diff --git a/etc/tempest.conf.sample b/etc/tempest.conf.sample
index fe4959b..2443399 100644
--- a/etc/tempest.conf.sample
+++ b/etc/tempest.conf.sample
@@ -825,4 +825,7 @@
 # Is the v1 volume API enabled (boolean value)
 #api_v1=true
 
+# Is the v2 volume API enabled (boolean value)
+#api_v2=true
+
 
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index fd069e7..e6ddf1c 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -296,11 +296,8 @@
         cls.extensions_client = cls.os.extensions_v3_client
         cls.availability_zone_client = cls.os.availability_zone_v3_client
         cls.interfaces_client = cls.os.interfaces_v3_client
-        cls.instance_usages_audit_log_client = \
-            cls.os.instance_usages_audit_log_v3_client
         cls.hypervisor_client = cls.os.hypervisor_v3_client
         cls.keypairs_client = cls.os.keypairs_v3_client
-        cls.tenant_usages_client = cls.os.tenant_usages_v3_client
         cls.volumes_client = cls.os.volumes_client
         cls.certificates_client = cls.os.certificates_v3_client
         cls.keypairs_client = cls.os.keypairs_v3_client
@@ -372,13 +369,10 @@
 
         cls.os_adm = os_adm
         cls.servers_admin_client = cls.os_adm.servers_v3_client
-        cls.instance_usages_audit_log_admin_client = \
-            cls.os_adm.instance_usages_audit_log_v3_client
         cls.services_admin_client = cls.os_adm.services_v3_client
         cls.availability_zone_admin_client = \
             cls.os_adm.availability_zone_v3_client
         cls.hypervisor_admin_client = cls.os_adm.hypervisor_v3_client
-        cls.tenant_usages_admin_client = cls.os_adm.tenant_usages_v3_client
         cls.flavors_admin_client = cls.os_adm.flavors_v3_client
         cls.aggregates_admin_client = cls.os_adm.aggregates_v3_client
         cls.hosts_admin_client = cls.os_adm.hosts_v3_client
diff --git a/tempest/api/compute/v3/admin/test_instance_usage_audit_log.py b/tempest/api/compute/v3/admin/test_instance_usage_audit_log.py
deleted file mode 100644
index a86b7f5..0000000
--- a/tempest/api/compute/v3/admin/test_instance_usage_audit_log.py
+++ /dev/null
@@ -1,59 +0,0 @@
-# Copyright 2013 IBM 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 datetime
-import urllib
-
-from tempest.api.compute import base
-from tempest import test
-
-
-class InstanceUsageAuditLogV3Test(base.BaseV3ComputeAdminTest):
-
-    _interface = 'json'
-
-    @classmethod
-    def setUpClass(cls):
-        super(InstanceUsageAuditLogV3Test, cls).setUpClass()
-        cls.adm_client = cls.instance_usages_audit_log_admin_client
-
-    @test.attr(type='gate')
-    def test_list_instance_usage_audit_logs(self):
-        # list instance usage audit logs
-        resp, body = self.adm_client.list_instance_usage_audit_logs()
-        self.assertEqual(200, resp.status)
-        expected_items = ['total_errors', 'total_instances', 'log',
-                          'num_hosts_running', 'num_hosts_done',
-                          'num_hosts', 'hosts_not_run', 'overall_status',
-                          'period_ending', 'period_beginning',
-                          'num_hosts_not_run']
-        for item in expected_items:
-            self.assertIn(item, body)
-
-    @test.attr(type='gate')
-    def test_list_instance_usage_audit_logs_with_filter_before(self):
-        # Get instance usage audit log before specified time
-        ending_time = datetime.datetime(2012, 12, 24)
-        resp, body = self.adm_client.list_instance_usage_audit_logs(
-            urllib.quote(ending_time.strftime("%Y-%m-%d %H:%M:%S")))
-
-        self.assertEqual(200, resp.status)
-        expected_items = ['total_errors', 'total_instances', 'log',
-                          'num_hosts_running', 'num_hosts_done', 'num_hosts',
-                          'hosts_not_run', 'overall_status', 'period_ending',
-                          'period_beginning', 'num_hosts_not_run']
-        for item in expected_items:
-            self.assertIn(item, body)
-        self.assertEqual(body['period_ending'], "2012-12-23 23:00:00")
diff --git a/tempest/api/compute/v3/admin/test_instance_usage_audit_log_negative.py b/tempest/api/compute/v3/admin/test_instance_usage_audit_log_negative.py
deleted file mode 100644
index 0438825..0000000
--- a/tempest/api/compute/v3/admin/test_instance_usage_audit_log_negative.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# Copyright 2013 IBM Corporation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-from tempest.api.compute import base
-from tempest import exceptions
-from tempest import test
-
-
-class InstanceUsageLogNegativeV3Test(base.BaseV3ComputeAdminTest):
-
-    _interface = 'json'
-
-    @classmethod
-    def setUpClass(cls):
-        super(InstanceUsageLogNegativeV3Test, cls).setUpClass()
-        cls.adm_client = cls.instance_usages_audit_log_admin_client
-
-    @test.attr(type=['negative', 'gate'])
-    def test_instance_usage_audit_logs_with_nonadmin_user(self):
-        # the instance_usage_audit_logs API just can be accessed by admin user
-        self.assertRaises(exceptions.Unauthorized,
-                          self.instance_usages_audit_log_client.
-                          list_instance_usage_audit_logs)
-
-    @test.attr(type=['negative', 'gate'])
-    def test_get_instance_usage_audit_logs_with_invalid_time(self):
-        self.assertRaises(exceptions.BadRequest,
-                          self.adm_client.list_instance_usage_audit_logs,
-                          "invalid_time")
diff --git a/tempest/api/compute/v3/admin/test_simple_tenant_usage.py b/tempest/api/compute/v3/admin/test_simple_tenant_usage.py
deleted file mode 100644
index e16332f..0000000
--- a/tempest/api/compute/v3/admin/test_simple_tenant_usage.py
+++ /dev/null
@@ -1,85 +0,0 @@
-# Copyright 2013 NEC Corporation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import datetime
-
-from tempest.api.compute import base
-from tempest import test
-from tempest.test import attr
-import time
-
-
-class TenantUsagesV3Test(base.BaseV3ComputeAdminTest):
-
-    _interface = 'json'
-
-    @classmethod
-    def setUpClass(cls):
-        super(TenantUsagesV3Test, cls).setUpClass()
-        cls.adm_client = cls.tenant_usages_admin_client
-        cls.client = cls.tenant_usages_client
-        cls.identity_client = cls._get_identity_admin_client()
-
-        resp, tenants = cls.identity_client.list_tenants()
-        cls.tenant_id = [tnt['id'] for tnt in tenants if tnt['name'] ==
-                         cls.client.tenant_name][0]
-
-        # Create a server in the demo tenant
-        resp, server = cls.create_test_server(wait_until='ACTIVE')
-        time.sleep(2)
-
-        now = datetime.datetime.now()
-        cls.start = cls._parse_strtime(now - datetime.timedelta(days=1))
-        cls.end = cls._parse_strtime(now + datetime.timedelta(days=1))
-
-    @classmethod
-    def _parse_strtime(cls, at):
-        # Returns formatted datetime
-        return at.strftime('%Y-%m-%dT%H:%M:%S.%f')
-
-    @test.skip_because(bug='1265416')
-    @attr(type='gate')
-    def test_list_usage_all_tenants(self):
-        # Get usage for all tenants
-        params = {'start': self.start,
-                  'end': self.end,
-                  'detailed': int(bool(True))}
-        resp, tenant_usage = self.adm_client.list_tenant_usages(params)
-        self.assertEqual(200, resp.status)
-        self.assertEqual(len(tenant_usage), 8)
-
-    @test.skip_because(bug='1265416')
-    @attr(type='gate')
-    def test_get_usage_tenant(self):
-        # Get usage for a specific tenant
-        params = {'start': self.start,
-                  'end': self.end}
-        resp, tenant_usage = self.adm_client.get_tenant_usage(
-            self.tenant_id, params)
-
-        self.assertEqual(200, resp.status)
-        self.assertEqual(len(tenant_usage), 8)
-
-    @test.skip_because(bug='1265416')
-    @attr(type='gate')
-    def test_get_usage_tenant_with_non_admin_user(self):
-        # Get usage for a specific tenant with non admin user
-        params = {'start': self.start,
-                  'end': self.end}
-        resp, tenant_usage = self.client.get_tenant_usage(
-            self.tenant_id, params)
-
-        self.assertEqual(200, resp.status)
-        self.assertEqual(len(tenant_usage), 8)
diff --git a/tempest/api/compute/v3/admin/test_simple_tenant_usage_negative.py b/tempest/api/compute/v3/admin/test_simple_tenant_usage_negative.py
deleted file mode 100644
index 17849c5..0000000
--- a/tempest/api/compute/v3/admin/test_simple_tenant_usage_negative.py
+++ /dev/null
@@ -1,73 +0,0 @@
-# Copyright 2013 NEC Corporation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import datetime
-
-from tempest.api.compute import base
-from tempest import exceptions
-from tempest import test
-from tempest.test import attr
-
-
-class TenantUsagesNegativeV3Test(base.BaseV3ComputeAdminTest):
-
-    _interface = 'json'
-
-    @classmethod
-    def setUpClass(cls):
-        super(TenantUsagesNegativeV3Test, cls).setUpClass()
-        cls.adm_client = cls.os_adm.tenant_usages_client
-        cls.client = cls.os.tenant_usages_client
-        cls.identity_client = cls._get_identity_admin_client()
-        now = datetime.datetime.now()
-        cls.start = cls._parse_strtime(now - datetime.timedelta(days=1))
-        cls.end = cls._parse_strtime(now + datetime.timedelta(days=1))
-
-    @classmethod
-    def _parse_strtime(cls, at):
-        # Returns formatted datetime
-        return at.strftime('%Y-%m-%dT%H:%M:%S.%f')
-
-    @attr(type=['negative', 'gate'])
-    def test_get_usage_tenant_with_empty_tenant_id(self):
-        # Get usage for a specific tenant empty
-        params = {'start': self.start,
-                  'end': self.end}
-        self.assertRaises(exceptions.NotFound,
-                          self.adm_client.get_tenant_usage,
-                          '', params)
-
-    @test.skip_because(bug='1265416')
-    @attr(type=['negative', 'gate'])
-    def test_get_usage_tenant_with_invalid_date(self):
-        # Get usage for tenant with invalid date
-        params = {'start': self.end,
-                  'end': self.start}
-        resp, tenants = self.identity_client.list_tenants()
-        tenant_id = [tnt['id'] for tnt in tenants if tnt['name'] ==
-                     self.client.tenant_name][0]
-        self.assertRaises(exceptions.BadRequest,
-                          self.adm_client.get_tenant_usage,
-                          tenant_id, params)
-
-    @test.skip_because(bug='1265416')
-    @attr(type=['negative', 'gate'])
-    def test_list_usage_all_tenants_with_non_admin_user(self):
-        # Get usage for all tenants with non admin user
-        params = {'start': self.start,
-                  'end': self.end,
-                  'detailed': int(bool(True))}
-        self.assertRaises(exceptions.Unauthorized,
-                          self.client.list_tenant_usages, params)
diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index aee2a44..e12dedd 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -118,6 +118,18 @@
         self.assertEqual(self.name, network['name'])
 
     @attr(type='smoke')
+    def test_show_network_fields(self):
+        # Verifies showing some fields of a network works
+        field_list = [('fields', 'id'), ('fields', 'name'), ]
+        resp, body = self.client.show_network(self.network['id'],
+                                              field_list=field_list)
+        self.assertEqual('200', resp['status'])
+        network = body['network']
+        self.assertEqual(len(network), 2)
+        self.assertEqual(self.network['id'], network['id'])
+        self.assertEqual(self.name, network['name'])
+
+    @attr(type='smoke')
     def test_list_networks(self):
         # Verify the network exists in the list of all networks
         resp, body = self.client.list_networks()
@@ -155,6 +167,18 @@
         self.assertEqual(self.cidr, subnet['cidr'])
 
     @attr(type='smoke')
+    def test_show_subnet_fields(self):
+        # Verifies showing some fields of a subnet works
+        field_list = [('fields', 'id'), ('fields', 'cidr'), ]
+        resp, body = self.client.show_subnet(self.subnet['id'],
+                                             field_list=field_list)
+        self.assertEqual('200', resp['status'])
+        subnet = body['subnet']
+        self.assertEqual(len(subnet), 2)
+        self.assertEqual(self.subnet['id'], subnet['id'])
+        self.assertEqual(self.cidr, subnet['cidr'])
+
+    @attr(type='smoke')
     def test_list_subnets(self):
         # Verify the subnet exists in the list of all subnets
         resp, body = self.client.list_subnets()
@@ -189,12 +213,17 @@
             network_id=self.network['id'])
         self.assertEqual('201', resp['status'])
         port = body['port']
+        self.assertTrue(port['admin_state_up'])
         # Verification of port update
         new_port = "New_Port"
-        resp, body = self.client.update_port(port['id'], name=new_port)
+        resp, body = self.client.update_port(
+            port['id'],
+            name=new_port,
+            admin_state_up=False)
         self.assertEqual('200', resp['status'])
         updated_port = body['port']
         self.assertEqual(updated_port['name'], new_port)
+        self.assertFalse(updated_port['admin_state_up'])
         # Verification of port delete
         resp, body = self.client.delete_port(port['id'])
         self.assertEqual('204', resp['status'])
@@ -208,6 +237,17 @@
         self.assertEqual(self.port['id'], port['id'])
 
     @attr(type='smoke')
+    def test_show_port_fields(self):
+        # Verifies showing fields of a port works
+        field_list = [('fields', 'id'), ]
+        resp, body = self.client.show_port(self.port['id'],
+                                           field_list=field_list)
+        self.assertEqual('200', resp['status'])
+        port = body['port']
+        self.assertEqual(len(port), 1)
+        self.assertEqual(self.port['id'], port['id'])
+
+    @attr(type='smoke')
     def test_list_ports(self):
         # Verify the port exists in the list of all ports
         resp, body = self.client.list_ports()
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index de2b240..6b6f638 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -69,18 +69,6 @@
     # only in a single location in the source, and could be more general.
 
     @classmethod
-    def create_volume(cls, size=1, **kwargs):
-        """Wrapper utility that returns a test volume."""
-        vol_name = data_utils.rand_name('Volume')
-        resp, volume = cls.volumes_client.create_volume(size,
-                                                        display_name=vol_name,
-                                                        **kwargs)
-        assert 200 == resp.status
-        cls.volumes.append(volume)
-        cls.volumes_client.wait_for_volume_status(volume['id'], 'available')
-        return volume
-
-    @classmethod
     def clear_volumes(cls):
         for volume in cls.volumes:
             try:
@@ -120,6 +108,18 @@
         cls.volumes_client = cls.os.volumes_client
         cls.volumes_extension_client = cls.os.volumes_extension_client
 
+    @classmethod
+    def create_volume(cls, size=1, **kwargs):
+        """Wrapper utility that returns a test volume."""
+        vol_name = data_utils.rand_name('Volume')
+        resp, volume = cls.volumes_client.create_volume(size,
+                                                        display_name=vol_name,
+                                                        **kwargs)
+        assert 200 == resp.status
+        cls.volumes.append(volume)
+        cls.volumes_client.wait_for_volume_status(volume['id'], 'available')
+        return volume
+
 
 class BaseVolumeV1AdminTest(BaseVolumeV1Test):
     """Base test case class for all Volume Admin API tests."""
@@ -144,3 +144,25 @@
             cls.os_adm = clients.AdminManager(interface=cls._interface)
         cls.client = cls.os_adm.volume_types_client
         cls.hosts_client = cls.os_adm.volume_hosts_client
+
+
+class BaseVolumeV2Test(BaseVolumeTest):
+    @classmethod
+    def setUpClass(cls):
+        if not CONF.volume_feature_enabled.api_v2:
+            msg = "Volume API v2 not supported"
+            raise cls.skipException(msg)
+        super(BaseVolumeV2Test, cls).setUpClass()
+        cls.volumes_client = cls.os.volumes_v2_client
+
+    @classmethod
+    def create_volume(cls, size=1, **kwargs):
+        """Wrapper utility that returns a test volume."""
+        vol_name = data_utils.rand_name('Volume')
+        resp, volume = cls.volumes_client.create_volume(size,
+                                                        name=vol_name,
+                                                        **kwargs)
+        assert 202 == resp.status
+        cls.volumes.append(volume)
+        cls.volumes_client.wait_for_volume_status(volume['id'], 'available')
+        return volume
diff --git a/tempest/api/volume/test_volume_transfers.py b/tempest/api/volume/test_volume_transfers.py
index cf4e052..f4b2d4c 100644
--- a/tempest/api/volume/test_volume_transfers.py
+++ b/tempest/api/volume/test_volume_transfers.py
@@ -49,7 +49,7 @@
                                          interface=cls._interface)
         else:
             cls.os_alt = clients.AltManager()
-            alt_tenant_name = cls.os_alt.tenant_name
+            alt_tenant_name = cls.os_alt.credentials['tenant_name']
             identity_client = cls._get_identity_admin_client()
             _, tenants = identity_client.list_tenants()
             cls.alt_tenant_id = [tnt['id'] for tnt in tenants
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 487ada6..56915e6 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -12,10 +12,12 @@
 
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest.openstack.common import log as logging
 from tempest.test import attr
 
 LOG = logging.getLogger(__name__)
+CONF = config.CONF
 
 
 class VolumesSnapshotTest(base.BaseVolumeV1Test):
@@ -35,6 +37,11 @@
     def tearDownClass(cls):
         super(VolumesSnapshotTest, cls).tearDownClass()
 
+    def _detach(self, volume_id):
+        """Detach volume."""
+        self.volumes_client.detach_volume(volume_id)
+        self.volumes_client.wait_for_volume_status(volume_id, 'available')
+
     def _list_by_param_values_and_assert(self, params, with_detail=False):
         """
         Perform list or list_details action with given params
@@ -57,6 +64,32 @@
                 self.assertEqual(params[key], snap[key], msg)
 
     @attr(type='gate')
+    def test_snapshot_create_with_volume_in_use(self):
+        # Create a snapshot when volume status is in-use
+        # Create a test instance
+        server_name = data_utils.rand_name('instance-')
+        resp, server = self.servers_client.create_server(server_name,
+                                                         self.image_ref,
+                                                         self.flavor_ref)
+        self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
+        self.addCleanup(self.servers_client.delete_server, server['id'])
+        mountpoint = '/dev/%s' % CONF.compute.volume_device_name
+        resp, body = self.volumes_client.attach_volume(
+            self.volume_origin['id'], server['id'], mountpoint)
+        self.assertEqual(202, resp.status)
+        self.volumes_client.wait_for_volume_status(self.volume_origin['id'],
+                                                   'in-use')
+        self.addCleanup(self._detach, self.volume_origin['id'])
+        # Snapshot a volume even if it's attached to an instance
+        snapshot = self.create_snapshot(self.volume_origin['id'],
+                                        force=True)
+        # Delete the snapshot
+        self.snapshots_client.delete_snapshot(snapshot['id'])
+        self.assertEqual(202, resp.status)
+        self.snapshots_client.wait_for_resource_deletion(snapshot['id'])
+        self.snapshots.remove(snapshot)
+
+    @attr(type='gate')
     def test_snapshot_create_get_list_update_delete(self):
         # Create a snapshot
         s_name = data_utils.rand_name('snap')
diff --git a/tempest/api/volume/v2/test_volumes_list.py b/tempest/api/volume/v2/test_volumes_list.py
index 049544d..d0e8b99 100644
--- a/tempest/api/volume/v2/test_volumes_list.py
+++ b/tempest/api/volume/v2/test_volumes_list.py
@@ -23,10 +23,10 @@
 
 LOG = logging.getLogger(__name__)
 
-VOLUME_FIELDS = ('id', 'display_name')
+VOLUME_FIELDS = ('id', 'name')
 
 
-class VolumesListTest(base.BaseVolumeV1Test):
+class VolumesV2ListTestJSON(base.BaseVolumeV2Test):
 
     """
     This test creates a number of 1G volumes. To run successfully,
@@ -48,7 +48,7 @@
             return
 
         def str_vol(vol):
-            return "%s:%s" % (vol['id'], vol['display_name'])
+            return "%s:%s" % (vol['id'], vol['name'])
 
         raw_msg = "Could not find volumes %s in expected list %s; fetched %s"
         self.fail(raw_msg % ([str_vol(v) for v in missing_vols],
@@ -57,7 +57,7 @@
 
     @classmethod
     def setUpClass(cls):
-        super(VolumesListTest, cls).setUpClass()
+        super(VolumesV2ListTestJSON, cls).setUpClass()
         cls.client = cls.volumes_client
 
         # Create 3 test volumes
@@ -67,7 +67,6 @@
         for i in range(3):
             try:
                 volume = cls.create_volume(metadata=cls.metadata)
-
                 resp, volume = cls.client.get_volume(volume['id'])
                 cls.volume_list.append(volume)
                 cls.volume_id_list.append(volume['id'])
@@ -90,9 +89,10 @@
         for volid in cls.volume_id_list:
             resp, _ = cls.client.delete_volume(volid)
             cls.client.wait_for_resource_deletion(volid)
-        super(VolumesListTest, cls).tearDownClass()
+        super(VolumesV2ListTestJSON, cls).tearDownClass()
 
-    def _list_by_param_value_and_assert(self, params, with_detail=False):
+    def _list_by_param_value_and_assert(self, params, expected_list=None,
+                                        with_detail=False):
         """
         Perform list or list_details action with given params
         and validates result.
@@ -104,17 +104,22 @@
             resp, fetched_vol_list = self.client.list_volumes(params=params)
 
         self.assertEqual(200, resp.status)
+        if expected_list is None:
+            expected_list = self.volume_list
+        self.assertVolumesIn(fetched_vol_list, expected_list,
+                             fields=VOLUME_FIELDS)
         # Validating params of fetched volumes
-        for volume in fetched_vol_list:
-            for key in params:
-                msg = "Failed to list volumes %s by %s" % \
-                      ('details' if with_detail else '', key)
-                if key == 'metadata':
-                    self.assertThat(volume[key].items(),
-                                    ContainsAll(params[key].items()),
-                                    msg)
-                else:
-                    self.assertEqual(params[key], volume[key], msg)
+        if with_detail:
+            for volume in fetched_vol_list:
+                for key in params:
+                    msg = "Failed to list volumes %s by %s" % \
+                          ('details' if with_detail else '', key)
+                    if key == 'metadata':
+                        self.assertThat(volume[key].items(),
+                                        ContainsAll(params[key].items()),
+                                        msg)
+                    else:
+                        self.assertEqual(params[key], volume[key], msg)
 
     @attr(type='smoke')
     def test_volume_list(self):
@@ -136,64 +141,44 @@
     @attr(type='gate')
     def test_volume_list_by_name(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
-        params = {'display_name': volume['display_name']}
+        params = {'name': volume['name']}
         resp, fetched_vol = self.client.list_volumes(params)
         self.assertEqual(200, resp.status)
         self.assertEqual(1, len(fetched_vol), str(fetched_vol))
-        self.assertEqual(fetched_vol[0]['display_name'],
-                         volume['display_name'])
+        self.assertEqual(fetched_vol[0]['name'], volume['name'])
 
     @attr(type='gate')
     def test_volume_list_details_by_name(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
-        params = {'display_name': volume['display_name']}
+        params = {'name': volume['name']}
         resp, fetched_vol = self.client.list_volumes_with_detail(params)
         self.assertEqual(200, resp.status)
         self.assertEqual(1, len(fetched_vol), str(fetched_vol))
-        self.assertEqual(fetched_vol[0]['display_name'],
-                         volume['display_name'])
+        self.assertEqual(fetched_vol[0]['name'], volume['name'])
 
     @attr(type='gate')
     def test_volumes_list_by_status(self):
         params = {'status': 'available'}
-        resp, fetched_list = self.client.list_volumes(params)
-        self.assertEqual(200, resp.status)
-        for volume in fetched_list:
-            self.assertEqual('available', volume['status'])
-        self.assertVolumesIn(fetched_list, self.volume_list,
-                             fields=VOLUME_FIELDS)
+        self._list_by_param_value_and_assert(params)
 
     @attr(type='gate')
     def test_volumes_list_details_by_status(self):
         params = {'status': 'available'}
-        resp, fetched_list = self.client.list_volumes_with_detail(params)
-        self.assertEqual(200, resp.status)
-        for volume in fetched_list:
-            self.assertEqual('available', volume['status'])
-        self.assertVolumesIn(fetched_list, self.volume_list)
+        self._list_by_param_value_and_assert(params, with_detail=True)
 
     @attr(type='gate')
     def test_volumes_list_by_availability_zone(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         zone = volume['availability_zone']
         params = {'availability_zone': zone}
-        resp, fetched_list = self.client.list_volumes(params)
-        self.assertEqual(200, resp.status)
-        for volume in fetched_list:
-            self.assertEqual(zone, volume['availability_zone'])
-        self.assertVolumesIn(fetched_list, self.volume_list,
-                             fields=VOLUME_FIELDS)
+        self._list_by_param_value_and_assert(params)
 
     @attr(type='gate')
     def test_volumes_list_details_by_availability_zone(self):
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
         zone = volume['availability_zone']
         params = {'availability_zone': zone}
-        resp, fetched_list = self.client.list_volumes_with_detail(params)
-        self.assertEqual(200, resp.status)
-        for volume in fetched_list:
-            self.assertEqual(zone, volume['availability_zone'])
-        self.assertVolumesIn(fetched_list, self.volume_list)
+        self._list_by_param_value_and_assert(params, with_detail=True)
 
     @attr(type='gate')
     def test_volume_list_with_param_metadata(self):
@@ -211,18 +196,19 @@
     def test_volume_list_param_display_name_and_status(self):
         # Test to list volume when display name and status param is given
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
-        params = {'display_name': volume['display_name'],
+        params = {'name': volume['name'],
                   'status': 'available'}
-        self._list_by_param_value_and_assert(params)
+        self._list_by_param_value_and_assert(params, expected_list=[volume])
 
     @attr(type='gate')
     def test_volume_list_with_detail_param_display_name_and_status(self):
         # Test to list volume when name and status param is given
         volume = self.volume_list[data_utils.rand_int_id(0, 2)]
-        params = {'display_name': volume['display_name'],
+        params = {'name': volume['name'],
                   'status': 'available'}
-        self._list_by_param_value_and_assert(params, with_detail=True)
+        self._list_by_param_value_and_assert(params, expected_list=[volume],
+                                             with_detail=True)
 
 
-class VolumeListTestXML(VolumesListTest):
+class VolumesV2ListTestXML(VolumesV2ListTestJSON):
     _interface = 'xml'
diff --git a/tempest/clients.py b/tempest/clients.py
index 9c1a0f1..c262a20 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -63,8 +63,6 @@
 from tempest.services.compute.v3.json.hosts_client import HostsV3ClientJSON
 from tempest.services.compute.v3.json.hypervisor_client import \
     HypervisorV3ClientJSON
-from tempest.services.compute.v3.json.instance_usage_audit_log_client import \
-    InstanceUsagesAuditLogV3ClientJSON
 from tempest.services.compute.v3.json.interfaces_client import \
     InterfacesV3ClientJSON
 from tempest.services.compute.v3.json.keypairs_client import \
@@ -75,8 +73,6 @@
     ServersV3ClientJSON
 from tempest.services.compute.v3.json.services_client import \
     ServicesV3ClientJSON
-from tempest.services.compute.v3.json.tenant_usages_client import \
-    TenantUsagesV3ClientJSON
 from tempest.services.compute.v3.json.version_client import \
     VersionV3ClientJSON
 from tempest.services.compute.xml.aggregates_client import AggregatesClientXML
@@ -156,6 +152,8 @@
     ExtensionsClientJSON as VolumeExtensionClientJSON
 from tempest.services.volume.json.snapshots_client import SnapshotsClientJSON
 from tempest.services.volume.json.volumes_client import VolumesClientJSON
+from tempest.services.volume.v2.json.volumes_client import VolumesV2ClientJSON
+from tempest.services.volume.v2.xml.volumes_client import VolumesV2ClientXML
 from tempest.services.volume.xml.admin.volume_hosts_client import \
     VolumeHostsClientXML
 from tempest.services.volume.xml.admin.volume_types_client import \
@@ -216,6 +214,7 @@
                 auth_provider)
             self.snapshots_client = SnapshotsClientXML(auth_provider)
             self.volumes_client = VolumesClientXML(auth_provider)
+            self.volumes_v2_client = VolumesV2ClientXML(auth_provider)
             self.volume_types_client = VolumeTypesClientXML(
                 auth_provider)
             self.identity_client = IdentityClientXML(auth_provider)
@@ -280,6 +279,7 @@
                 auth_provider)
             self.snapshots_client = SnapshotsClientJSON(auth_provider)
             self.volumes_client = VolumesClientJSON(auth_provider)
+            self.volumes_v2_client = VolumesV2ClientJSON(auth_provider)
             self.volume_types_client = VolumeTypesClientJSON(
                 auth_provider)
             self.identity_client = IdentityClientJSON(auth_provider)
@@ -305,8 +305,6 @@
             self.aggregates_client = AggregatesClientJSON(
                 auth_provider)
             self.services_client = ServicesClientJSON(auth_provider)
-            self.tenant_usages_v3_client = TenantUsagesV3ClientJSON(
-                auth_provider)
             self.tenant_usages_client = TenantUsagesClientJSON(
                 auth_provider)
             self.version_v3_client = VersionV3ClientJSON(auth_provider)
@@ -321,8 +319,6 @@
                 auth_provider)
             self.instance_usages_audit_log_client = \
                 InstanceUsagesAuditLogClientJSON(auth_provider)
-            self.instance_usages_audit_log_v3_client = \
-                InstanceUsagesAuditLogV3ClientJSON(auth_provider)
             self.volume_hosts_client = VolumeHostsClientJSON(
                 auth_provider)
             self.volumes_extension_client = VolumeExtensionClientJSON(
diff --git a/tempest/config.py b/tempest/config.py
index d24ab34..fa051d5 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -392,6 +392,9 @@
     cfg.BoolOpt('api_v1',
                 default=True,
                 help="Is the v1 volume API enabled"),
+    cfg.BoolOpt('api_v2',
+                default=True,
+                help="Is the v2 volume API enabled"),
 ]
 
 
diff --git a/tempest/services/baremetal/base.py b/tempest/services/baremetal/base.py
index 6e86466..5f6b513 100644
--- a/tempest/services/baremetal/base.py
+++ b/tempest/services/baremetal/base.py
@@ -114,7 +114,7 @@
         """
         uri = self._get_uri(resource, permanent=permanent)
 
-        resp, body = self.get(uri, self.headers)
+        resp, body = self.get(uri)
 
         return resp, self.deserialize(body)
 
@@ -127,7 +127,7 @@
 
         """
         uri = self._get_uri(resource, uuid=uuid, permanent=permanent)
-        resp, body = self.get(uri, self.headers)
+        resp, body = self.get(uri)
 
         return resp, self.deserialize(body)
 
@@ -145,7 +145,7 @@
         body = self.serialize(object_type, object_dict)
         uri = self._get_uri(resource)
 
-        resp, body = self.post(uri, headers=self.headers, body=body)
+        resp, body = self.post(uri, body=body)
 
         return resp, self.deserialize(body)
 
@@ -160,7 +160,7 @@
         """
         uri = self._get_uri(resource, uuid)
 
-        resp, body = self.delete(uri, self.headers)
+        resp, body = self.delete(uri)
         return resp, body
 
     def _patch_request(self, resource, uuid, patch_object):
@@ -176,7 +176,7 @@
         uri = self._get_uri(resource, uuid)
         patch_body = json.dumps(patch_object)
 
-        resp, body = self.patch(uri, headers=self.headers, body=patch_body)
+        resp, body = self.patch(uri, body=patch_body)
         return resp, self.deserialize(body)
 
     @handle_errors
diff --git a/tempest/services/compute/v3/json/instance_usage_audit_log_client.py b/tempest/services/compute/v3/json/instance_usage_audit_log_client.py
deleted file mode 100644
index 3a6ac5f..0000000
--- a/tempest/services/compute/v3/json/instance_usage_audit_log_client.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# Copyright 2013 IBM 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 json
-
-from tempest.common.rest_client import RestClient
-from tempest import config
-
-CONF = config.CONF
-
-
-class InstanceUsagesAuditLogV3ClientJSON(RestClient):
-
-    def __init__(self, auth_provider):
-        super(InstanceUsagesAuditLogV3ClientJSON, self).__init__(
-            auth_provider)
-        self.service = CONF.compute.catalog_v3_type
-
-    def list_instance_usage_audit_logs(self, time_before=None):
-        if time_before:
-            url = 'os-instance-usage-audit-log?before=%s' % time_before
-        else:
-            url = 'os-instance-usage-audit-log'
-        resp, body = self.get(url)
-        body = json.loads(body)
-        return resp, body["instance_usage_audit_log"]
diff --git a/tempest/services/compute/v3/json/tenant_usages_client.py b/tempest/services/compute/v3/json/tenant_usages_client.py
deleted file mode 100644
index 6d59e20..0000000
--- a/tempest/services/compute/v3/json/tenant_usages_client.py
+++ /dev/null
@@ -1,47 +0,0 @@
-# Copyright 2013 NEC Corporation
-# All Rights Reserved.
-#
-#    Licensed under the Apache License, Version 2.0 (the "License"); you may
-#    not use this file except in compliance with the License. You may obtain
-#    a copy of the License at
-#
-#         http://www.apache.org/licenses/LICENSE-2.0
-#
-#    Unless required by applicable law or agreed to in writing, software
-#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-#    License for the specific language governing permissions and limitations
-#    under the License.
-
-import json
-import urllib
-
-from tempest.common.rest_client import RestClient
-from tempest import config
-
-CONF = config.CONF
-
-
-class TenantUsagesV3ClientJSON(RestClient):
-
-    def __init__(self, auth_provider):
-        super(TenantUsagesV3ClientJSON, self).__init__(auth_provider)
-        self.service = CONF.compute.catalog_v3_type
-
-    def list_tenant_usages(self, params=None):
-        url = 'os-simple-tenant-usage'
-        if params:
-            url += '?%s' % urllib.urlencode(params)
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        return resp, body['tenant_usages'][0]
-
-    def get_tenant_usage(self, tenant_id, params=None):
-        url = 'os-simple-tenant-usage/%s' % tenant_id
-        if params:
-            url += '?%s' % urllib.urlencode(params)
-
-        resp, body = self.get(url)
-        body = json.loads(body)
-        return resp, body['tenant_usage']
diff --git a/tempest/services/identity/v3/json/credentials_client.py b/tempest/services/identity/v3/json/credentials_client.py
index a0fbb76..5d6632a 100644
--- a/tempest/services/identity/v3/json/credentials_client.py
+++ b/tempest/services/identity/v3/json/credentials_client.py
@@ -40,8 +40,7 @@
             "user_id": user_id
         }
         post_body = json.dumps({'credential': post_body})
-        resp, body = self.post('credentials', post_body,
-                               self.headers)
+        resp, body = self.post('credentials', post_body)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
         return resp, body['credential']
@@ -63,8 +62,7 @@
             "user_id": user_id
         }
         post_body = json.dumps({'credential': post_body})
-        resp, body = self.patch('credentials/%s' % credential_id, post_body,
-                                self.headers)
+        resp, body = self.patch('credentials/%s' % credential_id, post_body)
         body = json.loads(body)
         body['credential']['blob'] = json.loads(body['credential']['blob'])
         return resp, body['credential']
diff --git a/tempest/services/identity/v3/json/endpoints_client.py b/tempest/services/identity/v3/json/endpoints_client.py
index 1b78115..652c345 100644
--- a/tempest/services/identity/v3/json/endpoints_client.py
+++ b/tempest/services/identity/v3/json/endpoints_client.py
@@ -47,7 +47,7 @@
             'enabled': enabled
         }
         post_body = json.dumps({'endpoint': post_body})
-        resp, body = self.post('endpoints', post_body, self.headers)
+        resp, body = self.post('endpoints', post_body)
         body = json.loads(body)
         return resp, body['endpoint']
 
@@ -66,8 +66,7 @@
         if enabled is not None:
             post_body['enabled'] = enabled
         post_body = json.dumps({'endpoint': post_body})
-        resp, body = self.patch('endpoints/%s' % endpoint_id, post_body,
-                                self.headers)
+        resp, body = self.patch('endpoints/%s' % endpoint_id, post_body)
         body = json.loads(body)
         return resp, body['endpoint']
 
diff --git a/tempest/services/identity/v3/json/identity_client.py b/tempest/services/identity/v3/json/identity_client.py
index ab1dc94..ec3229e 100644
--- a/tempest/services/identity/v3/json/identity_client.py
+++ b/tempest/services/identity/v3/json/identity_client.py
@@ -49,8 +49,7 @@
             'password': password
         }
         post_body = json.dumps({'user': post_body})
-        resp, body = self.post('users', post_body,
-                               self.headers)
+        resp, body = self.post('users', post_body)
         body = json.loads(body)
         return resp, body['user']
 
@@ -72,14 +71,13 @@
             'description': description
         }
         post_body = json.dumps({'user': post_body})
-        resp, body = self.patch('users/%s' % user_id, post_body,
-                                self.headers)
+        resp, body = self.patch('users/%s' % user_id, post_body)
         body = json.loads(body)
         return resp, body['user']
 
     def list_user_projects(self, user_id):
         """Lists the projects on which a user has roles assigned."""
-        resp, body = self.get('users/%s/projects' % user_id, self.headers)
+        resp, body = self.get('users/%s/projects' % user_id)
         body = json.loads(body)
         return resp, body['projects']
 
@@ -112,7 +110,7 @@
             'name': name
         }
         post_body = json.dumps({'project': post_body})
-        resp, body = self.post('projects', post_body, self.headers)
+        resp, body = self.post('projects', post_body)
         body = json.loads(body)
         return resp, body['project']
 
@@ -135,8 +133,7 @@
             'domain_id': domain_id,
         }
         post_body = json.dumps({'project': post_body})
-        resp, body = self.patch('projects/%s' % project_id, post_body,
-                                self.headers)
+        resp, body = self.patch('projects/%s' % project_id, post_body)
         body = json.loads(body)
         return resp, body['project']
 
@@ -157,7 +154,7 @@
             'name': name
         }
         post_body = json.dumps({'role': post_body})
-        resp, body = self.post('roles', post_body, self.headers)
+        resp, body = self.post('roles', post_body)
         body = json.loads(body)
         return resp, body['role']
 
@@ -173,8 +170,7 @@
             'name': name
         }
         post_body = json.dumps({'role': post_body})
-        resp, body = self.patch('roles/%s' % str(role_id), post_body,
-                                self.headers)
+        resp, body = self.patch('roles/%s' % str(role_id), post_body)
         body = json.loads(body)
         return resp, body['role']
 
@@ -186,8 +182,7 @@
     def assign_user_role(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
-                              (project_id, user_id, role_id), None,
-                              self.headers)
+                              (project_id, user_id, role_id), None)
         return resp, body
 
     def create_domain(self, name, **kwargs):
@@ -200,7 +195,7 @@
             'name': name
         }
         post_body = json.dumps({'domain': post_body})
-        resp, body = self.post('domains', post_body, self.headers)
+        resp, body = self.post('domains', post_body)
         body = json.loads(body)
         return resp, body['domain']
 
@@ -227,8 +222,7 @@
             'name': name
         }
         post_body = json.dumps({'domain': post_body})
-        resp, body = self.patch('domains/%s' % domain_id, post_body,
-                                self.headers)
+        resp, body = self.patch('domains/%s' % domain_id, post_body)
         body = json.loads(body)
         return resp, body['domain']
 
@@ -263,13 +257,13 @@
             'name': name
         }
         post_body = json.dumps({'group': post_body})
-        resp, body = self.post('groups', post_body, self.headers)
+        resp, body = self.post('groups', post_body)
         body = json.loads(body)
         return resp, body['group']
 
     def get_group(self, group_id):
         """Get group details."""
-        resp, body = self.get('groups/%s' % group_id, self.headers)
+        resp, body = self.get('groups/%s' % group_id)
         body = json.loads(body)
         return resp, body['group']
 
@@ -283,8 +277,7 @@
             'description': description
         }
         post_body = json.dumps({'group': post_body})
-        resp, body = self.patch('groups/%s' % group_id, post_body,
-                                self.headers)
+        resp, body = self.patch('groups/%s' % group_id, post_body)
         body = json.loads(body)
         return resp, body['group']
 
@@ -296,33 +289,30 @@
     def add_group_user(self, group_id, user_id):
         """Add user into group."""
         resp, body = self.put('groups/%s/users/%s' % (group_id, user_id),
-                              None, self.headers)
+                              None)
         return resp, body
 
     def list_group_users(self, group_id):
         """List users in group."""
-        resp, body = self.get('groups/%s/users' % group_id, self.headers)
+        resp, body = self.get('groups/%s/users' % group_id)
         body = json.loads(body)
         return resp, body['users']
 
     def delete_group_user(self, group_id, user_id):
         """Delete user in group."""
-        resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id),
-                                 self.headers)
+        resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id))
         return resp, body
 
     def assign_user_role_on_project(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
-                              (project_id, user_id, role_id), None,
-                              self.headers)
+                              (project_id, user_id, role_id), None)
         return resp, body
 
     def assign_user_role_on_domain(self, domain_id, user_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/users/%s/roles/%s' %
-                              (domain_id, user_id, role_id), None,
-                              self.headers)
+                              (domain_id, user_id, role_id), None)
         return resp, body
 
     def list_user_roles_on_project(self, project_id, user_id):
@@ -354,15 +344,13 @@
     def assign_group_role_on_project(self, project_id, group_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/groups/%s/roles/%s' %
-                              (project_id, group_id, role_id), None,
-                              self.headers)
+                              (project_id, group_id, role_id), None)
         return resp, body
 
     def assign_group_role_on_domain(self, domain_id, group_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/groups/%s/roles/%s' %
-                              (domain_id, group_id, role_id), None,
-                              self.headers)
+                              (domain_id, group_id, role_id), None)
         return resp, body
 
     def list_group_roles_on_project(self, project_id, group_id):
@@ -404,7 +392,7 @@
             'expires_at': expires_at
         }
         post_body = json.dumps({'trust': post_body})
-        resp, body = self.post('OS-TRUST/trusts', post_body, self.headers)
+        resp, body = self.post('OS-TRUST/trusts', post_body)
         body = json.loads(body)
         return resp, body['trust']
 
@@ -507,11 +495,16 @@
             creds['auth']['scope'] = scope
 
         body = json.dumps(creds)
-        resp, body = self.post(self.auth_url, headers=self.headers, body=body)
+        resp, body = self.post(self.auth_url, body=body)
         return resp, body
 
     def request(self, method, url, headers=None, body=None):
         """A simple HTTP request interface."""
+        if headers is None:
+            # Always accept 'json', for xml token client too.
+            # Because XML response is not easily
+            # converted to the corresponding JSON one
+            headers = self.get_headers(accept_type="json")
         self._log_request(method, url, headers, body)
         resp, resp_body = self.http_obj.request(url, method,
                                                 headers=headers, body=body)
diff --git a/tempest/services/identity/v3/json/policy_client.py b/tempest/services/identity/v3/json/policy_client.py
index c376979..5a3f891 100644
--- a/tempest/services/identity/v3/json/policy_client.py
+++ b/tempest/services/identity/v3/json/policy_client.py
@@ -36,7 +36,7 @@
             "type": type
         }
         post_body = json.dumps({'policy': post_body})
-        resp, body = self.post('policies', post_body, self.headers)
+        resp, body = self.post('policies', post_body)
         body = json.loads(body)
         return resp, body['policy']
 
@@ -62,8 +62,7 @@
         }
         post_body = json.dumps({'policy': post_body})
         url = 'policies/%s' % policy_id
-        resp, body = self.patch(url, post_body,
-                                self.headers)
+        resp, body = self.patch(url, post_body)
         body = json.loads(body)
         return resp, body['policy']
 
diff --git a/tempest/services/identity/v3/json/service_client.py b/tempest/services/identity/v3/json/service_client.py
index 92f7629..094e567 100644
--- a/tempest/services/identity/v3/json/service_client.py
+++ b/tempest/services/identity/v3/json/service_client.py
@@ -41,8 +41,7 @@
             'name': name
         }
         patch_body = json.dumps({'service': patch_body})
-        resp, body = self.patch('services/%s' % service_id,
-                                patch_body, self.headers)
+        resp, body = self.patch('services/%s' % service_id, patch_body)
         body = json.loads(body)
         return resp, body['service']
 
diff --git a/tempest/services/identity/v3/xml/credentials_client.py b/tempest/services/identity/v3/xml/credentials_client.py
index eca86ab..f6fa678 100644
--- a/tempest/services/identity/v3/xml/credentials_client.py
+++ b/tempest/services/identity/v3/xml/credentials_client.py
@@ -61,8 +61,7 @@
         credential = Element('credential', project_id=project_id,
                              type=cred_type, user_id=user_id)
         credential.append(blob)
-        resp, body = self.post('credentials', str(Document(credential)),
-                               self.headers)
+        resp, body = self.post('credentials', str(Document(credential)))
         body = self._parse_body(etree.fromstring(body))
         body['blob'] = json.loads(body['blob'])
         return resp, body
@@ -85,27 +84,25 @@
                              type=cred_type, user_id=user_id)
         credential.append(blob)
         resp, body = self.patch('credentials/%s' % credential_id,
-                                str(Document(credential)),
-                                self.headers)
+                                str(Document(credential)))
         body = self._parse_body(etree.fromstring(body))
         body['blob'] = json.loads(body['blob'])
         return resp, body
 
     def get_credential(self, credential_id):
         """To GET Details of a credential."""
-        resp, body = self.get('credentials/%s' % credential_id, self.headers)
+        resp, body = self.get('credentials/%s' % credential_id)
         body = self._parse_body(etree.fromstring(body))
         body['blob'] = json.loads(body['blob'])
         return resp, body
 
     def list_credentials(self):
         """Lists out all the available credentials."""
-        resp, body = self.get('credentials', self.headers)
+        resp, body = self.get('credentials')
         body = self._parse_creds(etree.fromstring(body))
         return resp, body
 
     def delete_credential(self, credential_id):
         """Deletes a credential."""
-        resp, body = self.delete('credentials/%s' % credential_id,
-                                 self.headers)
+        resp, body = self.delete('credentials/%s' % credential_id)
         return resp, body
diff --git a/tempest/services/identity/v3/xml/endpoints_client.py b/tempest/services/identity/v3/xml/endpoints_client.py
index a20a9f5..2a88c15 100644
--- a/tempest/services/identity/v3/xml/endpoints_client.py
+++ b/tempest/services/identity/v3/xml/endpoints_client.py
@@ -58,7 +58,7 @@
 
     def list_endpoints(self):
         """Get the list of endpoints."""
-        resp, body = self.get("endpoints", self.headers)
+        resp, body = self.get("endpoints")
         body = self._parse_array(etree.fromstring(body))
         return resp, body
 
@@ -72,8 +72,7 @@
                                   interface=interface,
                                   url=url, region=region,
                                   enabled=enabled)
-        resp, body = self.post('endpoints', str(Document(create_endpoint)),
-                               self.headers)
+        resp, body = self.post('endpoints', str(Document(create_endpoint)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -94,8 +93,7 @@
             endpoint.add_attr("region", region)
         if enabled is not None:
             endpoint.add_attr("enabled", enabled)
-        resp, body = self.patch('endpoints/%s' % str(endpoint_id),
-                                str(doc), self.headers)
+        resp, body = self.patch('endpoints/%s' % str(endpoint_id), str(doc))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
diff --git a/tempest/services/identity/v3/xml/identity_client.py b/tempest/services/identity/v3/xml/identity_client.py
index e7b85c1..6304628 100644
--- a/tempest/services/identity/v3/xml/identity_client.py
+++ b/tempest/services/identity/v3/xml/identity_client.py
@@ -98,8 +98,7 @@
                             enabled=str(en).lower(),
                             project_id=project_id,
                             domain_id=domain_id)
-        resp, body = self.post('users', str(Document(post_body)),
-                               self.headers)
+        resp, body = self.post('users', str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -120,32 +119,31 @@
                               description=description,
                               enabled=str(en).lower())
         resp, body = self.patch('users/%s' % user_id,
-                                str(Document(update_user)),
-                                self.headers)
+                                str(Document(update_user)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def list_user_projects(self, user_id):
         """Lists the projects on which a user has roles assigned."""
-        resp, body = self.get('users/%s/projects' % user_id, self.headers)
+        resp, body = self.get('users/%s/projects' % user_id)
         body = self._parse_projects(etree.fromstring(body))
         return resp, body
 
     def get_users(self):
         """Get the list of users."""
-        resp, body = self.get("users", self.headers)
+        resp, body = self.get("users")
         body = self._parse_array(etree.fromstring(body))
         return resp, body
 
     def get_user(self, user_id):
         """GET a user."""
-        resp, body = self.get("users/%s" % user_id, self.headers)
+        resp, body = self.get("users/%s" % user_id)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def delete_user(self, user_id):
         """Deletes a User."""
-        resp, body = self.delete("users/%s" % user_id, self.headers)
+        resp, body = self.delete("users/%s" % user_id)
         return resp, body
 
     def create_project(self, name, **kwargs):
@@ -160,14 +158,13 @@
                             enabled=str(en).lower(),
                             name=name)
         resp, body = self.post('projects',
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def list_projects(self):
         """Get the list of projects."""
-        resp, body = self.get("projects", self.headers)
+        resp, body = self.get("projects")
         body = self._parse_projects(etree.fromstring(body))
         return resp, body
 
@@ -185,14 +182,13 @@
                             enabled=str(en).lower(),
                             domain_id=domain_id)
         resp, body = self.patch('projects/%s' % project_id,
-                                str(Document(post_body)),
-                                self.headers)
+                                str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def get_project(self, project_id):
         """GET a Project."""
-        resp, body = self.get("projects/%s" % project_id, self.headers)
+        resp, body = self.get("projects/%s" % project_id)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -206,15 +202,13 @@
         post_body = Element("role",
                             xmlns=XMLNS,
                             name=name)
-        resp, body = self.post('roles',
-                               str(Document(post_body)),
-                               self.headers)
+        resp, body = self.post('roles', str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def get_role(self, role_id):
         """GET a Role."""
-        resp, body = self.get('roles/%s' % str(role_id), self.headers)
+        resp, body = self.get('roles/%s' % str(role_id))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -224,21 +218,19 @@
                             xmlns=XMLNS,
                             name=name)
         resp, body = self.patch('roles/%s' % str(role_id),
-                                str(Document(post_body)),
-                                self.headers)
+                                str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def delete_role(self, role_id):
         """Delete a role."""
-        resp, body = self.delete('roles/%s' % str(role_id),
-                                 self.headers)
+        resp, body = self.delete('roles/%s' % str(role_id))
         return resp, body
 
     def assign_user_role(self, project_id, user_id, role_id):
         """Add roles to a user on a tenant."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
-                              (project_id, user_id, role_id), '', self.headers)
+                              (project_id, user_id, role_id), '')
         return resp, body
 
     def create_domain(self, name, **kwargs):
@@ -250,20 +242,19 @@
                             name=name,
                             description=description,
                             enabled=str(en).lower())
-        resp, body = self.post('domains', str(Document(post_body)),
-                               self.headers)
+        resp, body = self.post('domains', str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def list_domains(self):
         """Get the list of domains."""
-        resp, body = self.get("domains", self.headers)
+        resp, body = self.get("domains")
         body = self._parse_domains(etree.fromstring(body))
         return resp, body
 
     def delete_domain(self, domain_id):
         """Delete a domain."""
-        resp, body = self.delete('domains/%s' % domain_id, self.headers)
+        resp, body = self.delete('domains/%s' % domain_id)
         return resp, body
 
     def update_domain(self, domain_id, **kwargs):
@@ -278,14 +269,13 @@
                             description=description,
                             enabled=str(en).lower())
         resp, body = self.patch('domains/%s' % domain_id,
-                                str(Document(post_body)),
-                                self.headers)
+                                str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def get_domain(self, domain_id):
         """Get Domain details."""
-        resp, body = self.get('domains/%s' % domain_id, self.headers)
+        resp, body = self.get('domains/%s' % domain_id)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -315,14 +305,13 @@
                             description=description,
                             domain_id=domain_id,
                             project_id=project_id)
-        resp, body = self.post('groups', str(Document(post_body)),
-                               self.headers)
+        resp, body = self.post('groups', str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def get_group(self, group_id):
         """Get group details."""
-        resp, body = self.get('groups/%s' % group_id, self.headers)
+        resp, body = self.get('groups/%s' % group_id)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -336,112 +325,105 @@
                             name=name,
                             description=description)
         resp, body = self.patch('groups/%s' % group_id,
-                                str(Document(post_body)),
-                                self.headers)
+                                str(Document(post_body)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def delete_group(self, group_id):
         """Delete a group."""
-        resp, body = self.delete('groups/%s' % group_id, self.headers)
+        resp, body = self.delete('groups/%s' % group_id)
         return resp, body
 
     def add_group_user(self, group_id, user_id):
         """Add user into group."""
-        resp, body = self.put('groups/%s/users/%s' % (group_id, user_id),
-                              '', self.headers)
+        resp, body = self.put('groups/%s/users/%s' % (group_id, user_id), '')
         return resp, body
 
     def list_group_users(self, group_id):
         """List users in group."""
-        resp, body = self.get('groups/%s/users' % group_id, self.headers)
+        resp, body = self.get('groups/%s/users' % group_id)
         body = self._parse_group_users(etree.fromstring(body))
         return resp, body
 
     def delete_group_user(self, group_id, user_id):
         """Delete user in group."""
-        resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id),
-                                 self.headers)
+        resp, body = self.delete('groups/%s/users/%s' % (group_id, user_id))
         return resp, body
 
     def assign_user_role_on_project(self, project_id, user_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/users/%s/roles/%s' %
-                              (project_id, user_id, role_id), '',
-                              self.headers)
+                              (project_id, user_id, role_id), '')
         return resp, body
 
     def assign_user_role_on_domain(self, domain_id, user_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/users/%s/roles/%s' %
-                              (domain_id, user_id, role_id), '',
-                              self.headers)
+                              (domain_id, user_id, role_id), '')
         return resp, body
 
     def list_user_roles_on_project(self, project_id, user_id):
         """list roles of a user on a project."""
         resp, body = self.get('projects/%s/users/%s/roles' %
-                              (project_id, user_id), self.headers)
+                              (project_id, user_id))
         body = self._parse_roles(etree.fromstring(body))
         return resp, body
 
     def list_user_roles_on_domain(self, domain_id, user_id):
         """list roles of a user on a domain."""
         resp, body = self.get('domains/%s/users/%s/roles' %
-                              (domain_id, user_id), self.headers)
+                              (domain_id, user_id))
         body = self._parse_roles(etree.fromstring(body))
         return resp, body
 
     def revoke_role_from_user_on_project(self, project_id, user_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/users/%s/roles/%s' %
-                                 (project_id, user_id, role_id), self.headers)
+                                 (project_id, user_id, role_id))
         return resp, body
 
     def revoke_role_from_user_on_domain(self, domain_id, user_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/users/%s/roles/%s' %
-                                 (domain_id, user_id, role_id), self.headers)
+                                 (domain_id, user_id, role_id))
         return resp, body
 
     def assign_group_role_on_project(self, project_id, group_id, role_id):
         """Add roles to a user on a project."""
         resp, body = self.put('projects/%s/groups/%s/roles/%s' %
-                              (project_id, group_id, role_id), '',
-                              self.headers)
+                              (project_id, group_id, role_id), '')
         return resp, body
 
     def assign_group_role_on_domain(self, domain_id, group_id, role_id):
         """Add roles to a user on a domain."""
         resp, body = self.put('domains/%s/groups/%s/roles/%s' %
-                              (domain_id, group_id, role_id), '',
-                              self.headers)
+                              (domain_id, group_id, role_id), '')
         return resp, body
 
     def list_group_roles_on_project(self, project_id, group_id):
         """list roles of a user on a project."""
         resp, body = self.get('projects/%s/groups/%s/roles' %
-                              (project_id, group_id), self.headers)
+                              (project_id, group_id))
         body = self._parse_roles(etree.fromstring(body))
         return resp, body
 
     def list_group_roles_on_domain(self, domain_id, group_id):
         """list roles of a user on a domain."""
         resp, body = self.get('domains/%s/groups/%s/roles' %
-                              (domain_id, group_id), self.headers)
+                              (domain_id, group_id))
         body = self._parse_roles(etree.fromstring(body))
         return resp, body
 
     def revoke_role_from_group_on_project(self, project_id, group_id, role_id):
         """Delete role of a user on a project."""
         resp, body = self.delete('projects/%s/groups/%s/roles/%s' %
-                                 (project_id, group_id, role_id), self.headers)
+                                 (project_id, group_id, role_id))
         return resp, body
 
     def revoke_role_from_group_on_domain(self, domain_id, group_id, role_id):
         """Delete role of a user on a domain."""
         resp, body = self.delete('domains/%s/groups/%s/roles/%s' %
-                                 (domain_id, group_id, role_id), self.headers)
+                                 (domain_id, group_id, role_id))
         return resp, body
 
 
@@ -501,15 +483,16 @@
             scope.append(project)
             auth.append(scope)
 
-        resp, body = self.post(self.auth_url, headers=self.headers,
-                               body=str(Document(auth)))
+        resp, body = self.post(self.auth_url, body=str(Document(auth)))
         return resp, body
 
     def request(self, method, url, headers=None, body=None):
         """A simple HTTP request interface."""
-        # Send XML, accept JSON. XML response is not easily
-        # converted to the corresponding JSON one
-        headers['Accept'] = 'application/json'
+        if headers is None:
+            # Always accept 'json', for xml token client too.
+            # Because XML response is not easily
+            # converted to the corresponding JSON one
+            headers = self.get_headers(accept_type="json")
         self._log_request(method, url, headers, body)
         resp, resp_body = self.http_obj.request(url, method,
                                                 headers=headers, body=body)
diff --git a/tempest/services/identity/v3/xml/policy_client.py b/tempest/services/identity/v3/xml/policy_client.py
index 429c6a4..a7e63a7 100644
--- a/tempest/services/identity/v3/xml/policy_client.py
+++ b/tempest/services/identity/v3/xml/policy_client.py
@@ -59,21 +59,20 @@
     def create_policy(self, blob, type):
         """Creates a Policy."""
         create_policy = Element("policy", xmlns=XMLNS, blob=blob, type=type)
-        resp, body = self.post('policies', str(Document(create_policy)),
-                               self.headers)
+        resp, body = self.post('policies', str(Document(create_policy)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def list_policies(self):
         """Lists the policies."""
-        resp, body = self.get('policies', self.headers)
+        resp, body = self.get('policies')
         body = self._parse_array(etree.fromstring(body))
         return resp, body
 
     def get_policy(self, policy_id):
         """Lists out the given policy."""
         url = 'policies/%s' % policy_id
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
@@ -83,8 +82,7 @@
         type = kwargs.get('type')
         update_policy = Element("policy", xmlns=XMLNS, type=type)
         url = 'policies/%s' % policy_id
-        resp, body = self.patch(url, str(Document(update_policy)),
-                                self.headers)
+        resp, body = self.patch(url, str(Document(update_policy)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
diff --git a/tempest/services/identity/v3/xml/service_client.py b/tempest/services/identity/v3/xml/service_client.py
index df9b234..f43ed2c 100644
--- a/tempest/services/identity/v3/xml/service_client.py
+++ b/tempest/services/identity/v3/xml/service_client.py
@@ -57,14 +57,13 @@
                                  description=description,
                                  type=type)
         resp, body = self.patch('services/%s' % service_id,
-                                str(Document(update_service)),
-                                self.headers)
+                                str(Document(update_service)))
         body = self._parse_body(etree.fromstring(body))
         return resp, body
 
     def get_service(self, service_id):
         """Get Service."""
         url = 'services/%s' % service_id
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_body(etree.fromstring(body))
         return resp, body
diff --git a/tempest/services/identity/xml/identity_client.py b/tempest/services/identity/xml/identity_client.py
index 81846da..50403fb 100644
--- a/tempest/services/identity/xml/identity_client.py
+++ b/tempest/services/identity/xml/identity_client.py
@@ -97,7 +97,7 @@
         """Enables or disables a user."""
         enable_user = xml.Element("user", enabled=str(enabled).lower())
         resp, body = self.put('users/%s/enabled' % user_id,
-                              str(xml.Document(enable_user)), self.headers)
+                              str(xml.Document(enable_user)))
         return resp, self._parse_resp(body)
 
     def create_service(self, name, service_type, **kwargs):
diff --git a/tempest/services/image/v1/json/image_client.py b/tempest/services/image/v1/json/image_client.py
index 3724ac6..932fa14 100644
--- a/tempest/services/image/v1/json/image_client.py
+++ b/tempest/services/image/v1/json/image_client.py
@@ -248,7 +248,7 @@
         body = None
         if can_share:
             body = json.dumps({'member': {'can_share': True}})
-        resp, __ = self.put(url, body, self.headers)
+        resp, __ = self.put(url, body)
         return resp
 
     def delete_member(self, member_id, image_id):
@@ -259,7 +259,7 @@
     def replace_membership_list(self, image_id, member_list):
         url = 'v1/images/%s/members' % image_id
         body = json.dumps({'membership': member_list})
-        resp, data = self.put(url, body, self.headers)
+        resp, data = self.put(url, body)
         data = json.loads(data)
         return resp, data
 
diff --git a/tempest/services/image/v2/json/image_client.py b/tempest/services/image/v2/json/image_client.py
index b825519..58819d0 100644
--- a/tempest/services/image/v2/json/image_client.py
+++ b/tempest/services/image/v2/json/image_client.py
@@ -86,7 +86,7 @@
         data = json.dumps(params)
         self._validate_schema(data)
 
-        resp, body = self.post('v2/images', data, self.headers)
+        resp, body = self.post('v2/images', data)
         body = json.loads(body)
         return resp, body
 
@@ -132,7 +132,7 @@
 
     def add_image_tag(self, image_id, tag):
         url = 'v2/images/%s/tags/%s' % (image_id, tag)
-        resp, body = self.put(url, body=None, headers=self.headers)
+        resp, body = self.put(url, body=None)
         return resp, body
 
     def delete_image_tag(self, image_id, tag):
@@ -150,7 +150,7 @@
     def add_member(self, image_id, member_id):
         url = 'v2/images/%s/members' % image_id
         data = json.dumps({'member': member_id})
-        resp, body = self.post(url, data, self.headers)
+        resp, body = self.post(url, data)
         body = json.loads(body)
         self.expected_success(200, resp)
         return resp, body
@@ -159,7 +159,7 @@
         """Valid status are: ``pending``, ``accepted``,  ``rejected``."""
         url = 'v2/images/%s/members/%s' % (image_id, member_id)
         data = json.dumps({'status': status})
-        resp, body = self.put(url, data, self.headers)
+        resp, body = self.put(url, data)
         body = json.loads(body)
         self.expected_success(200, resp)
         return resp, body
diff --git a/tempest/services/network/network_client_base.py b/tempest/services/network/network_client_base.py
index 96b9b1d..07716fa 100644
--- a/tempest/services/network/network_client_base.py
+++ b/tempest/services/network/network_client_base.py
@@ -115,9 +115,14 @@
         return _delete
 
     def _shower(self, resource_name):
-        def _show(resource_id):
+        def _show(resource_id, field_list=[]):
+            # field_list is a sequence of two-element tuples, with the
+            # first element being 'fields'. An example:
+            # [('fields', 'id'), ('fields', 'name')]
             plural = self.pluralize(resource_name)
             uri = '%s/%s' % (self.get_uri(plural), resource_id)
+            if field_list:
+                uri += '?' + urllib.urlencode(field_list)
             resp, body = self.get(uri)
             body = self.deserialize_single(body)
             return resp, body
diff --git a/tempest/services/object_storage/object_client.py b/tempest/services/object_storage/object_client.py
index 79c5719..09e484e 100644
--- a/tempest/services/object_storage/object_client.py
+++ b/tempest/services/object_storage/object_client.py
@@ -32,7 +32,7 @@
     def create_object(self, container, object_name, data, params=None):
         """Create storage object."""
 
-        headers = dict(self.headers)
+        headers = self.get_headers()
         if not data:
             headers['content-length'] = '0'
         url = "%s/%s" % (str(container), str(object_name))
@@ -131,7 +131,7 @@
     def create_object_segments(self, container, object_name, segment, data):
         """Creates object segments."""
         url = "{0}/{1}/{2}".format(container, object_name, segment)
-        resp, body = self.put(url, data, self.headers)
+        resp, body = self.put(url, data)
         return resp, body
 
 
diff --git a/tempest/services/orchestration/json/orchestration_client.py b/tempest/services/orchestration/json/orchestration_client.py
index b70b2e8..113003c 100644
--- a/tempest/services/orchestration/json/orchestration_client.py
+++ b/tempest/services/orchestration/json/orchestration_client.py
@@ -90,7 +90,7 @@
 
         # Password must be provided on stack create so that heat
         # can perform future operations on behalf of the user
-        headers = dict(self.headers)
+        headers = self.get_headers()
         headers['X-Auth-Key'] = self.password
         headers['X-Auth-User'] = self.user
         return headers, body
@@ -106,14 +106,14 @@
         """Suspend a stack."""
         url = 'stacks/%s/actions' % stack_identifier
         body = {'suspend': None}
-        resp, body = self.post(url, json.dumps(body), self.headers)
+        resp, body = self.post(url, json.dumps(body))
         return resp, body
 
     def resume_stack(self, stack_identifier):
         """Resume a stack."""
         url = 'stacks/%s/actions' % stack_identifier
         body = {'resume': None}
-        resp, body = self.post(url, json.dumps(body), self.headers)
+        resp, body = self.post(url, json.dumps(body))
         return resp, body
 
     def list_resources(self, stack_identifier):
@@ -232,7 +232,7 @@
     def _validate_template(self, post_body):
         """Returns the validation request result."""
         post_body = json.dumps(post_body)
-        resp, body = self.post('validate', post_body, self.headers)
+        resp, body = self.post('validate', post_body)
         body = json.loads(body)
         return resp, body
 
diff --git a/tempest/services/telemetry/telemetry_client_base.py b/tempest/services/telemetry/telemetry_client_base.py
index a35a1ab..610f07b 100644
--- a/tempest/services/telemetry/telemetry_client_base.py
+++ b/tempest/services/telemetry/telemetry_client_base.py
@@ -38,7 +38,6 @@
     def __init__(self, auth_provider):
         self.rest_client = self.get_rest_client(auth_provider)
         self.rest_client.service = CONF.telemetry.catalog_type
-        self.headers = self.rest_client.headers
         self.version = '2'
         self.uri_prefix = "v%s" % self.version
 
@@ -69,15 +68,15 @@
 
     def post(self, uri, body):
         body = self.serialize(body)
-        resp, body = self.rest_client.post(uri, body, self.headers)
+        resp, body = self.rest_client.post(uri, body)
         body = self.deserialize(body)
         return resp, body
 
     def put(self, uri, body):
-        return self.rest_client.put(uri, body, self.headers)
+        return self.rest_client.put(uri, body)
 
     def get(self, uri):
-        resp, body = self.rest_client.get(uri, self.headers)
+        resp, body = self.rest_client.get(uri)
         body = self.deserialize(body)
         return resp, body
 
diff --git a/tempest/services/volume/json/admin/volume_types_client.py b/tempest/services/volume/json/admin/volume_types_client.py
index 653532e..0d50524 100644
--- a/tempest/services/volume/json/admin/volume_types_client.py
+++ b/tempest/services/volume/json/admin/volume_types_client.py
@@ -64,7 +64,7 @@
         }
 
         post_body = json.dumps({'volume_type': post_body})
-        resp, body = self.post('types', post_body, self.headers)
+        resp, body = self.post('types', post_body)
         body = json.loads(body)
         return resp, body['volume_type']
 
@@ -98,7 +98,7 @@
         """
         url = "types/%s/extra_specs" % str(vol_type_id)
         post_body = json.dumps({'extra_specs': extra_spec})
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         body = json.loads(body)
         return resp, body['extra_specs']
 
@@ -119,6 +119,6 @@
         url = "types/%s/extra_specs/%s" % (str(vol_type_id),
                                            str(extra_spec_name))
         put_body = json.dumps(extra_spec)
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body
diff --git a/tempest/services/volume/json/snapshots_client.py b/tempest/services/volume/json/snapshots_client.py
index 0a79469..ba33c49 100644
--- a/tempest/services/volume/json/snapshots_client.py
+++ b/tempest/services/volume/json/snapshots_client.py
@@ -72,15 +72,14 @@
         post_body = {'volume_id': volume_id}
         post_body.update(kwargs)
         post_body = json.dumps({'snapshot': post_body})
-        resp, body = self.post('snapshots', post_body, self.headers)
+        resp, body = self.post('snapshots', post_body)
         body = json.loads(body)
         return resp, body['snapshot']
 
     def update_snapshot(self, snapshot_id, **kwargs):
         """Updates a snapshot."""
         put_body = json.dumps({'snapshot': kwargs})
-        resp, body = self.put('snapshots/%s' % snapshot_id, put_body,
-                              self.headers)
+        resp, body = self.put('snapshots/%s' % snapshot_id, put_body)
         body = json.loads(body)
         return resp, body['snapshot']
 
@@ -135,8 +134,7 @@
     def reset_snapshot_status(self, snapshot_id, status):
         """Reset the specified snapshot's status."""
         post_body = json.dumps({'os-reset_status': {"status": status}})
-        resp, body = self.post('snapshots/%s/action' % snapshot_id, post_body,
-                               self.headers)
+        resp, body = self.post('snapshots/%s/action' % snapshot_id, post_body)
         return resp, body
 
     def update_snapshot_status(self, snapshot_id, status, progress):
@@ -147,21 +145,21 @@
         }
         post_body = json.dumps({'os-update_snapshot_status': post_body})
         url = 'snapshots/%s/action' % str(snapshot_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def create_snapshot_metadata(self, snapshot_id, metadata):
         """Create metadata for the snapshot."""
         put_body = json.dumps({'metadata': metadata})
         url = "snapshots/%s/metadata" % str(snapshot_id)
-        resp, body = self.post(url, put_body, self.headers)
+        resp, body = self.post(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
     def get_snapshot_metadata(self, snapshot_id):
         """Get metadata of the snapshot."""
         url = "snapshots/%s/metadata" % str(snapshot_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -169,7 +167,7 @@
         """Update metadata for the snapshot."""
         put_body = json.dumps({'metadata': metadata})
         url = "snapshots/%s/metadata" % str(snapshot_id)
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -177,19 +175,18 @@
         """Update metadata item for the snapshot."""
         put_body = json.dumps({'meta': meta_item})
         url = "snapshots/%s/metadata/%s" % (str(snapshot_id), str(id))
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['meta']
 
     def delete_snapshot_metadata_item(self, snapshot_id, id):
         """Delete metadata item for the snapshot."""
         url = "snapshots/%s/metadata/%s" % (str(snapshot_id), str(id))
-        resp, body = self.delete(url, self.headers)
+        resp, body = self.delete(url)
         return resp, body
 
     def force_delete_snapshot(self, snapshot_id):
         """Force Delete Snapshot."""
         post_body = json.dumps({'os-force_delete': {}})
-        resp, body = self.post('snapshots/%s/action' % snapshot_id, post_body,
-                               self.headers)
+        resp, body = self.post('snapshots/%s/action' % snapshot_id, post_body)
         return resp, body
diff --git a/tempest/services/volume/json/volumes_client.py b/tempest/services/volume/json/volumes_client.py
index 0524212..2183c56 100644
--- a/tempest/services/volume/json/volumes_client.py
+++ b/tempest/services/volume/json/volumes_client.py
@@ -81,15 +81,14 @@
         post_body = {'size': size}
         post_body.update(kwargs)
         post_body = json.dumps({'volume': post_body})
-        resp, body = self.post('volumes', post_body, self.headers)
+        resp, body = self.post('volumes', post_body)
         body = json.loads(body)
         return resp, body['volume']
 
     def update_volume(self, volume_id, **kwargs):
         """Updates the Specified Volume."""
         put_body = json.dumps({'volume': kwargs})
-        resp, body = self.put('volumes/%s' % volume_id, put_body,
-                              self.headers)
+        resp, body = self.put('volumes/%s' % volume_id, put_body)
         body = json.loads(body)
         return resp, body['volume']
 
@@ -105,7 +104,7 @@
         }
         post_body = json.dumps({'os-volume_upload_image': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         body = json.loads(body)
         return resp, body['os-volume_upload_image']
 
@@ -117,7 +116,7 @@
         }
         post_body = json.dumps({'os-attach': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def detach_volume(self, volume_id):
@@ -125,7 +124,7 @@
         post_body = {}
         post_body = json.dumps({'os-detach': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def reserve_volume(self, volume_id):
@@ -133,7 +132,7 @@
         post_body = {}
         post_body = json.dumps({'os-reserve': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def unreserve_volume(self, volume_id):
@@ -141,7 +140,7 @@
         post_body = {}
         post_body = json.dumps({'os-unreserve': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def wait_for_volume_status(self, volume_id, status):
@@ -178,28 +177,25 @@
         }
         post_body = json.dumps({'os-extend': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def reset_volume_status(self, volume_id, status):
         """Reset the Specified Volume's Status."""
         post_body = json.dumps({'os-reset_status': {"status": status}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def volume_begin_detaching(self, volume_id):
         """Volume Begin Detaching."""
         post_body = json.dumps({'os-begin_detaching': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def volume_roll_detaching(self, volume_id):
         """Volume Roll Detaching."""
         post_body = json.dumps({'os-roll_detaching': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def create_volume_transfer(self, vol_id, display_name=None):
@@ -210,16 +206,14 @@
         if display_name:
             post_body['name'] = display_name
         post_body = json.dumps({'transfer': post_body})
-        resp, body = self.post('os-volume-transfer',
-                               post_body,
-                               self.headers)
+        resp, body = self.post('os-volume-transfer', post_body)
         body = json.loads(body)
         return resp, body['transfer']
 
     def get_volume_transfer(self, transfer_id):
         """Returns the details of a volume transfer."""
         url = "os-volume-transfer/%s" % str(transfer_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = json.loads(body)
         return resp, body['transfer']
 
@@ -243,7 +237,7 @@
         }
         url = 'os-volume-transfer/%s/accept' % transfer_id
         post_body = json.dumps({'accept': post_body})
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         body = json.loads(body)
         return resp, body['transfer']
 
@@ -254,28 +248,27 @@
         }
         post_body = json.dumps({'os-update_readonly_flag': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def force_delete_volume(self, volume_id):
         """Force Delete Volume."""
         post_body = json.dumps({'os-force_delete': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def create_volume_metadata(self, volume_id, metadata):
         """Create metadata for the volume."""
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.post(url, put_body, self.headers)
+        resp, body = self.post(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
     def get_volume_metadata(self, volume_id):
         """Get metadata of the volume."""
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -283,7 +276,7 @@
         """Update metadata for the volume."""
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -291,12 +284,12 @@
         """Update metadata item for the volume."""
         put_body = json.dumps({'meta': meta_item})
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['meta']
 
     def delete_volume_metadata_item(self, volume_id, id):
         """Delete metadata item for the volume."""
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.delete(url, self.headers)
+        resp, body = self.delete(url)
         return resp, body
diff --git a/tempest/services/volume/v2/json/volumes_client.py b/tempest/services/volume/v2/json/volumes_client.py
index 0524212..bd98402 100644
--- a/tempest/services/volume/v2/json/volumes_client.py
+++ b/tempest/services/volume/v2/json/volumes_client.py
@@ -24,14 +24,15 @@
 CONF = config.CONF
 
 
-class VolumesClientJSON(RestClient):
+class VolumesV2ClientJSON(RestClient):
     """
-    Client class to send CRUD Volume API requests to a Cinder endpoint
+    Client class to send CRUD Volume V2 API requests to a Cinder endpoint
     """
 
     def __init__(self, auth_provider):
-        super(VolumesClientJSON, self).__init__(auth_provider)
+        super(VolumesV2ClientJSON, self).__init__(auth_provider)
 
+        self.api_version = "v2"
         self.service = CONF.volume.catalog_type
         self.build_interval = CONF.volume.build_interval
         self.build_timeout = CONF.volume.build_timeout
@@ -72,7 +73,7 @@
         Creates a new Volume.
         size(Required): Size of volume in GB.
         Following optional keyword arguments are accepted:
-        display_name: Optional Volume Name.
+        name: Optional Volume Name.
         metadata: A dictionary of values to be used as metadata.
         volume_type: Optional Name of volume_type for the volume
         snapshot_id: When specified the volume is created from this snapshot
@@ -81,15 +82,14 @@
         post_body = {'size': size}
         post_body.update(kwargs)
         post_body = json.dumps({'volume': post_body})
-        resp, body = self.post('volumes', post_body, self.headers)
+        resp, body = self.post('volumes', post_body)
         body = json.loads(body)
         return resp, body['volume']
 
     def update_volume(self, volume_id, **kwargs):
         """Updates the Specified Volume."""
         put_body = json.dumps({'volume': kwargs})
-        resp, body = self.put('volumes/%s' % volume_id, put_body,
-                              self.headers)
+        resp, body = self.put('volumes/%s' % volume_id, put_body)
         body = json.loads(body)
         return resp, body['volume']
 
@@ -105,7 +105,7 @@
         }
         post_body = json.dumps({'os-volume_upload_image': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         body = json.loads(body)
         return resp, body['os-volume_upload_image']
 
@@ -117,7 +117,7 @@
         }
         post_body = json.dumps({'os-attach': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def detach_volume(self, volume_id):
@@ -125,7 +125,7 @@
         post_body = {}
         post_body = json.dumps({'os-detach': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def reserve_volume(self, volume_id):
@@ -133,7 +133,7 @@
         post_body = {}
         post_body = json.dumps({'os-reserve': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def unreserve_volume(self, volume_id):
@@ -141,13 +141,13 @@
         post_body = {}
         post_body = json.dumps({'os-unreserve': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def wait_for_volume_status(self, volume_id, status):
         """Waits for a Volume to reach a given status."""
         resp, body = self.get_volume(volume_id)
-        volume_name = body['display_name']
+        volume_name = body['name']
         volume_status = body['status']
         start = int(time.time())
 
@@ -178,48 +178,43 @@
         }
         post_body = json.dumps({'os-extend': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def reset_volume_status(self, volume_id, status):
         """Reset the Specified Volume's Status."""
         post_body = json.dumps({'os-reset_status': {"status": status}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def volume_begin_detaching(self, volume_id):
         """Volume Begin Detaching."""
         post_body = json.dumps({'os-begin_detaching': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def volume_roll_detaching(self, volume_id):
         """Volume Roll Detaching."""
         post_body = json.dumps({'os-roll_detaching': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
-    def create_volume_transfer(self, vol_id, display_name=None):
+    def create_volume_transfer(self, vol_id, name=None):
         """Create a volume transfer."""
         post_body = {
             'volume_id': vol_id
         }
-        if display_name:
-            post_body['name'] = display_name
+        if name:
+            post_body['name'] = name
         post_body = json.dumps({'transfer': post_body})
-        resp, body = self.post('os-volume-transfer',
-                               post_body,
-                               self.headers)
+        resp, body = self.post('os-volume-transfer', post_body)
         body = json.loads(body)
         return resp, body['transfer']
 
     def get_volume_transfer(self, transfer_id):
         """Returns the details of a volume transfer."""
         url = "os-volume-transfer/%s" % str(transfer_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = json.loads(body)
         return resp, body['transfer']
 
@@ -243,7 +238,7 @@
         }
         url = 'os-volume-transfer/%s/accept' % transfer_id
         post_body = json.dumps({'accept': post_body})
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         body = json.loads(body)
         return resp, body['transfer']
 
@@ -254,28 +249,27 @@
         }
         post_body = json.dumps({'os-update_readonly_flag': post_body})
         url = 'volumes/%s/action' % (volume_id)
-        resp, body = self.post(url, post_body, self.headers)
+        resp, body = self.post(url, post_body)
         return resp, body
 
     def force_delete_volume(self, volume_id):
         """Force Delete Volume."""
         post_body = json.dumps({'os-force_delete': {}})
-        resp, body = self.post('volumes/%s/action' % volume_id, post_body,
-                               self.headers)
+        resp, body = self.post('volumes/%s/action' % volume_id, post_body)
         return resp, body
 
     def create_volume_metadata(self, volume_id, metadata):
         """Create metadata for the volume."""
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.post(url, put_body, self.headers)
+        resp, body = self.post(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
     def get_volume_metadata(self, volume_id):
         """Get metadata of the volume."""
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -283,7 +277,7 @@
         """Update metadata for the volume."""
         put_body = json.dumps({'metadata': metadata})
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['metadata']
 
@@ -291,12 +285,12 @@
         """Update metadata item for the volume."""
         put_body = json.dumps({'meta': meta_item})
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.put(url, put_body, self.headers)
+        resp, body = self.put(url, put_body)
         body = json.loads(body)
         return resp, body['meta']
 
     def delete_volume_metadata_item(self, volume_id, id):
         """Delete metadata item for the volume."""
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.delete(url, self.headers)
+        resp, body = self.delete(url)
         return resp, body
diff --git a/tempest/services/volume/v2/xml/volumes_client.py b/tempest/services/volume/v2/xml/volumes_client.py
index deb56fd..69e3f5b 100644
--- a/tempest/services/volume/v2/xml/volumes_client.py
+++ b/tempest/services/volume/v2/xml/volumes_client.py
@@ -30,13 +30,15 @@
 CONF = config.CONF
 
 
-class VolumesClientXML(RestClientXML):
+class VolumesV2ClientXML(RestClientXML):
     """
     Client class to send CRUD Volume API requests to a Cinder endpoint
     """
 
     def __init__(self, auth_provider):
-        super(VolumesClientXML, self).__init__(auth_provider)
+        super(VolumesV2ClientXML, self).__init__(auth_provider)
+
+        self.api_version = "v2"
         self.service = CONF.volume.catalog_type
         self.build_interval = CONF.compute.build_interval
         self.build_timeout = CONF.compute.build_timeout
@@ -87,13 +89,11 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
             volumes += [self._parse_volume(vol) for vol in list(body)]
-        for v in volumes:
-            v = self._check_if_bootable(v)
         return resp, volumes
 
     def list_volumes_with_detail(self, params=None):
@@ -103,7 +103,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
@@ -115,7 +115,7 @@
     def get_volume(self, volume_id):
         """Returns the details of a single volume."""
         url = "volumes/%s" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_volume(etree.fromstring(body))
         body = self._check_if_bootable(body)
         return resp, body
@@ -124,7 +124,7 @@
         """Creates a new Volume.
 
         :param size: Size of volume in GB. (Required)
-        :param display_name: Optional Volume Name.
+        :param name: Optional Volume Name.
         :param metadata: An optional dictionary of values for metadata.
         :param volume_type: Optional Name of volume_type for the volume
         :param snapshot_id: When specified the volume is created from
@@ -151,8 +151,7 @@
         for key, value in attr_to_add.items():
             volume.add_attr(key, value)
 
-        resp, body = self.post('volumes', str(Document(volume)),
-                               self.headers)
+        resp, body = self.post('volumes', str(Document(volume)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -161,8 +160,7 @@
         put_body = Element("volume", xmlns=XMLNS_11, **kwargs)
 
         resp, body = self.put('volumes/%s' % volume_id,
-                              str(Document(put_body)),
-                              self.headers)
+                              str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -204,7 +202,7 @@
                             mountpoint=mountpoint
                             )
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -213,7 +211,7 @@
         """Detaches a volume from an instance."""
         post_body = Element("os-detach")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -224,7 +222,7 @@
                             image_name=image_name,
                             disk_format=disk_format)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -233,7 +231,7 @@
         post_body = Element("os-extend",
                             new_size=extend_size)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -244,7 +242,7 @@
                             status=status
                             )
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -253,7 +251,7 @@
         """Volume Begin Detaching."""
         post_body = Element("os-begin_detaching")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -262,7 +260,7 @@
         """Volume Roll Detaching."""
         post_body = Element("os-roll_detaching")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -271,7 +269,7 @@
         """Reserves a volume."""
         post_body = Element("os-reserve")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -280,27 +278,26 @@
         """Restore a reserved volume ."""
         post_body = Element("os-unreserve")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
 
-    def create_volume_transfer(self, vol_id, display_name=None):
+    def create_volume_transfer(self, vol_id, name=None):
         """Create a volume transfer."""
         post_body = Element("transfer",
                             volume_id=vol_id)
-        if display_name:
-            post_body.add_attr('name', display_name)
+        if name:
+            post_body.add_attr('name', name)
         resp, body = self.post('os-volume-transfer',
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
     def get_volume_transfer(self, transfer_id):
         """Returns the details of a volume transfer."""
         url = "os-volume-transfer/%s" % str(transfer_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -310,7 +307,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
@@ -334,7 +331,7 @@
         """Accept a volume transfer."""
         post_body = Element("accept", auth_key=transfer_auth_key)
         url = 'os-volume-transfer/%s/accept' % transfer_id
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -343,7 +340,7 @@
         post_body = Element("os-update_readonly_flag",
                             readonly=readonly)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -352,7 +349,7 @@
         """Force Delete Volume."""
         post_body = Element("os-force_delete")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -376,15 +373,14 @@
         """Create metadata for the volume."""
         post_body = self._metadata_body(metadata)
         resp, body = self.post('volumes/%s/metadata' % volume_id,
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
     def get_volume_metadata(self, volume_id):
         """Get metadata of the volume."""
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -392,7 +388,7 @@
         """Update metadata for the volume."""
         put_body = self._metadata_body(metadata)
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -402,7 +398,7 @@
             put_body = Element('meta', key=k)
             put_body.append(Text(v))
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
diff --git a/tempest/services/volume/xml/admin/volume_hosts_client.py b/tempest/services/volume/xml/admin/volume_hosts_client.py
index 7278fd9..59652fa 100644
--- a/tempest/services/volume/xml/admin/volume_hosts_client.py
+++ b/tempest/services/volume/xml/admin/volume_hosts_client.py
@@ -67,6 +67,6 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_array(etree.fromstring(body))
         return resp, body
diff --git a/tempest/services/volume/xml/admin/volume_types_client.py b/tempest/services/volume/xml/admin/volume_types_client.py
index 29ba431..802d27a 100644
--- a/tempest/services/volume/xml/admin/volume_types_client.py
+++ b/tempest/services/volume/xml/admin/volume_types_client.py
@@ -72,7 +72,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volume_types = []
         if body is not None:
@@ -83,7 +83,7 @@
     def get_volume_type(self, type_id):
         """Returns the details of a single volume_type."""
         url = "types/%s" % str(type_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         return resp, self._parse_volume_type(body)
 
@@ -108,8 +108,7 @@
                 spec.append(Text(value))
                 _extra_specs.append(spec)
 
-        resp, body = self.post('types', str(Document(vol_type)),
-                               self.headers)
+        resp, body = self.post('types', str(Document(vol_type)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -124,7 +123,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         extra_specs = []
         if body is not None:
@@ -136,7 +135,7 @@
         """Returns the details of a single volume_type extra spec."""
         url = "types/%s/extra_specs/%s" % (str(vol_type_id),
                                            str(extra_spec_name))
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         return resp, self._parse_volume_type_extra_specs(body)
 
@@ -160,8 +159,7 @@
         else:
             extra_specs = None
 
-        resp, body = self.post(url, str(Document(extra_specs)),
-                               self.headers)
+        resp, body = self.post(url, str(Document(extra_specs)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -190,8 +188,7 @@
                 spec.append(Text(value))
                 extra_specs.append(spec)
 
-        resp, body = self.put(url, str(Document(extra_specs)),
-                              self.headers)
+        resp, body = self.put(url, str(Document(extra_specs)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
diff --git a/tempest/services/volume/xml/extensions_client.py b/tempest/services/volume/xml/extensions_client.py
index 21e1d04..03743a6 100644
--- a/tempest/services/volume/xml/extensions_client.py
+++ b/tempest/services/volume/xml/extensions_client.py
@@ -36,6 +36,6 @@
 
     def list_extensions(self):
         url = 'extensions'
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_array(etree.fromstring(body))
         return resp, body
diff --git a/tempest/services/volume/xml/snapshots_client.py b/tempest/services/volume/xml/snapshots_client.py
index 4f066a6..9abe042 100644
--- a/tempest/services/volume/xml/snapshots_client.py
+++ b/tempest/services/volume/xml/snapshots_client.py
@@ -47,7 +47,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         snapshots = []
         for snap in body:
@@ -61,7 +61,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         snapshots = []
         for snap in body:
@@ -71,7 +71,7 @@
     def get_snapshot(self, snapshot_id):
         """Returns the details of a single snapshot."""
         url = "snapshots/%s" % str(snapshot_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         return resp, xml_to_json(body)
 
@@ -86,8 +86,7 @@
         snapshot = Element("snapshot", xmlns=XMLNS_11, volume_id=volume_id)
         for key, value in kwargs.items():
             snapshot.add_attr(key, value)
-        resp, body = self.post('snapshots', str(Document(snapshot)),
-                               self.headers)
+        resp, body = self.post('snapshots', str(Document(snapshot)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -96,8 +95,7 @@
         put_body = Element("snapshot", xmlns=XMLNS_11, **kwargs)
 
         resp, body = self.put('snapshots/%s' % snapshot_id,
-                              str(Document(put_body)),
-                              self.headers)
+                              str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -155,7 +153,7 @@
                             status=status
                             )
         url = 'snapshots/%s/action' % str(snapshot_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -167,7 +165,7 @@
                             progress=progress
                             )
         url = 'snapshots/%s/action' % str(snapshot_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -191,15 +189,14 @@
         """Create metadata for the snapshot."""
         post_body = self._metadata_body(metadata)
         resp, body = self.post('snapshots/%s/metadata' % snapshot_id,
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
     def get_snapshot_metadata(self, snapshot_id):
         """Get metadata of the snapshot."""
         url = "snapshots/%s/metadata" % str(snapshot_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -207,7 +204,7 @@
         """Update metadata for the snapshot."""
         put_body = self._metadata_body(metadata)
         url = "snapshots/%s/metadata" % str(snapshot_id)
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -217,7 +214,7 @@
             put_body = Element('meta', key=k)
             put_body.append(Text(v))
         url = "snapshots/%s/metadata/%s" % (str(snapshot_id), str(id))
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -230,7 +227,7 @@
         """Force Delete Snapshot."""
         post_body = Element("os-force_delete")
         url = 'snapshots/%s/action' % str(snapshot_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
diff --git a/tempest/services/volume/xml/volumes_client.py b/tempest/services/volume/xml/volumes_client.py
index deb56fd..2b500ae 100644
--- a/tempest/services/volume/xml/volumes_client.py
+++ b/tempest/services/volume/xml/volumes_client.py
@@ -87,7 +87,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
@@ -103,7 +103,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
@@ -115,7 +115,7 @@
     def get_volume(self, volume_id):
         """Returns the details of a single volume."""
         url = "volumes/%s" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_volume(etree.fromstring(body))
         body = self._check_if_bootable(body)
         return resp, body
@@ -151,8 +151,7 @@
         for key, value in attr_to_add.items():
             volume.add_attr(key, value)
 
-        resp, body = self.post('volumes', str(Document(volume)),
-                               self.headers)
+        resp, body = self.post('volumes', str(Document(volume)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -161,8 +160,7 @@
         put_body = Element("volume", xmlns=XMLNS_11, **kwargs)
 
         resp, body = self.put('volumes/%s' % volume_id,
-                              str(Document(put_body)),
-                              self.headers)
+                              str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
@@ -204,7 +202,7 @@
                             mountpoint=mountpoint
                             )
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -213,7 +211,7 @@
         """Detaches a volume from an instance."""
         post_body = Element("os-detach")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -224,7 +222,7 @@
                             image_name=image_name,
                             disk_format=disk_format)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -233,7 +231,7 @@
         post_body = Element("os-extend",
                             new_size=extend_size)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -244,7 +242,7 @@
                             status=status
                             )
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -253,7 +251,7 @@
         """Volume Begin Detaching."""
         post_body = Element("os-begin_detaching")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -262,7 +260,7 @@
         """Volume Roll Detaching."""
         post_body = Element("os-roll_detaching")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -271,7 +269,7 @@
         """Reserves a volume."""
         post_body = Element("os-reserve")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -280,7 +278,7 @@
         """Restore a reserved volume ."""
         post_body = Element("os-unreserve")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -292,15 +290,14 @@
         if display_name:
             post_body.add_attr('name', display_name)
         resp, body = self.post('os-volume-transfer',
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
     def get_volume_transfer(self, transfer_id):
         """Returns the details of a volume transfer."""
         url = "os-volume-transfer/%s" % str(transfer_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -310,7 +307,7 @@
         if params:
             url += '?%s' % urllib.urlencode(params)
 
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = etree.fromstring(body)
         volumes = []
         if body is not None:
@@ -334,7 +331,7 @@
         """Accept a volume transfer."""
         post_body = Element("accept", auth_key=transfer_auth_key)
         url = 'os-volume-transfer/%s/accept' % transfer_id
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         volume = xml_to_json(etree.fromstring(body))
         return resp, volume
 
@@ -343,7 +340,7 @@
         post_body = Element("os-update_readonly_flag",
                             readonly=readonly)
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -352,7 +349,7 @@
         """Force Delete Volume."""
         post_body = Element("os-force_delete")
         url = 'volumes/%s/action' % str(volume_id)
-        resp, body = self.post(url, str(Document(post_body)), self.headers)
+        resp, body = self.post(url, str(Document(post_body)))
         if body:
             body = xml_to_json(etree.fromstring(body))
         return resp, body
@@ -376,15 +373,14 @@
         """Create metadata for the volume."""
         post_body = self._metadata_body(metadata)
         resp, body = self.post('volumes/%s/metadata' % volume_id,
-                               str(Document(post_body)),
-                               self.headers)
+                               str(Document(post_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
     def get_volume_metadata(self, volume_id):
         """Get metadata of the volume."""
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.get(url, self.headers)
+        resp, body = self.get(url)
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -392,7 +388,7 @@
         """Update metadata for the volume."""
         put_body = self._metadata_body(metadata)
         url = "volumes/%s/metadata" % str(volume_id)
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = self._parse_key_value(etree.fromstring(body))
         return resp, body
 
@@ -402,7 +398,7 @@
             put_body = Element('meta', key=k)
             put_body.append(Text(v))
         url = "volumes/%s/metadata/%s" % (str(volume_id), str(id))
-        resp, body = self.put(url, str(Document(put_body)), self.headers)
+        resp, body = self.put(url, str(Document(put_body)))
         body = xml_to_json(etree.fromstring(body))
         return resp, body
 
diff --git a/tempest/test.py b/tempest/test.py
index dcba226..253e946 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -149,6 +149,8 @@
             else:
                 skip = True
             if "bug" in kwargs and skip is True:
+                if not kwargs['bug'].isdigit():
+                    raise ValueError('bug must be a valid bug number')
                 msg = "Skipped until Bug: %s is resolved." % kwargs["bug"]
                 raise testtools.TestCase.skipException(msg)
             return f(self, *func_args, **func_kwargs)
diff --git a/tempest/tests/test_decorators.py b/tempest/tests/test_decorators.py
index 7fb38ff..88920dc 100644
--- a/tempest/tests/test_decorators.py
+++ b/tempest/tests/test_decorators.py
@@ -148,21 +148,21 @@
             self.assertEqual(TestFoo('test_bar').test_bar(), 0)
 
     def test_skip_because_bug(self):
-        self._test_skip_because_helper(bug='critical_bug')
+        self._test_skip_because_helper(bug='12345')
 
     def test_skip_because_bug_and_interface_match(self):
-        self._test_skip_because_helper(bug='critical_bug', interface='json')
+        self._test_skip_because_helper(bug='12346', interface='json')
 
     def test_skip_because_bug_interface_not_match(self):
         self._test_skip_because_helper(expected_to_skip=False,
-                                       bug='critical_bug', interface='xml')
+                                       bug='12347', interface='xml')
 
     def test_skip_because_bug_and_condition_true(self):
-        self._test_skip_because_helper(bug='critical_bug', condition=True)
+        self._test_skip_because_helper(bug='12348', condition=True)
 
     def test_skip_because_bug_and_condition_false(self):
         self._test_skip_because_helper(expected_to_skip=False,
-                                       bug='critical_bug', condition=False)
+                                       bug='12349', condition=False)
 
     def test_skip_because_bug_condition_false_and_interface_match(self):
         """
@@ -170,7 +170,7 @@
         passed.
         """
         self._test_skip_because_helper(expected_to_skip=False,
-                                       bug='critical_bug', condition=False,
+                                       bug='12350', condition=False,
                                        interface='json')
 
     def test_skip_because_bug_condition_true_and_interface_not_match(self):
@@ -178,7 +178,7 @@
         Assure that only condition will be evaluated if both parameters are
         passed.
         """
-        self._test_skip_because_helper(bug='critical_bug', condition=True,
+        self._test_skip_because_helper(bug='12351', condition=True,
                                        interface='xml')
 
     def test_skip_because_bug_without_bug_never_skips(self):
@@ -188,6 +188,11 @@
         self._test_skip_because_helper(expected_to_skip=False,
                                        interface='json')
 
+    def test_skip_because_invalid_bug_number(self):
+        """Raise ValueError if with an invalid bug number"""
+        self.assertRaises(ValueError, self._test_skip_because_helper,
+                          bug='critical_bug')
+
 
 class TestRequiresExtDecorator(BaseDecoratorsTest):
     def setUp(self):