diff --git a/tempest/api/volume/admin/v2/test_backends_capabilities.py b/tempest/api/volume/admin/test_backends_capabilities.py
similarity index 100%
rename from tempest/api/volume/admin/v2/test_backends_capabilities.py
rename to tempest/api/volume/admin/test_backends_capabilities.py
diff --git a/tempest/api/volume/admin/v2/test_snapshot_manage.py b/tempest/api/volume/admin/test_snapshot_manage.py
similarity index 100%
rename from tempest/api/volume/admin/v2/test_snapshot_manage.py
rename to tempest/api/volume/admin/test_snapshot_manage.py
diff --git a/tempest/api/volume/admin/v3/test_user_messages.py b/tempest/api/volume/admin/test_user_messages.py
similarity index 96%
rename from tempest/api/volume/admin/v3/test_user_messages.py
rename to tempest/api/volume/admin/test_user_messages.py
index 991397a..20c3538 100755
--- a/tempest/api/volume/admin/v3/test_user_messages.py
+++ b/tempest/api/volume/admin/test_user_messages.py
@@ -13,7 +13,7 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from tempest.api.volume.v3 import base
+from tempest.api.volume import base
 from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
@@ -33,7 +33,8 @@
     'links']
 
 
-class UserMessagesTest(base.VolumesV3AdminTest):
+class UserMessagesTest(base.BaseVolumeAdminTest):
+    _api_version = 3
     min_microversion = '3.3'
     max_microversion = 'latest'
 
diff --git a/tempest/api/volume/admin/v2/test_volume_pools.py b/tempest/api/volume/admin/test_volume_pools.py
similarity index 100%
rename from tempest/api/volume/admin/v2/test_volume_pools.py
rename to tempest/api/volume/admin/test_volume_pools.py
diff --git a/tempest/api/volume/admin/v2/test_volume_type_access.py b/tempest/api/volume/admin/test_volume_type_access.py
similarity index 100%
rename from tempest/api/volume/admin/v2/test_volume_type_access.py
rename to tempest/api/volume/admin/test_volume_type_access.py
diff --git a/tempest/api/volume/admin/v2/test_volumes_list.py b/tempest/api/volume/admin/test_volumes_list.py
similarity index 100%
rename from tempest/api/volume/admin/v2/test_volumes_list.py
rename to tempest/api/volume/admin/test_volumes_list.py
diff --git a/tempest/api/volume/admin/v2/__init__.py b/tempest/api/volume/admin/v2/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/tempest/api/volume/admin/v2/__init__.py
+++ /dev/null
diff --git a/tempest/api/volume/admin/v3/__init__.py b/tempest/api/volume/admin/v3/__init__.py
deleted file mode 100644
index e69de29..0000000
--- a/tempest/api/volume/admin/v3/__init__.py
+++ /dev/null
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index 2f719c8..0cd5ec7 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -13,9 +13,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+from tempest.api.volume import api_microversion_fixture
 from tempest.common import compute
 from tempest.common import waiters
 from tempest import config
+from tempest.lib.common import api_version_utils
 from tempest.lib.common.utils import data_utils
 from tempest.lib.common.utils import test_utils
 from tempest.lib import exceptions
@@ -24,7 +26,8 @@
 CONF = config.CONF
 
 
-class BaseVolumeTest(tempest.test.BaseTestCase):
+class BaseVolumeTest(api_version_utils.BaseMicroversionTest,
+                     tempest.test.BaseTestCase):
     """Base test case class for all Cinder API tests."""
 
     _api_version = 2
@@ -49,6 +52,10 @@
             msg = ("Invalid Cinder API version (%s)" % cls._api_version)
             raise exceptions.InvalidConfiguration(msg)
 
+        api_version_utils.check_skip_with_microversion(
+            cls.min_microversion, cls.max_microversion,
+            CONF.volume.min_microversion, CONF.volume.max_microversion)
+
     @classmethod
     def setup_credentials(cls):
         cls.set_network_resources()
@@ -68,10 +75,21 @@
         cls.availability_zone_client = (
             cls.os.volume_v2_availability_zone_client)
         cls.volume_limits_client = cls.os.volume_v2_limits_client
+        cls.messages_client = cls.os.volume_v3_messages_client
+        cls.versions_client = cls.os.volume_v3_versions_client
+
+    def setUp(self):
+        super(BaseVolumeTest, self).setUp()
+        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
+            self.request_microversion))
 
     @classmethod
     def resource_setup(cls):
         super(BaseVolumeTest, cls).resource_setup()
+        cls.request_microversion = (
+            api_version_utils.select_request_microversion(
+                cls.min_microversion,
+                CONF.volume.min_microversion))
 
         cls.snapshots = []
         cls.volumes = []
@@ -240,6 +258,8 @@
             cls.os_adm.volume_capabilities_v2_client
         cls.admin_scheduler_stats_client = \
             cls.os_adm.volume_scheduler_stats_v2_client
+        cls.admin_messages_client = cls.os_adm.volume_v3_messages_client
+        cls.admin_volume_types_client = cls.os_adm.volume_types_v2_client
 
     @classmethod
     def resource_setup(cls):
diff --git a/tempest/api/volume/v3/base.py b/tempest/api/volume/v3/base.py
deleted file mode 100644
index 7f76e6f..0000000
--- a/tempest/api/volume/v3/base.py
+++ /dev/null
@@ -1,66 +0,0 @@
-# Copyright 2016 Andrew Kerr
-# 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.
-from tempest.api.volume import api_microversion_fixture
-from tempest.api.volume import base
-from tempest import config
-from tempest.lib.common import api_version_utils
-
-CONF = config.CONF
-
-
-class VolumesV3Test(api_version_utils.BaseMicroversionTest,
-                    base.BaseVolumeTest):
-    """Base test case class for all v3 Cinder API tests."""
-
-    _api_version = 3
-
-    @classmethod
-    def skip_checks(cls):
-        super(VolumesV3Test, cls).skip_checks()
-        api_version_utils.check_skip_with_microversion(
-            cls.min_microversion, cls.max_microversion,
-            CONF.volume.min_microversion, CONF.volume.max_microversion)
-
-    @classmethod
-    def resource_setup(cls):
-        super(VolumesV3Test, cls).resource_setup()
-        cls.request_microversion = (
-            api_version_utils.select_request_microversion(
-                cls.min_microversion,
-                CONF.volume.min_microversion))
-
-    @classmethod
-    def setup_clients(cls):
-        super(VolumesV3Test, cls).setup_clients()
-        cls.messages_client = cls.os.volume_v3_messages_client
-        cls.versions_client = cls.os.volume_v3_versions_client
-
-    def setUp(self):
-        super(VolumesV3Test, self).setUp()
-        self.useFixture(api_microversion_fixture.APIMicroversionFixture(
-            self.request_microversion))
-
-
-class VolumesV3AdminTest(VolumesV3Test,
-                         base.BaseVolumeAdminTest):
-    """Base test case class for all v3 Volume Admin API tests."""
-
-    credentials = ['primary', 'admin']
-
-    @classmethod
-    def setup_clients(cls):
-        super(VolumesV3AdminTest, cls).setup_clients()
-        cls.admin_messages_client = cls.os_adm.volume_v3_messages_client
-        cls.admin_volume_types_client = cls.os_adm.volume_types_v2_client
diff --git a/tempest/api/volume/v3/test_versions.py b/tempest/api/volume/v3/test_versions.py
index 20f1657..76f2a99 100644
--- a/tempest/api/volume/v3/test_versions.py
+++ b/tempest/api/volume/v3/test_versions.py
@@ -12,12 +12,14 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
-from tempest.api.volume.v3 import base
+from tempest.api.volume import base
 from tempest.lib import decorators
 from tempest import test
 
 
-class VersionsTest(base.VolumesV3Test):
+class VersionsTest(base.BaseVolumeTest):
+
+    _api_version = 3
 
     @decorators.idempotent_id('77838fc4-b49b-4c64-9533-166762517369')
     @test.attr(type='smoke')
diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 3e5600c..9c83c99 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -261,16 +261,16 @@
         time.sleep(client.build_interval)
 
 
-def wait_for_interface_status(client, server, port_id, status):
+def wait_for_interface_status(client, server_id, port_id, status):
     """Waits for an interface to reach a given status."""
-    body = (client.show_interface(server, port_id)
+    body = (client.show_interface(server_id, port_id)
             ['interfaceAttachment'])
     interface_status = body['port_state']
     start = int(time.time())
 
     while(interface_status != status):
         time.sleep(client.build_interval)
-        body = (client.show_interface(server, port_id)
+        body = (client.show_interface(server_id, port_id)
                 ['interfaceAttachment'])
         interface_status = body['port_state']
 
diff --git a/tempest/lib/cmd/check_uuid.py b/tempest/lib/cmd/check_uuid.py
index eafde44..e911776 100755
--- a/tempest/lib/cmd/check_uuid.py
+++ b/tempest/lib/cmd/check_uuid.py
@@ -29,7 +29,7 @@
 DECORATOR_MODULE = 'decorators'
 DECORATOR_NAME = 'idempotent_id'
 DECORATOR_IMPORT = 'tempest.%s' % DECORATOR_MODULE
-IMPORT_LINE = 'from tempest import %s' % DECORATOR_MODULE
+IMPORT_LINE = 'from tempest.lib import %s' % DECORATOR_MODULE
 DECORATOR_TEMPLATE = "@%s.%s('%%s')" % (DECORATOR_MODULE,
                                         DECORATOR_NAME)
 UNIT_TESTS_EXCLUDE = 'tempest.tests'