diff --git a/.zuul.yaml b/.zuul.yaml
index e4e95f2..8dcb935 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -81,6 +81,26 @@
         # without Swift, c-bak cannot run (in the Gate at least)
         c-bak: false
 
+- nodeset:
+    name: openstack-bionic-node
+    nodes:
+      - name: controller
+        label: ubuntu-bionic
+    groups:
+      - name: tempest
+        nodes:
+          - controller
+
+- job:
+    name: tempest-full-py36
+    parent: tempest-full-py3
+    nodeset: openstack-bionic-node
+    branches:
+      - master
+    description: |
+      Base integration test with Neutron networking and py36.
+    voting: false
+
 - job:
     name: tempest-full-queens
     parent: tempest-full
@@ -198,6 +218,16 @@
               - ^setup.cfg$
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
+        - tempest-full-py36:
+            irrelevant-files:
+              - ^(test-|)requirements.txt$
+              - ^.*\.rst$
+              - ^doc/.*$
+              - ^etc/.*$
+              - ^releasenotes/.*$
+              - ^setup.cfg$
+              - ^tempest/hacking/.*$
+              - ^tempest/tests/.*$
         - tempest-full-queens:
             irrelevant-files:
               - ^(test-|)requirements.txt$
@@ -244,6 +274,16 @@
               - ^setup.cfg$
               - ^tempest/hacking/.*$
               - ^tempest/tests/.*$
+        - nova-live-migration:
+            irrelevant-files:
+              - ^(test-|)requirements.txt$
+              - ^.*\.rst$
+              - ^doc/.*$
+              - ^etc/.*$
+              - ^releasenotes/.*$
+              - ^setup.cfg$
+              - ^tempest/hacking/.*$
+              - ^tempest/tests/.*$
     periodic-stable:
       jobs:
         - tempest-full-queens
diff --git a/README.rst b/README.rst
index f8059ae..044ae09 100644
--- a/README.rst
+++ b/README.rst
@@ -15,7 +15,7 @@
 
 This is a set of integration tests to be run against a live OpenStack
 cluster. Tempest has batteries of tests for OpenStack API validation,
-Scenarios, and other specific tests useful in validating an OpenStack
+scenarios, and other specific tests useful in validating an OpenStack
 deployment.
 
 Design Principles
diff --git a/REVIEWING.rst b/REVIEWING.rst
index 766d0c6..a880181 100644
--- a/REVIEWING.rst
+++ b/REVIEWING.rst
@@ -42,8 +42,8 @@
 
 API Stability
 -------------
-Tests should only be added for a published stable APIs. If a patch contains
-tests for an API which hasn't been marked as stable or for an API that which
+Tests should only be added for published stable APIs. If a patch contains
+tests for an API which hasn't been marked as stable or for an API which
 doesn't conform to the `API stability guidelines
 <https://wiki.openstack.org/wiki/Governance/Approved/APIStability>`_ then it
 should not be approved.
diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index 942f969..c22888d 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -306,10 +306,18 @@
 
   .. _2.6: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id5
 
+  * `2.9`_
+
+  .. _2.9: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id8
+
   * `2.10`_
 
   .. _2.10: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id9
 
+  * `2.19`_
+
+  .. _2.19: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id17
+
   * `2.20`_
 
   .. _2.20: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id18
@@ -322,6 +330,10 @@
 
   .. _2.25: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#maximum-in-mitaka
 
+  * `2.26`_
+
+  .. _2.26: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id23
+
   * `2.32`_
 
   .. _2.32: https://docs.openstack.org/nova/latest/reference/api-microversion-history.html#id29
diff --git a/releasenotes/notes/bp-application-credentials-df69b1f617db1bb9.yaml b/releasenotes/notes/bp-application-credentials-df69b1f617db1bb9.yaml
new file mode 100644
index 0000000..53125ef
--- /dev/null
+++ b/releasenotes/notes/bp-application-credentials-df69b1f617db1bb9.yaml
@@ -0,0 +1,9 @@
+---
+features:
+  - |
+    [`blueprint application-credentials <https://blueprints.launchpad.net/keystone/+spec/application-credentials>`_]
+    Tempest can test keystone's application credentials interface. A new client
+    library is added for application credentials, and a new config option,
+    ``[identity-feature-enabled]/application_credentials``, can control whether
+    the application credentials feature is tested (defaults to False,
+    indicating the feature is not enabled in the cloud under test).
diff --git a/releasenotes/notes/identity-v3-project-tags-client-36683c6a8644e54b.yaml b/releasenotes/notes/identity-v3-project-tags-client-36683c6a8644e54b.yaml
new file mode 100644
index 0000000..dfbcc7d
--- /dev/null
+++ b/releasenotes/notes/identity-v3-project-tags-client-36683c6a8644e54b.yaml
@@ -0,0 +1,12 @@
+---
+features:
+  - |
+    Add ``project_tags_client`` to the identity v3 library. This feature
+    enables the possibility of invoking the following API actions:
+
+    * update_project_tag
+    * list_project_tags
+    * update_all_project_tags
+    * check_project_tag_existence
+    * delete_project_tag
+    * delete_all_project_tags
diff --git a/setup.cfg b/setup.cfg
index c981370..96ee7ea 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -47,12 +47,5 @@
 oslo.config.opts =
     tempest.config = tempest.config:list_opts
 
-[build_sphinx]
-all-files = 1
-# warning can be generated by using GENERATE_TEMPEST_PLUGIN_LIST='False'
-warning-is-error = 0
-build-dir = doc/build
-source-dir = doc/source
-
 [wheel]
 universal = 1
diff --git a/tempest/api/compute/admin/test_live_migration.py b/tempest/api/compute/admin/test_live_migration.py
index 2398cf1..bc38144 100644
--- a/tempest/api/compute/admin/test_live_migration.py
+++ b/tempest/api/compute/admin/test_live_migration.py
@@ -147,6 +147,7 @@
     @testtools.skipIf(not CONF.compute_feature_enabled.
                       block_migrate_cinder_iscsi,
                       'Block Live migration not configured for iSCSI')
+    @utils.services('volume')
     def test_iscsi_volume(self):
         server = self.create_test_server(wait_until="ACTIVE")
         server_id = server['id']
diff --git a/tempest/api/compute/admin/test_servers.py b/tempest/api/compute/admin/test_servers.py
index 3f06c4e..cdfc44a 100644
--- a/tempest/api/compute/admin/test_servers.py
+++ b/tempest/api/compute/admin/test_servers.py
@@ -16,6 +16,7 @@
 from tempest.common import waiters
 from tempest.lib.common.utils import data_utils
 from tempest.lib import decorators
+from tempest.lib import exceptions as lib_exc
 
 
 class ServersAdminTestJSON(base.BaseV2ComputeAdminTest):
@@ -61,9 +62,13 @@
     @decorators.idempotent_id('d56e9540-73ed-45e0-9b88-98fc419087eb')
     def test_list_servers_detailed_filter_by_invalid_status(self):
         params = {'status': 'invalid_status'}
-        body = self.client.list_servers(detail=True, **params)
-        servers = body['servers']
-        self.assertEmpty(servers)
+        if self.is_requested_microversion_compatible('2.37'):
+            body = self.client.list_servers(detail=True, **params)
+            servers = body['servers']
+            self.assertEmpty(servers)
+        else:
+            self.assertRaises(lib_exc.BadRequest, self.client.list_servers,
+                              detail=True, **params)
 
     @decorators.idempotent_id('51717b38-bdc1-458b-b636-1cf82d99f62f')
     def test_list_servers_by_admin(self):
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 760e356..975728c 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -127,6 +127,36 @@
         cls.image_ssh_password = CONF.validation.image_ssh_password
 
     @classmethod
+    def is_requested_microversion_compatible(cls, max_version):
+        """Check the compatibility of selected request microversion
+
+        This method will check if selected request microversion
+        (cls.request_microversion) for test is compatible with respect
+        to 'max_version'. Compatible means if selected request microversion
+        is in the range(<=) of 'max_version'.
+
+        :param max_version: maximum microversion to compare for compatibility.
+            Example: '2.30'
+        :returns: True if selected request microversion is compatible with
+            'max_version'. False in other case.
+        """
+        try:
+            req_version_obj = api_version_request.APIVersionRequest(
+                cls.request_microversion)
+        # NOTE(gmann): This is case where this method is used before calling
+        # resource_setup(), where cls.request_microversion is set. There may
+        # not be any such case but still we can handle this case.
+        except AttributeError:
+            request_microversion = (
+                api_version_utils.select_request_microversion(
+                    cls.min_microversion,
+                    CONF.compute.min_microversion))
+            req_version_obj = api_version_request.APIVersionRequest(
+                request_microversion)
+        max_version_obj = api_version_request.APIVersionRequest(max_version)
+        return req_version_obj <= max_version_obj
+
+    @classmethod
     def server_check_teardown(cls):
         """Checks is the shared server clean enough for subsequent test.
 
diff --git a/tempest/api/compute/servers/test_device_tagging.py b/tempest/api/compute/servers/test_device_tagging.py
index 43046ca..b0d527c 100644
--- a/tempest/api/compute/servers/test_device_tagging.py
+++ b/tempest/api/compute/servers/test_device_tagging.py
@@ -47,8 +47,8 @@
             raise cls.skipException('Neutron is required')
         if not CONF.validation.run_validation:
             raise cls.skipException('Validation must be enabled')
-        if (not CONF.compute_feature_enabled.config_drive
-            and not CONF.compute_feature_enabled.metadata_service):
+        if (not CONF.compute_feature_enabled.config_drive and
+                not CONF.compute_feature_enabled.metadata_service):
             raise cls.skipException('One of metadata or config drive must be '
                                     'enabled')
 
diff --git a/tempest/api/compute/servers/test_list_servers_negative.py b/tempest/api/compute/servers/test_list_servers_negative.py
index 393e68f..18a78f0 100644
--- a/tempest/api/compute/servers/test_list_servers_negative.py
+++ b/tempest/api/compute/servers/test_list_servers_negative.py
@@ -79,10 +79,16 @@
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('fcdf192d-0f74-4d89-911f-1ec002b822c4')
     def test_list_servers_status_non_existing(self):
-        # Return an empty list when invalid status is specified
-        body = self.client.list_servers(status='non_existing_status')
-        servers = body['servers']
-        self.assertEmpty(servers)
+        # When invalid status is specified, up to microversion 2.37,
+        # an empty list is returnd, and starting from microversion 2.38,
+        # a 400 error is returned in that case.
+        if self.is_requested_microversion_compatible('2.37'):
+            body = self.client.list_servers(status='non_existing_status')
+            servers = body['servers']
+            self.assertEmpty(servers)
+        else:
+            self.assertRaises(lib_exc.BadRequest, self.client.list_servers,
+                              status='non_existing_status')
 
     @decorators.attr(type=['negative'])
     @decorators.idempotent_id('d47c17fb-eebd-4287-8e95-f20a7e627b18')
diff --git a/tempest/api/compute/servers/test_server_actions.py b/tempest/api/compute/servers/test_server_actions.py
index 5c3e9f0..bbec30c 100644
--- a/tempest/api/compute/servers/test_server_actions.py
+++ b/tempest/api/compute/servers/test_server_actions.py
@@ -586,7 +586,7 @@
             server_info = self.client.show_server(self.server_id)['server']
             if 'SHELVED' in server_info['status']:
                 self.client.unshelve_server(self.server_id)
-        self.addOnException(_unshelve_server)
+        self.addCleanup(_unshelve_server)
 
         server = self.client.show_server(self.server_id)['server']
         image_name = server['name'] + '-shelved'
diff --git a/tempest/api/compute/servers/test_servers.py b/tempest/api/compute/servers/test_servers.py
index 2904976..543fa1c 100644
--- a/tempest/api/compute/servers/test_servers.py
+++ b/tempest/api/compute/servers/test_servers.py
@@ -184,8 +184,28 @@
     min_microversion = '2.47'
     max_microversion = 'latest'
 
+    # NOTE(gmann): This test tests the server APIs response schema
+    # Along with 2.47 microversion schema this test class tests the
+    # other microversions 2.9, 2.19 and 2.26 server APIs response schema
+    # also. 2.47 APIs schema are on top of 2.9->2.19->2.26 schema so
+    # below tests cover all of the schema.
+
     @decorators.idempotent_id('88b0bdb2-494c-11e7-a919-92ebcb67fe33')
     def test_show_server(self):
         server = self.create_test_server()
         # All fields will be checked by API schema
         self.servers_client.show_server(server['id'])
+
+    @decorators.idempotent_id('8de397c2-57d0-4b90-aa30-e5d668f21a8b')
+    def test_update_rebuild_list_server(self):
+        server = self.create_test_server()
+        # Checking update API response schema
+        self.servers_client.update_server(server['id'])
+        waiters.wait_for_server_status(self.servers_client, server['id'],
+                                       'ACTIVE')
+        # Checking rebuild API response schema
+        self.servers_client.rebuild_server(server['id'], self.image_ref_alt)
+        waiters.wait_for_server_status(self.servers_client,
+                                       server['id'], 'ACTIVE')
+        # Checking list details API response schema
+        self.servers_client.list_servers(detail=True)
diff --git a/tempest/api/compute/servers/test_servers_negative.py b/tempest/api/compute/servers/test_servers_negative.py
index 9b545af..e944c28 100644
--- a/tempest/api/compute/servers/test_servers_negative.py
+++ b/tempest/api/compute/servers/test_servers_negative.py
@@ -481,7 +481,7 @@
             server_info = self.client.show_server(self.server_id)['server']
             if 'SHELVED' in server_info['status']:
                 self.client.unshelve_server(self.server_id)
-        self.addOnException(_unshelve_server)
+        self.addCleanup(_unshelve_server)
 
         server = self.client.show_server(self.server_id)['server']
         image_name = server['name'] + '-shelved'
diff --git a/tempest/api/identity/admin/v3/test_application_credentials.py b/tempest/api/identity/admin/v3/test_application_credentials.py
new file mode 100644
index 0000000..4a74ef8
--- /dev/null
+++ b/tempest/api/identity/admin/v3/test_application_credentials.py
@@ -0,0 +1,48 @@
+# Copyright 2018 SUSE Linux GmbH
+#
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest.api.identity import base
+from tempest import config
+from tempest.lib import decorators
+
+
+CONF = config.CONF
+
+
+class ApplicationCredentialsV3AdminTest(base.BaseApplicationCredentialsV3Test,
+                                        base.BaseIdentityV3AdminTest):
+
+    @decorators.idempotent_id('3b3dd48f-3388-406a-a9e6-4d078a552d0e')
+    def test_create_application_credential_with_roles(self):
+        role = self.setup_test_role()
+        self.os_admin.roles_v3_client.create_user_role_on_project(
+            self.project_id,
+            self.user_id,
+            role['id']
+        )
+
+        app_cred = self.create_application_credential(
+            roles=[{'id': role['id']}])
+        secret = app_cred['secret']
+
+        # Check that the application credential is functional
+        token_id, resp = self.non_admin_token.get_token(
+            app_cred_id=app_cred['id'],
+            app_cred_secret=secret,
+            auth_data=True
+        )
+        self.assertEqual(resp['project']['id'], self.project_id)
+        self.assertEqual(resp['roles'][0]['id'], role['id'])
diff --git a/tempest/api/identity/admin/v3/test_project_tags.py b/tempest/api/identity/admin/v3/test_project_tags.py
new file mode 100644
index 0000000..d05173b
--- /dev/null
+++ b/tempest/api/identity/admin/v3/test_project_tags.py
@@ -0,0 +1,66 @@
+# Copyright 2018 AT&T Corporation.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import testtools
+
+from tempest.api.identity import base
+from tempest import config
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+from tempest.lib import exceptions as lib_exc
+
+CONF = config.CONF
+
+
+class IdentityV3ProjectTagsTest(base.BaseIdentityV3AdminTest):
+
+    @decorators.idempotent_id('7c123aac-999d-416a-a0fb-84b915ab10de')
+    @testtools.skipUnless(CONF.identity_feature_enabled.project_tags,
+                          'Project tags not available.')
+    def test_list_update_delete_project_tags(self):
+        project = self.setup_test_project()
+
+        # Create a tag for testing.
+        tag = data_utils.rand_name('tag')
+        # NOTE(felipemonteiro): The response body for create is empty.
+        self.project_tags_client.update_project_tag(project['id'], tag)
+
+        # Verify that the tag was created.
+        self.project_tags_client.check_project_tag_existence(
+            project['id'], tag)
+
+        # Verify that updating the project tags works.
+        tags_to_update = [data_utils.rand_name('tag') for _ in range(3)]
+        updated_tags = self.project_tags_client.update_all_project_tags(
+            project['id'], tags_to_update)['tags']
+        self.assertEqual(sorted(tags_to_update), sorted(updated_tags))
+
+        # Verify that listing project tags works.
+        retrieved_tags = self.project_tags_client.list_project_tags(
+            project['id'])['tags']
+        self.assertEqual(sorted(tags_to_update), sorted(retrieved_tags))
+
+        # Verify that deleting a project tag works.
+        self.project_tags_client.delete_project_tag(
+            project['id'], tags_to_update[0])
+        self.assertRaises(lib_exc.NotFound,
+                          self.project_tags_client.check_project_tag_existence,
+                          project['id'], tags_to_update[0])
+
+        # Verify that deleting all project tags works.
+        self.project_tags_client.delete_all_project_tags(project['id'])
+        retrieved_tags = self.project_tags_client.list_project_tags(
+            project['id'])['tags']
+        self.assertEmpty(retrieved_tags)
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 9edccbb..68f2c07 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -190,6 +190,8 @@
         cls.non_admin_catalog_client = cls.os_primary.catalog_client
         cls.non_admin_versions_client =\
             cls.os_primary.identity_versions_v3_client
+        cls.non_admin_app_creds_client = \
+            cls.os_primary.application_credentials_client
 
 
 class BaseIdentityV3AdminTest(BaseIdentityV3Test):
@@ -228,6 +230,7 @@
         cls.domain_config_client = cls.os_admin.domain_config_client
         cls.endpoint_filter_client = cls.os_admin.endpoint_filter_client
         cls.endpoint_groups_client = cls.os_admin.endpoint_groups_client
+        cls.project_tags_client = cls.os_admin.project_tags_client
 
         if CONF.identity.admin_domain_scope:
             # NOTE(andreaf) When keystone policy requires it, the identity
@@ -288,3 +291,30 @@
             test_utils.call_and_ignore_notfound_exc,
             self.delete_domain, domain['id'])
         return domain
+
+
+class BaseApplicationCredentialsV3Test(BaseIdentityV3Test):
+
+    @classmethod
+    def skip_checks(cls):
+        super(BaseApplicationCredentialsV3Test, cls).skip_checks()
+        if not CONF.identity_feature_enabled.application_credentials:
+            raise cls.skipException("Application credentials are not available"
+                                    " in this environment")
+
+    @classmethod
+    def resource_setup(cls):
+        super(BaseApplicationCredentialsV3Test, cls).resource_setup()
+        cls.user_id = cls.os_primary.credentials.user_id
+        cls.project_id = cls.os_primary.credentials.project_id
+
+    def create_application_credential(self, name=None, **kwargs):
+        name = name or data_utils.rand_name('application_credential')
+        application_credential = (
+            self.non_admin_app_creds_client.create_application_credential(
+                self.user_id, name=name, **kwargs))['application_credential']
+        self.addCleanup(
+            self.non_admin_app_creds_client.delete_application_credential,
+            self.user_id,
+            application_credential['id'])
+        return application_credential
diff --git a/tempest/api/identity/v3/test_application_credentials.py b/tempest/api/identity/v3/test_application_credentials.py
new file mode 100644
index 0000000..caf0b1e
--- /dev/null
+++ b/tempest/api/identity/v3/test_application_credentials.py
@@ -0,0 +1,85 @@
+# Copyright 2018 SUSE Linux GmbH
+#
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import datetime
+
+from oslo_utils import timeutils
+
+from tempest.api.identity import base
+from tempest import config
+from tempest.lib import decorators
+
+
+CONF = config.CONF
+
+
+class ApplicationCredentialsV3Test(base.BaseApplicationCredentialsV3Test):
+
+    def _list_app_creds(self, name=None):
+        kwargs = dict(user_id=self.user_id)
+        if name:
+            kwargs.update(name=name)
+        return self.non_admin_app_creds_client.list_application_credentials(
+            **kwargs)['application_credentials']
+
+    @decorators.idempotent_id('8080c75c-eddc-4786-941a-c2da7039ae61')
+    def test_create_application_credential(self):
+        app_cred = self.create_application_credential()
+
+        # Check that the secret appears in the create response
+        secret = app_cred['secret']
+
+        # Check that the secret is not retrievable after initial create
+        app_cred = self.non_admin_app_creds_client.show_application_credential(
+            user_id=self.user_id,
+            application_credential_id=app_cred['id']
+        )['application_credential']
+        self.assertNotIn('secret', app_cred)
+
+        # Check that the application credential is functional
+        token_id, resp = self.non_admin_token.get_token(
+            app_cred_id=app_cred['id'],
+            app_cred_secret=secret,
+            auth_data=True
+        )
+        self.assertEqual(resp['project']['id'], self.project_id)
+
+    @decorators.idempotent_id('852daf0c-42b5-4239-8466-d193d0543ed3')
+    def test_create_application_credential_expires(self):
+        expires_at = timeutils.utcnow() + datetime.timedelta(hours=1)
+
+        app_cred = self.create_application_credential(expires_at=expires_at)
+
+        expires_str = expires_at.isoformat()
+        self.assertEqual(expires_str, app_cred['expires_at'])
+
+    @decorators.idempotent_id('ff0cd457-6224-46e7-b79e-0ada4964a8a6')
+    def test_list_application_credentials(self):
+        self.create_application_credential()
+        self.create_application_credential()
+
+        app_creds = self._list_app_creds()
+        self.assertEqual(2, len(app_creds))
+
+    @decorators.idempotent_id('9bb5e5cc-5250-493a-8869-8b665f6aa5f6')
+    def test_query_application_credentials(self):
+        self.create_application_credential()
+        app_cred_two = self.create_application_credential()
+        app_cred_two_name = app_cred_two['name']
+
+        app_creds = self._list_app_creds(name=app_cred_two_name)
+        self.assertEqual(1, len(app_creds))
+        self.assertEqual(app_cred_two_name, app_creds[0]['name'])
diff --git a/tempest/api/image/v1/test_images.py b/tempest/api/image/v1/test_images.py
index 76723f4..2432c8b 100644
--- a/tempest/api/image/v1/test_images.py
+++ b/tempest/api/image/v1/test_images.py
@@ -132,8 +132,8 @@
     @classmethod
     def skip_checks(cls):
         super(ListImagesTest, cls).skip_checks()
-        if (len(CONF.image.container_formats) < 2
-           or len(CONF.image.disk_formats) < 2):
+        if (len(CONF.image.container_formats) < 2 or
+                len(CONF.image.disk_formats) < 2):
             skip_msg = ("%s skipped as multiple container formats "
                         "or disk formats are not available." % cls.__name__)
             raise cls.skipException(skip_msg)
@@ -227,8 +227,8 @@
             self.assertEqual(image['disk_format'], self.disk_format_alt)
         result_set = set(map(lambda x: x['id'], images_list))
         self.assertTrue(self.same_disk_format_set <= result_set)
-        self.assertFalse(self.created_set - self.same_disk_format_set
-                         <= result_set)
+        self.assertFalse(self.created_set - self.same_disk_format_set <=
+                         result_set)
 
     @decorators.idempotent_id('2143655d-96d9-4bec-9188-8674206b4b3b')
     def test_index_container_format(self):
@@ -238,8 +238,8 @@
             self.assertEqual(image['container_format'], self.container_format)
         result_set = set(map(lambda x: x['id'], images_list))
         self.assertTrue(self.same_container_format_set <= result_set)
-        self.assertFalse(self.created_set - self.same_container_format_set
-                         <= result_set)
+        self.assertFalse(self.created_set - self.same_container_format_set <=
+                         result_set)
 
     @decorators.idempotent_id('feb32ac6-22bb-4a16-afd8-9454bb714b14')
     def test_index_max_size(self):
diff --git a/tempest/api/image/v2/test_images.py b/tempest/api/image/v2/test_images.py
index ce5bd3e..aa57daf 100644
--- a/tempest/api/image/v2/test_images.py
+++ b/tempest/api/image/v2/test_images.py
@@ -71,8 +71,12 @@
         self.assertEqual(1024, body.get('size'))
 
         # Now try get image file
+        # NOTE: This Glance API returns different status codes for image
+        # condition. In this non-empty data case, Glance should return 200,
+        # so here should check the status code.
         body = self.client.show_image_file(image['id'])
         self.assertEqual(file_content, body.data)
+        self.assertEqual(200, body.response.status)
 
     @decorators.attr(type='smoke')
     @decorators.idempotent_id('f848bb94-1c6e-45a4-8726-39e3a5b23535')
@@ -111,6 +115,13 @@
                                   visibility='private')
         self.assertEqual('queued', image['status'])
 
+        # NOTE: This Glance API returns different status codes for image
+        # condition. In this empty data case, Glance should return 204,
+        # so here should check the status code.
+        image_file = self.client.show_image_file(image['id'])
+        self.assertEqual(0, len(image_file.data))
+        self.assertEqual(204, image_file.response.status)
+
         # Now try uploading an image file
         image_file = six.BytesIO(data_utils.random_bytes())
         self.client.store_image_file(image['id'], image_file)
diff --git a/tempest/api/volume/admin/test_volume_hosts.py b/tempest/api/volume/admin/test_volume_hosts.py
index ce0cbd2..7e53ce8 100644
--- a/tempest/api/volume/admin/test_volume_hosts.py
+++ b/tempest/api/volume/admin/test_volume_hosts.py
@@ -46,8 +46,8 @@
         # show host API should fail (return code: 404). The cinder-volume host
         # is presented in format: <host-name>@driver-name.
         c_vol_hosts = [host['host_name'] for host in hosts
-                       if (host['service'] == 'cinder-volume'
-                           and host['service-state'] == 'enabled')]
+                       if (host['service'] == 'cinder-volume' and
+                           host['service-state'] == 'enabled')]
         self.assertNotEmpty(c_vol_hosts,
                             "No available cinder-volume host is found, "
                             "all hosts that found are: %s" % hosts)
diff --git a/tempest/api/volume/admin/test_volume_retype_with_migration.py b/tempest/api/volume/admin/test_volume_retype_with_migration.py
index f0b3a4f..025c1be 100644
--- a/tempest/api/volume/admin/test_volume_retype_with_migration.py
+++ b/tempest/api/volume/admin/test_volume_retype_with_migration.py
@@ -46,13 +46,10 @@
         extra_specs_src = {"volume_backend_name": backend_src}
         extra_specs_dst = {"volume_backend_name": backend_dst}
 
-        src_vol_type = cls.create_volume_type(extra_specs=extra_specs_src)
+        cls.src_vol_type = cls.create_volume_type(extra_specs=extra_specs_src)
         cls.dst_vol_type = cls.create_volume_type(extra_specs=extra_specs_dst)
 
-        cls.src_vol = cls.create_volume(volume_type=src_vol_type['name'])
-
-    @classmethod
-    def resource_cleanup(cls):
+    def _wait_for_internal_volume_cleanup(self, vol):
         # When retyping a volume, Cinder creates an internal volume in the
         # target backend. The volume in the source backend is deleted after
         # the migration, so we need to wait for Cinder delete this volume
@@ -60,40 +57,37 @@
 
         # This list should return 2 volumes until the copy and cleanup
         # process is finished.
-        fetched_list = cls.admin_volume_client.list_volumes(
+        fetched_list = self.admin_volume_client.list_volumes(
             params={'all_tenants': True,
-                    'display_name': cls.src_vol['name']})['volumes']
+                    'display_name': vol['name']})['volumes']
 
         for fetched_vol in fetched_list:
-            if fetched_vol['id'] != cls.src_vol['id']:
+            if fetched_vol['id'] != vol['id']:
                 # This is the Cinder internal volume
                 LOG.debug('Waiting for internal volume %s deletion',
                           fetched_vol['id'])
-                cls.admin_volume_client.wait_for_resource_deletion(
+                self.admin_volume_client.wait_for_resource_deletion(
                     fetched_vol['id'])
                 break
 
-        super(VolumeRetypeWithMigrationTest, cls).resource_cleanup()
-
-    @decorators.idempotent_id('a1a41f3f-9dad-493e-9f09-3ff197d477cd')
-    def test_available_volume_retype_with_migration(self):
-
+    def _retype_volume(self, volume):
         keys_with_no_change = ('id', 'size', 'description', 'name', 'user_id',
                                'os-vol-tenant-attr:tenant_id')
         keys_with_change = ('volume_type', 'os-vol-host-attr:host')
 
         volume_source = self.admin_volume_client.show_volume(
-            self.src_vol['id'])['volume']
+            volume['id'])['volume']
 
         self.volumes_client.retype_volume(
-            self.src_vol['id'],
+            volume['id'],
             new_type=self.dst_vol_type['name'],
             migration_policy='on-demand')
-
-        waiters.wait_for_volume_retype(self.volumes_client, self.src_vol['id'],
+        self.addCleanup(self._wait_for_internal_volume_cleanup, volume)
+        waiters.wait_for_volume_retype(self.volumes_client, volume['id'],
                                        self.dst_vol_type['name'])
+
         volume_dest = self.admin_volume_client.show_volume(
-            self.src_vol['id'])['volume']
+            volume['id'])['volume']
 
         # Check the volume information after the migration.
         self.assertEqual('success',
@@ -105,3 +99,27 @@
 
         for key in keys_with_change:
             self.assertNotEqual(volume_source[key], volume_dest[key])
+
+    @decorators.idempotent_id('a1a41f3f-9dad-493e-9f09-3ff197d477cd')
+    def test_available_volume_retype_with_migration(self):
+        src_vol = self.create_volume(volume_type=self.src_vol_type['name'])
+        self._retype_volume(src_vol)
+
+    @decorators.idempotent_id('d0d9554f-e7a5-4104-8973-f35b27ccb60d')
+    def test_volume_from_snapshot_retype_with_migration(self):
+        # Create a volume in the first backend
+        src_vol = self.create_volume(volume_type=self.src_vol_type['name'])
+
+        # Create a volume snapshot
+        snapshot = self.create_snapshot(src_vol['id'])
+
+        # Create a volume from the snapshot
+        src_vol = self.create_volume(volume_type=self.src_vol_type['name'],
+                                     snapshot_id=snapshot['id'])
+
+        # Delete the snapshot
+        self.snapshots_client.delete_snapshot(snapshot['id'])
+        self.snapshots_client.wait_for_resource_deletion(snapshot['id'])
+
+        # Migrate the volume from snapshot to the second backend
+        self._retype_volume(src_vol)
diff --git a/tempest/api/volume/test_volumes_extend.py b/tempest/api/volume/test_volumes_extend.py
index 362f4cc..5d339c4 100644
--- a/tempest/api/volume/test_volumes_extend.py
+++ b/tempest/api/volume/test_volumes_extend.py
@@ -44,7 +44,6 @@
     @decorators.idempotent_id('86be1cba-2640-11e5-9c82-635fb964c912')
     @testtools.skipUnless(CONF.volume_feature_enabled.snapshot,
                           "Cinder volume snapshots are disabled")
-    @decorators.skip_because(bug='1687044')
     def test_volume_extend_when_volume_has_snapshot(self):
         volume = self.create_volume()
         self.create_snapshot(volume['id'])
diff --git a/tempest/api/volume/test_volumes_snapshots_list.py b/tempest/api/volume/test_volumes_snapshots_list.py
index 507df1f..f12bfd8 100644
--- a/tempest/api/volume/test_volumes_snapshots_list.py
+++ b/tempest/api/volume/test_volumes_snapshots_list.py
@@ -28,13 +28,11 @@
     @classmethod
     def resource_setup(cls):
         super(VolumesSnapshotListTestJSON, cls).resource_setup()
-        cls.snapshot_id_list = []
         volume_origin = cls.create_volume()
 
         # Create snapshots with params
         for _ in range(3):
             snapshot = cls.create_snapshot(volume_origin['id'])
-            cls.snapshot_id_list.append(snapshot['id'])
         cls.snapshot = snapshot
 
     def _list_by_param_values_and_assert(self, with_detail=False, **params):
@@ -151,10 +149,14 @@
     @decorators.idempotent_id('05489dde-44bc-4961-a1f5-3ce7ee7824f7')
     def test_snapshot_list_param_marker(self):
         # The list of snapshots should end before the provided marker
-        params = {'marker': self.snapshot_id_list[1]}
+        snap_list = self.snapshots_client.list_snapshots()['snapshots']
+        # list_snapshots will take the reverse order as they are created.
+        snapshot_id_list = [snap['id'] for snap in snap_list][::-1]
+
+        params = {'marker': snapshot_id_list[1]}
         snap_list = self.snapshots_client.list_snapshots(**params)['snapshots']
         fetched_list_id = [snap['id'] for snap in snap_list]
         # Verify the list of snapshots ends before the provided
         # marker(second snapshot), therefore only the first snapshot
         # should displayed.
-        self.assertEqual(self.snapshot_id_list[:1], fetched_list_id)
+        self.assertEqual(snapshot_id_list[:1], fetched_list_id)
diff --git a/tempest/clients.py b/tempest/clients.py
index b06eafb..0d16748 100644
--- a/tempest/clients.py
+++ b/tempest/clients.py
@@ -197,6 +197,10 @@
         self.endpoint_groups_client = self.identity_v3.EndPointGroupsClient(
             **params_v3)
         self.catalog_client = self.identity_v3.CatalogClient(**params_v3)
+        self.project_tags_client = self.identity_v3.ProjectTagsClient(
+            **params_v3)
+        self.application_credentials_client = \
+            self.identity_v3.ApplicationCredentialsClient(**params_v3)
 
         # Token clients do not use the catalog. They only need default_params.
         # They read auth_url, so they should only be set if the corresponding
diff --git a/tempest/cmd/cleanup_service.py b/tempest/cmd/cleanup_service.py
index 025959a..27e1bc1 100644
--- a/tempest/cmd/cleanup_service.py
+++ b/tempest/cmd/cleanup_service.py
@@ -104,11 +104,11 @@
             self.tenant_filter['tenant_id'] = self.tenant_id
 
     def _filter_by_tenant_id(self, item_list):
-        if (item_list is None
-                or not item_list
-                or not hasattr(self, 'tenant_id')
-                or self.tenant_id is None
-                or 'tenant_id' not in item_list[0]):
+        if (item_list is None or
+                not item_list or
+                not hasattr(self, 'tenant_id') or
+                self.tenant_id is None or
+                'tenant_id' not in item_list[0]):
             return item_list
 
         return [item for item in item_list
@@ -816,8 +816,8 @@
             if not self.is_save_state:
                 roles = [role for role in roles if
                          (role['id'] not in
-                          self.saved_state_json['roles'].keys()
-                          and role['name'] != CONF.identity.admin_role)]
+                          self.saved_state_json['roles'].keys() and
+                          role['name'] != CONF.identity.admin_role)]
                 LOG.debug("List count, %s Roles after reconcile", len(roles))
             return roles
         except Exception:
@@ -852,13 +852,16 @@
     def list(self):
         projects = self.client.list_projects()['projects']
         if not self.is_save_state:
-            projects = [project for project in projects if (project['id']
-                        not in self.saved_state_json['projects'].keys()
-                        and project['name'] != CONF.auth.admin_project_name)]
+            project_ids = self.saved_state_json['projects']
+            projects = [project
+                        for project in projects
+                        if (project['id'] not in project_ids and
+                            project['name'] != CONF.auth.admin_project_name)]
 
         if self.is_preserve:
-            projects = [project for project in projects if project['name']
-                        not in CONF_PROJECTS]
+            projects = [project
+                        for project in projects
+                        if project['name'] not in CONF_PROJECTS]
 
         LOG.debug("List count, %s Projects after reconcile", len(projects))
         return projects
diff --git a/tempest/cmd/init.py b/tempest/cmd/init.py
index 9a85d89..84c8631 100644
--- a/tempest/cmd/init.py
+++ b/tempest/cmd/init.py
@@ -136,7 +136,7 @@
         if not os.path.isdir(local_dir):
             LOG.debug('Creating local working dir: %s', local_dir)
             os.mkdir(local_dir)
-        elif not os.listdir(local_dir) == []:
+        elif os.listdir(local_dir):
             raise OSError("Directory you are trying to initialize already "
                           "exists and is not empty: %s" % local_dir)
 
diff --git a/tempest/config.py b/tempest/config.py
index ef8d5bd..008c9f6 100644
--- a/tempest/config.py
+++ b/tempest/config.py
@@ -240,7 +240,13 @@
                      'settings enabled?'),
     cfg.BoolOpt('project_tags',
                 default=False,
-                help='Is the project tags identity v3 API available?')
+                help='Is the project tags identity v3 API available?'),
+    # Application credentials is a default feature in Queens. This config
+    # option can removed once Pike is EOL.
+    cfg.BoolOpt('application_credentials',
+                default=False,
+                help='Does the environment have application credentials '
+                     'enabled?')
 ]
 
 compute_group = cfg.OptGroup(name='compute',
diff --git a/tempest/hacking/checks.py b/tempest/hacking/checks.py
index aae685c..b6e7f8c 100644
--- a/tempest/hacking/checks.py
+++ b/tempest/hacking/checks.py
@@ -228,12 +228,12 @@
     if 'tempest/lib/' not in filename:
         return
 
-    if not ('from tempest' in logical_line
-            or 'import tempest' in logical_line):
+    if not ('from tempest' in logical_line or
+            'import tempest' in logical_line):
         return
 
-    if ('from tempest.lib' in logical_line
-        or 'import tempest.lib' in logical_line):
+    if ('from tempest.lib' in logical_line or
+            'import tempest.lib' in logical_line):
         return
 
     msg = ("T112: tempest.lib should not import local tempest code to avoid "
@@ -266,9 +266,9 @@
     if 'tempest/lib/' not in filename:
         return
 
-    if ('tempest.config' in logical_line
-        or 'from tempest import config' in logical_line
-        or 'oslo_config' in logical_line):
+    if ('tempest.config' in logical_line or
+            'from tempest import config' in logical_line or
+            'oslo_config' in logical_line):
         msg = ('T114: tempest.lib can not have any dependency on tempest '
                'config.')
         yield(0, msg)
diff --git a/tempest/lib/api_schema/response/compute/v2_19/servers.py b/tempest/lib/api_schema/response/compute/v2_19/servers.py
index 05cc32c..fd9e933 100644
--- a/tempest/lib/api_schema/response/compute/v2_19/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_19/servers.py
@@ -14,9 +14,9 @@
 
 import copy
 
-from tempest.lib.api_schema.response.compute.v2_1 import servers as serversv21
 from tempest.lib.api_schema.response.compute.v2_16 import servers \
     as serversv216
+from tempest.lib.api_schema.response.compute.v2_9 import servers as serversv29
 
 list_servers = copy.deepcopy(serversv216.list_servers)
 
@@ -32,20 +32,20 @@
 list_servers_detail['response_body']['properties']['servers']['items'][
     'required'].append('description')
 
-update_server = copy.deepcopy(serversv21.update_server)
+update_server = copy.deepcopy(serversv29.update_server)
 update_server['response_body']['properties']['server'][
     'properties'].update({'description': {'type': ['string', 'null']}})
 update_server['response_body']['properties']['server'][
     'required'].append('description')
 
-rebuild_server = copy.deepcopy(serversv21.rebuild_server)
+rebuild_server = copy.deepcopy(serversv29.rebuild_server)
 rebuild_server['response_body']['properties']['server'][
     'properties'].update({'description': {'type': ['string', 'null']}})
 rebuild_server['response_body']['properties']['server'][
     'required'].append('description')
 
 rebuild_server_with_admin_pass = copy.deepcopy(
-    serversv21.rebuild_server_with_admin_pass)
+    serversv29.rebuild_server_with_admin_pass)
 rebuild_server_with_admin_pass['response_body']['properties']['server'][
     'properties'].update({'description': {'type': ['string', 'null']}})
 rebuild_server_with_admin_pass['response_body']['properties']['server'][
diff --git a/tempest/lib/api_schema/response/compute/v2_26/servers.py b/tempest/lib/api_schema/response/compute/v2_26/servers.py
index b03bdf6..5c35eab 100644
--- a/tempest/lib/api_schema/response/compute/v2_26/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_26/servers.py
@@ -43,6 +43,25 @@
 list_servers_detail['response_body']['properties']['servers']['items'][
     'required'].append('tags')
 
+update_server = copy.deepcopy(servers219.update_server)
+update_server['response_body']['properties']['server'][
+    'properties'].update({'tags': tag_items})
+update_server['response_body']['properties']['server'][
+    'required'].append('tags')
+
+rebuild_server = copy.deepcopy(servers219.rebuild_server)
+rebuild_server['response_body']['properties']['server'][
+    'properties'].update({'tags': tag_items})
+rebuild_server['response_body']['properties']['server'][
+    'required'].append('tags')
+
+rebuild_server_with_admin_pass = copy.deepcopy(
+    servers219.rebuild_server_with_admin_pass)
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'properties'].update({'tags': tag_items})
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'required'].append('tags')
+
 # list response schema wasn't changed for v2.26 so use v2.1
 
 list_servers = copy.deepcopy(servers21.list_servers)
diff --git a/tempest/lib/api_schema/response/compute/v2_47/servers.py b/tempest/lib/api_schema/response/compute/v2_47/servers.py
index 37a084f..935be70 100644
--- a/tempest/lib/api_schema/response/compute/v2_47/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_47/servers.py
@@ -37,3 +37,19 @@
 get_server = copy.deepcopy(servers226.get_server)
 get_server['response_body']['properties']['server'][
     'properties'].update({'flavor': flavor})
+list_servers_detail = copy.deepcopy(servers226.list_servers_detail)
+list_servers_detail['response_body']['properties']['servers']['items'][
+    'properties'].update({'flavor': flavor})
+
+update_server = copy.deepcopy(servers226.update_server)
+update_server['response_body']['properties']['server'][
+    'properties'].update({'flavor': flavor})
+
+rebuild_server = copy.deepcopy(servers226.rebuild_server)
+rebuild_server['response_body']['properties']['server'][
+    'properties'].update({'flavor': flavor})
+
+rebuild_server_with_admin_pass = copy.deepcopy(
+    servers226.rebuild_server_with_admin_pass)
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'properties'].update({'flavor': flavor})
diff --git a/tempest/lib/api_schema/response/compute/v2_9/servers.py b/tempest/lib/api_schema/response/compute/v2_9/servers.py
index e260e48..7df02d5 100644
--- a/tempest/lib/api_schema/response/compute/v2_9/servers.py
+++ b/tempest/lib/api_schema/response/compute/v2_9/servers.py
@@ -14,6 +14,7 @@
 
 import copy
 
+from tempest.lib.api_schema.response.compute.v2_1 import servers as servers_21
 from tempest.lib.api_schema.response.compute.v2_6 import servers
 
 list_servers = copy.deepcopy(servers.list_servers)
@@ -29,3 +30,22 @@
     'properties'].update({'locked': {'type': 'boolean'}})
 list_servers_detail['response_body']['properties']['servers']['items'][
     'required'].append('locked')
+
+update_server = copy.deepcopy(servers_21.update_server)
+update_server['response_body']['properties']['server'][
+    'properties'].update({'locked': {'type': 'boolean'}})
+update_server['response_body']['properties']['server'][
+    'required'].append('locked')
+
+rebuild_server = copy.deepcopy(servers_21.rebuild_server)
+rebuild_server['response_body']['properties']['server'][
+    'properties'].update({'locked': {'type': 'boolean'}})
+rebuild_server['response_body']['properties']['server'][
+    'required'].append('locked')
+
+rebuild_server_with_admin_pass = copy.deepcopy(
+    servers_21.rebuild_server_with_admin_pass)
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'properties'].update({'locked': {'type': 'boolean'}})
+rebuild_server_with_admin_pass['response_body']['properties']['server'][
+    'required'].append('locked')
diff --git a/tempest/lib/base.py b/tempest/lib/base.py
index 33a32ee..3be55c0 100644
--- a/tempest/lib/base.py
+++ b/tempest/lib/base.py
@@ -43,8 +43,7 @@
         super(BaseTestCase, self).setUp()
         if not self.setUpClassCalled:
             raise RuntimeError("setUpClass does not calls the super's "
-                               "setUpClass in the "
-                               + self.__class__.__name__)
+                               "setUpClass in {!r}".format(type(self)))
         test_timeout = os.environ.get('OS_TEST_TIMEOUT', 0)
         try:
             test_timeout = int(test_timeout)
@@ -62,7 +61,7 @@
             stderr = self.useFixture(fixtures.StringStream('stderr')).stream
             self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
         if (os.environ.get('OS_LOG_CAPTURE') != 'False' and
-            os.environ.get('OS_LOG_CAPTURE') != '0'):
+                os.environ.get('OS_LOG_CAPTURE') != '0'):
             self.useFixture(fixtures.LoggerFixture(nuke_handlers=False,
                                                    format=self.log_format,
                                                    level=None))
diff --git a/tempest/lib/cli/output_parser.py b/tempest/lib/cli/output_parser.py
index 2edd5c1..a7d5e49 100644
--- a/tempest/lib/cli/output_parser.py
+++ b/tempest/lib/cli/output_parser.py
@@ -37,8 +37,8 @@
     items = []
     tables_ = tables(output_lines)
     for table_ in tables_:
-        if ('Property' not in table_['headers']
-            or 'Value' not in table_['headers']):
+        if ('Property' not in table_['headers'] or
+                'Value' not in table_['headers']):
             raise exceptions.InvalidStructure()
         item = {}
         for value in table_['values']:
diff --git a/tempest/lib/cmd/check_uuid.py b/tempest/lib/cmd/check_uuid.py
index 101d692..d1f0888 100755
--- a/tempest/lib/cmd/check_uuid.py
+++ b/tempest/lib/cmd/check_uuid.py
@@ -103,7 +103,7 @@
     def _modules_search(self):
         """Recursive search for python modules in base package"""
         modules = []
-        for root, dirs, files in os.walk(self.base_path):
+        for root, _, files in os.walk(self.base_path):
             if not os.path.exists(os.path.join(root, '__init__.py')):
                 continue
             root_package = self._path_to_package(root)
@@ -121,10 +121,10 @@
         idempotent_id = None
         for decorator in test_node.decorator_list:
             if (hasattr(decorator, 'func') and
-                hasattr(decorator.func, 'attr') and
-                decorator.func.attr == DECORATOR_NAME and
-                hasattr(decorator.func, 'value') and
-                decorator.func.value.id == DECORATOR_MODULE):
+                    hasattr(decorator.func, 'attr') and
+                    decorator.func.attr == DECORATOR_NAME and
+                    hasattr(decorator.func, 'value') and
+                    decorator.func.value.id == DECORATOR_MODULE):
                 for arg in decorator.args:
                     idempotent_id = ast.literal_eval(arg)
         return idempotent_id
@@ -165,8 +165,8 @@
 
     @staticmethod
     def _is_test_method(node):
-        return (node.__class__ is ast.FunctionDef
-                and node.name.startswith('test_'))
+        return (node.__class__ is ast.FunctionDef and
+                node.name.startswith('test_'))
 
     @staticmethod
     def _next_node(body, node):
diff --git a/tempest/lib/common/dynamic_creds.py b/tempest/lib/common/dynamic_creds.py
index 4f1a883..f27e926 100644
--- a/tempest/lib/common/dynamic_creds.py
+++ b/tempest/lib/common/dynamic_creds.py
@@ -338,15 +338,15 @@
                 credentials = self._create_creds(roles=credential_type)
             self._creds[str(credential_type)] = credentials
             # Maintained until tests are ported
-            LOG.info("Acquired dynamic creds:\n credentials: %s", credentials)
-            if (self.neutron_available and
-                self.create_networks):
+            LOG.info("Acquired dynamic creds:\n"
+                     " credentials: %s", credentials)
+            if (self.neutron_available and self.create_networks):
                 network, subnet, router = self._create_network_resources(
                     credentials.tenant_id)
                 credentials.set_resources(network=network, subnet=subnet,
                                           router=router)
-                LOG.info("Created isolated network resources for : \n"
-                         + " credentials: %s", credentials)
+                LOG.info("Created isolated network resources for:\n"
+                         " credentials: %s", credentials)
         return credentials
 
     def get_primary_creds(self):
diff --git a/tempest/lib/services/compute/servers_client.py b/tempest/lib/services/compute/servers_client.py
index 09bccab..c85af1f 100644
--- a/tempest/lib/services/compute/servers_client.py
+++ b/tempest/lib/services/compute/servers_client.py
@@ -156,11 +156,11 @@
 
         url = 'servers'
         schema = self.get_schema(self.schema_versions_info)
-        _schema = schema.list_servers
-
         if detail:
             url += '/detail'
             _schema = schema.list_servers_detail
+        else:
+            _schema = schema.list_servers
         if params:
             url += '?%s' % urllib.urlencode(params)
 
diff --git a/tempest/lib/services/identity/v3/__init__.py b/tempest/lib/services/identity/v3/__init__.py
index a539d08..da1c51c 100644
--- a/tempest/lib/services/identity/v3/__init__.py
+++ b/tempest/lib/services/identity/v3/__init__.py
@@ -12,6 +12,8 @@
 # License for the specific language governing permissions and limitations under
 # the License.
 
+from tempest.lib.services.identity.v3.application_credentials_client import \
+    ApplicationCredentialsClient
 from tempest.lib.services.identity.v3.catalog_client import \
     CatalogClient
 from tempest.lib.services.identity.v3.credentials_client import \
@@ -33,6 +35,8 @@
 from tempest.lib.services.identity.v3.oauth_token_client import \
     OAUTHTokenClient
 from tempest.lib.services.identity.v3.policies_client import PoliciesClient
+from tempest.lib.services.identity.v3.project_tags_client import \
+    ProjectTagsClient
 from tempest.lib.services.identity.v3.projects_client import ProjectsClient
 from tempest.lib.services.identity.v3.regions_client import RegionsClient
 from tempest.lib.services.identity.v3.role_assignments_client import \
@@ -44,11 +48,11 @@
 from tempest.lib.services.identity.v3.users_client import UsersClient
 from tempest.lib.services.identity.v3.versions_client import VersionsClient
 
-__all__ = ['CatalogClient', 'CredentialsClient', 'DomainsClient',
-           'DomainConfigurationClient', 'EndPointGroupsClient',
-           'EndPointsClient', 'EndPointsFilterClient', 'GroupsClient',
-           'IdentityClient', 'InheritedRolesClient', 'OAUTHConsumerClient',
-           'OAUTHTokenClient', 'PoliciesClient', 'ProjectsClient',
-           'RegionsClient', 'RoleAssignmentsClient', 'RolesClient',
-           'ServicesClient', 'V3TokenClient', 'TrustsClient', 'UsersClient',
-           'VersionsClient']
+__all__ = ['ApplicationCredentialsClient', 'CatalogClient',
+           'CredentialsClient', 'DomainsClient', 'DomainConfigurationClient',
+           'EndPointGroupsClient', 'EndPointsClient', 'EndPointsFilterClient',
+           'GroupsClient', 'IdentityClient', 'InheritedRolesClient',
+           'OAUTHConsumerClient', 'OAUTHTokenClient', 'PoliciesClient',
+           'ProjectsClient', 'ProjectTagsClient', 'RegionsClient',
+           'RoleAssignmentsClient', 'RolesClient', 'ServicesClient',
+           'V3TokenClient', 'TrustsClient', 'UsersClient', 'VersionsClient']
diff --git a/tempest/lib/services/identity/v3/application_credentials_client.py b/tempest/lib/services/identity/v3/application_credentials_client.py
new file mode 100644
index 0000000..557aa9e
--- /dev/null
+++ b/tempest/lib/services/identity/v3/application_credentials_client.py
@@ -0,0 +1,83 @@
+# Copyright 2018 SUSE Linux GmbH
+#
+# 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.
+
+"""
+https://developer.openstack.org/api-ref/identity/v3/index.html#application-credentials
+"""
+
+from oslo_serialization import jsonutils as json
+from six.moves.urllib import parse as urllib
+
+from tempest.lib.common import rest_client
+
+
+class ApplicationCredentialsClient(rest_client.RestClient):
+    api_version = "v3"
+
+    def create_application_credential(self, user_id, **kwargs):
+        """Creates an application credential.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/identity/v3/index.html#create-application-credential
+        """
+        post_body = json.dumps({'application_credential': kwargs})
+        resp, body = self.post('users/%s/application_credentials' % user_id,
+                               post_body)
+        self.expected_success(201, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def show_application_credential(self, user_id, application_credential_id):
+        """Gets details of an application credential.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/identity/v3/index.html#show-application-credential-details
+        """
+        resp, body = self.get('users/%s/application_credentials/%s' %
+                              (user_id, application_credential_id))
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_application_credentials(self, user_id, **params):
+        """Lists out all of a user's application credentials.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/identity/v3/index.html#list-application-credentials
+        """
+        url = 'users/%s/application_credentials' % user_id
+        if params:
+            url += '?%s' % urllib.urlencode(params)
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_application_credential(self, user_id,
+                                      application_credential_id):
+        """Deletes an application credential.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/identity/v3/index.html#delete-application-credential
+        """
+        resp, body = self.delete('users/%s/application_credentials/%s' %
+                                 (user_id, application_credential_id))
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/identity/v3/project_tags_client.py b/tempest/lib/services/identity/v3/project_tags_client.py
new file mode 100644
index 0000000..dd1a2a5
--- /dev/null
+++ b/tempest/lib/services/identity/v3/project_tags_client.py
@@ -0,0 +1,80 @@
+# Copyright 2018 AT&T Corporation.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from oslo_serialization import jsonutils as json
+
+from tempest.lib.common import rest_client
+
+
+class ProjectTagsClient(rest_client.RestClient):
+    api_version = "v3"
+
+    def update_project_tag(self, project_id, tag):
+        """Updates the specified tag and adds it to the project's list of tags.
+
+        """
+        url = 'projects/%s/tags/%s' % (project_id, tag)
+        resp, body = self.put(url, '{}')
+        # NOTE(felipemonteiro): This API endpoint returns 201 AND an empty
+        # response body, which is consistent with the spec:
+        # https://specs.openstack.org/openstack/api-wg/guidelines/tags.html#addressing-individual-tags
+        self.expected_success(201, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def list_project_tags(self, project_id):
+        """List tags for a project."""
+        url = "projects/%s/tags" % project_id
+        resp, body = self.get(url)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def update_all_project_tags(self, project_id, tags, **kwargs):
+        """Updates all the tags for a project.
+
+        Any existing tags not specified will be deleted.
+
+        For a full list of available parameters, please refer to the official
+        API reference:
+        https://developer.openstack.org/api-ref/identity/v3/#modify-tag-list-for-a-project
+        """
+        body = {'tags': tags}
+        if kwargs:
+            body.update(kwargs)
+        put_body = json.dumps(body)
+        resp, body = self.put('projects/%s/tags' % project_id, put_body)
+        self.expected_success(200, resp.status)
+        body = json.loads(body)
+        return rest_client.ResponseBody(resp, body)
+
+    def check_project_tag_existence(self, project_id, tag):
+        """Check if a project contains a tag."""
+        url = 'projects/%s/tags/%s' % (project_id, tag)
+        resp, body = self.get(url)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_project_tag(self, project_id, tag):
+        """Delete a project tag."""
+        url = 'projects/%s/tags/%s' % (project_id, tag)
+        resp, body = self.delete(url)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
+
+    def delete_all_project_tags(self, project_id):
+        """Delete all tags from a project."""
+        resp, body = self.delete('projects/%s/tags' % project_id)
+        self.expected_success(204, resp.status)
+        return rest_client.ResponseBody(resp, body)
diff --git a/tempest/lib/services/identity/v3/token_client.py b/tempest/lib/services/identity/v3/token_client.py
index 33f6f16..d591f03 100644
--- a/tempest/lib/services/identity/v3/token_client.py
+++ b/tempest/lib/services/identity/v3/token_client.py
@@ -51,7 +51,8 @@
     def auth(self, user_id=None, username=None, password=None, project_id=None,
              project_name=None, user_domain_id=None, user_domain_name=None,
              project_domain_id=None, project_domain_name=None, domain_id=None,
-             domain_name=None, token=None):
+             domain_name=None, token=None, app_cred_id=None,
+             app_cred_secret=None):
         """Obtains a token from the authentication service
 
         :param user_id: user id
@@ -109,6 +110,13 @@
             if _domain:
                 id_obj['password']['user']['domain'] = _domain
 
+        if app_cred_id and app_cred_secret:
+            id_obj['methods'].append('application_credential')
+            id_obj['application_credential'] = {
+                'id': app_cred_id,
+                'secret': app_cred_secret,
+            }
+
         if (project_id or project_name):
             _project = dict()
 
diff --git a/tempest/scenario/manager.py b/tempest/scenario/manager.py
index c78646f..cf53b67 100644
--- a/tempest/scenario/manager.py
+++ b/tempest/scenario/manager.py
@@ -662,8 +662,8 @@
                 addresses = (server['addresses'][network['name']]
                              if network else [])
             for address in addresses:
-                if (address['version'] == CONF.validation.ip_version_for_ssh
-                        and address['OS-EXT-IPS:type'] == 'fixed'):
+                if (address['version'] == CONF.validation.ip_version_for_ssh and  # noqa
+                        address['OS-EXT-IPS:type'] == 'fixed'):
                     return address['addr']
             raise exceptions.ServerUnreachable(server_id=server['id'])
         else:
@@ -792,8 +792,8 @@
         port_map = [(p["id"], fxip["ip_address"])
                     for p in ports
                     for fxip in p["fixed_ips"]
-                    if netutils.is_valid_ipv4(fxip["ip_address"])
-                    and p['status'] in p_status]
+                    if (netutils.is_valid_ipv4(fxip["ip_address"]) and
+                        p['status'] in p_status)]
         inactive = [p for p in ports if p['status'] != 'ACTIVE']
         if inactive:
             LOG.warning("Instance has ports that are not ACTIVE: %s", inactive)
diff --git a/tempest/scenario/test_network_advanced_server_ops.py b/tempest/scenario/test_network_advanced_server_ops.py
index e4ab11c..87ce951 100644
--- a/tempest/scenario/test_network_advanced_server_ops.py
+++ b/tempest/scenario/test_network_advanced_server_ops.py
@@ -43,8 +43,8 @@
     @classmethod
     def skip_checks(cls):
         super(TestNetworkAdvancedServerOps, cls).skip_checks()
-        if not (CONF.network.project_networks_reachable
-                or CONF.network.public_network_id):
+        if not (CONF.network.project_networks_reachable or
+                CONF.network.public_network_id):
             msg = ('Either project_networks_reachable must be "true", or '
                    'public_network_id must be defined.')
             raise cls.skipException(msg)
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index fd9c985..bcd4ddb 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -81,8 +81,8 @@
     @classmethod
     def skip_checks(cls):
         super(TestNetworkBasicOps, cls).skip_checks()
-        if not (CONF.network.project_networks_reachable
-                or CONF.network.public_network_id):
+        if not (CONF.network.project_networks_reachable or
+                CONF.network.public_network_id):
             msg = ('Either project_networks_reachable must be "true", or '
                    'public_network_id must be defined.')
             raise cls.skipException(msg)
diff --git a/tempest/scenario/test_network_v6.py b/tempest/scenario/test_network_v6.py
index 9f4e62b..e4e39c3 100644
--- a/tempest/scenario/test_network_v6.py
+++ b/tempest/scenario/test_network_v6.py
@@ -38,11 +38,11 @@
     @classmethod
     def skip_checks(cls):
         super(TestGettingAddress, cls).skip_checks()
-        if not (CONF.network_feature_enabled.ipv6
-                and CONF.network_feature_enabled.ipv6_subnet_attributes):
+        if not (CONF.network_feature_enabled.ipv6 and
+                CONF.network_feature_enabled.ipv6_subnet_attributes):
             raise cls.skipException('IPv6 or its attributes not supported')
-        if not (CONF.network.project_networks_reachable
-                or CONF.network.public_network_id):
+        if not (CONF.network.project_networks_reachable or
+                CONF.network.public_network_id):
             msg = ('Either project_networks_reachable must be "true", or '
                    'public_network_id must be defined.')
             raise cls.skipException(msg)
diff --git a/tempest/scenario/test_server_advanced_ops.py b/tempest/scenario/test_server_advanced_ops.py
index 89b9fdd..8aa729b 100644
--- a/tempest/scenario/test_server_advanced_ops.py
+++ b/tempest/scenario/test_server_advanced_ops.py
@@ -32,7 +32,6 @@
     """The test suite for server advanced operations
 
     This test case stresses some advanced server instance operations:
-     * Resizing a volume-backed instance
      * Sequence suspend resume
     """
 
diff --git a/tempest/test.py b/tempest/test.py
index 27e0165..f2babbb 100644
--- a/tempest/test.py
+++ b/tempest/test.py
@@ -68,9 +68,9 @@
 def validate_tearDownClass():
     if at_exit_set:
         LOG.error(
-            "tearDownClass does not call the super's "
-            "tearDownClass in these classes: \n"
-            + str(at_exit_set))
+            "tearDownClass does not call the super's tearDownClass in "
+            "these classes:\n"
+            "  %s", at_exit_set)
 
 
 atexit.register(validate_tearDownClass)
@@ -582,8 +582,8 @@
         super(BaseTestCase, self).setUp()
         if not self.__setupclass_called:
             raise RuntimeError("setUpClass does not calls the super's"
-                               "setUpClass in the "
-                               + self.__class__.__name__)
+                               "setUpClass in the " +
+                               self.__class__.__name__)
         at_exit_set.add(self.__class__)
         test_timeout = os.environ.get('OS_TEST_TIMEOUT', 0)
         try:
@@ -602,7 +602,7 @@
             stderr = self.useFixture(fixtures.StringStream('stderr')).stream
             self.useFixture(fixtures.MonkeyPatch('sys.stderr', stderr))
         if (os.environ.get('OS_LOG_CAPTURE') != 'False' and
-            os.environ.get('OS_LOG_CAPTURE') != '0'):
+                os.environ.get('OS_LOG_CAPTURE') != '0'):
             self.useFixture(fixtures.LoggerFixture(nuke_handlers=False,
                                                    format=self.log_format,
                                                    level=None))
diff --git a/tempest/tests/api/compute/test_base.py b/tempest/tests/api/compute/test_base.py
index 5024100..47f4ad6 100644
--- a/tempest/tests/api/compute/test_base.py
+++ b/tempest/tests/api/compute/test_base.py
@@ -173,3 +173,20 @@
         # make our assertions
         wait_for_image_status.assert_called_once_with(
             compute_images_client, image_id, 'SAVING')
+
+    def _test_version_compatible(self, max_version, expected=True):
+        actual = (compute_base.BaseV2ComputeTest.
+                  is_requested_microversion_compatible(max_version))
+        self.assertEqual(expected, actual)
+
+    def test_check_lower_version(self):
+        compute_base.BaseV2ComputeTest.request_microversion = '2.8'
+        self._test_version_compatible('2.40')
+
+    def test_check_euqal_version(self):
+        compute_base.BaseV2ComputeTest.request_microversion = '2.40'
+        self._test_version_compatible('2.40')
+
+    def test_check_higher_version(self):
+        compute_base.BaseV2ComputeTest.request_microversion = '2.41'
+        self._test_version_compatible('2.40', expected=False)
diff --git a/tempest/tests/base.py b/tempest/tests/base.py
index ca81d4d..0b53b45 100644
--- a/tempest/tests/base.py
+++ b/tempest/tests/base.py
@@ -18,7 +18,7 @@
 
 class TestCase(base.BaseTestCase):
 
-    def patch(self, target, **kwargs):
+    def patch(self, target, *args, **kwargs):
         """Returns a started `mock.patch` object for the supplied target.
 
         The caller may then call the returned patcher to create a mock object.
@@ -27,23 +27,35 @@
         patcher object, as this method automatically adds a cleanup
         to the test class to stop the patcher.
 
-        :param target: String module.class or module.object expression to patch
-        :param **kwargs: Passed as-is to `mock.patch`. See mock documentation
-                         for details.
+        :param target: string module.class or module.object expression to patch
+        :param *args: passed as-is to `mock.patch`.
+        :param **kwargs: passed as-is to `mock.patch`.
+
+        See mock documentation for more details:
+        https://docs.python.org/3.5/library/unittest.mock.html#unittest.mock.patch
         """
-        p = mock.patch(target, **kwargs)
+
+        p = mock.patch(target, *args, **kwargs)
         m = p.start()
         self.addCleanup(p.stop)
         return m
 
-    def patchobject(self, target, attribute, new=mock.DEFAULT):
+    def patchobject(self, target, attribute, *args, **kwargs):
         """Convenient wrapper around `mock.patch.object`
 
         Returns a started mock that will be automatically stopped after the
         test ran.
+
+        :param target: object to have the attribute patched
+        :param attribute: name of the attribute to be patched
+        :param *args: passed as-is to `mock.patch.object`.
+        :param **kwargs: passed as-is to `mock.patch.object`.
+
+        See mock documentation for more details:
+        https://docs.python.org/3.5/library/unittest.mock.html#unittest.mock.patch.object
         """
 
-        p = mock.patch.object(target, attribute, new)
+        p = mock.patch.object(target, attribute, *args, **kwargs)
         m = p.start()
         self.addCleanup(p.stop)
         return m
diff --git a/tempest/tests/lib/services/identity/v3/test_application_credentials_client.py b/tempest/tests/lib/services/identity/v3/test_application_credentials_client.py
new file mode 100644
index 0000000..9bf9b68
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_application_credentials_client.py
@@ -0,0 +1,156 @@
+# Copyright 2018 SUSE Linux GmbH
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from tempest.lib.services.identity.v3 import application_credentials_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestApplicationCredentialsClient(base.BaseServiceTest):
+    FAKE_CREATE_APP_CRED = {
+        "application_credential": {
+            "description": "fake application credential",
+            "roles": [
+                {
+                    "id": "c60fdd45",
+                    "domain_id": None,
+                    "name": "Member"
+                }
+            ],
+            "expires_at": "2019-02-27T18:30:59.999999Z",
+            "secret": "_BVq0xU5L",
+            "unrestricted": None,
+            "project_id": "ddef321",
+            "id": "5499a186",
+            "name": "one"
+        }
+    }
+
+    FAKE_LIST_APP_CREDS = {
+        "application_credentials": [
+            {
+                "description": "fake application credential",
+                "roles": [
+                    {
+                        "domain_id": None,
+                        "name": "Member",
+                        "id": "c60fdd45",
+                    }
+                ],
+                "expires_at": "2018-02-27T18:30:59.999999Z",
+                "unrestricted": None,
+                "project_id": "ddef321",
+                "id": "5499a186",
+                "name": "one"
+            },
+            {
+                "description": None,
+                "roles": [
+                    {
+                        "id": "0f1837c8",
+                        "domain_id": None,
+                        "name": "anotherrole"
+                    },
+                    {
+                        "id": "c60fdd45",
+                        "domain_id": None,
+                        "name": "Member"
+                    }
+                ],
+                "expires_at": None,
+                "unrestricted": None,
+                "project_id": "c5403d938",
+                "id": "d441c904f",
+                "name": "two"
+            }
+        ]
+    }
+
+    FAKE_APP_CRED_INFO = {
+        "application_credential": {
+            "description": None,
+            "roles": [
+                {
+                    "domain_id": None,
+                    "name": "Member",
+                    "id": "c60fdd45",
+                }
+            ],
+            "expires_at": None,
+            "unrestricted": None,
+            "project_id": "ddef321",
+            "id": "5499a186",
+            "name": "one"
+        }
+    }
+
+    def setUp(self):
+        super(TestApplicationCredentialsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = \
+            application_credentials_client.ApplicationCredentialsClient(
+                fake_auth, 'identity', 'regionOne')
+
+    def _test_create_app_cred(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.create_application_credential,
+            'tempest.lib.common.rest_client.RestClient.post',
+            self.FAKE_CREATE_APP_CRED,
+            bytes_body,
+            status=201,
+            user_id="123456")
+
+    def _test_show_app_cred(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.show_application_credential,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_APP_CRED_INFO,
+            bytes_body,
+            user_id="123456",
+            application_credential_id="5499a186")
+
+    def _test_list_app_creds(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_application_credentials,
+            'tempest.lib.common.rest_client.RestClient.get',
+            self.FAKE_LIST_APP_CREDS,
+            bytes_body,
+            user_id="123456")
+
+    def test_create_application_credential_with_str_body(self):
+        self._test_create_app_cred()
+
+    def test_create_application_credential_with_bytes_body(self):
+        self._test_create_app_cred(bytes_body=True)
+
+    def test_show_application_credential_with_str_body(self):
+        self._test_show_app_cred()
+
+    def test_show_application_credential_with_bytes_body(self):
+        self._test_show_app_cred(bytes_body=True)
+
+    def test_list_application_credential_with_str_body(self):
+        self._test_list_app_creds()
+
+    def test_list_application_credential_with_bytes_body(self):
+        self._test_list_app_creds(bytes_body=True)
+
+    def test_delete_trust(self):
+        self.check_service_client_function(
+            self.client.delete_application_credential,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            user_id="123456",
+            application_credential_id="5499a186",
+            status=204)
diff --git a/tempest/tests/lib/services/identity/v3/test_project_tags_client.py b/tempest/tests/lib/services/identity/v3/test_project_tags_client.py
new file mode 100644
index 0000000..2d65a29
--- /dev/null
+++ b/tempest/tests/lib/services/identity/v3/test_project_tags_client.py
@@ -0,0 +1,104 @@
+# Copyright 2018 AT&T Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+from tempest.lib.services.identity.v3 import project_tags_client
+from tempest.tests.lib import fake_auth_provider
+from tempest.tests.lib.services import base
+
+
+class TestProjectTagsClient(base.BaseServiceTest):
+
+    FAKE_PROJECT_ID = "0c4e939acacf4376bdcd1129f1a054ad"
+
+    FAKE_PROJECT_TAG = "foo"
+
+    FAKE_PROJECT_TAGS = ["foo", "bar"]
+
+    def setUp(self):
+        super(TestProjectTagsClient, self).setUp()
+        fake_auth = fake_auth_provider.FakeAuthProvider()
+        self.client = project_tags_client.ProjectTagsClient(fake_auth,
+                                                            'identity',
+                                                            'regionOne')
+
+    def _test_update_project_tag(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_project_tag,
+            'tempest.lib.common.rest_client.RestClient.put',
+            {},
+            bytes_body,
+            project_id=self.FAKE_PROJECT_ID,
+            tag=self.FAKE_PROJECT_TAG,
+            status=201)
+
+    def _test_list_project_tags(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.list_project_tags,
+            'tempest.lib.common.rest_client.RestClient.get',
+            {"tags": self.FAKE_PROJECT_TAGS},
+            bytes_body,
+            project_id=self.FAKE_PROJECT_ID)
+
+    def _test_update_all_project_tags(self, bytes_body=False):
+        self.check_service_client_function(
+            self.client.update_all_project_tags,
+            'tempest.lib.common.rest_client.RestClient.put',
+            {"tags": self.FAKE_PROJECT_TAGS},
+            bytes_body,
+            project_id=self.FAKE_PROJECT_ID,
+            tags=self.FAKE_PROJECT_TAGS)
+
+    def test_update_project_tag_with_str_body(self):
+        self._test_update_project_tag()
+
+    def test_update_project_tag_with_bytes_body(self):
+        self._test_update_project_tag(bytes_body=True)
+
+    def test_list_project_tags_with_str_body(self):
+        self._test_list_project_tags()
+
+    def test_list_project_tags_with_bytes_body(self):
+        self._test_list_project_tags(bytes_body=True)
+
+    def test_update_all_project_tags_with_str_body(self):
+        self._test_update_all_project_tags()
+
+    def test_update_all_project_tags_with_bytes_body(self):
+        self._test_update_all_project_tags(bytes_body=True)
+
+    def test_check_project_project_tag_existence(self):
+        self.check_service_client_function(
+            self.client.check_project_tag_existence,
+            'tempest.lib.common.rest_client.RestClient.get',
+            {},
+            project_id=self.FAKE_PROJECT_ID,
+            tag=self.FAKE_PROJECT_TAG,
+            status=204)
+
+    def test_delete_project_tag(self):
+        self.check_service_client_function(
+            self.client.delete_project_tag,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            project_id=self.FAKE_PROJECT_ID,
+            tag=self.FAKE_PROJECT_TAG,
+            status=204)
+
+    def test_delete_all_project_tags(self):
+        self.check_service_client_function(
+            self.client.delete_all_project_tags,
+            'tempest.lib.common.rest_client.RestClient.delete',
+            {},
+            project_id=self.FAKE_PROJECT_ID,
+            status=204)
diff --git a/tools/generate-tempest-plugins-list.py b/tools/generate-tempest-plugins-list.py
index dd05438..bbb9019 100644
--- a/tools/generate-tempest-plugins-list.py
+++ b/tools/generate-tempest-plugins-list.py
@@ -75,11 +75,13 @@
 # json library won't choke.
 projects = sorted(filter(is_in_openstack_namespace, json.loads(r.read()[4:])))
 
-# Retrieve projects having no deb, ui or spec namespace as those namespaces
-# do not contains tempest plugins.
-projects_list = [i for i in projects if not (i.startswith('openstack/deb-') or
-                                             i.endswith('-ui') or
-                                             i.endswith('-specs'))]
+# Retrieve projects having no deb, puppet, ui or spec namespace as those
+# namespaces do not contains tempest plugins.
+projects_list = [i for i in projects if not (
+    i.startswith('openstack/deb-') or
+    i.startswith('openstack/puppet-') or
+    i.endswith('-ui') or
+    i.endswith('-specs'))]
 
 found_plugins = list(filter(has_tempest_plugin, projects_list))