diff --git a/doc/source/microversion_testing.rst b/doc/source/microversion_testing.rst
index adbd2dc..b516055 100644
--- a/doc/source/microversion_testing.rst
+++ b/doc/source/microversion_testing.rst
@@ -1,13 +1,83 @@
-===================================
-How To Implement Microversion Tests
-===================================
+=================================
+Microversion Testing With Tempest
+=================================
 
-Tempest provides stable interfaces to test API Microversion.
-For Details, see: `API Microversion testing Framework`_
-This document explains how to implement Microversion tests using those
-interfaces.
+Many OpenStack Services provide their APIs with `microversion`_
+support and want to test them in Tempest.
 
-.. _API Microversion testing Framework: http://docs.openstack.org/developer/tempest/library/api_microversion_testing.html
+.. _microversion: http://specs.openstack.org/openstack/api-wg/guidelines/microversion_specification.html
+
+This document covers how to test microversions for each project and
+whether tests should live in Tempest or on project side.
+
+Tempest Scope For Microversion Testing
+""""""""""""""""""""""""""""""""""""""
+APIs microversions for any OpenStack service grow rapidly and
+testing each and every microversion in Tempest is not feasible and
+efficient way.
+Also not every API microversion changes the complete system behavior
+and many of them only change the API or DB layer to accept and return more
+data on API.
+
+Tempest is an integration test suite, but not all API microversion testing fall under this category.
+As a result, Tempest mainly covers integration test cases for microversions, Other testing coverage
+for microversion should be hosted on project side as functional tests or via Tempest plugin as per
+project guidelines.
+
+.. note:: Integration tests are those tests which involve more than one service to
+     verify the expected behavior by single or combination of API requests.
+     If a test is just to verify the API behavior as success and failure cases
+     or verify its expected response object, then it does not fall under integration
+     tests.
+
+Tempest will cover only integration testing of applicable microversions with
+below exceptions:
+
+  #. Test covers a feature which is important for interoperability. This covers tests requirement
+     from Defcore.
+  #. Test needed to fill Schema gaps.
+     Tempest validates API responses with defined JSON schema. API responses can be different on
+     each microversion and the JSON schemas need to be defined separately for the microversion.
+     While implementing new integration tests for a specific microversion, there
+     may be a gap in the JSON schemas (caused by previous microversions) implemented
+     in Tempest.
+     Filling that gap while implementing the new integration test cases is not efficient due to
+     many reasons:
+
+     * Hard to review
+     * Sync between multiple integration tests patches which try to fill the same schema gap at same
+       time
+     * Might delay the microversion change on project side where project team wants Tempest
+       tests to verify the results.
+
+     Tempest will allow to fill the schema gaps at the end of each cycle, or more
+     often if required.
+     Schema gap can be filled with testing those with a minimal set of tests. Those
+     tests might not be integration tests and might be already covered on project
+     side also.
+     This exception is needed because:
+
+     * Allow to create microversion response schema in Tempest at the same time that projects are
+       implementing their API microversions. This will make implementation easier for adding
+       required tests before a new microversion change can be merged in the corresponding project
+       and hence accelerate the development of microversions.
+     * New schema must be verified by at least one test case which exercises such schema.
+
+     For example:
+        If any projects implemented 4 API microversion say- v2.3, v2.4, v2.5, v2.6
+        Assume microversion v2.3, v2.4, v2.6 change the API Response which means Tempest
+        needs to add JSON schema for v2.3, v2.4, v2.6.
+        In that case if only 1 or 2 tests can verify all new schemas then we do not need
+        separate tests for each new schemas. In worst case, we have to add 3 separate tests.
+  #. Test covers service behavior at large scale with involvement of more deep layer like hypervisor
+     etc not just API/DB layer. This type of tests will be added case by case basis and
+     with project team consultation about why it cannot be covered on project side and worth to test
+     in Tempest.
+
+Project Scope For Microversion Testing
+""""""""""""""""""""""""""""""""""""""
+All microversions testing which are not covered under Tempest as per above section, should be
+tested on project side as functional tests or as Tempest plugin as per project decision.
 
 
 Configuration options for Microversion
@@ -36,6 +106,14 @@
 How To Implement Microversion Tests
 """""""""""""""""""""""""""""""""""
 
+Tempest provides stable interfaces to test API Microversion.
+For Details, see: `API Microversion testing Framework`_
+This document explains how to implement Microversion tests using those
+interfaces.
+
+.. _API Microversion testing Framework: http://docs.openstack.org/developer/tempest/library/api_microversion_testing.html
+
+
 Step1: Add skip logic based on configured Microversion range
 ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
 
diff --git a/doc/source/write_tests.rst b/doc/source/write_tests.rst
index 67b55aa..8488fb1 100644
--- a/doc/source/write_tests.rst
+++ b/doc/source/write_tests.rst
@@ -112,6 +112,7 @@
         super(TestExampleCase, cls).resource_setup()
         cls.shared_server = cls.servers_client.create_server(...)
 
+.. _credentials:
 
 Allocating Credentials
 ''''''''''''''''''''''
@@ -187,7 +188,7 @@
 +-------------------+---------------------+
 
 By default cls.os is available since it is allocated in the base tempest test
-class. (located in tempest/test.py) If your TestCase inherits from a different
+class (located in tempest/test.py). If your TestCase inherits from a different
 direct parent class (it'll still inherit from the BaseTestCase, just not
 directly) be sure to check if that class overrides allocated credentials.
 
@@ -198,10 +199,10 @@
 automatically setup when a tenant is created. Since tempest needs isolated
 tenants to function properly it also needs to handle network allocation. By
 default the base test class will allocate a network, subnet, and router
-automatically. (this depends on the configured credential provider, for more
-details see: :ref:`tempest_conf_network_allocation`) However, there are
-situations where you do no need all of these resources allocated. (or your
-TestCase inherits from a class that overrides the default in tempest/test.py)
+automatically (this depends on the configured credential provider, for more
+details see: :ref:`tempest_conf_network_allocation`). However, there are
+situations where you do no need all of these resources allocated (or your
+TestCase inherits from a class that overrides the default in tempest/test.py).
 There is a class level mechanism to override this allocation and specify which
 resources you need. To do this you need to call `cls.set_network_resources()`
 in the `setup_credentials()` method before the `super()`. For example::
@@ -241,3 +242,70 @@
 inheriting from classes other than the base TestCase in tempest/test.py it is
 worth checking the immediate parent for what is set to determine if your
 class needs to override that setting.
+
+Interacting with Credentials and Clients
+========================================
+
+Once you have your basic TestCase setup you'll want to start writing tests. To
+do that you need to interact with an OpenStack deployment. This section will
+cover how credentials and clients are used inside of Tempest tests.
+
+
+Manager Objects
+---------------
+
+The primary interface with which you interact with both credentials and
+API clients is the client manager object. These objects are created
+automatically by the base test class as part of credential setup (for more
+details see the previous :ref:`credentials` section). Each manager object is
+initialized with a set of credentials and has each client object already setup
+to use that set of credentials for making all the API requests. Each client is
+accessible as a top level attribute on the manager object. So to start making
+API requests you just access the client's method for making that call and the
+credentials are already setup for you. For example if you wanted to make an API
+call to create a server in Nova::
+
+  from tempest import test
+
+
+  class TestExampleCase(test.BaseTestCase):
+    def test_example_create_server(self):
+      self.os.servers_client.create_server(...)
+
+is all you need to do. As described previously, in the above example the ``self.os``
+is created automatically because the base test class sets the ``credentials``
+attribute to allocate a primary credential set and initializes the client
+manager as ``self.os``. This same access pattern can be used for all of the
+clients in Tempest.
+
+Credentials Objects
+-------------------
+
+In certain cases you need direct access to the credentials (the most common
+use case would be an API request that takes a user or project id in the request
+body). If you're in a situation where you need to access this you'll need to
+access the ``credentials`` object which is allocated from the configured
+credential provider in the base test class. This is accessible from the manager
+object via the manager's ``credentials`` attribute. For example::
+
+  from tempest import test
+
+
+  class TestExampleCase(test.BaseTestCase):
+    def test_example_create_server(self):
+      credentials = self.os.credentials
+
+The credentials object provides access to all of the credential information you
+would need to make API requests. For example, building off the previous
+example::
+
+  from tempest import test
+
+
+  class TestExampleCase(test.BaseTestCase):
+    def test_example_create_server(self):
+      credentials = self.os.credentials
+      username = credentials.username
+      user_id = credentials.user_id
+      password = credentials.password
+      tenant_id = credentials.tenant_id
diff --git a/tempest/api/identity/admin/v2/test_tenant_negative.py b/tempest/api/identity/admin/v2/test_tenant_negative.py
index 750f9f9..49bb949 100644
--- a/tempest/api/identity/admin/v2/test_tenant_negative.py
+++ b/tempest/api/identity/admin/v2/test_tenant_negative.py
@@ -42,9 +42,7 @@
     @decorators.idempotent_id('162ba316-f18b-4987-8c0c-fd9140cd63ed')
     def test_tenant_delete_by_unauthorized_user(self):
         # Non-administrator user should not be able to delete a tenant
-        tenant_name = data_utils.rand_name(name='tenant')
-        tenant = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        self.addCleanup(self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant()
         self.assertRaises(lib_exc.Forbidden,
                           self.non_admin_tenants_client.delete_tenant,
                           tenant['id'])
@@ -53,9 +51,7 @@
     @decorators.idempotent_id('e450db62-2e9d-418f-893a-54772d6386b1')
     def test_tenant_delete_request_without_token(self):
         # Request to delete a tenant without a valid token should fail
-        tenant_name = data_utils.rand_name(name='tenant')
-        tenant = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        self.addCleanup(self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant()
         token = self.client.auth_provider.get_token()
         self.client.delete_token(token)
         self.assertRaises(lib_exc.Unauthorized,
@@ -75,10 +71,7 @@
     def test_tenant_create_duplicate(self):
         # Tenant names should be unique
         tenant_name = data_utils.rand_name(name='tenant')
-        body = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        tenant1_id = body.get('id')
-
-        self.addCleanup(self.tenants_client.delete_tenant, tenant1_id)
+        self.setup_test_tenant(name=tenant_name)
         self.assertRaises(lib_exc.Conflict, self.tenants_client.create_tenant,
                           name=tenant_name)
 
@@ -131,9 +124,7 @@
     @decorators.idempotent_id('41704dc5-c5f7-4f79-abfa-76e6fedc570b')
     def test_tenant_update_by_unauthorized_user(self):
         # Non-administrator user should not be able to update a tenant
-        tenant_name = data_utils.rand_name(name='tenant')
-        tenant = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        self.addCleanup(self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant()
         self.assertRaises(lib_exc.Forbidden,
                           self.non_admin_tenants_client.update_tenant,
                           tenant['id'])
@@ -142,9 +133,7 @@
     @decorators.idempotent_id('7a421573-72c7-4c22-a98e-ce539219c657')
     def test_tenant_update_request_without_token(self):
         # Request to update a tenant without a valid token should fail
-        tenant_name = data_utils.rand_name(name='tenant')
-        tenant = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        self.addCleanup(self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant()
         token = self.client.auth_provider.get_token()
         self.client.delete_token(token)
         self.assertRaises(lib_exc.Unauthorized,
diff --git a/tempest/api/identity/admin/v2/test_tenants.py b/tempest/api/identity/admin/v2/test_tenants.py
index 6b7413c..ad9b983 100644
--- a/tempest/api/identity/admin/v2/test_tenants.py
+++ b/tempest/api/identity/admin/v2/test_tenants.py
@@ -15,7 +15,6 @@
 
 from tempest.api.identity import base
 from tempest.lib.common.utils import data_utils
-from tempest.lib.common.utils import test_utils
 from tempest.lib import decorators
 
 
@@ -26,12 +25,7 @@
         # Create several tenants and delete them
         tenants = []
         for _ in range(3):
-            tenant_name = data_utils.rand_name(name='tenant-new')
-            tenant = self.tenants_client.create_tenant(
-                name=tenant_name)['tenant']
-            # Add the tenant to the cleanup list
-            self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                            self.tenants_client.delete_tenant, tenant['id'])
+            tenant = self.setup_test_tenant()
             tenants.append(tenant)
         tenant_ids = [tn['id'] for tn in tenants]
         body = self.tenants_client.list_tenants()['tenants']
@@ -48,14 +42,8 @@
     @decorators.idempotent_id('d25e9f24-1310-4d29-b61b-d91299c21d6d')
     def test_tenant_create_with_description(self):
         # Create tenant with a description
-        tenant_name = data_utils.rand_name(name='tenant')
         tenant_desc = data_utils.rand_name(name='desc')
-        body = self.tenants_client.create_tenant(name=tenant_name,
-                                                 description=tenant_desc)
-        tenant = body['tenant']
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant(description=tenant_desc)
         tenant_id = tenant['id']
         desc1 = tenant['description']
         self.assertEqual(desc1, tenant_desc, 'Description should have '
@@ -69,13 +57,7 @@
     @decorators.idempotent_id('670bdddc-1cd7-41c7-b8e2-751cfb67df50')
     def test_tenant_create_enabled(self):
         # Create a tenant that is enabled
-        tenant_name = data_utils.rand_name(name='tenant')
-        body = self.tenants_client.create_tenant(name=tenant_name,
-                                                 enabled=True)
-        tenant = body['tenant']
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant(enabled=True)
         tenant_id = tenant['id']
         en1 = tenant['enabled']
         self.assertTrue(en1, 'Enable should be True in response')
@@ -87,13 +69,7 @@
     @decorators.idempotent_id('3be22093-b30f-499d-b772-38340e5e16fb')
     def test_tenant_create_not_enabled(self):
         # Create a tenant that is not enabled
-        tenant_name = data_utils.rand_name(name='tenant')
-        body = self.tenants_client.create_tenant(name=tenant_name,
-                                                 enabled=False)
-        tenant = body['tenant']
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant(enabled=False)
         tenant_id = tenant['id']
         en1 = tenant['enabled']
         self.assertEqual('false', str(en1).lower(),
@@ -108,14 +84,9 @@
     def test_tenant_update_name(self):
         # Update name attribute of a tenant
         t_name1 = data_utils.rand_name(name='tenant')
-        body = self.tenants_client.create_tenant(name=t_name1)['tenant']
-        tenant = body
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
-
-        t_id = body['id']
-        resp1_name = body['name']
+        tenant = self.setup_test_tenant(name=t_name1)
+        t_id = tenant['id']
+        resp1_name = tenant['name']
 
         t_name2 = data_utils.rand_name(name='tenant2')
         body = self.tenants_client.update_tenant(t_id, name=t_name2)['tenant']
@@ -134,15 +105,8 @@
     @decorators.idempotent_id('859fcfe1-3a03-41ef-86f9-b19a47d1cd87')
     def test_tenant_update_desc(self):
         # Update description attribute of a tenant
-        t_name = data_utils.rand_name(name='tenant')
         t_desc = data_utils.rand_name(name='desc')
-        body = self.tenants_client.create_tenant(name=t_name,
-                                                 description=t_desc)
-        tenant = body['tenant']
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
-
+        tenant = self.setup_test_tenant(description=t_desc)
         t_id = tenant['id']
         resp1_desc = tenant['description']
 
@@ -164,14 +128,8 @@
     @decorators.idempotent_id('8fc8981f-f12d-4c66-9972-2bdcf2bc2e1a')
     def test_tenant_update_enable(self):
         # Update the enabled attribute of a tenant
-        t_name = data_utils.rand_name(name='tenant')
         t_en = False
-        body = self.tenants_client.create_tenant(name=t_name, enabled=t_en)
-        tenant = body['tenant']
-        # Add the tenant to the cleanup list
-        self.addCleanup(test_utils.call_and_ignore_notfound_exc,
-                        self.tenants_client.delete_tenant, tenant['id'])
-
+        tenant = self.setup_test_tenant(enabled=t_en)
         t_id = tenant['id']
         resp1_en = tenant['enabled']
 
diff --git a/tempest/api/identity/admin/v2/test_tokens.py b/tempest/api/identity/admin/v2/test_tokens.py
index b288705..b4c9389 100644
--- a/tempest/api/identity/admin/v2/test_tokens.py
+++ b/tempest/api/identity/admin/v2/test_tokens.py
@@ -26,10 +26,7 @@
         user_name = data_utils.rand_name(name='user')
         user_password = data_utils.rand_password()
         # first:create a tenant
-        tenant_name = data_utils.rand_name(name='tenant')
-        tenant = self.tenants_client.create_tenant(name=tenant_name)['tenant']
-        # Delete the tenant at the end of the test
-        self.addCleanup(self.tenants_client.delete_tenant, tenant['id'])
+        tenant = self.setup_test_tenant()
         # second:create a user
         user = self.create_test_user(name=user_name,
                                      password=user_password,
@@ -70,16 +67,10 @@
 
         # Create a couple tenants.
         tenant1_name = data_utils.rand_name(name='tenant')
-        tenant1 = self.tenants_client.create_tenant(
-            name=tenant1_name)['tenant']
-        # Delete the tenant at the end of the test
-        self.addCleanup(self.tenants_client.delete_tenant, tenant1['id'])
+        tenant1 = self.setup_test_tenant(name=tenant1_name)
 
         tenant2_name = data_utils.rand_name(name='tenant')
-        tenant2 = self.tenants_client.create_tenant(
-            name=tenant2_name)['tenant']
-        # Delete the tenant at the end of the test
-        self.addCleanup(self.tenants_client.delete_tenant, tenant2['id'])
+        tenant2 = self.setup_test_tenant(name=tenant2_name)
 
         # Create a role
         role = self.setup_test_role()
diff --git a/tempest/api/identity/admin/v3/test_default_project_id.py b/tempest/api/identity/admin/v3/test_default_project_id.py
index c2ab488..ac2faa9 100644
--- a/tempest/api/identity/admin/v3/test_default_project_id.py
+++ b/tempest/api/identity/admin/v3/test_default_project_id.py
@@ -42,13 +42,10 @@
         self.addCleanup(self._delete_domain, dom_id)
 
         # create a project in the domain
-        proj_name = data_utils.rand_name('proj')
-        proj_body = self.projects_client.create_project(
-            proj_name, domain_id=dom_id)['project']
+        proj_body = self.setup_test_project(domain_id=dom_id)
         proj_id = proj_body['id']
-        self.addCleanup(self.projects_client.delete_project, proj_id)
         self.assertEqual(proj_body['domain_id'], dom_id,
-                         "project " + proj_name +
+                         "project " + proj_body['name'] +
                          "doesn't have domain id " + dom_id)
 
         # create a user in the domain, with the previous project as his
diff --git a/tempest/api/identity/admin/v3/test_inherits.py b/tempest/api/identity/admin/v3/test_inherits.py
index 4de0f5b..f630f74 100644
--- a/tempest/api/identity/admin/v3/test_inherits.py
+++ b/tempest/api/identity/admin/v3/test_inherits.py
@@ -147,12 +147,8 @@
         src_role = self.setup_test_role()
 
         # Create a project hierarchy
-        leaf_project_name = data_utils.rand_name('project')
-        leaf_project = self.projects_client.create_project(
-            leaf_project_name, domain_id=self.domain['id'],
-            parent_id=self.project['id'])['project']
-        self.addCleanup(
-            self.projects_client.delete_project, leaf_project['id'])
+        leaf_project = self.setup_test_project(domain_id=self.domain['id'],
+                                               parent_id=self.project['id'])
 
         # Assign role on domain
         self.inherited_roles_client.create_inherited_role_on_domains_user(
@@ -195,12 +191,8 @@
         src_role = self.setup_test_role()
 
         # Create a project hierarchy
-        leaf_project_name = data_utils.rand_name('project')
-        leaf_project = self.projects_client.create_project(
-            leaf_project_name, domain_id=self.domain['id'],
-            parent_id=self.project['id'])['project']
-        self.addCleanup(
-            self.projects_client.delete_project, leaf_project['id'])
+        leaf_project = self.setup_test_project(domain_id=self.domain['id'],
+                                               parent_id=self.project['id'])
 
         # Assign role on parent project
         self.inherited_roles_client.create_inherited_role_on_projects_user(
diff --git a/tempest/api/identity/admin/v3/test_projects.py b/tempest/api/identity/admin/v3/test_projects.py
index 258581b..1b1d3f7 100644
--- a/tempest/api/identity/admin/v3/test_projects.py
+++ b/tempest/api/identity/admin/v3/test_projects.py
@@ -26,11 +26,8 @@
     @decorators.idempotent_id('0ecf465c-0dc4-4532-ab53-91ffeb74d12d')
     def test_project_create_with_description(self):
         # Create project with a description
-        project_name = data_utils.rand_name('project')
         project_desc = data_utils.rand_name('desc')
-        project = self.projects_client.create_project(
-            project_name, description=project_desc)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(description=project_desc)
         project_id = project['id']
         desc1 = project['description']
         self.assertEqual(desc1, project_desc, 'Description should have '
@@ -45,9 +42,8 @@
         # Create project with a domain
         domain = self.setup_test_domain()
         project_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(
-            project_name, domain_id=domain['id'])['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(
+            name=project_name, domain_id=domain['id'])
         project_id = project['id']
         self.assertEqual(project_name, project['name'])
         self.assertEqual(domain['id'], project['domain_id'])
@@ -62,10 +58,8 @@
         domain_id = domain['id']
 
         root_project_name = data_utils.rand_name('root_project')
-        root_project = self.projects_client.create_project(
-            root_project_name, domain_id=domain_id)['project']
-        self.addCleanup(
-            self.projects_client.delete_project, root_project['id'])
+        root_project = self.setup_test_project(
+            name=root_project_name, domain_id=domain_id)
 
         root_project_id = root_project['id']
         parent_id = root_project['parent_id']
@@ -76,21 +70,16 @@
 
         # Create a project using root_project_id as parent_id
         project_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(
-            project_name, domain_id=domain_id,
-            parent_id=root_project_id)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(
+            name=project_name, domain_id=domain_id, parent_id=root_project_id)
         parent_id = project['parent_id']
         self.assertEqual(project_name, project['name'])
         self.assertEqual(root_project_id, parent_id)
 
     @decorators.idempotent_id('a7eb9416-6f9b-4dbb-b71b-7f73aaef59d5')
     def test_create_is_domain_project(self):
-        project_name = data_utils.rand_name('is_domain_project')
-        project = self.projects_client.create_project(
-            project_name, domain_id=None, is_domain=True)['project']
+        project = self.setup_test_project(domain_id=None, is_domain=True)
         # To delete a domain, we need to disable it first
-        self.addCleanup(self.projects_client.delete_project, project['id'])
         self.addCleanup(self.projects_client.update_project, project['id'],
                         enabled=False)
 
@@ -109,10 +98,7 @@
     @decorators.idempotent_id('1f66dc76-50cc-4741-a200-af984509e480')
     def test_project_create_enabled(self):
         # Create a project that is enabled
-        project_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(
-            project_name, enabled=True)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(enabled=True)
         project_id = project['id']
         en1 = project['enabled']
         self.assertTrue(en1, 'Enable should be True in response')
@@ -123,10 +109,7 @@
     @decorators.idempotent_id('78f96a9c-e0e0-4ee6-a3ba-fbf6dfd03207')
     def test_project_create_not_enabled(self):
         # Create a project that is not enabled
-        project_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(
-            project_name, enabled=False)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(enabled=False)
         en1 = project['enabled']
         self.assertEqual('false', str(en1).lower(),
                          'Enable should be False in response')
@@ -139,8 +122,7 @@
     def test_project_update_name(self):
         # Update name attribute of a project
         p_name1 = data_utils.rand_name('project')
-        project = self.projects_client.create_project(p_name1)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(name=p_name1)
 
         resp1_name = project['name']
 
@@ -160,11 +142,8 @@
     @decorators.idempotent_id('f138b715-255e-4a7d-871d-351e1ef2e153')
     def test_project_update_desc(self):
         # Update description attribute of a project
-        p_name = data_utils.rand_name('project')
         p_desc = data_utils.rand_name('desc')
-        project = self.projects_client.create_project(
-            p_name, description=p_desc)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(description=p_desc)
         resp1_desc = project['description']
 
         p_desc2 = data_utils.rand_name('desc2')
@@ -183,11 +162,8 @@
     @decorators.idempotent_id('b6b25683-c97f-474d-a595-55d410b68100')
     def test_project_update_enable(self):
         # Update the enabled attribute of a project
-        p_name = data_utils.rand_name('project')
         p_en = False
-        project = self.projects_client.create_project(p_name,
-                                                      enabled=p_en)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project(enabled=p_en)
 
         resp1_en = project['enabled']
 
@@ -208,9 +184,7 @@
     def test_associate_user_to_project(self):
         # Associate a user to a project
         # Create a Project
-        p_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(p_name)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project()
 
         # Create a User
         u_name = data_utils.rand_name('user')
diff --git a/tempest/api/identity/admin/v3/test_projects_negative.py b/tempest/api/identity/admin/v3/test_projects_negative.py
index 6277fda..33a9c8c 100644
--- a/tempest/api/identity/admin/v3/test_projects_negative.py
+++ b/tempest/api/identity/admin/v3/test_projects_negative.py
@@ -33,8 +33,7 @@
     def test_project_create_duplicate(self):
         # Project names should be unique
         project_name = data_utils.rand_name('project-dup')
-        project = self.projects_client.create_project(project_name)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        self.setup_test_project(name=project_name)
 
         self.assertRaises(lib_exc.Conflict,
                           self.projects_client.create_project, project_name)
@@ -67,9 +66,7 @@
     @decorators.idempotent_id('8d68c012-89e0-4394-8d6b-ccd7196def97')
     def test_project_delete_by_unauthorized_user(self):
         # Non-admin user should not be able to delete a project
-        project_name = data_utils.rand_name('project')
-        project = self.projects_client.create_project(project_name)['project']
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project()
         self.assertRaises(
             lib_exc.Forbidden, self.non_admin_projects_client.delete_project,
             project['id'])
diff --git a/tempest/api/identity/admin/v3/test_tokens.py b/tempest/api/identity/admin/v3/test_tokens.py
index de4f580..1a9502a 100644
--- a/tempest/api/identity/admin/v3/test_tokens.py
+++ b/tempest/api/identity/admin/v3/test_tokens.py
@@ -65,13 +65,10 @@
 
         # Create a couple projects
         project1_name = data_utils.rand_name(name='project')
-        project1 = self.projects_client.create_project(
-            project1_name)['project']
-        self.addCleanup(self.projects_client.delete_project, project1['id'])
+        project1 = self.setup_test_project(name=project1_name)
 
         project2_name = data_utils.rand_name(name='project')
-        project2 = self.projects_client.create_project(
-            project2_name)['project']
+        project2 = self.setup_test_project(name=project2_name)
         self.addCleanup(self.projects_client.delete_project, project2['id'])
 
         # Create a role
diff --git a/tempest/api/identity/admin/v3/test_users.py b/tempest/api/identity/admin/v3/test_users.py
index 28137ad..4f271cb 100644
--- a/tempest/api/identity/admin/v3/test_users.py
+++ b/tempest/api/identity/admin/v3/test_users.py
@@ -42,11 +42,7 @@
         # Delete the User at the end of this method
         self.addCleanup(self.users_client.delete_user, user['id'])
         # Creating second project for updation
-        project = self.projects_client.create_project(
-            data_utils.rand_name('project'),
-            description=data_utils.rand_name('project-desc'))['project']
-        # Delete the Project at the end of this method
-        self.addCleanup(self.projects_client.delete_project, project['id'])
+        project = self.setup_test_project()
         # Updating user details with new values
         u_name2 = data_utils.rand_name('user2')
         u_email2 = u_name2 + '@testmail.tm'
@@ -102,11 +98,7 @@
         # List the projects that a user has access upon
         assigned_project_ids = list()
         fetched_project_ids = list()
-        u_project = self.projects_client.create_project(
-            data_utils.rand_name('project'),
-            description=data_utils.rand_name('project-desc'))['project']
-        # Delete the Project at the end of this method
-        self.addCleanup(self.projects_client.delete_project, u_project['id'])
+        u_project = self.setup_test_project()
         # Create a user.
         u_name = data_utils.rand_name('user')
         u_desc = u_name + 'description'
@@ -124,14 +116,9 @@
         role = self.roles_client.show_role(role_body['id'])['role']
         for _ in range(2):
             # Creating project so as to assign role
-            project_body = self.projects_client.create_project(
-                data_utils.rand_name('project'),
-                description=data_utils.rand_name('project-desc'))['project']
+            project_body = self.setup_test_project()
             project = self.projects_client.show_project(
                 project_body['id'])['project']
-            # Delete the Project at the end of this method
-            self.addCleanup(
-                self.projects_client.delete_project, project_body['id'])
             # Assigning roles to user on project
             self.roles_client.create_user_role_on_project(project['id'],
                                                           user['id'],
diff --git a/tempest/api/identity/base.py b/tempest/api/identity/base.py
index 06cc120..aff3238 100644
--- a/tempest/api/identity/base.py
+++ b/tempest/api/identity/base.py
@@ -152,11 +152,13 @@
         user = self.create_test_user(tenantId=tenant['id'], password=password)
         return user
 
-    def setup_test_tenant(self):
+    def setup_test_tenant(self, **kwargs):
         """Set up a test tenant."""
-        tenant = self.projects_client.create_tenant(
-            name=data_utils.rand_name('test_tenant'),
-            description=data_utils.rand_name('desc'))['tenant']
+        if 'name' not in kwargs:
+            kwargs['name'] = data_utils.rand_name('test_tenant')
+        if 'description' not in kwargs:
+            kwargs['description'] = data_utils.rand_name('desc')
+        tenant = self.projects_client.create_tenant(**kwargs)['tenant']
         # Delete the tenant at the end of the test
         self.addCleanup(
             test_utils.call_and_ignore_notfound_exc,
@@ -247,11 +249,13 @@
                                      password=password)
         return user
 
-    def setup_test_project(self):
+    def setup_test_project(self, **kwargs):
         """Set up a test project."""
-        project = self.projects_client.create_project(
-            name=data_utils.rand_name('test_project'),
-            description=data_utils.rand_name('desc'))['project']
+        if 'name' not in kwargs:
+            kwargs['name'] = data_utils.rand_name('test_project')
+        if 'description' not in kwargs:
+            kwargs['description'] = data_utils.rand_name('test_description')
+        project = self.projects_client.create_project(**kwargs)['project']
         # Delete the project at the end of the test
         self.addCleanup(
             test_utils.call_and_ignore_notfound_exc,
diff --git a/tempest/api/object_storage/test_account_quotas_negative.py b/tempest/api/object_storage/test_account_quotas_negative.py
index 6784a55..f955d34 100644
--- a/tempest/api/object_storage/test_account_quotas_negative.py
+++ b/tempest/api/object_storage/test_account_quotas_negative.py
@@ -82,11 +82,13 @@
         """Test that a user cannot modify or remove a quota on its account."""
 
         # Not able to remove quota
-        self.assertRaises(lib_exc.Forbidden,
-                          self.account_client.create_account_metadata,
-                          {"Quota-Bytes": ""})
+        self.assertRaises(
+            lib_exc.Forbidden,
+            self.account_client.create_update_or_delete_account_metadata,
+            create_update_metadata={"Quota-Bytes": ""})
 
         # Not able to modify quota
-        self.assertRaises(lib_exc.Forbidden,
-                          self.account_client.create_account_metadata,
-                          {"Quota-Bytes": "100"})
+        self.assertRaises(
+            lib_exc.Forbidden,
+            self.account_client.create_update_or_delete_account_metadata,
+            create_update_metadata={"Quota-Bytes": "100"})
diff --git a/tempest/api/object_storage/test_account_services.py b/tempest/api/object_storage/test_account_services.py
index d0a3f10..e54b6e7 100644
--- a/tempest/api/object_storage/test_account_services.py
+++ b/tempest/api/object_storage/test_account_services.py
@@ -272,13 +272,15 @@
         # set metadata to account
         metadata = {'test-account-meta1': 'Meta1',
                     'test-account-meta2': 'Meta2'}
-        resp, _ = self.account_client.create_account_metadata(metadata)
+        resp, _ = self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
 
         resp, _ = self.account_client.list_account_metadata()
         self.assertHeaders(resp, 'Account', 'HEAD')
         self.assertIn('x-account-meta-test-account-meta1', resp)
         self.assertIn('x-account-meta-test-account-meta2', resp)
-        self.account_client.delete_account_metadata(metadata)
+        self.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=metadata)
 
     @decorators.idempotent_id('b904c2e3-24c2-4dba-ad7d-04e90a761be5')
     def test_list_no_account_metadata(self):
@@ -291,7 +293,8 @@
     def test_update_account_metadata_with_create_metadata(self):
         # add metadata to account
         metadata = {'test-account-meta1': 'Meta1'}
-        resp, _ = self.account_client.create_account_metadata(metadata)
+        resp, _ = self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
         self.assertHeaders(resp, 'Account', 'POST')
 
         resp, body = self.account_client.list_account_metadata()
@@ -299,14 +302,17 @@
         self.assertEqual(resp['x-account-meta-test-account-meta1'],
                          metadata['test-account-meta1'])
 
-        self.account_client.delete_account_metadata(metadata)
+        self.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=metadata)
 
     @decorators.idempotent_id('9f60348d-c46f-4465-ae06-d51dbd470953')
     def test_update_account_metadata_with_delete_metadata(self):
         # delete metadata from account
         metadata = {'test-account-meta1': 'Meta1'}
-        self.account_client.create_account_metadata(metadata)
-        resp, _ = self.account_client.delete_account_metadata(metadata)
+        self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
+        resp, _ = self.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=metadata)
         self.assertHeaders(resp, 'Account', 'POST')
 
         resp, _ = self.account_client.list_account_metadata()
@@ -317,7 +323,8 @@
         # if the value of metadata is not set, the metadata is not
         # registered at a server
         metadata = {'test-account-meta1': ''}
-        resp, _ = self.account_client.create_account_metadata(metadata)
+        resp, _ = self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
         self.assertHeaders(resp, 'Account', 'POST')
 
         resp, _ = self.account_client.list_account_metadata()
@@ -328,9 +335,11 @@
         # Although the value of metadata is not set, the feature of
         # deleting metadata is valid
         metadata_1 = {'test-account-meta1': 'Meta1'}
-        self.account_client.create_account_metadata(metadata_1)
+        self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata_1)
         metadata_2 = {'test-account-meta1': ''}
-        resp, _ = self.account_client.delete_account_metadata(metadata_2)
+        resp, _ = self.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=metadata_2)
         self.assertHeaders(resp, 'Account', 'POST')
 
         resp, _ = self.account_client.list_account_metadata()
@@ -340,11 +349,13 @@
     def test_update_account_metadata_with_create_and_delete_metadata(self):
         # Send a request adding and deleting metadata requests simultaneously
         metadata_1 = {'test-account-meta1': 'Meta1'}
-        self.account_client.create_account_metadata(metadata_1)
+        self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata_1)
         metadata_2 = {'test-account-meta2': 'Meta2'}
-        resp, body = self.account_client.create_and_delete_account_metadata(
-            metadata_2,
-            metadata_1)
+        resp, body = (
+            self.account_client.create_update_or_delete_account_metadata(
+                create_update_metadata=metadata_2,
+                delete_metadata=metadata_1))
         self.assertHeaders(resp, 'Account', 'POST')
 
         resp, _ = self.account_client.list_account_metadata()
@@ -353,4 +364,5 @@
         self.assertEqual(resp['x-account-meta-test-account-meta2'],
                          metadata_2['test-account-meta2'])
 
-        self.account_client.delete_account_metadata(metadata_2)
+        self.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=metadata_2)
diff --git a/tempest/api/object_storage/test_object_formpost.py b/tempest/api/object_storage/test_object_formpost.py
index c100629..3a2233a 100644
--- a/tempest/api/object_storage/test_object_formpost.py
+++ b/tempest/api/object_storage/test_object_formpost.py
@@ -37,7 +37,8 @@
 
         cls.key = 'Meta'
         cls.metadata = {'Temp-URL-Key': cls.key}
-        cls.account_client.create_account_metadata(metadata=cls.metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=cls.metadata)
 
     def setUp(self):
         super(ObjectFormPostTest, self).setUp()
@@ -53,7 +54,8 @@
 
     @classmethod
     def resource_cleanup(cls):
-        cls.account_client.delete_account_metadata(metadata=cls.metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=cls.metadata)
         cls.delete_containers()
         super(ObjectFormPostTest, cls).resource_cleanup()
 
diff --git a/tempest/api/object_storage/test_object_formpost_negative.py b/tempest/api/object_storage/test_object_formpost_negative.py
index cfa1875..c56d91a 100644
--- a/tempest/api/object_storage/test_object_formpost_negative.py
+++ b/tempest/api/object_storage/test_object_formpost_negative.py
@@ -38,7 +38,8 @@
 
         cls.key = 'Meta'
         cls.metadata = {'Temp-URL-Key': cls.key}
-        cls.account_client.create_account_metadata(metadata=cls.metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=cls.metadata)
 
     def setUp(self):
         super(ObjectFormPostNegativeTest, self).setUp()
@@ -54,7 +55,8 @@
 
     @classmethod
     def resource_cleanup(cls):
-        cls.account_client.delete_account_metadata(metadata=cls.metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=cls.metadata)
         cls.delete_containers()
         super(ObjectFormPostNegativeTest, cls).resource_cleanup()
 
diff --git a/tempest/api/object_storage/test_object_temp_url.py b/tempest/api/object_storage/test_object_temp_url.py
index 912deab..4b506f8 100644
--- a/tempest/api/object_storage/test_object_temp_url.py
+++ b/tempest/api/object_storage/test_object_temp_url.py
@@ -37,7 +37,8 @@
         cls.metadatas = []
         metadata = {'Temp-URL-Key': cls.key}
         cls.metadatas.append(metadata)
-        cls.account_client.create_account_metadata(metadata=metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
 
         # create an object
         cls.object_name, cls.content = cls.create_object(cls.container_name)
@@ -45,8 +46,8 @@
     @classmethod
     def resource_cleanup(cls):
         for metadata in cls.metadatas:
-            cls.account_client.delete_account_metadata(
-                metadata=metadata)
+            cls.account_client.create_update_or_delete_account_metadata(
+                delete_metadata=metadata)
 
         cls.delete_containers()
 
@@ -110,7 +111,8 @@
     def test_get_object_using_temp_url_key_2(self):
         key2 = 'Meta2-'
         metadata = {'Temp-URL-Key-2': key2}
-        self.account_client.create_account_metadata(metadata=metadata)
+        self.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=metadata)
         self.metadatas.append(metadata)
 
         # make sure the metadata has been set
diff --git a/tempest/api/object_storage/test_object_temp_url_negative.py b/tempest/api/object_storage/test_object_temp_url_negative.py
index 578249b..f4d63fd 100644
--- a/tempest/api/object_storage/test_object_temp_url_negative.py
+++ b/tempest/api/object_storage/test_object_temp_url_negative.py
@@ -39,14 +39,15 @@
         # update account metadata
         cls.key = 'Meta'
         cls.metadata = {'Temp-URL-Key': cls.key}
-        cls.account_client.create_account_metadata(metadata=cls.metadata)
+        cls.account_client.create_update_or_delete_account_metadata(
+            create_update_metadata=cls.metadata)
         cls.account_client_metadata, _ = \
             cls.account_client.list_account_metadata()
 
     @classmethod
     def resource_cleanup(cls):
-        resp, _ = cls.account_client.delete_account_metadata(
-            metadata=cls.metadata)
+        resp, _ = cls.account_client.create_update_or_delete_account_metadata(
+            delete_metadata=cls.metadata)
 
         cls.delete_containers()
 
diff --git a/tempest/api/volume/base.py b/tempest/api/volume/base.py
index a19af5d..767b3c7 100644
--- a/tempest/api/volume/base.py
+++ b/tempest/api/volume/base.py
@@ -65,7 +65,6 @@
     def setup_clients(cls):
         super(BaseVolumeTest, cls).setup_clients()
         cls.servers_client = cls.os.servers_client
-        cls.compute_networks_client = cls.os.compute_networks_client
         cls.compute_images_client = cls.os.compute_images_client
 
         cls.snapshots_client = cls.os.snapshots_v2_client
diff --git a/tempest/services/object_storage/account_client.py b/tempest/services/object_storage/account_client.py
index 469e58d..5a1737e 100644
--- a/tempest/services/object_storage/account_client.py
+++ b/tempest/services/object_storage/account_client.py
@@ -23,6 +23,32 @@
 
 class AccountClient(rest_client.RestClient):
 
+    def create_update_or_delete_account_metadata(
+            self,
+            create_update_metadata=None,
+            delete_metadata=None,
+            create_update_metadata_prefix='X-Account-Meta-',
+            delete_metadata_prefix='X-Remove-Account-Meta-'):
+        """Creates, Updates or deletes an account metadata entry.
+
+        Account Metadata can be created, updated or deleted based on
+        metadata header or value. For detailed info, please refer to the
+        official API reference:
+        http://developer.openstack.org/api-ref/object-storage/?expanded=create-update-or-delete-account-metadata-detail
+        """
+        headers = {}
+        if create_update_metadata:
+            for key in create_update_metadata:
+                metadata_header_name = create_update_metadata_prefix + key
+                headers[metadata_header_name] = create_update_metadata[key]
+        if delete_metadata:
+            for key in delete_metadata:
+                headers[delete_metadata_prefix + key] = delete_metadata[key]
+
+        resp, body = self.post('', headers=headers, body=None)
+        self.expected_success([200, 204], resp.status)
+        return resp, body
+
     def list_account_metadata(self):
         """HEAD on the storage URL
 
@@ -32,46 +58,6 @@
         self.expected_success(204, resp.status)
         return resp, body
 
-    def create_account_metadata(self, metadata,
-                                metadata_prefix='X-Account-Meta-'):
-        """Creates an account metadata entry."""
-        headers = {}
-        if metadata:
-            for key in metadata:
-                headers[metadata_prefix + key] = metadata[key]
-
-        resp, body = self.post('', headers=headers, body=None)
-        self.expected_success([200, 204], resp.status)
-        return resp, body
-
-    def delete_account_metadata(self, metadata,
-                                metadata_prefix='X-Remove-Account-Meta-'):
-        """Deletes an account metadata entry."""
-
-        headers = {}
-        for item in metadata:
-            headers[metadata_prefix + item] = metadata[item]
-        resp, body = self.post('', headers=headers, body=None)
-        self.expected_success(204, resp.status)
-        return resp, body
-
-    def create_and_delete_account_metadata(
-            self,
-            create_metadata=None,
-            delete_metadata=None,
-            create_metadata_prefix='X-Account-Meta-',
-            delete_metadata_prefix='X-Remove-Account-Meta-'):
-        """Creates and deletes an account metadata entry."""
-        headers = {}
-        for key in create_metadata:
-            headers[create_metadata_prefix + key] = create_metadata[key]
-        for key in delete_metadata:
-            headers[delete_metadata_prefix + key] = delete_metadata[key]
-
-        resp, body = self.post('', headers=headers, body=None)
-        self.expected_success(204, resp.status)
-        return resp, body
-
     def list_account_containers(self, params=None):
         """GET on the (base) storage URL