diff --git a/requirements.txt b/requirements.txt
index 66e5b16..d0419f7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 # The order of packages is significant, because pip processes them in the order
 # of appearance. Changing the order has an impact on the overall integration
 # process, which may cause wedges in the gate later.
-pbr<2.0,>=0.11
+pbr<2.0,>=1.3
 cliff>=1.13.0 # Apache-2.0
 anyjson>=0.3.3
 httplib2>=0.7.5
@@ -11,13 +11,13 @@
 paramiko>=1.13.0
 netaddr>=0.7.12
 testrepository>=0.0.18
-pyOpenSSL>=0.11
+pyOpenSSL>=0.14
 oslo.concurrency>=2.1.0 # Apache-2.0
 oslo.config>=1.11.0 # Apache-2.0
 oslo.i18n>=1.5.0 # Apache-2.0
-oslo.log>=1.2.0 # Apache-2.0
+oslo.log>=1.6.0 # Apache-2.0
 oslo.serialization>=1.4.0 # Apache-2.0
-oslo.utils>=1.6.0 # Apache-2.0
+oslo.utils>=1.9.0 # Apache-2.0
 six>=1.9.0
 iso8601>=0.1.9
 fixtures>=1.3.1
diff --git a/setup.py b/setup.py
index 056c16c..d8080d0 100644
--- a/setup.py
+++ b/setup.py
@@ -25,5 +25,5 @@
     pass
 
 setuptools.setup(
-    setup_requires=['pbr'],
+    setup_requires=['pbr>=1.3'],
     pbr=True)
diff --git a/tempest/api/compute/admin/test_agents.py b/tempest/api/compute/admin/test_agents.py
index 1aa1615..d9a1ee5 100644
--- a/tempest/api/compute/admin/test_agents.py
+++ b/tempest/api/compute/admin/test_agents.py
@@ -109,8 +109,7 @@
         self.addCleanup(self.client.delete_agent, agent_xen['agent_id'])
 
         agent_id_xen = agent_xen['agent_id']
-        params_filter = {'hypervisor': agent_xen['hypervisor']}
-        agents = self.client.list_agents(params_filter)
+        agents = self.client.list_agents(hypervisor=agent_xen['hypervisor'])
         self.assertTrue(len(agents) > 0, 'Cannot get any agents.(%s)' % agents)
         self.assertIn(agent_id_xen, map(lambda x: x['agent_id'], agents))
         self.assertNotIn(self.agent_id, map(lambda x: x['agent_id'], agents))
diff --git a/tempest/api/compute/admin/test_hosts.py b/tempest/api/compute/admin/test_hosts.py
index 9fee2a1..0dadea5 100644
--- a/tempest/api/compute/admin/test_hosts.py
+++ b/tempest/api/compute/admin/test_hosts.py
@@ -38,9 +38,7 @@
         self.useFixture(fixtures.LockFixture('availability_zone'))
         hosts = self.client.list_hosts()
         host = hosts[0]
-        zone_name = host['zone']
-        params = {'zone': zone_name}
-        hosts = self.client.list_hosts(params)
+        hosts = self.client.list_hosts(zone=host['zone'])
         self.assertTrue(len(hosts) >= 1)
         self.assertIn(host, hosts)
 
@@ -48,16 +46,14 @@
     def test_list_hosts_with_a_blank_zone(self):
         # If send the request with a blank zone, the request will be successful
         # and it will return all the hosts list
-        params = {'zone': ''}
-        hosts = self.client.list_hosts(params)
+        hosts = self.client.list_hosts(zone='')
         self.assertNotEqual(0, len(hosts))
 
     @test.idempotent_id('c6ddbadb-c94e-4500-b12f-8ffc43843ff8')
     def test_list_hosts_with_nonexistent_zone(self):
         # If send the request with a nonexistent zone, the request will be
         # successful and no hosts will be retured
-        params = {'zone': 'xxx'}
-        hosts = self.client.list_hosts(params)
+        hosts = self.client.list_hosts(zone='xxx')
         self.assertEqual(0, len(hosts))
 
     @test.idempotent_id('38adbb12-aee2-4498-8aec-329c72423aa4')
diff --git a/tempest/api/compute/admin/test_live_migration.py b/tempest/api/compute/admin/test_live_migration.py
index 548cd4f..6ffa4e9 100644
--- a/tempest/api/compute/admin/test_live_migration.py
+++ b/tempest/api/compute/admin/test_live_migration.py
@@ -17,6 +17,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -103,10 +104,11 @@
 
         if state == 'PAUSED':
             self.admin_servers_client.pause_server(server_id)
-            self.admin_servers_client.wait_for_server_status(server_id, state)
+            waiters.wait_for_server_status(self.admin_servers_client,
+                                           server_id, state)
 
         self._migrate_server_to(server_id, target_host)
-        self.servers_client.wait_for_server_status(server_id, state)
+        waiters.wait_for_server_status(self.servers_client, server_id, state)
         self.assertEqual(target_host, self._get_host_for_server(server_id))
 
     @test.idempotent_id('1dce86b8-eb04-4c03-a9d8-9c1dc3ee0c7b')
@@ -156,5 +158,6 @@
         self.volumes_client.wait_for_volume_status(volume['id'], 'in-use')
 
         self._migrate_server_to(server_id, target_host)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, 'ACTIVE')
         self.assertEqual(target_host, self._get_host_for_server(server_id))
diff --git a/tempest/api/compute/admin/test_migrations.py b/tempest/api/compute/admin/test_migrations.py
index 5434d93..5af7406 100644
--- a/tempest/api/compute/admin/test_migrations.py
+++ b/tempest/api/compute/admin/test_migrations.py
@@ -15,6 +15,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -42,9 +43,11 @@
         server_id = server['id']
 
         self.servers_client.resize(server_id, self.flavor_ref_alt)
-        self.servers_client.wait_for_server_status(server_id, 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, 'VERIFY_RESIZE')
         self.servers_client.confirm_resize(server_id)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, 'ACTIVE')
 
         body = self.client.list_migrations()
 
diff --git a/tempest/api/compute/admin/test_security_groups.py b/tempest/api/compute/admin/test_security_groups.py
index 2c3c629..ff87a4f 100644
--- a/tempest/api/compute/admin/test_security_groups.py
+++ b/tempest/api/compute/admin/test_security_groups.py
@@ -69,8 +69,7 @@
             security_group_list.append(adm_securitygroup)
 
         # Fetch all security groups based on 'all_tenants' search filter
-        param = {'all_tenants': 'true'}
-        fetched_list = self.adm_client.list_security_groups(params=param)
+        fetched_list = self.adm_client.list_security_groups(all_tenants='true')
         sec_group_id_list = map(lambda sg: sg['id'], fetched_list)
         # Now check if all created Security Groups are present in fetched list
         for sec_group in security_group_list:
@@ -78,7 +77,7 @@
 
         # Fetch all security groups for non-admin user with 'all_tenants'
         # search filter
-        fetched_list = self.client.list_security_groups(params=param)
+        fetched_list = self.client.list_security_groups(all_tenants='true')
         # Now check if all created Security Groups are present in fetched list
         for sec_group in fetched_list:
             self.assertEqual(sec_group['tenant_id'], client_tenant_id,
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 51a03f5..1982eda 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -17,6 +17,7 @@
 from tempest.api.compute import base
 from tempest.common import fixed_network
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import test
 
 
@@ -113,7 +114,8 @@
         test_server = self.client.create_server(name, image_id, flavor,
                                                 **network_kwargs)
         self.addCleanup(self.client.delete_server, test_server['id'])
-        self.client.wait_for_server_status(test_server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client,
+                                       test_server['id'], 'ACTIVE')
         server = self.client.show_server(test_server['id'])
         self.assertEqual(server['status'], 'ACTIVE')
         hostname = server[self._host_key]
@@ -163,7 +165,7 @@
         self.client.reset_state(self.s1_id, state='error')
         rebuilt_server = self.non_admin_client.rebuild(
             self.s1_id, self.image_ref_alt)
-        self.addCleanup(self.non_admin_client.wait_for_server_status,
+        self.addCleanup(waiters.wait_for_server_status, self.non_admin_client,
                         self.s1_id, 'ACTIVE')
         self.addCleanup(self.non_admin_client.rebuild, self.s1_id,
                         self.image_ref)
@@ -173,9 +175,9 @@
         rebuilt_image_id = rebuilt_server['image']['id']
         self.assertEqual(self.image_ref_alt, rebuilt_image_id)
         self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
-        self.non_admin_client.wait_for_server_status(rebuilt_server['id'],
-                                                     'ACTIVE',
-                                                     raise_on_error=False)
+        waiters.wait_for_server_status(self.non_admin_client,
+                                       rebuilt_server['id'], 'ACTIVE',
+                                       raise_on_error=False)
         # Verify the server properties after rebuilding
         server = self.non_admin_client.show_server(rebuilt_server['id'])
         rebuilt_image_id = server['image']['id']
diff --git a/tempest/api/compute/admin/test_servers_negative.py b/tempest/api/compute/admin/test_servers_negative.py
index 6d3c4a3..b93aaca 100644
--- a/tempest/api/compute/admin/test_servers_negative.py
+++ b/tempest/api/compute/admin/test_servers_negative.py
@@ -20,6 +20,7 @@
 from tempest.api.compute import base
 from tempest.common import tempest_fixtures as fixtures
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -151,7 +152,8 @@
         server_id = server['id']
         # suspend the server.
         self.client.suspend_server(server_id)
-        self.client.wait_for_server_status(server_id, 'SUSPENDED')
+        waiters.wait_for_server_status(self.client,
+                                       server_id, 'SUSPENDED')
         # migrate an suspended server should fail
         self.assertRaises(lib_exc.Conflict,
                           self.client.migrate_server,
diff --git a/tempest/api/compute/admin/test_services.py b/tempest/api/compute/admin/test_services.py
index dd3e78c..db22925 100644
--- a/tempest/api/compute/admin/test_services.py
+++ b/tempest/api/compute/admin/test_services.py
@@ -37,8 +37,7 @@
     @test.idempotent_id('f345b1ec-bc6e-4c38-a527-3ca2bc00bef5')
     def test_get_service_by_service_binary_name(self):
         binary_name = 'nova-compute'
-        params = {'binary': binary_name}
-        services = self.client.list_services(params)
+        services = self.client.list_services(binary=binary_name)
         self.assertNotEqual(0, len(services))
         for service in services:
             self.assertEqual(binary_name, service['binary'])
@@ -49,9 +48,8 @@
         host_name = services[0]['host']
         services_on_host = [service for service in services if
                             service['host'] == host_name]
-        params = {'host': host_name}
 
-        services = self.client.list_services(params)
+        services = self.client.list_services(host=host_name)
 
         # we could have a periodic job checkin between the 2 service
         # lookups, so only compare binary lists.
@@ -67,9 +65,9 @@
         services = self.client.list_services()
         host_name = services[0]['host']
         binary_name = services[0]['binary']
-        params = {'host': host_name, 'binary': binary_name}
 
-        services = self.client.list_services(params)
+        services = self.client.list_services(host=host_name,
+                                             binary=binary_name)
         self.assertEqual(1, len(services))
         self.assertEqual(host_name, services[0]['host'])
         self.assertEqual(binary_name, services[0]['binary'])
diff --git a/tempest/api/compute/admin/test_services_negative.py b/tempest/api/compute/admin/test_services_negative.py
index 99f31c5..b9335c9 100644
--- a/tempest/api/compute/admin/test_services_negative.py
+++ b/tempest/api/compute/admin/test_services_negative.py
@@ -41,8 +41,7 @@
     def test_get_service_by_invalid_params(self):
         # return all services if send the request with invalid parameter
         services = self.client.list_services()
-        params = {'xxx': 'nova-compute'}
-        services_xxx = self.client.list_services(params)
+        services_xxx = self.client.list_services(xxx='nova-compute')
         self.assertEqual(len(services), len(services_xxx))
 
     @test.attr(type=['negative'])
@@ -50,8 +49,7 @@
     def test_get_service_by_invalid_service_and_valid_host(self):
         services = self.client.list_services()
         host_name = services[0]['host']
-        params = {'host': host_name, 'binary': 'xxx'}
-        services = self.client.list_services(params)
+        services = self.client.list_services(host=host_name, binary='xxx')
         self.assertEqual(0, len(services))
 
     @test.attr(type=['negative'])
@@ -59,6 +57,5 @@
     def test_get_service_with_valid_service_and_invalid_host(self):
         services = self.client.list_services()
         binary_name = services[0]['binary']
-        params = {'host': 'xxx', 'binary': binary_name}
-        services = self.client.list_services(params)
+        services = self.client.list_services(host='xxx', binary=binary_name)
         self.assertEqual(0, len(services))
diff --git a/tempest/api/compute/admin/test_simple_tenant_usage.py b/tempest/api/compute/admin/test_simple_tenant_usage.py
index 02085e8..1c9e5d7 100644
--- a/tempest/api/compute/admin/test_simple_tenant_usage.py
+++ b/tempest/api/compute/admin/test_simple_tenant_usage.py
@@ -49,28 +49,22 @@
     @test.idempotent_id('062c8ae9-9912-4249-8b51-e38d664e926e')
     def test_list_usage_all_tenants(self):
         # Get usage for all tenants
-        params = {'start': self.start,
-                  'end': self.end,
-                  'detailed': int(bool(True))}
-        tenant_usage = self.adm_client.list_tenant_usages(params)
+        tenant_usage = self.adm_client.list_tenant_usages(
+            start=self.start, end=self.end, detailed=int(bool(True)))
         self.assertEqual(len(tenant_usage), 8)
 
     @test.idempotent_id('94135049-a4c5-4934-ad39-08fa7da4f22e')
     def test_get_usage_tenant(self):
         # Get usage for a specific tenant
-        params = {'start': self.start,
-                  'end': self.end}
         tenant_usage = self.adm_client.show_tenant_usage(
-            self.tenant_id, params)
+            self.tenant_id, start=self.start, end=self.end)
 
         self.assertEqual(len(tenant_usage), 8)
 
     @test.idempotent_id('9d00a412-b40e-4fd9-8eba-97b496316116')
     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}
         tenant_usage = self.client.show_tenant_usage(
-            self.tenant_id, params)
+            self.tenant_id, start=self.start, end=self.end)
 
         self.assertEqual(len(tenant_usage), 8)
diff --git a/tempest/api/compute/admin/test_simple_tenant_usage_negative.py b/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
index 3c66859..934fc31 100644
--- a/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
+++ b/tempest/api/compute/admin/test_simple_tenant_usage_negative.py
@@ -48,7 +48,7 @@
                   'end': self.end}
         self.assertRaises(lib_exc.NotFound,
                           self.adm_client.show_tenant_usage,
-                          '', params)
+                          '', **params)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('4079dd2a-9e8d-479f-869d-6fa985ce45b6')
@@ -58,7 +58,7 @@
                   'end': self.start}
         self.assertRaises(lib_exc.BadRequest,
                           self.adm_client.show_tenant_usage,
-                          self.client.tenant_id, params)
+                          self.client.tenant_id, **params)
 
     @test.attr(type=['negative'])
     @test.idempotent_id('bbe6fe2c-15d8-404c-a0a2-44fad0ad5cc7')
@@ -68,4 +68,4 @@
                   'end': self.end,
                   'detailed': int(bool(True))}
         self.assertRaises(lib_exc.Forbidden,
-                          self.client.list_tenant_usages, params)
+                          self.client.list_tenant_usages, **params)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 50756f6..759bb8c 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -144,8 +144,8 @@
         """
         if getattr(cls, 'server_id', None) is not None:
             try:
-                cls.servers_client.wait_for_server_status(cls.server_id,
-                                                          'ACTIVE')
+                waiters.wait_for_server_status(cls.servers_client,
+                                               cls.server_id, 'ACTIVE')
             except Exception as exc:
                 LOG.exception(exc)
                 cls.servers_client.delete_server(cls.server_id)
@@ -289,8 +289,8 @@
 
             if kwargs['wait_until'] == 'ACTIVE':
                 if kwargs.get('wait_for_server', True):
-                    cls.servers_client.wait_for_server_status(server_id,
-                                                              'ACTIVE')
+                    waiters.wait_for_server_status(cls.servers_client,
+                                                   server_id, 'ACTIVE')
         return image
 
     @classmethod
diff --git a/tempest/api/compute/floating_ips/test_floating_ips_actions.py b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
index 2cc1b59..8bb4fac 100644
--- a/tempest/api/compute/floating_ips/test_floating_ips_actions.py
+++ b/tempest/api/compute/floating_ips/test_floating_ips_actions.py
@@ -17,6 +17,7 @@
 
 from tempest.api.compute.floating_ips import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import test
 
 
@@ -113,7 +114,8 @@
         # Create server so as to use for Multiple association
         new_name = data_utils.rand_name('floating_server')
         body = self.create_test_server(name=new_name)
-        self.servers_client.wait_for_server_status(body['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       body['id'], 'ACTIVE')
         self.new_server_id = body['id']
         self.addCleanup(self.servers_client.delete_server, self.new_server_id)
 
diff --git a/tempest/api/compute/images/test_images_negative.py b/tempest/api/compute/images/test_images_negative.py
index 07eca9e..9721fa5 100644
--- a/tempest/api/compute/images/test_images_negative.py
+++ b/tempest/api/compute/images/test_images_negative.py
@@ -16,6 +16,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -74,8 +75,8 @@
     def test_create_image_from_stopped_server(self):
         server = self.create_test_server(wait_until='ACTIVE')
         self.servers_client.stop(server['id'])
-        self.servers_client.wait_for_server_status(server['id'],
-                                                   'SHUTOFF')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server['id'], 'SHUTOFF')
         self.addCleanup(self.servers_client.delete_server, server['id'])
         snapshot_name = data_utils.rand_name('test-snap')
         image = self.create_image_from_server(server['id'],
diff --git a/tempest/api/compute/images/test_images_oneserver.py b/tempest/api/compute/images/test_images_oneserver.py
index 1741e86..40a781c 100644
--- a/tempest/api/compute/images/test_images_oneserver.py
+++ b/tempest/api/compute/images/test_images_oneserver.py
@@ -38,8 +38,8 @@
         super(ImagesOneServerTestJSON, self).setUp()
         # Check if the server is in a clean state after test
         try:
-            self.servers_client.wait_for_server_status(self.server_id,
-                                                       'ACTIVE')
+            waiters.wait_for_server_status(self.servers_client,
+                                           self.server_id, 'ACTIVE')
         except Exception:
             LOG.exception('server %s timed out to become ACTIVE. rebuilding'
                           % self.server_id)
diff --git a/tempest/api/compute/images/test_images_oneserver_negative.py b/tempest/api/compute/images/test_images_oneserver_negative.py
index 1cf6924..1a74e52 100644
--- a/tempest/api/compute/images/test_images_oneserver_negative.py
+++ b/tempest/api/compute/images/test_images_oneserver_negative.py
@@ -19,6 +19,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -43,8 +44,8 @@
         super(ImagesOneServerNegativeTestJSON, self).setUp()
         # Check if the server is in a clean state after test
         try:
-            self.servers_client.wait_for_server_status(self.server_id,
-                                                       'ACTIVE')
+            waiters.wait_for_server_status(self.servers_client, self.server_id,
+                                           'ACTIVE')
         except Exception:
             LOG.exception('server %s timed out to become ACTIVE. rebuilding'
                           % self.server_id)
diff --git a/tempest/api/compute/images/test_list_image_filters.py b/tempest/api/compute/images/test_list_image_filters.py
index b0bbc91..2c0ce59 100644
--- a/tempest/api/compute/images/test_list_image_filters.py
+++ b/tempest/api/compute/images/test_list_image_filters.py
@@ -81,8 +81,8 @@
         cls.server1 = cls.create_test_server()
         cls.server2 = cls.create_test_server(wait_until='ACTIVE')
         # NOTE(sdague) this is faster than doing the sync wait_util on both
-        cls.servers_client.wait_for_server_status(cls.server1['id'],
-                                                  'ACTIVE')
+        waiters.wait_for_server_status(cls.servers_client,
+                                       cls.server1['id'], 'ACTIVE')
 
         # Create images to be used in the filter tests
         cls.snapshot1 = cls.create_image_from_server(
diff --git a/tempest/api/compute/security_groups/test_security_groups.py b/tempest/api/compute/security_groups/test_security_groups.py
index 491e52e..bd252b0 100644
--- a/tempest/api/compute/security_groups/test_security_groups.py
+++ b/tempest/api/compute/security_groups/test_security_groups.py
@@ -17,6 +17,7 @@
 
 from tempest.api.compute.security_groups import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import test
 
 
@@ -97,7 +98,8 @@
         server_name = data_utils.rand_name('server')
         server = self.create_test_server(name=server_name)
         server_id = server['id']
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server_id,
+                                       'ACTIVE')
         self.servers_client.add_security_group(server_id, sg['name'])
 
         # Check that we are not able to delete the security
@@ -108,7 +110,8 @@
 
         # Reboot and add the other security group
         self.servers_client.reboot(server_id, 'HARD')
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server_id,
+                                       'ACTIVE')
         self.servers_client.add_security_group(server_id, sg2['name'])
 
         # Check that we are not able to delete the other security
diff --git a/tempest/api/compute/servers/test_delete_server.py b/tempest/api/compute/servers/test_delete_server.py
index 990ad47..b2acd34 100644
--- a/tempest/api/compute/servers/test_delete_server.py
+++ b/tempest/api/compute/servers/test_delete_server.py
@@ -52,7 +52,7 @@
         # Delete a server while it's VM state is Shutoff
         server = self.create_test_server(wait_until='ACTIVE')
         self.client.stop(server['id'])
-        self.client.wait_for_server_status(server['id'], 'SHUTOFF')
+        waiters.wait_for_server_status(self.client, server['id'], 'SHUTOFF')
         self.client.delete_server(server['id'])
         self.client.wait_for_server_termination(server['id'])
 
@@ -63,7 +63,7 @@
         # Delete a server while it's VM state is Pause
         server = self.create_test_server(wait_until='ACTIVE')
         self.client.pause_server(server['id'])
-        self.client.wait_for_server_status(server['id'], 'PAUSED')
+        waiters.wait_for_server_status(self.client, server['id'], 'PAUSED')
         self.client.delete_server(server['id'])
         self.client.wait_for_server_termination(server['id'])
 
@@ -74,7 +74,7 @@
         # Delete a server while it's VM state is Suspended
         server = self.create_test_server(wait_until='ACTIVE')
         self.client.suspend_server(server['id'])
-        self.client.wait_for_server_status(server['id'], 'SUSPENDED')
+        waiters.wait_for_server_status(self.client, server['id'], 'SUSPENDED')
         self.client.delete_server(server['id'])
         self.client.wait_for_server_termination(server['id'])
 
@@ -88,12 +88,12 @@
 
         offload_time = CONF.compute.shelved_offload_time
         if offload_time >= 0:
-            self.client.wait_for_server_status(server['id'],
-                                               'SHELVED_OFFLOADED',
-                                               extra_timeout=offload_time)
+            waiters.wait_for_server_status(self.client, server['id'],
+                                           'SHELVED_OFFLOADED',
+                                           extra_timeout=offload_time)
         else:
-            self.client.wait_for_server_status(server['id'],
-                                               'SHELVED')
+            waiters.wait_for_server_status(self.client, server['id'],
+                                           'SHELVED')
         self.client.delete_server(server['id'])
         self.client.wait_for_server_termination(server['id'])
 
@@ -104,7 +104,8 @@
         # Delete a server while it's VM state is VERIFY_RESIZE
         server = self.create_test_server(wait_until='ACTIVE')
         self.client.resize(server['id'], self.flavor_ref_alt)
-        self.client.wait_for_server_status(server['id'], 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.client, server['id'],
+                                       'VERIFY_RESIZE')
         self.client.delete_server(server['id'])
         self.client.wait_for_server_termination(server['id'])
 
diff --git a/tempest/api/compute/servers/test_disk_config.py b/tempest/api/compute/servers/test_disk_config.py
index 00aa510..3e8a0d2 100644
--- a/tempest/api/compute/servers/test_disk_config.py
+++ b/tempest/api/compute/servers/test_disk_config.py
@@ -16,6 +16,7 @@
 import testtools
 
 from tempest.api.compute import base
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -47,7 +48,7 @@
         if disk_config != server['OS-DCF:diskConfig']:
             server = self.client.update_server(self.server_id,
                                                disk_config=disk_config)
-            self.client.wait_for_server_status(server['id'], 'ACTIVE')
+            waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
             server = self.client.show_server(server['id'])
             self.assertEqual(disk_config, server['OS-DCF:diskConfig'])
 
@@ -61,7 +62,7 @@
                                      disk_config='MANUAL')
 
         # Wait for the server to become active
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
 
         # Verify the specified attributes are set correctly
         server = self.client.show_server(server['id'])
@@ -77,7 +78,7 @@
                                      disk_config='AUTO')
 
         # Wait for the server to become active
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
 
         # Verify the specified attributes are set correctly
         server = self.client.show_server(server['id'])
@@ -101,9 +102,10 @@
         # Resize with auto option
         flavor_id = self._get_alternative_flavor()
         self.client.resize(self.server_id, flavor_id, disk_config='AUTO')
-        self.client.wait_for_server_status(self.server_id, 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'VERIFY_RESIZE')
         self.client.confirm_resize(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         server = self.client.show_server(self.server_id)
         self.assertEqual('AUTO', server['OS-DCF:diskConfig'])
@@ -118,9 +120,10 @@
         # Resize with manual option
         flavor_id = self._get_alternative_flavor()
         self.client.resize(self.server_id, flavor_id, disk_config='MANUAL')
-        self.client.wait_for_server_status(self.server_id, 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'VERIFY_RESIZE')
         self.client.confirm_resize(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         server = self.client.show_server(self.server_id)
         self.assertEqual('MANUAL', server['OS-DCF:diskConfig'])
@@ -133,7 +136,7 @@
         # Update the disk_config attribute to manual
         server = self.client.update_server(self.server_id,
                                            disk_config='MANUAL')
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
 
         # Verify the disk_config attribute is set correctly
         server = self.client.show_server(server['id'])
diff --git a/tempest/api/compute/servers/test_instance_actions.py b/tempest/api/compute/servers/test_instance_actions.py
index 6233c58..dc126a5 100644
--- a/tempest/api/compute/servers/test_instance_actions.py
+++ b/tempest/api/compute/servers/test_instance_actions.py
@@ -14,6 +14,7 @@
 #    under the License.
 
 from tempest.api.compute import base
+from tempest.common import waiters
 from tempest import test
 
 
@@ -35,7 +36,7 @@
     def test_list_instance_actions(self):
         # List actions of the provided server
         self.client.reboot(self.server_id, 'HARD')
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         body = self.client.list_instance_actions(self.server_id)
         self.assertTrue(len(body) == 2, str(body))
diff --git a/tempest/api/compute/servers/test_list_server_filters.py b/tempest/api/compute/servers/test_list_server_filters.py
index 6d546d8..a75cb3e 100644
--- a/tempest/api/compute/servers/test_list_server_filters.py
+++ b/tempest/api/compute/servers/test_list_server_filters.py
@@ -19,6 +19,7 @@
 from tempest.api import utils
 from tempest.common import fixed_network
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -137,12 +138,12 @@
         # Filter the list of servers by server shutoff status
         params = {'status': 'shutoff'}
         self.client.stop(self.s1['id'])
-        self.client.wait_for_server_status(self.s1['id'],
-                                           'SHUTOFF')
+        waiters.wait_for_server_status(self.client, self.s1['id'],
+                                       'SHUTOFF')
         body = self.client.list_servers(**params)
         self.client.start(self.s1['id'])
-        self.client.wait_for_server_status(self.s1['id'],
-                                           'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.s1['id'],
+                                       'ACTIVE')
         servers = body['servers']
 
         self.assertIn(self.s1['id'], map(lambda x: x['id'], servers))
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index e2713e1..f0f6b8c 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -24,6 +24,7 @@
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -41,7 +42,8 @@
         super(ServerActionsTestJSON, self).setUp()
         # Check if the server is in a clean state after test
         try:
-            self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+            waiters.wait_for_server_status(self.client,
+                                           self.server_id, 'ACTIVE')
         except lib_exc.NotFound:
             # The server was deleted by previous test, create a new one
             server = self.create_test_server(
@@ -81,7 +83,7 @@
         # The server's password should be set to the provided password
         new_password = 'Newpass1234'
         self.client.change_password(self.server_id, new_password)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         if CONF.validation.run_validation:
             # Verify that the user can authenticate with the new password
@@ -104,7 +106,7 @@
             boot_time = linux_client.get_boot_time()
 
         self.client.reboot(self.server_id, reboot_type)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         if CONF.validation.run_validation:
             # Log in and verify the boot time has changed
@@ -131,7 +133,7 @@
 
     def _rebuild_server_and_check(self, image_ref):
         rebuilt_server = self.client.rebuild(self.server_id, image_ref)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
         msg = ('Server was not rebuilt to the original image. '
                'The original image: {0}. The current image: {1}'
                .format(image_ref, rebuilt_server['image']['id']))
@@ -165,7 +167,8 @@
         self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
 
         # Verify the server properties after the rebuild completes
-        self.client.wait_for_server_status(rebuilt_server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client,
+                                       rebuilt_server['id'], 'ACTIVE')
         server = self.client.show_server(rebuilt_server['id'])
         rebuilt_image_id = server['image']['id']
         self.assertTrue(self.image_ref_alt.endswith(rebuilt_image_id))
@@ -189,7 +192,7 @@
         new_image = (self.image_ref_alt
                      if old_image == self.image_ref else self.image_ref)
         self.client.stop(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'SHUTOFF')
+        waiters.wait_for_server_status(self.client, self.server_id, 'SHUTOFF')
         rebuilt_server = self.client.rebuild(self.server_id, new_image)
         # If the server was rebuilt on a different image, restore it to the
         # original image once the test ends
@@ -203,7 +206,8 @@
         self.assertEqual(self.flavor_ref, rebuilt_server['flavor']['id'])
 
         # Verify the server properties after the rebuild completes
-        self.client.wait_for_server_status(rebuilt_server['id'], 'SHUTOFF')
+        waiters.wait_for_server_status(self.client,
+                                       rebuilt_server['id'], 'SHUTOFF')
         server = self.client.show_server(rebuilt_server['id'])
         rebuilt_image_id = server['image']['id']
         self.assertEqual(new_image, rebuilt_image_id)
@@ -215,16 +219,18 @@
         # the provided flavor
 
         if stop:
-            self.servers_client.stop(self.server_id)
-            self.servers_client.wait_for_server_status(self.server_id,
-                                                       'SHUTOFF')
+            self.client.stop(self.server_id)
+            waiters.wait_for_server_status(self.client, self.server_id,
+                                           'SHUTOFF')
 
         self.client.resize(self.server_id, self.flavor_ref_alt)
-        self.client.wait_for_server_status(self.server_id, 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'VERIFY_RESIZE')
 
         self.client.confirm_resize(self.server_id)
         expected_status = 'SHUTOFF' if stop else 'ACTIVE'
-        self.client.wait_for_server_status(self.server_id, expected_status)
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       expected_status)
 
         server = self.client.show_server(self.server_id)
         self.assertEqual(self.flavor_ref_alt, server['flavor']['id'])
@@ -257,10 +263,11 @@
         # values after a resize is reverted
 
         self.client.resize(self.server_id, self.flavor_ref_alt)
-        self.client.wait_for_server_status(self.server_id, 'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'VERIFY_RESIZE')
 
         self.client.revert_resize(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
         server = self.client.show_server(self.server_id)
         self.assertEqual(self.flavor_ref, server['flavor']['id'])
@@ -273,10 +280,10 @@
         # Positive test:create backup successfully and rotate backups correctly
         # create the first and the second backup
         backup1 = data_utils.rand_name('backup-1')
-        resp = self.servers_client.create_backup(self.server_id,
-                                                 'daily',
-                                                 2,
-                                                 backup1).response
+        resp = self.client.create_backup(self.server_id,
+                                         'daily',
+                                         2,
+                                         backup1).response
         oldest_backup_exist = True
 
         # the oldest one should be deleted automatically in this test
@@ -296,11 +303,11 @@
         self.os.image_client.wait_for_image_status(image1_id, 'active')
 
         backup2 = data_utils.rand_name('backup-2')
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
-        resp = self.servers_client.create_backup(self.server_id,
-                                                 'daily',
-                                                 2,
-                                                 backup2).response
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
+        resp = self.client.create_backup(self.server_id,
+                                         'daily',
+                                         2,
+                                         backup2).response
         image2_id = data_utils.parse_image_id(resp['location'])
         self.addCleanup(self.os.image_client.delete_image, image2_id)
         self.os.image_client.wait_for_image_status(image2_id, 'active')
@@ -324,15 +331,15 @@
         # create the third one, due to the rotation is 2,
         # the first one will be deleted
         backup3 = data_utils.rand_name('backup-3')
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
-        resp = self.servers_client.create_backup(self.server_id,
-                                                 'daily',
-                                                 2,
-                                                 backup3).response
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
+        resp = self.client.create_backup(self.server_id,
+                                         'daily',
+                                         2,
+                                         backup3).response
         image3_id = data_utils.parse_image_id(resp['location'])
         self.addCleanup(self.os.image_client.delete_image, image3_id)
         # the first back up should be deleted
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
         self.os.image_client.wait_for_resource_deletion(image1_id)
         oldest_backup_exist = False
         image_list = self.os.image_client.list_images(
@@ -350,7 +357,7 @@
                          (image_list[0]['name'], image_list[1]['name']))
 
     def _get_output(self):
-        output = self.servers_client.get_console_output(
+        output = self.client.get_console_output(
             self.server_id, 10).data
         self.assertTrue(output, "Console output was empty.")
         lines = len(output.split('\n'))
@@ -368,9 +375,8 @@
         # log file is truncated and we cannot get any console log through
         # "console-log" API.
         # The detail is https://bugs.launchpad.net/nova/+bug/1251920
-        self.servers_client.reboot(self.server_id, 'HARD')
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
-
+        self.client.reboot(self.server_id, 'HARD')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
         self.wait_for(self._get_output)
 
     @test.idempotent_id('89104062-69d8-4b19-a71b-f47b7af093d7')
@@ -380,8 +386,8 @@
         server = self.create_test_server(wait_until='ACTIVE')
 
         def _check_full_length_console_log():
-            output = self.servers_client.get_console_output(server['id'],
-                                                            None).data
+            output = self.client.get_console_output(server['id'],
+                                                    None).data
             self.assertTrue(output, "Console output was empty.")
             lines = len(output.split('\n'))
 
@@ -405,9 +411,8 @@
         server = self.create_test_server(wait_until='ACTIVE')
         temp_server_id = server['id']
 
-        self.servers_client.stop(temp_server_id)
-        self.servers_client.wait_for_server_status(temp_server_id, 'SHUTOFF')
-
+        self.client.stop(temp_server_id)
+        waiters.wait_for_server_status(self.client, temp_server_id, 'SHUTOFF')
         self.wait_for(self._get_output)
 
     @test.idempotent_id('bd61a9fd-062f-4670-972b-2d6c3e3b9e73')
@@ -415,18 +420,19 @@
                           'Pause is not available.')
     def test_pause_unpause_server(self):
         self.client.pause_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'PAUSED')
+        waiters.wait_for_server_status(self.client, self.server_id, 'PAUSED')
         self.client.unpause_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
     @test.idempotent_id('0d8ee21e-b749-462d-83da-b85b41c86c7f')
     @testtools.skipUnless(CONF.compute_feature_enabled.suspend,
                           'Suspend is not available.')
     def test_suspend_resume_server(self):
         self.client.suspend_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'SUSPENDED')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'SUSPENDED')
         self.client.resume_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
     @test.idempotent_id('77eba8e0-036e-4635-944b-f7a8f3b78dc9')
     @testtools.skipUnless(CONF.compute_feature_enabled.shelve,
@@ -436,16 +442,16 @@
 
         offload_time = CONF.compute.shelved_offload_time
         if offload_time >= 0:
-            self.client.wait_for_server_status(self.server_id,
-                                               'SHELVED_OFFLOADED',
-                                               extra_timeout=offload_time)
+            waiters.wait_for_server_status(self.client, self.server_id,
+                                           'SHELVED_OFFLOADED',
+                                           extra_timeout=offload_time)
         else:
-            self.client.wait_for_server_status(self.server_id,
-                                               'SHELVED')
+            waiters.wait_for_server_status(self.client, self.server_id,
+                                           'SHELVED')
 
             self.client.shelve_offload_server(self.server_id)
-            self.client.wait_for_server_status(self.server_id,
-                                               'SHELVED_OFFLOADED')
+            waiters.wait_for_server_status(self.client, self.server_id,
+                                           'SHELVED_OFFLOADED')
 
         server = self.client.show_server(self.server_id)
         image_name = server['name'] + '-shelved'
@@ -455,29 +461,29 @@
         self.assertEqual(image_name, images[0]['name'])
 
         self.client.unshelve_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
     @test.idempotent_id('af8eafd4-38a7-4a4b-bdbc-75145a580560')
     def test_stop_start_server(self):
-        self.servers_client.stop(self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'SHUTOFF')
-        self.servers_client.start(self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
+        self.client.stop(self.server_id)
+        waiters.wait_for_server_status(self.client, self.server_id, 'SHUTOFF')
+        self.client.start(self.server_id)
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
     @test.idempotent_id('80a8094c-211e-440a-ab88-9e59d556c7ee')
     def test_lock_unlock_server(self):
         # Lock the server,try server stop(exceptions throw),unlock it and retry
-        self.servers_client.lock_server(self.server_id)
-        server = self.servers_client.show_server(self.server_id)
+        self.client.lock_server(self.server_id)
+        server = self.client.show_server(self.server_id)
         self.assertEqual(server['status'], 'ACTIVE')
         # Locked server is not allowed to be stopped by non-admin user
         self.assertRaises(lib_exc.Conflict,
-                          self.servers_client.stop, self.server_id)
-        self.servers_client.unlock_server(self.server_id)
-        self.servers_client.stop(self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'SHUTOFF')
-        self.servers_client.start(self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
+                          self.client.stop, self.server_id)
+        self.client.unlock_server(self.server_id)
+        self.client.stop(self.server_id)
+        waiters.wait_for_server_status(self.client, self.server_id, 'SHUTOFF')
+        self.client.start(self.server_id)
+        waiters.wait_for_server_status(self.client, self.server_id, 'ACTIVE')
 
     def _validate_url(self, url):
         valid_scheme = ['http', 'https']
@@ -493,8 +499,8 @@
         # Get the VNC console of type 'novnc' and 'xvpvnc'
         console_types = ['novnc', 'xvpvnc']
         for console_type in console_types:
-            body = self.servers_client.get_vnc_console(self.server_id,
-                                                       console_type)
+            body = self.client.get_vnc_console(self.server_id,
+                                               console_type)
             self.assertEqual(console_type, body['type'])
             self.assertNotEqual('', body['url'])
             self._validate_url(body['url'])
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index 20bc77f..98a2f9d 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -15,6 +15,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -56,7 +57,8 @@
         server = cls.create_test_server(wait_until='BUILD')
         cls.server_id = server['id']
         cls.password = server['adminPass']
-        cls.servers_client.wait_for_server_status(cls.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(cls.servers_client, cls.server_id,
+                                       'ACTIVE')
 
     def setUp(self):
         super(ServerRescueTestJSON, self).setUp()
@@ -74,22 +76,26 @@
 
     def _unrescue(self, server_id):
         self.servers_client.unrescue_server(server_id)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server_id,
+                                       'ACTIVE')
 
     @test.idempotent_id('fd032140-714c-42e4-a8fd-adcd8df06be6')
     def test_rescue_unrescue_instance(self):
         self.servers_client.rescue_server(
             self.server_id, adminPass=self.password)
-        self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
+        waiters.wait_for_server_status(self.servers_client, self.server_id,
+                                       'RESCUE')
         self.servers_client.unrescue_server(self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, self.server_id,
+                                       'ACTIVE')
 
     @test.idempotent_id('4842e0cf-e87d-4d9d-b61f-f4791da3cacc')
     def test_rescued_vm_associate_dissociate_floating_ip(self):
         # Rescue the server
         self.servers_client.rescue_server(
             self.server_id, adminPass=self.password)
-        self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
+        waiters.wait_for_server_status(self.servers_client, self.server_id,
+                                       'RESCUE')
         self.addCleanup(self._unrescue, self.server_id)
 
         # Association of floating IP to a rescued vm
@@ -106,7 +112,8 @@
         # Rescue the server
         self.servers_client.rescue_server(
             self.server_id, adminPass=self.password)
-        self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
+        waiters.wait_for_server_status(self.servers_client, self.server_id,
+                                       'RESCUE')
         self.addCleanup(self._unrescue, self.server_id)
 
         # Add Security group
diff --git a/tempest/api/compute/servers/test_server_rescue_negative.py b/tempest/api/compute/servers/test_server_rescue_negative.py
index 4300dd4..2fe63ed 100644
--- a/tempest/api/compute/servers/test_server_rescue_negative.py
+++ b/tempest/api/compute/servers/test_server_rescue_negative.py
@@ -54,8 +54,10 @@
 
         cls.servers_client.rescue_server(
             cls.rescue_id, adminPass=rescue_password)
-        cls.servers_client.wait_for_server_status(cls.rescue_id, 'RESCUE')
-        cls.servers_client.wait_for_server_status(cls.server_id, 'ACTIVE')
+        waiters.wait_for_server_status(cls.servers_client,
+                                       cls.rescue_id, 'RESCUE')
+        waiters.wait_for_server_status(cls.servers_client,
+                                       cls.server_id, 'ACTIVE')
 
     def _create_volume(self):
         volume = self.volumes_extensions_client.create_volume(
@@ -73,11 +75,13 @@
 
     def _unrescue(self, server_id):
         self.servers_client.unrescue_server(server_id)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, 'ACTIVE')
 
     def _unpause(self, server_id):
         self.servers_client.unpause_server(server_id)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, 'ACTIVE')
 
     @test.idempotent_id('cc3a883f-43c0-4fb6-a9bb-5579d64984ed')
     @testtools.skipUnless(CONF.compute_feature_enabled.pause,
@@ -87,7 +91,8 @@
         # Rescue a paused server
         self.servers_client.pause_server(self.server_id)
         self.addCleanup(self._unpause, self.server_id)
-        self.servers_client.wait_for_server_status(self.server_id, 'PAUSED')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server_id, 'PAUSED')
         self.assertRaises(lib_exc.Conflict,
                           self.servers_client.rescue_server,
                           self.server_id)
@@ -124,7 +129,8 @@
         # Rescue the server
         self.servers_client.rescue_server(self.server_id,
                                           adminPass=self.password)
-        self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server_id, 'RESCUE')
         self.addCleanup(self._unrescue, self.server_id)
 
         # Attach the volume to the server
@@ -150,7 +156,8 @@
         # Rescue the server
         self.servers_client.rescue_server(self.server_id,
                                           adminPass=self.password)
-        self.servers_client.wait_for_server_status(self.server_id, 'RESCUE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server_id, 'RESCUE')
         # addCleanup is a LIFO queue
         self.addCleanup(self._detach, self.server_id, volume['id'])
         self.addCleanup(self._unrescue, self.server_id)
diff --git a/tempest/api/compute/servers/test_servers.py b/tempest/api/compute/servers/test_servers.py
index a7ebc09..2c1e69c 100644
--- a/tempest/api/compute/servers/test_servers.py
+++ b/tempest/api/compute/servers/test_servers.py
@@ -15,6 +15,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import test
 
 
@@ -66,7 +67,7 @@
         self.addCleanup(self.keypairs_client.delete_keypair, key_name)
         self.keypairs_client.list_keypairs()
         server = self.create_test_server(key_name=key_name)
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
         server = self.client.show_server(server['id'])
         self.assertEqual(key_name, server['key_name'])
 
@@ -76,7 +77,7 @@
         # Update the server with a new name
         self.client.update_server(server_id,
                                   name=new_name)
-        self.client.wait_for_server_status(server_id, status)
+        waiters.wait_for_server_status(self.client, server_id, status)
 
         # Verify the name of the server has changed
         server = self.client.show_server(server_id)
@@ -95,7 +96,7 @@
         # The server name should be changed to the the provided value
         server = self.create_test_server(wait_until='ACTIVE')
         self.client.stop(server['id'])
-        self.client.wait_for_server_status(server['id'], 'SHUTOFF')
+        waiters.wait_for_server_status(self.client, server['id'], 'SHUTOFF')
         updated_server = self._update_server_name(server['id'], 'SHUTOFF')
         self.assertNotIn('progress', updated_server)
 
@@ -108,7 +109,7 @@
         self.client.update_server(server['id'],
                                   accessIPv4='1.1.1.1',
                                   accessIPv6='::babe:202:202')
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
 
         # Verify the access addresses have been updated
         server = self.client.show_server(server['id'])
@@ -119,6 +120,6 @@
     def test_create_server_with_ipv6_addr_only(self):
         # Create a server without an IPv4 address(only IPv6 address).
         server = self.create_test_server(accessIPv6='2001:2001::3')
-        self.client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.client, server['id'], 'ACTIVE')
         server = self.client.show_server(server['id'])
         self.assertEqual('2001:2001::3', server['accessIPv6'])
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index d13d9d6..fe05456 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -20,6 +20,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -33,7 +34,8 @@
     def setUp(self):
         super(ServersNegativeTestJSON, self).setUp()
         try:
-            self.client.wait_for_server_status(self.server_id, 'ACTIVE')
+            waiters.wait_for_server_status(self.client, self.server_id,
+                                           'ACTIVE')
         except Exception:
             self.__class__.server_id = self.rebuild_server(self.server_id)
 
@@ -157,7 +159,7 @@
     def test_pause_paused_server(self):
         # Pause a paused server.
         self.client.pause_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'PAUSED')
+        waiters.wait_for_server_status(self.client, self.server_id, 'PAUSED')
         self.assertRaises(lib_exc.Conflict,
                           self.client.pause_server,
                           self.server_id)
@@ -384,7 +386,8 @@
     def test_suspend_server_invalid_state(self):
         # suspend a suspended server.
         self.client.suspend_server(self.server_id)
-        self.client.wait_for_server_status(self.server_id, 'SUSPENDED')
+        waiters.wait_for_server_status(self.client, self.server_id,
+                                       'SUSPENDED')
         self.assertRaises(lib_exc.Conflict,
                           self.client.suspend_server,
                           self.server_id)
@@ -465,12 +468,14 @@
 
         offload_time = CONF.compute.shelved_offload_time
         if offload_time >= 0:
-            self.client.wait_for_server_status(self.server_id,
-                                               'SHELVED_OFFLOADED',
-                                               extra_timeout=offload_time)
+            waiters.wait_for_server_status(self.client,
+                                           self.server_id,
+                                           'SHELVED_OFFLOADED',
+                                           extra_timeout=offload_time)
         else:
-            self.client.wait_for_server_status(self.server_id,
-                                               'SHELVED')
+            waiters.wait_for_server_status(self.client,
+                                           self.server_id,
+                                           'SHELVED')
 
         server = self.client.show_server(self.server_id)
         image_name = server['name'] + '-shelved'
diff --git a/tempest/api/compute/test_live_block_migration_negative.py b/tempest/api/compute/test_live_block_migration_negative.py
index 47251b2..fabe55d 100644
--- a/tempest/api/compute/test_live_block_migration_negative.py
+++ b/tempest/api/compute/test_live_block_migration_negative.py
@@ -17,6 +17,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -55,4 +56,5 @@
 
         self.assertRaises(lib_exc.BadRequest, self._migrate_server_to,
                           server_id, target_host)
-        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server_id,
+                                       'ACTIVE')
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index e7cd27d..8e4278a 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -17,6 +17,7 @@
 
 from tempest.api.compute import base
 from tempest.common.utils.linux import remote_client
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -97,11 +98,12 @@
         self._create_and_attach()
 
         self.servers_client.stop(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'],
-                                                   'SHUTOFF')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'SHUTOFF')
 
         self.servers_client.start(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'ACTIVE')
 
         linux_client = remote_client.RemoteClient(
             self.get_server_ip(self.server),
@@ -115,11 +117,12 @@
         self._detach(self.server['id'], self.volume['id'])
         self.attachment = None
         self.servers_client.stop(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'],
-                                                   'SHUTOFF')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'SHUTOFF')
 
         self.servers_client.start(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'ACTIVE')
 
         linux_client = remote_client.RemoteClient(
             self.get_server_ip(self.server),
diff --git a/tempest/api/network/test_routers.py b/tempest/api/network/test_routers.py
index 50671d0..78b51c8 100644
--- a/tempest/api/network/test_routers.py
+++ b/tempest/api/network/test_routers.py
@@ -270,33 +270,57 @@
     @test.idempotent_id('c86ac3a8-50bd-4b00-a6b8-62af84a0765c')
     @test.requires_ext(extension='extraroute', service='network')
     def test_update_extra_route(self):
-        self.network = self.create_network()
-        self.name = self.network['name']
-        self.subnet = self.create_subnet(self.network)
-        # Add router interface with subnet id
+        # Create different cidr for each subnet to avoid cidr duplicate
+        # The cidr starts from tenant_cidr
+        next_cidr = netaddr.IPNetwork(self.tenant_cidr)
+        # Prepare to build several routes
+        test_routes = []
+        routes_num = 5
+        # Create a router
         self.router = self._create_router(
             data_utils.rand_name('router-'), True)
-        self.create_router_interface(self.router['id'], self.subnet['id'])
         self.addCleanup(
             self._delete_extra_routes,
             self.router['id'])
         # Update router extra route, second ip of the range is
         # used as next hop
-        cidr = netaddr.IPNetwork(self.subnet['cidr'])
-        next_hop = str(cidr[2])
-        destination = str(self.subnet['cidr'])
+        for i in range(routes_num):
+            network = self.create_network()
+            subnet = self.create_subnet(network, cidr=next_cidr)
+            next_cidr = next_cidr.next()
+
+            # Add router interface with subnet id
+            self.create_router_interface(self.router['id'], subnet['id'])
+
+            cidr = netaddr.IPNetwork(subnet['cidr'])
+            next_hop = str(cidr[2])
+            destination = str(subnet['cidr'])
+            test_routes.append(
+                {'nexthop': next_hop, 'destination': destination}
+            )
+
+        test_routes.sort(key=lambda x: x['destination'])
         extra_route = self.client.update_extra_routes(self.router['id'],
-                                                      next_hop, destination)
-        self.assertEqual(1, len(extra_route['router']['routes']))
-        self.assertEqual(destination,
-                         extra_route['router']['routes'][0]['destination'])
-        self.assertEqual(next_hop,
-                         extra_route['router']['routes'][0]['nexthop'])
+                                                      test_routes)
         show_body = self.client.show_router(self.router['id'])
-        self.assertEqual(destination,
-                         show_body['router']['routes'][0]['destination'])
-        self.assertEqual(next_hop,
-                         show_body['router']['routes'][0]['nexthop'])
+        # Assert the number of routes
+        self.assertEqual(routes_num, len(extra_route['router']['routes']))
+        self.assertEqual(routes_num, len(show_body['router']['routes']))
+
+        routes = extra_route['router']['routes']
+        routes.sort(key=lambda x: x['destination'])
+        # Assert the nexthops & destination
+        for i in range(routes_num):
+            self.assertEqual(test_routes[i]['destination'],
+                             routes[i]['destination'])
+            self.assertEqual(test_routes[i]['nexthop'], routes[i]['nexthop'])
+
+        routes = show_body['router']['routes']
+        routes.sort(key=lambda x: x['destination'])
+        for i in range(routes_num):
+            self.assertEqual(test_routes[i]['destination'],
+                             routes[i]['destination'])
+            self.assertEqual(test_routes[i]['nexthop'], routes[i]['nexthop'])
 
     def _delete_extra_routes(self, router_id):
         self.client.delete_extra_routes(router_id)
diff --git a/tempest/api/volume/test_volumes_actions.py b/tempest/api/volume/test_volumes_actions.py
index 0ebcf3a..067c0c1 100644
--- a/tempest/api/volume/test_volumes_actions.py
+++ b/tempest/api/volume/test_volumes_actions.py
@@ -15,6 +15,7 @@
 
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 import testtools
@@ -37,7 +38,8 @@
         # Create a test shared instance
         srv_name = data_utils.rand_name(cls.__name__ + '-Instance')
         cls.server = cls.create_server(srv_name)
-        cls.servers_client.wait_for_server_status(cls.server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(cls.servers_client, cls.server['id'],
+                                       'ACTIVE')
 
         # Create a test shared volume for attach/detach tests
         cls.volume = cls.create_volume()
diff --git a/tempest/api/volume/test_volumes_negative.py b/tempest/api/volume/test_volumes_negative.py
index 9269cfb..5203444 100644
--- a/tempest/api/volume/test_volumes_negative.py
+++ b/tempest/api/volume/test_volumes_negative.py
@@ -19,6 +19,7 @@
 
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import test
 
 
@@ -183,7 +184,8 @@
         self.addCleanup(self.servers_client.wait_for_server_termination,
                         server['id'])
         self.addCleanup(self.servers_client.delete_server, server['id'])
-        self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
         self.assertRaises(lib_exc.NotFound,
                           self.client.attach_volume,
                           str(uuid.uuid4()),
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 340f019..1df1896 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -14,6 +14,7 @@
 
 from tempest.api.volume import base
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest import test
 
@@ -70,7 +71,8 @@
         server_name = data_utils.rand_name('instance')
         server = self.create_server(server_name)
         self.addCleanup(self.servers_client.delete_server, server['id'])
-        self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
         mountpoint = '/dev/%s' % CONF.compute.volume_device_name
         self.servers_client.attach_volume(
             server['id'], self.volume_origin['id'], mountpoint)
diff --git a/tempest/common/compute.py b/tempest/common/compute.py
index 5de4b0e..06e3493 100644
--- a/tempest/common/compute.py
+++ b/tempest/common/compute.py
@@ -18,6 +18,7 @@
 from tempest_lib.common.utils import data_utils
 
 from tempest.common import fixed_network
+from tempest.common import waiters
 from tempest import config
 
 CONF = config.CONF
@@ -98,8 +99,8 @@
     if 'wait_until' in kwargs:
         for server in servers:
             try:
-                clients.servers_client.wait_for_server_status(
-                    server['id'], kwargs['wait_until'])
+                waiters.wait_for_server_status(
+                    clients.servers_client, server['id'], kwargs['wait_until'])
 
                 # Multiple validatable servers are not supported for now. Their
                 # creation will fail with the condition above (l.58).
diff --git a/tempest/common/isolated_creds.py b/tempest/common/isolated_creds.py
index 2102638..ff4eda9 100644
--- a/tempest/common/isolated_creds.py
+++ b/tempest/common/isolated_creds.py
@@ -51,11 +51,21 @@
     def create_project(self, name, description):
         pass
 
-    def assign_user_role(self, user, project, role_name):
+    def _check_role_exists(self, role_name):
         try:
             roles = self._list_roles()
             role = next(r for r in roles if r['name'] == role_name)
         except StopIteration:
+            return None
+        return role
+
+    def create_user_role(self, role_name):
+        if not self._check_role_exists(role_name):
+            self.identity_client.create_role(role_name)
+
+    def assign_user_role(self, user, project, role_name):
+        role = self._check_role_exists(role_name)
+        if not role:
             msg = 'No "%s" role found' % role_name
             raise lib_exc.NotFound(msg)
         try:
@@ -196,16 +206,27 @@
         email = data_utils.rand_name(root) + suffix + "@example.com"
         user = self.creds_client.create_user(
             username, user_password, project, email)
+        role_assigned = False
         if admin:
             self.creds_client.assign_user_role(user, project,
                                                CONF.identity.admin_role)
+            role_assigned = True
         # Add roles specified in config file
         for conf_role in CONF.auth.tempest_roles:
             self.creds_client.assign_user_role(user, project, conf_role)
+            role_assigned = True
         # Add roles requested by caller
         if roles:
             for role in roles:
                 self.creds_client.assign_user_role(user, project, role)
+                role_assigned = True
+        # NOTE(mtreinish) For a user to have access to a project with v3 auth
+        # it must beassigned a role on the project. So we need to ensure that
+        # our newly created user has a role on the newly created project.
+        if self.identity_version == 'v3' and not role_assigned:
+            self.creds_client.create_user_role('Member')
+            self.creds_client.assign_user_role(user, project, 'Member')
+
         creds = self.creds_client.get_credentials(user, project, user_password)
         return cred_provider.TestResources(creds)
 
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index 95a8356..03e572f 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -25,6 +25,7 @@
 from tempest.common import fixed_network
 from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
+from tempest.common import waiters
 from tempest import config
 from tempest import exceptions
 from tempest.services.network import resources as net_resources
@@ -177,8 +178,9 @@
             cleanup_callable=self.delete_wrapper,
             cleanup_args=[self.servers_client.delete_server, server['id']])
         if wait_on_boot:
-            self.servers_client.wait_for_server_status(server_id=server['id'],
-                                                       status='ACTIVE')
+            waiters.wait_for_server_status(self.servers_client,
+                                           server_id=server['id'],
+                                           status='ACTIVE')
         # The instance retrieved on creation is missing network
         # details, necessitating retrieval after it becomes active to
         # ensure correct details.
@@ -443,7 +445,8 @@
                                     preserve_ephemeral=preserve_ephemeral,
                                     **rebuild_kwargs)
         if wait:
-            self.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+            waiters.wait_for_server_status(self.servers_client,
+                                           server_id, 'ACTIVE')
 
     def ping_ip_address(self, ip_address, should_succeed=True,
                         ping_timeout=None):
@@ -1226,8 +1229,8 @@
                                      BaremetalProvisionStates.ACTIVE,
                                      timeout=CONF.baremetal.active_timeout)
 
-        self.servers_client.wait_for_server_status(self.instance['id'],
-                                                   'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.instance['id'], 'ACTIVE')
         self.node = self.get_node(instance_id=self.instance['id'])
         self.instance = self.servers_client.show_server(self.instance['id'])
 
diff --git a/tempest/scenario/test_baremetal_basic_ops.py b/tempest/scenario/test_baremetal_basic_ops.py
index 9fdba39..346f56b 100644
--- a/tempest/scenario/test_baremetal_basic_ops.py
+++ b/tempest/scenario/test_baremetal_basic_ops.py
@@ -15,6 +15,7 @@
 
 from oslo_log import log as logging
 
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -52,11 +53,13 @@
         self.assertEqual(self.node['uuid'], node['uuid'])
         self.node = node
 
-        self.servers_client.wait_for_server_status(
+        waiters.wait_for_server_status(
+            self.servers_client,
             server_id=self.instance['id'],
             status='REBUILD',
             ready_wait=False)
-        self.servers_client.wait_for_server_status(
+        waiters.wait_for_server_status(
+            self.servers_client,
             server_id=self.instance['id'],
             status='ACTIVE')
 
diff --git a/tempest/scenario/test_large_ops.py b/tempest/scenario/test_large_ops.py
index 1a18be5..fa70d3f 100644
--- a/tempest/scenario/test_large_ops.py
+++ b/tempest/scenario/test_large_ops.py
@@ -18,6 +18,7 @@
 
 from tempest.common import fixed_network
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -76,7 +77,8 @@
         for server in self.servers:
             # Make sure nova list keeps working throughout the build process
             self.servers_client.list_servers()
-            self.servers_client.wait_for_server_status(server['id'], status)
+            waiters.wait_for_server_status(self.servers_client,
+                                           server['id'], status)
 
     def nova_boot(self):
         name = data_utils.rand_name('scenario-server')
diff --git a/tempest/scenario/test_minimum_basic.py b/tempest/scenario/test_minimum_basic.py
index 6057cd3..f868382 100644
--- a/tempest/scenario/test_minimum_basic.py
+++ b/tempest/scenario/test_minimum_basic.py
@@ -16,6 +16,7 @@
 from oslo_log import log as logging
 
 from tempest.common import custom_matchers
+from tempest.common import waiters
 from tempest import config
 from tempest import exceptions
 from tempest.scenario import manager
@@ -43,7 +44,8 @@
         server_id = self.server['id']
         # Raise on error defaults to True, which is consistent with the
         # original function from scenario tests here
-        self.servers_client.wait_for_server_status(server_id, status)
+        waiters.wait_for_server_status(self.servers_client,
+                                       server_id, status)
 
     def nova_keypair_add(self):
         self.keypair = self.create_keypair()
@@ -76,15 +78,6 @@
         volume = self.volumes_client.show_volume(self.volume['id'])
         self.assertEqual(self.volume, volume)
 
-    def nova_volume_attach(self):
-        volume_device_path = '/dev/' + CONF.compute.volume_device_name
-        volume = self.servers_client.attach_volume(
-            self.server['id'], self.volume['id'], volume_device_path)
-        self.assertEqual(self.volume['id'], volume['id'])
-        self.volumes_client.wait_for_volume_status(volume['id'], 'in-use')
-        # Refresh the volume after the attachment
-        self.volume = self.volumes_client.show_volume(volume['id'])
-
     def nova_reboot(self):
         self.servers_client.reboot(self.server['id'], 'SOFT')
         self._wait_for_server_status('ACTIVE')
@@ -94,14 +87,6 @@
         partitions = self.linux_client.get_partitions()
         self.assertEqual(1, partitions.count(CONF.compute.volume_device_name))
 
-    def nova_volume_detach(self):
-        self.servers_client.detach_volume(self.server['id'], self.volume['id'])
-        self.volumes_client.wait_for_volume_status(self.volume['id'],
-                                                   'available')
-
-        volume = self.volumes_client.show_volume(self.volume['id'])
-        self.assertEqual('available', volume['status'])
-
     def create_and_add_security_group(self):
         secgroup = self._create_security_group()
         self.servers_client.add_security_group(self.server['id'],
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index c864379..3d233d8 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -17,6 +17,7 @@
 import testtools
 
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -90,7 +91,8 @@
                                                servers=[self.server])
 
     def _wait_server_status_and_check_network_connectivity(self):
-        self.servers_client.wait_for_server_status(self.server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server['id'], 'ACTIVE')
         self._check_network_connectivity()
 
     @test.idempotent_id('61f1aa9a-1573-410e-9054-afa557cab021')
@@ -99,8 +101,8 @@
     def test_server_connectivity_stop_start(self):
         self._setup_network_and_servers()
         self.servers_client.stop(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'],
-                                                   'SHUTOFF')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server['id'], 'SHUTOFF')
         self._check_network_connectivity(should_connect=False)
         self.servers_client.start(self.server['id'])
         self._wait_server_status_and_check_network_connectivity()
@@ -128,7 +130,8 @@
     def test_server_connectivity_pause_unpause(self):
         self._setup_network_and_servers()
         self.servers_client.pause_server(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'], 'PAUSED')
+        waiters.wait_for_server_status(self.servers_client,
+                                       self.server['id'], 'PAUSED')
         self._check_network_connectivity(should_connect=False)
         self.servers_client.unpause_server(self.server['id'])
         self._wait_server_status_and_check_network_connectivity()
@@ -140,8 +143,8 @@
     def test_server_connectivity_suspend_resume(self):
         self._setup_network_and_servers()
         self.servers_client.suspend_server(self.server['id'])
-        self.servers_client.wait_for_server_status(self.server['id'],
-                                                   'SUSPENDED')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'SUSPENDED')
         self._check_network_connectivity(should_connect=False)
         self.servers_client.resume_server(self.server['id'])
         self._wait_server_status_and_check_network_connectivity()
@@ -157,7 +160,7 @@
             raise self.skipException(msg)
         self._setup_network_and_servers()
         self.servers_client.resize(self.server['id'], flavor_ref=resize_flavor)
-        self.servers_client.wait_for_server_status(self.server['id'],
-                                                   'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.servers_client, self.server['id'],
+                                       'VERIFY_RESIZE')
         self.servers_client.confirm_resize(self.server['id'])
         self._wait_server_status_and_check_network_connectivity()
diff --git a/tempest/scenario/test_server_advanced_ops.py b/tempest/scenario/test_server_advanced_ops.py
index 04d5c8b..e405cf5 100644
--- a/tempest/scenario/test_server_advanced_ops.py
+++ b/tempest/scenario/test_server_advanced_ops.py
@@ -16,6 +16,7 @@
 from oslo_log import log as logging
 import testtools
 
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -58,14 +59,14 @@
         LOG.debug("Resizing instance %s from flavor %s to flavor %s",
                   instance['id'], instance['flavor']['id'], resize_flavor)
         self.servers_client.resize(instance_id, resize_flavor)
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'VERIFY_RESIZE')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'VERIFY_RESIZE')
 
         LOG.debug("Confirming resize of instance %s", instance_id)
         self.servers_client.confirm_resize(instance_id)
 
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'ACTIVE')
 
     @test.idempotent_id('949da7d5-72c8-4808-8802-e3d70df98e2c')
     @testtools.skipUnless(CONF.compute_feature_enabled.suspend,
@@ -78,23 +79,23 @@
         LOG.debug("Suspending instance %s. Current status: %s",
                   instance_id, instance['status'])
         self.servers_client.suspend_server(instance_id)
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'SUSPENDED')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'SUSPENDED')
         fetched_instance = self.servers_client.show_server(instance_id)
         LOG.debug("Resuming instance %s. Current status: %s",
                   instance_id, fetched_instance['status'])
         self.servers_client.resume_server(instance_id)
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'ACTIVE')
         fetched_instance = self.servers_client.show_server(instance_id)
         LOG.debug("Suspending instance %s. Current status: %s",
                   instance_id, fetched_instance['status'])
         self.servers_client.suspend_server(instance_id)
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'SUSPENDED')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'SUSPENDED')
         fetched_instance = self.servers_client.show_server(instance_id)
         LOG.debug("Resuming instance %s. Current status: %s",
                   instance_id, fetched_instance['status'])
         self.servers_client.resume_server(instance_id)
-        self.servers_client.wait_for_server_status(instance_id,
-                                                   'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, instance_id,
+                                       'ACTIVE')
diff --git a/tempest/scenario/test_shelve_instance.py b/tempest/scenario/test_shelve_instance.py
index e674101..02ee7b9 100644
--- a/tempest/scenario/test_shelve_instance.py
+++ b/tempest/scenario/test_shelve_instance.py
@@ -16,6 +16,7 @@
 from oslo_log import log
 import testtools
 
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -50,15 +51,18 @@
         self.servers_client.shelve_server(server['id'])
         offload_time = CONF.compute.shelved_offload_time
         if offload_time >= 0:
-            self.servers_client.wait_for_server_status(
-                server['id'], 'SHELVED_OFFLOADED', extra_timeout=offload_time)
+            waiters.wait_for_server_status(self.servers_client, server['id'],
+                                           'SHELVED_OFFLOADED',
+                                           extra_timeout=offload_time)
         else:
-            self.servers_client.wait_for_server_status(server['id'], 'SHELVED')
+            waiters.wait_for_server_status(self.servers_client,
+                                           server['id'], 'SHELVED')
             self.servers_client.shelve_offload_server(server['id'])
-            self.servers_client.wait_for_server_status(server['id'],
-                                                       'SHELVED_OFFLOADED')
+            waiters.wait_for_server_status(self.servers_client, server['id'],
+                                           'SHELVED_OFFLOADED')
         self.servers_client.unshelve_server(server['id'])
-        self.servers_client.wait_for_server_status(server['id'], 'ACTIVE')
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
 
     @test.idempotent_id('1164e700-0af0-4a4c-8792-35909a88743c')
     @testtools.skipUnless(CONF.compute_feature_enabled.shelve,
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index 102e9a3..45b7b74 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -13,6 +13,7 @@
 from oslo_log import log
 
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 from tempest.scenario import manager
 from tempest import test
@@ -85,7 +86,8 @@
         for i in instances:
             self.servers_client.stop(i['id'])
         for i in instances:
-            self.servers_client.wait_for_server_status(i['id'], 'SHUTOFF')
+            waiters.wait_for_server_status(self.servers_client,
+                                           i['id'], 'SHUTOFF')
 
     def _detach_volumes(self, volumes):
         # NOTE(gfidente): two loops so we do not wait for the status twice
diff --git a/tempest/services/compute/json/agents_client.py b/tempest/services/compute/json/agents_client.py
index 525946e..1269991 100644
--- a/tempest/services/compute/json/agents_client.py
+++ b/tempest/services/compute/json/agents_client.py
@@ -24,7 +24,7 @@
     Tests Agents API
     """
 
-    def list_agents(self, params=None):
+    def list_agents(self, **params):
         """List all agent builds."""
         url = 'os-agents'
         if params:
diff --git a/tempest/services/compute/json/baremetal_nodes_client.py b/tempest/services/compute/json/baremetal_nodes_client.py
index 20be790..8165292 100644
--- a/tempest/services/compute/json/baremetal_nodes_client.py
+++ b/tempest/services/compute/json/baremetal_nodes_client.py
@@ -25,7 +25,7 @@
     Tests Baremetal API
     """
 
-    def list_baremetal_nodes(self, params=None):
+    def list_baremetal_nodes(self, **params):
         """List all baremetal nodes."""
         url = 'os-baremetal-nodes'
         if params:
diff --git a/tempest/services/compute/json/floating_ips_client.py b/tempest/services/compute/json/floating_ips_client.py
index 8923d64..2193949 100644
--- a/tempest/services/compute/json/floating_ips_client.py
+++ b/tempest/services/compute/json/floating_ips_client.py
@@ -23,7 +23,7 @@
 
 class FloatingIPsClient(service_client.ServiceClient):
 
-    def list_floating_ips(self, params=None):
+    def list_floating_ips(self, **params):
         """Returns a list of all floating IPs filtered by any parameters."""
         url = 'os-floating-ips'
         if params:
diff --git a/tempest/services/compute/json/hosts_client.py b/tempest/services/compute/json/hosts_client.py
index d597a06..752af68 100644
--- a/tempest/services/compute/json/hosts_client.py
+++ b/tempest/services/compute/json/hosts_client.py
@@ -21,7 +21,7 @@
 
 class HostsClient(service_client.ServiceClient):
 
-    def list_hosts(self, params=None):
+    def list_hosts(self, **params):
         """Lists all hosts."""
 
         url = 'os-hosts'
diff --git a/tempest/services/compute/json/migrations_client.py b/tempest/services/compute/json/migrations_client.py
index 2a2bcd2..06c8f13 100644
--- a/tempest/services/compute/json/migrations_client.py
+++ b/tempest/services/compute/json/migrations_client.py
@@ -21,7 +21,7 @@
 
 class MigrationsClient(service_client.ServiceClient):
 
-    def list_migrations(self, params=None):
+    def list_migrations(self, **params):
         """Lists all migrations."""
 
         url = 'os-migrations'
diff --git a/tempest/services/compute/json/security_groups_client.py b/tempest/services/compute/json/security_groups_client.py
index bee8d41..5a3d771 100644
--- a/tempest/services/compute/json/security_groups_client.py
+++ b/tempest/services/compute/json/security_groups_client.py
@@ -23,7 +23,7 @@
 
 class SecurityGroupsClient(service_client.ServiceClient):
 
-    def list_security_groups(self, params=None):
+    def list_security_groups(self, **params):
         """List all security groups for a user."""
 
         url = 'os-security-groups'
diff --git a/tempest/services/compute/json/servers_client.py b/tempest/services/compute/json/servers_client.py
index 90ebb9b..1159a58 100644
--- a/tempest/services/compute/json/servers_client.py
+++ b/tempest/services/compute/json/servers_client.py
@@ -22,7 +22,6 @@
 
 from tempest.api_schema.response.compute.v2_1 import servers as schema
 from tempest.common import service_client
-from tempest.common import waiters
 from tempest import exceptions
 
 
@@ -166,14 +165,6 @@
         self.validate_response(_schema, resp, body)
         return service_client.ResponseBody(resp, body)
 
-    def wait_for_server_status(self, server_id, status, extra_timeout=0,
-                               raise_on_error=True, ready_wait=True):
-        """Waits for a server to reach a given status."""
-        return waiters.wait_for_server_status(self, server_id, status,
-                                              extra_timeout=extra_timeout,
-                                              raise_on_error=raise_on_error,
-                                              ready_wait=ready_wait)
-
     def wait_for_server_termination(self, server_id, ignore_error=False):
         """Waits for server to reach termination."""
         start_time = int(time.time())
diff --git a/tempest/services/compute/json/services_client.py b/tempest/services/compute/json/services_client.py
index e1b48bb..699d3e7 100644
--- a/tempest/services/compute/json/services_client.py
+++ b/tempest/services/compute/json/services_client.py
@@ -23,7 +23,7 @@
 
 class ServicesClient(service_client.ServiceClient):
 
-    def list_services(self, params=None):
+    def list_services(self, **params):
         url = 'os-services'
         if params:
             url += '?%s' % urllib.urlencode(params)
diff --git a/tempest/services/compute/json/tenant_usages_client.py b/tempest/services/compute/json/tenant_usages_client.py
index cd9f3b6..72fcde2 100644
--- a/tempest/services/compute/json/tenant_usages_client.py
+++ b/tempest/services/compute/json/tenant_usages_client.py
@@ -22,7 +22,7 @@
 
 class TenantUsagesClient(service_client.ServiceClient):
 
-    def list_tenant_usages(self, params=None):
+    def list_tenant_usages(self, **params):
         url = 'os-simple-tenant-usage'
         if params:
             url += '?%s' % urllib.urlencode(params)
@@ -32,7 +32,7 @@
         self.validate_response(schema.list_tenant_usage, resp, body)
         return service_client.ResponseBodyList(resp, body['tenant_usages'][0])
 
-    def show_tenant_usage(self, tenant_id, params=None):
+    def show_tenant_usage(self, tenant_id, **params):
         url = 'os-simple-tenant-usage/%s' % tenant_id
         if params:
             url += '?%s' % urllib.urlencode(params)
diff --git a/tempest/services/network/json/network_client.py b/tempest/services/network/json/network_client.py
index aa0c583..65f3aa7 100644
--- a/tempest/services/network/json/network_client.py
+++ b/tempest/services/network/json/network_client.py
@@ -594,12 +594,11 @@
         self.expected_success(204, resp.status)
         return service_client.ResponseBody(resp, body)
 
-    def update_extra_routes(self, router_id, nexthop, destination):
+    def update_extra_routes(self, router_id, routes):
         uri = '%s/routers/%s' % (self.uri_prefix, router_id)
         put_body = {
             'router': {
-                'routes': [{'nexthop': nexthop,
-                            "destination": destination}]
+                'routes': routes
             }
         }
         body = json.dumps(put_body)
diff --git a/tempest/stress/actions/server_create_destroy.py b/tempest/stress/actions/server_create_destroy.py
index d0e4eea..9f41526 100644
--- a/tempest/stress/actions/server_create_destroy.py
+++ b/tempest/stress/actions/server_create_destroy.py
@@ -13,6 +13,7 @@
 #    limitations under the License.
 
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 import tempest.stress.stressaction as stressaction
 
@@ -31,8 +32,8 @@
         server = self.manager.servers_client.create_server(
             name, self.image, self.flavor)
         server_id = server['id']
-        self.manager.servers_client.wait_for_server_status(server_id,
-                                                           'ACTIVE')
+        waiters.wait_for_server_status(self.manager.servers_client, server_id,
+                                       'ACTIVE')
         self.logger.info("created %s" % server_id)
         self.logger.info("deleting %s" % name)
         self.manager.servers_client.delete_server(server_id)
diff --git a/tempest/stress/actions/ssh_floating.py b/tempest/stress/actions/ssh_floating.py
index 9e540fa..4a27466 100644
--- a/tempest/stress/actions/ssh_floating.py
+++ b/tempest/stress/actions/ssh_floating.py
@@ -14,6 +14,7 @@
 import subprocess
 
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 import tempest.stress.stressaction as stressaction
 import tempest.test
@@ -79,8 +80,8 @@
                                               **vm_args)
         self.server_id = server['id']
         if self.wait_after_vm_create:
-            self.manager.servers_client.wait_for_server_status(self.server_id,
-                                                               'ACTIVE')
+            waiters.wait_for_server_status(self.manager.servers_client,
+                                           self.server_id, 'ACTIVE')
 
     def _destroy_vm(self):
         self.logger.info("deleting %s" % self.server_id)
@@ -172,8 +173,8 @@
             self._create_vm()
         if self.reboot:
             self.manager.servers_client.reboot(self.server_id, 'HARD')
-            self.manager.servers_client.wait_for_server_status(self.server_id,
-                                                               'ACTIVE')
+            waiters.wait_for_server_status(self.manager.servers_client,
+                                           self.server_id, 'ACTIVE')
 
         self.run_core()
 
diff --git a/tempest/stress/actions/volume_attach_delete.py b/tempest/stress/actions/volume_attach_delete.py
index a5e393f..d6965c7 100644
--- a/tempest/stress/actions/volume_attach_delete.py
+++ b/tempest/stress/actions/volume_attach_delete.py
@@ -12,6 +12,7 @@
 #    limitations under the License.
 
 from tempest.common.utils import data_utils
+from tempest.common import waiters
 from tempest import config
 import tempest.stress.stressaction as stressaction
 
@@ -40,7 +41,8 @@
         server = self.manager.servers_client.create_server(
             vm_name, self.image, self.flavor)
         server_id = server['id']
-        self.manager.servers_client.wait_for_server_status(server_id, 'ACTIVE')
+        waiters.wait_for_server_status(self.manager.servers_client, server_id,
+                                       'ACTIVE')
         self.logger.info("created vm %s" % server_id)
 
         # Step 3: attach volume to vm
diff --git a/tempest/stress/actions/volume_attach_verify.py b/tempest/stress/actions/volume_attach_verify.py
index 1cd96ed..3ba2a91 100644
--- a/tempest/stress/actions/volume_attach_verify.py
+++ b/tempest/stress/actions/volume_attach_verify.py
@@ -14,6 +14,7 @@
 
 from tempest.common.utils import data_utils
 from tempest.common.utils.linux import remote_client
+from tempest.common import waiters
 from tempest import config
 import tempest.stress.stressaction as stressaction
 import tempest.test
@@ -41,8 +42,8 @@
                                               self.flavor,
                                               **vm_args)
         self.server_id = server['id']
-        self.manager.servers_client.wait_for_server_status(self.server_id,
-                                                           'ACTIVE')
+        waiters.wait_for_server_status(self.manager.servers_client,
+                                       self.server_id, 'ACTIVE')
 
     def _destroy_vm(self):
         self.logger.info("deleting server: %s" % self.server_id)
diff --git a/tempest/stress/cleanup.py b/tempest/stress/cleanup.py
index d9b430e..b785156 100644
--- a/tempest/stress/cleanup.py
+++ b/tempest/stress/cleanup.py
@@ -47,7 +47,7 @@
             pass
 
     secgrp_client = admin_manager.security_groups_client
-    secgrp = secgrp_client.list_security_groups({"all_tenants": True})
+    secgrp = secgrp_client.list_security_groups(all_tenants=True)
     secgrp_del = [grp for grp in secgrp if grp['name'] != 'default']
     LOG.info("Cleanup::remove %s Security Group" % len(secgrp_del))
     for g in secgrp_del:
diff --git a/tempest/test_discover/plugins.py b/tempest/test_discover/plugins.py
index d5273d5..2701f02 100644
--- a/tempest/test_discover/plugins.py
+++ b/tempest/test_discover/plugins.py
@@ -13,12 +13,16 @@
 # under the License.
 
 import abc
+import logging
 
 import six
 import stevedore
 from tempest_lib.common.utils import misc
 
 
+LOG = logging.getLogger(__name__)
+
+
 @six.add_metaclass(abc.ABCMeta)
 class TempestPlugin(object):
     """A TempestPlugin class provides the basic hooks for an external
@@ -47,7 +51,13 @@
     def __init__(self):
         self.ext_plugins = stevedore.ExtensionManager(
             'tempest.test_plugins', invoke_on_load=True,
-            propagate_map_exceptions=True)
+            propagate_map_exceptions=True,
+            on_load_failure_callback=self.failure_hook)
+
+    @staticmethod
+    def failure_hook(_, ep, err):
+        LOG.error('Could not load %r: %s', ep.name, err)
+        raise err
 
     def get_plugin_load_tests_tuple(self):
         load_tests_dict = {}
diff --git a/tempest/test_discover/test_discover.py b/tempest/test_discover/test_discover.py
index 86aa855..dac7d91 100644
--- a/tempest/test_discover/test_discover.py
+++ b/tempest/test_discover/test_discover.py
@@ -48,8 +48,8 @@
     for plugin in plugin_load_tests:
         test_dir, top_path = plugin_load_tests[plugin]
         if not pattern:
-            suite.addTests(loader.discover(test_dir, top_level=top_path))
+            suite.addTests(loader.discover(test_dir, top_level_dir=top_path))
         else:
             suite.addTests(loader.discover(test_dir, pattern=pattern,
-                                           top_level=top_path))
+                                           top_level_dir=top_path))
     return suite
diff --git a/tempest/tests/services/__init__.py b/tempest/tests/services/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/tests/services/__init__.py
diff --git a/tempest/tests/services/compute/__init__.py b/tempest/tests/services/compute/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tempest/tests/services/compute/__init__.py
diff --git a/tempest/tests/services/compute/test_agents_client.py b/tempest/tests/services/compute/test_agents_client.py
new file mode 100644
index 0000000..e8ea525
--- /dev/null
+++ b/tempest/tests/services/compute/test_agents_client.py
@@ -0,0 +1,50 @@
+# Copyright 2015 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import httplib2
+
+from oslotest import mockpatch
+
+from tempest.services.compute.json import agents_client
+from tempest.tests import base
+from tempest.tests import fake_auth_provider
+from tempest.tests import fake_config
+
+
+class TestAgentsClient(base.TestCase):
+
+    def setUp(self):
+        super(TestAgentsClient, self).setUp()
+        self.useFixture(fake_config.ConfigFixture())
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = agents_client.AgentsClient(fake_auth,
+                                                 'compute', 'regionOne')
+
+    def _test_list_agents(self, bytes_body=False):
+        if bytes_body:
+            body = bytes(b'{"agents": []}')
+        else:
+            body = '{"agents": []}'
+        expected = []
+        response = (httplib2.Response({'status': 200}), body)
+        self.useFixture(mockpatch.Patch(
+            'tempest.common.service_client.ServiceClient.get',
+            return_value=response))
+        self.assertEqual(expected, self.client.list_agents())
+
+    def test_list_agents_with_str_body(self):
+        self._test_list_agents()
+
+    def test_list_agents_with_bytes_body(self):
+        self._test_list_agents(bytes_body=True)
diff --git a/test-requirements.txt b/test-requirements.txt
index 7115168..8fcf071 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -10,4 +10,4 @@
 mock>=1.1;python_version!='2.6'
 mock==1.0.1;python_version=='2.6'
 coverage>=3.6
-oslotest>=1.5.1 # Apache-2.0
+oslotest>=1.7.0 # Apache-2.0