diff --git a/releasenotes/notes/14.0.0-remo-stress-tests-81052b211ad95d2e.yaml b/releasenotes/notes/14.0.0-remo-stress-tests-81052b211ad95d2e.yaml
index aa3a78e..389b29f 100644
--- a/releasenotes/notes/14.0.0-remo-stress-tests-81052b211ad95d2e.yaml
+++ b/releasenotes/notes/14.0.0-remo-stress-tests-81052b211ad95d2e.yaml
@@ -1,4 +1,13 @@
 ---
+prelude: >
+  This release is marking the end of Liberty release support in Tempest
 upgrade:
   - The Stress tests framework and all the stress tests have been removed.
+other:
+  - |
+    OpenStack releases supported at this time are **Mitaka** and **Newton**.
 
+    The release under current development as of this tag is Ocata, meaning that
+    every Tempest commit is also tested against master during the Ocata cycle.
+    However, this does not necessarily mean that using Tempest as of this tag
+    will work against a Ocata (or future releases) cloud.
diff --git a/releasenotes/notes/15.0.0-remove-deprecated-compute-validation-config-options-e3d1b89ce074d71c.yaml b/releasenotes/notes/15.0.0-remove-deprecated-compute-validation-config-options-e3d1b89ce074d71c.yaml
index 8665b8b..104bf27 100644
--- a/releasenotes/notes/15.0.0-remove-deprecated-compute-validation-config-options-e3d1b89ce074d71c.yaml
+++ b/releasenotes/notes/15.0.0-remove-deprecated-compute-validation-config-options-e3d1b89ce074d71c.yaml
@@ -1,4 +1,6 @@
 ---
+prelude: >
+    This release is marking the start of Ocata release support in Tempest
 upgrade:
   - |
     Below deprecated config options from compute group have been removed.
@@ -11,4 +13,13 @@
     - ``compute.ping_size `` (available as ``validation.ping_size``)
     - ``compute.ping_count `` (available as ``validation.ping_count``)
     - ``compute.floating_ip_range `` (available as ``validation.floating_ip_range``)
+other:
+  - |
+    OpenStack releases supported at this time are **Mitaka**, **Newton**,
+    and **Ocata**.
 
+    The release under current development as of this tag is Pike,
+    meaning that every Tempest commit is also tested against master during
+    the Pike cycle. However, this does not necessarily mean that using
+    Tempest as of this tag will work against a Pike (or future releases)
+    cloud.
diff --git a/releasenotes/notes/15.0.0-start-of-pike-support-4925678d477b0745.yaml b/releasenotes/notes/15.0.0-start-of-pike-support-4925678d477b0745.yaml
deleted file mode 100644
index 5555949..0000000
--- a/releasenotes/notes/15.0.0-start-of-pike-support-4925678d477b0745.yaml
+++ /dev/null
@@ -1,13 +0,0 @@
----
-prelude: >
-    This release is marking the start of Ocata release support in Tempest
-other:
-  - |
-    OpenStack releases supported at this time are **Mitaka**, **Newton**,
-    and **Ocata**.
-
-    The release under current development as of this tag is Pike,
-    meaning that every Tempest commit is also tested against master during
-    the Pike cycle. However, this does not necessarily mean that using
-    Tempest as of this tag will work against a Pike (or future releases)
-    cloud.
diff --git a/tempest/api/compute/admin/test_flavors_access.py b/tempest/api/compute/admin/test_flavors_access.py
index 04b0c2d..a9daba8 100644
--- a/tempest/api/compute/admin/test_flavors_access.py
+++ b/tempest/api/compute/admin/test_flavors_access.py
@@ -14,7 +14,6 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.lib import decorators
 from tempest import test
 
@@ -47,51 +46,37 @@
     def test_flavor_access_list_with_private_flavor(self):
         # Test to make sure that list flavor access on a newly created
         # private flavor will return an empty access list
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
+
         flavor_access = (self.admin_flavors_client.list_flavor_access(
-            new_flavor_id)['flavor_access'])
+                         flavor['id'])['flavor_access'])
         self.assertEqual(len(flavor_access), 0, str(flavor_access))
 
     @decorators.idempotent_id('59e622f6-bdf6-45e3-8ba8-fedad905a6b4')
     def test_flavor_access_add_remove(self):
         # Test to add and remove flavor access to a given tenant.
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
+
         # Add flavor access to a tenant.
         resp_body = {
             "tenant_id": str(self.tenant_id),
-            "flavor_id": str(new_flavor['id']),
+            "flavor_id": str(flavor['id']),
         }
         add_body = (self.admin_flavors_client.add_flavor_access(
-            new_flavor['id'], self.tenant_id)['flavor_access'])
+            flavor['id'], self.tenant_id)['flavor_access'])
         self.assertIn(resp_body, add_body)
 
         # The flavor is present in list.
         flavors = self.flavors_client.list_flavors(detail=True)['flavors']
-        self.assertIn(new_flavor['id'], map(lambda x: x['id'], flavors))
+        self.assertIn(flavor['id'], map(lambda x: x['id'], flavors))
 
         # Remove flavor access from a tenant.
         remove_body = (self.admin_flavors_client.remove_flavor_access(
-            new_flavor['id'], self.tenant_id)['flavor_access'])
+            flavor['id'], self.tenant_id)['flavor_access'])
         self.assertNotIn(resp_body, remove_body)
 
         # The flavor is not present in list.
         flavors = self.flavors_client.list_flavors(detail=True)['flavors']
-        self.assertNotIn(new_flavor['id'], map(lambda x: x['id'], flavors))
+        self.assertNotIn(flavor['id'], map(lambda x: x['id'], flavors))
diff --git a/tempest/api/compute/admin/test_flavors_access_negative.py b/tempest/api/compute/admin/test_flavors_access_negative.py
index 9fe1f74..33d5d73 100644
--- a/tempest/api/compute/admin/test_flavors_access_negative.py
+++ b/tempest/api/compute/admin/test_flavors_access_negative.py
@@ -14,7 +14,6 @@
 #    under the License.
 
 from tempest.api.compute import base
-from tempest.common.utils import data_utils
 from tempest.lib import decorators
 from tempest.lib import exceptions as lib_exc
 from tempest import test
@@ -49,108 +48,69 @@
     @decorators.idempotent_id('0621c53e-d45d-40e7-951d-43e5e257b272')
     def test_flavor_access_list_with_public_flavor(self):
         # Test to list flavor access with exceptions by querying public flavor
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='True')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='True')
         self.assertRaises(lib_exc.NotFound,
                           self.admin_flavors_client.list_flavor_access,
-                          new_flavor_id)
+                          flavor['id'])
 
     @test.attr(type=['negative'])
     @decorators.idempotent_id('41eaaade-6d37-4f28-9c74-f21b46ca67bd')
     def test_flavor_non_admin_add(self):
         # Test to add flavor access as a user without admin privileges.
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
         self.assertRaises(lib_exc.Forbidden,
                           self.flavors_client.add_flavor_access,
-                          new_flavor['id'],
+                          flavor['id'],
                           self.tenant_id)
 
     @test.attr(type=['negative'])
     @decorators.idempotent_id('073e79a6-c311-4525-82dc-6083d919cb3a')
     def test_flavor_non_admin_remove(self):
         # Test to remove flavor access as a user without admin privileges.
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
+
         # Add flavor access to a tenant.
-        self.admin_flavors_client.add_flavor_access(new_flavor['id'],
+        self.admin_flavors_client.add_flavor_access(flavor['id'],
                                                     self.tenant_id)
         self.addCleanup(self.admin_flavors_client.remove_flavor_access,
-                        new_flavor['id'], self.tenant_id)
+                        flavor['id'], self.tenant_id)
         self.assertRaises(lib_exc.Forbidden,
                           self.flavors_client.remove_flavor_access,
-                          new_flavor['id'],
+                          flavor['id'],
                           self.tenant_id)
 
     @test.attr(type=['negative'])
     @decorators.idempotent_id('f3592cc0-0306-483c-b210-9a7b5346eddc')
     def test_add_flavor_access_duplicate(self):
         # Create a new flavor.
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
 
         # Add flavor access to a tenant.
-        self.admin_flavors_client.add_flavor_access(new_flavor['id'],
+        self.admin_flavors_client.add_flavor_access(flavor['id'],
                                                     self.tenant_id)
         self.addCleanup(self.admin_flavors_client.remove_flavor_access,
-                        new_flavor['id'], self.tenant_id)
+                        flavor['id'], self.tenant_id)
 
         # An exception should be raised when adding flavor access to the same
         # tenant
         self.assertRaises(lib_exc.Conflict,
                           self.admin_flavors_client.add_flavor_access,
-                          new_flavor['id'],
+                          flavor['id'],
                           self.tenant_id)
 
     @test.attr(type=['negative'])
     @decorators.idempotent_id('1f710927-3bc7-4381-9f82-0ca6e42644b7')
     def test_remove_flavor_access_not_found(self):
         # Create a new flavor.
-        flavor_name = data_utils.rand_name(self.flavor_name_prefix)
-        new_flavor_id = data_utils.rand_int_id(start=1000)
-        new_flavor = self.admin_flavors_client.create_flavor(
-            name=flavor_name,
-            ram=self.ram, vcpus=self.vcpus,
-            disk=self.disk,
-            id=new_flavor_id,
-            is_public='False')['flavor']
-        self.addCleanup(self.admin_flavors_client.delete_flavor,
-                        new_flavor['id'])
+        flavor = self.create_flavor(ram=self.ram, vcpus=self.vcpus,
+                                    disk=self.disk, is_public='False')
 
         # An exception should be raised when flavor access is not found
         self.assertRaises(lib_exc.NotFound,
                           self.admin_flavors_client.remove_flavor_access,
-                          new_flavor['id'],
+                          flavor['id'],
                           self.os_alt.servers_client.tenant_id)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 706b859..55cc293 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -445,8 +445,8 @@
         attach_kwargs = dict(volumeId=volume['id'])
         if device:
             attach_kwargs['device'] = device
-        self.servers_client.attach_volume(
-            server['id'], **attach_kwargs)
+        attachment = self.servers_client.attach_volume(
+            server['id'], **attach_kwargs)['volumeAttachment']
         # On teardown detach the volume and wait for it to be available. This
         # is so we don't error out when trying to delete the volume during
         # teardown.
@@ -459,6 +459,7 @@
                         server['id'], volume['id'])
         waiters.wait_for_volume_resource_status(self.volumes_client,
                                                 volume['id'], 'in-use')
+        return attachment
 
 
 class BaseV2ComputeAdminTest(BaseV2ComputeTest):
diff --git a/tempest/api/compute/servers/test_server_rescue.py b/tempest/api/compute/servers/test_server_rescue.py
index 209ab38..75ba15c 100644
--- a/tempest/api/compute/servers/test_server_rescue.py
+++ b/tempest/api/compute/servers/test_server_rescue.py
@@ -58,10 +58,8 @@
         cls.password = data_utils.rand_password()
         # Server for positive tests
         server = cls.create_test_server(adminPass=cls.password,
-                                        wait_until='BUILD')
+                                        wait_until='ACTIVE')
         cls.server_id = server['id']
-        waiters.wait_for_server_status(cls.servers_client, cls.server_id,
-                                       'ACTIVE')
 
     @classmethod
     def resource_cleanup(cls):
diff --git a/tempest/api/compute/volumes/test_attach_volume.py b/tempest/api/compute/volumes/test_attach_volume.py
index 5304944..73c7614 100644
--- a/tempest/api/compute/volumes/test_attach_volume.py
+++ b/tempest/api/compute/volumes/test_attach_volume.py
@@ -22,7 +22,6 @@
 from tempest.common import waiters
 from tempest import config
 from tempest.lib import decorators
-from tempest.lib import exceptions as lib_exc
 
 CONF = config.CONF
 
@@ -61,38 +60,14 @@
             server['id'])['addresses']
         return server
 
-    def _detach_volume(self, server_id, volume_id):
-        try:
-            self.servers_client.detach_volume(server_id, volume_id)
-            waiters.wait_for_volume_resource_status(self.volumes_client,
-                                                    volume_id, 'available')
-        except lib_exc.NotFound:
-            LOG.warning("Unable to detach volume %s from server %s "
-                        "possibly it was already detached", volume_id,
-                        server_id)
-
-    def _attach_volume(self, server_id, volume_id, device=None):
-        # Attach the volume to the server
-        kwargs = {'volumeId': volume_id}
-        if device:
-            kwargs.update({'device': '/dev/%s' % device})
-        attachment = self.servers_client.attach_volume(
-            server_id, **kwargs)['volumeAttachment']
-        waiters.wait_for_volume_resource_status(self.volumes_client,
-                                                volume_id, 'in-use')
-        self.addCleanup(self._detach_volume, server_id,
-                        volume_id)
-
-        return attachment
-
     @decorators.idempotent_id('52e9045a-e90d-4c0d-9087-79d657faffff')
     def test_attach_detach_volume(self):
         # Stop and Start a server with an attached volume, ensuring that
         # the volume remains attached.
         server = self._create_server()
         volume = self.create_volume()
-        attachment = self._attach_volume(server['id'], volume['id'],
-                                         device=self.device)
+        attachment = self.attach_volume(server, volume,
+                                        device=('/dev/%s' % self.device))
 
         self.servers_client.stop_server(server['id'])
         waiters.wait_for_server_status(self.servers_client, server['id'],
@@ -115,7 +90,10 @@
             device_name_to_match = '\n' + self.device + ' '
             self.assertIn(device_name_to_match, disks)
 
-        self._detach_volume(server['id'], attachment['volumeId'])
+        self.servers_client.detach_volume(server['id'], attachment['volumeId'])
+        waiters.wait_for_volume_resource_status(
+            self.volumes_client, attachment['volumeId'], 'available')
+
         self.servers_client.stop_server(server['id'])
         waiters.wait_for_server_status(self.servers_client, server['id'],
                                        'SHUTOFF')
@@ -141,8 +119,8 @@
         # List volume attachment of the server
         server = self._create_server()
         volume = self.create_volume()
-        attachment = self._attach_volume(server['id'], volume['id'],
-                                         device=self.device)
+        attachment = self.attach_volume(server, volume,
+                                        device=('/dev/%s' % self.device))
         body = self.servers_client.list_volume_attachments(
             server['id'])['volumeAttachments']
         self.assertEqual(1, len(body))
@@ -165,8 +143,8 @@
         server = self._create_server()
         volume_1st = self.create_volume()
         volume_2nd = self.create_volume()
-        attachment_1st = self._attach_volume(server['id'], volume_1st['id'])
-        attachment_2nd = self._attach_volume(server['id'], volume_2nd['id'])
+        attachment_1st = self.attach_volume(server, volume_1st)
+        attachment_2nd = self.attach_volume(server, volume_2nd)
 
         body = self.servers_client.list_volume_attachments(
             server['id'])['volumeAttachments']
@@ -253,8 +231,8 @@
         volume = self.create_volume()
         num_vol = self._count_volumes(server)
         self._shelve_server(server)
-        attachment = self._attach_volume(server['id'], volume['id'],
-                                         device=self.device)
+        attachment = self.attach_volume(server, volume,
+                                        device=('/dev/%s' % self.device))
 
         # Unshelve the instance and check that attached volume exists
         self._unshelve_server_and_check_volumes(server, num_vol + 1)
@@ -279,9 +257,12 @@
         volume = self.create_volume()
         num_vol = self._count_volumes(server)
         self._shelve_server(server)
-        self._attach_volume(server['id'], volume['id'], device=self.device)
-        # Detach the volume
-        self._detach_volume(server['id'], volume['id'])
+
+        # Attach and then detach the volume
+        self.attach_volume(server, volume, device=('/dev/%s' % self.device))
+        self.servers_client.detach_volume(server['id'], volume['id'])
+        waiters.wait_for_volume_resource_status(self.volumes_client,
+                                                volume['id'], 'available')
 
         # Unshelve the instance and check that we have the expected number of
         # volume(s)
diff --git a/tempest/api/identity/admin/v3/test_roles.py b/tempest/api/identity/admin/v3/test_roles.py
index 445d928..b7b6596 100644
--- a/tempest/api/identity/admin/v3/test_roles.py
+++ b/tempest/api/identity/admin/v3/test_roles.py
@@ -306,3 +306,66 @@
         roles_ids = [assignment['role']['id']
                      for assignment in role_assignments]
         self.assertIn(self.roles[0]['id'], roles_ids)
+
+    @decorators.idempotent_id('d92a41d2-5501-497a-84bb-6e294330e8f8')
+    def test_domain_roles_create_delete(self):
+        domain_role = self.roles_client.create_role(
+            name=data_utils.rand_name('domain_role'),
+            domain_id=self.domain['id'])['role']
+        self.addCleanup(
+            test_utils.call_and_ignore_notfound_exc,
+            self.roles_client.delete_role,
+            domain_role['id'])
+
+        domain_roles = self.roles_client.list_roles(
+            domain_id=self.domain['id'])['roles']
+        self.assertEqual(1, len(domain_roles))
+        self.assertIn(domain_role, domain_roles)
+
+        self.roles_client.delete_role(domain_role['id'])
+        domain_roles = self.roles_client.list_roles(
+            domain_id=self.domain['id'])['roles']
+        self.assertEmpty(domain_roles)
+
+    @decorators.idempotent_id('eb1e1c24-1bc4-4d47-9748-e127a1852c82')
+    def test_implied_domain_roles(self):
+        # Create two roles in the same domain
+        domain_role1 = self.setup_test_role(domain_id=self.domain['id'])
+        domain_role2 = self.setup_test_role(domain_id=self.domain['id'])
+
+        # Check if we can create an inference rule from roles in the same
+        # domain
+        self._create_implied_role(domain_role1['id'], domain_role2['id'])
+
+        # Create another role in a different domain
+        domain2 = self.setup_test_domain()
+        domain_role3 = self.setup_test_role(domain_id=domain2['id'])
+
+        # Check if we can create cross domain implied roles
+        self._create_implied_role(domain_role1['id'], domain_role3['id'])
+
+        # Finally, we also should be able to create an implied from a
+        # domain role to a global one
+        self._create_implied_role(domain_role1['id'], self.role['id'])
+
+    @decorators.idempotent_id('3859df7e-5b78-4e4d-b10e-214c8953842a')
+    def test_assignments_for_domain_roles(self):
+        domain_role = self.setup_test_role(domain_id=self.domain['id'])
+
+        # Create a grant using "domain_role"
+        self.roles_client.create_user_role_on_project(
+            self.project['id'], self.user_body['id'], domain_role['id'])
+        self.addCleanup(
+            self.roles_client.delete_role_from_user_on_project,
+            self.project['id'], self.user_body['id'], domain_role['id'])
+
+        # NOTE(rodrigods): Regular roles would appear in the effective
+        # list of role assignments (meaning the role would be returned in
+        # a token) as a result from the grant above. This is not the case
+        # for domain roles, they should not appear in the effective role
+        # assignments list.
+        params = {'scope.project.id': self.project['id'],
+                  'user.id': self.user_body['id']}
+        role_assignments = self.role_assignments.list_role_assignments(
+            effective=True, **params)['role_assignments']
+        self.assertEmpty(role_assignments)
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 3bbe47a..80e7936 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -75,10 +75,13 @@
         self.addCleanup(self.users_client.delete_user, user['id'])
         return user
 
-    def setup_test_role(self):
+    def setup_test_role(self, domain_id=None):
         """Set up a test role."""
-        role = self.roles_client.create_role(
-            name=data_utils.rand_name('test_role'))['role']
+        params = {'name': data_utils.rand_name('test_role')}
+        if domain_id:
+            params['domain_id'] = domain_id
+
+        role = self.roles_client.create_role(**params)['role']
         # Delete the role at the end of the test
         self.addCleanup(self.roles_client.delete_role, role['id'])
         return role
diff --git a/tempest/api/volume/admin/v2/test_snapshot_manage.py b/tempest/api/volume/admin/v2/test_snapshot_manage.py
index eed7dd1..e8bd477 100644
--- a/tempest/api/volume/admin/v2/test_snapshot_manage.py
+++ b/tempest/api/volume/admin/v2/test_snapshot_manage.py
@@ -61,8 +61,8 @@
         new_snapshot = self.admin_snapshot_manage_client.manage_snapshot(
             volume_id=volume['id'],
             ref={'source-name': snapshot_ref})['snapshot']
-        self.addCleanup(self.delete_snapshot,
-                        self.admin_snapshots_client, new_snapshot['id'])
+        self.addCleanup(self.delete_snapshot, new_snapshot['id'],
+                        self.admin_snapshots_client)
 
         # Wait for the snapshot to be available after manage operation
         waiters.wait_for_volume_resource_status(self.admin_snapshots_client,
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index f8c435f..fd10fb3 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -145,7 +145,7 @@
 
         snapshot = cls.snapshots_client.create_snapshot(
             volume_id=volume_id, **kwargs)['snapshot']
-        cls.snapshots.append(snapshot)
+        cls.snapshots.append(snapshot['id'])
         waiters.wait_for_volume_resource_status(cls.snapshots_client,
                                                 snapshot['id'], 'available')
         return snapshot
@@ -171,11 +171,14 @@
         client.delete_volume(volume_id)
         client.wait_for_resource_deletion(volume_id)
 
-    @staticmethod
-    def delete_snapshot(client, snapshot_id):
+    def delete_snapshot(self, snapshot_id, snapshots_client=None):
         """Delete snapshot by the given client"""
-        client.delete_snapshot(snapshot_id)
-        client.wait_for_resource_deletion(snapshot_id)
+        if snapshots_client is None:
+            snapshots_client = self.snapshots_client
+        snapshots_client.delete_snapshot(snapshot_id)
+        snapshots_client.wait_for_resource_deletion(snapshot_id)
+        if snapshot_id in self.snapshots:
+            self.snapshots.remove(snapshot_id)
 
     def attach_volume(self, server_id, volume_id):
         """Attach a volume to a server"""
@@ -207,12 +210,12 @@
     def clear_snapshots(cls):
         for snapshot in cls.snapshots:
             test_utils.call_and_ignore_notfound_exc(
-                cls.snapshots_client.delete_snapshot, snapshot['id'])
+                cls.snapshots_client.delete_snapshot, snapshot)
 
         for snapshot in cls.snapshots:
             test_utils.call_and_ignore_notfound_exc(
                 cls.snapshots_client.wait_for_resource_deletion,
-                snapshot['id'])
+                snapshot)
 
     def create_server(self, **kwargs):
         name = kwargs.pop(
diff --git a/tempest/api/volume/test_volumes_snapshots.py b/tempest/api/volume/test_volumes_snapshots.py
index 19cd98f..5abda5e 100644
--- a/tempest/api/volume/test_volumes_snapshots.py
+++ b/tempest/api/volume/test_volumes_snapshots.py
@@ -36,12 +36,6 @@
         cls.name_field = cls.special_fields['name_field']
         cls.descrip_field = cls.special_fields['descrip_field']
 
-    def cleanup_snapshot(self, snapshot):
-        # Delete the snapshot
-        self.snapshots_client.delete_snapshot(snapshot['id'])
-        self.snapshots_client.wait_for_resource_deletion(snapshot['id'])
-        self.snapshots.remove(snapshot)
-
     @decorators.idempotent_id('b467b54c-07a4-446d-a1cf-651dedcc3ff1')
     @test.services('compute')
     def test_snapshot_create_with_volume_in_use(self):
@@ -54,7 +48,7 @@
         snapshot = self.create_snapshot(self.volume_origin['id'],
                                         force=True)
         # Delete the snapshot
-        self.cleanup_snapshot(snapshot)
+        self.delete_snapshot(snapshot['id'])
 
     @decorators.idempotent_id('8567b54c-4455-446d-a1cf-651ddeaa3ff2')
     @test.services('compute')
@@ -70,9 +64,9 @@
 
         # Delete the snapshots. Some snapshot implementations can take
         # different paths according to order they are deleted.
-        self.cleanup_snapshot(snapshot1)
-        self.cleanup_snapshot(snapshot3)
-        self.cleanup_snapshot(snapshot2)
+        self.delete_snapshot(snapshot1['id'])
+        self.delete_snapshot(snapshot3['id'])
+        self.delete_snapshot(snapshot2['id'])
 
     @decorators.idempotent_id('5210a1de-85a0-11e6-bb21-641c676a5d61')
     @test.services('compute')
@@ -91,9 +85,9 @@
 
         # Delete the snapshots. Some snapshot implementations can take
         # different paths according to order they are deleted.
-        self.cleanup_snapshot(snapshot3)
-        self.cleanup_snapshot(snapshot1)
-        self.cleanup_snapshot(snapshot2)
+        self.delete_snapshot(snapshot3['id'])
+        self.delete_snapshot(snapshot1['id'])
+        self.delete_snapshot(snapshot2['id'])
 
     @decorators.idempotent_id('2a8abbe4-d871-46db-b049-c41f5af8216e')
     def test_snapshot_create_get_list_update_delete(self):
@@ -139,7 +133,7 @@
         self.assertEqual(new_desc, updated_snapshot[self.descrip_field])
 
         # Delete the snapshot
-        self.cleanup_snapshot(snapshot)
+        self.delete_snapshot(snapshot['id'])
 
     @decorators.idempotent_id('677863d1-3142-456d-b6ac-9924f667a7f4')
     def test_volume_from_snapshot(self):
diff --git a/tempest/cmd/subunit_describe_calls.py b/tempest/cmd/subunit_describe_calls.py
index 0f868a9..8ee3055 100644
--- a/tempest/cmd/subunit_describe_calls.py
+++ b/tempest/cmd/subunit_describe_calls.py
@@ -294,7 +294,8 @@
             outfile.write(json.dumps(url_parser.test_logs))
         return
 
-    for test_name, items in url_parser.test_logs.iteritems():
+    for test_name in url_parser.test_logs:
+        items = url_parser.test_logs[test_name]
         sys.stdout.write('{0}\n'.format(test_name))
         if not items:
             sys.stdout.write('\n')
diff --git a/tempest/scenario/test_volume_boot_pattern.py b/tempest/scenario/test_volume_boot_pattern.py
index 9c33b71..b72dae9 100644
--- a/tempest/scenario/test_volume_boot_pattern.py
+++ b/tempest/scenario/test_volume_boot_pattern.py
@@ -43,16 +43,13 @@
         return self.create_volume(name=vol_name, imageRef=img_uuid)
 
     def _get_bdm(self, source_id, source_type, delete_on_termination=False):
-        # NOTE(gfidente): the syntax for block_device_mapping is
-        # dev_name=id:type:size:delete_on_terminate
-        # where type needs to be "snap" if the server is booted
-        # from a snapshot, size instead can be safely left empty
-
-        bd_map = [{
-            'device_name': 'vda',
-            '{}_id'.format(source_type): source_id,
-            'delete_on_termination': str(int(delete_on_termination))}]
-        return {'block_device_mapping': bd_map}
+        bd_map_v2 = [{
+            'uuid': source_id,
+            'source_type': source_type,
+            'destination_type': 'volume',
+            'boot_index': 0,
+            'delete_on_termination': delete_on_termination}]
+        return {'block_device_mapping_v2': bd_map_v2}
 
     def _boot_instance_from_resource(self, source_id,
                                      source_type,
@@ -236,14 +233,3 @@
 
         # delete instance
         self._delete_server(instance)
-
-
-class TestVolumeBootPatternV2(TestVolumeBootPattern):
-    def _get_bdm(self, source_id, source_type, delete_on_termination=False):
-        bd_map_v2 = [{
-            'uuid': source_id,
-            'source_type': source_type,
-            'destination_type': 'volume',
-            'boot_index': 0,
-            'delete_on_termination': delete_on_termination}]
-        return {'block_device_mapping_v2': bd_map_v2}
diff --git a/tempest/tests/cmd/test_subunit_describe_calls.py b/tempest/tests/cmd/test_subunit_describe_calls.py
index 1c24c37..5f3d770 100644
--- a/tempest/tests/cmd/test_subunit_describe_calls.py
+++ b/tempest/tests/cmd/test_subunit_describe_calls.py
@@ -33,6 +33,16 @@
         p.communicate()
         self.assertEqual(0, p.returncode)
 
+    def test_return_code_no_output(self):
+        subunit_file = os.path.join(
+            os.path.dirname(os.path.abspath(__file__)),
+            'sample_streams/calls.subunit')
+        p = subprocess.Popen([
+            'subunit-describe-calls', '-s', subunit_file],
+            stdin=subprocess.PIPE)
+        p.communicate()
+        self.assertEqual(0, p.returncode)
+
     def test_parse(self):
         subunit_file = os.path.join(
             os.path.dirname(os.path.abspath(__file__)),