diff --git a/releasenotes/notes/25/subunt-describe-call-verbose-arg-fix.yaml b/releasenotes/notes/25/subunt-describe-call-verbose-arg-fix.yaml
new file mode 100644
index 0000000..d2a644e
--- /dev/null
+++ b/releasenotes/notes/25/subunt-describe-call-verbose-arg-fix.yaml
@@ -0,0 +1,10 @@
+---
+fixes:
+  - |
+    Fixed bug #1890060. tempest subunit_describe_calls --verbose not working with Cliff CLI.
+    The subunit_describe_calls --verbose argument was a boolean and worked in the non Cliff CLI
+    which is now deprecated, but does not work with cliff since --verbase is a standard cliff
+    argument which is an int.  Since the tool is in lib directory we cannot change the interface,
+    so we add a new argument -a --all-stdout that will allow cliff CLI to support the
+    feature in subunnit_describe_calls to print request and response headers and bodies
+    to stdout.
\ No newline at end of file
diff --git a/releasenotes/notes/add-can-migrate-between-any-hosts-config-option-x8ah4f9737a28e9b.yaml b/releasenotes/notes/add-can-migrate-between-any-hosts-config-option-x8ah4f9737a28e9b.yaml
new file mode 100644
index 0000000..26fe01a
--- /dev/null
+++ b/releasenotes/notes/add-can-migrate-between-any-hosts-config-option-x8ah4f9737a28e9b.yaml
@@ -0,0 +1,9 @@
+---
+features:
+  - Add a new config option can_migrate_between_any_hosts in the
+    compute-feature-enabled section, which can be set to False for environment
+    with non homogeneous compute nodes, so that it can select a destination
+    host for migrating automatically, otherwise the testcase may fail
+    unexpectedly. e.g., if source host is with CPU "E5-2699 v4" and the
+    selected target host is with CPU "E5-2670 v3", the live-migration will
+    fail because of the downgrade issue.
diff --git a/tempest/api/compute/admin/test_live_migration.py b/tempest/api/compute/admin/test_live_migration.py
index 064949f..941315e 100644
--- a/tempest/api/compute/admin/test_live_migration.py
+++ b/tempest/api/compute/admin/test_live_migration.py
@@ -71,6 +71,10 @@
 
     def _live_migrate(self, server_id, target_host, state,
                       volume_backed=False):
+        # If target_host is None, check whether source host is different with
+        # the new host after migration.
+        if target_host is None:
+            source_host = self.get_host_for_server(server_id)
         self._migrate_server_to(server_id, target_host, volume_backed)
         waiters.wait_for_server_status(self.servers_client, server_id, state)
         migration_list = (self.admin_migration_client.list_migrations()
@@ -82,8 +86,12 @@
             if (live_migration['instance_uuid'] == server_id):
                 msg += "\n%s" % live_migration
         msg += "]"
-        self.assertEqual(target_host, self.get_host_for_server(server_id),
-                         msg)
+        if target_host is None:
+            self.assertNotEqual(source_host,
+                                self.get_host_for_server(server_id), msg)
+        else:
+            self.assertEqual(target_host, self.get_host_for_server(server_id),
+                             msg)
 
 
 class LiveMigrationTest(LiveMigrationTestBase):
@@ -105,7 +113,11 @@
         server_id = self.create_test_server(wait_until="ACTIVE",
                                             volume_backed=volume_backed)['id']
         source_host = self.get_host_for_server(server_id)
-        destination_host = self.get_host_other_than(server_id)
+        if not CONF.compute_feature_enabled.can_migrate_between_any_hosts:
+            # not to specify a host so that the scheduler will pick one
+            destination_host = None
+        else:
+            destination_host = self.get_host_other_than(server_id)
 
         if state == 'PAUSED':
             self.admin_servers_client.pause_server(server_id)
@@ -161,7 +173,11 @@
         """Test live migrating a server with volume attached"""
         server = self.create_test_server(wait_until="ACTIVE")
         server_id = server['id']
-        target_host = self.get_host_other_than(server_id)
+        if not CONF.compute_feature_enabled.can_migrate_between_any_hosts:
+            # not to specify a host so that the scheduler will pick one
+            target_host = None
+        else:
+            target_host = self.get_host_other_than(server_id)
 
         volume = self.create_volume()
 
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 7f62c64..990dd52 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -296,21 +296,32 @@
         for ip in ip_list:
             self.assertNotIn(ip_list[ip], map(lambda x: x['id'], servers))
 
-    @decorators.skip_because(bug="1540645")
     @decorators.idempotent_id('a905e287-c35e-42f2-b132-d02b09f3654a')
     def test_list_servers_filtered_by_ip_regex(self):
         """Filter the list of servers by part of server ip address"""
-        # Here should be listed all servers
         if not self.fixed_network_name:
             msg = 'fixed_network_name needs to be configured to run this test'
             raise self.skipException(msg)
-        self.s1 = self.client.show_server(self.s1['id'])['server']
-        addr_spec = self.s1['addresses'][self.fixed_network_name][0]
-        ip = addr_spec['addr'][0:-3]
+        # query addresses of the 3 servers
+        addrs = []
+        for s in [self.s1, self.s2, self.s3]:
+            s_show = self.client.show_server(s['id'])['server']
+            addr_spec = s_show['addresses'][self.fixed_network_name][0]
+            addrs.append(addr_spec['addr'])
+        # find common part of the 3 ip addresses
+        prefix = ''
+        addrs_len = [len(a) for a in addrs]
+        addrs_len.sort()
+        # iterate over the smallest length of an ip
+        for i in range(addrs_len[0]):
+            if not addrs[0][i] == addrs[1][i] == addrs[2][i]:
+                break
+            prefix += addrs[0][i]
+
         if addr_spec['version'] == 4:
-            params = {'ip': ip}
+            params = {'ip': prefix}
         else:
-            params = {'ip6': ip}
+            params = {'ip6': prefix}
         # capture all servers in case something goes wrong
         all_servers = self.client.list_servers(detail=True)
         body = self.client.list_servers(**params)
diff --git a/tempest/api/network/admin/test_ports.py b/tempest/api/network/admin/test_ports.py
index 51f2857..5f9f29f 100644
--- a/tempest/api/network/admin/test_ports.py
+++ b/tempest/api/network/admin/test_ports.py
@@ -48,6 +48,8 @@
                      "name": data_utils.rand_name(self.__class__.__name__)}
         body = self.admin_ports_client.create_port(**post_body)
         port = body['port']
+        self.addCleanup(self.admin_ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(
             test_utils.call_and_ignore_notfound_exc,
             self.admin_ports_client.delete_port, port['id'])
@@ -63,6 +65,8 @@
                      "name": data_utils.rand_name(self.__class__.__name__)}
         body = self.admin_ports_client.create_port(**post_body)
         port = body['port']
+        self.addCleanup(self.admin_ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(
             test_utils.call_and_ignore_notfound_exc,
             self.admin_ports_client.delete_port, port['id'])
@@ -82,6 +86,8 @@
                      "name": data_utils.rand_name(self.__class__.__name__)}
         body = self.admin_ports_client.create_port(**post_body)
         port = body['port']
+        self.addCleanup(self.admin_ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(
             test_utils.call_and_ignore_notfound_exc,
             self.admin_ports_client.delete_port, port['id'])
@@ -110,6 +116,8 @@
             name=data_utils.rand_name(self.__class__.__name__),
             network_id=self.network['id'])
         port = body['port']
+        self.addCleanup(self.admin_ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.admin_ports_client.delete_port, port['id'])
         body = self.admin_ports_client.show_port(port['id'])
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index c6d049a..479578d 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -77,6 +77,8 @@
             name=data_utils.rand_name(self.__class__.__name__))
         port = body['port']
         # Schedule port deletion with verification upon test completion
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(self._delete_port, port['id'])
         self.assertTrue(port['admin_state_up'])
         # Verify port update
@@ -99,6 +101,10 @@
         created_ports = body['ports']
         port1 = created_ports[0]
         port2 = created_ports[1]
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port1['id'])
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port2['id'])
         self.addCleanup(self._delete_port, port1['id'])
         self.addCleanup(self._delete_port, port2['id'])
         self.assertEqual(port1['network_id'], network1['id'])
@@ -126,6 +132,8 @@
         body = self.ports_client.create_port(
             network_id=net_id,
             name=data_utils.rand_name(self.__class__.__name__))
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        body['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, body['port']['id'])
         port = body['port']
@@ -183,11 +191,15 @@
         port_1 = self.ports_client.create_port(
             network_id=network['id'],
             name=data_utils.rand_name(self.__class__.__name__))
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port_1['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port_1['port']['id'])
         port_2 = self.ports_client.create_port(
             network_id=network['id'],
             name=data_utils.rand_name(self.__class__.__name__))
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port_2['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port_2['port']['id'])
         # List ports filtered by fixed_ips
@@ -241,6 +253,8 @@
             network_id=network['id'],
             name=data_utils.rand_name(self.__class__.__name__),
             fixed_ips=fixed_ips)
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port_1['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port_1['port']['id'])
         fixed_ips = [{'subnet_id': subnet['id'], 'ip_address': ip_address_2}]
@@ -248,6 +262,8 @@
             network_id=network['id'],
             name=data_utils.rand_name(self.__class__.__name__),
             fixed_ips=fixed_ips)
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port_2['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port_2['port']['id'])
 
@@ -307,6 +323,8 @@
         # Add router interface to port created above
         self.routers_client.add_router_interface(router['id'],
                                                  port_id=port['port']['id'])
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.routers_client.remove_router_interface,
                         router['id'], port_id=port['port']['id'])
@@ -343,6 +361,8 @@
         # Create a port with multiple IP addresses
         port = self.create_port(network,
                                 fixed_ips=fixed_ips)
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port['id'])
         self.assertEqual(2, len(port['fixed_ips']))
@@ -386,6 +406,8 @@
             "admin_state_up": True,
             "fixed_ips": fixed_ip_1}
         body = self.ports_client.create_port(**post_body)
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        body['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, body['port']['id'])
         port = body['port']
@@ -456,6 +478,8 @@
             network_id=self.network['id'],
             mac_address=free_mac_address,
             name=data_utils.rand_name(self.__class__.__name__))
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        body['port']['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, body['port']['id'])
         port = body['port']
@@ -474,6 +498,8 @@
         network = self._create_network()
         self._create_subnet(network)
         port = self.create_port(network, security_groups=[])
+        self.addCleanup(self.ports_client.wait_for_resource_deletion,
+                        port['id'])
         self.addCleanup(test_utils.call_and_ignore_notfound_exc,
                         self.ports_client.delete_port, port['id'])
         self.assertIsNotNone(port['security_groups'])
diff --git a/tempest/api/volume/admin/test_volume_services.py b/tempest/api/volume/admin/test_volume_services.py
index 293af81..1d12a73 100644
--- a/tempest/api/volume/admin/test_volume_services.py
+++ b/tempest/api/volume/admin/test_volume_services.py
@@ -39,12 +39,14 @@
 
     @decorators.idempotent_id('e0218299-0a59-4f43-8b2b-f1c035b3d26d')
     def test_list_services(self):
+        """Test listing volume services"""
         services = (self.admin_volume_services_client.list_services()
                     ['services'])
         self.assertNotEmpty(services)
 
     @decorators.idempotent_id('63a3e1ca-37ee-4983-826d-83276a370d25')
     def test_get_service_by_service_binary_name(self):
+        """Test getting volume service by binary name"""
         services = (self.admin_volume_services_client.list_services(
             binary=self.binary_name)['services'])
         self.assertNotEmpty(services)
@@ -53,6 +55,7 @@
 
     @decorators.idempotent_id('178710e4-7596-4e08-9333-745cb8bc4f8d')
     def test_get_service_by_host_name(self):
+        """Test getting volume service by service host name"""
         services_on_host = [service for service in self.services if
                             _get_host(service['host']) == self.host_name]
 
@@ -69,6 +72,7 @@
 
     @decorators.idempotent_id('67ec6902-f91d-4dec-91fa-338523208bbc')
     def test_get_service_by_volume_host_name(self):
+        """Test getting volume service by volume host name"""
         volume_id = self.create_volume()['id']
         volume = self.admin_volume_client.show_volume(volume_id)['volume']
         hostname = _get_host(volume['os-vol-host-attr:host'])
@@ -83,7 +87,7 @@
 
     @decorators.idempotent_id('ffa6167c-4497-4944-a464-226bbdb53908')
     def test_get_service_by_service_and_host_name(self):
-
+        """Test getting volume service by binary name and host name"""
         services = (self.admin_volume_services_client.list_services(
             host=self.host_name, binary=self.binary_name))['services']
 
diff --git a/tempest/api/volume/admin/test_volume_type_access.py b/tempest/api/volume/admin/test_volume_type_access.py
index b64face..55ec428 100644
--- a/tempest/api/volume/admin/test_volume_type_access.py
+++ b/tempest/api/volume/admin/test_volume_type_access.py
@@ -24,11 +24,13 @@
 
 
 class VolumeTypesAccessTest(base.BaseVolumeAdminTest):
+    """Test volume type access"""
 
     credentials = ['primary', 'alt', 'admin']
 
     @decorators.idempotent_id('d4dd0027-835f-4554-a6e5-50903fb79184')
     def test_volume_type_access_add(self):
+        """Test adding volume type access for non-admin project"""
         # Creating a NON public volume type
         params = {'os-volume-type-access:is_public': False}
         volume_type = self.create_volume_type(**params)
@@ -52,6 +54,7 @@
 
     @decorators.idempotent_id('5220eb28-a435-43ce-baaf-ed46f0e95159')
     def test_volume_type_access_list(self):
+        """Test listing volume type access"""
         # Creating a NON public volume type
         params = {'os-volume-type-access:is_public': False}
         volume_type = self.create_volume_type(**params)
diff --git a/tempest/api/volume/admin/test_volume_types_extra_specs.py b/tempest/api/volume/admin/test_volume_types_extra_specs.py
index 730acdf..852aa93 100644
--- a/tempest/api/volume/admin/test_volume_types_extra_specs.py
+++ b/tempest/api/volume/admin/test_volume_types_extra_specs.py
@@ -19,6 +19,7 @@
 
 
 class VolumeTypesExtraSpecsTest(base.BaseVolumeAdminTest):
+    """Test volume type extra specs"""
 
     @classmethod
     def resource_setup(cls):
@@ -27,7 +28,7 @@
 
     @decorators.idempotent_id('b42923e9-0452-4945-be5b-d362ae533e60')
     def test_volume_type_extra_specs_list(self):
-        # List Volume types extra specs.
+        """Test listing volume type extra specs"""
         extra_specs = {"spec1": "val1"}
         body = self.admin_volume_types_client.create_volume_type_extra_specs(
             self.volume_type['id'], extra_specs)['extra_specs']
@@ -40,7 +41,7 @@
 
     @decorators.idempotent_id('0806db36-b4a0-47a1-b6f3-c2e7f194d017')
     def test_volume_type_extra_specs_update(self):
-        # Update volume type extra specs
+        """Test updating volume type extra specs"""
         extra_specs = {"spec2": "val1"}
         body = self.admin_volume_types_client.create_volume_type_extra_specs(
             self.volume_type['id'], extra_specs)['extra_specs']
@@ -74,7 +75,7 @@
 
     @decorators.idempotent_id('d4772798-601f-408a-b2a5-29e8a59d1220')
     def test_volume_type_extra_spec_create_get_delete(self):
-        # Create/Get/Delete volume type extra spec.
+        """Test Create/Get/Delete volume type extra specs"""
         spec_key = "spec3"
         extra_specs = {spec_key: "val1"}
         body = self.admin_volume_types_client.create_volume_type_extra_specs(
diff --git a/tempest/api/volume/admin/test_volumes_backup.py b/tempest/api/volume/admin/test_volumes_backup.py
index 45060d0..bd4b3fa 100644
--- a/tempest/api/volume/admin/test_volumes_backup.py
+++ b/tempest/api/volume/admin/test_volumes_backup.py
@@ -67,11 +67,8 @@
         # Export Backup
         export_backup = (self.admin_backups_client.export_backup(backup['id'])
                          ['backup-record'])
-        self.assertIn('backup_service', export_backup)
-        self.assertIn('backup_url', export_backup)
         self.assertTrue(export_backup['backup_service'].startswith(
                         'cinder.backup.drivers'))
-        self.assertIsNotNone(export_backup['backup_url'])
 
         # NOTE(geguileo): Backups are imported with the same backup id
         # (important for incremental backups among other things), so we cannot
@@ -92,7 +89,6 @@
         # deletions will delete data from the backup back-end because they
         # were both pointing to the same backend data.
         self.addCleanup(self._delete_backup, new_id)
-        self.assertIn("id", import_backup)
         self.assertEqual(new_id, import_backup['id'])
         waiters.wait_for_volume_resource_status(self.admin_backups_client,
                                                 import_backup['id'],
diff --git a/tempest/api/volume/admin/test_volumes_list.py b/tempest/api/volume/admin/test_volumes_list.py
index 6ce4a85..c3229f0 100644
--- a/tempest/api/volume/admin/test_volumes_list.py
+++ b/tempest/api/volume/admin/test_volumes_list.py
@@ -24,6 +24,7 @@
 
 
 class VolumesListAdminTestJSON(base.BaseVolumeAdminTest):
+    """Test listing volumes with admin privilege"""
 
     @classmethod
     def resource_setup(cls):
@@ -41,7 +42,7 @@
 
     @decorators.idempotent_id('5866286f-3290-4cfd-a414-088aa6cdc469')
     def test_volume_list_param_tenant(self):
-        # Test to list volumes from single tenant
+        """Test admin can list volumes belonging to specified project"""
         # Create a volume in admin tenant
         adm_vol = self.admin_volume_client.create_volume(
             size=CONF.volume.volume_size)['volume']
diff --git a/tempest/api/volume/test_availability_zone.py b/tempest/api/volume/test_availability_zone.py
index 0b6ee38..39369be 100644
--- a/tempest/api/volume/test_availability_zone.py
+++ b/tempest/api/volume/test_availability_zone.py
@@ -22,7 +22,7 @@
 
     @decorators.idempotent_id('01f1ae88-eba9-4c6b-a011-6f7ace06b725')
     def test_get_availability_zone_list(self):
-        # List of availability zone
+        """Test listing volume available zones"""
         availability_zone = (
             self.availability_zone_client.list_availability_zones()
             ['availabilityZoneInfo'])
diff --git a/tempest/api/volume/test_extensions.py b/tempest/api/volume/test_extensions.py
index 39ce00c..acd9ca2 100644
--- a/tempest/api/volume/test_extensions.py
+++ b/tempest/api/volume/test_extensions.py
@@ -26,10 +26,11 @@
 
 
 class ExtensionsTestJSON(base.BaseVolumeTest):
+    """Test volume extensions"""
 
     @decorators.idempotent_id('94607eb0-43a5-47ca-82aa-736b41bd2e2c')
     def test_list_extensions(self):
-        # List of all extensions
+        """Test listing volume extensions"""
         extensions = (self.volumes_extension_client.list_extensions()
                       ['extensions'])
         if not CONF.volume_feature_enabled.api_extensions:
diff --git a/tempest/api/volume/test_image_metadata.py b/tempest/api/volume/test_image_metadata.py
index 53b3acc..8f9bbd2 100644
--- a/tempest/api/volume/test_image_metadata.py
+++ b/tempest/api/volume/test_image_metadata.py
@@ -24,6 +24,7 @@
 
 
 class VolumesImageMetadata(base.BaseVolumeTest):
+    """Test volume image metadata"""
 
     @classmethod
     def skip_checks(cls):
@@ -41,6 +42,7 @@
     @decorators.idempotent_id('03efff0b-5c75-4822-8f10-8789ac15b13e')
     @utils.services('image')
     def test_update_show_delete_image_metadata(self):
+        """Test update/show/delete volume's image metadata"""
         # Update image metadata
         image_metadata = {'image_id': '5137a025-3c5f-43c1-bc64-5f41270040a5',
                           'image_name': 'image',
diff --git a/tempest/api/volume/test_snapshot_metadata.py b/tempest/api/volume/test_snapshot_metadata.py
index e6fe25d..ee1b5e5 100644
--- a/tempest/api/volume/test_snapshot_metadata.py
+++ b/tempest/api/volume/test_snapshot_metadata.py
@@ -23,6 +23,8 @@
 
 
 class SnapshotMetadataTestJSON(base.BaseVolumeTest):
+    """Test snapshot metadata"""
+
     @classmethod
     def skip_checks(cls):
         super(SnapshotMetadataTestJSON, cls).skip_checks()
@@ -45,6 +47,7 @@
 
     @decorators.idempotent_id('a2f20f99-e363-4584-be97-bc33afb1a56c')
     def test_crud_snapshot_metadata(self):
+        """Test create/get/update/delete snapshot metadata"""
         # Create metadata for the snapshot
         metadata = {"key1": "value1",
                     "key2": "value2",
@@ -82,7 +85,7 @@
 
     @decorators.idempotent_id('e8ff85c5-8f97-477f-806a-3ac364a949ed')
     def test_update_show_snapshot_metadata_item(self):
-        # Update metadata item for the snapshot
+        """Test update/show snapshot metadata item"""
         metadata = {"key1": "value1",
                     "key2": "value2",
                     "key3": "value3"}
diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index e42ea40..5b50bfa 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -25,6 +25,8 @@
 
 
 class VolumesActionsTest(base.BaseVolumeTest):
+    """Test volume actions"""
+
     create_default_network = True
 
     @classmethod
@@ -38,6 +40,7 @@
     @decorators.attr(type='smoke')
     @utils.services('compute')
     def test_attach_detach_volume_to_instance(self):
+        """Test attaching and detaching volume to instance"""
         # Create a server
         server = self.create_server()
         # Volume is attached and detached successfully from an instance
@@ -53,7 +56,7 @@
 
     @decorators.idempotent_id('63e21b4c-0a0c-41f6-bfc3-7c2816815599')
     def test_volume_bootable(self):
-        # Verify that a volume bootable flag is retrieved
+        """Test setting and retrieving bootable flag of a volume"""
         for bool_bootable in [True, False]:
             self.volumes_client.set_bootable_volume(self.volume['id'],
                                                     bootable=bool_bootable)
@@ -69,6 +72,11 @@
     @decorators.idempotent_id('9516a2c8-9135-488c-8dd6-5677a7e5f371')
     @utils.services('compute')
     def test_get_volume_attachment(self):
+        """Test getting volume attachments
+
+        Attach a volume to a server, and then retrieve volume's attachments
+        info.
+        """
         # Create a server
         server = self.create_server()
         # Verify that a volume's attachment information is retrieved
@@ -96,6 +104,7 @@
     @decorators.idempotent_id('d8f1ca95-3d5b-44a3-b8ca-909691c9532d')
     @utils.services('image')
     def test_volume_upload(self):
+        """Test uploading volume to create an image"""
         # NOTE(gfidente): the volume uploaded in Glance comes from setUpClass,
         # it is shared with the other tests. After it is uploaded in Glance,
         # there is no way to delete it from Cinder, so we delete it from Glance
@@ -118,6 +127,7 @@
 
     @decorators.idempotent_id('92c4ef64-51b2-40c0-9f7e-4749fbaaba33')
     def test_reserve_unreserve_volume(self):
+        """Test reserving and unreserving volume"""
         # Mark volume as reserved.
         self.volumes_client.reserve_volume(self.volume['id'])
         # To get the volume info
@@ -131,6 +141,7 @@
 
     @decorators.idempotent_id('fff74e1e-5bd3-4b33-9ea9-24c103bc3f59')
     def test_volume_readonly_update(self):
+        """Test updating and retrieve volume's readonly flag"""
         for readonly in [True, False]:
             # Update volume readonly
             self.volumes_client.update_volume_readonly(self.volume['id'],
diff --git a/tempest/api/volume/test_volumes_backup.py b/tempest/api/volume/test_volumes_backup.py
index c178272..e3b8800 100644
--- a/tempest/api/volume/test_volumes_backup.py
+++ b/tempest/api/volume/test_volumes_backup.py
@@ -80,11 +80,7 @@
         self.assertEqual('container', backup['container'])
 
         # Get all backups with detail
-        backups = self.backups_client.list_backups(
-            detail=True)['backups']
-        for backup_info in backups:
-            self.assertIn('created_at', backup_info)
-            self.assertIn('links', backup_info)
+        backups = self.backups_client.list_backups(detail=True)['backups']
         self.assertIn((backup['name'], backup['id']),
                       [(m['name'], m['id']) for m in backups])
 
@@ -176,7 +172,6 @@
             backup['id'], **update_kwargs)['backup']
         self.assertEqual(backup['id'], update_backup['id'])
         self.assertEqual(update_kwargs['name'], update_backup['name'])
-        self.assertIn('links', update_backup)
 
         # Assert response body for show_backup method
         retrieved_backup = self.backups_client.show_backup(
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index 866bd87..76c22f0 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -28,6 +28,7 @@
 
 
 class VolumesNegativeTest(base.BaseVolumeTest):
+    """Negative tests of volumes"""
 
     @classmethod
     def resource_setup(cls):
@@ -58,50 +59,49 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('f131c586-9448-44a4-a8b0-54ca838aa43e')
     def test_volume_get_nonexistent_volume_id(self):
-        # Should not be able to get a non-existent volume
+        """Test getting non existent volume should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.show_volume,
                           data_utils.rand_uuid())
 
     @decorators.attr(type=['negative'])
     @decorators.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
+        """Test deleting non existent volume should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.delete_volume,
                           data_utils.rand_uuid())
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('1ed83a8a-682d-4dfb-a30e-ee63ffd6c049')
     def test_create_volume_with_invalid_size(self):
-        # Should not be able to create volume with invalid size in request
+        """Test creating volume with invalid size should fail"""
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.create_volume, size='#$%')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('9387686f-334f-4d31-a439-33494b9e2683')
     def test_create_volume_without_passing_size(self):
-        # Should not be able to create volume without passing size
-        # in request
+        """Test creating volume with empty size should fail"""
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.create_volume, size='')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('41331caa-eaf4-4001-869d-bc18c1869360')
     def test_create_volume_with_size_zero(self):
-        # Should not be able to create volume with size zero
+        """Test creating volume with zero size should fail"""
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.create_volume, size='0')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('8b472729-9eba-446e-a83b-916bdb34bef7')
     def test_create_volume_with_size_negative(self):
-        # Should not be able to create volume with size negative
+        """Test creating volume with negative size should fail"""
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.create_volume, size='-1')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('10254ed8-3849-454e-862e-3ab8e6aa01d2')
     def test_create_volume_with_nonexistent_volume_type(self):
-        # Should not be able to create volume with non-existent volume type
+        """Test creating volume with non existent volume type should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.create_volume,
                           size=CONF.volume.volume_size,
                           volume_type=data_utils.rand_uuid())
@@ -109,7 +109,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('0c36f6ae-4604-4017-b0a9-34fdc63096f9')
     def test_create_volume_with_nonexistent_snapshot_id(self):
-        # Should not be able to create volume with non-existent snapshot
+        """Test creating volume with non existent snapshot should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.create_volume,
                           size=CONF.volume.volume_size,
                           snapshot_id=data_utils.rand_uuid())
@@ -117,7 +117,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('47c73e08-4be8-45bb-bfdf-0c4e79b88344')
     def test_create_volume_with_nonexistent_source_volid(self):
-        # Should not be able to create volume with non-existent source volume
+        """Test creating volume with non existent source volume should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.create_volume,
                           size=CONF.volume.volume_size,
                           source_volid=data_utils.rand_uuid())
@@ -125,46 +125,49 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('0186422c-999a-480e-a026-6a665744c30c')
     def test_update_volume_with_nonexistent_volume_id(self):
+        """Test updating non existent volume should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.update_volume,
                           volume_id=data_utils.rand_uuid())
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('e66e40d6-65e6-4e75-bdc7-636792fa152d')
     def test_update_volume_with_invalid_volume_id(self):
+        """Test updating volume with invalid volume id should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.update_volume,
                           volume_id=data_utils.rand_name('invalid'))
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('72aeca85-57a5-4c1f-9057-f320f9ea575b')
     def test_update_volume_with_empty_volume_id(self):
+        """Test updating volume with empty volume id should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.update_volume,
                           volume_id='')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('30799cfd-7ee4-446c-b66c-45b383ed211b')
     def test_get_invalid_volume_id(self):
-        # Should not be able to get volume with invalid id
+        """Test getting volume with invalid volume id should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.show_volume,
                           data_utils.rand_name('invalid'))
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('c6c3db06-29ad-4e91-beb0-2ab195fe49e3')
     def test_get_volume_without_passing_volume_id(self):
-        # Should not be able to get volume when empty ID is passed
+        """Test getting volume with empty volume id should fail"""
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.show_volume, '')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('1f035827-7c32-4019-9240-b4ec2dbd9dfd')
     def test_delete_invalid_volume_id(self):
-        # Should not be able to delete volume when invalid ID is passed
+        """Test deleting volume with invalid volume id should fail"""
         self.assertRaises(lib_exc.NotFound, self.volumes_client.delete_volume,
                           data_utils.rand_name('invalid'))
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('441a1550-5d44-4b30-af0f-a6d402f52026')
     def test_delete_volume_without_passing_volume_id(self):
-        # Should not be able to delete volume when empty ID is passed
+        """Test deleting volume with empty volume id should fail"""
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.delete_volume, '')
 
@@ -172,6 +175,7 @@
     @decorators.idempotent_id('f5e56b0a-5d02-43c1-a2a7-c9b792c2e3f6')
     @utils.services('compute')
     def test_attach_volumes_with_nonexistent_volume_id(self):
+        """Test attaching non existent volume to server should fail"""
         server = self.create_server()
 
         self.assertRaises(lib_exc.NotFound,
@@ -183,6 +187,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('9f9c24e4-011d-46b5-b992-952140ce237a')
     def test_detach_volumes_with_invalid_volume_id(self):
+        """Test detaching volume with invalid volume id should fail"""
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.detach_volume,
                           'xxx')
@@ -190,7 +195,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('e0c75c74-ee34-41a9-9288-2a2051452854')
     def test_volume_extend_with_size_smaller_than_original_size(self):
-        # Extend volume with smaller size than original size.
+        """Test extending volume with decreasing size should fail"""
         extend_size = 0
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.extend_volume,
@@ -199,7 +204,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('5d0b480d-e833-439f-8a5a-96ad2ed6f22f')
     def test_volume_extend_with_non_number_size(self):
-        # Extend volume when size is non number.
+        """Test extending volume with non-integer size should fail"""
         extend_size = 'abc'
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.extend_volume,
@@ -208,7 +213,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('355218f1-8991-400a-a6bb-971239287d92')
     def test_volume_extend_with_None_size(self):
-        # Extend volume with None size.
+        """Test extending volume with none size should fail"""
         extend_size = None
         self.assertRaises(lib_exc.BadRequest,
                           self.volumes_client.extend_volume,
@@ -217,7 +222,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('8f05a943-013c-4063-ac71-7baf561e82eb')
     def test_volume_extend_with_nonexistent_volume_id(self):
-        # Extend volume size when volume is nonexistent.
+        """Test extending non existent volume should fail"""
         extend_size = self.volume['size'] + 1
         self.assertRaises(lib_exc.NotFound, self.volumes_client.extend_volume,
                           data_utils.rand_uuid(), new_size=extend_size)
@@ -225,7 +230,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('aff8ba64-6d6f-4f2e-bc33-41a08ee9f115')
     def test_volume_extend_without_passing_volume_id(self):
-        # Extend volume size when passing volume id is None.
+        """Test extending volume without passing volume id should fail"""
         extend_size = self.volume['size'] + 1
         self.assertRaises(lib_exc.NotFound, self.volumes_client.extend_volume,
                           None, new_size=extend_size)
@@ -233,6 +238,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('ac6084c0-0546-45f9-b284-38a367e0e0e2')
     def test_reserve_volume_with_nonexistent_volume_id(self):
+        """Test reserving non existent volume should fail"""
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.reserve_volume,
                           data_utils.rand_uuid())
@@ -240,6 +246,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('eb467654-3dc1-4a72-9b46-47c29d22654c')
     def test_unreserve_volume_with_nonexistent_volume_id(self):
+        """Test unreserving non existent volume should fail"""
         self.assertRaises(lib_exc.NotFound,
                           self.volumes_client.unreserve_volume,
                           data_utils.rand_uuid())
@@ -247,6 +254,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('449c4ed2-ecdd-47bb-98dc-072aeccf158c')
     def test_reserve_volume_with_negative_volume_status(self):
+        """Test reserving already reserved volume should fail"""
         # Mark volume as reserved.
         self.volumes_client.reserve_volume(self.volume['id'])
         # Mark volume which is marked as reserved before
@@ -259,6 +267,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('0f4aa809-8c7b-418f-8fb3-84c7a5dfc52f')
     def test_list_volumes_with_nonexistent_name(self):
+        """Test listing volumes with non existent name should get nothing"""
         v_name = data_utils.rand_name(self.__class__.__name__ + '-Volume')
         params = {'name': v_name}
         fetched_volume = self.volumes_client.list_volumes(
@@ -268,6 +277,10 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('9ca17820-a0e7-4cbd-a7fa-f4468735e359')
     def test_list_volumes_detail_with_nonexistent_name(self):
+        """Test listing volume details with non existent name
+
+        Listing volume details with non existent name should get nothing.
+        """
         v_name = data_utils.rand_name(self.__class__.__name__ + '-Volume')
         params = {'name': v_name}
         fetched_volume = \
@@ -278,6 +291,7 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('143b279b-7522-466b-81be-34a87d564a7c')
     def test_list_volumes_with_invalid_status(self):
+        """Test listing volumes with invalid status should get nothing"""
         params = {'status': 'null'}
         fetched_volume = self.volumes_client.list_volumes(
             params=params)['volumes']
@@ -286,6 +300,10 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('ba94b27b-be3f-496c-a00e-0283b373fa75')
     def test_list_volumes_detail_with_invalid_status(self):
+        """Test listing volume details with invalid status
+
+        Listing volume details with invalid status should get nothing
+        """
         params = {'status': 'null'}
         fetched_volume = \
             self.volumes_client.list_volumes(detail=True,
@@ -296,6 +314,7 @@
     @decorators.idempotent_id('5b810c91-0ad1-47ce-aee8-615f789be78f')
     @utils.services('image')
     def test_create_volume_from_image_with_decreasing_size(self):
+        """Test creating volume from image with decreasing size should fail"""
         # Create image
         image = self.create_image()
 
@@ -311,6 +330,7 @@
     @decorators.idempotent_id('d15e7f35-2cfc-48c8-9418-c8223a89bcbb')
     @utils.services('image')
     def test_create_volume_from_deactivated_image(self):
+        """Test creating volume from deactivated image should fail"""
         # Create image
         image = self.create_image()
 
diff --git a/tempest/cmd/subunit_describe_calls.py b/tempest/cmd/subunit_describe_calls.py
index e029538..172fbaa 100644
--- a/tempest/cmd/subunit_describe_calls.py
+++ b/tempest/cmd/subunit_describe_calls.py
@@ -30,6 +30,8 @@
 * ``--ports, -p``: (Optional) The path to a JSON file describing the ports
   being used by different services
 * ``--verbose, -v``: (Optional) Print Request and Response Headers and Body
+  data to stdout in the non cliff deprecated CLI
+* ``--all-stdout, -a``: (Optional) Print Request and Response Headers and Body
   data to stdout
 
 
@@ -278,7 +280,7 @@
     return url_parser
 
 
-def output(url_parser, output_file, verbose):
+def output(url_parser, output_file, all_stdout):
     if output_file is not None:
         with open(output_file, "w") as outfile:
             outfile.write(json.dumps(url_parser.test_logs))
@@ -294,7 +296,7 @@
             sys.stdout.write('\t- {0} {1} request for {2} to {3}\n'.format(
                 item.get('status_code'), item.get('verb'),
                 item.get('service'), item.get('url')))
-            if verbose:
+            if all_stdout:
                 sys.stdout.write('\t\t- request headers: {0}\n'.format(
                     item.get('request_headers')))
                 sys.stdout.write('\t\t- request body: {0}\n'.format(
@@ -313,7 +315,7 @@
               "please use: 'tempest subunit-describe-calls'")
         cl_args = ArgumentParser().parse_args()
     parser = parse(cl_args.subunit, cl_args.non_subunit_name, cl_args.ports)
-    output(parser, cl_args.output_file, cl_args.verbose)
+    output(parser, cl_args.output_file, cl_args.all_stdout)
 
 
 def _parser_add_args(parser):
@@ -339,9 +341,23 @@
         help="A JSON file describing the ports for each service."
     )
 
-    parser.add_argument(
-        "-v", "--verbose", action='store_true', default=False,
-        help="Add Request and Response header and body data to stdout."
+    group = parser.add_mutually_exclusive_group()
+    # the -v and --verbose command are for the old subunit-describe-calls
+    # main() CLI interface.  It does not work with the new
+    # tempest subunit-describe-callss CLI. So when the main CLI approach is
+    # deleted this argument is not needed.
+    group.add_argument(
+        "-v", "--verbose", action='store_true', dest='all_stdout',
+        help='Add Request and Response header and body data to stdout print.'
+             ' NOTE: This argument deprecated and does not work with'
+             ' tempest subunit-describe-calls CLI.'
+             ' Use new option: "-a", "--all-stdout"'
+    )
+    group.add_argument(
+        "-a", "--all-stdout", action='store_true',
+        help="Add Request and Response header and body data to stdout print."
+             " Note: this argument work with the subunit-describe-calls and"
+             " tempest subunit-describe-calls CLI commands."
     )
 
 
diff --git a/tempest/config.py b/tempest/config.py
index eca2023..989b8ef 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -481,6 +481,12 @@
                                   'MIN_LIBVIRT_VERSION is >= 1.2.17 on all '
                                   'branches from stable/rocky and will be '
                                   'removed in a future release.'),
+    cfg.BoolOpt('can_migrate_between_any_hosts',
+                default=True,
+                help="Does the test environment support migrating between "
+                     "any hosts? In environments with non-homogeneous compute "
+                     "nodes you can set this to False so that it will select "
+                     "destination host for migrating automatically"),
     cfg.BoolOpt('vnc_console',
                 default=False,
                 help='Enable VNC console. This configuration value should '
diff --git a/tempest/lib/api_schema/response/volume/backups.py b/tempest/lib/api_schema/response/volume/backups.py
new file mode 100644
index 0000000..9e85f5f
--- /dev/null
+++ b/tempest/lib/api_schema/response/volume/backups.py
@@ -0,0 +1,229 @@
+# Copyright 2015 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 parameter_types
+
+common_show_backup = {
+    'type': 'object',
+    'properties': {
+        'status': {'type': 'string'},
+        'object_count': {'type': 'integer'},
+        'container': {'type': ['string', 'null']},
+        'description': {'type': ['string', 'null']},
+        'links': parameter_types.links,
+        'availability_zone': {'type': ['string', 'null']},
+        'created_at': parameter_types.date_time,
+        'updated_at': parameter_types.date_time_or_null,
+        'name': {'type': ['string', 'null']},
+        'has_dependent_backups': {'type': 'boolean'},
+        'volume_id': {'type': 'string', 'format': 'uuid'},
+        'fail_reason': {'type': ['string', 'null']},
+        'size': {'type': 'integer'},
+        'id': {'type': 'string', 'format': 'uuid'},
+        'is_incremental': {'type': 'boolean'},
+        'data_timestamp': parameter_types.date_time_or_null,
+        'snapshot_id': {'type': ['string', 'null']},
+        # TODO(zhufl): os-backup-project-attr:project_id is added
+        # in 3.18, we should move it to the 3.18 schema file when
+        # microversion is supported in volume interfaces.
+        'os-backup-project-attr:project_id': {
+            'type': 'string', 'format': 'uuid'},
+        # TODO(zhufl): metadata is added in 3.43, we should move it
+        # to the 3.43 schema file when microversion is supported
+        # in volume interfaces.
+        'metadata': {'^.+$': {'type': 'string'}},
+        # TODO(zhufl): user_id is added in 3.56, we should move it
+        # to the 3.56 schema file when microversion is supported
+        # in volume interfaces.
+        'user_id': {'type': 'string'},
+    },
+    'additionalProperties': False,
+    'required': ['status', 'object_count', 'fail_reason', 'links',
+                 'created_at', 'updated_at', 'name', 'volume_id', 'size', 'id',
+                 'data_timestamp']
+}
+
+create_backup = {
+    'status_code': [202],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backup': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'links': parameter_types.links,
+                    'name': {'type': 'string'},
+                    # TODO(zhufl): metadata is added in 3.43, we should move it
+                    # to the 3.43 schema file when microversion is supported
+                    # in volume interfaces.
+                    'metadata': {'^.+$': {'type': 'string'}},
+                },
+                'additionalProperties': False,
+                'required': ['id', 'links', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backup']
+    }
+}
+
+update_backup = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backup': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'links': parameter_types.links,
+                    'name': {'type': 'string'},
+                    'metadata': {'^.+$': {'type': 'string'}}
+                },
+                'additionalProperties': False,
+                'required': ['id', 'links', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backup']
+    }
+}
+
+restore_backup = {
+    'status_code': [202],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'restore': {
+                'type': 'object',
+                'properties': {
+                    'backup_id': {'type': 'string', 'format': 'uuid'},
+                    'volume_id': {'type': 'string', 'format': 'uuid'},
+                    'volume_name': {'type': 'string'},
+                },
+                'additionalProperties': False,
+                'required': ['backup_id', 'volume_id', 'volume_name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['restore']
+    }
+}
+
+delete_backup = {'status_code': [202]}
+
+show_backup = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backup': common_show_backup
+        },
+        'additionalProperties': False,
+        'required': ['backup']
+    }
+}
+
+list_backups_no_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backups': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'links': parameter_types.links,
+                        'id': {'type': 'string', 'format': 'uuid'},
+                        'name': {'type': ['string', 'null']},
+                        # TODO(zhufl): count is added in 3.45, we should move
+                        # it to the 3.45 schema file when microversion is
+                        # supported in volume interfaces
+                        'count': {'type': 'integer'}
+                    },
+                    'additionalProperties': False,
+                    'required': ['links', 'id', 'name']
+                }
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backups'],
+    }
+}
+
+list_backups_detail = copy.deepcopy(common_show_backup)
+# TODO(zhufl): count is added in 3.45, we should move it to the 3.45 schema
+# file when microversion is supported in volume interfaces
+list_backups_detail['properties'].update({'count': {'type': 'integer'}})
+list_backups_with_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backups': {
+                'type': 'array',
+                'items': list_backups_detail
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backups'],
+    }
+}
+
+export_backup = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backup-record': {
+                'type': 'object',
+                'properties': {
+                    'backup_service': {'type': 'string'},
+                    'backup_url': {'type': 'string'}
+                },
+                'additionalProperties': False,
+                'required': ['backup_service', 'backup_url']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backup-record']
+    }
+}
+
+import_backup = {
+    'status_code': [201],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'backup': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'links': parameter_types.links,
+                    'name': {'type': ['string', 'null']},
+                },
+                'additionalProperties': False,
+                'required': ['id', 'links', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['backup']
+    }
+}
+
+reset_backup_status = {'status_code': [202]}
diff --git a/tempest/lib/api_schema/response/volume/groups.py b/tempest/lib/api_schema/response/volume/groups.py
new file mode 100644
index 0000000..cb31269
--- /dev/null
+++ b/tempest/lib/api_schema/response/volume/groups.py
@@ -0,0 +1,164 @@
+# Copyright 2015 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.
+
+from tempest.lib.api_schema.response.compute.v2_1 import parameter_types
+
+create_group = {
+    'status_code': [202],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'name': {'type': 'string'},
+                },
+                'additionalProperties': False,
+                'required': ['id', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group']
+    }
+}
+
+delete_group = {'status_code': [202]}
+
+show_group = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group': {
+                'type': 'object',
+                'properties': {
+                    'status': {'type': 'string'},
+                    'description': {'type': ['string', 'null']},
+                    'availability_zone': {'type': 'string'},
+                    'created_at': parameter_types.date_time,
+                    'group_type': {'type': 'string', 'format': 'uuid'},
+                    'group_snapshot_id': {'type': ['string', 'null']},
+                    'source_group_id': {'type': ['string', 'null']},
+                    'volume_types': {
+                        'type': 'array',
+                        'items': {'type': 'string', 'format': 'uuid'}
+                    },
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'name': {'type': 'string'},
+                    # TODO(zhufl): volumes is added in 3.25, we should move it
+                    # to the 3.25 schema file when microversion is supported
+                    # in volume interfaces
+                    'volumes': {
+                        'type': 'array',
+                        'items': {'type': 'string', 'format': 'uuid'}
+                    },
+                    'replication_status': {'type': 'string'}
+                },
+                'additionalProperties': False,
+                'required': ['status', 'description', 'created_at',
+                             'group_type', 'volume_types', 'id', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group']
+    }
+}
+
+list_groups_no_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'groups': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'id': {'type': 'string', 'format': 'uuid'},
+                        'name': {'type': 'string'}
+                    },
+                    'additionalProperties': False,
+                    'required': ['id', 'name'],
+                }
+            }
+        },
+        'additionalProperties': False,
+        'required': ['groups'],
+    }
+}
+
+list_groups_with_detail = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'groups': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'status': {'type': 'string'},
+                        'description': {'type': ['string', 'null']},
+                        'availability_zone': {'type': 'string'},
+                        'created_at': parameter_types.date_time,
+                        'group_type': {'type': 'string', 'format': 'uuid'},
+                        'group_snapshot_id': {'type': ['string', 'null']},
+                        'source_group_id': {'type': ['string', 'null']},
+                        'volume_types': {
+                            'type': 'array',
+                            'items': {'type': 'string', 'format': 'uuid'}
+                        },
+                        'id': {'type': 'string', 'format': 'uuid'},
+                        'name': {'type': 'string'},
+                        # TODO(zhufl): volumes is added in 3.25, we should
+                        # move it to the 3.25 schema file when microversion
+                        # is supported in volume interfaces
+                        'volumes': {
+                            'type': 'array',
+                            'items': {'type': 'string', 'format': 'uuid'}
+                        },
+                    },
+                    'additionalProperties': False,
+                    'required': ['status', 'description', 'created_at',
+                                 'group_type', 'volume_types', 'id', 'name']
+                }
+            }
+        },
+        'additionalProperties': False,
+        'required': ['groups'],
+    }
+}
+
+create_group_from_source = {
+    'status_code': [202],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'group': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string', 'format': 'uuid'},
+                    'name': {'type': 'string'},
+                },
+                'additionalProperties': False,
+                'required': ['id', 'name']
+            }
+        },
+        'additionalProperties': False,
+        'required': ['group']
+    }
+}
+update_group = {'status_code': [202]}
+reset_group_status = {'status_code': [202]}
diff --git a/tempest/lib/common/utils/linux/remote_client.py b/tempest/lib/common/utils/linux/remote_client.py
index 8ac1d38..71fed02 100644
--- a/tempest/lib/common/utils/linux/remote_client.py
+++ b/tempest/lib/common/utils/linux/remote_client.py
@@ -11,7 +11,6 @@
 #    under the License.
 
 import functools
-import re
 import sys
 
 import netaddr
@@ -134,9 +133,8 @@
         This method will not unmount the config drive, so unmount_config_drive
         must be used for cleanup.
         """
-        cmd_blkid = 'blkid | grep -i config-2'
-        result = self.exec_command(cmd_blkid)
-        dev_name = re.match('([^:]+)', result).group()
+        cmd_blkid = 'blkid -L config-2 -o device'
+        dev_name = self.exec_command(cmd_blkid).strip()
 
         try:
             self.exec_command('sudo mount %s /mnt' % dev_name)
diff --git a/tempest/lib/services/volume/v3/backups_client.py b/tempest/lib/services/volume/v3/backups_client.py
index 970471e..1df45fa 100644
--- a/tempest/lib/services/volume/v3/backups_client.py
+++ b/tempest/lib/services/volume/v3/backups_client.py
@@ -16,6 +16,7 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
+from tempest.lib.api_schema.response.volume import backups as schema
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.volume import base_client
@@ -34,7 +35,7 @@
         post_body = json.dumps({'backup': kwargs})
         resp, body = self.post('backups', post_body)
         body = json.loads(body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.create_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def update_backup(self, backup_id, **kwargs):
@@ -47,7 +48,7 @@
         put_body = json.dumps({'backup': kwargs})
         resp, body = self.put('backups/%s' % backup_id, put_body)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema.update_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def restore_backup(self, backup_id, **kwargs):
@@ -60,13 +61,13 @@
         post_body = json.dumps({'restore': kwargs})
         resp, body = self.post('backups/%s/restore' % (backup_id), post_body)
         body = json.loads(body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.restore_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def delete_backup(self, backup_id):
         """Delete a backup of volume."""
         resp, body = self.delete('backups/%s' % backup_id)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.delete_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def show_backup(self, backup_id):
@@ -74,7 +75,7 @@
         url = "backups/%s" % backup_id
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema.show_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def list_backups(self, detail=False, **params):
@@ -86,13 +87,15 @@
         https://docs.openstack.org/api-ref/block-storage/v3/index.html#list-backups-with-detail
         """
         url = "backups"
+        list_backups_schema = schema.list_backups_no_detail
         if detail:
             url += "/detail"
+            list_backups_schema = schema.list_backups_with_detail
         if params:
             url += '?%s' % urllib.urlencode(params)
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(list_backups_schema, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def export_backup(self, backup_id):
@@ -100,7 +103,7 @@
         url = "backups/%s/export_record" % backup_id
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema.export_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def import_backup(self, **kwargs):
@@ -113,14 +116,14 @@
         post_body = json.dumps({'backup-record': kwargs})
         resp, body = self.post("backups/import_record", post_body)
         body = json.loads(body)
-        self.expected_success(201, resp.status)
+        self.validate_response(schema.import_backup, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def reset_backup_status(self, backup_id, status):
         """Reset the specified backup's status."""
         post_body = json.dumps({'os-reset_status': {"status": status}})
         resp, body = self.post('backups/%s/action' % backup_id, post_body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.reset_backup_status, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def is_resource_deleted(self, id):
diff --git a/tempest/lib/services/volume/v3/groups_client.py b/tempest/lib/services/volume/v3/groups_client.py
index ffae232..3d8523d 100644
--- a/tempest/lib/services/volume/v3/groups_client.py
+++ b/tempest/lib/services/volume/v3/groups_client.py
@@ -16,6 +16,7 @@
 from oslo_serialization import jsonutils as json
 from six.moves.urllib import parse as urllib
 
+from tempest.lib.api_schema.response.volume import groups as schema
 from tempest.lib.common import rest_client
 from tempest.lib import exceptions as lib_exc
 from tempest.lib.services.volume import base_client
@@ -23,6 +24,7 @@
 
 class GroupsClient(base_client.BaseClient):
     """Client class to send CRUD Volume Group API requests"""
+    api_version = 'v3'
 
     def create_group(self, **kwargs):
         """Creates a group.
@@ -35,7 +37,7 @@
         post_body = json.dumps({'group': kwargs})
         resp, body = self.post('groups', post_body)
         body = json.loads(body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.create_group, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def delete_group(self, group_id, delete_volumes=True):
@@ -49,7 +51,7 @@
         post_body = json.dumps({'delete': post_body})
         resp, body = self.post('groups/%s/action' % group_id,
                                post_body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.delete_group, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def show_group(self, group_id):
@@ -62,7 +64,7 @@
         url = "groups/%s" % str(group_id)
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema.show_group, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def list_groups(self, detail=False, **params):
@@ -74,13 +76,15 @@
         https://docs.openstack.org/api-ref/block-storage/v3/#list-groups-with-details
         """
         url = "groups"
+        schema_list_groups = schema.list_groups_no_detail
         if detail:
             url += "/detail"
+            schema_list_groups = schema.list_groups_with_detail
         if params:
             url += '?%s' % urllib.urlencode(params)
         resp, body = self.get(url)
         body = json.loads(body)
-        self.expected_success(200, resp.status)
+        self.validate_response(schema_list_groups, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def create_group_from_source(self, **kwargs):
@@ -93,7 +97,7 @@
         post_body = json.dumps({'create-from-src': kwargs})
         resp, body = self.post('groups/action', post_body)
         body = json.loads(body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.create_group_from_source, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def update_group(self, group_id, **kwargs):
@@ -105,7 +109,7 @@
         """
         put_body = json.dumps({'group': kwargs})
         resp, body = self.put('groups/%s' % group_id, put_body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.update_group, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def reset_group_status(self, group_id, status_to_set):
@@ -116,7 +120,7 @@
         """
         post_body = json.dumps({'reset_status': {'status': status_to_set}})
         resp, body = self.post('groups/%s/action' % group_id, post_body)
-        self.expected_success(202, resp.status)
+        self.validate_response(schema.reset_group_status, resp, body)
         return rest_client.ResponseBody(resp, body)
 
     def is_resource_deleted(self, id):
diff --git a/tempest/manager.py b/tempest/manager.py
index e3174d4..b485ef2 100644
--- a/tempest/manager.py
+++ b/tempest/manager.py
@@ -33,7 +33,7 @@
 
     def __init__(self, credentials, scope='project'):
         msg = ("tempest.manager.Manager is not a stable interface and as such "
-               "it should not imported directly. It will be removed as "
+               "it should not be imported directly. It will be removed as "
                "soon as the client manager becomes available in tempest.lib.")
         LOG.warning(msg)
         dscv = CONF.identity.disable_ssl_certificate_validation
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index a80b77d..add4c37 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -91,10 +91,32 @@
             volume_microversion=self.volume_request_microversion,
             placement_microversion=self.placement_request_microversion))
 
+    def setup_compute_client(cls):
+        """Compute and Compute security groups client"""
+        cls.compute_images_client = cls.os_primary.compute_images_client
+        cls.keypairs_client = cls.os_primary.keypairs_client
+        cls.compute_security_groups_client = (
+            cls.os_primary.compute_security_groups_client)
+        cls.compute_security_group_rules_client = (
+            cls.os_primary.compute_security_group_rules_client)
+        cls.servers_client = cls.os_primary.servers_client
+        cls.interface_client = cls.os_primary.interfaces_client
+
+    def setup_network_client(cls):
+        """Neutron network client"""
+        cls.networks_client = cls.os_primary.networks_client
+        cls.ports_client = cls.os_primary.ports_client
+        cls.routers_client = cls.os_primary.routers_client
+        cls.subnets_client = cls.os_primary.subnets_client
+        cls.floating_ips_client = cls.os_primary.floating_ips_client
+        cls.security_groups_client = cls.os_primary.security_groups_client
+        cls.security_group_rules_client = (
+            cls.os_primary.security_group_rules_client)
+
     @classmethod
     def setup_clients(cls):
+        """This setup the service clients for the tests"""
         super(ScenarioTest, cls).setup_clients()
-        # Clients (in alphabetical order)
         cls.flavors_client = cls.os_primary.flavors_client
         cls.compute_floating_ips_client = (
             cls.os_primary.compute_floating_ips_client)
@@ -108,37 +130,20 @@
                 raise lib_exc.InvalidConfiguration(
                     'Either api_v1 or api_v2 must be True in '
                     '[image-feature-enabled].')
-        # Compute image client
-        cls.compute_images_client = cls.os_primary.compute_images_client
-        cls.keypairs_client = cls.os_primary.keypairs_client
-        # Nova security groups client
-        cls.compute_security_groups_client = (
-            cls.os_primary.compute_security_groups_client)
-        cls.compute_security_group_rules_client = (
-            cls.os_primary.compute_security_group_rules_client)
-        cls.servers_client = cls.os_primary.servers_client
-        cls.interface_client = cls.os_primary.interfaces_client
-        # Neutron network client
-        cls.networks_client = cls.os_primary.networks_client
-        cls.ports_client = cls.os_primary.ports_client
-        cls.routers_client = cls.os_primary.routers_client
-        cls.subnets_client = cls.os_primary.subnets_client
-        cls.floating_ips_client = cls.os_primary.floating_ips_client
-        cls.security_groups_client = cls.os_primary.security_groups_client
-        cls.security_group_rules_client = (
-            cls.os_primary.security_group_rules_client)
-        # Use the latest available volume clients
+
+        cls.setup_compute_client(cls)
+        cls.setup_network_client(cls)
         if CONF.service_available.cinder:
             cls.volumes_client = cls.os_primary.volumes_client_latest
             cls.snapshots_client = cls.os_primary.snapshots_client_latest
             cls.backups_client = cls.os_primary.backups_client_latest
 
     # ## Test functions library
-    #
     # The create_[resource] functions only return body and discard the
     # resp part which is not used in scenario tests
 
     def create_port(self, network_id, client=None, **kwargs):
+        """Creates port"""
         if not client:
             client = self.ports_client
         name = data_utils.rand_name(self.__class__.__name__)
@@ -156,6 +161,13 @@
         return port
 
     def create_keypair(self, client=None):
+        """Creates keypair
+
+        Keypair is a public key of OpenSSH key pair used for accessing
+        and create servers
+        Keypair can also be created by a private key for the same purpose
+        Here, the keys are randomly generated[public/private]
+        """
         if not client:
             client = self.keypairs_client
         name = data_utils.rand_name(self.__class__.__name__)
@@ -295,6 +307,13 @@
 
     def create_volume(self, size=None, name=None, snapshot_id=None,
                       imageRef=None, volume_type=None):
+        """Creates volume
+
+        This wrapper utility creates volume and waits for volume to be
+        in 'available' state.
+        This method returns the volume's full representation by GET request.
+        """
+
         if size is None:
             size = CONF.volume.volume_size
         if imageRef:
@@ -334,6 +353,11 @@
     def create_backup(self, volume_id, name=None, description=None,
                       force=False, snapshot_id=None, incremental=False,
                       container=None):
+        """Creates backup
+
+        This wrapper utility creates backup and waits for backup to be
+        in 'available' state.
+        """
 
         name = name or data_utils.rand_name(
             self.__class__.__name__ + "-backup")
@@ -351,6 +375,12 @@
         return backup
 
     def restore_backup(self, backup_id):
+        """Restore backup
+
+        This wrapper utility restores backup and waits for backup to be
+        in 'available' state.
+        """
+
         restore = self.backups_client.restore_backup(backup_id)['restore']
         self.addCleanup(self.volumes_client.delete_volume,
                         restore['volume_id'])
@@ -362,8 +392,31 @@
         self.assertEqual(backup_id, restore['backup_id'])
         return restore
 
+    def rebuild_server(self, server_id, image=None,
+                       preserve_ephemeral=False, wait=True,
+                       rebuild_kwargs=None):
+        if image is None:
+            image = CONF.compute.image_ref
+        rebuild_kwargs = rebuild_kwargs or {}
+        LOG.debug("Rebuilding server (id: %s, image: %s, preserve eph: %s)",
+                  server_id, image, preserve_ephemeral)
+        self.servers_client.rebuild_server(
+            server_id=server_id,
+            image_ref=image,
+            preserve_ephemeral=preserve_ephemeral,
+            **rebuild_kwargs)
+        if wait:
+            waiters.wait_for_server_status(self.servers_client,
+                                           server_id, 'ACTIVE')
+
     def create_volume_snapshot(self, volume_id, name=None, description=None,
                                metadata=None, force=False):
+        """Creates volume
+
+        This wrapper utility creates volume snapshot and waits for backup
+        to be in 'available' state.
+        """
+
         name = name or data_utils.rand_name(
             self.__class__.__name__ + '-snapshot')
         snapshot = self.snapshots_client.create_snapshot(
@@ -372,6 +425,7 @@
             display_name=name,
             description=description,
             metadata=metadata)['snapshot']
+
         self.addCleanup(self.snapshots_client.wait_for_resource_deletion,
                         snapshot['id'])
         self.addCleanup(self.snapshots_client.delete_snapshot, snapshot['id'])
@@ -401,6 +455,23 @@
         admin_volume_type_client.delete_volume_type(volume_type['id'])
 
     def create_volume_type(self, client=None, name=None, backend_name=None):
+        """Creates volume type
+
+        In a multiple-storage back-end configuration,
+        each back end has a name (volume_backend_name).
+        The name of the back end is declared as an extra-specification
+        of a volume type (such as, volume_backend_name=LVM).
+        When a volume is created, the scheduler chooses an
+        appropriate back end to handle the request, according
+        to the volume type specified by the user.
+        The scheduler uses volume types to explicitly create volumes on
+        specific back ends.
+
+        Before using volume type, a volume type has to be declared
+        to Block Storage. In addition to that, an extra-specification
+        has to be created to link the volume type to a back end name.
+        """
+
         if not client:
             client = self.os_admin.volume_types_client_latest
         if not name:
@@ -416,6 +487,7 @@
 
         volume_type = client.create_volume_type(
             name=randomized_name, extra_specs=extra_specs)['volume_type']
+        self.assertIn('id', volume_type)
         self.addCleanup(self._cleanup_volume_type, volume_type)
         return volume_type
 
@@ -456,7 +528,7 @@
         return rules
 
     def _create_security_group(self):
-        # Create security group
+        """Create security group and add rules to security group"""
         sg_name = data_utils.rand_name(self.__class__.__name__)
         sg_desc = sg_name + " description"
         secgroup = self.compute_security_groups_client.create_security_group(
@@ -470,7 +542,6 @@
 
         # Add rules to the security group
         self._create_loginable_secgroup_rule(secgroup['id'])
-
         return secgroup
 
     def get_remote_client(self, ip_address, username=None, private_key=None,
@@ -502,36 +573,7 @@
         linux_client.validate_authentication()
         return linux_client
 
-    def _image_create(self, name, fmt, path,
-                      disk_format=None, properties=None):
-        if properties is None:
-            properties = {}
-        name = data_utils.rand_name('%s-' % name)
-        params = {
-            'name': name,
-            'container_format': fmt,
-            'disk_format': disk_format or fmt,
-        }
-        if CONF.image_feature_enabled.api_v1:
-            params['is_public'] = 'False'
-            params['properties'] = properties
-            params = {'headers': common_image.image_meta_to_headers(**params)}
-        else:
-            params['visibility'] = 'private'
-            # Additional properties are flattened out in the v2 API.
-            params.update(properties)
-        body = self.image_client.create_image(**params)
-        image = body['image'] if 'image' in body else body
-        self.addCleanup(self.image_client.delete_image, image['id'])
-        self.assertEqual("queued", image['status'])
-        with open(path, 'rb') as image_file:
-            if CONF.image_feature_enabled.api_v1:
-                self.image_client.update_image(image['id'], data=image_file)
-            else:
-                self.image_client.store_image_file(image['id'], image_file)
-        return image['id']
-
-    def glance_image_create(self):
+    def image_create(self, name='scenario-img'):
         img_path = CONF.scenario.img_file
         if not os.path.exists(img_path):
             # TODO(kopecmartin): replace LOG.warning for rasing
@@ -553,16 +595,38 @@
                   "properties: %s",
                   img_path, img_container_format, img_disk_format,
                   img_properties)
-        image = self._image_create('scenario-img',
-                                   img_container_format,
-                                   img_path,
-                                   disk_format=img_disk_format,
-                                   properties=img_properties)
-        LOG.debug("image:%s", image)
-
-        return image
+        if img_properties is None:
+            img_properties = {}
+        name = data_utils.rand_name('%s-' % name)
+        params = {
+            'name': name,
+            'container_format': img_container_format,
+            'disk_format': img_disk_format or img_container_format,
+        }
+        if CONF.image_feature_enabled.api_v1:
+            params['is_public'] = 'False'
+            if img_properties:
+                params['properties'] = img_properties
+            params = {'headers': common_image.image_meta_to_headers(**params)}
+        else:
+            params['visibility'] = 'private'
+            # Additional properties are flattened out in the v2 API.
+            if img_properties:
+                params.update(img_properties)
+        body = self.image_client.create_image(**params)
+        image = body['image'] if 'image' in body else body
+        self.addCleanup(self.image_client.delete_image, image['id'])
+        self.assertEqual("queued", image['status'])
+        with open(img_path, 'rb') as image_file:
+            if CONF.image_feature_enabled.api_v1:
+                self.image_client.update_image(image['id'], data=image_file)
+            else:
+                self.image_client.store_image_file(image['id'], image_file)
+        LOG.debug("image:%s", image['id'])
+        return image['id']
 
     def _log_console_output(self, servers=None, client=None):
+        """Console log output"""
         if not CONF.compute_feature_enabled.console_output:
             LOG.debug('Console output not supported, cannot log')
             return
@@ -581,11 +645,12 @@
                           "for the console log", server['id'])
 
     def _log_net_info(self, exc):
-        # network debug is called as part of ssh init
+        """network debug is called as part of ssh init"""
         if not isinstance(exc, lib_exc.SSHTimeout):
             LOG.debug('Network information on a devstack host')
 
     def create_server_snapshot(self, server, name=None):
+        """Creates server snapshot"""
         # Glance client
         _image_client = self.image_client
         # Compute client
@@ -603,7 +668,7 @@
                         _image_client.delete_image, image_id)
 
         if CONF.image_feature_enabled.api_v1:
-            # In glance v1 the additional properties are stored in the headers.
+            # In glance v1 the additional properties are stored in the headers
             resp = _image_client.check_image(image_id)
             snapshot_image = common_image.get_image_meta_from_headers(resp)
             image_props = snapshot_image.get('properties', {})
@@ -633,6 +698,7 @@
         return snapshot_image
 
     def nova_volume_attach(self, server, volume_to_attach):
+        """Attach nova volume"""
         volume = self.servers_client.attach_volume(
             server['id'], volumeId=volume_to_attach['id'])['volumeAttachment']
         self.assertEqual(volume_to_attach['id'], volume['id'])
@@ -643,12 +709,14 @@
         return self.volumes_client.show_volume(volume['id'])['volume']
 
     def nova_volume_detach(self, server, volume):
+        """Detach nova volume"""
         self.servers_client.detach_volume(server['id'], volume['id'])
         waiters.wait_for_volume_resource_status(self.volumes_client,
                                                 volume['id'], 'available')
 
     def ping_ip_address(self, ip_address, should_succeed=True,
                         ping_timeout=None, mtu=None, server=None):
+        """ping ip address"""
         timeout = ping_timeout or CONF.validation.ping_timeout
         cmd = ['ping', '-c1', '-w1']
 
@@ -709,6 +777,7 @@
         :raises: AssertError if the result of the connectivity check does
             not match the value of the should_connect param
         """
+
         LOG.debug('checking network connections to IP %s with user: %s',
                   ip_address, username)
         if should_connect:
@@ -732,7 +801,7 @@
                 LOG.exception(extra_msg)
                 raise
 
-    def create_floating_ip(self, thing, pool_name=None):
+    def create_floating_ip(self, server, pool_name=None):
         """Create a floating IP and associates to a server on Nova"""
 
         if not pool_name:
@@ -743,11 +812,17 @@
                         self.compute_floating_ips_client.delete_floating_ip,
                         floating_ip['id'])
         self.compute_floating_ips_client.associate_floating_ip_to_server(
-            floating_ip['ip'], thing['id'])
+            floating_ip['ip'], server['id'])
         return floating_ip
 
     def create_timestamp(self, ip_address, dev_name=None, mount_path='/mnt',
                          private_key=None, server=None):
+        """Creates timestamp
+
+        This wrapper utility does ssh, creates timestamp and returns the
+        created timestamp.
+        """
+
         ssh_client = self.get_remote_client(ip_address,
                                             private_key=private_key,
                                             server=server)
@@ -765,6 +840,11 @@
 
     def get_timestamp(self, ip_address, dev_name=None, mount_path='/mnt',
                       private_key=None, server=None):
+        """Returns timestamp
+
+        This wrapper utility does ssh and returns the timestamp.
+        """
+
         ssh_client = self.get_remote_client(ip_address,
                                             private_key=private_key,
                                             server=server)
@@ -782,6 +862,7 @@
         Based on the configuration we're in, return a correct ip
         address for validating that a guest is up.
         """
+
         if CONF.validation.connect_method == 'floating':
             # The tests calling this method don't have a floating IP
             # and can't make use of the validation resources. So the
@@ -807,6 +888,8 @@
 
     @classmethod
     def get_host_for_server(cls, server_id):
+        """Gets host of server"""
+
         server_details = cls.os_admin.servers_client.show_server(server_id)
         return server_details['server']['OS-EXT-SRV-ATTR:host']
 
@@ -825,6 +908,12 @@
                                     security_group=None,
                                     delete_on_termination=False,
                                     name=None):
+        """Boot instance from resource
+
+        This wrapper utility boots instance from resource with block device
+        mapping with source info passed in arguments
+        """
+
         create_kwargs = dict()
         if keypair:
             create_kwargs['key_name'] = keypair['name']
@@ -841,6 +930,7 @@
         return self.create_server(image_id='', **create_kwargs)
 
     def create_volume_from_image(self):
+        """Create volume from image"""
         img_uuid = CONF.compute.image_ref
         vol_name = data_utils.rand_name(
             self.__class__.__name__ + '-volume-origin')
@@ -896,8 +986,17 @@
                       namestart='subnet-smoke', **kwargs):
         """Create a subnet for the given network
 
+        This utility creates subnet for the given network
         within the cidr block configured for tenant networks.
+
+        :param **kwargs:
+            See extra parameters below
+
+        :Keyword Arguments:
+
+            * *ip_version = ip version of the given network,
         """
+
         if not subnets_client:
             subnets_client = self.subnets_client
 
@@ -1000,22 +1099,23 @@
                             "Unable to get network by name: %s" % network_name)
         return net[0]
 
-    def create_floating_ip(self, thing, external_network_id=None,
+    def create_floating_ip(self, server, external_network_id=None,
                            port_id=None, client=None):
         """Create a floating IP and associates to a resource/port on Neutron"""
+
         if not external_network_id:
             external_network_id = CONF.network.public_network_id
         if not client:
             client = self.floating_ips_client
         if not port_id:
-            port_id, ip4 = self._get_server_port_id_and_ip4(thing)
+            port_id, ip4 = self._get_server_port_id_and_ip4(server)
         else:
             ip4 = None
 
         kwargs = {
             'floating_network_id': external_network_id,
             'port_id': port_id,
-            'tenant_id': thing.get('project_id') or thing['tenant_id'],
+            'tenant_id': server.get('project_id') or server['tenant_id'],
             'fixed_ip_address': ip4,
         }
         if CONF.network.subnet_id:
@@ -1035,6 +1135,7 @@
         :param status: target status
         :raises: AssertionError if status doesn't match
         """
+
         floatingip_id = floating_ip['id']
 
         def refresh():
@@ -1061,6 +1162,7 @@
                                           private_key,
                                           should_connect=True,
                                           servers_for_debug=None):
+        """Checks tenant network connectivity"""
         if not CONF.network.project_networks_reachable:
             msg = 'Tenant networks not configured to be reachable.'
             LOG.info(msg)
@@ -1093,6 +1195,7 @@
         :returns: True, if the connection succeeded and it was expected to
             succeed. False otherwise.
         """
+
         method_name = '%s_check' % protocol
         connectivity_checker = getattr(source, method_name)
 
@@ -1156,6 +1259,7 @@
         :param project_id: secgroup will be created in this project
         :returns: the created security group
         """
+
         if client is None:
             client = self.security_groups_client
         if not project_id:
@@ -1197,6 +1301,7 @@
                     port_range_max: 22
                     }
         """
+
         if sec_group_rules_client is None:
             sec_group_rules_client = self.security_group_rules_client
         if security_groups_client is None:
@@ -1287,6 +1392,7 @@
         network has, a tenant router will be created and returned that
         routes traffic to the public network.
         """
+
         if not client:
             client = self.routers_client
         if not project_id:
@@ -1327,6 +1433,7 @@
                                    'provider:segmentation_id': '42'}
         :returns: network, subnet, router
         """
+
         if CONF.network.shared_physical_network:
             # NOTE(Shrews): This exception is for environments where tenant
             # credential isolation is available, but network separation is
@@ -1383,6 +1490,7 @@
     def create_encryption_type(self, client=None, type_id=None, provider=None,
                                key_size=None, cipher=None,
                                control_location=None):
+        """Creates an encryption type for volume"""
         if not client:
             client = self.admin_encryption_types_client
         if not type_id:
@@ -1396,6 +1504,7 @@
     def create_encrypted_volume(self, encryption_provider, volume_type,
                                 key_size=256, cipher='aes-xts-plain64',
                                 control_location='front-end'):
+        """Creates an encrypted volume"""
         volume_type = self.create_volume_type(name=volume_type)
         self.create_encryption_type(type_id=volume_type['id'],
                                     provider=encryption_provider,
@@ -1436,11 +1545,12 @@
         cls.object_client = cls.os_operator.object_client
 
     def get_swift_stat(self):
-        """get swift status for our user account."""
+        """Get swift status for our user account."""
         self.account_client.list_account_containers()
         LOG.debug('Swift status information obtained successfully')
 
     def create_container(self, container_name=None):
+        """Creates container"""
         name = container_name or data_utils.rand_name(
             'swift-scenario-container')
         self.container_client.update_container(name)
@@ -1453,10 +1563,12 @@
         return name
 
     def delete_container(self, container_name):
+        """Deletes container"""
         self.container_client.delete_container(container_name)
         LOG.debug('Container %s deleted', container_name)
 
     def upload_object_to_container(self, container_name, obj_name=None):
+        """Uploads object to container"""
         obj_name = obj_name or data_utils.rand_name('swift-scenario-object')
         obj_data = data_utils.random_bytes()
         self.object_client.create_object(container_name, obj_name, obj_data)
@@ -1467,6 +1579,7 @@
         return obj_name, obj_data
 
     def delete_object(self, container_name, filename):
+        """Deletes object"""
         self.object_client.delete_object(container_name, filename)
         self.list_and_check_container_objects(container_name,
                                               not_present_obj=[filename])
@@ -1474,8 +1587,13 @@
     def list_and_check_container_objects(self, container_name,
                                          present_obj=None,
                                          not_present_obj=None):
-        # List objects for a given container and assert which are present and
-        # which are not.
+        """List and verify objects for a given container
+
+        This utility lists objects for a given container
+        and asserts which are present and
+        which are not
+        """
+
         if present_obj is None:
             present_obj = []
         if not_present_obj is None:
@@ -1490,5 +1608,6 @@
                 self.assertNotIn(obj, object_list)
 
     def download_and_verify(self, container_name, obj_name, expected_data):
+        """Asserts the object and expected data to verify if they are same"""
         _, obj = self.object_client.get_object(container_name, obj_name)
         self.assertEqual(obj, expected_data)
diff --git a/tempest/scenario/test_encrypted_cinder_volumes.py b/tempest/scenario/test_encrypted_cinder_volumes.py
index 008d1ae..fc93a5e 100644
--- a/tempest/scenario/test_encrypted_cinder_volumes.py
+++ b/tempest/scenario/test_encrypted_cinder_volumes.py
@@ -44,7 +44,7 @@
             raise cls.skipException('Encrypted volume attach is not supported')
 
     def launch_instance(self):
-        image = self.glance_image_create()
+        image = self.image_create()
         keypair = self.create_keypair()
 
         return self.create_server(image_id=image, key_name=keypair['name'])
diff --git a/tempest/scenario/test_minimum_basic.py b/tempest/scenario/test_minimum_basic.py
index 4cd860d..fe42583 100644
--- a/tempest/scenario/test_minimum_basic.py
+++ b/tempest/scenario/test_minimum_basic.py
@@ -106,7 +106,7 @@
     @decorators.idempotent_id('bdbb5441-9204-419d-a225-b4fdbfb1a1a8')
     @utils.services('compute', 'volume', 'image', 'network')
     def test_minimum_basic_scenario(self):
-        image = self.glance_image_create()
+        image = self.image_create()
         keypair = self.create_keypair()
 
         server = self.create_server(image_id=image, key_name=keypair['name'])
diff --git a/tempest/scenario/test_network_v6.py b/tempest/scenario/test_network_v6.py
index 8de6614..14f24c7 100644
--- a/tempest/scenario/test_network_v6.py
+++ b/tempest/scenario/test_network_v6.py
@@ -130,7 +130,7 @@
             key_name=self.keypair['name'],
             security_groups=[{'name': self.sec_grp['name']}],
             networks=[{'uuid': n['id']} for n in networks])
-        fip = self.create_floating_ip(thing=srv)
+        fip = self.create_floating_ip(server=srv)
         ips = self.define_server_ips(srv=srv)
         ssh = self.get_remote_client(
             ip_address=fip['floating_ip_address'],
diff --git a/tempest/tests/cmd/sample_streams/calls.subunit b/tempest/tests/cmd/subunit_describe_calls_data/calls.subunit
similarity index 100%
rename from tempest/tests/cmd/sample_streams/calls.subunit
rename to tempest/tests/cmd/subunit_describe_calls_data/calls.subunit
Binary files differ
diff --git a/tempest/tests/cmd/subunit_describe_calls_data/calls_subunit_expected.json b/tempest/tests/cmd/subunit_describe_calls_data/calls_subunit_expected.json
new file mode 100644
index 0000000..53976ee
--- /dev/null
+++ b/tempest/tests/cmd/subunit_describe_calls_data/calls_subunit_expected.json
@@ -0,0 +1,87 @@
+{"bar":[
+      {
+         "name":"AgentsAdminTestJSON:setUp",
+         "request_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"common\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86_64-424013832\", \"os\": \"linux\"}}",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"common\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86_64-424013832\", \"os\": \"linux\", \"agent_id\": 1}}",
+         "response_headers":"{'status': '200', 'content-length': '203', 'x-compute-request-id': 'req-25ddaae2-0ef1-40d1-8228-59bd64a7e75b', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents",
+         "verb":"POST"
+},
+      {
+         "name":"AgentsAdminTestJSON:test_create_agent",
+         "request_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"kvm\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86-252246646\", \"os\": \"win\"}}",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"kvm\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86-252246646\", \"os\": \"win\", \"agent_id\": 2}}",
+         "response_headers":"{'status': '200', 'content-length': '195', 'x-compute-request-id': 'req-b4136f06-c015-4e7e-995f-c43831e3ecce', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents",
+         "verb":"POST"
+},
+      {
+         "name":"AgentsAdminTestJSON:tearDown",
+         "request_body":"None",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"",
+         "response_headers":"{'status': '200', 'content-length': '0', 'x-compute-request-id': 'req-ee905fd6-a5b5-4da4-8c37-5363cb25bd9d', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents/1",
+         "verb":"DELETE"
+},
+      {
+         "name":"AgentsAdminTestJSON:_run_cleanups",
+         "request_body":"None",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_headers":"{'status': '200', 'content-length': '0', 'x-compute-request-id': 'req-e912cac0-63e0-4679-a68a-b6d18ddca074', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents/2",
+         "verb":"DELETE"
+}], "foo":[
+      {
+         "name":"AgentsAdminTestJSON:setUp",
+         "request_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"common\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86_64-948635295\", \"os\": \"linux\"}}",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"{\"agent\": {\"url\": \"xxx://xxxx/xxx/xxx\", \"hypervisor\": \"common\", \"md5hash\": \"add6bb58e139be103324d04d82d8f545\", \"version\": \"7.0\", \"architecture\": \"tempest-x86_64-948635295\", \"os\": \"linux\", \"agent_id\": 3}}",
+         "response_headers":"{'status': '200', 'content-length': '203', 'x-compute-request-id': 'req-ccd2116d-04b1-4ffe-ae32-fb623f68bf1c', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents",
+         "verb":"POST"
+},
+      {
+         "name":"AgentsAdminTestJSON:test_delete_agent",
+         "request_body":"None",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"",
+         "response_headers":"{'status': '200', 'content-length': '0', 'x-compute-request-id': 'req-6e7fa28f-ae61-4388-9a78-947c58bc0588', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents/3",
+         "verb":"DELETE"
+},
+      {
+         "name":"AgentsAdminTestJSON:test_delete_agent",
+         "request_body":"None",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_body":"{\"agents\": []}",
+         "response_headers":"{'status': '200', 'content-length': '14', 'content-location': 'http://23.253.76.97:8774/v2.1/cf6b1933fe5b476fbbabb876f6d1b924/os-agents', 'x-compute-request-id': 'req-e41aa9b4-41a6-4138-ae04-220b768eb644', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': 'application/json'}",
+         "service":"Nova",
+         "status_code":"200",
+         "url":"v2.1/<id>/os-agents",
+         "verb":"GET"
+},
+      {
+         "name":"AgentsAdminTestJSON:tearDown",
+         "request_body":"None",
+         "request_headers":"{'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
+         "response_headers":"{'status': '404', 'content-length': '82', 'x-compute-request-id': 'req-e297aeea-91cf-4f26-b49c-8f46b1b7a926', 'vary': 'X-OpenStack-Nova-API-Version', 'connection': 'close', 'x-openstack-nova-api-version': '2.1', 'date': 'Tue, 02 Feb 2016 03:27:02 GMT', 'content-type': 'application/json; charset=UTF-8'}",
+         "service":"Nova",
+         "status_code":"404",
+         "url":"v2.1/<id>/os-agents/3",
+         "verb":"DELETE"
+}]}
\ No newline at end of file
diff --git a/tempest/tests/cmd/test_subunit_describe_calls.py b/tempest/tests/cmd/test_subunit_describe_calls.py
index cb34ba6..4fed84a 100644
--- a/tempest/tests/cmd/test_subunit_describe_calls.py
+++ b/tempest/tests/cmd/test_subunit_describe_calls.py
@@ -14,220 +14,422 @@
 # License for the specific language governing permissions and limitations
 # under the License.
 
+import argparse
+from io import StringIO
 import os
+import shutil
 import subprocess
+import sys
 import tempfile
+from unittest import mock
+from unittest.mock import patch
 
+
+from oslo_serialization import jsonutils as json
 from tempest.cmd import subunit_describe_calls
 from tempest.tests import base
 
 
-class TestSubunitDescribeCalls(base.TestCase):
-    def test_return_code(self):
-        subunit_file = os.path.join(
-            os.path.dirname(os.path.abspath(__file__)),
-            'sample_streams/calls.subunit')
-        p = subprocess.Popen([
-            'subunit-describe-calls', '-s', subunit_file,
-            '-o', tempfile.mkstemp()[1]], stdin=subprocess.PIPE)
-        p.communicate()
-        self.assertEqual(0, p.returncode)
+class TestArgumentParser(base.TestCase):
+    def test_init(self):
+        test_object = subunit_describe_calls.ArgumentParser()
+        self.assertEqual("subunit-describe-calls", test_object.prog)
+        self.assertEqual(subunit_describe_calls.DESCRIPTION,
+                         test_object.description)
 
-    def test_verbose(self):
-        subunit_file = os.path.join(
-            os.path.dirname(os.path.abspath(__file__)),
-            'sample_streams/calls.subunit')
-        p = subprocess.Popen([
-            'subunit-describe-calls', '-s', subunit_file,
-            '-v'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
-        stdout = p.communicate()
-        self.assertEqual(0, p.returncode)
-        self.assertIn(b'- request headers:', stdout[0])
-        self.assertIn(b'- request body:', stdout[0])
-        self.assertIn(b'- response headers:', stdout[0])
-        self.assertIn(b'- response body:', stdout[0])
 
-    def test_return_code_no_output(self):
-        subunit_file = os.path.join(
+class TestUrlParser(base.TestCase):
+    services_custom_ports = {
+        "18776": "Block Storage",
+        "18774": "Nova",
+        "18773": "Nova-API",
+        "18386": "Sahara",
+        "35358": "Keystone",
+        "19292": "Glance",
+        "19696": "Neutron",
+        "16000": "Swift",
+        "18004": "Heat",
+        "18777": "Ceilometer",
+        "10080": "Horizon",
+        "18080": "Swift",
+        "1873": "rsync",
+        "13260": "iSCSI",
+        "13306": "MySQL",
+        "15672": "AMQP",
+        "18082": "murano"}
+
+    def setUp(self):
+        super(TestUrlParser, self).setUp()
+        self.test_object = subunit_describe_calls.UrlParser()
+
+    def test_get_service_default_ports(self):
+        base_url = "http://site.something.com:"
+        for port in self.test_object.services:
+            url = base_url + port + "/v2/action"
+            service = self.test_object.services[port]
+            self.assertEqual(service, self.test_object.get_service(url))
+
+    def test_get_service_custom_ports(self):
+        self.test_object = subunit_describe_calls.\
+            UrlParser(services=self.services_custom_ports)
+        base_url = "http://site.something.com:"
+        for port in self.services_custom_ports:
+            url = base_url + port + "/v2/action"
+            service = self.services_custom_ports[port]
+            self.assertEqual(service, self.test_object.get_service(url))
+
+    def test_get_service_port_not_found(self):
+        url = "https://site.somewhere.com:1234/v2/action"
+        self.assertEqual("Unknown", self.test_object.get_service(url))
+        self.assertEqual("Unknown", self.test_object.get_service(""))
+
+    def test_parse_details_none(self):
+        self.assertIsNone(self.test_object.parse_details(None))
+
+    def test_url_path_ports(self):
+        uuid_sample1 = "3715e0bb-b1b3-4291-aa13-2c86c3b9ec93"
+        uuid_sample2 = "2715e0bb-b1b4-4291-aa13-2c86c3b9ec88"
+
+        # test http url
+        host = "http://host.company.com"
+        url = host + ":8776/v3/" + uuid_sample1 + "/types/" + \
+            uuid_sample2 + "/extra_specs"
+        self.assertEqual("v3/<uuid>/types/<uuid>/extra_specs",
+                         self.test_object.url_path(url))
+        url = host + ":8774/v2.1/servers/" + uuid_sample1
+        self.assertEqual("v2.1/servers/<uuid>",
+                         self.test_object.url_path(url))
+        # test https url
+        host = "https://host.company.com"
+        url = host + ":8776/v3/" + uuid_sample1 + "/types/" + \
+            uuid_sample2 + "/extra_specs"
+        self.assertEqual("v3/<uuid>/types/<uuid>/extra_specs",
+                         self.test_object.url_path(url))
+        url = host + ":8774/v2.1/servers/" + uuid_sample1
+        self.assertEqual("v2.1/servers/<uuid>",
+                         self.test_object.url_path(url))
+
+    def test_url_path_no_match(self):
+        host_port = 'https://host.company.com:1234/'
+        url = 'v2/action/no/special/data'
+        self.assertEqual(url, self.test_object.url_path(host_port + url))
+        url = 'data'
+        self.assertEqual(url, self.test_object.url_path(url))
+
+
+class TestCliBase(base.TestCase):
+    """Base class for share code on all CLI sub-process testing"""
+
+    def setUp(self):
+        super(TestCliBase, self).setUp()
+        self._subunit_file = os.path.join(
             os.path.dirname(os.path.abspath(__file__)),
-            'sample_streams/calls.subunit')
+            'subunit_describe_calls_data', 'calls.subunit')
+
+    def _bytes_to_string(self, data):
+        if isinstance(data, (bytes, bytearray)):
+            data = str(data, 'utf-8')
+        return data
+
+    def _assert_cli_message(self, data):
+        data = self._bytes_to_string(data)
+        self.assertIn("Running subunit_describe_calls ...", data)
+
+    def _assert_deprecated_warning(self, stdout):
+        self.assertIn(
+            b"Use of: 'subunit-describe-calls' is deprecated, "
+            b"please use: 'tempest subunit-describe-calls'", stdout)
+
+    def _assert_expect_json(self, json_data):
+        expected_file_name = os.path.join(
+            os.path.dirname(os.path.abspath(__file__)),
+            'subunit_describe_calls_data', 'calls_subunit_expected.json')
+        with open(expected_file_name, "rb") as read_file:
+            expected_result = json.load(read_file)
+        self.assertDictEqual(expected_result, json_data)
+
+    def _assert_headers_and_bodies(self, data):
+        data = self._bytes_to_string(data)
+        self.assertIn('- request headers:', data)
+        self.assertIn('- request body:', data)
+        self.assertIn('- response headers:', data)
+        self.assertIn('- response body:', data)
+
+    def _assert_methods_details(self, data):
+        data = self._bytes_to_string(data)
+        self.assertIn('foo', data)
+        self.assertIn('- 200 POST request for Nova to v2.1/<id>/',
+                      data)
+        self.assertIn('- 200 DELETE request for Nova to v2.1/<id>/',
+                      data)
+        self.assertIn('- 200 GET request for Nova to v2.1/<id>/',
+                      data)
+        self.assertIn('- 404 DELETE request for Nova to v2.1/<id>/',
+                      data)
+
+    def _assert_mutual_exclusive_message(self, stderr):
+        self.assertIn(b"usage: subunit-describe-calls "
+                      b"[-h] [-s [<subunit file>]]", stderr)
+        self.assertIn(b"[-n <non subunit name>] [-o <output file>]",
+                      stderr)
+        self.assertIn(b"[-p <ports file>] [-v | -a]", stderr)
+        self.assertIn(
+            b"subunit-describe-calls: error: argument -v/--verbose: "
+            b"not allowed with argument -a/--all-stdout", stderr)
+
+    def _assert_no_headers_and_bodies(self, data):
+        data = self._bytes_to_string(data)
+        self.assertNotIn('- request headers:', data)
+        self.assertNotIn('- request body:', data)
+        self.assertNotIn('- response headers:', data)
+        self.assertNotIn('- response body:', data)
+
+
+class TestMainCli(TestCliBase):
+    """Test cases that use subunit_describe_calls module main interface
+
+    via subprocess calls to make sure the total user experience
+    is well defined and tested. This interface is deprecated.
+    Note: these test do not affect code coverage percentages.
+    """
+
+    def test_main_output_file(self):
+        temp_file = tempfile.mkstemp()[1]
         p = subprocess.Popen([
-            'subunit-describe-calls', '-s', subunit_file],
-            stdin=subprocess.PIPE, stdout=subprocess.PIPE)
-        stdout = p.communicate()
+            'subunit-describe-calls', '-s', self._subunit_file,
+            '-o', temp_file], stdin=subprocess.PIPE,
+            stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
         self.assertEqual(0, p.returncode)
-        self.assertIn(b'foo', stdout[0])
-        self.assertIn(b'- 200 POST request for Nova to v2.1/<id>/',
-                      stdout[0])
-        self.assertIn(b'- 200 DELETE request for Nova to v2.1/<id>/',
-                      stdout[0])
-        self.assertIn(b'- 200 GET request for Nova to v2.1/<id>/',
-                      stdout[0])
-        self.assertIn(b'- 404 DELETE request for Nova to v2.1/<id>/',
-                      stdout[0])
-        self.assertNotIn(b'- request headers:', stdout[0])
-        self.assertNotIn(b'- request body:', stdout[0])
-        self.assertNotIn(b'- response headers:', stdout[0])
-        self.assertNotIn(b'- response body:', stdout[0])
+        self._assert_cli_message(stdout)
+        self._assert_deprecated_warning(stdout)
+        with open(temp_file, 'r') as file:
+            data = json.loads(file.read())
+        self._assert_expect_json(data)
+
+    def test_main_verbose(self):
+        p = subprocess.Popen([
+            'subunit-describe-calls', '-s', self._subunit_file,
+            '-v'], stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_deprecated_warning(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_headers_and_bodies(stdout)
+
+    def test_main_all_stdout(self):
+        p = subprocess.Popen([
+            'subunit-describe-calls', '-s', self._subunit_file,
+            '--all-stdout'], stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_deprecated_warning(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_headers_and_bodies(stdout)
+
+    def test_main(self):
+        p = subprocess.Popen([
+            'subunit-describe-calls', '-s', self._subunit_file],
+            stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_deprecated_warning(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_no_headers_and_bodies(stdout)
+
+    def test_main_verbose_and_all_stdout(self):
+        p = subprocess.Popen([
+            'subunit-describe-calls', '-s', self._subunit_file,
+            '-a', '-v'],
+            stdin=subprocess.PIPE, stdout=subprocess.PIPE,
+            stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(2, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_deprecated_warning(stdout)
+        self._assert_mutual_exclusive_message(stderr)
+
+
+class TestCli(TestCliBase):
+    """Test cases that use tempest subunit_describe_calls cliff interface
+
+    via subprocess calls to make sure the total user experience
+    is well defined and tested.
+    Note: these test do not affect code coverage percentages.
+    """
+
+    def _assert_cliff_verbose(self, stdout):
+        self.assertIn(b'tempest initialize_app', stdout)
+        self.assertIn(b'prepare_to_run_command TempestSubunitDescribeCalls',
+                      stdout)
+        self.assertIn(b'tempest clean_up TempestSubunitDescribeCalls',
+                      stdout)
+
+    def test_run_all_stdout(self):
+        p = subprocess.Popen(['tempest', 'subunit-describe-calls',
+                              '-s', self._subunit_file, '-a'],
+                             stdin=subprocess.PIPE,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_headers_and_bodies(stdout)
+
+    def test_run_verbose(self):
+        p = subprocess.Popen(['tempest', 'subunit-describe-calls',
+                              '-s', self._subunit_file, '-v'],
+                             stdin=subprocess.PIPE,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_no_headers_and_bodies(stdout)
+        self._assert_cliff_verbose(stderr)
+
+    def test_run_min(self):
+        p = subprocess.Popen(['tempest', 'subunit-describe-calls',
+                              '-s', self._subunit_file],
+                             stdin=subprocess.PIPE,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_methods_details(stdout)
+        self._assert_no_headers_and_bodies(stdout)
+
+    def test_run_verbose_all_stdout(self):
+        """Test Cliff -v argument
+
+        Since Cliff framework has a argument at the
+        abstract command level the -v or --verbose for
+        this command is not processed as a boolean.
+        So the use of verbose only exists for the
+        deprecated main CLI interface.  When the
+        main is deleted this test would not be needed.
+        """
+        p = subprocess.Popen(['tempest', 'subunit-describe-calls',
+                              '-s', self._subunit_file, '-a', '-v'],
+                             stdin=subprocess.PIPE,
+                             stdout=subprocess.PIPE,
+                             stderr=subprocess.PIPE)
+        stdout, stderr = p.communicate()
+        self.assertEqual(0, p.returncode)
+        self._assert_cli_message(stdout)
+        self._assert_cliff_verbose(stderr)
+        self._assert_methods_details(stdout)
+
+
+class TestSubunitDescribeCalls(TestCliBase):
+    """Test cases use the subunit_describe_calls module interface
+
+    and effect code coverage reporting
+    """
+
+    def setUp(self):
+        super(TestSubunitDescribeCalls, self).setUp()
+        self.test_object = subunit_describe_calls.TempestSubunitDescribeCalls(
+            app=mock.Mock(),
+            app_args=mock.Mock(spec=argparse.Namespace))
 
     def test_parse(self):
-        subunit_file = os.path.join(
-            os.path.dirname(os.path.abspath(__file__)),
-            'sample_streams/calls.subunit')
-        parser = subunit_describe_calls.parse(
-            open(subunit_file), "pythonlogging", None)
-        expected_result = {
-            'bar': [{
-                'name': 'AgentsAdminTestJSON:setUp',
-                'request_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "common", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86_64-424013832", "os": "linux"}}',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "common", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86_64-424013832", "os": "linux", '
-                '"agent_id": 1}}',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'203', 'x-compute-request-id': "
-                "'req-25ddaae2-0ef1-40d1-8228-59bd64a7e75b', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents',
-                'verb': 'POST'}, {
-                'name': 'AgentsAdminTestJSON:test_create_agent',
-                'request_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "kvm", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86-252246646", "os": "win"}}',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "kvm", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86-252246646", "os": "win", '
-                '"agent_id": 2}}',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'195', 'x-compute-request-id': "
-                "'req-b4136f06-c015-4e7e-995f-c43831e3ecce', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents',
-                'verb': 'POST'}, {
-                'name': 'AgentsAdminTestJSON:tearDown',
-                'request_body': 'None',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'0', 'x-compute-request-id': "
-                "'req-ee905fd6-a5b5-4da4-8c37-5363cb25bd9d', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents/1',
-                'verb': 'DELETE'}, {
-                'name': 'AgentsAdminTestJSON:_run_cleanups',
-                'request_body': 'None',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_headers': "{'status': '200', 'content-length': "
-                "'0', 'x-compute-request-id': "
-                "'req-e912cac0-63e0-4679-a68a-b6d18ddca074', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:00 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents/2',
-                'verb': 'DELETE'}],
-            'foo': [{
-                'name': 'AgentsAdminTestJSON:setUp',
-                'request_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "common", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86_64-948635295", "os": "linux"}}',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '{"agent": {"url": "xxx://xxxx/xxx/xxx", '
-                '"hypervisor": "common", "md5hash": '
-                '"add6bb58e139be103324d04d82d8f545", "version": "7.0", '
-                '"architecture": "tempest-x86_64-948635295", "os": "linux", '
-                '"agent_id": 3}}',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'203', 'x-compute-request-id': "
-                "'req-ccd2116d-04b1-4ffe-ae32-fb623f68bf1c', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents',
-                'verb': 'POST'}, {
-                'name': 'AgentsAdminTestJSON:test_delete_agent',
-                'request_body': 'None',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'0', 'x-compute-request-id': "
-                "'req-6e7fa28f-ae61-4388-9a78-947c58bc0588', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents/3',
-                'verb': 'DELETE'}, {
-                'name': 'AgentsAdminTestJSON:test_delete_agent',
-                'request_body': 'None',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_body': '{"agents": []}',
-                'response_headers': "{'status': '200', 'content-length': "
-                "'14', 'content-location': "
-                "'http://23.253.76.97:8774/v2.1/"
-                "cf6b1933fe5b476fbbabb876f6d1b924/os-agents', "
-                "'x-compute-request-id': "
-                "'req-e41aa9b4-41a6-4138-ae04-220b768eb644', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:01 GMT', 'content-type': "
-                "'application/json'}",
-                'service': 'Nova',
-                'status_code': '200',
-                'url': 'v2.1/<id>/os-agents',
-                'verb': 'GET'}, {
-                'name': 'AgentsAdminTestJSON:tearDown',
-                'request_body': 'None',
-                'request_headers': "{'Content-Type': 'application/json', "
-                "'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}",
-                'response_headers': "{'status': '404', 'content-length': "
-                "'82', 'x-compute-request-id': "
-                "'req-e297aeea-91cf-4f26-b49c-8f46b1b7a926', 'vary': "
-                "'X-OpenStack-Nova-API-Version', 'connection': 'close', "
-                "'x-openstack-nova-api-version': '2.1', 'date': "
-                "'Tue, 02 Feb 2016 03:27:02 GMT', 'content-type': "
-                "'application/json; charset=UTF-8'}",
-                'service': 'Nova',
-                'status_code': '404',
-                'url': 'v2.1/<id>/os-agents/3',
-                'verb': 'DELETE'}]}
+        with open(self._subunit_file, 'r') as read_file:
+            parser = subunit_describe_calls.parse(
+                read_file, "pythonlogging", None)
+        self._assert_expect_json(parser.test_logs)
 
-        self.assertEqual(expected_result, parser.test_logs)
+    def test_get_description(self):
+        self.assertEqual(subunit_describe_calls.DESCRIPTION,
+                         self.test_object.get_description())
+
+    def test_get_parser_default_min(self):
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args([])
+        self.assertIsNone(parsed_args.output_file)
+        self.assertIsNone(parsed_args.ports)
+        self.assertFalse(parsed_args.all_stdout)
+        self.assertEqual(parsed_args.subunit, sys.stdin)
+
+    def test_get_parser_default_max(self):
+        temp_dir = tempfile.mkdtemp(prefix="parser")
+        self.addCleanup(shutil.rmtree, temp_dir, ignore_errors=True)
+        outfile_name = os.path.join(temp_dir, 'output.json')
+        open(outfile_name, 'a').close()
+        portfile_name = os.path.join(temp_dir, 'ports.json')
+        open(portfile_name, 'a').close()
+
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(["-a", "-o " + outfile_name,
+                                         "-p " + portfile_name])
+
+        self.assertIsNotNone(parsed_args.output_file)
+        self.assertIsNotNone(parsed_args.ports)
+        self.assertTrue(parsed_args.all_stdout)
+        self.assertEqual(parsed_args.subunit, sys.stdin)
+
+    def test_take_action_min(self):
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(["-s" + self._subunit_file],)
+        with patch('sys.stdout', new=StringIO()) as mock_stdout:
+            self.test_object.take_action(parsed_args)
+
+        stdout_data = mock_stdout.getvalue()
+        self._assert_methods_details(stdout_data)
+        self._assert_no_headers_and_bodies(stdout_data)
+
+    def test_take_action_all_stdout(self):
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(["-as" + self._subunit_file],)
+        with patch('sys.stdout', new=StringIO()) as mock_stdout:
+            self.test_object.take_action(parsed_args)
+
+        stdout_data = mock_stdout.getvalue()
+        self._assert_methods_details(stdout_data)
+        self._assert_headers_and_bodies(stdout_data)
+
+    def test_take_action_outfile_files(self):
+        temp_file = tempfile.mkstemp()[1]
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(
+            ["-as" + self._subunit_file, '-o', temp_file], )
+        with patch('sys.stdout', new=StringIO()) as mock_stdout:
+            self.test_object.take_action(parsed_args)
+        stdout_data = mock_stdout.getvalue()
+        self._assert_cli_message(stdout_data)
+        with open(temp_file, 'r') as file:
+            data = json.loads(file.read())
+        self._assert_expect_json(data)
+
+    def test_take_action_no_items(self):
+        temp_file = tempfile.mkstemp()[1]
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(
+            ["-as" + temp_file], )
+        with patch('sys.stdout', new=StringIO()) as mock_stdout:
+            self.test_object.take_action(parsed_args)
+        stdout_data = mock_stdout.getvalue()
+        self._assert_cli_message(stdout_data)
+
+    def test_take_action_exception(self):
+        parser = self.test_object.get_parser('NAME')
+        parsed_args = parser.parse_args(["-s" + self._subunit_file],)
+        with patch('sys.stderr', new=StringIO()) as mock_stderr:
+            with patch('tempest.cmd.subunit_describe_calls.entry_point') \
+                    as mock_method:
+                mock_method.side_effect = OSError()
+                self.assertRaises(OSError, self.test_object.take_action,
+                                  parsed_args)
+                stderr_data = mock_stderr.getvalue()
+
+        self.assertIn("Traceback (most recent call last):", stderr_data)
+        self.assertIn("entry_point(parsed_args)", stderr_data)
diff --git a/tempest/tests/lib/cmd/test_check_uuid.py b/tempest/tests/lib/cmd/test_check_uuid.py
index 130f90a..28ebca1 100644
--- a/tempest/tests/lib/cmd/test_check_uuid.py
+++ b/tempest/tests/lib/cmd/test_check_uuid.py
@@ -11,13 +11,56 @@
 # under the License.
 
 import importlib
+import os
+import sys
 import tempfile
 from unittest import mock
 
+import fixtures
+
 from tempest.lib.cmd import check_uuid
 from tempest.tests import base
 
 
+class TestCLInterface(base.TestCase):
+    CODE = "import unittest\n" \
+           "class TestClass(unittest.TestCase):\n" \
+           "    def test_tests(self):\n" \
+           "        pass"
+
+    def create_tests_file(self, directory):
+        with open(directory + "/__init__.py", "w"):
+            pass
+
+        tests_file = directory + "/tests.py"
+        with open(tests_file, "w") as fake_file:
+            fake_file.write(TestCLInterface.CODE)
+
+        return tests_file
+
+    def test_fix_argument_no(self):
+        temp_dir = self.useFixture(fixtures.TempDir(rootdir="."))
+        tests_file = self.create_tests_file(temp_dir.path)
+
+        sys.argv = [sys.argv[0]] + ["--package",
+                                    os.path.relpath(temp_dir.path)]
+
+        self.assertRaises(SystemExit, check_uuid.run)
+        with open(tests_file, "r") as f:
+            self.assertTrue(TestCLInterface.CODE == f.read())
+
+    def test_fix_argument_yes(self):
+        temp_dir = self.useFixture(fixtures.TempDir(rootdir="."))
+        tests_file = self.create_tests_file(temp_dir.path)
+
+        sys.argv = [sys.argv[0]] + ["--fix", "--package",
+                                    os.path.relpath(temp_dir.path)]
+
+        check_uuid.run()
+        with open(tests_file, "r") as f:
+            self.assertTrue(TestCLInterface.CODE != f.read())
+
+
 class TestSourcePatcher(base.TestCase):
     def test_add_patch(self):
         patcher = check_uuid.SourcePatcher()
diff --git a/tempest/tests/lib/services/volume/v3/test_backups_client.py b/tempest/tests/lib/services/volume/v3/test_backups_client.py
index 97e1132..ca7918a 100644
--- a/tempest/tests/lib/services/volume/v3/test_backups_client.py
+++ b/tempest/tests/lib/services/volume/v3/test_backups_client.py
@@ -45,6 +45,8 @@
                 "availability_zone": "az1",
                 "container": "volumebackups",
                 "created_at": "2013-04-02T10:35:27.000000",
+                "updated_at": "2013-04-02T10:39:27.000000",
+                "data_timestamp": "2013-04-02T10:35:27.000000",
                 "description": None,
                 "fail_reason": None,
                 "id": "2ef47aee-8844-490c-804d-2a8efe561c65",
@@ -64,7 +66,6 @@
                 "user_id": "515ba0dd59f84f25a6a084a45d8d93b2",
                 "size": 1,
                 "status": "available",
-                "updated_at": "2013-04-02T10:35:27.000000",
                 "volume_id": "e5185058-943a-4cb4-96d9-72c184c337d6",
                 "is_incremental": True,
                 "has_dependent_backups": False
diff --git a/tools/generate-tempest-plugins-list.py b/tools/generate-tempest-plugins-list.py
index 530ce5e..618c388 100644
--- a/tools/generate-tempest-plugins-list.py
+++ b/tools/generate-tempest-plugins-list.py
@@ -41,7 +41,7 @@
     'x/intel-nfv-ci-tests',  # https://review.opendev.org/#/c/634640/
     'openstack/networking-generic-switch',
     # https://review.opendev.org/#/c/634846/
-    'openstack/networking-l2gw-tempest-plugin',
+    'x/networking-l2gw-tempest-plugin',
     # https://review.opendev.org/#/c/635093/
     'openstack/networking-midonet',  # https://review.opendev.org/#/c/635096/
     'x/networking-plumgrid',  # https://review.opendev.org/#/c/635096/