diff --git a/tempest/api/object_storage/base.py b/tempest/api/object_storage/base.py
index ccc0067..a143659 100644
--- a/tempest/api/object_storage/base.py
+++ b/tempest/api/object_storage/base.py
@@ -69,10 +69,11 @@
         cls.object_client_alt.auth_provider.clear_auth()
         cls.container_client_alt.auth_provider.clear_auth()
 
-        cls.data = base.DataGenerator(cls.identity_admin_client)
+        cls.data = SwiftDataGenerator(cls.identity_admin_client)
 
     @classmethod
     def tearDownClass(cls):
+        cls.data.teardown_all()
         cls.isolated_creds.clear_isolated_creds()
         super(BaseObjectTest, cls).tearDownClass()
 
@@ -116,3 +117,28 @@
         self.assertThat(resp, custom_matchers.ExistsAllResponseHeaders(
                         target, method))
         self.assertThat(resp, custom_matchers.AreAllWellFormatted())
+
+
+class SwiftDataGenerator(base.DataGenerator):
+
+    def setup_test_user(self, reseller=False):
+        super(SwiftDataGenerator, self).setup_test_user()
+        if reseller:
+            role_name = CONF.object_storage.reseller_admin_role
+        else:
+            role_name = CONF.object_storage.operator_role
+        role_id = self._get_role_id(role_name)
+        self._assign_role(role_id)
+
+    def _get_role_id(self, role_name):
+        try:
+            _, roles = self.client.list_roles()
+            return next(r['id'] for r in roles if r['name'] == role_name)
+        except StopIteration:
+            msg = "Role name '%s' is not found" % role_name
+            raise exceptions.NotFound(msg)
+
+    def _assign_role(self, role_id):
+        self.client.assign_user_role(self.tenant['id'],
+                                     self.user['id'],
+                                     role_id)
diff --git a/tempest/api/object_storage/test_account_quotas.py b/tempest/api/object_storage/test_account_quotas.py
index 19e3068..c1eb897 100644
--- a/tempest/api/object_storage/test_account_quotas.py
+++ b/tempest/api/object_storage/test_account_quotas.py
@@ -18,7 +18,6 @@
 from tempest import clients
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest import exceptions
 from tempest import test
 
 CONF = config.CONF
@@ -33,32 +32,10 @@
         cls.container_name = data_utils.rand_name(name="TestContainer")
         cls.container_client.create_container(cls.container_name)
 
-        cls.data.setup_test_user()
+        cls.data.setup_test_user(reseller=True)
 
         cls.os_reselleradmin = clients.Manager(cls.data.test_credentials)
 
-        # Retrieve the ResellerAdmin role id
-        reseller_role_id = None
-        try:
-            _, roles = cls.os_admin.identity_client.list_roles()
-            reseller_role_id = next(r['id'] for r in roles if r['name']
-                                    == CONF.object_storage.reseller_admin_role)
-        except StopIteration:
-            msg = "No ResellerAdmin role found"
-            raise exceptions.NotFound(msg)
-
-        # Retrieve the ResellerAdmin user id
-        reseller_user_id = cls.data.test_credentials.user_id
-
-        # Retrieve the ResellerAdmin tenant id
-        reseller_tenant_id = cls.data.test_credentials.tenant_id
-
-        # Assign the newly created user the appropriate ResellerAdmin role
-        cls.os_admin.identity_client.assign_user_role(
-            reseller_tenant_id,
-            reseller_user_id,
-            reseller_role_id)
-
         # Retrieve a ResellerAdmin auth data and use it to set a quota
         # on the client's account
         cls.reselleradmin_auth_data = \
@@ -97,7 +74,6 @@
     def tearDownClass(cls):
         if hasattr(cls, "container_name"):
             cls.delete_containers([cls.container_name])
-        cls.data.teardown_all()
         super(AccountQuotasTest, cls).tearDownClass()
 
     @test.attr(type="smoke")
diff --git a/tempest/api/object_storage/test_account_quotas_negative.py b/tempest/api/object_storage/test_account_quotas_negative.py
index 6afd381..7324c2e 100644
--- a/tempest/api/object_storage/test_account_quotas_negative.py
+++ b/tempest/api/object_storage/test_account_quotas_negative.py
@@ -33,32 +33,10 @@
         cls.container_name = data_utils.rand_name(name="TestContainer")
         cls.container_client.create_container(cls.container_name)
 
-        cls.data.setup_test_user()
+        cls.data.setup_test_user(reseller=True)
 
         cls.os_reselleradmin = clients.Manager(cls.data.test_credentials)
 
-        # Retrieve the ResellerAdmin role id
-        reseller_role_id = None
-        try:
-            _, roles = cls.os_admin.identity_client.list_roles()
-            reseller_role_id = next(r['id'] for r in roles if r['name']
-                                    == CONF.object_storage.reseller_admin_role)
-        except StopIteration:
-            msg = "No ResellerAdmin role found"
-            raise exceptions.NotFound(msg)
-
-        # Retrieve the ResellerAdmin tenant id
-        reseller_user_id = cls.data.test_credentials.user_id
-
-        # Retrieve the ResellerAdmin tenant id
-        reseller_tenant_id = cls.data.test_credentials.tenant_id
-
-        # Assign the newly created user the appropriate ResellerAdmin role
-        cls.os_admin.identity_client.assign_user_role(
-            reseller_tenant_id,
-            reseller_user_id,
-            reseller_role_id)
-
         # Retrieve a ResellerAdmin auth data and use it to set a quota
         # on the client's account
         cls.reselleradmin_auth_data = \
@@ -96,7 +74,6 @@
     def tearDownClass(cls):
         if hasattr(cls, "container_name"):
             cls.delete_containers([cls.container_name])
-        cls.data.teardown_all()
         super(AccountQuotasNegativeTest, cls).tearDownClass()
 
     @test.attr(type=["negative", "smoke"])
diff --git a/tempest/api/object_storage/test_account_services.py b/tempest/api/object_storage/test_account_services.py
index d615374..e99dc65 100644
--- a/tempest/api/object_storage/test_account_services.py
+++ b/tempest/api/object_storage/test_account_services.py
@@ -22,7 +22,6 @@
 from tempest.common import custom_matchers
 from tempest.common.utils import data_utils
 from tempest import config
-from tempest import exceptions
 from tempest import test
 
 CONF = config.CONF
@@ -45,7 +44,6 @@
     @classmethod
     def tearDownClass(cls):
         cls.delete_containers(cls.containers)
-        cls.data.teardown_all()
         super(AccountTest, cls).tearDownClass()
 
     @test.attr(type='smoke')
@@ -66,35 +64,7 @@
         # the base user of this instance.
         self.data.setup_test_user()
 
-        os_test_user = clients.Manager(
-            self.data.test_credentials)
-
-        # Retrieve the id of an operator role of object storage
-        test_role_id = None
-        swift_role = CONF.object_storage.operator_role
-        try:
-            _, roles = self.os_admin.identity_client.list_roles()
-            test_role_id = next(r['id'] for r in roles if r['name']
-                                == swift_role)
-        except StopIteration:
-            msg = "%s role found" % swift_role
-            raise exceptions.NotFound(msg)
-
-        # Retrieve the test_user id
-        _, users = self.os_admin.identity_client.get_users()
-        test_user_id = next(usr['id'] for usr in users if usr['name']
-                            == self.data.test_user)
-
-        # Retrieve the test_tenant id
-        _, tenants = self.os_admin.identity_client.list_tenants()
-        test_tenant_id = next(tnt['id'] for tnt in tenants if tnt['name']
-                              == self.data.test_tenant)
-
-        # Assign the newly created user the appropriate operator role
-        self.os_admin.identity_client.assign_user_role(
-            test_tenant_id,
-            test_user_id,
-            test_role_id)
+        os_test_user = clients.Manager(self.data.test_credentials)
 
         resp, container_list = \
             os_test_user.account_client.list_account_containers()
diff --git a/tempest/api/object_storage/test_account_services_negative.py b/tempest/api/object_storage/test_account_services_negative.py
index 490672d..e4c46e2 100644
--- a/tempest/api/object_storage/test_account_services_negative.py
+++ b/tempest/api/object_storage/test_account_services_negative.py
@@ -47,5 +47,3 @@
         self.assertRaises(exceptions.Unauthorized,
                           self.custom_account_client.list_account_containers,
                           params=params)
-        # delete the user which was created
-        self.data.teardown_all()
diff --git a/tempest/api/object_storage/test_container_acl.py b/tempest/api/object_storage/test_container_acl.py
index fc51504..a7d45be 100644
--- a/tempest/api/object_storage/test_container_acl.py
+++ b/tempest/api/object_storage/test_container_acl.py
@@ -27,11 +27,6 @@
         test_os = clients.Manager(cls.data.test_credentials)
         cls.test_auth_data = test_os.auth_provider.auth_data
 
-    @classmethod
-    def tearDownClass(cls):
-        cls.data.teardown_all()
-        super(ObjectTestACLs, cls).tearDownClass()
-
     def setUp(self):
         super(ObjectTestACLs, self).setUp()
         self.container_name = data_utils.rand_name(name='TestContainer')
diff --git a/tempest/api/object_storage/test_container_acl_negative.py b/tempest/api/object_storage/test_container_acl_negative.py
index ca53876..1a21ecc 100644
--- a/tempest/api/object_storage/test_container_acl_negative.py
+++ b/tempest/api/object_storage/test_container_acl_negative.py
@@ -29,11 +29,6 @@
         test_os = clients.Manager(cls.data.test_credentials)
         cls.test_auth_data = test_os.auth_provider.auth_data
 
-    @classmethod
-    def tearDownClass(cls):
-        cls.data.teardown_all()
-        super(ObjectACLsNegativeTest, cls).tearDownClass()
-
     def setUp(self):
         super(ObjectACLsNegativeTest, self).setUp()
         self.container_name = data_utils.rand_name(name='TestContainer')
diff --git a/tempest/api/object_storage/test_container_staticweb.py b/tempest/api/object_storage/test_container_staticweb.py
index 581c6d9..28bde24 100644
--- a/tempest/api/object_storage/test_container_staticweb.py
+++ b/tempest/api/object_storage/test_container_staticweb.py
@@ -48,7 +48,6 @@
     def tearDownClass(cls):
         if hasattr(cls, "container_name"):
             cls.delete_containers([cls.container_name])
-        cls.data.teardown_all()
         super(StaticWebTest, cls).tearDownClass()
 
     @test.requires_ext(extension='staticweb', service='object')
diff --git a/tempest/api/object_storage/test_crossdomain.py b/tempest/api/object_storage/test_crossdomain.py
index d1541b9..ad7e068 100644
--- a/tempest/api/object_storage/test_crossdomain.py
+++ b/tempest/api/object_storage/test_crossdomain.py
@@ -15,7 +15,6 @@
 # under the License.
 
 from tempest.api.object_storage import base
-from tempest import clients
 from tempest.common import custom_matchers
 from tempest import test
 
@@ -25,11 +24,6 @@
     @classmethod
     def setUpClass(cls):
         super(CrossdomainTest, cls).setUpClass()
-        # creates a test user. The test user will set its base_url to the Swift
-        # endpoint and test the healthcheck feature.
-        cls.data.setup_test_user()
-
-        cls.os_test_user = clients.Manager(cls.data.test_credentials)
 
         cls.xml_start = '<?xml version="1.0"?>\n' \
                         '<!DOCTYPE cross-domain-policy SYSTEM ' \
@@ -38,29 +32,16 @@
 
         cls.xml_end = "</cross-domain-policy>"
 
-    @classmethod
-    def tearDownClass(cls):
-        cls.data.teardown_all()
-        super(CrossdomainTest, cls).tearDownClass()
-
     def setUp(self):
         super(CrossdomainTest, self).setUp()
 
-        client = self.os_test_user.account_client
         # Turning http://.../v1/foobar into http://.../
-        client.skip_path()
-
-    def tearDown(self):
-        # clear the base_url for subsequent requests
-        self.os_test_user.account_client.reset_path()
-
-        super(CrossdomainTest, self).tearDown()
+        self.account_client.skip_path()
 
     @test.attr('gate')
     @test.requires_ext(extension='crossdomain', service='object')
     def test_get_crossdomain_policy(self):
-        resp, body = self.os_test_user.account_client.get("crossdomain.xml",
-                                                          {})
+        resp, body = self.account_client.get("crossdomain.xml", {})
 
         self.assertIn(int(resp['status']), test.HTTP_SUCCESS)
         self.assertTrue(body.startswith(self.xml_start) and
diff --git a/tempest/api/object_storage/test_object_formpost.py b/tempest/api/object_storage/test_object_formpost.py
index dc5585e..a0fb708 100644
--- a/tempest/api/object_storage/test_object_formpost.py
+++ b/tempest/api/object_storage/test_object_formpost.py
@@ -59,7 +59,6 @@
     def tearDownClass(cls):
         cls.account_client.delete_account_metadata(metadata=cls.metadata)
         cls.delete_containers(cls.containers)
-        cls.data.teardown_all()
         super(ObjectFormPostTest, cls).tearDownClass()
 
     def get_multipart_form(self, expires=600):
diff --git a/tempest/api/object_storage/test_object_formpost_negative.py b/tempest/api/object_storage/test_object_formpost_negative.py
index 878bf6d..103bc8e 100644
--- a/tempest/api/object_storage/test_object_formpost_negative.py
+++ b/tempest/api/object_storage/test_object_formpost_negative.py
@@ -59,7 +59,6 @@
     def tearDownClass(cls):
         cls.account_client.delete_account_metadata(metadata=cls.metadata)
         cls.delete_containers(cls.containers)
-        cls.data.teardown_all()
         super(ObjectFormPostNegativeTest, cls).tearDownClass()
 
     def get_multipart_form(self, expires=600):
diff --git a/tempest/api/object_storage/test_object_temp_url.py b/tempest/api/object_storage/test_object_temp_url.py
index c597255..fdc83bd 100644
--- a/tempest/api/object_storage/test_object_temp_url.py
+++ b/tempest/api/object_storage/test_object_temp_url.py
@@ -59,8 +59,6 @@
 
         cls.delete_containers(cls.containers)
 
-        # delete the user setup created
-        cls.data.teardown_all()
         super(ObjectTempUrlTest, cls).tearDownClass()
 
     def setUp(self):
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 7d26433..fda6861 100644
--- a/tempest/api/object_storage/test_object_temp_url_negative.py
+++ b/tempest/api/object_storage/test_object_temp_url_negative.py
@@ -53,8 +53,6 @@
 
         cls.delete_containers(cls.containers)
 
-        # delete the user setup created
-        cls.data.teardown_all()
         super(ObjectTempUrlNegativeTest, cls).tearDownClass()
 
     def setUp(self):