diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index 65797e9..dae4709 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -12,12 +12,16 @@
 #    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 testtools
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest import exceptions
 from tempest import test
 
+CONF = config.CONF
+
 
 class ServerRescueNegativeTestJSON(base.BaseV2ComputeTest):
 
@@ -67,6 +71,8 @@
         self.assertEqual(202, resp.status)
         self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
 
+    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
+                          'Pause is not available.')
     @test.attr(type=['negative', 'gate'])
     def test_rescue_paused_instance(self):
         # Rescue a paused server
diff --git a/tempest/api/compute/v3/servers/test_delete_server.py b/tempest/api/compute/v3/servers/test_delete_server.py
index 8f85557..add69ab 100644
--- a/tempest/api/compute/v3/servers/test_delete_server.py
+++ b/tempest/api/compute/v3/servers/test_delete_server.py
@@ -56,6 +56,8 @@
         self.assertEqual('204', resp['status'])
         self.client.wait_for_server_termination(server['id'])
 
+    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
+                          'Pause is not available.')
     @test.attr(type='gate')
     def test_delete_server_while_in_pause_state(self):
         # Delete a server while it's VM state is Pause
diff --git a/tempest/api/compute/v3/servers/test_server_actions.py b/tempest/api/compute/v3/servers/test_server_actions.py
index c377c30..ab1ccc4 100644
--- a/tempest/api/compute/v3/servers/test_server_actions.py
+++ b/tempest/api/compute/v3/servers/test_server_actions.py
@@ -329,6 +329,8 @@
 
         self.wait_for(self._get_output)
 
+    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
+                          'Pause is not available.')
     @test.attr(type='gate')
     def test_pause_unpause_server(self):
         resp, server = self.client.pause_server(self.server_id)
diff --git a/tempest/api/compute/v3/servers/test_server_rescue_negative.py b/tempest/api/compute/v3/servers/test_server_rescue_negative.py
index 08fb127..eb6bcdd 100644
--- a/tempest/api/compute/v3/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/v3/servers/test_server_rescue_negative.py
@@ -12,12 +12,16 @@
 #    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 testtools
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest import config
 from tempest import exceptions
 from tempest import test
 
+CONF = config.CONF
+
 
 class ServerRescueNegativeV3Test(base.BaseV3ComputeTest):
 
@@ -66,6 +70,8 @@
         self.assertEqual(202, resp.status)
         self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
 
+    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
+                          'Pause is not available.')
     @test.attr(type=['negative', 'gate'])
     def test_rescue_paused_instance(self):
         # Rescue a paused server
diff --git a/tempest/api/compute/v3/servers/test_servers_negative.py b/tempest/api/compute/v3/servers/test_servers_negative.py
index 586a52a..c1d1935 100644
--- a/tempest/api/compute/v3/servers/test_servers_negative.py
+++ b/tempest/api/compute/v3/servers/test_servers_negative.py
@@ -115,6 +115,8 @@
         self.assertRaises(exceptions.NotFound, self.client.reboot,
                           nonexistent_server, 'SOFT')
 
+    @testtools.skipUnless(CONF.compute_feature_enabled.pause,
+                          'Pause is not available.')
     @test.attr(type=['negative', 'gate'])
     def test_pause_paused_server(self):
         # Pause a paused server.
diff --git a/tempest/api/network/admin/test_load_balancer_admin_actions.py b/tempest/api/network/admin/test_load_balancer_admin_actions.py
index 6bcc118..bc7f1d6 100644
--- a/tempest/api/network/admin/test_load_balancer_admin_actions.py
+++ b/tempest/api/network/admin/test_load_balancer_admin_actions.py
@@ -43,6 +43,8 @@
             tenant_name)['id']
         cls.network = cls.create_network()
         cls.subnet = cls.create_subnet(cls.network)
+        cls.pool = cls.create_pool(data_utils.rand_name('pool-'),
+                                   "ROUND_ROBIN", "HTTP", cls.subnet)
 
     @test.attr(type='smoke')
     def test_create_vip_as_admin_for_another_tenant(self):
@@ -102,6 +104,17 @@
         self.assertIsNotNone(pool['id'])
         self.assertEqual(self.tenant_id, pool['tenant_id'])
 
+    @test.attr(type='smoke')
+    def test_create_member_from_admin_user_other_tenant(self):
+        resp, body = self.admin_client.create_member(
+            address="10.0.9.47", protocol_port=80, pool_id=self.pool['id'],
+            tenant_id=self.tenant_id)
+        self.assertEqual('201', resp['status'])
+        member = body['member']
+        self.addCleanup(self.admin_client.delete_member, member['id'])
+        self.assertIsNotNone(member['id'])
+        self.assertEqual(self.tenant_id, member['tenant_id'])
+
 
 class LoadBalancerAdminTestXML(LoadBalancerAdminTestJSON):
     _interface = 'xml'
diff --git a/tempest/api/network/test_load_balancer.py b/tempest/api/network/test_load_balancer.py
index 3ab015e..673fc47 100644
--- a/tempest/api/network/test_load_balancer.py
+++ b/tempest/api/network/test_load_balancer.py
@@ -434,6 +434,40 @@
             self.assertEqual(member_id, body['member']['id'])
             self.assertIsNotNone(body['member']['admin_state_up'])
 
+    @test.attr(type='smoke')
+    def test_update_pool_related_to_member(self):
+        # Create new pool
+        resp, body = self.client.create_pool(
+            name=data_utils.rand_name("pool-"),
+            lb_method='ROUND_ROBIN',
+            protocol='HTTP',
+            subnet_id=self.subnet['id'])
+        self.assertEqual('201', resp['status'])
+        new_pool = body['pool']
+        self.addCleanup(self.client.delete_pool, new_pool['id'])
+        # Update member with new pool's id
+        resp, body = self.client.update_member(self.member['id'],
+                                               pool_id=new_pool['id'])
+        self.assertEqual('200', resp['status'])
+        # Confirm with show that pool_id change
+        resp, body = self.client.show_member(self.member['id'])
+        member = body['member']
+        self.assertEqual(member['pool_id'], new_pool['id'])
+        # Update member with old pool id, this is needed for clean up
+        resp, body = self.client.update_member(self.member['id'],
+                                               pool_id=self.pool['id'])
+        self.assertEqual('200', resp['status'])
+
+    @test.attr(type='smoke')
+    def test_update_member_weight(self):
+        resp, _ = self.client.update_member(self.member['id'],
+                                            weight=2)
+        self.assertEqual('200', resp['status'])
+        resp, body = self.client.show_member(self.member['id'])
+        self.assertEqual('200', resp['status'])
+        member = body['member']
+        self.assertEqual(2, member['weight'])
+
 
 class LoadBalancerTestXML(LoadBalancerTestJSON):
     _interface = 'xml'
diff --git a/tempest/api/network/test_networks.py b/tempest/api/network/test_networks.py
index 0175de7..de44f4d 100644
--- a/tempest/api/network/test_networks.py
+++ b/tempest/api/network/test_networks.py
@@ -37,15 +37,9 @@
         create a subnet for a tenant
         list tenant's subnets
         show a tenant subnet details
-        port create
-        port delete
-        port list
-        port show
-        port update
         network update
         subnet update
         delete a network also deletes its subnets
-        create a port with no IP address associated with it
 
         All subnet tests are run once with ipv4 and once with ipv6.
 
@@ -115,13 +109,13 @@
     @test.attr(type='smoke')
     def test_show_network_fields(self):
         # Verify specific fields of a network
-        field_list = [('fields', 'id'), ('fields', 'name'), ]
+        fields = ['id', 'name']
         resp, body = self.client.show_network(self.network['id'],
-                                              field_list=field_list)
+                                              fields=fields)
         self.assertEqual('200', resp['status'])
         network = body['network']
-        self.assertEqual(len(network), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(network.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(network[field_name], self.network[field_name])
 
     @test.attr(type='smoke')
@@ -136,13 +130,13 @@
     @test.attr(type='smoke')
     def test_list_networks_fields(self):
         # Verify specific fields of the networks
-        resp, body = self.client.list_networks(fields='id')
+        fields = ['id', 'name']
+        resp, body = self.client.list_networks(fields=fields)
         self.assertEqual('200', resp['status'])
         networks = body['networks']
         self.assertNotEmpty(networks, "Network list returned is empty")
         for network in networks:
-            self.assertEqual(len(network), 1)
-            self.assertIn('id', network)
+            self.assertEqual(sorted(network.keys()), sorted(fields))
 
     @test.attr(type='smoke')
     def test_show_subnet(self):
@@ -158,13 +152,13 @@
     @test.attr(type='smoke')
     def test_show_subnet_fields(self):
         # Verify specific fields of a subnet
-        field_list = [('fields', 'id'), ('fields', 'cidr'), ]
+        fields = ['id', 'network_id']
         resp, body = self.client.show_subnet(self.subnet['id'],
-                                             field_list=field_list)
+                                             fields=fields)
         self.assertEqual('200', resp['status'])
         subnet = body['subnet']
-        self.assertEqual(len(subnet), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(subnet.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(subnet[field_name], self.subnet[field_name])
 
     @test.attr(type='smoke')
@@ -179,13 +173,13 @@
     @test.attr(type='smoke')
     def test_list_subnets_fields(self):
         # Verify specific fields of subnets
-        resp, body = self.client.list_subnets(fields='id')
+        fields = ['id', 'network_id']
+        resp, body = self.client.list_subnets(fields=fields)
         self.assertEqual('200', resp['status'])
         subnets = body['subnets']
         self.assertNotEmpty(subnets, "Subnet list returned is empty")
         for subnet in subnets:
-            self.assertEqual(len(subnet), 1)
-            self.assertIn('id', subnet)
+            self.assertEqual(sorted(subnet.keys()), sorted(fields))
 
     def _try_delete_network(self, net_id):
         # delete network, if it exists
@@ -222,32 +216,6 @@
         # it from the list.
         self.subnets.pop()
 
-    @test.attr(type='smoke')
-    def test_create_port_with_no_ip(self):
-        # For this test create a new network - do not use any previously
-        # created networks.
-        name = data_utils.rand_name('network-nosubnet-')
-        resp, body = self.client.create_network(name=name)
-        self.assertEqual('201', resp['status'])
-        network = body['network']
-        net_id = network['id']
-        self.networks.append(network)
-
-        # Now create a port for this network - without creating any
-        # subnets for this network - this ensures no IP for the port
-        resp, body = self.client.create_port(network_id=net_id)
-        self.assertEqual('201', resp['status'])
-        port = body['port']
-        port_id = port['id']
-        self.addCleanup(self.client.delete_port, port_id)
-
-        # Verify that the port does not have any IP address
-        resp, body = self.client.show_port(port_id)
-        self.assertEqual('200', resp['status'])
-        port_resp = body['port']
-        self.assertEqual(port_id, port_resp['id'])
-        self.assertEqual(port_resp['fixed_ips'], [])
-
 
 class NetworksTestXML(NetworksTestJSON):
     _interface = 'xml'
diff --git a/tempest/api/network/test_ports.py b/tempest/api/network/test_ports.py
index bda5b2b..68f617b 100644
--- a/tempest/api/network/test_ports.py
+++ b/tempest/api/network/test_ports.py
@@ -26,6 +26,16 @@
 class PortsTestJSON(base.BaseNetworkTest):
     _interface = 'json'
 
+    """
+    Test the following operations for ports:
+
+        port create
+        port delete
+        port list
+        port show
+        port update
+    """
+
     @classmethod
     @test.safe_setup
     def setUpClass(cls):
@@ -80,17 +90,18 @@
         self.assertEqual(self.port['network_id'], port['network_id'])
         self.assertEqual(self.port['security_groups'],
                          port['security_groups'])
+        self.assertEqual(port['fixed_ips'], [])
 
     @test.attr(type='smoke')
     def test_show_port_fields(self):
         # Verify specific fields of a port
-        field_list = [('fields', 'id'), ]
+        fields = ['id', 'mac_address']
         resp, body = self.client.show_port(self.port['id'],
-                                           field_list=field_list)
+                                           fields=fields)
         self.assertEqual('200', resp['status'])
         port = body['port']
-        self.assertEqual(len(port), len(field_list))
-        for label, field_name in field_list:
+        self.assertEqual(sorted(port.keys()), sorted(fields))
+        for field_name in fields:
             self.assertEqual(port[field_name], self.port[field_name])
 
     @test.attr(type='smoke')
@@ -126,14 +137,14 @@
     @test.attr(type='smoke')
     def test_list_ports_fields(self):
         # Verify specific fields of ports
-        resp, body = self.client.list_ports(fields='id')
+        fields = ['id', 'mac_address']
+        resp, body = self.client.list_ports(fields=fields)
         self.assertEqual('200', resp['status'])
         ports = body['ports']
         self.assertNotEmpty(ports, "Port list returned is empty")
         # Asserting the fields returned are correct
         for port in ports:
-            self.assertEqual(len(port), 1)
-            self.assertIn('id', port)
+            self.assertEqual(sorted(fields), sorted(port.keys()))
 
 
 class PortsTestXML(PortsTestJSON):
diff --git a/tempest/api/object_storage/test_object_services.py b/tempest/api/object_storage/test_object_services.py
index b057698..06e63a4 100644
--- a/tempest/api/object_storage/test_object_services.py
+++ b/tempest/api/object_storage/test_object_services.py
@@ -14,8 +14,10 @@
 #    under the License.
 
 import hashlib
+import random
 import re
 from six import moves
+import time
 
 from tempest.api.object_storage import base
 from tempest.common import custom_matchers
@@ -308,10 +310,7 @@
         # retrieve object's data (in response body)
 
         # create object
-        object_name = data_utils.rand_name(name='TestObject')
-        data = data_utils.arbitrary_string()
-        resp, _ = self.object_client.create_object(self.container_name,
-                                                   object_name, data)
+        object_name, data = self._create_object()
         # get object
         resp, body = self.object_client.get_object(self.container_name,
                                                    object_name)
@@ -321,6 +320,183 @@
         self.assertEqual(body, data)
 
     @test.attr(type='smoke')
+    def test_get_object_with_metadata(self):
+        # get object with metadata
+        object_name = data_utils.rand_name(name='TestObject')
+        data = data_utils.arbitrary_string()
+        metadata = {'X-Object-Meta-test-meta': 'Meta'}
+        self.object_client.create_object(self.container_name,
+                                         object_name,
+                                         data,
+                                         metadata=metadata)
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=None)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertIn('x-object-meta-test-meta', resp)
+        self.assertEqual(resp['x-object-meta-test-meta'], 'Meta')
+        self.assertEqual(body, data)
+
+    @test.attr(type='smoke')
+    def test_get_object_with_range(self):
+        # get object with range
+        object_name = data_utils.rand_name(name='TestObject')
+        data = data_utils.arbitrary_string(100)
+        self.object_client.create_object(self.container_name,
+                                         object_name,
+                                         data,
+                                         metadata=None)
+        rand_num = random.randint(3, len(data) - 1)
+        metadata = {'Range': 'bytes=%s-%s' % (rand_num - 3, rand_num - 1)}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data[rand_num - 3: rand_num])
+
+    @test.attr(type='smoke')
+    def test_get_object_with_x_object_manifest(self):
+        # get object with x_object_manifest
+
+        # uploading segments
+        object_name, data_segments = self._upload_segments()
+        # creating a manifest file
+        object_prefix = '%s/%s' % (self.container_name, object_name)
+        metadata = {'X-Object-Manifest': object_prefix}
+        data_empty = ''
+        resp, body = self.object_client.create_object(
+            self.container_name,
+            object_name,
+            data_empty,
+            metadata=metadata)
+
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=None)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+
+        # Check only the existence of common headers with custom matcher
+        self.assertThat(resp, custom_matchers.ExistsAllResponseHeaders(
+                        'Object', 'GET'))
+        self.assertIn('x-object-manifest', resp)
+
+        # Etag value of a large object is enclosed in double-quotations.
+        # This is a special case, therefore the formats of response headers
+        # are checked without a custom matcher.
+        self.assertTrue(resp['etag'].startswith('\"'))
+        self.assertTrue(resp['etag'].endswith('\"'))
+        self.assertTrue(resp['etag'].strip('\"').isalnum())
+        self.assertTrue(re.match("^\d+\.?\d*\Z", resp['x-timestamp']))
+        self.assertNotEqual(len(resp['content-type']), 0)
+        self.assertTrue(re.match("^tx[0-9a-f]*-[0-9a-f]*$",
+                                 resp['x-trans-id']))
+        self.assertNotEqual(len(resp['date']), 0)
+        self.assertEqual(resp['accept-ranges'], 'bytes')
+        self.assertEqual(resp['x-object-manifest'],
+                         '%s/%s' % (self.container_name, object_name))
+
+        self.assertEqual(''.join(data_segments), body)
+
+    @test.attr(type='smoke')
+    def test_get_object_with_if_match(self):
+        # get object with if_match
+        object_name = data_utils.rand_name(name='TestObject')
+        data = data_utils.arbitrary_string(10)
+        create_md5 = hashlib.md5(data).hexdigest()
+        create_metadata = {'Etag': create_md5}
+        self.object_client.create_object(self.container_name,
+                                         object_name,
+                                         data,
+                                         metadata=create_metadata)
+
+        list_metadata = {'If-Match': create_md5}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=list_metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data)
+
+    @test.attr(type='smoke')
+    def test_get_object_with_if_modified_since(self):
+        # get object with if_modified_since
+        object_name = data_utils.rand_name(name='TestObject')
+        data = data_utils.arbitrary_string()
+        time_now = time.time()
+        self.object_client.create_object(self.container_name,
+                                         object_name,
+                                         data,
+                                         metadata=None)
+
+        http_date = time.ctime(time_now - 86400)
+        list_metadata = {'If-Modified-Since': http_date}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=list_metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data)
+
+    def test_get_object_with_if_none_match(self):
+        # get object with if_none_match
+        object_name = data_utils.rand_name(name='TestObject')
+        data = data_utils.arbitrary_string(10)
+        create_md5 = hashlib.md5(data).hexdigest()
+        create_metadata = {'Etag': create_md5}
+        self.object_client.create_object(self.container_name,
+                                         object_name,
+                                         data,
+                                         metadata=create_metadata)
+
+        list_data = data_utils.arbitrary_string(15)
+        list_md5 = hashlib.md5(list_data).hexdigest()
+        list_metadata = {'If-None-Match': list_md5}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=list_metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data)
+
+    @test.attr(type='smoke')
+    def test_get_object_with_if_unmodified_since(self):
+        # get object with if_unmodified_since
+        object_name, data = self._create_object()
+
+        time_now = time.time()
+        http_date = time.ctime(time_now + 86400)
+        list_metadata = {'If-Unmodified-Since': http_date}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=list_metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data)
+
+    @test.attr(type='smoke')
+    def test_get_object_with_x_newest(self):
+        # get object with x_newest
+        object_name, data = self._create_object()
+
+        list_metadata = {'X-Newest': 'true'}
+        resp, body = self.object_client.get_object(
+            self.container_name,
+            object_name,
+            metadata=list_metadata)
+        self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
+        self.assertHeaders(resp, 'Object', 'GET')
+        self.assertEqual(body, data)
+
+    @test.attr(type='smoke')
     def test_copy_object_in_same_container(self):
         # create source object
         src_object_name = data_utils.rand_name(name='SrcObject')
@@ -498,10 +674,7 @@
         # Make a conditional request for an object using the If-None-Match
         # header, it should get downloaded only if the local file is different,
         # otherwise the response code should be 304 Not Modified
-        object_name = data_utils.rand_name(name='TestObject')
-        data = data_utils.arbitrary_string()
-        self.object_client.create_object(self.container_name,
-                                         object_name, data)
+        object_name, data = self._create_object()
         # local copy is identical, no download
         md5 = hashlib.md5(data).hexdigest()
         headers = {'If-None-Match': md5}
diff --git a/tempest/api/orchestration/base.py b/tempest/api/orchestration/base.py
index 7656ff3..c27bedf 100644
--- a/tempest/api/orchestration/base.py
+++ b/tempest/api/orchestration/base.py
@@ -101,9 +101,8 @@
 
     @classmethod
     def load_template(cls, name, ext='yaml'):
-        loc = ["tempest", "api", "orchestration",
-               "stacks", "templates", "%s.%s" % (name, ext)]
-        fullpath = os.path.join(*loc)
+        loc = ["stacks", "templates", "%s.%s" % (name, ext)]
+        fullpath = os.path.join(os.path.dirname(__file__), *loc)
 
         with open(fullpath, "r") as f:
             content = f.read()
diff --git a/tempest/api_schema/compute/aggregates.py b/tempest/api_schema/compute/aggregates.py
index a70b356..a3ab3c8 100644
--- a/tempest/api_schema/compute/aggregates.py
+++ b/tempest/api_schema/compute/aggregates.py
@@ -12,9 +12,11 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
+import copy
+
 aggregate = {
     'type': 'object',
-    'properties:': {
+    'properties': {
         'availability_zone': {'type': ['string', 'null']},
         'created_at': {'type': 'string'},
         'deleted': {'type': 'boolean'},
@@ -56,3 +58,9 @@
 }
 
 aggregate_set_metadata = get_aggregate
+# The 'updated_at' attribute of 'update_aggregate' can't be null.
+update_aggregate = copy.deepcopy(get_aggregate)
+update_aggregate['response_body']['properties']['aggregate']['properties'][
+    'updated_at'] = {
+        'type': 'string'
+    }
diff --git a/tempest/api_schema/compute/availability_zone.py b/tempest/api_schema/compute/availability_zone.py
new file mode 100644
index 0000000..c1abc64
--- /dev/null
+++ b/tempest/api_schema/compute/availability_zone.py
@@ -0,0 +1,37 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+# NOTE: This is the detail information for "get az detail" API.
+# The information is the same between v2 and v3 APIs.
+detail = {
+    'type': 'object',
+    'patternProperties': {
+        # NOTE: Here is for a hostname
+        '^[a-zA-Z0-9-_.]+$': {
+            'type': 'object',
+            'patternProperties': {
+                # NOTE: Here is for a service name
+                '^.*$': {
+                    'type': 'object',
+                    'properties': {
+                        'available': {'type': 'boolean'},
+                        'active': {'type': 'boolean'},
+                        'updated_at': {'type': 'string'}
+                    },
+                    'required': ['available', 'active', 'updated_at']
+                }
+            }
+        }
+    }
+}
diff --git a/tempest/api_schema/compute/flavors_extra_specs.py b/tempest/api_schema/compute/flavors_extra_specs.py
new file mode 100644
index 0000000..4003d36
--- /dev/null
+++ b/tempest/api_schema/compute/flavors_extra_specs.py
@@ -0,0 +1,39 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+flavor_extra_specs = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'extra_specs': {
+                'type': 'object',
+                'patternProperties': {
+                    '^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
+                }
+            }
+        },
+        'required': ['extra_specs']
+    }
+}
+
+flavor_extra_specs_key = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'patternProperties': {
+            '^[a-zA-Z0-9_\-\. :]+$': {'type': 'string'}
+        }
+    }
+}
diff --git a/tempest/api_schema/compute/interfaces.py b/tempest/api_schema/compute/interfaces.py
new file mode 100644
index 0000000..1e15c18
--- /dev/null
+++ b/tempest/api_schema/compute/interfaces.py
@@ -0,0 +1,17 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+delete_interface = {
+    'status_code': [202]
+}
diff --git a/tempest/api_schema/compute/servers.py b/tempest/api_schema/compute/servers.py
index 5eb5ecb..a273abb 100644
--- a/tempest/api_schema/compute/servers.py
+++ b/tempest/api_schema/compute/servers.py
@@ -43,3 +43,7 @@
         'required': ['console']
     }
 }
+
+delete_server = {
+    'status_code': [204],
+}
diff --git a/tempest/api_schema/compute/v2/availability_zone.py b/tempest/api_schema/compute/v2/availability_zone.py
new file mode 100644
index 0000000..d3d2787
--- /dev/null
+++ b/tempest/api_schema/compute/v2/availability_zone.py
@@ -0,0 +1,54 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import copy
+
+from tempest.api_schema.compute import availability_zone as common
+
+
+base = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'availabilityZoneInfo': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'zoneName': {'type': 'string'},
+                        'zoneState': {
+                            'type': 'object',
+                            'properties': {
+                                'available': {'type': 'boolean'}
+                            },
+                            'required': ['available']
+                        },
+                        # NOTE: Here is the difference between detail and
+                        # non-detail.
+                        'hosts': {'type': 'null'}
+                    },
+                    'required': ['zoneName', 'zoneState', 'hosts']
+                }
+            }
+        },
+        'required': ['availabilityZoneInfo']
+    }
+}
+
+get_availability_zone_list = copy.deepcopy(base)
+
+get_availability_zone_list_detail = copy.deepcopy(base)
+get_availability_zone_list_detail['response_body']['properties'][
+    'availabilityZoneInfo']['items']['properties']['hosts'] = common.detail
diff --git a/tempest/api_schema/compute/v2/flavors.py b/tempest/api_schema/compute/v2/flavors.py
index 999ca19..48e6ceb 100644
--- a/tempest/api_schema/compute/v2/flavors.py
+++ b/tempest/api_schema/compute/v2/flavors.py
@@ -31,3 +31,7 @@
                           'OS-FLV-EXT-DATA:ephemeral': {'type': 'integer'}})
 # 'OS-FLV-DISABLED', 'os-flavor-access', 'rxtx_factor' and 'OS-FLV-EXT-DATA'
 # are API extensions. So they are not 'required'.
+
+unset_flavor_extra_specs = {
+    'status_code': [200]
+}
diff --git a/tempest/api_schema/compute/v2/servers.py b/tempest/api_schema/compute/v2/servers.py
index 81d2ef7..eed4589 100644
--- a/tempest/api_schema/compute/v2/servers.py
+++ b/tempest/api_schema/compute/v2/servers.py
@@ -66,3 +66,27 @@
         'required': ['virtual_interfaces']
     }
 }
+
+attach_volume = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'volumeAttachment': {
+                'type': 'object',
+                'properties': {
+                    'id': {'type': 'string'},
+                    'device': {'type': 'string'},
+                    'volumeId': {'type': 'string'},
+                    'serverId': {'type': ['integer', 'string']}
+                },
+                'required': ['id', 'device', 'volumeId', 'serverId']
+            }
+        },
+        'required': ['volumeAttachment']
+    }
+}
+
+detach_volume = {
+    'status_code': [202]
+}
diff --git a/tempest/api_schema/compute/v3/availability_zone.py b/tempest/api_schema/compute/v3/availability_zone.py
new file mode 100644
index 0000000..5f36c33
--- /dev/null
+++ b/tempest/api_schema/compute/v3/availability_zone.py
@@ -0,0 +1,53 @@
+# Copyright 2014 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import copy
+
+from tempest.api_schema.compute import availability_zone as common
+
+
+base = {
+    'status_code': [200],
+    'response_body': {
+        'type': 'object',
+        'properties': {
+            'availability_zone_info': {
+                'type': 'array',
+                'items': {
+                    'type': 'object',
+                    'properties': {
+                        'zone_name': {'type': 'string'},
+                        'zone_state': {
+                            'type': 'object',
+                            'properties': {
+                                'available': {'type': 'boolean'}
+                            },
+                            'required': ['available']
+                        },
+                        # NOTE: Here is the difference between detail and
+                        # non-detail
+                        'hosts': {'type': 'null'}
+                    },
+                    'required': ['zone_name', 'zone_state', 'hosts']
+                }
+            }
+        },
+        'required': ['availability_zone_info']
+    }
+}
+
+get_availability_zone_list = copy.deepcopy(base)
+get_availability_zone_list_detail = copy.deepcopy(base)
+get_availability_zone_list_detail['response_body']['properties'][
+    'availability_zone_info']['items']['properties']['hosts'] = common.detail
diff --git a/tempest/api_schema/compute/v3/flavors.py b/tempest/api_schema/compute/v3/flavors.py
index 542d2b1..468658c 100644
--- a/tempest/api_schema/compute/v3/flavors.py
+++ b/tempest/api_schema/compute/v3/flavors.py
@@ -15,6 +15,7 @@
 import copy
 
 from tempest.api_schema.compute import flavors
+from tempest.api_schema.compute import flavors_extra_specs
 
 list_flavors_details = copy.deepcopy(flavors.common_flavor_list_details)
 
@@ -31,3 +32,10 @@
 # So they are not 'required'.
 list_flavors_details['response_body']['properties']['flavors']['items'][
     'required'].extend(['disabled', 'ephemeral'])
+
+set_flavor_extra_specs = copy.deepcopy(flavors_extra_specs.flavor_extra_specs)
+set_flavor_extra_specs['status_code'] = [201]
+
+unset_flavor_extra_specs = {
+    'status_code': [204]
+}
diff --git a/tempest/api_schema/compute/v3/servers.py b/tempest/api_schema/compute/v3/servers.py
index 390962e..f2a4b78 100644
--- a/tempest/api_schema/compute/v3/servers.py
+++ b/tempest/api_schema/compute/v3/servers.py
@@ -42,3 +42,7 @@
         'required': ['server']
     }
 }
+
+attach_detach_volume = {
+    'status_code': [202]
+}
diff --git a/tempest/scenario/test_security_groups_basic_ops.py b/tempest/scenario/test_security_groups_basic_ops.py
index b9ee040..b1b06cc 100644
--- a/tempest/scenario/test_security_groups_basic_ops.py
+++ b/tempest/scenario/test_security_groups_basic_ops.py
@@ -422,11 +422,15 @@
         access_point_ssh = self._connect_to_access_point(tenant)
         mac_addr = access_point_ssh.get_mac_address()
         mac_addr = mac_addr.strip().lower()
-        port_list = self.network_client.list_ports()['ports']
+        # Get the fixed_ips and mac_address fields of all ports. Select
+        # only those two columns to reduce the size of the response.
+        port_list = self.network_client.list_ports(
+            fields=['fixed_ips', 'mac_address'])['ports']
         port_detail_list = [
             (port['fixed_ips'][0]['subnet_id'],
              port['fixed_ips'][0]['ip_address'],
-             port['mac_address'].lower()) for port in port_list
+             port['mac_address'].lower())
+            for port in port_list if port['fixed_ips']
         ]
         server_ip = self._get_server_ip(tenant.access_point)
         subnet_id = tenant.subnet.id
diff --git a/tempest/services/compute/json/aggregates_client.py b/tempest/services/compute/json/aggregates_client.py
index fe67102..54d1252 100644
--- a/tempest/services/compute/json/aggregates_client.py
+++ b/tempest/services/compute/json/aggregates_client.py
@@ -61,6 +61,7 @@
         resp, body = self.put('os-aggregates/%s' % str(aggregate_id), put_body)
 
         body = json.loads(body)
+        self.validate_response(schema.update_aggregate, resp, body)
         return resp, body['aggregate']
 
     def delete_aggregate(self, aggregate_id):
diff --git a/tempest/services/compute/json/availability_zone_client.py b/tempest/services/compute/json/availability_zone_client.py
index 9278d5b..1c067e8 100644
--- a/tempest/services/compute/json/availability_zone_client.py
+++ b/tempest/services/compute/json/availability_zone_client.py
@@ -15,6 +15,7 @@
 
 import json
 
+from tempest.api_schema.compute.v2 import availability_zone as schema
 from tempest.common import rest_client
 from tempest import config
 
@@ -31,9 +32,12 @@
     def get_availability_zone_list(self):
         resp, body = self.get('os-availability-zone')
         body = json.loads(body)
+        self.validate_response(schema.get_availability_zone_list, resp, body)
         return resp, body['availabilityZoneInfo']
 
     def get_availability_zone_list_detail(self):
         resp, body = self.get('os-availability-zone/detail')
         body = json.loads(body)
+        self.validate_response(schema.get_availability_zone_list_detail, resp,
+                               body)
         return resp, body['availabilityZoneInfo']
diff --git a/tempest/services/compute/json/flavors_client.py b/tempest/services/compute/json/flavors_client.py
index 0206b82..65d2657 100644
--- a/tempest/services/compute/json/flavors_client.py
+++ b/tempest/services/compute/json/flavors_client.py
@@ -18,6 +18,8 @@
 
 from tempest.api_schema.compute import flavors as common_schema
 from tempest.api_schema.compute import flavors_access as schema_access
+from tempest.api_schema.compute import flavors_extra_specs \
+    as schema_extra_specs
 from tempest.api_schema.compute.v2 import flavors as v2schema
 from tempest.common import rest_client
 from tempest import config
@@ -99,12 +101,16 @@
         resp, body = self.post('flavors/%s/os-extra_specs' % flavor_id,
                                post_body)
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs,
+                               resp, body)
         return resp, body['extra_specs']
 
     def get_flavor_extra_spec(self, flavor_id):
         """Gets extra Specs details of the mentioned flavor."""
         resp, body = self.get('flavors/%s/os-extra_specs' % flavor_id)
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs,
+                               resp, body)
         return resp, body['extra_specs']
 
     def get_flavor_extra_spec_with_key(self, flavor_id, key):
@@ -112,6 +118,8 @@
         resp, body = self.get('flavors/%s/os-extra_specs/%s' % (str(flavor_id),
                               key))
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs_key,
+                               resp, body)
         return resp, body
 
     def update_flavor_extra_spec(self, flavor_id, key, **kwargs):
@@ -119,12 +127,16 @@
         resp, body = self.put('flavors/%s/os-extra_specs/%s' %
                               (flavor_id, key), json.dumps(kwargs))
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs_key,
+                               resp, body)
         return resp, body
 
     def unset_flavor_extra_spec(self, flavor_id, key):
         """Unsets extra Specs from the mentioned flavor."""
-        return self.delete('flavors/%s/os-extra_specs/%s' % (str(flavor_id),
-                           key))
+        resp, body = self.delete('flavors/%s/os-extra_specs/%s' %
+                                 (str(flavor_id), key))
+        self.validate_response(v2schema.unset_flavor_extra_specs, resp, body)
+        return resp, body
 
     def list_flavor_access(self, flavor_id):
         """Gets flavor access information given the flavor id."""
diff --git a/tempest/services/compute/json/interfaces_client.py b/tempest/services/compute/json/interfaces_client.py
index 9928b94..2f165a2 100644
--- a/tempest/services/compute/json/interfaces_client.py
+++ b/tempest/services/compute/json/interfaces_client.py
@@ -16,6 +16,7 @@
 import json
 import time
 
+from tempest.api_schema.compute import interfaces as common_schema
 from tempest.common import rest_client
 from tempest import config
 from tempest import exceptions
@@ -58,6 +59,7 @@
     def delete_interface(self, server, port_id):
         resp, body = self.delete('servers/%s/os-interface/%s' % (server,
                                                                  port_id))
+        self.validate_response(common_schema.delete_interface, resp, body)
         return resp, body
 
     def wait_for_interface_status(self, server, port_id, status):
diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index cf1dad9..70a950a 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -136,7 +136,9 @@
 
     def delete_server(self, server_id):
         """Deletes the given server."""
-        return self.delete("servers/%s" % str(server_id))
+        resp, body = self.delete("servers/%s" % str(server_id))
+        self.validate_response(common_schema.delete_server, resp, body)
+        return resp, body
 
     def list_servers(self, params=None):
         """Lists all servers for a user."""
@@ -326,12 +328,15 @@
         })
         resp, body = self.post('servers/%s/os-volume_attachments' % server_id,
                                post_body)
+        body = json.loads(body)
+        self.validate_response(schema.attach_volume, resp, body)
         return resp, body
 
     def detach_volume(self, server_id, volume_id):
         """Detaches a volume from a server instance."""
         resp, body = self.delete('servers/%s/os-volume_attachments/%s' %
                                  (server_id, volume_id))
+        self.validate_response(schema.detach_volume, resp, body)
         return resp, body
 
     def add_security_group(self, server_id, name):
diff --git a/tempest/services/compute/v3/json/aggregates_client.py b/tempest/services/compute/v3/json/aggregates_client.py
index 8d7440e..0fc6af9 100644
--- a/tempest/services/compute/v3/json/aggregates_client.py
+++ b/tempest/services/compute/v3/json/aggregates_client.py
@@ -61,6 +61,7 @@
         resp, body = self.put('os-aggregates/%s' % str(aggregate_id), put_body)
 
         body = json.loads(body)
+        self.validate_response(schema.update_aggregate, resp, body)
         return resp, body['aggregate']
 
     def delete_aggregate(self, aggregate_id):
diff --git a/tempest/services/compute/v3/json/availability_zone_client.py b/tempest/services/compute/v3/json/availability_zone_client.py
index bad2de9..bf74e68 100644
--- a/tempest/services/compute/v3/json/availability_zone_client.py
+++ b/tempest/services/compute/v3/json/availability_zone_client.py
@@ -15,6 +15,7 @@
 
 import json
 
+from tempest.api_schema.compute.v3 import availability_zone as schema
 from tempest.common import rest_client
 from tempest import config
 
@@ -31,9 +32,12 @@
     def get_availability_zone_list(self):
         resp, body = self.get('os-availability-zone')
         body = json.loads(body)
+        self.validate_response(schema.get_availability_zone_list, resp, body)
         return resp, body['availability_zone_info']
 
     def get_availability_zone_list_detail(self):
         resp, body = self.get('os-availability-zone/detail')
         body = json.loads(body)
+        self.validate_response(schema.get_availability_zone_list_detail, resp,
+                               body)
         return resp, body['availability_zone_info']
diff --git a/tempest/services/compute/v3/json/flavors_client.py b/tempest/services/compute/v3/json/flavors_client.py
index 189fe3f..602fee2 100644
--- a/tempest/services/compute/v3/json/flavors_client.py
+++ b/tempest/services/compute/v3/json/flavors_client.py
@@ -18,6 +18,8 @@
 
 from tempest.api_schema.compute import flavors as common_schema
 from tempest.api_schema.compute import flavors_access as schema_access
+from tempest.api_schema.compute import flavors_extra_specs \
+    as schema_extra_specs
 from tempest.api_schema.compute.v3 import flavors as v3schema
 from tempest.common import rest_client
 from tempest import config
@@ -99,12 +101,15 @@
         resp, body = self.post('flavors/%s/flavor-extra-specs' % flavor_id,
                                post_body)
         body = json.loads(body)
+        self.validate_response(v3schema.set_flavor_extra_specs, resp, body)
         return resp, body['extra_specs']
 
     def get_flavor_extra_spec(self, flavor_id):
         """Gets extra Specs details of the mentioned flavor."""
         resp, body = self.get('flavors/%s/flavor-extra-specs' % flavor_id)
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs,
+                               resp, body)
         return resp, body['extra_specs']
 
     def get_flavor_extra_spec_with_key(self, flavor_id, key):
@@ -112,6 +117,8 @@
         resp, body = self.get('flavors/%s/flavor-extra-specs/%s' %
                               (str(flavor_id), key))
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs_key,
+                               resp, body)
         return resp, body
 
     def update_flavor_extra_spec(self, flavor_id, key, **kwargs):
@@ -119,12 +126,16 @@
         resp, body = self.put('flavors/%s/flavor-extra-specs/%s' %
                               (flavor_id, key), json.dumps(kwargs))
         body = json.loads(body)
+        self.validate_response(schema_extra_specs.flavor_extra_specs_key,
+                               resp, body)
         return resp, body
 
     def unset_flavor_extra_spec(self, flavor_id, key):
         """Unsets extra Specs from the mentioned flavor."""
-        return self.delete('flavors/%s/flavor-extra-specs/%s' %
-                           (str(flavor_id), key))
+        resp, body = self.delete('flavors/%s/flavor-extra-specs/%s' %
+                                 (str(flavor_id), key))
+        self.validate_response(v3schema.unset_flavor_extra_specs, resp, body)
+        return resp, body
 
     def list_flavor_access(self, flavor_id):
         """Gets flavor access information given the flavor id."""
diff --git a/tempest/services/compute/v3/json/interfaces_client.py b/tempest/services/compute/v3/json/interfaces_client.py
index b45426c..25c8db7 100644
--- a/tempest/services/compute/v3/json/interfaces_client.py
+++ b/tempest/services/compute/v3/json/interfaces_client.py
@@ -16,6 +16,7 @@
 import json
 import time
 
+from tempest.api_schema.compute import interfaces as common_schema
 from tempest.common import rest_client
 from tempest import config
 from tempest import exceptions
@@ -59,6 +60,7 @@
         resp, body =\
             self.delete('servers/%s/os-attach-interfaces/%s' % (server,
                                                                 port_id))
+        self.validate_response(common_schema.delete_interface, resp, body)
         return resp, body
 
     def wait_for_interface_status(self, server, port_id, status):
diff --git a/tempest/services/compute/v3/json/servers_client.py b/tempest/services/compute/v3/json/servers_client.py
index caeb315..bbffc13 100644
--- a/tempest/services/compute/v3/json/servers_client.py
+++ b/tempest/services/compute/v3/json/servers_client.py
@@ -136,7 +136,9 @@
 
     def delete_server(self, server_id):
         """Deletes the given server."""
-        return self.delete("servers/%s" % str(server_id))
+        resp, body = self.delete("servers/%s" % str(server_id))
+        self.validate_response(common_schema.delete_server, resp, body)
+        return resp, body
 
     def list_servers(self, params=None):
         """Lists all servers for a user."""
@@ -326,12 +328,17 @@
 
     def attach_volume(self, server_id, volume_id, device='/dev/vdz'):
         """Attaches a volume to a server instance."""
-        return self.action(server_id, 'attach', None, volume_id=volume_id,
-                           device=device)
+        resp, body = self.action(server_id, 'attach', None,
+                                 volume_id=volume_id, device=device)
+        self.validate_response(schema.attach_detach_volume, resp, body)
+        return resp, body
 
     def detach_volume(self, server_id, volume_id):
         """Detaches a volume from a server instance."""
-        return self.action(server_id, 'detach', None, volume_id=volume_id)
+        resp, body = self.action(server_id, 'detach', None,
+                                 volume_id=volume_id)
+        self.validate_response(schema.attach_detach_volume, resp, body)
+        return resp, body
 
     def live_migrate_server(self, server_id, dest_host, use_block_migration):
         """This should be called with administrator privileges ."""
diff --git a/tempest/services/network/network_client_base.py b/tempest/services/network/network_client_base.py
index 34c61b0..2a797b2 100644
--- a/tempest/services/network/network_client_base.py
+++ b/tempest/services/network/network_client_base.py
@@ -104,7 +104,7 @@
         def _list(**filters):
             uri = self.get_uri(plural_name)
             if filters:
-                uri += '?' + urllib.urlencode(filters)
+                uri += '?' + urllib.urlencode(filters, doseq=1)
             resp, body = self.get(uri)
             result = {plural_name: self.deserialize_list(body)}
             return resp, result
@@ -120,14 +120,14 @@
         return _delete
 
     def _shower(self, resource_name):
-        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')]
+        def _show(resource_id, **fields):
+            # fields is a dict which key is 'fields' and value is a
+            # list of field's name. An example:
+            # {'fields': ['id', 'name']}
             plural = self.pluralize(resource_name)
             uri = '%s/%s' % (self.get_uri(plural), resource_id)
-            if field_list:
-                uri += '?' + urllib.urlencode(field_list)
+            if fields:
+                uri += '?' + urllib.urlencode(fields, doseq=1)
             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 53a3325..f3f4eb6 100644
--- a/tempest/services/object_storage/object_client.py
+++ b/tempest/services/object_storage/object_client.py
@@ -77,11 +77,16 @@
         resp, body = self.head(url)
         return resp, body
 
-    def get_object(self, container, object_name):
+    def get_object(self, container, object_name, metadata=None):
         """Retrieve object's data."""
 
+        headers = {}
+        if metadata:
+            for key in metadata:
+                headers[str(key)] = metadata[key]
+
         url = "{0}/{1}".format(container, object_name)
-        resp, body = self.get(url)
+        resp, body = self.get(url, headers=headers)
         return resp, body
 
     def copy_object_in_same_container(self, container, src_object_name,
diff --git a/tempest/test.py b/tempest/test.py
index 8df405c..254fffa 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -75,12 +75,16 @@
             try:
                 f(cls)
             except Exception as se:
+                etype, value, trace = sys.exc_info()
                 LOG.exception("setUpClass failed: %s" % se)
                 try:
                     cls.tearDownClass()
                 except Exception as te:
                     LOG.exception("tearDownClass failed: %s" % te)
-                raise se
+                try:
+                    raise etype(value), None, trace
+                finally:
+                    del trace  # for avoiding circular refs
 
     return decorator