py
+++ b/tempest/tests/lib/test_decorators.py
@@ -13,13 +13,12 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 import testtools
 
 from tempest.lib import base as test
+from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestSkipBecauseDecorator(base.TestCase):
@@ -78,13 +77,13 @@
         return foo
 
     def test_positive(self):
-        _id = str(uuid.uuid4())
+        _id = data_utils.rand_uuid()
         foo = self._test_helper(_id)
         self.assertIn('id-%s' % _id, getattr(foo, '__testtools_attrs'))
         self.assertTrue(foo.__doc__.startswith('Test idempotent id: %s' % _id))
 
     def test_positive_without_doc(self):
-        _id = str(uuid.uuid4())
+        _id = data_utils.rand_uuid()
         foo = self._test_helper_without_doc(_id)
         self.assertTrue(foo.__doc__.startswith('Test idempotent id: %s' % _id))
 
diff --git a/tempest/tests/lib/test_rest_client.py b/tempest/tests/lib/test_rest_client.py
index 90651b0..2959294 100644
--- a/tempest/tests/lib/test_rest_client.py
+++ b/tempest/tests/lib/test_rest_client.py
@@ -22,7 +22,7 @@
 from tempest.lib.common import http
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 from tempest.tests.lib import fake_auth_provider
 from tempest.tests.lib import fake_http
 import tempest.tests.utils as utils
@@ -37,9 +37,7 @@
         self.fake_auth_provider = fake_auth_provider.FakeAuthProvider()
         self.rest_client = rest_client.RestClient(
             self.fake_auth_provider, None, None)
-        self.stubs.Set(http.ClosingHttp, 'request',
-                       self.fake_http.request)
-
+        self.patchobject(http.ClosingHttp, 'request', self.fake_http.request)
         self.useFixture(mockpatch.PatchObject(self.rest_client,
                                               '_log_request'))
 
diff --git a/tempest/tests/lib/test_ssh.py b/tempest/tests/lib/test_ssh.py
index f6efd47..b07f6bc 100644
--- a/tempest/tests/lib/test_ssh.py
+++ b/tempest/tests/lib/test_ssh.py
@@ -21,7 +21,7 @@
 
 from tempest.lib.common import ssh
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 import tempest.tests.utils as utils
 
 
@@ -141,8 +141,6 @@
     def test_exec_command(self):
         chan_mock, poll_mock, select_mock = (
             self._set_mocks_for_select([[1, 0, 0]], True))
-        closed_prop = mock.PropertyMock(return_value=True)
-        type(chan_mock).closed = closed_prop
 
         chan_mock.recv_exit_status.return_value = 0
         chan_mock.recv.return_value = b''
@@ -164,7 +162,6 @@
         chan_mock.recv_stderr_ready.assert_called_once_with()
         chan_mock.recv_stderr.assert_called_once_with(1024)
         chan_mock.recv_exit_status.assert_called_once_with()
-        closed_prop.assert_called_once_with()
 
     def _set_mocks_for_select(self, poll_data, ito_value=False):
         gsc_mock = self.patch('tempest.lib.common.ssh.Client.'
@@ -184,7 +181,7 @@
         gsc_mock.return_value = client_mock
         ito_mock.return_value = ito_value
         client_mock.get_transport.return_value = tran_mock
-        tran_mock.open_session.return_value = chan_mock
+        tran_mock.open_session().__enter__.return_value = chan_mock
         if isinstance(poll_data[0], list):
             poll_mock.poll.side_effect = poll_data
         else:
@@ -242,7 +239,7 @@
 
         gsc_mock.return_value = client_mock
         client_mock.get_transport.return_value = tran_mock
-        tran_mock.open_session.return_value = chan_mock
+        tran_mock.open_session().__enter__.return_value = chan_mock
         chan_mock.recv_exit_status.return_value = 0
 
         std_out_mock = mock.MagicMock(StringIO)
diff --git a/tempest/tests/lib/test_tempest_lib.py b/tempest/tests/lib/test_tempest_lib.py
index 9731e96..d70e53d 100644
--- a/tempest/tests/lib/test_tempest_lib.py
+++ b/tempest/tests/lib/test_tempest_lib.py
@@ -19,7 +19,7 @@
 Tests for `tempest.lib` module.
 """
 
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestTempest_lib(base.TestCase):
diff --git a/tempest/tests/negative/test_negative_auto_test.py b/tempest/tests/negative/test_negative_auto_test.py
index c666bd3..44ce567 100644
--- a/tempest/tests/negative/test_negative_auto_test.py
+++ b/tempest/tests/negative/test_negative_auto_test.py
@@ -15,8 +15,8 @@
 
 from tempest import config
 import tempest.test as test
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestNegativeAutoTest(base.TestCase):
@@ -37,7 +37,8 @@
     def setUp(self):
         super(TestNegativeAutoTest, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def _check_prop_entries(self, result, entry):
         entries = [a for a in result if entry in a[0]]
diff --git a/tempest/tests/negative/test_negative_generators.py b/tempest/tests/negative/test_negative_generators.py
index e0d7f42..78fd80d 100644
--- a/tempest/tests/negative/test_negative_generators.py
+++ b/tempest/tests/negative/test_negative_generators.py
@@ -22,7 +22,7 @@
 from tempest.common.generator import base_generator
 from tempest.common.generator import negative_generator
 from tempest.common.generator import valid_generator
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestNegativeBasicGenerator(base.TestCase):
diff --git a/tempest/tests/stress/test_stress.py b/tempest/tests/stress/test_stress.py
index a35b4d7..dfe0291 100644
--- a/tempest/tests/stress/test_stress.py
+++ b/tempest/tests/stress/test_stress.py
@@ -18,7 +18,7 @@
 
 from oslo_log import log as logging
 from tempest.lib import exceptions
-from tempest.tests.lib import base
+from tempest.tests import base
 
 LOG = logging.getLogger(__name__)
 
diff --git a/tempest/tests/test_base_test.py b/tempest/tests/test_base_test.py
index 9ffb7a1..dc355b4 100644
--- a/tempest/tests/test_base_test.py
+++ b/tempest/tests/test_base_test.py
@@ -19,8 +19,8 @@
 from tempest.common import fixed_network
 from tempest import config
 from tempest import test
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestBaseTestCase(base.TestCase):
diff --git a/tempest/tests/test_decorators.py b/tempest/tests/test_decorators.py
index 4c9a3b7..7c9579b 100644
--- a/tempest/tests/test_decorators.py
+++ b/tempest/tests/test_decorators.py
@@ -12,8 +12,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-import uuid
-
 import mock
 from oslo_config import cfg
 from oslotest import mockpatch
@@ -21,16 +19,18 @@
 
 from tempest import config
 from tempest import exceptions
+from tempest.lib.common.utils import data_utils
 from tempest import test
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class BaseDecoratorsTest(base.TestCase):
     def setUp(self):
         super(BaseDecoratorsTest, self).setUp()
         self.config_fixture = self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
 
 class TestAttrDecorator(BaseDecoratorsTest):
@@ -79,13 +79,13 @@
         return foo
 
     def test_positive(self):
-        _id = str(uuid.uuid4())
+        _id = data_utils.rand_uuid()
         foo = self._test_helper(_id)
         self.assertIn('id-%s' % _id, getattr(foo, '__testtools_attrs'))
         self.assertTrue(foo.__doc__.startswith('Test idempotent id: %s' % _id))
 
     def test_positive_without_doc(self):
-        _id = str(uuid.uuid4())
+        _id = data_utils.rand_uuid()
         foo = self._test_helper_without_doc(_id)
         self.assertTrue(foo.__doc__.startswith('Test idempotent id: %s' % _id))
 
diff --git a/tempest/tests/test_glance_http.py b/tempest/tests/test_glance_http.py
index fdbc2d2..768cd05 100644
--- a/tempest/tests/test_glance_http.py
+++ b/tempest/tests/test_glance_http.py
@@ -22,8 +22,8 @@
 
 from tempest.common import glance_http
 from tempest import exceptions
+from tempest.tests import base
 from tempest.tests import fake_auth_provider
-from tempest.tests.lib import base
 from tempest.tests.lib import fake_http
 
 
diff --git a/tempest/tests/test_hacking.py b/tempest/tests/test_hacking.py
index 6b3aa0d..aba2aab 100644
--- a/tempest/tests/test_hacking.py
+++ b/tempest/tests/test_hacking.py
@@ -13,7 +13,7 @@
 #    under the License.
 
 from tempest.hacking import checks
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class HackingTestCase(base.TestCase):
diff --git a/tempest/tests/test_list_tests.py b/tempest/tests/test_list_tests.py
index 69527b1..38d4c5c 100644
--- a/tempest/tests/test_list_tests.py
+++ b/tempest/tests/test_list_tests.py
@@ -17,7 +17,7 @@
 import six
 import subprocess
 
-from tempest.tests.lib import base
+from tempest.tests import base
 
 
 class TestTestList(base.TestCase):
diff --git a/tempest/tests/test_microversions.py b/tempest/tests/test_microversions.py
index 1ac1232..173accb 100644
--- a/tempest/tests/test_microversions.py
+++ b/tempest/tests/test_microversions.py
@@ -18,8 +18,8 @@
 from tempest.api.compute import base as compute_base
 from tempest import config
 from tempest.lib import exceptions
+from tempest.tests import base
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class VersionTestNoneTolatest(compute_base.BaseV2ComputeTest):
@@ -57,8 +57,8 @@
     def setUp(self):
         super(TestMicroversionsTestsClass, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate',
-                       fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
 
     def _test_version(self, cfg_min, cfg_max,
                       expected_pass_tests,
diff --git a/tempest/tests/test_negative_rest_client.py b/tempest/tests/test_negative_rest_client.py
index a1b5f0e..9d9c20f 100644
--- a/tempest/tests/test_negative_rest_client.py
+++ b/tempest/tests/test_negative_rest_client.py
@@ -20,9 +20,9 @@
 
 from tempest.common import negative_rest_client
 from tempest import config
+from tempest.tests import base
 from tempest.tests import fake_auth_provider
 from tempest.tests import fake_config
-from tempest.tests.lib import base
 
 
 class TestNegativeRestClient(base.TestCase):
@@ -32,7 +32,8 @@
     def setUp(self):
         super(TestNegativeRestClient, self).setUp()
         self.useFixture(fake_config.ConfigFixture())
-        self.stubs.Set(config, 'TempestConfigPrivate', fake_config.FakePrivate)
+        self.patchobject(config, 'TempestConfigPrivate',
+                         fake_config.FakePrivate)
         self.negative_rest_client = negative_rest_client.NegativeRestClient(
             fake_auth_provider.FakeAuthProvider(), None)
         self.useFixture(mockpatch.PatchObject(self.negative_rest_client,
diff --git a/tempest/tests/test_tempest_plugin.py b/tempest/tests/test_tempest_plugin.py
index f66dfc8..c07e98c 100644
--- a/tempest/tests/test_tempest_plugin.py
+++ b/tempest/tests/test_tempest_plugin.py
@@ -14,8 +14,8 @@
 #    under the License.
 
 from tempest.test_discover import plugins
+from tempest.tests import base
 from tempest.tests import fake_tempest_plugin as fake_plugin
-from tempest.tests.lib import base
 
 
 class TestPluginDiscovery(base.TestCase):
diff --git a/tempest/tests/test_wrappers.py b/tempest/tests/test_wrappers.py
index edb9061..a4ef699 100644
--- a/tempest/tests/test_wrappers.py
+++ b/tempest/tests/test_wrappers.py
@@ -19,7 +19,7 @@
 
 import six
 
-from tempest.tests.lib import base
+from tempest.tests import base
 
 DEVNULL = open(os.devnull, 'wb')
 
diff --git a/test-requirements.txt b/test-requirements.txt
index bb4b27f..9ef956a 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -7,7 +7,6 @@
 python-subunit>=0.0.18 # Apache-2.0/BSD
 oslosphinx!=3.4.0,>=2.5.0 # Apache-2.0
 reno>=1.6.2 # Apache2
-mox>=0.5.3 # Apache-2.0
 mock>=1.2 # BSD
 coverage>=3.6 # Apache-2.0
 oslotest>=1.10.0 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 28dfe8b..e371406 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,23 +5,27 @@
 
 [tempestenv]
 sitepackages = False
-setenv = VIRTUAL_ENV={envdir}
-         OS_TEST_PATH=./tempest/test_discover
-deps = setuptools
-       -r{toxinidir}/requirements.txt
+setenv =
+    VIRTUAL_ENV={envdir}
+    OS_TEST_PATH=./tempest/test_discover
+deps =
+    setuptools
+    -r{toxinidir}/requirements.txt
 
 [testenv]
-setenv = VIRTUAL_ENV={envdir}
-         OS_TEST_PATH=./tempest/tests
+setenv =
+    VIRTUAL_ENV={envdir}
+    OS_TEST_PATH=./tempest/tests
 passenv = OS_STDOUT_CAPTURE OS_STDERR_CAPTURE OS_TEST_TIMEOUT OS_TEST_LOCK_PATH OS_TEST_PATH TEMPEST_CONFIG TEMPEST_CONFIG_DIR http_proxy HTTP_PROXY https_proxy HTTPS_PROXY no_proxy NO_PROXY
 usedevelop = True
 install_command = pip install -U {opts} {packages}
 whitelist_externals = *
-deps = -r{toxinidir}/requirements.txt
-       -r{toxinidir}/test-requirements.txt
+deps =
+    -r{toxinidir}/requirements.txt
+    -r{toxinidir}/test-requirements.txt
 commands =
-         find . -type f -name "*.pyc" -delete
-         bash tools/pretty_tox.sh '{posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox.sh '{posargs}'
 
 [testenv:genconfig]
 commands = oslo-config-generator --config-file etc/config-generator.tempest.conf
@@ -33,22 +37,35 @@
 [testenv:all]
 sitepackages = {[tempestenv]sitepackages}
 # 'all' includes slow tests
-setenv = {[tempestenv]setenv}
-         OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:1200}
+setenv =
+    {[tempestenv]setenv}
+    OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:1200}
 deps = {[tempestenv]deps}
 commands =
-  find . -type f -name "*.pyc" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox.sh '{posargs}'
+
+[testenv:ostestr]
+sitepackages = {[tempestenv]sitepackages}
+# 'all' includes slow tests
+setenv =
+    {[tempestenv]setenv}
+    OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:1200}
+deps = {[tempestenv]deps}
+commands =
+    find . -type f -name "*.pyc" -delete
+    ostestr {posargs}
 
 [testenv:all-plugin]
 sitepackages = True
 # 'all' includes slow tests
-setenv = {[tempestenv]setenv}
-         OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:1200}
+setenv =
+    {[tempestenv]setenv}
+    OS_TEST_TIMEOUT={env:OS_TEST_TIMEOUT:1200}
 deps = {[tempestenv]deps}
 commands =
-  find . -type f -name "*.pyc" -delete
-  bash tools/pretty_tox.sh '{posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox.sh '{posargs}'
 
 [testenv:full]
 sitepackages = {[tempestenv]sitepackages}
@@ -57,8 +74,8 @@
 # The regex below is used to select which tests to run and exclude the slow tag:
 # See the testrepository bug: https://bugs.launchpad.net/testrepository/+bug/1208610
 commands =
-  find . -type f -name "*.pyc" -delete
-  bash tools/pretty_tox.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty)) {posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty)) {posargs}'
 
 [testenv:full-serial]
 sitepackages = {[tempestenv]sitepackages}
@@ -67,16 +84,16 @@
 # The regex below is used to select which tests to run and exclude the slow tag:
 # See the testrepository bug: https://bugs.launchpad.net/testrepository/+bug/1208610
 commands =
-  find . -type f -name "*.pyc" -delete
-  bash tools/pretty_tox_serial.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty)) {posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox_serial.sh '(?!.*\[.*\bslow\b.*\])(^tempest\.(api|scenario|thirdparty)) {posargs}'
 
 [testenv:smoke]
 sitepackages = {[tempestenv]sitepackages}
 setenv = {[tempestenv]setenv}
 deps = {[tempestenv]deps}
 commands =
-  find . -type f -name "*.pyc" -delete
-   bash tools/pretty_tox.sh '\[.*\bsmoke\b.*\] {posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox.sh '\[.*\bsmoke\b.*\] {posargs}'
 
 [testenv:smoke-serial]
 sitepackages = {[tempestenv]sitepackages}
@@ -86,8 +103,8 @@
 # https://bugs.launchpad.net/tempest/+bug/1216076 so the neutron smoke
 # job would fail if we moved it to parallel.
 commands =
-  find . -type f -name "*.pyc" -delete
-   bash tools/pretty_tox_serial.sh '\[.*\bsmoke\b.*\] {posargs}'
+    find . -type f -name "*.pyc" -delete
+    bash tools/pretty_tox_serial.sh '\[.*\bsmoke\b.*\] {posargs}'
 
 [testenv:stress]
 sitepackages = {[tempestenv]sitepackages}
@@ -101,16 +118,16 @@
 
 [testenv:docs]
 commands =
-   python setup.py build_sphinx {posargs}
+    python setup.py build_sphinx {posargs}
 
 [testenv:pep8]
 commands =
-   flake8 {posargs}
-   check-uuid
+    flake8 {posargs}
+    check-uuid
 
 [testenv:uuidgen]
 commands =
-   check-uuid --fix
+    check-uuid --fix
 
 [hacking]
 local-check-factory = tempest.hacking.checks.factory