diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index 9690923..d6d90ba 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -330,6 +330,10 @@
 
  .. _2.47: http://docs.openstack.org/developer/nova/api_microversion_history.html#id42
 
+ * `2.48`_
+
+ .. _2.48: http://docs.openstack.org/developer/nova/api_microversion_history.html#id43
+
 * Volume
 
  * `3.3`_
diff --git a/releasenotes/notes/add-server-diagnostics-validation-schema-b5a3c55b45aa718a.yaml b/releasenotes/notes/add-server-diagnostics-validation-schema-b5a3c55b45aa718a.yaml
new file mode 100644
index 0000000..e0ac87c
--- /dev/null
+++ b/releasenotes/notes/add-server-diagnostics-validation-schema-b5a3c55b45aa718a.yaml
@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Add validation schema for Nova server diagnostics API
\ No newline at end of file
diff --git a/releasenotes/notes/add-volume-groups-tempest-tests-dd7b2abfe2b48427.yaml b/releasenotes/notes/add-volume-groups-tempest-tests-dd7b2abfe2b48427.yaml
new file mode 100644
index 0000000..898d366
--- /dev/null
+++ b/releasenotes/notes/add-volume-groups-tempest-tests-dd7b2abfe2b48427.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - |
+    Add groups and group_types clients for the volume service as library.
+    Add tempest tests for create group, delete group, show group, and
+    list group volume APIs.
diff --git a/releasenotes/notes/set-cinder-api-v3-option-true-1b3e61e3129b7c00.yaml b/releasenotes/notes/set-cinder-api-v3-option-true-1b3e61e3129b7c00.yaml
new file mode 100644
index 0000000..6959ca7
--- /dev/null
+++ b/releasenotes/notes/set-cinder-api-v3-option-true-1b3e61e3129b7c00.yaml
@@ -0,0 +1,5 @@
+---
+upgrade:
+  - |
+    The volume config option 'api_v3' default is changed to
+    ``True`` because the volume v3 API is CURRENT.
diff --git a/tempest/api/compute/admin/test_server_diagnostics.py b/tempest/api/compute/admin/test_server_diagnostics.py
new file mode 100644
index 0000000..005efdd
--- /dev/null
+++ b/tempest/api/compute/admin/test_server_diagnostics.py
@@ -0,0 +1,76 @@
+# Copyright 2017 Mirantis Inc.
+#
+#    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 time
+
+from tempest.api.compute import base
+from tempest.lib import decorators
+
+
+class ServerDiagnosticsTest(base.BaseV2ComputeAdminTest):
+    min_microversion = None
+    max_microversion = '2.47'
+
+    @classmethod
+    def setup_clients(cls):
+        super(ServerDiagnosticsTest, cls).setup_clients()
+        cls.client = cls.os_admin.servers_client
+
+    @decorators.idempotent_id('31ff3486-b8a0-4f56-a6c0-aab460531db3')
+    def test_get_server_diagnostics(self):
+        server_id = self.create_test_server(wait_until='ACTIVE')['id']
+        diagnostics = self.client.show_server_diagnostics(server_id)
+
+        # NOTE(snikitin): Before microversion 2.48 response data from each
+        # hypervisor (libvirt, xen, vmware) was different. None of the fields
+        # were equal. As this test is common for libvirt, xen and vmware CI
+        # jobs we can't check any field in the response because all fields are
+        # different.
+        self.assertNotEmpty(diagnostics)
+
+
+class ServerDiagnosticsV248Test(base.BaseV2ComputeAdminTest):
+    min_microversion = '2.48'
+    max_microversion = 'latest'
+
+    @classmethod
+    def setup_clients(cls):
+        super(ServerDiagnosticsV248Test, cls).setup_clients()
+        cls.client = cls.os_admin.servers_client
+
+    @decorators.idempotent_id('64d0d48c-dff1-11e6-bf01-fe55135034f3')
+    def test_get_server_diagnostics(self):
+        server_id = self.create_test_server(wait_until='ACTIVE')['id']
+        # Response status and filed types will be checked by json schema
+        self.client.show_server_diagnostics(server_id)
+
+        # NOTE(snikitin): This is a special case for Xen hypervisor. In Xen
+        # case we're getting diagnostics stats from the RRDs which are updated
+        # every 5 seconds. It means that diagnostics information may be
+        # incomplete during first 5 seconds of VM life. In such cases methods
+        # which get diagnostics stats from Xen may raise exceptions or
+        # return `NaN` values. Such behavior must be handled correctly.
+        # Response must contain all diagnostics fields (may be with `None`
+        # values) and response status must be 200. Line above checks it by
+        # json schema.
+        time.sleep(10)
+        diagnostics = self.client.show_server_diagnostics(server_id)
+
+        # NOTE(snikitin): After 10 seconds diagnostics fields must contain
+        # not None values. But we will check only "memory_details.maximum"
+        # field because only this field meets all the following conditions:
+        # 1) This field may be unset because of Xen 5 seconds timeout.
+        # 2) This field is present in responses from all three supported
+        #    hypervisors (libvirt, xen, vmware).
+        self.assertIsNotNone(diagnostics['memory_details']['maximum'])
diff --git a/tempest/api/compute/admin/test_server_diagnostics_negative.py b/tempest/api/compute/admin/test_server_diagnostics_negative.py
new file mode 100644
index 0000000..d5b6674
--- /dev/null
+++ b/tempest/api/compute/admin/test_server_diagnostics_negative.py
@@ -0,0 +1,40 @@
+# Copyright 2017 Mirantis Inc.
+#
+#    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.compute import base
+from tempest.lib import decorators
+from tempest.lib import exceptions as lib_exc
+
+
+class ServerDiagnosticsNegativeTest(base.BaseV2ComputeAdminTest):
+    min_microversion = None
+    max_microversion = '2.47'
+
+    @classmethod
+    def setup_clients(cls):
+        super(ServerDiagnosticsNegativeTest, cls).setup_clients()
+        cls.client = cls.servers_client
+
+    @decorators.attr(type=['negative'])
+    @decorators.idempotent_id('e84e2234-60d2-42fa-8b30-e2d3049724ac')
+    def test_get_server_diagnostics_by_non_admin(self):
+        # Non-admin user cannot view server diagnostics according to policy
+        server_id = self.create_test_server(wait_until='ACTIVE')['id']
+        self.assertRaises(lib_exc.Forbidden,
+                          self.client.show_server_diagnostics, server_id)
+
+
+class ServerDiagnosticsNegativeV248Test(ServerDiagnosticsNegativeTest):
+    min_microversion = '2.48'
+    max_microversion = 'latest'
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 789049b..0521cca 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -164,17 +164,6 @@
         server = self.client.show_server(self.s1_id)['server']
         self.assertEqual(server['status'], 'ACTIVE')
 
-    @decorators.skip_because(bug="1240043")
-    @decorators.idempotent_id('31ff3486-b8a0-4f56-a6c0-aab460531db3')
-    def test_get_server_diagnostics_by_admin(self):
-        # Retrieve server diagnostics by admin user
-        diagnostic = self.client.show_server_diagnostics(self.s1_id)
-        basic_attrs = ['rx_packets', 'rx_errors', 'rx_drop',
-                       'tx_packets', 'tx_errors', 'tx_drop',
-                       'read_req', 'write_req', 'cpu', 'memory']
-        for key in basic_attrs:
-            self.assertIn(key, str(diagnostic.keys()))
-
     @decorators.idempotent_id('682cb127-e5bb-4f53-87ce-cb9003604442')
     def test_rebuild_server_in_error_state(self):
         # The server in error state should be rebuilt using the provided
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index ca53696..9023759 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -108,14 +108,6 @@
                           self.client.reset_state, '999', state='error')
 
     @decorators.attr(type=['negative'])
-    @decorators.idempotent_id('e84e2234-60d2-42fa-8b30-e2d3049724ac')
-    def test_get_server_diagnostics_by_non_admin(self):
-        # Non-admin user can not view server diagnostics according to policy
-        self.assertRaises(lib_exc.Forbidden,
-                          self.non_adm_client.show_server_diagnostics,
-                          self.s1_id)
-
-    @decorators.attr(type=['negative'])
     @decorators.idempotent_id('46a4e1ca-87ae-4d28-987a-1b6b136a0221')
     def test_migrate_non_existent_server(self):
         # migrate a non existent server
diff --git a/tempest/api/compute/servers/test_device_tagging.py b/tempest/api/compute/servers/test_device_tagging.py
index 9ab508d..7ee1b02 100644
--- a/tempest/api/compute/servers/test_device_tagging.py
+++ b/tempest/api/compute/servers/test_device_tagging.py
@@ -84,10 +84,14 @@
                 if d['mac'] == self.net_2_200_mac:
                     self.assertEqual(d['tags'], ['net-2-200'])
 
-        found_devices = [d['tags'][0] for d in md_dict['devices']]
-        self.assertItemsEqual(found_devices, ['port-1', 'port-2', 'net-1',
-                                              'net-2-100', 'net-2-200',
-                                              'boot', 'other'])
+            # A hypervisor may present multiple paths to a tagged disk, so
+            # there may be duplicated tags in the metadata, use set() to
+            # remove duplicated tags.
+            found_devices = [d['tags'][0] for d in md_dict['devices']]
+            self.assertEqual(set(found_devices), set(['port-1', 'port-2',
+                                                      'net-1', 'net-2-100',
+                                                      'net-2-200', 'boot',
+                                                      'other']))
 
     @decorators.idempotent_id('a2e65a6c-66f1-4442-aaa8-498c31778d96')
     @test.services('network', 'volume', 'image')
diff --git a/tempest/api/volume/admin/test_groups.py b/tempest/api/volume/admin/test_groups.py
new file mode 100644
index 0000000..8609bdb
--- /dev/null
+++ b/tempest/api/volume/admin/test_groups.py
@@ -0,0 +1,109 @@
+# Copyright (C) 2017 Dell Inc. or its subsidiaries.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest.api.volume import base
+from tempest.common import waiters
+from tempest import config
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+
+CONF = config.CONF
+
+
+class GroupsTest(base.BaseVolumeAdminTest):
+    _api_version = 3
+    min_microversion = '3.14'
+    max_microversion = 'latest'
+
+    def _delete_group(self, grp_id, delete_volumes=True):
+        self.admin_groups_client.delete_group(grp_id, delete_volumes)
+        vols = self.admin_volume_client.list_volumes(detail=True)['volumes']
+        for vol in vols:
+            if vol['group_id'] == grp_id:
+                self.admin_volume_client.wait_for_resource_deletion(vol['id'])
+        self.admin_groups_client.wait_for_resource_deletion(grp_id)
+
+    @decorators.idempotent_id('4b111d28-b73d-4908-9bd2-03dc2992e4d4')
+    def test_group_create_show_list_delete(self):
+        # Create volume type
+        volume_type = self.create_volume_type()
+
+        # Create group type
+        group_type = self.create_group_type()
+
+        # Create group
+        grp1_name = data_utils.rand_name('Group1')
+        grp1 = self.admin_groups_client.create_group(
+            group_type=group_type['id'],
+            volume_types=[volume_type['id']],
+            name=grp1_name)['group']
+        waiters.wait_for_volume_resource_status(
+            self.admin_groups_client, grp1['id'], 'available')
+        grp1_id = grp1['id']
+
+        grp2_name = data_utils.rand_name('Group2')
+        grp2 = self.admin_groups_client.create_group(
+            group_type=group_type['id'],
+            volume_types=[volume_type['id']],
+            name=grp2_name)['group']
+        waiters.wait_for_volume_resource_status(
+            self.admin_groups_client, grp2['id'], 'available')
+        grp2_id = grp2['id']
+
+        # Create volume
+        vol1_name = data_utils.rand_name("volume")
+        params = {'name': vol1_name,
+                  'volume_type': volume_type['id'],
+                  'group_id': grp1['id'],
+                  'size': CONF.volume.volume_size}
+        vol1 = self.admin_volume_client.create_volume(**params)['volume']
+        self.assertEqual(grp1['id'], vol1['group_id'])
+        waiters.wait_for_volume_resource_status(
+            self.admin_volume_client, vol1['id'], 'available')
+        vol1_id = vol1['id']
+
+        # Get a given group
+        grp1 = self.admin_groups_client.show_group(grp1['id'])['group']
+        self.assertEqual(grp1_name, grp1['name'])
+        self.assertEqual(grp1_id, grp1['id'])
+
+        grp2 = self.admin_groups_client.show_group(grp2['id'])['group']
+        self.assertEqual(grp2_name, grp2['name'])
+        self.assertEqual(grp2_id, grp2['id'])
+
+        # Get all groups with detail
+        grps = self.admin_groups_client.list_groups(
+            detail=True)['groups']
+        filtered_grps = [g for g in grps if g['id'] in [grp1_id, grp2_id]]
+        self.assertEqual(2, len(filtered_grps))
+        for grp in filtered_grps:
+            self.assertEqual([volume_type['id']], grp['volume_types'])
+            self.assertEqual(group_type['id'], grp['group_type'])
+
+        vols = self.admin_volume_client.list_volumes(
+            detail=True)['volumes']
+        filtered_vols = [v for v in vols if v['id'] in [vol1_id]]
+        self.assertEqual(1, len(filtered_vols))
+        for vol in filtered_vols:
+            self.assertEqual(grp1_id, vol['group_id'])
+
+        # Delete group
+        # grp1 has a volume so delete_volumes flag is set to True by default
+        self._delete_group(grp1_id)
+        # grp2 is empty so delete_volumes flag can be set to False
+        self._delete_group(grp2_id, delete_volumes=False)
+        grps = self.admin_groups_client.list_groups(
+            detail=True)['groups']
+        self.assertEmpty(grps)
diff --git a/tempest/api/volume/admin/test_snapshot_manage.py b/tempest/api/volume/admin/test_snapshot_manage.py
index 6c09042..9ff7160 100644
--- a/tempest/api/volume/admin/test_snapshot_manage.py
+++ b/tempest/api/volume/admin/test_snapshot_manage.py
@@ -18,6 +18,7 @@
 from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
+from tempest.lib import exceptions
 
 CONF = config.CONF
 
@@ -38,8 +39,9 @@
             raise cls.skipException("Manage snapshot tests are disabled")
 
         if len(CONF.volume.manage_snapshot_ref) != 2:
-            raise cls.skipException("Manage snapshot ref is not correctly "
-                                    "configured")
+            msg = ("Manage snapshot ref is not correctly configured, "
+                   "it should be a list of two elements")
+            raise exceptions.InvalidConfiguration(msg)
 
     @decorators.idempotent_id('0132f42d-0147-4b45-8501-cc504bbf7810')
     def test_unmanage_manage_snapshot(self):
diff --git a/tempest/api/volume/admin/test_volume_manage.py b/tempest/api/volume/admin/test_volume_manage.py
index a039085..4b352e0 100644
--- a/tempest/api/volume/admin/test_volume_manage.py
+++ b/tempest/api/volume/admin/test_volume_manage.py
@@ -18,6 +18,7 @@
 from tempest import config
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
+from tempest.lib import exceptions
 
 CONF = config.CONF
 
@@ -32,8 +33,9 @@
             raise cls.skipException("Manage volume tests are disabled")
 
         if len(CONF.volume.manage_volume_ref) != 2:
-            raise cls.skipException("Manage volume ref is not correctly "
-                                    "configured")
+            msg = ("Manage volume ref is not correctly configured, "
+                   "it should be a list of two elements")
+            raise exceptions.InvalidConfiguration(msg)
 
     @decorators.idempotent_id('70076c71-0ce1-4208-a8ff-36a66e65cc1e')
     def test_unmanage_manage_volume(self):
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index 8d66156..394c453 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -71,6 +71,8 @@
 
         cls.snapshots_client = cls.os_primary.snapshots_v2_client
         cls.volumes_client = cls.os_primary.volumes_v2_client
+        if cls._api_version == 3:
+            cls.volumes_client = cls.os_primary.volumes_v3_client
         cls.backups_client = cls.os_primary.backups_v2_client
         cls.volumes_extension_client =\
             cls.os_primary.volumes_v2_extension_client
@@ -79,9 +81,7 @@
         cls.volume_limits_client = cls.os_primary.volume_v2_limits_client
         cls.messages_client = cls.os_primary.volume_v3_messages_client
         cls.versions_client = cls.os_primary.volume_v3_versions_client
-
-        if cls._api_version == 3:
-            cls.volumes_client = cls.os_primary.volumes_v3_client
+        cls.groups_client = cls.os_primary.groups_v3_client
 
     def setUp(self):
         super(BaseVolumeTest, self).setUp()
@@ -253,6 +253,8 @@
         cls.admin_volume_types_client = cls.os_admin.volume_types_v2_client
         cls.admin_volume_manage_client = cls.os_admin.volume_manage_v2_client
         cls.admin_volume_client = cls.os_admin.volumes_v2_client
+        if cls._api_version == 3:
+            cls.admin_volume_client = cls.os_admin.volumes_v3_client
         cls.admin_hosts_client = cls.os_admin.volume_hosts_v2_client
         cls.admin_snapshot_manage_client = \
             cls.os_admin.snapshot_manage_v2_client
@@ -269,9 +271,8 @@
         cls.admin_scheduler_stats_client = \
             cls.os_admin.volume_scheduler_stats_v2_client
         cls.admin_messages_client = cls.os_admin.volume_v3_messages_client
-
-        if cls._api_version == 3:
-            cls.admin_volume_client = cls.os_admin.volumes_v3_client
+        cls.admin_groups_client = cls.os_admin.groups_v3_client
+        cls.admin_group_types_client = cls.os_admin.group_types_v3_client
 
     @classmethod
     def resource_setup(cls):
@@ -305,6 +306,16 @@
         cls.volume_types.append(volume_type['id'])
         return volume_type
 
+    def create_group_type(self, name=None, **kwargs):
+        """Create a test group-type"""
+        name = name or data_utils.rand_name(
+            self.__class__.__name__ + '-group-type')
+        group_type = self.admin_group_types_client.create_group_type(
+            name=name, **kwargs)['group_type']
+        self.addCleanup(self.admin_group_types_client.delete_group_type,
+                        group_type['id'])
+        return group_type
+
     @classmethod
     def clear_qos_specs(cls):
         for qos_id in cls.qos_specs:
diff --git a/tempest/clients.py b/tempest/clients.py
index 8ad6e92..d29bef9 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -255,6 +255,8 @@
             self.volume_v2.QuotaClassesClient()
         self.volumes_extension_client = self.volume_v1.ExtensionsClient()
         self.volumes_v2_extension_client = self.volume_v2.ExtensionsClient()
+        self.groups_v3_client = self.volume_v3.GroupsClient()
+        self.group_types_v3_client = self.volume_v3.GroupTypesClient()
         self.volume_availability_zone_client = \
             self.volume_v1.AvailabilityZoneClient()
         self.volume_v2_availability_zone_client = \
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 9110c4a..9f467fe 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -204,6 +204,19 @@
                         except Exception:
                             LOG.exception('Deleting server %s failed',
                                           server['id'])
+                    for server in servers:
+                        # NOTE(artom) If the servers were booted with volumes
+                        # and with delete_on_termination=False we need to wait
+                        # for the servers to go away before proceeding with
+                        # cleanup, otherwise we'll attempt to delete the
+                        # volumes while they're still attached to servers that
+                        # are in the process of being deleted.
+                        try:
+                            waiters.wait_for_server_termination(
+                                clients.servers_client, server['id'])
+                        except Exception:
+                            LOG.exception('Server %s failed to delete in time',
+                                          server['id'])
 
     return body, servers
 
@@ -252,16 +265,34 @@
     def __init__(self, client_socket, url):
         """Contructor for the WebSocket wrapper to the socket."""
         self._socket = client_socket
+        # cached stream for early frames.
+        self.cached_stream = b''
         # Upgrade the HTTP connection to a WebSocket
         self._upgrade(url)
 
+    def _recv(self, recv_size):
+        """Wrapper to receive data from the cached stream or socket."""
+        if recv_size <= 0:
+            return None
+
+        data_from_cached = b''
+        data_from_socket = b''
+        if len(self.cached_stream) > 0:
+            read_from_cached = min(len(self.cached_stream), recv_size)
+            data_from_cached += self.cached_stream[:read_from_cached]
+            self.cached_stream = self.cached_stream[read_from_cached:]
+            recv_size -= read_from_cached
+        if recv_size > 0:
+            data_from_socket = self._socket.recv(recv_size)
+        return data_from_cached + data_from_socket
+
     def receive_frame(self):
         """Wrapper for receiving data to parse the WebSocket frame format"""
         # We need to loop until we either get some bytes back in the frame
         # or no data was received (meaning the socket was closed).  This is
         # done to handle the case where we get back some empty frames
         while True:
-            header = self._socket.recv(2)
+            header = self._recv(2)
             # If we didn't receive any data, just return None
             if not header:
                 return None
@@ -270,7 +301,7 @@
             # that only the 2nd byte contains the length, and since the
             # server doesn't do masking, we can just read the data length
             if ord_func(header[1]) & 127 > 0:
-                return self._socket.recv(ord_func(header[1]) & 127)
+                return self._recv(ord_func(header[1]) & 127)
 
     def send_frame(self, data):
         """Wrapper for sending data to add in the WebSocket frame format."""
@@ -318,6 +349,15 @@
         self._socket.sendall(reqdata.encode('utf8'))
         self.response = data = self._socket.recv(4096)
         # Loop through & concatenate all of the data in the response body
-        while data and self.response.find(b'\r\n\r\n') < 0:
+        end_loc = self.response.find(b'\r\n\r\n')
+        while data and end_loc < 0:
             data = self._socket.recv(4096)
             self.response += data
+            end_loc = self.response.find(b'\r\n\r\n')
+
+        if len(self.response) > end_loc + 4:
+            # In case some frames (e.g. the first RFP negotiation) have
+            # arrived, cache it for next reading.
+            self.cached_stream = self.response[end_loc + 4:]
+            # ensure response ends with '\r\n\r\n'.
+            self.response = self.response[:end_loc + 4]
diff --git a/tempest/common/waiters.py b/tempest/common/waiters.py
index 9c83c99..93e6fbf 100644
--- a/tempest/common/waiters.py
+++ b/tempest/common/waiters.py
@@ -186,8 +186,9 @@
     resources. The function extracts the name of the desired resource from
     the client class name of the resource.
     """
-    resource_name = re.findall(r'(Volume|Snapshot|Backup)',
-                               client.__class__.__name__)[0].lower()
+    resource_name = re.findall(
+        r'(Volume|Snapshot|Backup|Group)',
+        client.__class__.__name__)[0].lower()
     show_resource = getattr(client, 'show_' + resource_name)
     resource_status = show_resource(resource_id)[resource_name]['status']
     start = int(time.time())
diff --git a/tempest/config.py b/tempest/config.py
index fbe0a1b..7b96281 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -832,7 +832,7 @@
                 default=True,
                 help="Is the v2 volume API enabled"),
     cfg.BoolOpt('api_v3',
-                default=False,
+                default=True,
                 help="Is the v3 volume API enabled")
 ]
 
diff --git a/tempest/lib/api_schema/response/compute/v2_1/servers.py b/tempest/lib/api_schema/response/compute/v2_1/servers.py
index 33a7757..7360396 100644
--- a/tempest/lib/api_schema/response/compute/v2_1/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_1/servers.py
@@ -582,3 +582,10 @@
         'required': ['adminPass']
     }
 }
+
+show_server_diagnostics = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object'
+    }
+}
diff --git a/tempest/lib/api_schema/response/compute/v2_48/__init__.py b/tempest/lib/api_schema/response/compute/v2_48/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_48/__init__.py
diff --git a/tempest/lib/api_schema/response/compute/v2_48/servers.py b/tempest/lib/api_schema/response/compute/v2_48/servers.py
new file mode 100644
index 0000000..5904758
--- /dev/null
+++ b/tempest/lib/api_schema/response/compute/v2_48/servers.py
@@ -0,0 +1,115 @@
+# Copyright 2017 Mirantis Inc.
+#
+#    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
+from tempest.lib.api_schema.response.compute.v2_47 import servers as servers247
+
+
+show_server_diagnostics = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'state': {
+                'type': 'string', 'enum': [
+                    'pending', 'running', 'paused', 'shutdown', 'crashed',
+                    'suspended']
+            },
+            'driver': {
+                'type': 'string', 'enum': [
+                    'libvirt', 'xenapi', 'vmwareapi', 'ironic', 'hyperv']
+            },
+            'hypervisor': {'type': ['string', 'null']},
+            'hypervisor_os': {'type': ['string', 'null']},
+            'uptime': {'type': ['integer', 'null']},
+            'config_drive': {'type': 'boolean'},
+            'num_cpus': {'type': 'integer'},
+            'num_nics': {'type': 'integer'},
+            'num_disks': {'type': 'integer'},
+            'memory_details': {
+                'type': 'object',
+                'properties': {
+                    'maximum': {'type': ['integer', 'null']},
+                    'used': {'type': ['integer', 'null']}
+                },
+                'additionalProperties': False,
+                'required': ['maximum', 'used']
+            },
+            'cpu_details': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'id': {'type': ['integer', 'null']},
+                        'time': {'type': ['integer', 'null']},
+                        'utilisation': {'type': ['integer', 'null']}
+                    },
+                    'additionalProperties': False,
+                    'required': ['id', 'time', 'utilisation']
+                }
+            },
+            'nic_details': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'mac_address': {'oneOf': [parameter_types.mac_address,
+                                                  {'type': 'null'}]},
+                        'rx_octets': {'type': ['integer', 'null']},
+                        'rx_errors': {'type': ['integer', 'null']},
+                        'rx_drop': {'type': ['integer', 'null']},
+                        'rx_packets': {'type': ['integer', 'null']},
+                        'rx_rate': {'type': ['integer', 'null']},
+                        'tx_octets': {'type': ['integer', 'null']},
+                        'tx_errors': {'type': ['integer', 'null']},
+                        'tx_drop': {'type': ['integer', 'null']},
+                        'tx_packets': {'type': ['integer', 'null']},
+                        'tx_rate': {'type': ['integer', 'null']}
+                    },
+                    'additionalProperties': False,
+                    'required': ['mac_address', 'rx_octets', 'rx_errors',
+                                 'rx_drop',
+                                 'rx_packets', 'rx_rate', 'tx_octets',
+                                 'tx_errors',
+                                 'tx_drop', 'tx_packets', 'tx_rate']
+                }
+            },
+            'disk_details': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'read_bytes': {'type': ['integer', 'null']},
+                        'read_requests': {'type': ['integer', 'null']},
+                        'write_bytes': {'type': ['integer', 'null']},
+                        'write_requests': {'type': ['integer', 'null']},
+                        'errors_count': {'type': ['integer', 'null']}
+                    },
+                    'additionalProperties': False,
+                    'required': ['read_bytes', 'read_requests', 'write_bytes',
+                                 'write_requests', 'errors_count']
+                }
+            }
+        },
+        'additionalProperties': False,
+        'required': [
+            'state', 'driver', 'hypervisor', 'hypervisor_os', 'uptime',
+            'config_drive', 'num_cpus', 'num_nics', 'num_disks',
+            'memory_details', 'cpu_details', 'nic_details', 'disk_details'],
+    }
+}
+
+get_server = copy.deepcopy(servers247.get_server)
diff --git a/tempest/lib/services/compute/servers_client.py b/tempest/lib/services/compute/servers_client.py
index e93cdbf..598d5a6 100644
--- a/tempest/lib/services/compute/servers_client.py
+++ b/tempest/lib/services/compute/servers_client.py
@@ -28,6 +28,7 @@
 from tempest.lib.api_schema.response.compute.v2_26 import servers as schemav226
 from tempest.lib.api_schema.response.compute.v2_3 import servers as schemav23
 from tempest.lib.api_schema.response.compute.v2_47 import servers as schemav247
+from tempest.lib.api_schema.response.compute.v2_48 import servers as schemav248
 from tempest.lib.api_schema.response.compute.v2_6 import servers as schemav26
 from tempest.lib.api_schema.response.compute.v2_9 import servers as schemav29
 from tempest.lib.common import rest_client
@@ -45,7 +46,8 @@
         {'min': '2.16', 'max': '2.18', 'schema': schemav216},
         {'min': '2.19', 'max': '2.25', 'schema': schemav219},
         {'min': '2.26', 'max': '2.46', 'schema': schemav226},
-        {'min': '2.47', 'max': None, 'schema': schemav247}]
+        {'min': '2.47', 'max': '2.47', 'schema': schemav247},
+        {'min': '2.48', 'max': None, 'schema': schemav248}]
 
     def __init__(self, auth_provider, service, region,
                  enable_instance_password=True, **kwargs):
@@ -658,7 +660,10 @@
     def show_server_diagnostics(self, server_id):
         """Get the usage data for a server."""
         resp, body = self.get("servers/%s/diagnostics" % server_id)
-        return rest_client.ResponseBody(resp, json.loads(body))
+        body = json.loads(body)
+        schema = self.get_schema(self.schema_versions_info)
+        self.validate_response(schema.show_server_diagnostics, resp, body)
+        return rest_client.ResponseBody(resp, body)
 
     def list_instance_actions(self, server_id):
         """List the provided server action."""
diff --git a/tempest/lib/services/network/base.py b/tempest/lib/services/network/base.py
index b6f9c91..fe8b244 100644
--- a/tempest/lib/services/network/base.py
+++ b/tempest/lib/services/network/base.py
@@ -54,7 +54,8 @@
         self.expected_success(200, resp.status)
         return rest_client.ResponseBody(resp, body)
 
-    def create_resource(self, uri, post_data, expect_empty_body=False):
+    def create_resource(self, uri, post_data, expect_empty_body=False,
+                        expect_response_code=201):
         req_uri = self.uri_prefix + uri
         req_post_data = json.dumps(post_data)
         resp, body = self.post(req_uri, req_post_data)
@@ -65,10 +66,11 @@
             body = json.loads(body)
         else:
             body = None
-        self.expected_success(201, resp.status)
+        self.expected_success(expect_response_code, resp.status)
         return rest_client.ResponseBody(resp, body)
 
-    def update_resource(self, uri, post_data, expect_empty_body=False):
+    def update_resource(self, uri, post_data, expect_empty_body=False,
+                        expect_response_code=200):
         req_uri = self.uri_prefix + uri
         req_post_data = json.dumps(post_data)
         resp, body = self.put(req_uri, req_post_data)
@@ -79,5 +81,5 @@
             body = json.loads(body)
         else:
             body = None
-        self.expected_success(200, resp.status)
+        self.expected_success(expect_response_code, resp.status)
         return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/network/tags_client.py b/tempest/lib/services/network/tags_client.py
index 20c2c11..5d49a79 100644
--- a/tempest/lib/services/network/tags_client.py
+++ b/tempest/lib/services/network/tags_client.py
@@ -27,14 +27,10 @@
         For more information, please refer to the official API reference:
         http://developer.openstack.org/api-ref/networking/v2/index.html#add-a-tag
         """
-        # NOTE(felipemonteiro): Cannot use ``update_resource`` method because
-        # this API requires self.put but returns 201 instead of 200 expected
-        # by ``update_resource``.
-        uri = '%s/%s/%s/tags/%s' % (
-            self.uri_prefix, resource_type, resource_id, tag)
-        resp, _ = self.put(uri, json.dumps({}))
-        self.expected_success(201, resp.status)
-        return rest_client.ResponseBody(resp)
+        uri = '/%s/%s/tags/%s' % (resource_type, resource_id, tag)
+        return self.update_resource(
+            uri, json.dumps({}), expect_response_code=201,
+            expect_empty_body=True)
 
     def check_tag_existence(self, resource_type, resource_id, tag):
         """Confirm that a given tag is set on the resource.
diff --git a/tempest/lib/services/volume/v2/encryption_types_client.py b/tempest/lib/services/volume/v2/encryption_types_client.py
index eeff537..20f3356 100755
--- a/tempest/lib/services/volume/v2/encryption_types_client.py
+++ b/tempest/lib/services/volume/v2/encryption_types_client.py
@@ -50,9 +50,9 @@
     def create_encryption_type(self, volume_type_id, **kwargs):
         """Create encryption type.
 
-        TODO: 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.
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#create-an-encryption-type-for-v2
         """
         url = "/types/%s/encryption" % volume_type_id
         post_body = json.dumps({'encryption': kwargs})
@@ -71,9 +71,9 @@
     def update_encryption_type(self, volume_type_id, **kwargs):
         """Update an encryption type for an existing volume type.
 
-        TODO: 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.
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#update-an-encryption-type-for-v2
         """
         url = "/types/%s/encryption/provider" % volume_type_id
         put_body = json.dumps({'encryption': kwargs})
diff --git a/tempest/lib/services/volume/v2/hosts_client.py b/tempest/lib/services/volume/v2/hosts_client.py
index 8fcf4d0..f44bda3 100644
--- a/tempest/lib/services/volume/v2/hosts_client.py
+++ b/tempest/lib/services/volume/v2/hosts_client.py
@@ -24,8 +24,12 @@
     api_version = "v2"
 
     def list_hosts(self, **params):
-        """Lists all hosts."""
+        """Lists all hosts.
 
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#list-all-hosts
+        """
         url = 'os-hosts'
         if params:
             url += '?%s' % urllib.urlencode(params)
diff --git a/tempest/lib/services/volume/v2/snapshots_client.py b/tempest/lib/services/volume/v2/snapshots_client.py
index 983ed89..5f4e7de 100644
--- a/tempest/lib/services/volume/v2/snapshots_client.py
+++ b/tempest/lib/services/volume/v2/snapshots_client.py
@@ -124,7 +124,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def create_snapshot_metadata(self, snapshot_id, metadata):
-        """Create metadata for the snapshot."""
+        """Create metadata for the snapshot.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/block-storage/v2/#create-snapshot-metadata
+        """
         put_body = json.dumps({'metadata': metadata})
         url = "snapshots/%s/metadata" % snapshot_id
         resp, body = self.post(url, put_body)
diff --git a/tempest/lib/services/volume/v2/volumes_client.py b/tempest/lib/services/volume/v2/volumes_client.py
index f4e7c6a..86e3836 100644
--- a/tempest/lib/services/volume/v2/volumes_client.py
+++ b/tempest/lib/services/volume/v2/volumes_client.py
@@ -72,6 +72,10 @@
         """List all the volumes created.
 
         Params can be a string (must be urlencoded) or a dictionary.
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/block-storage/v2/#list-volumes-with-details
+        http://developer.openstack.org/api-ref/block-storage/v2/#list-volumes
         """
         url = 'volumes'
         if detail:
@@ -155,7 +159,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def set_bootable_volume(self, volume_id, **kwargs):
-        """set a bootable flag for a volume - true or false."""
+        """Set a bootable flag for a volume - true or false.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/block-storage/v2/#update-volume-bootable-status
+        """
         post_body = json.dumps({'os-set_bootable': kwargs})
         url = 'volumes/%s/action' % (volume_id)
         resp, body = self.post(url, post_body)
@@ -239,7 +248,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def create_volume_metadata(self, volume_id, metadata):
-        """Create metadata for the volume."""
+        """Create metadata for the volume.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/block-storage/v2/#create-volume-metadata
+        """
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % volume_id
         resp, body = self.post(url, put_body)
@@ -256,7 +270,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def update_volume_metadata(self, volume_id, metadata):
-        """Update metadata for the volume."""
+        """Update metadata for the volume.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        http://developer.openstack.org/api-ref/block-storage/v2/#update-volume-metadata
+        """
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % volume_id
         resp, body = self.put(url, put_body)
@@ -281,7 +300,12 @@
         return rest_client.ResponseBody(resp, body)
 
     def retype_volume(self, volume_id, **kwargs):
-        """Updates volume with new volume type."""
+        """Updates volume with new volume type.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v2/#retype-volume
+        """
         post_body = json.dumps({'os-retype': kwargs})
         resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         self.expected_success(202, resp.status)
diff --git a/tempest/lib/services/volume/v3/__init__.py b/tempest/lib/services/volume/v3/__init__.py
index 07ae917..a351d61 100644
--- a/tempest/lib/services/volume/v3/__init__.py
+++ b/tempest/lib/services/volume/v3/__init__.py
@@ -13,8 +13,11 @@
 # the License.
 
 from tempest.lib.services.volume.v3.base_client import BaseClient
+from tempest.lib.services.volume.v3.group_types_client import GroupTypesClient
+from tempest.lib.services.volume.v3.groups_client import GroupsClient
 from tempest.lib.services.volume.v3.messages_client import MessagesClient
 from tempest.lib.services.volume.v3.versions_client import VersionsClient
 from tempest.lib.services.volume.v3.volumes_client import VolumesClient
 
-__all__ = ['MessagesClient', 'BaseClient', 'VersionsClient', 'VolumesClient']
+__all__ = ['BaseClient', 'GroupsClient', 'GroupTypesClient',
+           'MessagesClient', 'VersionsClient', 'VolumesClient']
diff --git a/tempest/lib/services/volume/v3/group_types_client.py b/tempest/lib/services/volume/v3/group_types_client.py
new file mode 100644
index 0000000..390d44d
--- /dev/null
+++ b/tempest/lib/services/volume/v3/group_types_client.py
@@ -0,0 +1,47 @@
+# Copyright (C) 2017 Dell Inc. or its subsidiaries.
+# 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.lib.common import rest_client
+from tempest.lib.services.volume.v3 import base_client
+
+
+class GroupTypesClient(base_client.BaseClient):
+    """Client class to send CRUD Volume V3 Group Types API requests"""
+
+    @property
+    def resource_type(self):
+        """Returns the primary type of resource this client works with."""
+        return 'group-type'
+
+    def create_group_type(self, **kwargs):
+        """Create group_type.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#create-group-type
+        """
+        post_body = json.dumps({'group_type': kwargs})
+        resp, body = self.post('group_types', post_body)
+        body = json.loads(body)
+        self.expected_success(202, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_group_type(self, group_type_id):
+        """Deletes the specified group_type."""
+        resp, body = self.delete("group_types/%s" % group_type_id)
+        self.expected_success(202, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/volume/v3/groups_client.py b/tempest/lib/services/volume/v3/groups_client.py
new file mode 100644
index 0000000..c06997a
--- /dev/null
+++ b/tempest/lib/services/volume/v3/groups_client.py
@@ -0,0 +1,96 @@
+# Copyright (C) 2017 Dell Inc. or its subsidiaries.
+# 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.common import rest_client
+from tempest.lib import exceptions as lib_exc
+from tempest.lib.services.volume.v3 import base_client
+
+
+class GroupsClient(base_client.BaseClient):
+    """Client class to send CRUD Volume Group API requests"""
+
+    def create_group(self, **kwargs):
+        """Creates a group.
+
+        group_type and volume_types are required parameters in kwargs.
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#create-group
+        """
+        post_body = json.dumps({'group': kwargs})
+        resp, body = self.post('groups', post_body)
+        body = json.loads(body)
+        self.expected_success(202, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_group(self, group_id, delete_volumes=True):
+        """Deletes a group.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#delete-group
+        """
+        post_body = {'delete-volumes': delete_volumes}
+        post_body = json.dumps({'delete': post_body})
+        resp, body = self.post('groups/%s/action' % group_id,
+                               post_body)
+        self.expected_success(202, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def show_group(self, group_id):
+        """Returns the details of a single group.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#show-group-details
+        """
+        url = "groups/%s" % str(group_id)
+        resp, body = self.get(url)
+        body = json.loads(body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_groups(self, detail=False, **params):
+        """Lists information for all the tenant's groups.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/block-storage/v3/#list-groups
+        https://developer.openstack.org/api-ref/block-storage/v3/#list-groups-with-details
+        """
+        url = "groups"
+        if detail:
+            url += "/detail"
+        if params:
+            url += '?%s' % urllib.urlencode(params)
+        resp, body = self.get(url)
+        body = json.loads(body)
+        self.expected_success(200, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def is_resource_deleted(self, id):
+        try:
+            self.show_group(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 'group'
diff --git a/tempest/tests/cmd/test_verify_tempest_config.py b/tempest/tests/cmd/test_verify_tempest_config.py
index 640dcd4..b0e74fb 100644
--- a/tempest/tests/cmd/test_verify_tempest_config.py
+++ b/tempest/tests/cmd/test_verify_tempest_config.py
@@ -199,7 +199,9 @@
         with mock.patch.object(verify_tempest_config,
                                'print_and_or_update') as print_mock:
             verify_tempest_config.verify_cinder_api_versions(fake_os, True)
-        print_mock.assert_not_called()
+        print_mock.assert_any_call('api_v3', 'volume-feature-enabled',
+                                   False, True)
+        self.assertEqual(1, print_mock.call_count)
 
     @mock.patch('tempest.lib.common.http.ClosingHttp.request')
     def test_verify_cinder_api_versions_no_v2(self, mock_request):
@@ -215,9 +217,7 @@
             verify_tempest_config.verify_cinder_api_versions(fake_os, True)
         print_mock.assert_any_call('api_v2', 'volume-feature-enabled',
                                    False, True)
-        print_mock.assert_any_call('api_v3', 'volume-feature-enabled',
-                                   True, True)
-        self.assertEqual(2, print_mock.call_count)
+        self.assertEqual(1, print_mock.call_count)
 
     @mock.patch('tempest.lib.common.http.ClosingHttp.request')
     def test_verify_cinder_api_versions_no_v1(self, mock_request):
@@ -231,9 +231,7 @@
         with mock.patch.object(verify_tempest_config,
                                'print_and_or_update') as print_mock:
             verify_tempest_config.verify_cinder_api_versions(fake_os, True)
-        print_mock.assert_any_call('api_v3', 'volume-feature-enabled',
-                                   True, True)
-        self.assertEqual(1, print_mock.call_count)
+        print_mock.assert_not_called()
 
     def test_verify_glance_version_no_v2_with_v1_1(self):
         def fake_get_versions():
diff --git a/tempest/tests/common/test_compute.py b/tempest/tests/common/test_compute.py
new file mode 100644
index 0000000..c108be9
--- /dev/null
+++ b/tempest/tests/common/test_compute.py
@@ -0,0 +1,106 @@
+# Copyright 2017 Citrix Systems
+# 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 six.moves.urllib import parse as urlparse
+
+import mock
+
+from tempest.common import compute
+from tempest.tests import base
+
+
+class TestCompute(base.TestCase):
+    def setUp(self):
+        super(TestCompute, self).setUp()
+        self.client_sock = mock.Mock()
+        self.url = urlparse.urlparse("http://www.fake.com:80")
+
+    def test_rfp_frame_not_cached(self):
+        # rfp negotiation frame arrived separately after upgrade
+        # response, so it's not cached.
+        RFP_VERSION = b'RFB.003.003\x0a'
+        rfp_frame_header = b'\x82\x0c'
+
+        self.client_sock.recv.side_effect = [
+            b'fake response start\r\n',
+            b'fake response end\r\n\r\n',
+            rfp_frame_header,
+            RFP_VERSION]
+        expect_response = b'fake response start\r\nfake response end\r\n\r\n'
+
+        webSocket = compute._WebSocket(self.client_sock, self.url)
+
+        self.assertEqual(webSocket.response, expect_response)
+        # no cache
+        self.assertEqual(webSocket.cached_stream, b'')
+        self.client_sock.recv.assert_has_calls([mock.call(4096),
+                                                mock.call(4096)])
+
+        self.client_sock.recv.reset_mock()
+        recv_version = webSocket.receive_frame()
+
+        self.assertEqual(recv_version, RFP_VERSION)
+        self.client_sock.recv.assert_has_calls([mock.call(2),
+                                                mock.call(12)])
+
+    def test_rfp_frame_fully_cached(self):
+        RFP_VERSION = b'RFB.003.003\x0a'
+        rfp_version_frame = b'\x82\x0c%s' % RFP_VERSION
+
+        self.client_sock.recv.side_effect = [
+            b'fake response start\r\n',
+            b'fake response end\r\n\r\n%s' % rfp_version_frame]
+        expect_response = b'fake response start\r\nfake response end\r\n\r\n'
+        webSocket = compute._WebSocket(self.client_sock, self.url)
+
+        self.client_sock.recv.assert_has_calls([mock.call(4096),
+                                                mock.call(4096)])
+        self.assertEqual(webSocket.response, expect_response)
+        self.assertEqual(webSocket.cached_stream, rfp_version_frame)
+
+        self.client_sock.recv.reset_mock()
+        recv_version = webSocket.receive_frame()
+
+        self.client_sock.recv.assert_not_called()
+        self.assertEqual(recv_version, RFP_VERSION)
+        # cached_stream should be empty in the end.
+        self.assertEqual(webSocket.cached_stream, b'')
+
+    def test_rfp_frame_partially_cached(self):
+        RFP_VERSION = b'RFB.003.003\x0a'
+        rfp_version_frame = b'\x82\x0c%s' % RFP_VERSION
+        frame_part1 = rfp_version_frame[:6]
+        frame_part2 = rfp_version_frame[6:]
+
+        self.client_sock.recv.side_effect = [
+            b'fake response start\r\n',
+            b'fake response end\r\n\r\n%s' % frame_part1,
+            frame_part2]
+        expect_response = b'fake response start\r\nfake response end\r\n\r\n'
+        webSocket = compute._WebSocket(self.client_sock, self.url)
+
+        self.client_sock.recv.assert_has_calls([mock.call(4096),
+                                                mock.call(4096)])
+        self.assertEqual(webSocket.response, expect_response)
+        self.assertEqual(webSocket.cached_stream, frame_part1)
+
+        self.client_sock.recv.reset_mock()
+
+        recv_version = webSocket.receive_frame()
+
+        self.client_sock.recv.assert_called_once_with(len(frame_part2))
+        self.assertEqual(recv_version, RFP_VERSION)
+        # cached_stream should be empty in the end.
+        self.assertEqual(webSocket.cached_stream, b'')
diff --git a/tempest/tests/lib/services/compute/test_servers_client.py b/tempest/tests/lib/services/compute/test_servers_client.py
index a857329..86f6ad5 100644
--- a/tempest/tests/lib/services/compute/test_servers_client.py
+++ b/tempest/tests/lib/services/compute/test_servers_client.py
@@ -235,7 +235,7 @@
             server_id=self.server_id
             )
 
-    def test_delete_server(self, bytes_body=False):
+    def test_delete_server(self):
         self.check_service_client_function(
             self.client.delete_server,
             'tempest.lib.common.rest_client.RestClient.delete',
@@ -288,6 +288,7 @@
             self.client.list_addresses_by_network,
             'tempest.lib.common.rest_client.RestClient.get',
             self.FAKE_ADDRESS['addresses'],
+            bytes_body,
             server_id=self.server_id,
             network_id=self.network_id
             )
@@ -303,6 +304,7 @@
             self.client.action,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             server_id=self.server_id,
             action_name='fake-action-name',
             schema={'status_code': 200}
@@ -319,6 +321,7 @@
             self.client.create_backup,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id,
             backup_type='fake-backup',
@@ -339,6 +342,7 @@
             self.client.evacuate_server,
             'tempest.lib.common.rest_client.RestClient.post',
             self.FAKE_SERVER_PASSWORD,
+            bytes_body,
             **kwargs)
 
     def test_change_password_with_str_body(self):
@@ -352,6 +356,7 @@
             self.client.change_password,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id,
             adminPass='fake-admin-pass'
@@ -368,16 +373,11 @@
             self.client.show_password,
             'tempest.lib.common.rest_client.RestClient.get',
             {'password': 'fake-password'},
+            bytes_body,
             server_id=self.server_id
             )
 
-    def test_delete_password_with_str_body(self):
-        self._test_delete_password()
-
-    def test_delete_password_with_bytes_body(self):
-        self._test_delete_password(True)
-
-    def _test_delete_password(self, bytes_body=False):
+    def test_delete_password(self):
         self.check_service_client_function(
             self.client.delete_password,
             'tempest.lib.common.rest_client.RestClient.delete',
@@ -386,13 +386,7 @@
             server_id=self.server_id
             )
 
-    def test_reboot_server_with_str_body(self):
-        self._test_reboot_server()
-
-    def test_reboot_server_with_bytes_body(self):
-        self._test_reboot_server(True)
-
-    def _test_reboot_server(self, bytes_body=False):
+    def test_reboot_server(self):
         self.check_service_client_function(
             self.client.reboot_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -413,18 +407,13 @@
             self.client.rebuild_server,
             'tempest.lib.common.rest_client.RestClient.post',
             self.FAKE_REBUILD_SERVER,
+            bytes_body,
             status=202,
             server_id=self.server_id,
             image_ref='fake-image-ref'
             )
 
-    def test_resize_server_with_str_body(self):
-        self._test_resize_server()
-
-    def test_resize_server_with_bytes_body(self):
-        self._test_resize_server(True)
-
-    def _test_resize_server(self, bytes_body=False):
+    def test_resize_server(self):
         self.check_service_client_function(
             self.client.resize_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -434,13 +423,7 @@
             flavor_ref='fake-flavor-ref'
             )
 
-    def test_confirm_resize_server_with_str_body(self):
-        self._test_confirm_resize_server()
-
-    def test_confirm_resize_server_with_bytes_body(self):
-        self._test_confirm_resize_server(True)
-
-    def _test_confirm_resize_server(self, bytes_body=False):
+    def test_confirm_resize_server(self):
         self.check_service_client_function(
             self.client.confirm_resize_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -449,13 +432,7 @@
             server_id=self.server_id
             )
 
-    def test_revert_resize_server_with_str_body(self):
-        self._test_revert_resize()
-
-    def test_revert_resize_server_with_bytes_body(self):
-        self._test_revert_resize(True)
-
-    def _test_revert_resize(self, bytes_body=False):
+    def test_revert_resize(self):
         self.check_service_client_function(
             self.client.revert_resize_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -475,6 +452,7 @@
             self.client.list_server_metadata,
             'tempest.lib.common.rest_client.RestClient.get',
             {'metadata': {'fake-key': 'fake-meta-data'}},
+            bytes_body,
             server_id=self.server_id
             )
 
@@ -489,6 +467,7 @@
             self.client.set_server_metadata,
             'tempest.lib.common.rest_client.RestClient.put',
             {'metadata': {'fake-key': 'fake-meta-data'}},
+            bytes_body,
             server_id=self.server_id,
             meta='fake-meta'
             )
@@ -504,6 +483,7 @@
             self.client.update_server_metadata,
             'tempest.lib.common.rest_client.RestClient.post',
             {'metadata': {'fake-key': 'fake-meta-data'}},
+            bytes_body,
             server_id=self.server_id,
             meta='fake-meta'
             )
@@ -519,6 +499,7 @@
             self.client.show_server_metadata_item,
             'tempest.lib.common.rest_client.RestClient.get',
             {'meta': {'fake-key': 'fake-meta-data'}},
+            bytes_body,
             server_id=self.server_id,
             key='fake-key'
             )
@@ -534,18 +515,13 @@
             self.client.set_server_metadata_item,
             'tempest.lib.common.rest_client.RestClient.put',
             {'meta': {'fake-key': 'fake-meta-data'}},
+            bytes_body,
             server_id=self.server_id,
             key='fake-key',
             meta='fake-meta'
             )
 
-    def test_delete_server_metadata_item_with_str_body(self):
-        self._test_delete_server_metadata()
-
-    def test_delete_server_metadata_item_with_bytes_body(self):
-        self._test_delete_server_metadata(True)
-
-    def _test_delete_server_metadata(self, bytes_body=False):
+    def test_delete_server_metadata(self):
         self.check_service_client_function(
             self.client.delete_server_metadata_item,
             'tempest.lib.common.rest_client.RestClient.delete',
@@ -555,13 +531,7 @@
             key='fake-key'
             )
 
-    def test_stop_server_with_str_body(self):
-        self._test_stop_server()
-
-    def test_stop_server_with_bytes_body(self):
-        self._test_stop_server(True)
-
-    def _test_stop_server(self, bytes_body=False):
+    def test_stop_server(self):
         self.check_service_client_function(
             self.client.stop_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -570,13 +540,7 @@
             server_id=self.server_id
             )
 
-    def test_start_server_with_str_body(self):
-        self._test_start_server()
-
-    def test_start_server_with_bytes_body(self):
-        self._test_start_server(True)
-
-    def _test_start_server(self, bytes_body=False):
+    def test_start_server(self):
         self.check_service_client_function(
             self.client.start_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -596,6 +560,7 @@
             self.client.attach_volume,
             'tempest.lib.common.rest_client.RestClient.post',
             {'volumeAttachment': self.FAKE_COMMON_VOLUME},
+            bytes_body,
             server_id=self.server_id
             )
 
@@ -621,6 +586,7 @@
             self.client.detach_volume,
             'tempest.lib.common.rest_client.RestClient.delete',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id,
             volume_id=self.FAKE_COMMON_VOLUME['volumeId']
@@ -637,6 +603,7 @@
             self.client.show_volume_attachment,
             'tempest.lib.common.rest_client.RestClient.get',
             {'volumeAttachment': self.FAKE_COMMON_VOLUME},
+            bytes_body,
             server_id=self.server_id,
             volume_id=self.FAKE_COMMON_VOLUME['volumeId']
             )
@@ -652,6 +619,7 @@
             self.client.list_volume_attachments,
             'tempest.lib.common.rest_client.RestClient.get',
             {'volumeAttachments': [self.FAKE_COMMON_VOLUME]},
+            bytes_body,
             server_id=self.server_id
             )
 
@@ -666,18 +634,13 @@
             self.client.add_security_group,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id,
             name='fake-name'
             )
 
-    def test_remove_security_group_with_str_body(self):
-        self._test_remove_security_group()
-
-    def test_remove_security_group_with_bytes_body(self):
-        self._test_remove_security_group(True)
-
-    def _test_remove_security_group(self, bytes_body=False):
+    def test_remove_security_group(self):
         self.check_service_client_function(
             self.client.remove_security_group,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -698,6 +661,7 @@
             self.client.live_migrate_server,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id
             )
@@ -713,17 +677,12 @@
             self.client.migrate_server,
             'tempest.lib.common.rest_client.RestClient.post',
             {},
+            bytes_body,
             status=202,
             server_id=self.server_id
             )
 
-    def test_lock_server_with_str_body(self):
-        self._test_lock_server()
-
-    def test_lock_server_with_bytes_body(self):
-        self._test_lock_server(True)
-
-    def _test_lock_server(self, bytes_body=False):
+    def test_lock_server(self):
         self.check_service_client_function(
             self.client.lock_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -732,13 +691,7 @@
             server_id=self.server_id
             )
 
-    def test_unlock_server_with_str_body(self):
-        self._test_unlock_server()
-
-    def test_unlock_server_with_bytes_body(self):
-        self._test_unlock_server(True)
-
-    def _test_unlock_server(self, bytes_body=False):
+    def test_unlock_server(self):
         self.check_service_client_function(
             self.client.unlock_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -747,13 +700,7 @@
             server_id=self.server_id
             )
 
-    def test_suspend_server_with_str_body(self):
-        self._test_suspend_server()
-
-    def test_suspend_server_with_bytes_body(self):
-        self._test_suspend_server(True)
-
-    def _test_suspend_server(self, bytes_body=False):
+    def test_suspend_server(self):
         self.check_service_client_function(
             self.client.suspend_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -762,13 +709,7 @@
             server_id=self.server_id
             )
 
-    def test_resume_server_with_str_body(self):
-        self._test_resume_server()
-
-    def test_resume_server_with_bytes_body(self):
-        self._test_resume_server(True)
-
-    def _test_resume_server(self, bytes_body=False):
+    def test_resume_server(self):
         self.check_service_client_function(
             self.client.resume_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -777,13 +718,7 @@
             server_id=self.server_id
             )
 
-    def test_pause_server_with_str_body(self):
-        self._test_pause_server()
-
-    def test_pause_server_with_bytes_body(self):
-        self._test_pause_server(True)
-
-    def _test_pause_server(self, bytes_body=False):
+    def test_pause_server(self):
         self.check_service_client_function(
             self.client.pause_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -792,13 +727,7 @@
             server_id=self.server_id
             )
 
-    def test_unpause_server_with_str_body(self):
-        self._test_unpause_server()
-
-    def test_unpause_server_with_bytes_body(self):
-        self._test_unpause_server(True)
-
-    def _test_unpause_server(self, bytes_body=False):
+    def test_unpause_server(self):
         self.check_service_client_function(
             self.client.unpause_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -807,13 +736,7 @@
             server_id=self.server_id
             )
 
-    def test_reset_state_with_str_body(self):
-        self._test_reset_state()
-
-    def test_reset_state_with_bytes_body(self):
-        self._test_reset_state(True)
-
-    def _test_reset_state(self, bytes_body=False):
+    def test_reset_state(self):
         self.check_service_client_function(
             self.client.reset_state,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -823,13 +746,7 @@
             state='fake-state'
             )
 
-    def test_shelve_server_with_str_body(self):
-        self._test_shelve_server()
-
-    def test_shelve_server_with_bytes_body(self):
-        self._test_shelve_server(True)
-
-    def _test_shelve_server(self, bytes_body=False):
+    def test_shelve_server(self):
         self.check_service_client_function(
             self.client.shelve_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -838,13 +755,7 @@
             server_id=self.server_id
             )
 
-    def test_unshelve_server_with_str_body(self):
-        self._test_unshelve_server()
-
-    def test_unshelve_server_with_bytes_body(self):
-        self._test_unshelve_server(True)
-
-    def _test_unshelve_server(self, bytes_body=False):
+    def test_unshelve_server(self):
         self.check_service_client_function(
             self.client.unshelve_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -853,13 +764,7 @@
             server_id=self.server_id
             )
 
-    def test_shelve_offload_server_with_str_body(self):
-        self._test_shelve_offload_server()
-
-    def test_shelve_offload_server_with_bytes_body(self):
-        self._test_shelve_offload_server(True)
-
-    def _test_shelve_offload_server(self, bytes_body=False):
+    def test_shelve_offload_server(self):
         self.check_service_client_function(
             self.client.shelve_offload_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -879,6 +784,7 @@
             self.client.get_console_output,
             'tempest.lib.common.rest_client.RestClient.post',
             {'output': 'fake-output'},
+            bytes_body,
             server_id=self.server_id,
             length='fake-length'
             )
@@ -894,6 +800,7 @@
             self.client.list_virtual_interfaces,
             'tempest.lib.common.rest_client.RestClient.get',
             {'virtual_interfaces': [self.FAKE_VIRTUAL_INTERFACES]},
+            bytes_body,
             server_id=self.server_id
             )
 
@@ -908,16 +815,11 @@
             self.client.rescue_server,
             'tempest.lib.common.rest_client.RestClient.post',
             {'adminPass': 'fake-admin-pass'},
+            bytes_body,
             server_id=self.server_id
             )
 
-    def test_unrescue_server_with_str_body(self):
-        self._test_unrescue_server()
-
-    def test_unrescue_server_with_bytes_body(self):
-        self._test_unrescue_server(True)
-
-    def _test_unrescue_server(self, bytes_body=False):
+    def test_unrescue_server(self):
         self.check_service_client_function(
             self.client.unrescue_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -937,6 +839,7 @@
             self.client.show_server_diagnostics,
             'tempest.lib.common.rest_client.RestClient.get',
             self.FAKE_SERVER_DIAGNOSTICS,
+            bytes_body,
             status=200,
             server_id=self.server_id
             )
@@ -952,6 +855,7 @@
             self.client.list_instance_actions,
             'tempest.lib.common.rest_client.RestClient.get',
             {'instanceActions': [self.FAKE_INSTANCE_ACTIONS]},
+            bytes_body,
             server_id=self.server_id
             )
 
@@ -966,17 +870,12 @@
             self.client.show_instance_action,
             'tempest.lib.common.rest_client.RestClient.get',
             {'instanceAction': self.FAKE_INSTANCE_WITH_EVENTS},
+            bytes_body,
             server_id=self.server_id,
             request_id='fake-request-id'
             )
 
-    def test_force_delete_server_with_str_body(self):
-        self._test_force_delete_server()
-
-    def test_force_delete_server_with_bytes_body(self):
-        self._test_force_delete_server(True)
-
-    def _test_force_delete_server(self, bytes_body=False):
+    def test_force_delete_server(self):
         self.check_service_client_function(
             self.client.force_delete_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -985,13 +884,7 @@
             server_id=self.server_id
             )
 
-    def test_restore_soft_deleted_server_with_str_body(self):
-        self._test_restore_soft_deleted_server()
-
-    def test_restore_soft_deleted_server_with_bytes_body(self):
-        self._test_restore_soft_deleted_server(True)
-
-    def _test_restore_soft_deleted_server(self, bytes_body=False):
+    def test_restore_soft_deleted_server(self):
         self.check_service_client_function(
             self.client.restore_soft_deleted_server,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -1000,13 +893,7 @@
             server_id=self.server_id
             )
 
-    def test_reset_network_with_str_body(self):
-        self._test_reset_network()
-
-    def test_reset_network_with_bytes_body(self):
-        self._test_reset_network(True)
-
-    def _test_reset_network(self, bytes_body=False):
+    def test_reset_network(self):
         self.check_service_client_function(
             self.client.reset_network,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -1015,13 +902,7 @@
             server_id=self.server_id
             )
 
-    def test_inject_network_info_with_str_body(self):
-        self._test_inject_network_info()
-
-    def test_inject_network_info_with_bytes_body(self):
-        self._test_inject_network_info(True)
-
-    def _test_inject_network_info(self, bytes_body=False):
+    def test_inject_network_info(self):
         self.check_service_client_function(
             self.client.inject_network_info,
             'tempest.lib.common.rest_client.RestClient.post',
@@ -1041,6 +922,7 @@
             self.client.get_vnc_console,
             'tempest.lib.common.rest_client.RestClient.post',
             {'console': self.FAKE_VNC_CONSOLE},
+            bytes_body,
             server_id=self.server_id,
             type='fake-console-type'
             )
@@ -1056,7 +938,8 @@
             self.client.list_security_groups_by_server,
             'tempest.lib.common.rest_client.RestClient.get',
             {'security_groups': self.FAKE_SECURITY_GROUPS},
-            server_id=self.server_id,
+            bytes_body,
+            server_id=self.server_id
             )
 
     @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
@@ -1151,15 +1034,7 @@
 
     @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
                        new_callable=mock.PropertyMock(return_value='2.26'))
-    def test_delete_tag_str_body(self, _):
-        self._test_delete_tag()
-
-    @mock.patch.object(base_compute_client, 'COMPUTE_MICROVERSION',
-                       new_callable=mock.PropertyMock(return_value='2.26'))
-    def test_delete_tag_byte_body(self, _):
-        self._test_delete_tag(bytes_body=True)
-
-    def _test_delete_tag(self, bytes_body=False):
+    def test_delete_tag(self, _):
         self.check_service_client_function(
             self.client.delete_tag,
             'tempest.lib.common.rest_client.RestClient.delete',
@@ -1167,7 +1042,7 @@
             server_id=self.server_id,
             tag=self.FAKE_TAGS[0],
             status=204,
-            to_utf=bytes_body)
+            )
 
 
 class TestServersClientMinV26(base.BaseServiceTest):
diff --git a/tempest/tests/lib/services/network/test_base_network_client.py b/tempest/tests/lib/services/network/test_base_network_client.py
new file mode 100644
index 0000000..e121cec
--- /dev/null
+++ b/tempest/tests/lib/services/network/test_base_network_client.py
@@ -0,0 +1,96 @@
+# Copyright 2017 AT&T 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 mock
+
+from tempest.lib.services.network import base as base_network_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib import fake_http
+from tempest.tests.lib.services import base
+
+
+class TestBaseNetworkClient(base.BaseServiceTest):
+
+    def setUp(self):
+        super(TestBaseNetworkClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = base_network_client.BaseNetworkClient(
+            fake_auth, 'compute', 'regionOne')
+
+        self.mock_expected_success = mock.patch.object(
+            self.client, 'expected_success').start()
+
+    def _assert_empty(self, resp):
+        self.assertEqual([], list(resp.keys()))
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient.post')
+    def test_create_resource(self, mock_post):
+        response = fake_http.fake_http_response(headers=None, status=201)
+        mock_post.return_value = response, '{"baz": "qux"}'
+
+        post_data = {'foo': 'bar'}
+        resp = self.client.create_resource('/fake_url', post_data)
+
+        self.assertEqual({'status': '201'}, resp.response)
+        self.assertEqual("qux", resp["baz"])
+        mock_post.assert_called_once_with('v2.0/fake_url', '{"foo": "bar"}')
+        self.mock_expected_success.assert_called_once_with(
+            201, 201)
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient.post')
+    def test_create_resource_expect_different_values(self, mock_post):
+        response = fake_http.fake_http_response(headers=None, status=200)
+        mock_post.return_value = response, '{}'
+
+        post_data = {'foo': 'bar'}
+        resp = self.client.create_resource('/fake_url', post_data,
+                                           expect_response_code=200,
+                                           expect_empty_body=True)
+
+        self.assertEqual({'status': '200'}, resp.response)
+        self._assert_empty(resp)
+        mock_post.assert_called_once_with('v2.0/fake_url', '{"foo": "bar"}')
+        self.mock_expected_success.assert_called_once_with(
+            200, 200)
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient.put')
+    def test_update_resource(self, mock_put):
+        response = fake_http.fake_http_response(headers=None, status=200)
+        mock_put.return_value = response, '{"baz": "qux"}'
+
+        put_data = {'foo': 'bar'}
+        resp = self.client.update_resource('/fake_url', put_data)
+
+        self.assertEqual({'status': '200'}, resp.response)
+        self.assertEqual("qux", resp["baz"])
+        mock_put.assert_called_once_with('v2.0/fake_url', '{"foo": "bar"}')
+        self.mock_expected_success.assert_called_once_with(
+            200, 200)
+
+    @mock.patch('tempest.lib.common.rest_client.RestClient.put')
+    def test_update_resource_expect_different_values(self, mock_put):
+        response = fake_http.fake_http_response(headers=None, status=201)
+        mock_put.return_value = response, '{}'
+
+        put_data = {'foo': 'bar'}
+        resp = self.client.update_resource('/fake_url', put_data,
+                                           expect_response_code=201,
+                                           expect_empty_body=True)
+
+        self.assertEqual({'status': '201'}, resp.response)
+        self._assert_empty(resp)
+        mock_put.assert_called_once_with('v2.0/fake_url', '{"foo": "bar"}')
+        self.mock_expected_success.assert_called_once_with(
+            201, 201)
diff --git a/tempest/tests/lib/services/network/test_quotas_client.py b/tempest/tests/lib/services/network/test_quotas_client.py
new file mode 100644
index 0000000..e76bc9c
--- /dev/null
+++ b/tempest/tests/lib/services/network/test_quotas_client.py
@@ -0,0 +1,99 @@
+# Copyright 2017 AT&T 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.services.network import quotas_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestQuotasClient(base.BaseServiceTest):
+
+    FAKE_QUOTAS = {
+        "quotas": [
+            {
+                "floatingip": 50,
+                "network": 15,
+                "port": 50,
+                "project_id": "bab7d5c60cd041a0a36f7c4b6e1dd978",
+                "rbac_policy": -1,
+                "router": 10,
+                "security_group": 10,
+                "security_group_rule": 100,
+                "subnet": 10,
+                "subnetpool": -1,
+                "tenant_id": "bab7d5c60cd041a0a36f7c4b6e1dd978"
+            }
+        ]
+    }
+
+    FAKE_QUOTA_TENANT_ID = "bab7d5c60cd041a0a36f7c4b6e1dd978"
+
+    def setUp(self):
+        super(TestQuotasClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.quotas_client = quotas_client.QuotasClient(
+            fake_auth, "network", "regionOne")
+
+    def _test_list_quotas(self, bytes_body=False):
+        self.check_service_client_function(
+            self.quotas_client.list_quotas,
+            "tempest.lib.common.rest_client.RestClient.get",
+            self.FAKE_QUOTAS,
+            bytes_body,
+            200)
+
+    def _test_show_quotas(self, bytes_body=False):
+        self.check_service_client_function(
+            self.quotas_client.show_quotas,
+            "tempest.lib.common.rest_client.RestClient.get",
+            {"quota": self.FAKE_QUOTAS["quotas"][0]},
+            bytes_body,
+            200,
+            tenant_id=self.FAKE_QUOTA_TENANT_ID)
+
+    def _test_update_quotas(self, bytes_body=False):
+        self.check_service_client_function(
+            self.quotas_client.update_quotas,
+            "tempest.lib.common.rest_client.RestClient.put",
+            {"quota": self.FAKE_QUOTAS["quotas"][0]},
+            bytes_body,
+            200,
+            tenant_id=self.FAKE_QUOTA_TENANT_ID)
+
+    def test_reset_quotas(self):
+        self.check_service_client_function(
+            self.quotas_client.reset_quotas,
+            "tempest.lib.common.rest_client.RestClient.delete",
+            {},
+            status=204,
+            tenant_id=self.FAKE_QUOTA_TENANT_ID)
+
+    def test_list_quotas_with_str_body(self):
+        self._test_list_quotas()
+
+    def test_list_quotas_with_bytes_body(self):
+        self._test_list_quotas(bytes_body=True)
+
+    def test_show_quotas_with_str_body(self):
+        self._test_show_quotas()
+
+    def test_show_quotas_with_bytes_body(self):
+        self._test_show_quotas(bytes_body=True)
+
+    def test_update_quotas_with_str_body(self):
+        self._test_update_quotas()
+
+    def test_update_quotas_with_bytes_body(self):
+        self._test_update_quotas(bytes_body=True)
diff --git a/tempest/tests/lib/services/network/test_security_group_rules_client.py b/tempest/tests/lib/services/network/test_security_group_rules_client.py
index ebffcbe..b9c17a1 100644
--- a/tempest/tests/lib/services/network/test_security_group_rules_client.py
+++ b/tempest/tests/lib/services/network/test_security_group_rules_client.py
@@ -15,8 +15,10 @@
 
 import copy
 
+import mock
 from oslo_serialization import jsonutils as json
 
+from tempest.lib.services.network import base as network_base
 from tempest.lib.services.network import security_group_rules_client
 from tempest.tests.lib import fake_auth_provider
 from tempest.tests.lib.services import base
@@ -80,16 +82,22 @@
         kwargs = {'direction': 'egress',
                   'security_group_id': '85cc3048-abc3-43cc-89b3-377341426ac5',
                   'remote_ip_prefix': None}
+        payload = json.dumps({"security_group_rule": kwargs}, sort_keys=True)
+        json_dumps = json.dumps
 
-        self.check_service_client_function(
-            self.client.create_security_group_rule,
-            'tempest.lib.common.rest_client.RestClient.post',
-            self.FAKE_SECURITY_GROUP_RULE,
-            bytes_body,
-            status=201,
-            mock_args=['v2.0/security-group-rules',
-                       json.dumps({"security_group_rule": kwargs})],
-            **kwargs)
+        # NOTE: Use sort_keys for json.dumps so that the expected and actual
+        # payloads are guaranteed to be identical for mock_args assert check.
+        with mock.patch.object(network_base.json, 'dumps') as mock_dumps:
+            mock_dumps.side_effect = lambda d: json_dumps(d, sort_keys=True)
+
+            self.check_service_client_function(
+                self.client.create_security_group_rule,
+                'tempest.lib.common.rest_client.RestClient.post',
+                self.FAKE_SECURITY_GROUP_RULE,
+                bytes_body,
+                status=201,
+                mock_args=['v2.0/security-group-rules', payload],
+                **kwargs)
 
     def _test_show_security_group_rule(self, bytes_body=False):
         self.check_service_client_function(
diff --git a/tempest/tests/lib/services/network/test_security_groups_client.py b/tempest/tests/lib/services/network/test_security_groups_client.py
index d066378..f96805f 100644
--- a/tempest/tests/lib/services/network/test_security_groups_client.py
+++ b/tempest/tests/lib/services/network/test_security_groups_client.py
@@ -15,8 +15,10 @@
 
 import copy
 
+import mock
 from oslo_serialization import jsonutils as json
 
+from tempest.lib.services.network import base as network_base
 from tempest.lib.services.network import security_groups_client
 from tempest.tests.lib import fake_auth_provider
 from tempest.tests.lib.services import base
@@ -89,15 +91,22 @@
 
     def _test_create_security_group(self, bytes_body=False):
         kwargs = {'name': 'fake-security-group-name'}
-        self.check_service_client_function(
-            self.client.create_security_group,
-            'tempest.lib.common.rest_client.RestClient.post',
-            self.FAKE_SECURITY_GROUP,
-            bytes_body,
-            status=201,
-            mock_args=['v2.0/security-groups',
-                       json.dumps({"security_group": kwargs})],
-            **kwargs)
+        payload = json.dumps({"security_group": kwargs}, sort_keys=True)
+        json_dumps = json.dumps
+
+        # NOTE: Use sort_keys for json.dumps so that the expected and actual
+        # payloads are guaranteed to be identical for mock_args assert check.
+        with mock.patch.object(network_base.json, 'dumps') as mock_dumps:
+            mock_dumps.side_effect = lambda d: json_dumps(d, sort_keys=True)
+
+            self.check_service_client_function(
+                self.client.create_security_group,
+                'tempest.lib.common.rest_client.RestClient.post',
+                self.FAKE_SECURITY_GROUP,
+                bytes_body,
+                status=201,
+                mock_args=['v2.0/security-groups', payload],
+                **kwargs)
 
     def _test_show_security_group(self, bytes_body=False):
         self.check_service_client_function(
@@ -113,15 +122,23 @@
         resp_body = copy.deepcopy(self.FAKE_SECURITY_GROUP)
         resp_body["security_group"]["name"] = 'updated-security-group-name'
 
-        self.check_service_client_function(
-            self.client.update_security_group,
-            'tempest.lib.common.rest_client.RestClient.put',
-            resp_body,
-            bytes_body,
-            security_group_id=self.FAKE_SEC_GROUP_ID,
-            mock_args=['v2.0/security-groups/%s' % self.FAKE_SEC_GROUP_ID,
-                       json.dumps({'security_group': kwargs})],
-            **kwargs)
+        payload = json.dumps({'security_group': kwargs}, sort_keys=True)
+        json_dumps = json.dumps
+
+        # NOTE: Use sort_keys for json.dumps so that the expected and actual
+        # payloads are guaranteed to be identical for mock_args assert check.
+        with mock.patch.object(network_base.json, 'dumps') as mock_dumps:
+            mock_dumps.side_effect = lambda d: json_dumps(d, sort_keys=True)
+
+            self.check_service_client_function(
+                self.client.update_security_group,
+                'tempest.lib.common.rest_client.RestClient.put',
+                resp_body,
+                bytes_body,
+                security_group_id=self.FAKE_SEC_GROUP_ID,
+                mock_args=['v2.0/security-groups/%s' % self.FAKE_SEC_GROUP_ID,
+                           payload],
+                **kwargs)
 
     def test_list_security_groups_with_str_body(self):
         self._test_list_security_groups()
diff --git a/tempest/tests/lib/services/volume/v3/test_group_types_client.py b/tempest/tests/lib/services/volume/v3/test_group_types_client.py
new file mode 100644
index 0000000..95498c7
--- /dev/null
+++ b/tempest/tests/lib/services/volume/v3/test_group_types_client.py
@@ -0,0 +1,57 @@
+# Copyright (C) 2017 Dell Inc. or its subsidiaries.
+#
+# 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.services.volume.v3 import group_types_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestGroupTypesClient(base.BaseServiceTest):
+    FAKE_CREATE_GROUP_TYPE = {
+        "group_type": {
+            "name": "group-type-001",
+            "description": "Test group type 1",
+            "group_specs": {},
+            "is_public": True,
+        }
+    }
+
+    def setUp(self):
+        super(TestGroupTypesClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = group_types_client.GroupTypesClient(fake_auth,
+                                                          'volume',
+                                                          'regionOne')
+
+    def _test_create_group_type(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.create_group_type,
+            'tempest.lib.common.rest_client.RestClient.post',
+            self.FAKE_CREATE_GROUP_TYPE,
+            bytes_body,
+            status=202)
+
+    def test_create_group_type_with_str_body(self):
+        self._test_create_group_type()
+
+    def test_create_group_type_with_bytes_body(self):
+        self._test_create_group_type(bytes_body=True)
+
+    def test_delete_group_type(self):
+        self.check_service_client_function(
+            self.client.delete_group_type,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            group_type_id='0e58433f-d108-4bf3-a22c-34e6b71ef86b',
+            status=202)
diff --git a/tempest/tests/lib/services/volume/v3/test_groups_client.py b/tempest/tests/lib/services/volume/v3/test_groups_client.py
new file mode 100644
index 0000000..00db5b4
--- /dev/null
+++ b/tempest/tests/lib/services/volume/v3/test_groups_client.py
@@ -0,0 +1,136 @@
+# Copyright (C) 2017 Dell Inc. or its subsidiaries.
+#
+# 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.services.volume.v3 import groups_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestGroupsClient(base.BaseServiceTest):
+    FAKE_CREATE_GROUP = {
+        "group": {
+            "name": "group-001",
+            "description": "Test group 1",
+            "group_type": "0e58433f-d108-4bf3-a22c-34e6b71ef86b",
+            "volume_types": ["2103099d-7cc3-4e52-a2f1-23a5284416f3"],
+            "availability_zone": "az1",
+        }
+    }
+
+    FAKE_INFO_GROUP = {
+        "group": {
+            "id": "0e701ab8-1bec-4b9f-b026-a7ba4af13578",
+            "name": "group-001",
+            "description": "Test group 1",
+            "group_type": "0e58433f-d108-4bf3-a22c-34e6b71ef86b",
+            "volume_types": ["2103099d-7cc3-4e52-a2f1-23a5284416f3"],
+            "status": "available",
+            "availability_zone": "az1",
+            "created_at": "20127-06-20T03:50:07Z"
+        }
+    }
+
+    FAKE_LIST_GROUPS = {
+        "groups": [
+            {
+                "id": "0e701ab8-1bec-4b9f-b026-a7ba4af13578",
+                "name": "group-001",
+                "description": "Test group 1",
+                "group_type": "0e58433f-d108-4bf3-a22c-34e6b71ef86b",
+                "volume_types": ["2103099d-7cc3-4e52-a2f1-23a5284416f3"],
+                "status": "available",
+                "availability_zone": "az1",
+                "created_at": "2017-06-20T03:50:07Z",
+            },
+            {
+                "id": "e479997c-650b-40a4-9dfe-77655818b0d2",
+                "name": "group-002",
+                "description": "Test group 2",
+                "group_snapshot_id": "79c9afdb-7e46-4d71-9249-1f022886963c",
+                "group_type": "0e58433f-d108-4bf3-a22c-34e6b71ef86b",
+                "volume_types": ["2103099d-7cc3-4e52-a2f1-23a5284416f3"],
+                "status": "available",
+                "availability_zone": "az1",
+                "created_at": "2017-06-19T01:52:47Z",
+            },
+            {
+                "id": "c5c4769e-213c-40a6-a568-8e797bb691d4",
+                "name": "group-003",
+                "description": "Test group 3",
+                "source_group_id": "e92f9dc7-0b20-492d-8ab2-3ad8fdac270e",
+                "group_type": "0e58433f-d108-4bf3-a22c-34e6b71ef86b",
+                "volume_types": ["2103099d-7cc3-4e52-a2f1-23a5284416f3"],
+                "status": "available",
+                "availability_zone": "az1",
+                "created_at": "2017-06-18T06:34:32Z",
+            }
+        ]
+    }
+
+    def setUp(self):
+        super(TestGroupsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = groups_client.GroupsClient(fake_auth,
+                                                 'volume',
+                                                 'regionOne')
+
+    def _test_create_group(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.create_group,
+            'tempest.lib.common.rest_client.RestClient.post',
+            self.FAKE_CREATE_GROUP,
+            bytes_body,
+            status=202)
+
+    def _test_show_group(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.show_group,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_INFO_GROUP,
+            bytes_body,
+            group_id="3fbbcccf-d058-4502-8844-6feeffdf4cb5")
+
+    def _test_list_groups(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_groups,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_LIST_GROUPS,
+            bytes_body,
+            detail=True)
+
+    def test_create_group_with_str_body(self):
+        self._test_create_group()
+
+    def test_create_group_with_bytes_body(self):
+        self._test_create_group(bytes_body=True)
+
+    def test_show_group_with_str_body(self):
+        self._test_show_group()
+
+    def test_show_group_with_bytes_body(self):
+        self._test_show_group(bytes_body=True)
+
+    def test_list_groups_with_str_body(self):
+        self._test_list_groups()
+
+    def test_list_groups_with_bytes_body(self):
+        self._test_list_groups(bytes_body=True)
+
+    def test_delete_group(self):
+        self.check_service_client_function(
+            self.client.delete_group,
+            'tempest.lib.common.rest_client.RestClient.post',
+            {},
+            group_id='0e701ab8-1bec-4b9f-b026-a7ba4af13578',
+            status=202)