diff --git a/tempest/api/database/flavors/test_flavors.py b/tempest/api/database/flavors/test_flavors.py
index 62c1e05..f75b867 100644
--- a/tempest/api/database/flavors/test_flavors.py
+++ b/tempest/api/database/flavors/test_flavors.py
@@ -28,7 +28,7 @@
     @test.idempotent_id('c94b825e-0132-4686-8049-8a4a2bc09525')
     def test_get_db_flavor(self):
         # The expected flavor details should be returned
-        flavor = (self.client.get_db_flavor_details(self.db_flavor_ref)
+        flavor = (self.client.show_db_flavor(self.db_flavor_ref)
                   ['flavor'])
         self.assertEqual(self.db_flavor_ref, str(flavor['id']))
         self.assertIn('ram', flavor)
@@ -38,7 +38,7 @@
     @test.attr(type='smoke')
     @test.idempotent_id('685025d6-0cec-4673-8a8d-995cb8e0d3bb')
     def test_list_db_flavors(self):
-        flavor = (self.client.get_db_flavor_details(self.db_flavor_ref)
+        flavor = (self.client.show_db_flavor(self.db_flavor_ref)
                   ['flavor'])
         # List of all flavors should contain the expected flavor
         flavors = self.client.list_db_flavors()['flavors']
@@ -67,7 +67,7 @@
                          (os_flavors, db_flavors))
         for os_flavor in os_flavors:
             db_flavor =\
-                self.client.get_db_flavor_details(os_flavor['id'])['flavor']
+                self.client.show_db_flavor(os_flavor['id'])['flavor']
             self._check_values(['id', 'name', 'ram'], db_flavor, os_flavor)
             self._check_values(['disk', 'vcpus', 'swap'], db_flavor, os_flavor,
                                in_db=False)
diff --git a/tempest/api/database/flavors/test_flavors_negative.py b/tempest/api/database/flavors/test_flavors_negative.py
index 68cb7d6..3dee96f 100644
--- a/tempest/api/database/flavors/test_flavors_negative.py
+++ b/tempest/api/database/flavors/test_flavors_negative.py
@@ -31,4 +31,4 @@
     def test_get_non_existent_db_flavor(self):
         # flavor details are not returned for non-existent flavors
         self.assertRaises(lib_exc.NotFound,
-                          self.client.get_db_flavor_details, -1)
+                          self.client.show_db_flavor, -1)
diff --git a/tempest/api/identity/admin/v3/test_credentials.py b/tempest/api/identity/admin/v3/test_credentials.py
index 048c53a..5e1c3cc 100644
--- a/tempest/api/identity/admin/v3/test_credentials.py
+++ b/tempest/api/identity/admin/v3/test_credentials.py
@@ -76,7 +76,7 @@
         self.assertEqual(update_body['blob']['access'], new_keys[0])
         self.assertEqual(update_body['blob']['secret'], new_keys[1])
 
-        get_body = self.creds_client.get_credential(cred['id'])['credential']
+        get_body = self.creds_client.show_credential(cred['id'])['credential']
         for value1 in self.creds_list[0]:
             self.assertEqual(update_body[value1],
                              get_body[value1])
diff --git a/tempest/api/identity/admin/v3/test_policies.py b/tempest/api/identity/admin/v3/test_policies.py
index 44e5c7b..f38d25d 100644
--- a/tempest/api/identity/admin/v3/test_policies.py
+++ b/tempest/api/identity/admin/v3/test_policies.py
@@ -64,7 +64,7 @@
             policy['id'], type=update_type)['policy']
         self.assertIn('type', data)
         # Assertion for updated value with fetched value
-        fetched_policy = self.policy_client.get_policy(policy['id'])['policy']
+        fetched_policy = self.policy_client.show_policy(policy['id'])['policy']
         self.assertIn('id', fetched_policy)
         self.assertIn('blob', fetched_policy)
         self.assertIn('type', fetched_policy)
diff --git a/tempest/api/identity/admin/v3/test_regions.py b/tempest/api/identity/admin/v3/test_regions.py
index 0dbbae0..ec1b12e 100644
--- a/tempest/api/identity/admin/v3/test_regions.py
+++ b/tempest/api/identity/admin/v3/test_regions.py
@@ -46,7 +46,7 @@
     def _delete_region(self, region_id):
         self.client.delete_region(region_id)
         self.assertRaises(lib_exc.NotFound,
-                          self.client.get_region, region_id)
+                          self.client.show_region, region_id)
 
     @test.idempotent_id('56186092-82e4-43f2-b954-91013218ba42')
     def test_create_update_get_delete_region(self):
@@ -68,7 +68,7 @@
         self.assertEqual(self.setup_regions[1]['id'],
                          region['parent_region_id'])
         # Get the details of region
-        region = self.client.get_region(region['id'])['region']
+        region = self.client.show_region(region['id'])['region']
         self.assertEqual(r_alt_description, region['description'])
         self.assertEqual(self.setup_regions[1]['id'],
                          region['parent_region_id'])
diff --git a/tempest/api/identity/admin/v3/test_users.py b/tempest/api/identity/admin/v3/test_users.py
index b56c9e6..60abde7 100644
--- a/tempest/api/identity/admin/v3/test_users.py
+++ b/tempest/api/identity/admin/v3/test_users.py
@@ -13,6 +13,8 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import time
+
 from tempest.api.identity import base
 from tempest.common.utils import data_utils
 from tempest import test
@@ -76,6 +78,14 @@
         new_password = data_utils.rand_name('pass1')
         self.client.update_user_password(user['id'], new_password,
                                          original_password)
+        # TODO(lbragstad): Sleeping after the response status has been checked
+        # and the body loaded as JSON allows requests to fail-fast. The sleep
+        # is necessary because keystone will err on the side of security and
+        # invalidate tokens within a small margin of error (within the same
+        # wall clock second) after a revocation event is issued (such as a
+        # password change). Remove this once keystone and Fernet support
+        # sub-second precision, see bug 1517697 for more details.
+        time.sleep(1)
         resp = self.token.auth(user_id=user['id'],
                                password=new_password).response
         subject_token = resp['x-subject-token']
diff --git a/tempest/api/identity/v2/test_ec2_credentials.py b/tempest/api/identity/v2/test_ec2_credentials.py
index 763d8de..88161a3 100644
--- a/tempest/api/identity/v2/test_ec2_credentials.py
+++ b/tempest/api/identity/v2/test_ec2_credentials.py
@@ -38,7 +38,7 @@
         """Create user ec2 credentials."""
         resp = self.non_admin_client.create_user_ec2_credentials(
             self.creds.credentials.user_id,
-            self.creds.credentials.tenant_id)["credential"]
+            tenant_id=self.creds.credentials.tenant_id)["credential"]
         access = resp['access']
         self.addCleanup(
             self.non_admin_client.delete_user_ec2_credentials,
@@ -56,12 +56,12 @@
         # create first ec2 credentials
         creds1 = self.non_admin_client.create_user_ec2_credentials(
             self.creds.credentials.user_id,
-            self.creds.credentials.tenant_id)["credential"]
+            tenant_id=self.creds.credentials.tenant_id)["credential"]
         created_creds.append(creds1['access'])
         # create second ec2 credentials
         creds2 = self.non_admin_client.create_user_ec2_credentials(
             self.creds.credentials.user_id,
-            self.creds.credentials.tenant_id)["credential"]
+            tenant_id=self.creds.credentials.tenant_id)["credential"]
         created_creds.append(creds2['access'])
         # add credentials to be cleaned up
         self.addCleanup(
@@ -86,7 +86,7 @@
         """Get the definite user ec2 credentials."""
         resp = self.non_admin_client.create_user_ec2_credentials(
             self.creds.credentials.user_id,
-            self.creds.credentials.tenant_id)["credential"]
+            tenant_id=self.creds.credentials.tenant_id)["credential"]
         self.addCleanup(
             self.non_admin_client.delete_user_ec2_credentials,
             self.creds.credentials.user_id, resp['access'])
@@ -102,7 +102,7 @@
         """Delete user ec2 credentials."""
         resp = self.non_admin_client.create_user_ec2_credentials(
             self.creds.credentials.user_id,
-            self.creds.credentials.tenant_id)["credential"]
+            tenant_id=self.creds.credentials.tenant_id)["credential"]
         access = resp['access']
         self.non_admin_client.delete_user_ec2_credentials(
             self.creds.credentials.user_id, access)
diff --git a/tempest/api/identity/v2/test_users.py b/tempest/api/identity/v2/test_users.py
index 03c6621..5f2a8c4 100644
--- a/tempest/api/identity/v2/test_users.py
+++ b/tempest/api/identity/v2/test_users.py
@@ -56,8 +56,8 @@
             old_pass=new_pass)
 
         # user updates own password
-        resp = self.non_admin_client.update_user_own_password(
-            user_id=user_id, new_pass=new_pass, old_pass=old_pass)['access']
+        self.non_admin_client.update_user_own_password(
+            user_id=user_id, new_pass=new_pass, old_pass=old_pass)
 
         # TODO(lbragstad): Sleeping after the response status has been checked
         # and the body loaded as JSON allows requests to fail-fast. The sleep
@@ -68,8 +68,6 @@
         # sub-second precision.
         time.sleep(1)
 
-        # check authorization with new token
-        self.non_admin_token_client.auth_token(resp['token']['id'])
         # check authorization with new password
         self.non_admin_token_client.auth(self.username,
                                          new_pass,
diff --git a/tempest/api/network/admin/test_l3_agent_scheduler.py b/tempest/api/network/admin/test_l3_agent_scheduler.py
index d5556b8..36747a3 100644
--- a/tempest/api/network/admin/test_l3_agent_scheduler.py
+++ b/tempest/api/network/admin/test_l3_agent_scheduler.py
@@ -97,7 +97,7 @@
         l3_agent_ids = list()
         self.admin_client.add_router_to_l3_agent(
             self.agent['id'],
-            self.router['id'])
+            router_id=self.router['id'])
         body = (
             self.admin_client.list_l3_agents_hosting_router(self.router['id']))
         for agent in body['agents']:
diff --git a/tempest/api/network/base.py b/tempest/api/network/base.py
index b4ea29b..c5a3dff 100644
--- a/tempest/api/network/base.py
+++ b/tempest/api/network/base.py
@@ -98,9 +98,12 @@
                     floating_ip['id'])
 
             # Clean up metering label rules
+            # Not all classes in the hierarchy have the client class variable
+            if len(cls.metering_label_rules) > 0:
+                label_rules_client = cls.admin_metering_label_rules_client
             for metering_label_rule in cls.metering_label_rules:
                 cls._try_delete_resource(
-                    cls.admin_client.delete_metering_label_rule,
+                    label_rules_client.delete_metering_label_rule,
                     metering_label_rule['id'])
             # Clean up metering labels
             for metering_label in cls.metering_labels:
@@ -273,6 +276,8 @@
         cls.admin_ports_client = cls.os_adm.ports_client
         cls.admin_floating_ips_client = cls.os_adm.floating_ips_client
         cls.admin_metering_labels_client = cls.os_adm.metering_labels_client
+        cls.admin_metering_label_rules_client = (
+            cls.os_adm.metering_label_rules_client)
 
     @classmethod
     def create_metering_label(cls, name, description):
@@ -288,7 +293,8 @@
     def create_metering_label_rule(cls, remote_ip_prefix, direction,
                                    metering_label_id):
         """Wrapper utility that returns a test metering label rule."""
-        body = cls.admin_client.create_metering_label_rule(
+        client = cls.admin_metering_label_rules_client
+        body = client.create_metering_label_rule(
             remote_ip_prefix=remote_ip_prefix, direction=direction,
             metering_label_id=metering_label_id)
         metering_label_rule = body['metering_label_rule']
diff --git a/tempest/api/network/test_metering_extensions.py b/tempest/api/network/test_metering_extensions.py
index c4021b4..007ba3b 100644
--- a/tempest/api/network/test_metering_extensions.py
+++ b/tempest/api/network/test_metering_extensions.py
@@ -59,12 +59,11 @@
         self.assertEqual(len(labels['metering_labels']), 0)
 
     def _delete_metering_label_rule(self, metering_label_rule_id):
+        client = self.admin_metering_label_rules_client
         # Deletes a rule and verifies if it is deleted or not
-        self.admin_client.delete_metering_label_rule(
-            metering_label_rule_id)
+        client.delete_metering_label_rule(metering_label_rule_id)
         # Asserting that the rule is not found in list after deletion
-        rules = (self.admin_client.list_metering_label_rules(
-                 id=metering_label_rule_id))
+        rules = client.list_metering_label_rules(id=metering_label_rule_id)
         self.assertEqual(len(rules['metering_label_rules']), 0)
 
     @test.idempotent_id('e2fb2f8c-45bf-429a-9f17-171c70444612')
@@ -105,8 +104,9 @@
 
     @test.idempotent_id('cc832399-6681-493b-9d79-0202831a1281')
     def test_list_metering_label_rules(self):
+        client = self.admin_metering_label_rules_client
         # Verify rule filtering
-        body = self.admin_client.list_metering_label_rules(id=33)
+        body = client.list_metering_label_rules(id=33)
         metering_label_rules = body['metering_label_rules']
         self.assertEqual(0, len(metering_label_rules))
 
@@ -115,7 +115,8 @@
         # Creates a rule
         remote_ip_prefix = ("10.0.1.0/24" if self._ip_version == 4
                             else "fd03::/64")
-        body = (self.admin_client.create_metering_label_rule(
+        client = self.admin_metering_label_rules_client
+        body = (client.create_metering_label_rule(
                 remote_ip_prefix=remote_ip_prefix,
                 direction="ingress",
                 metering_label_id=self.metering_label['id']))
@@ -124,14 +125,14 @@
                         metering_label_rule['id'])
         # Assert whether created rules are found in rules list or fail
         # if created rules are not found in rules list
-        rules = (self.admin_client.list_metering_label_rules(
-                 id=metering_label_rule['id']))
+        rules = client.list_metering_label_rules(id=metering_label_rule['id'])
         self.assertEqual(len(rules['metering_label_rules']), 1)
 
     @test.idempotent_id('b7354489-96ea-41f3-9452-bace120fb4a7')
     def test_show_metering_label_rule(self):
         # Verifies the details of a rule
-        body = (self.admin_client.show_metering_label_rule(
+        client = self.admin_metering_label_rules_client
+        body = (client.show_metering_label_rule(
                 self.metering_label_rule['id']))
         metering_label_rule = body['metering_label_rule']
         self.assertEqual(self.metering_label_rule['id'],
diff --git a/tempest/api/volume/admin/test_volume_services.py b/tempest/api/volume/admin/test_volume_services.py
index 6692594..2b7ee45 100644
--- a/tempest/api/volume/admin/test_volume_services.py
+++ b/tempest/api/volume/admin/test_volume_services.py
@@ -39,9 +39,8 @@
 
     @test.idempotent_id('63a3e1ca-37ee-4983-826d-83276a370d25')
     def test_get_service_by_service_binary_name(self):
-        params = {'binary': self.binary_name}
-        services = (self.admin_volume_services_client.list_services(params)
-                    ['services'])
+        services = (self.admin_volume_services_client.list_services(
+            binary=self.binary_name)['services'])
         self.assertNotEqual(0, len(services))
         for service in services:
             self.assertEqual(self.binary_name, service['binary'])
@@ -50,10 +49,9 @@
     def test_get_service_by_host_name(self):
         services_on_host = [service for service in self.services if
                             service['host'] == self.host_name]
-        params = {'host': self.host_name}
 
-        services = (self.admin_volume_services_client.list_services(params)
-                    ['services'])
+        services = (self.admin_volume_services_client.list_services(
+            host=self.host_name)['services'])
 
         # we could have a periodic job checkin between the 2 service
         # lookups, so only compare binary lists.
@@ -65,10 +63,10 @@
 
     @test.idempotent_id('ffa6167c-4497-4944-a464-226bbdb53908')
     def test_get_service_by_service_and_host_name(self):
-        params = {'host': self.host_name, 'binary': self.binary_name}
 
-        services = (self.admin_volume_services_client.list_services(params)
-                    ['services'])
+        services = (self.admin_volume_services_client.list_services(
+            host=self.host_name, binary=self.binary_name))['services']
+
         self.assertEqual(1, len(services))
         self.assertEqual(self.host_name, services[0]['host'])
         self.assertEqual(self.binary_name, services[0]['binary'])
diff --git a/tempest/api_schema/response/compute/v2_1/interfaces.py b/tempest/api_schema/response/compute/v2_1/interfaces.py
deleted file mode 100644
index 130775b..0000000
--- a/tempest/api_schema/response/compute/v2_1/interfaces.py
+++ /dev/null
@@ -1,73 +0,0 @@
-# Copyright 2014 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.api_schema.response.compute.v2_1 import parameter_types
-
-interface_common_info = {
-    'type': 'object',
-    'properties': {
-        'port_state': {'type': 'string'},
-        'fixed_ips': {
-            'type': 'array',
-            'items': {
-                'type': 'object',
-                'properties': {
-                    'subnet_id': {
-                        'type': 'string',
-                        'format': 'uuid'
-                    },
-                    'ip_address': parameter_types.ip_address
-                },
-                'additionalProperties': False,
-                'required': ['subnet_id', 'ip_address']
-            }
-        },
-        'port_id': {'type': 'string', 'format': 'uuid'},
-        'net_id': {'type': 'string', 'format': 'uuid'},
-        'mac_addr': parameter_types.mac_address
-    },
-    'additionalProperties': False,
-    'required': ['port_state', 'fixed_ips', 'port_id', 'net_id', 'mac_addr']
-}
-
-get_create_interfaces = {
-    'status_code': [200],
-    'response_body': {
-        'type': 'object',
-        'properties': {
-            'interfaceAttachment': interface_common_info
-        },
-        'additionalProperties': False,
-        'required': ['interfaceAttachment']
-    }
-}
-
-list_interfaces = {
-    'status_code': [200],
-    'response_body': {
-        'type': 'object',
-        'properties': {
-            'interfaceAttachments': {
-                'type': 'array',
-                'items': interface_common_info
-            }
-        },
-        'additionalProperties': False,
-        'required': ['interfaceAttachments']
-    }
-}
-
-delete_interface = {
-    'status_code': [202]
-}
diff --git a/tempest/api_schema/response/compute/v2_1/volumes.py b/tempest/api_schema/response/compute/v2_1/volumes.py
deleted file mode 100644
index bb34acb..0000000
--- a/tempest/api_schema/response/compute/v2_1/volumes.py
+++ /dev/null
@@ -1,120 +0,0 @@
-# Copyright 2014 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.
-
-create_get_volume = {
-    'status_code': [200],
-    'response_body': {
-        'type': 'object',
-        'properties': {
-            'volume': {
-                'type': 'object',
-                'properties': {
-                    'id': {'type': 'string'},
-                    'status': {'type': 'string'},
-                    'displayName': {'type': ['string', 'null']},
-                    'availabilityZone': {'type': 'string'},
-                    'createdAt': {'type': 'string'},
-                    'displayDescription': {'type': ['string', 'null']},
-                    'volumeType': {'type': ['string', 'null']},
-                    'snapshotId': {'type': ['string', 'null']},
-                    'metadata': {'type': 'object'},
-                    'size': {'type': 'integer'},
-                    'attachments': {
-                        'type': 'array',
-                        'items': {
-                            'type': 'object',
-                            'properties': {
-                                'id': {'type': 'string'},
-                                'device': {'type': 'string'},
-                                'volumeId': {'type': 'string'},
-                                'serverId': {'type': 'string'}
-                            },
-                            'additionalProperties': False,
-                            # NOTE- If volume is not attached to any server
-                            # then, 'attachments' attributes comes as array
-                            # with empty objects "[{}]" due to that elements
-                            # of 'attachments' cannot defined as 'required'.
-                            # If it would come as empty array "[]" then,
-                            # those elements can be defined as 'required'.
-                        }
-                    }
-                },
-                'additionalProperties': False,
-                'required': ['id', 'status', 'displayName', 'availabilityZone',
-                             'createdAt', 'displayDescription', 'volumeType',
-                             'snapshotId', 'metadata', 'size', 'attachments']
-            }
-        },
-        'additionalProperties': False,
-        'required': ['volume']
-    }
-}
-
-list_volumes = {
-    'status_code': [200],
-    'response_body': {
-        'type': 'object',
-        'properties': {
-            'volumes': {
-                'type': 'array',
-                'items': {
-                    'type': 'object',
-                    'properties': {
-                        'id': {'type': 'string'},
-                        'status': {'type': 'string'},
-                        'displayName': {'type': ['string', 'null']},
-                        'availabilityZone': {'type': 'string'},
-                        'createdAt': {'type': 'string'},
-                        'displayDescription': {'type': ['string', 'null']},
-                        'volumeType': {'type': ['string', 'null']},
-                        'snapshotId': {'type': ['string', 'null']},
-                        'metadata': {'type': 'object'},
-                        'size': {'type': 'integer'},
-                        'attachments': {
-                            'type': 'array',
-                            'items': {
-                                'type': 'object',
-                                'properties': {
-                                    'id': {'type': 'string'},
-                                    'device': {'type': 'string'},
-                                    'volumeId': {'type': 'string'},
-                                    'serverId': {'type': 'string'}
-                                },
-                                'additionalProperties': False,
-                                # NOTE- If volume is not attached to any server
-                                # then, 'attachments' attributes comes as array
-                                # with empty object "[{}]" due to that elements
-                                # of 'attachments' cannot defined as 'required'
-                                # If it would come as empty array "[]" then,
-                                # those elements can be defined as 'required'.
-                            }
-                        }
-                    },
-                    'additionalProperties': False,
-                    'required': ['id', 'status', 'displayName',
-                                 'availabilityZone', 'createdAt',
-                                 'displayDescription', 'volumeType',
-                                 'snapshotId', 'metadata', 'size',
-                                 'attachments']
-                }
-            }
-        },
-        'additionalProperties': False,
-        'required': ['volumes']
-    }
-}
-
-delete_volume = {
-    'status_code': [202]
-}
diff --git a/tempest/clients.py b/tempest/clients.py
index 24cb721..0a3f2dd 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -39,6 +39,7 @@
     as ComputeImagesClient
 from tempest_lib.services.compute.instance_usage_audit_log_client import \
     InstanceUsagesAuditLogClient
+from tempest_lib.services.compute.interfaces_client import InterfacesClient
 from tempest_lib.services.compute.limits_client import LimitsClient
 from tempest_lib.services.compute.migrations_client import MigrationsClient
 from tempest_lib.services.compute.networks_client import NetworksClient \
@@ -58,6 +59,8 @@
 from tempest_lib.services.compute.tenant_usages_client import \
     TenantUsagesClient
 from tempest_lib.services.compute.versions_client import VersionsClient
+from tempest_lib.services.compute.volumes_client import \
+    VolumesClient as ComputeVolumesClient
 from tempest_lib.services.identity.v2.token_client import TokenClient
 from tempest_lib.services.identity.v3.token_client import V3TokenClient
 
@@ -70,16 +73,12 @@
 from tempest.services import botoclients
 from tempest.services.compute.json.floating_ips_client import \
     FloatingIPsClient as ComputeFloatingIPsClient
-from tempest.services.compute.json.interfaces_client import \
-    InterfacesClient
 from tempest.services.compute.json.keypairs_client import KeyPairsClient
 from tempest.services.compute.json.security_group_rules_client import \
     SecurityGroupRulesClient
 from tempest.services.compute.json.server_groups_client import \
     ServerGroupsClient
 from tempest.services.compute.json.servers_client import ServersClient
-from tempest.services.compute.json.volumes_client import \
-    VolumesClient as ComputeVolumesClient
 from tempest.services.data_processing.v1_1.data_processing_client import \
     DataProcessingClient
 from tempest.services.database.json.flavors_client import \
@@ -108,6 +107,8 @@
 from tempest.services.messaging.json.messaging_client import \
     MessagingClient
 from tempest.services.network.json.floating_ips_client import FloatingIPsClient
+from tempest.services.network.json.metering_label_rules_client import \
+    MeteringLabelRulesClient
 from tempest.services.network.json.metering_labels_client import \
     MeteringLabelsClient
 from tempest.services.network.json.network_client import NetworkClient
@@ -123,38 +124,41 @@
 from tempest.services.telemetry.json.telemetry_client import \
     TelemetryClient
 from tempest.services.volume.v1.json.admin.hosts_client import \
-    VolumeHostsClient
+    HostsClient as VolumeHostsClient
 from tempest.services.volume.v1.json.admin.quotas_client import \
-    VolumeQuotasClient
+    QuotasClient as VolumeQuotasClient
 from tempest.services.volume.v1.json.admin.services_client import \
-    VolumesServicesClient
+    ServicesClient as VolumeServicesClient
 from tempest.services.volume.v1.json.admin.types_client import \
-    VolumeTypesClient
+    TypesClient as VolumeTypesClient
 from tempest.services.volume.v1.json.availability_zone_client import \
-    VolumeAvailabilityZoneClient
+    AvailabilityZoneClient as VolumeAvailabilityZoneClient
 from tempest.services.volume.v1.json.backups_client import BackupsClient
 from tempest.services.volume.v1.json.extensions_client import \
-    ExtensionsClient as VolumeExtensionClient
+    ExtensionsClient as VolumeExtensionsClient
 from tempest.services.volume.v1.json.qos_client import QosSpecsClient
 from tempest.services.volume.v1.json.snapshots_client import SnapshotsClient
 from tempest.services.volume.v1.json.volumes_client import VolumesClient
 from tempest.services.volume.v2.json.admin.hosts_client import \
-    VolumeHostsV2Client
+    HostsClient as VolumeHostsV2Client
 from tempest.services.volume.v2.json.admin.quotas_client import \
-    VolumeQuotasV2Client
+    QuotasClient as VolumeQuotasV2Client
 from tempest.services.volume.v2.json.admin.services_client import \
-    VolumesServicesV2Client
+    ServicesClient as VolumeServicesV2Client
 from tempest.services.volume.v2.json.admin.types_client import \
-    VolumeTypesV2Client
+    TypesClient as VolumeTypesV2Client
 from tempest.services.volume.v2.json.availability_zone_client import \
-    VolumeV2AvailabilityZoneClient
-from tempest.services.volume.v2.json.backups_client import BackupsClientV2
+    AvailabilityZoneClient as VolumeAvailabilityZoneV2Client
+from tempest.services.volume.v2.json.backups_client import \
+    BackupsClient as BackupsV2Client
 from tempest.services.volume.v2.json.extensions_client import \
-    ExtensionsV2Client as VolumeV2ExtensionClient
-from tempest.services.volume.v2.json.qos_client import QosSpecsV2Client
+    ExtensionsClient as VolumeExtensionsV2Client
+from tempest.services.volume.v2.json.qos_client import \
+    QosSpecsClient as QosSpecsV2Client
 from tempest.services.volume.v2.json.snapshots_client import \
-    SnapshotsV2Client
-from tempest.services.volume.v2.json.volumes_client import VolumesV2Client
+    SnapshotsClient as SnapshotsV2Client
+from tempest.services.volume.v2.json.volumes_client import \
+    VolumesClient as VolumesV2Client
 
 CONF = config.CONF
 LOG = logging.getLogger(__name__)
@@ -241,6 +245,14 @@
             build_interval=CONF.network.build_interval,
             build_timeout=CONF.network.build_timeout,
             **self.default_params)
+        self.metering_label_rules_client = MeteringLabelRulesClient(
+            self.auth_provider,
+            CONF.network.catalog_type,
+            CONF.network.region or CONF.identity.region,
+            endpoint_type=CONF.network.endpoint_type,
+            build_interval=CONF.network.build_interval,
+            build_timeout=CONF.network.build_timeout,
+            **self.default_params)
         self.messaging_client = MessagingClient(
             self.auth_provider,
             CONF.messaging.catalog_type,
@@ -462,10 +474,12 @@
                                                 **params)
         self.volume_qos_v2_client = QosSpecsV2Client(
             self.auth_provider, **params)
-        self.volume_services_v2_client = VolumesServicesV2Client(
+        self.volume_services_client = VolumeServicesClient(
+            self.auth_provider, **params)
+        self.volume_services_v2_client = VolumeServicesV2Client(
             self.auth_provider, **params)
         self.backups_client = BackupsClient(self.auth_provider, **params)
-        self.backups_v2_client = BackupsClientV2(self.auth_provider,
+        self.backups_v2_client = BackupsV2Client(self.auth_provider,
                                                  **params)
         self.snapshots_client = SnapshotsClient(self.auth_provider,
                                                 **params)
@@ -479,7 +493,7 @@
             **params)
         self.volume_types_client = VolumeTypesClient(self.auth_provider,
                                                      **params)
-        self.volume_services_client = VolumesServicesClient(
+        self.volume_types_v2_client = VolumeTypesV2Client(
             self.auth_provider, **params)
         self.volume_hosts_client = VolumeHostsClient(self.auth_provider,
                                                      **params)
@@ -489,16 +503,14 @@
                                                        **params)
         self.volume_quotas_v2_client = VolumeQuotasV2Client(self.auth_provider,
                                                             **params)
-        self.volumes_extension_client = VolumeExtensionClient(
+        self.volumes_extension_client = VolumeExtensionsClient(
             self.auth_provider, **params)
-        self.volumes_v2_extension_client = VolumeV2ExtensionClient(
+        self.volumes_v2_extension_client = VolumeExtensionsV2Client(
             self.auth_provider, **params)
         self.volume_availability_zone_client = \
             VolumeAvailabilityZoneClient(self.auth_provider, **params)
         self.volume_v2_availability_zone_client = \
-            VolumeV2AvailabilityZoneClient(self.auth_provider, **params)
-        self.volume_types_v2_client = VolumeTypesV2Client(
-            self.auth_provider, **params)
+            VolumeAvailabilityZoneV2Client(self.auth_provider, **params)
 
     def _set_object_storage_clients(self):
         params = {
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index f2dd7af..98af9c1 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -388,6 +388,7 @@
         self.ports_client = manager.ports_client
         self.floating_ips_client = manager.floating_ips_client
         self.metering_labels_client = manager.metering_labels_client
+        self.metering_label_rules_client = manager.metering_label_rules_client
 
     def _filter_by_conf_networks(self, item_list):
         if not item_list or not all(('network_id' in i for i in item_list)):
@@ -577,7 +578,7 @@
 class NetworkMeteringLabelRuleService(NetworkService):
 
     def list(self):
-        client = self.client
+        client = self.metering_label_rules_client
         rules = client.list_metering_label_rules()
         rules = rules['metering_label_rules']
         rules = self._filter_by_tenant_id(rules)
@@ -585,7 +586,7 @@
         return rules
 
     def delete(self):
-        client = self.client
+        client = self.metering_label_rules_client
         rules = self.list()
         for rule in rules:
             try:
diff --git a/tempest/common/api_version_request.py b/tempest/common/api_version_request.py
index 72a11ea..d8a5b56 100644
--- a/tempest/common/api_version_request.py
+++ b/tempest/common/api_version_request.py
@@ -54,6 +54,8 @@
             None value should be used to create Null APIVersionRequest,
             which is equal to 0.0
         """
+        # NOTE(gmann): 'version_string' as String "None" will be considered as
+        # invalid version string.
         self.ver_major = 0
         self.ver_minor = 0
 
diff --git a/tempest/config.py b/tempest/config.py
index 26dda2d..a6212fb 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -347,16 +347,18 @@
                     "The format is 'X.Y', where 'X' and 'Y' are int values. "
                     "Tempest selects tests based on the range between "
                     "min_microversion and max_microversion. "
-                    "If both values are None, Tempest avoids tests which "
-                    "require a microversion."),
+                    "If both values are not specified, Tempest avoids tests "
+                    "which require a microversion. Valid values are string "
+                    "with format 'X.Y' or string 'latest'"),
     cfg.StrOpt('max_microversion',
                default=None,
                help="Upper version of the test target microversion range. "
                     "The format is 'X.Y', where 'X' and 'Y' are int values. "
                     "Tempest selects tests based on the range between "
                     "min_microversion and max_microversion. "
-                    "If both values are None, Tempest avoids tests which "
-                    "require a microversion."),
+                    "If both values are not specified, Tempest avoids tests "
+                    "which require a microversion. Valid values are string "
+                    "with format 'X.Y' or string 'latest'"),
     cfg.BoolOpt('disk_config',
                 default=True,
                 help="If false, skip disk config tests"),
diff --git a/tempest/exceptions.py b/tempest/exceptions.py
index 8537898..1d725af 100644
--- a/tempest/exceptions.py
+++ b/tempest/exceptions.py
@@ -177,8 +177,8 @@
 
 
 class InvalidAPIVersionString(TempestException):
-    msg_fmt = ("API Version String %(version)s is of invalid format. Must "
-               "be of format MajorNum.MinorNum.")
+    message = ("API Version String %(version)s is of invalid format. Must "
+               "be of format MajorNum.MinorNum or string 'latest'.")
 
 
 class CommandFailed(Exception):
diff --git a/tempest/hacking/ignored_list_T110.txt b/tempest/hacking/ignored_list_T110.txt
index 211a7d6..8de3151 100644
--- a/tempest/hacking/ignored_list_T110.txt
+++ b/tempest/hacking/ignored_list_T110.txt
@@ -1,8 +1,4 @@
-./tempest/services/database/json/flavors_client.py
-./tempest/services/identity/v3/json/credentials_client.py
 ./tempest/services/identity/v3/json/identity_client.py
-./tempest/services/identity/v3/json/policy_client.py
-./tempest/services/identity/v3/json/region_client.py
 ./tempest/services/messaging/json/messaging_client.py
 ./tempest/services/object_storage/object_client.py
 ./tempest/services/telemetry/json/alarming_client.py
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index 41d13fe..20ccc59 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -726,7 +726,7 @@
         target_agent = list(hosting_agents if no_migration else
                             agent_list - hosting_agents)[0]
         schedule_router(target_agent,
-                        self.router['id'])
+                        router_id=self.router['id'])
         self.assertEqual(
             target_agent,
             list_hosts(self.router.id)['agents'][0]['id'],
diff --git a/tempest/services/baremetal/base.py b/tempest/services/baremetal/base.py
index 004c0de..d8cb99d 100644
--- a/tempest/services/baremetal/base.py
+++ b/tempest/services/baremetal/base.py
@@ -59,7 +59,7 @@
 
         :param resource_name: The name of the REST resource, e.g., 'nodes'.
         :param uuid: The unique identifier of an object in UUID format.
-        :return: Relative URI for the resource or object.
+        :returns: Relative URI for the resource or object.
 
         """
         prefix = self.uri_prefix if not permanent else ''
@@ -68,18 +68,18 @@
                                            res=resource_name,
                                            uuid='/%s' % uuid if uuid else '')
 
-    def _make_patch(self, allowed_attributes, **kw):
+    def _make_patch(self, allowed_attributes, **kwargs):
         """Create a JSON patch according to RFC 6902.
 
         :param allowed_attributes: An iterable object that contains a set of
             allowed attributes for an object.
-        :param **kw: Attributes and new values for them.
-        :return: A JSON path that sets values of the specified attributes to
+        :param **kwargs: Attributes and new values for them.
+        :returns: A JSON path that sets values of the specified attributes to
             the new ones.
 
         """
-        def get_change(kw, path='/'):
-            for name, value in six.iteritems(kw):
+        def get_change(kwargs, path='/'):
+            for name, value in six.iteritems(kwargs):
                 if isinstance(value, dict):
                     for ch in get_change(value, path + '%s/' % name):
                         yield ch
@@ -92,7 +92,7 @@
                                'value': value,
                                'op': 'replace'}
 
-        patch = [ch for ch in get_change(kw)
+        patch = [ch for ch in get_change(kwargs)
                  if ch['path'].lstrip('/') in allowed_attributes]
 
         return patch
@@ -101,8 +101,8 @@
         """Get the list of objects of the specified type.
 
         :param resource: The name of the REST resource, e.g., 'nodes'.
-        "param **kw: Parameters for the request.
-        :return: A tuple with the server response and deserialized JSON list
+        :param **kwargs: Parameters for the request.
+        :returns: A tuple with the server response and deserialized JSON list
                  of objects
 
         """
@@ -119,7 +119,7 @@
         """Gets a specific object of the specified type.
 
         :param uuid: Unique identifier of the object in UUID format.
-        :return: Serialized object as a dictionary.
+        :returns: Serialized object as a dictionary.
 
         """
         if 'uri' in kwargs:
@@ -137,7 +137,7 @@
         :param resource: The name of the REST resource, e.g., 'nodes'.
         :param object_dict: A Python dict that represents an object of the
                             specified type.
-        :return: A tuple with the server response and the deserialized created
+        :returns: A tuple with the server response and the deserialized created
                  object.
 
         """
@@ -154,7 +154,7 @@
 
         :param resource: The name of the REST resource, e.g., 'nodes'.
         :param uuid: The unique identifier of an object in UUID format.
-        :return: A tuple with the server response and the response body.
+        :returns: A tuple with the server response and the response body.
 
         """
         uri = self._get_uri(resource, uuid)
@@ -168,7 +168,7 @@
 
         :param resource: The name of the REST resource, e.g., 'nodes'.
         :param uuid: The unique identifier of an object in UUID format.
-        :return: A tuple with the server response and the serialized patched
+        :returns: A tuple with the server response and the serialized patched
                  object.
 
         """
@@ -190,7 +190,7 @@
         """Retrieves the desctription of the API.
 
         :param version: The version of the API. Default: 'v1'.
-        :return: Serialized description of API resources.
+        :returns: Serialized description of API resources.
 
         """
         return self._list_request(version, permanent=True)
diff --git a/tempest/services/botoclients.py b/tempest/services/botoclients.py
index e117719..9d452ff 100644
--- a/tempest/services/botoclients.py
+++ b/tempest/services/botoclients.py
@@ -101,8 +101,8 @@
                 break
         else:
             ec2_cred = (identity_client.create_user_ec2_credentials(
-                identity_client.user_id, identity_client.tenant_id)
-                ['credential'])
+                identity_client.user_id,
+                tenant_id=identity_client.tenant_id)['credential'])
         if not all((ec2_cred, ec2_cred['access'], ec2_cred['secret'])):
             raise lib_exc.NotFound("Unable to get access and secret keys")
         else:
diff --git a/tempest/services/compute/json/interfaces_client.py b/tempest/services/compute/json/interfaces_client.py
deleted file mode 100644
index fe076d8..0000000
--- a/tempest/services/compute/json/interfaces_client.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# Copyright 2013 IBM Corp.
-# 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 oslo_serialization import jsonutils as json
-
-from tempest.api_schema.response.compute.v2_1 import interfaces as schema
-from tempest.common import service_client
-
-
-class InterfacesClient(service_client.ServiceClient):
-
-    def list_interfaces(self, server_id):
-        resp, body = self.get('servers/%s/os-interface' % server_id)
-        body = json.loads(body)
-        self.validate_response(schema.list_interfaces, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def create_interface(self, server_id, **kwargs):
-        post_body = {'interfaceAttachment': kwargs}
-        post_body = json.dumps(post_body)
-        resp, body = self.post('servers/%s/os-interface' % server_id,
-                               body=post_body)
-        body = json.loads(body)
-        self.validate_response(schema.get_create_interfaces, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def show_interface(self, server_id, port_id):
-        resp, body = self.get('servers/%s/os-interface/%s' % (server_id,
-                                                              port_id))
-        body = json.loads(body)
-        self.validate_response(schema.get_create_interfaces, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def delete_interface(self, server_id, port_id):
-        resp, body = self.delete('servers/%s/os-interface/%s' % (server_id,
-                                                                 port_id))
-        self.validate_response(schema.delete_interface, resp, body)
-        return service_client.ResponseBody(resp, body)
diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index a0251f1..c71a193 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -311,13 +311,7 @@
 
     def live_migrate_server(self, server_id, **kwargs):
         """This should be called with administrator privileges ."""
-
-        req_body = json.dumps({'os-migrateLive': kwargs})
-
-        resp, body = self.post("servers/%s/action" % server_id, req_body)
-        self.validate_response(schema.server_actions_common_schema,
-                               resp, body)
-        return service_client.ResponseBody(resp, body)
+        return self.action(server_id, 'os-migrateLive', **kwargs)
 
     def migrate_server(self, server_id, **kwargs):
         """Migrates a server to a new host."""
diff --git a/tempest/services/compute/json/volumes_client.py b/tempest/services/compute/json/volumes_client.py
deleted file mode 100644
index 69d982e..0000000
--- a/tempest/services/compute/json/volumes_client.py
+++ /dev/null
@@ -1,78 +0,0 @@
-# Copyright 2012 OpenStack Foundation
-# 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 oslo_serialization import jsonutils as json
-from six.moves.urllib import parse as urllib
-from tempest_lib import exceptions as lib_exc
-
-from tempest.api_schema.response.compute.v2_1 import volumes as schema
-from tempest.common import service_client
-
-
-class VolumesClient(service_client.ServiceClient):
-
-    def list_volumes(self, detail=False, **params):
-        """List all the volumes created."""
-        url = 'os-volumes'
-
-        if detail:
-            url += '/detail'
-        if params:
-            url += '?%s' % urllib.urlencode(params)
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.validate_response(schema.list_volumes, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def show_volume(self, volume_id):
-        """Returns the details of a single volume."""
-        url = "os-volumes/%s" % volume_id
-        resp, body = self.get(url)
-        body = json.loads(body)
-        self.validate_response(schema.create_get_volume, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def create_volume(self, **kwargs):
-        """Creates a new Volume.
-
-        size(Required): Size of volume in GB.
-        Following optional keyword arguments are accepted:
-        display_name: Optional Volume Name.
-        metadata: A dictionary of values to be used as metadata.
-        """
-        post_body = json.dumps({'volume': kwargs})
-        resp, body = self.post('os-volumes', post_body)
-        body = json.loads(body)
-        self.validate_response(schema.create_get_volume, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def delete_volume(self, volume_id):
-        """Deletes the Specified Volume."""
-        resp, body = self.delete("os-volumes/%s" % volume_id)
-        self.validate_response(schema.delete_volume, resp, body)
-        return service_client.ResponseBody(resp, body)
-
-    def is_resource_deleted(self, id):
-        try:
-            self.show_volume(id)
-        except lib_exc.NotFound:
-            return True
-        return False
-
-    @property
-    def resource_type(self):
-        """Returns the primary type of resource this client works with."""
-        return 'volume'
diff --git a/tempest/services/database/json/flavors_client.py b/tempest/services/database/json/flavors_client.py
index 88feb17..34a91ba 100644
--- a/tempest/services/database/json/flavors_client.py
+++ b/tempest/services/database/json/flavors_client.py
@@ -31,8 +31,8 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def get_db_flavor_details(self, db_flavor_id):
-        resp, body = self.get("flavors/%s" % str(db_flavor_id))
+    def show_db_flavor(self, db_flavor_id):
+        resp, body = self.get("flavors/%s" % db_flavor_id)
         self.expected_success(200, resp.status)
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
diff --git a/tempest/services/identity/v2/json/identity_client.py b/tempest/services/identity/v2/json/identity_client.py
index 3f6727d..3e7a598 100644
--- a/tempest/services/identity/v2/json/identity_client.py
+++ b/tempest/services/identity/v2/json/identity_client.py
@@ -307,8 +307,11 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def create_user_ec2_credentials(self, user_id, tenant_id):
-        post_body = json.dumps({'tenant_id': tenant_id})
+    def create_user_ec2_credentials(self, user_id, **kwargs):
+        # TODO(piyush): Current api-site doesn't contain this API description.
+        # After fixing the api-site, we need to fix here also for putting the
+        # link to api-site.
+        post_body = json.dumps(kwargs)
         resp, body = self.post('/users/%s/credentials/OS-EC2' % user_id,
                                post_body)
         self.expected_success(200, resp.status)
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index 7d4cf9a..753e960 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -51,7 +51,7 @@
         body['credential']['blob'] = json.loads(body['credential']['blob'])
         return service_client.ResponseBody(resp, body)
 
-    def get_credential(self, credential_id):
+    def show_credential(self, credential_id):
         """To GET Details of a credential."""
         resp, body = self.get('credentials/%s' % credential_id)
         self.expected_success(200, resp.status)
diff --git a/tempest/services/identity/v3/json/policy_client.py b/tempest/services/identity/v3/json/policy_client.py
index ecc9df7..7927ed5 100644
--- a/tempest/services/identity/v3/json/policy_client.py
+++ b/tempest/services/identity/v3/json/policy_client.py
@@ -44,7 +44,7 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def get_policy(self, policy_id):
+    def show_policy(self, policy_id):
         """Lists out the given policy."""
         url = 'policies/%s' % policy_id
         resp, body = self.get(url)
diff --git a/tempest/services/identity/v3/json/region_client.py b/tempest/services/identity/v3/json/region_client.py
index 6ccdc31..3595391 100644
--- a/tempest/services/identity/v3/json/region_client.py
+++ b/tempest/services/identity/v3/json/region_client.py
@@ -59,7 +59,7 @@
         body = json.loads(body)
         return service_client.ResponseBody(resp, body)
 
-    def get_region(self, region_id):
+    def show_region(self, region_id):
         """Get region."""
         url = 'regions/%s' % region_id
         resp, body = self.get(url)
diff --git a/tempest/services/network/json/metering_label_rules_client.py b/tempest/services/network/json/metering_label_rules_client.py
new file mode 100644
index 0000000..374a89c
--- /dev/null
+++ b/tempest/services/network/json/metering_label_rules_client.py
@@ -0,0 +1,33 @@
+#    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.services.network.json import base
+
+
+class MeteringLabelRulesClient(base.BaseNetworkClient):
+
+    def create_metering_label_rule(self, **kwargs):
+        uri = '/metering/metering-label-rules'
+        post_data = {'metering_label_rule': kwargs}
+        return self.create_resource(uri, post_data)
+
+    def show_metering_label_rule(self, metering_label_rule_id, **fields):
+        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
+        return self.show_resource(uri, **fields)
+
+    def delete_metering_label_rule(self, metering_label_rule_id):
+        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
+        return self.delete_resource(uri)
+
+    def list_metering_label_rules(self, **filters):
+        uri = '/metering/metering-label-rules'
+        return self.list_resources(uri, **filters)
diff --git a/tempest/services/network/json/network_client.py b/tempest/services/network/json/network_client.py
index b525143..08316be 100644
--- a/tempest/services/network/json/network_client.py
+++ b/tempest/services/network/json/network_client.py
@@ -35,23 +35,6 @@
     quotas
     """
 
-    def create_metering_label_rule(self, **kwargs):
-        uri = '/metering/metering-label-rules'
-        post_data = {'metering_label_rule': kwargs}
-        return self.create_resource(uri, post_data)
-
-    def show_metering_label_rule(self, metering_label_rule_id, **fields):
-        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
-        return self.show_resource(uri, **fields)
-
-    def delete_metering_label_rule(self, metering_label_rule_id):
-        uri = '/metering/metering-label-rules/%s' % metering_label_rule_id
-        return self.delete_resource(uri)
-
-    def list_metering_label_rules(self, **filters):
-        uri = '/metering/metering-label-rules'
-        return self.list_resources(uri, **filters)
-
     def create_security_group(self, **kwargs):
         uri = '/security-groups'
         post_data = {'security_group': kwargs}
@@ -300,10 +283,12 @@
         uri = '/routers/%s/l3-agents' % router_id
         return self.list_resources(uri)
 
-    def add_router_to_l3_agent(self, agent_id, router_id):
+    def add_router_to_l3_agent(self, agent_id, **kwargs):
+        # TODO(piyush): Current api-site doesn't contain this API description.
+        # After fixing the api-site, we need to fix here also for putting the
+        # link to api-site.
         uri = '/agents/%s/l3-routers' % agent_id
-        post_body = {"router_id": router_id}
-        return self.create_resource(uri, post_body)
+        return self.create_resource(uri, kwargs)
 
     def remove_router_from_l3_agent(self, agent_id, router_id):
         uri = '/agents/%s/l3-routers/%s' % (agent_id, router_id)
diff --git a/tempest/services/volume/base/admin/base_hosts_client.py b/tempest/services/volume/base/admin/base_hosts_client.py
index 97bb007..074f87f 100644
--- a/tempest/services/volume/base/admin/base_hosts_client.py
+++ b/tempest/services/volume/base/admin/base_hosts_client.py
@@ -19,7 +19,7 @@
 from tempest.common import service_client
 
 
-class BaseVolumeHostsClient(service_client.ServiceClient):
+class BaseHostsClient(service_client.ServiceClient):
     """Client class to send CRUD Volume Hosts API requests"""
 
     def list_hosts(self, **params):
diff --git a/tempest/services/volume/base/admin/base_quotas_client.py b/tempest/services/volume/base/admin/base_quotas_client.py
index ad8ba03..e063a31 100644
--- a/tempest/services/volume/base/admin/base_quotas_client.py
+++ b/tempest/services/volume/base/admin/base_quotas_client.py
@@ -18,7 +18,7 @@
 from tempest.common import service_client
 
 
-class BaseVolumeQuotasClient(service_client.ServiceClient):
+class BaseQuotasClient(service_client.ServiceClient):
     """Client class to send CRUD Volume Quotas API requests"""
 
     TYPE = "json"
diff --git a/tempest/services/volume/base/admin/base_services_client.py b/tempest/services/volume/base/admin/base_services_client.py
index 1790421..3626469 100644
--- a/tempest/services/volume/base/admin/base_services_client.py
+++ b/tempest/services/volume/base/admin/base_services_client.py
@@ -19,9 +19,9 @@
 from tempest.common import service_client
 
 
-class BaseVolumesServicesClient(service_client.ServiceClient):
+class BaseServicesClient(service_client.ServiceClient):
 
-    def list_services(self, params=None):
+    def list_services(self, **params):
         url = 'os-services'
         if params:
             url += '?%s' % urllib.urlencode(params)
diff --git a/tempest/services/volume/base/admin/base_types_client.py b/tempest/services/volume/base/admin/base_types_client.py
index 8fcf57c..de6ea8a 100644
--- a/tempest/services/volume/base/admin/base_types_client.py
+++ b/tempest/services/volume/base/admin/base_types_client.py
@@ -20,7 +20,7 @@
 from tempest.common import service_client
 
 
-class BaseVolumeTypesClient(service_client.ServiceClient):
+class BaseTypesClient(service_client.ServiceClient):
     """Client class to send CRUD Volume Types API requests"""
 
     def is_resource_deleted(self, resource):
diff --git a/tempest/services/volume/base/base_availability_zone_client.py b/tempest/services/volume/base/base_availability_zone_client.py
index d5a2fda..b63fdc2 100644
--- a/tempest/services/volume/base/base_availability_zone_client.py
+++ b/tempest/services/volume/base/base_availability_zone_client.py
@@ -18,7 +18,7 @@
 from tempest.common import service_client
 
 
-class BaseVolumeAvailabilityZoneClient(service_client.ServiceClient):
+class BaseAvailabilityZoneClient(service_client.ServiceClient):
 
     def list_availability_zones(self):
         resp, body = self.get('os-availability-zone')
diff --git a/tempest/services/volume/v1/json/admin/hosts_client.py b/tempest/services/volume/v1/json/admin/hosts_client.py
index 1b685bd..3b52968 100644
--- a/tempest/services/volume/v1/json/admin/hosts_client.py
+++ b/tempest/services/volume/v1/json/admin/hosts_client.py
@@ -16,5 +16,5 @@
 from tempest.services.volume.base.admin import base_hosts_client
 
 
-class VolumeHostsClient(base_hosts_client.BaseVolumeHostsClient):
+class HostsClient(base_hosts_client.BaseHostsClient):
     """Client class to send CRUD Volume Host API V1 requests"""
diff --git a/tempest/services/volume/v1/json/admin/quotas_client.py b/tempest/services/volume/v1/json/admin/quotas_client.py
index 5ca074e..27fc301 100644
--- a/tempest/services/volume/v1/json/admin/quotas_client.py
+++ b/tempest/services/volume/v1/json/admin/quotas_client.py
@@ -15,5 +15,5 @@
 from tempest.services.volume.base.admin import base_quotas_client
 
 
-class VolumeQuotasClient(base_quotas_client.BaseVolumeQuotasClient):
+class QuotasClient(base_quotas_client.BaseQuotasClient):
     """Client class to send CRUD Volume Type API V1 requests"""
diff --git a/tempest/services/volume/v1/json/admin/services_client.py b/tempest/services/volume/v1/json/admin/services_client.py
index efe02d8..2bffd55 100644
--- a/tempest/services/volume/v1/json/admin/services_client.py
+++ b/tempest/services/volume/v1/json/admin/services_client.py
@@ -16,5 +16,5 @@
 from tempest.services.volume.base.admin import base_services_client
 
 
-class VolumesServicesClient(base_services_client.BaseVolumesServicesClient):
+class ServicesClient(base_services_client.BaseServicesClient):
     """Volume V1 volume services client"""
diff --git a/tempest/services/volume/v1/json/admin/types_client.py b/tempest/services/volume/v1/json/admin/types_client.py
index 4bd1579..0e84296 100644
--- a/tempest/services/volume/v1/json/admin/types_client.py
+++ b/tempest/services/volume/v1/json/admin/types_client.py
@@ -16,5 +16,5 @@
 from tempest.services.volume.base.admin import base_types_client
 
 
-class VolumeTypesClient(base_types_client.BaseVolumeTypesClient):
+class TypesClient(base_types_client.BaseTypesClient):
     """Volume V1 Volume Types client"""
diff --git a/tempest/services/volume/v1/json/availability_zone_client.py b/tempest/services/volume/v1/json/availability_zone_client.py
index d8180fa..3a27027 100644
--- a/tempest/services/volume/v1/json/availability_zone_client.py
+++ b/tempest/services/volume/v1/json/availability_zone_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base import base_availability_zone_client
 
 
-class VolumeAvailabilityZoneClient(
-        base_availability_zone_client.BaseVolumeAvailabilityZoneClient):
+class AvailabilityZoneClient(
+        base_availability_zone_client.BaseAvailabilityZoneClient):
     """Volume V1 availability zone client."""
diff --git a/tempest/services/volume/v2/json/admin/hosts_client.py b/tempest/services/volume/v2/json/admin/hosts_client.py
index 7bdc6f7..e092c6a 100644
--- a/tempest/services/volume/v2/json/admin/hosts_client.py
+++ b/tempest/services/volume/v2/json/admin/hosts_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base.admin import base_hosts_client
 
 
-class VolumeHostsV2Client(base_hosts_client.BaseVolumeHostsClient):
+class HostsClient(base_hosts_client.BaseHostsClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/admin/quotas_client.py b/tempest/services/volume/v2/json/admin/quotas_client.py
index b2d3604..11e0e22 100644
--- a/tempest/services/volume/v2/json/admin/quotas_client.py
+++ b/tempest/services/volume/v2/json/admin/quotas_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base.admin import base_quotas_client
 
 
-class VolumeQuotasV2Client(base_quotas_client.BaseVolumeQuotasClient):
+class QuotasClient(base_quotas_client.BaseQuotasClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/admin/services_client.py b/tempest/services/volume/v2/json/admin/services_client.py
index 3912c9d..db19ba9 100644
--- a/tempest/services/volume/v2/json/admin/services_client.py
+++ b/tempest/services/volume/v2/json/admin/services_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base.admin import base_services_client
 
 
-class VolumesServicesV2Client(base_services_client.BaseVolumesServicesClient):
+class ServicesClient(base_services_client.BaseServicesClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/admin/types_client.py b/tempest/services/volume/v2/json/admin/types_client.py
index d9eba7e..ecf5131 100644
--- a/tempest/services/volume/v2/json/admin/types_client.py
+++ b/tempest/services/volume/v2/json/admin/types_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base.admin import base_types_client
 
 
-class VolumeTypesV2Client(base_types_client.BaseVolumeTypesClient):
+class TypesClient(base_types_client.BaseTypesClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/availability_zone_client.py b/tempest/services/volume/v2/json/availability_zone_client.py
index a4fc9fe..905ebdc 100644
--- a/tempest/services/volume/v2/json/availability_zone_client.py
+++ b/tempest/services/volume/v2/json/availability_zone_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base import base_availability_zone_client
 
 
-class VolumeV2AvailabilityZoneClient(
-        base_availability_zone_client.BaseVolumeAvailabilityZoneClient):
+class AvailabilityZoneClient(
+        base_availability_zone_client.BaseAvailabilityZoneClient):
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/backups_client.py b/tempest/services/volume/v2/json/backups_client.py
index 15d363b..78bab82 100644
--- a/tempest/services/volume/v2/json/backups_client.py
+++ b/tempest/services/volume/v2/json/backups_client.py
@@ -16,6 +16,6 @@
 from tempest.services.volume.base import base_backups_client
 
 
-class BackupsClientV2(base_backups_client.BaseBackupsClient):
+class BackupsClient(base_backups_client.BaseBackupsClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/extensions_client.py b/tempest/services/volume/v2/json/extensions_client.py
index 004b232..245906f 100644
--- a/tempest/services/volume/v2/json/extensions_client.py
+++ b/tempest/services/volume/v2/json/extensions_client.py
@@ -16,5 +16,5 @@
 from tempest.services.volume.base import base_extensions_client
 
 
-class ExtensionsV2Client(base_extensions_client.BaseExtensionsClient):
+class ExtensionsClient(base_extensions_client.BaseExtensionsClient):
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/qos_client.py b/tempest/services/volume/v2/json/qos_client.py
index e8b680a..3c0f74f 100644
--- a/tempest/services/volume/v2/json/qos_client.py
+++ b/tempest/services/volume/v2/json/qos_client.py
@@ -15,5 +15,5 @@
 from tempest.services.volume.base import base_qos_client
 
 
-class QosSpecsV2Client(base_qos_client.BaseQosSpecsClient):
+class QosSpecsClient(base_qos_client.BaseQosSpecsClient):
     api_version = "v2"
diff --git a/tempest/services/volume/v2/json/snapshots_client.py b/tempest/services/volume/v2/json/snapshots_client.py
index 28a9e98..a2d415f 100644
--- a/tempest/services/volume/v2/json/snapshots_client.py
+++ b/tempest/services/volume/v2/json/snapshots_client.py
@@ -13,7 +13,7 @@
 from tempest.services.volume.base import base_snapshots_client
 
 
-class SnapshotsV2Client(base_snapshots_client.BaseSnapshotsClient):
+class SnapshotsClient(base_snapshots_client.BaseSnapshotsClient):
     """Client class to send CRUD Volume V2 API requests."""
     api_version = "v2"
     create_resp = 202
diff --git a/tempest/services/volume/v2/json/volumes_client.py b/tempest/services/volume/v2/json/volumes_client.py
index 51daa94..b7d9dfb 100644
--- a/tempest/services/volume/v2/json/volumes_client.py
+++ b/tempest/services/volume/v2/json/volumes_client.py
@@ -16,7 +16,7 @@
 from tempest.services.volume.base import base_volumes_client
 
 
-class VolumesV2Client(base_volumes_client.BaseVolumesClient):
+class VolumesClient(base_volumes_client.BaseVolumesClient):
     """Client class to send CRUD Volume V2 API requests"""
     api_version = "v2"
     create_resp = 202
diff --git a/tempest/tests/common/test_service_clients.py b/tempest/tests/common/test_service_clients.py
index f82e09c..c313071 100644
--- a/tempest/tests/common/test_service_clients.py
+++ b/tempest/tests/common/test_service_clients.py
@@ -18,12 +18,9 @@
 
 from tempest.services.baremetal.v1.json import baremetal_client
 from tempest.services.compute.json import floating_ips_client
-from tempest.services.compute.json import interfaces_client
 from tempest.services.compute.json import security_group_rules_client
 from tempest.services.compute.json import server_groups_client
 from tempest.services.compute.json import servers_client
-from tempest.services.compute.json import volumes_client \
-    as compute_volumes_client
 from tempest.services.data_processing.v1_1 import data_processing_client
 from tempest.services.database.json import flavors_client as db_flavor_client
 from tempest.services.database.json import versions_client as db_version_client
@@ -91,11 +88,9 @@
         test_clients = [
             baremetal_client.BaremetalClient,
             floating_ips_client.FloatingIPsClient,
-            interfaces_client.InterfacesClient,
             security_group_rules_client.SecurityGroupRulesClient,
             server_groups_client.ServerGroupsClient,
             servers_client.ServersClient,
-            compute_volumes_client.VolumesClient,
             data_processing_client.DataProcessingClient,
             db_flavor_client.DatabaseFlavorsClient,
             db_version_client.DatabaseVersionsClient,
@@ -108,25 +103,25 @@
             telemetry_client.TelemetryClient,
             alarming_client.AlarmingClient,
             qos_client.QosSpecsClient,
-            volume_hosts_client.VolumeHostsClient,
-            volume_quotas_client.VolumeQuotasClient,
-            volume_services_client.VolumesServicesClient,
-            volume_types_client.VolumeTypesClient,
-            volume_az_client.VolumeAvailabilityZoneClient,
+            volume_hosts_client.HostsClient,
+            volume_quotas_client.QuotasClient,
+            volume_services_client.ServicesClient,
+            volume_types_client.TypesClient,
+            volume_az_client.AvailabilityZoneClient,
             backups_client.BackupsClient,
             volume_extensions_client.ExtensionsClient,
             snapshots_client.SnapshotsClient,
             volumes_client.VolumesClient,
-            volume_v2_hosts_client.VolumeHostsV2Client,
-            volume_v2_quotas_client.VolumeQuotasV2Client,
-            volume_v2_services_client.VolumesServicesV2Client,
-            volume_v2_types_client.VolumeTypesV2Client,
-            volume_v2_az_client.VolumeV2AvailabilityZoneClient,
-            volume_v2_backups_client.BackupsClientV2,
-            volume_v2_extensions_client.ExtensionsV2Client,
-            volume_v2_qos_client.QosSpecsV2Client,
-            volume_v2_snapshots_client.SnapshotsV2Client,
-            volume_v2_volumes_client.VolumesV2Client,
+            volume_v2_hosts_client.HostsClient,
+            volume_v2_quotas_client.QuotasClient,
+            volume_v2_services_client.ServicesClient,
+            volume_v2_types_client.TypesClient,
+            volume_v2_az_client.AvailabilityZoneClient,
+            volume_v2_backups_client.BackupsClient,
+            volume_v2_extensions_client.ExtensionsClient,
+            volume_v2_qos_client.QosSpecsClient,
+            volume_v2_snapshots_client.SnapshotsClient,
+            volume_v2_volumes_client.VolumesClient,
             identity_v2_identity_client.IdentityClient,
             credentials_client.CredentialsClient,
             endpoints_client.EndPointClient,
diff --git a/tempest/tests/services/compute/test_interfaces_client.py b/tempest/tests/services/compute/test_interfaces_client.py
deleted file mode 100644
index 235585a..0000000
--- a/tempest/tests/services/compute/test_interfaces_client.py
+++ /dev/null
@@ -1,98 +0,0 @@
-# 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.services.compute.json import interfaces_client
-from tempest.tests import fake_auth_provider
-from tempest.tests.services.compute import base
-
-
-class TestInterfacesClient(base.BaseComputeServiceTest):
-    # Data Values to be used for testing #
-    FAKE_INTERFACE_DATA = {
-        "fixed_ips": [{
-            "ip_address": "192.168.1.1",
-            "subnet_id": "f8a6e8f8-c2ec-497c-9f23-da9616de54ef"
-            }],
-        "mac_addr": "fa:16:3e:4c:2c:30",
-        "net_id": "3cb9bc59-5699-4588-a4b1-b87f96708bc6",
-        "port_id": "ce531f90-199f-48c0-816c-13e38010b442",
-        "port_state": "ACTIVE"}
-
-    FAKE_SHOW_DATA = {
-        "interfaceAttachment": FAKE_INTERFACE_DATA}
-    FAKE_LIST_DATA = {
-        "interfaceAttachments": [FAKE_INTERFACE_DATA]}
-
-    FAKE_SERVER_ID = "ec14c864-096e-4e27-bb8a-2c2b4dc6f3f5"
-    FAKE_PORT_ID = FAKE_SHOW_DATA['interfaceAttachment']['port_id']
-    func2mock = {
-        'delete': 'tempest.common.service_client.ServiceClient.delete',
-        'get': 'tempest.common.service_client.ServiceClient.get',
-        'post': 'tempest.common.service_client.ServiceClient.post'}
-
-    def setUp(self):
-        super(TestInterfacesClient, self).setUp()
-        fake_auth = fake_auth_provider.FakeAuthProvider()
-        self.client = interfaces_client.InterfacesClient(fake_auth,
-                                                         "compute",
-                                                         "regionOne")
-
-    def _test_interface_operation(self, operation="create", bytes_body=False):
-        response_code = 200
-        expected_op = self.FAKE_SHOW_DATA
-        mock_operation = self.func2mock['get']
-        params = {'server_id': self.FAKE_SERVER_ID,
-                  'port_id': self.FAKE_PORT_ID}
-        if operation == 'list':
-            expected_op = self.FAKE_LIST_DATA
-            function = self.client.list_interfaces
-            params = {'server_id': self.FAKE_SERVER_ID}
-        elif operation == 'show':
-            function = self.client.show_interface
-        elif operation == 'delete':
-            expected_op = {}
-            mock_operation = self.func2mock['delete']
-            function = self.client.delete_interface
-            response_code = 202
-        else:
-            function = self.client.create_interface
-            mock_operation = self.func2mock['post']
-
-        self.check_service_client_function(
-            function, mock_operation, expected_op,
-            bytes_body, response_code, **params)
-
-    def test_list_interfaces_with_str_body(self):
-        self._test_interface_operation('list')
-
-    def test_list_interfaces_with_bytes_body(self):
-        self._test_interface_operation('list', True)
-
-    def test_show_interface_with_str_body(self):
-        self._test_interface_operation('show')
-
-    def test_show_interface_with_bytes_body(self):
-        self._test_interface_operation('show', True)
-
-    def test_delete_interface_with_str_body(self):
-        self._test_interface_operation('delete')
-
-    def test_delete_interface_with_bytes_body(self):
-        self._test_interface_operation('delete', True)
-
-    def test_create_interface_with_str_body(self):
-        self._test_interface_operation()
-
-    def test_create_interface_with_bytes_body(self):
-        self._test_interface_operation(bytes_body=True)
diff --git a/tempest/tests/services/compute/test_volumes_client.py b/tempest/tests/services/compute/test_volumes_client.py
deleted file mode 100644
index 33d4bad..0000000
--- a/tempest/tests/services/compute/test_volumes_client.py
+++ /dev/null
@@ -1,114 +0,0 @@
-# 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 oslotest import mockpatch
-from tempest_lib import exceptions as lib_exc
-
-from tempest.services.compute.json import volumes_client
-from tempest.tests import fake_auth_provider
-from tempest.tests.services.compute import base
-
-
-class TestVolumesClient(base.BaseComputeServiceTest):
-
-    FAKE_VOLUME = {
-        "id": "521752a6-acf6-4b2d-bc7a-119f9148cd8c",
-        "displayName": u"v\u12345ol-001",
-        "displayDescription": u"Another \u1234volume.",
-        "size": 30,
-        "status": "Active",
-        "volumeType": "289da7f8-6440-407c-9fb4-7db01ec49164",
-        "metadata": {
-            "contents": "junk"
-        },
-        "availabilityZone": "us-east1",
-        "snapshotId": None,
-        "attachments": [],
-        "createdAt": "2012-02-14T20:53:07Z"
-    }
-
-    FAKE_VOLUMES = {"volumes": [FAKE_VOLUME]}
-
-    def setUp(self):
-        super(TestVolumesClient, self).setUp()
-        fake_auth = fake_auth_provider.FakeAuthProvider()
-        self.client = volumes_client.VolumesClient(
-            fake_auth, 'compute', 'regionOne')
-
-    def _test_list_volumes(self, bytes_body=False, **params):
-        self.check_service_client_function(
-            self.client.list_volumes,
-            'tempest.common.service_client.ServiceClient.get',
-            self.FAKE_VOLUMES, to_utf=bytes_body, **params)
-
-    def test_list_volumes_with_str_body(self):
-        self._test_list_volumes()
-
-    def test_list_volumes_with_byte_body(self):
-        self._test_list_volumes(bytes_body=True)
-
-    def test_list_volumes_with_params(self):
-        self._test_list_volumes(name='fake')
-
-    def _test_show_volume(self, bytes_body=False):
-        self.check_service_client_function(
-            self.client.show_volume,
-            'tempest.common.service_client.ServiceClient.get',
-            {"volume": self.FAKE_VOLUME},
-            to_utf=bytes_body, volume_id=self.FAKE_VOLUME['id'])
-
-    def test_show_volume_with_str_body(self):
-        self._test_show_volume()
-
-    def test_show_volume_with_bytes_body(self):
-        self._test_show_volume(bytes_body=True)
-
-    def _test_create_volume(self, bytes_body=False):
-        post_body = copy.deepcopy(self.FAKE_VOLUME)
-        del post_body['id']
-        del post_body['createdAt']
-        del post_body['status']
-        self.check_service_client_function(
-            self.client.create_volume,
-            'tempest.common.service_client.ServiceClient.post',
-            {"volume": self.FAKE_VOLUME},
-            to_utf=bytes_body, status=200, **post_body)
-
-    def test_create_volume_with_str_body(self):
-        self._test_create_volume()
-
-    def test_create_volume_with_bytes_body(self):
-        self._test_create_volume(bytes_body=True)
-
-    def test_delete_volume(self):
-        self.check_service_client_function(
-            self.client.delete_volume,
-            'tempest.common.service_client.ServiceClient.delete',
-            {}, status=202, volume_id=self.FAKE_VOLUME['id'])
-
-    def test_is_resource_deleted_true(self):
-        module = ('tempest.services.compute.json.volumes_client.'
-                  'VolumesClient.show_volume')
-        self.useFixture(mockpatch.Patch(
-            module, side_effect=lib_exc.NotFound))
-        self.assertTrue(self.client.is_resource_deleted('fake-id'))
-
-    def test_is_resource_deleted_false(self):
-        module = ('tempest.services.compute.json.volumes_client.'
-                  'VolumesClient.show_volume')
-        self.useFixture(mockpatch.Patch(
-            module, return_value={}))
-        self.assertFalse(self.client.is_resource_deleted('fake-id'))