diff --git a/patrole_tempest_plugin/tests/unit/fixtures.py b/patrole_tempest_plugin/tests/unit/fixtures.py
index aee36fa..78e87e5 100644
--- a/patrole_tempest_plugin/tests/unit/fixtures.py
+++ b/patrole_tempest_plugin/tests/unit/fixtures.py
@@ -66,7 +66,8 @@
     def setUp(self):
         super(RbacUtilsFixture, self).setUp()
 
-        self.useFixture(ConfPatcher(rbac_test_role='member', group='patrole'))
+        self.useFixture(ConfPatcher(rbac_test_roles=['member'],
+                                    group='patrole'))
         self.useFixture(ConfPatcher(
             admin_role='admin', auth_version='v3', group='identity'))
         self.useFixture(ConfPatcher(
@@ -92,7 +93,7 @@
         mock_admin_mgr = mock.patch.object(
             clients, 'Manager', spec=clients.Manager,
             roles_v3_client=mock.Mock(), roles_client=mock.Mock()).start()
-        self.roles_v3_client = mock_admin_mgr.return_value.roles_v3_client
+        self.admin_roles_client = mock_admin_mgr.return_value.roles_v3_client
 
         self.set_roles(['admin', 'member'], [])
 
@@ -153,6 +154,6 @@
                       for role in roles_on_project]
         }
 
-        self.roles_v3_client.list_roles.return_value = available_roles
-        self.roles_v3_client.list_user_roles_on_project.return_value = (
+        self.admin_roles_client.list_roles.return_value = available_roles
+        self.admin_roles_client.list_user_roles_on_project.return_value = (
             available_project_roles)
diff --git a/patrole_tempest_plugin/tests/unit/test_policy_authority.py b/patrole_tempest_plugin/tests/unit/test_policy_authority.py
index 624c0c5..6a4d219 100644
--- a/patrole_tempest_plugin/tests/unit/test_policy_authority.py
+++ b/patrole_tempest_plugin/tests/unit/test_policy_authority.py
@@ -108,9 +108,60 @@
 
         for rule, role_list in expected.items():
             for role in role_list:
-                self.assertTrue(authority.allowed(rule, role))
+                self.assertTrue(authority.allowed(rule, [role]))
             for role in set(default_roles) - set(role_list):
-                self.assertFalse(authority.allowed(rule, role))
+                self.assertFalse(authority.allowed(rule, [role]))
+
+    @mock.patch.object(policy_authority, 'LOG', autospec=True)
+    def _test_custom_multi_roles_policy(self, *args):
+        default_roles = ['zero', 'one', 'two', 'three', 'four',
+                         'five', 'six', 'seven', 'eight', 'nine']
+
+        test_tenant_id = mock.sentinel.tenant_id
+        test_user_id = mock.sentinel.user_id
+        authority = policy_authority.PolicyAuthority(
+            test_tenant_id, test_user_id, "custom_rbac_policy")
+
+        expected = {
+            'policy_action_1': ['two', 'four', 'six', 'eight'],
+            'policy_action_2': ['one', 'three', 'five', 'seven', 'nine'],
+            'policy_action_4': ['one', 'two', 'three', 'five', 'seven'],
+            'policy_action_5': ['zero', 'one', 'two', 'three', 'four', 'five',
+                                'six', 'seven', 'eight', 'nine'],
+        }
+
+        for rule, role_list in expected.items():
+            allowed_roles_lists = [roles for roles in [
+                role_list[len(role_list) // 2:],
+                role_list[:len(role_list) // 2]] if roles]
+            for test_roles in allowed_roles_lists:
+                self.assertTrue(authority.allowed(rule, test_roles))
+
+            disallowed_roles = list(set(default_roles) - set(role_list))
+            disallowed_roles_lists = [roles for roles in [
+                disallowed_roles[len(disallowed_roles) // 2:],
+                disallowed_roles[:len(disallowed_roles) // 2]] if roles]
+            for test_roles in disallowed_roles_lists:
+                self.assertFalse(authority.allowed(rule, test_roles))
+
+    def test_empty_rbac_test_roles(self):
+        test_tenant_id = mock.sentinel.tenant_id
+        test_user_id = mock.sentinel.user_id
+        authority = policy_authority.PolicyAuthority(
+            test_tenant_id, test_user_id, "custom_rbac_policy")
+
+        disallowed_for_empty_roles = ['policy_action_1', 'policy_action_2',
+                                      'policy_action_3', 'policy_action_4',
+                                      'policy_action_6']
+
+        # Due to "policy_action_5": "rule:all_rule" / "all_rule": ""
+        allowed_for_empty_roles = ['policy_action_5']
+
+        for rule in disallowed_for_empty_roles:
+            self.assertFalse(authority.allowed(rule, []))
+
+        for rule in allowed_for_empty_roles:
+            self.assertTrue(authority.allowed(rule, []))
 
     def test_custom_policy_json(self):
         # The CONF.patrole.custom_policy_files has a path to JSON file by
@@ -122,24 +173,34 @@
             custom_policy_files=[self.conf_policy_path_yaml], group='patrole'))
         self._test_custom_policy()
 
+    def test_custom_multi_roles_policy_json(self):
+        # The CONF.patrole.custom_policy_files has a path to JSON file by
+        # default, so we don't need to use ConfPatcher here.
+        self._test_custom_multi_roles_policy()
+
+    def test_custom_multi_roles_policy_yaml(self):
+        self.useFixture(fixtures.ConfPatcher(
+            custom_policy_files=[self.conf_policy_path_yaml], group='patrole'))
+        self._test_custom_multi_roles_policy()
+
     def test_admin_policy_file_with_admin_role(self):
         test_tenant_id = mock.sentinel.tenant_id
         test_user_id = mock.sentinel.user_id
         authority = policy_authority.PolicyAuthority(
             test_tenant_id, test_user_id, "admin_rbac_policy")
 
-        role = 'admin'
+        roles = ['admin']
         allowed_rules = [
             'admin_rule', 'is_admin_rule', 'alt_admin_rule'
         ]
         disallowed_rules = ['non_admin_rule']
 
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertTrue(allowed)
 
         for rule in disallowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertFalse(allowed)
 
     def test_admin_policy_file_with_member_role(self):
@@ -148,7 +209,7 @@
         authority = policy_authority.PolicyAuthority(
             test_tenant_id, test_user_id, "admin_rbac_policy")
 
-        role = 'Member'
+        roles = ['Member']
         allowed_rules = [
             'non_admin_rule'
         ]
@@ -156,11 +217,11 @@
             'admin_rule', 'is_admin_rule', 'alt_admin_rule']
 
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertTrue(allowed)
 
         for rule in disallowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertFalse(allowed)
 
     def test_alt_admin_policy_file_with_context_is_admin(self):
@@ -169,28 +230,28 @@
         authority = policy_authority.PolicyAuthority(
             test_tenant_id, test_user_id, "alt_admin_rbac_policy")
 
-        role = 'fake_admin'
+        roles = ['fake_admin']
         allowed_rules = ['non_admin_rule']
         disallowed_rules = ['admin_rule']
 
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertTrue(allowed)
 
         for rule in disallowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertFalse(allowed)
 
-        role = 'super_admin'
+        roles = ['super_admin']
         allowed_rules = ['admin_rule']
         disallowed_rules = ['non_admin_rule']
 
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertTrue(allowed)
 
         for rule in disallowed_rules:
-            allowed = authority.allowed(rule, role)
+            allowed = authority.allowed(rule, roles)
             self.assertFalse(allowed)
 
     def test_tenant_user_policy(self):
@@ -208,17 +269,17 @@
         # Check whether Member role can perform expected actions.
         allowed_rules = ['rule1', 'rule2', 'rule3', 'rule4']
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, 'Member')
+            allowed = authority.allowed(rule, ['Member'])
             self.assertTrue(allowed)
 
         disallowed_rules = ['admin_tenant_rule', 'admin_user_rule']
         for disallowed_rule in disallowed_rules:
-            self.assertFalse(authority.allowed(disallowed_rule, 'Member'))
+            self.assertFalse(authority.allowed(disallowed_rule, ['Member']))
 
         # Check whether admin role can perform expected actions.
         allowed_rules.extend(disallowed_rules)
         for rule in allowed_rules:
-            allowed = authority.allowed(rule, 'admin')
+            allowed = authority.allowed(rule, ['admin'])
             self.assertTrue(allowed)
 
         # Check whether _try_rule is called with the correct target dictionary.
@@ -243,7 +304,7 @@
             }
 
             for rule in allowed_rules:
-                allowed = authority.allowed(rule, 'Member')
+                allowed = authority.allowed(rule, ['Member'])
                 self.assertTrue(allowed)
                 mock_try_rule.assert_called_once_with(
                     rule, expected_target, expected_access_data, mock.ANY)
@@ -292,7 +353,7 @@
             fake_rule, [self.custom_policy_file], "custom_rbac_policy")
 
         e = self.assertRaises(rbac_exceptions.RbacParsingException,
-                              authority.allowed, fake_rule, None)
+                              authority.allowed, fake_rule, [None])
         self.assertIn(expected_message, str(e))
         m_log.debug.assert_called_once_with(expected_message)
 
@@ -309,13 +370,13 @@
                mock.sentinel.error)})
 
         expected_message = (
-            'Policy action "{0}" not found in policy files: {1} or among '
+            'Policy action "[{0}]" not found in policy files: {1} or among '
             'registered policy in code defaults for {2} service.').format(
             mock.sentinel.rule, [self.custom_policy_file],
             "custom_rbac_policy")
 
         e = self.assertRaises(rbac_exceptions.RbacParsingException,
-                              authority.allowed, mock.sentinel.rule, None)
+                              authority.allowed, [mock.sentinel.rule], [None])
         self.assertIn(expected_message, str(e))
         m_log.debug.assert_called_once_with(expected_message)
 
diff --git a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
index 1a2c691..1531df1 100644
--- a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
+++ b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
@@ -47,7 +47,7 @@
         setattr(self.mock_test_args.os_primary, 'credentials', mock_creds)
 
         self.useFixture(
-            patrole_fixtures.ConfPatcher(rbac_test_role='Member',
+            patrole_fixtures.ConfPatcher(rbac_test_roles=['member'],
                                          group='patrole'))
         # Disable patrole log for unit tests.
         self.useFixture(
@@ -55,6 +55,29 @@
                                          group='patrole_log'))
 
 
+class BaseRBACMultiRoleRuleValidationTest(base.TestCase):
+
+    def setUp(self):
+        super(BaseRBACMultiRoleRuleValidationTest, self).setUp()
+        self.mock_test_args = mock.Mock(spec=test.BaseTestCase)
+        self.mock_test_args.os_primary = mock.Mock(spec=manager.Manager)
+        self.mock_test_args.rbac_utils = mock.Mock(
+            spec_set=rbac_utils.RbacUtils)
+
+        # Setup credentials for mock client manager.
+        mock_creds = mock.Mock(user_id=mock.sentinel.user_id,
+                               project_id=mock.sentinel.project_id)
+        setattr(self.mock_test_args.os_primary, 'credentials', mock_creds)
+
+        self.useFixture(
+            patrole_fixtures.ConfPatcher(
+                rbac_test_roles=['member', 'anotherrole'], group='patrole'))
+        # Disable patrole log for unit tests.
+        self.useFixture(
+            patrole_fixtures.ConfPatcher(enable_reporting=False,
+                                         group='patrole_log'))
+
+
 class RBACRuleValidationTest(BaseRBACRuleValidationTest):
     """Test suite for validating fundamental functionality for the
     ``rbac_rule_validation`` decorator.
@@ -118,8 +141,8 @@
         def test_policy(*args):
             raise exceptions.Forbidden()
 
-        test_re = ("Role Member was not allowed to perform the following "
-                   "actions: \[%s\].*" % (mock.sentinel.action))
+        test_re = ("User with roles \['member'\] was not allowed to perform "
+                   "the following actions: \[%s\].*" % (mock.sentinel.action))
         self.assertRaisesRegex(
             rbac_exceptions.RbacUnderPermissionException, test_re, test_policy,
             self.mock_test_args)
@@ -159,11 +182,10 @@
         def test_policy(*args):
             raise rbac_exceptions.RbacMalformedResponse()
 
-        test_re = ("Role Member was not allowed to perform the following "
-                   "actions: \[%s\].*" % (mock.sentinel.action))
-        self.assertRaisesRegex(
-            rbac_exceptions.RbacUnderPermissionException, test_re, test_policy,
-            self.mock_test_args)
+        test_re = ("User with roles \['member'\] was not allowed to perform "
+                   "the following actions: \[%s\]. " % (mock.sentinel.action))
+        self.assertRaisesRegex(rbac_exceptions.RbacUnderPermissionException,
+                               test_re, test_policy, self.mock_test_args)
         self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
 
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
@@ -214,8 +236,8 @@
             raise exceptions.NotFound()
 
         expected_errors = [
-            ("Role Member was not allowed to perform the following "
-             "actions: \['%s'\].*" % policy_names[0]),
+            ("User with roles \['member'\] was not allowed to perform the "
+             "following actions: \['%s'\].*" % policy_names[0]),
             None
         ]
 
@@ -348,6 +370,108 @@
             mock_log.error.reset_mock()
 
 
+class RBACMultiRoleRuleValidationTest(BaseRBACMultiRoleRuleValidationTest,
+                                      RBACRuleValidationTest):
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
+    def test_rule_validation_forbidden_negative(self, mock_authority,
+                                                mock_log):
+        """Test RbacUnderPermissionException error is thrown and have
+        permission fails.
+
+        Negative test case: if Forbidden is thrown and the user should be
+        allowed to perform the action, then the RbacUnderPermissionException
+        exception should be raised.
+        """
+        mock_authority.PolicyAuthority.return_value.allowed.return_value = True
+
+        @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action])
+        def test_policy(*args):
+            raise exceptions.Forbidden()
+
+        test_re = ("User with roles \['member', 'anotherrole'\] was not "
+                   "allowed to perform the following actions: \[%s\].*" %
+                   (mock.sentinel.action))
+        self.assertRaisesRegex(
+            rbac_exceptions.RbacUnderPermissionException, test_re, test_policy,
+            self.mock_test_args)
+        self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
+
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
+    def test_rule_validation_rbac_malformed_response_negative(
+            self, mock_authority, mock_log):
+        """Test RbacMalformedResponse error is thrown with permission fails.
+
+        Negative test case: if RbacMalformedResponse is thrown and the user is
+        allowed to perform the action, then this is an expected failure.
+        """
+        mock_authority.PolicyAuthority.return_value.allowed.return_value = True
+
+        @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action])
+        def test_policy(*args):
+            raise rbac_exceptions.RbacMalformedResponse()
+
+        test_re = ("User with roles \['member', 'anotherrole'\] was not "
+                   "allowed to perform the following actions: \[%s\]. " %
+                   (mock.sentinel.action))
+        self.assertRaisesRegex(rbac_exceptions.RbacUnderPermissionException,
+                               test_re, test_policy, self.mock_test_args)
+        self.assertRegex(mock_log.error.mock_calls[0][1][0], test_re)
+
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
+    def test_expect_not_found_and_raise_not_found(self, mock_authority,
+                                                  mock_log):
+        """Test that expecting 404 and getting 404 works for all scenarios.
+
+        Tests the following scenarios:
+        1) Test no permission and 404 is expected and 404 is thrown succeeds.
+        2) Test have permission and 404 is expected and 404 is thrown fails.
+
+        In both cases, a LOG.warning is called with the "irregular message"
+        that signals to user that a 404 was expected and caught.
+        """
+        policy_names = ['foo:bar']
+
+        @rbac_rv.action(mock.sentinel.service, rules=policy_names,
+                        expected_error_codes=[404])
+        def test_policy(*args):
+            raise exceptions.NotFound()
+
+        expected_errors = [
+            ("User with roles \['member', 'anotherrole'\] was not allowed to "
+             "perform the following actions: \['%s'\].*" % policy_names[0]),
+            None
+        ]
+
+        for pos, allowed in enumerate([True, False]):
+            mock_authority.PolicyAuthority.return_value.allowed\
+                .return_value = allowed
+
+            error_re = expected_errors[pos]
+
+            if error_re:
+                self.assertRaisesRegex(
+                    rbac_exceptions.RbacUnderPermissionException, error_re,
+                    test_policy, self.mock_test_args)
+                self.assertRegex(mock_log.error.mock_calls[0][1][0], error_re)
+            else:
+                test_policy(self.mock_test_args)
+                mock_log.error.assert_not_called()
+
+            mock_log.warning.assert_called_with(
+                "NotFound exception was caught for test %s. Expected policies "
+                "which may have caused the error: %s. The service %s throws a "
+                "404 instead of a 403, which is irregular",
+                test_policy.__name__,
+                ', '.join(policy_names),
+                mock.sentinel.service)
+
+            mock_log.warning.reset_mock()
+            mock_log.error.reset_mock()
+
+
 class RBACRuleValidationLoggingTest(BaseRBACRuleValidationTest):
     """Test class for validating the RBAC log, dedicated to just logging
     Patrole RBAC validation work flows.
@@ -422,7 +546,7 @@
         policy_authority = mock_authority.PolicyAuthority.return_value
         policy_authority.allowed.assert_called_with(
             mock.sentinel.action,
-            CONF.patrole.rbac_test_role)
+            CONF.patrole.rbac_test_roles)
 
         mock_log.error.assert_not_called()
 
@@ -454,18 +578,23 @@
         policy_authority = mock_authority.PolicyAuthority.return_value
         policy_authority.allowed.assert_called_with(
             "foo",
-            CONF.patrole.rbac_test_role)
+            CONF.patrole.rbac_test_roles)
         policy_authority.allowed.reset_mock()
 
         test_bar_policy(self.mock_test_args)
         policy_authority = mock_authority.PolicyAuthority.return_value
         policy_authority.allowed.assert_called_with(
             "qux",
-            CONF.patrole.rbac_test_role)
+            CONF.patrole.rbac_test_roles)
 
         mock_log.error.assert_not_called()
 
 
+class RBACMultiRoleRuleValidationLoggingTest(
+    BaseRBACMultiRoleRuleValidationTest, RBACRuleValidationLoggingTest):
+    pass
+
+
 class RBACRuleValidationNegativeTest(BaseRBACRuleValidationTest):
 
     def setUp(self):
@@ -488,6 +617,11 @@
                           test_policy, self.mock_test_args)
 
 
+class RBACMultiRoleRuleValidationNegativeTest(
+    BaseRBACMultiRoleRuleValidationTest, RBACRuleValidationNegativeTest):
+    pass
+
+
 class RBACRuleValidationTestMultiPolicy(BaseRBACRuleValidationTest):
     """Test suite for validating multi-policy support for the
     ``rbac_rule_validation`` decorator.
@@ -502,7 +636,7 @@
     def _assert_policy_authority_called_with(self, rules, mock_authority):
         m_authority = mock_authority.PolicyAuthority.return_value
         m_authority.allowed.assert_has_calls([
-            mock.call(rule, CONF.patrole.rbac_test_role) for rule in rules
+            mock.call(rule, CONF.patrole.rbac_test_roles) for rule in rules
         ])
 
     @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
@@ -614,10 +748,10 @@
         mock_authority.PolicyAuthority.return_value.allowed\
             .return_value = True
 
-        error_re = ("Role Member was not allowed to perform the following "
-                    "actions: %s. Expected allowed actions: %s. Expected "
-                    "disallowed actions: []." % (rules, rules)).replace(
-                        '[', '\[').replace(']', '\]')
+        error_re = ("User with roles ['member'] was not allowed to perform "
+                    "the following actions: %s. Expected allowed actions: %s. "
+                    "Expected disallowed actions: []." %
+                    (rules, rules)).replace('[', '\[').replace(']', '\]')
         self.assertRaisesRegex(
             rbac_exceptions.RbacUnderPermissionException, error_re,
             test_policy, self.mock_test_args)
@@ -739,6 +873,39 @@
         self.assertRaisesRegex(ValueError, error_re, _do_test, None, [404])
 
 
+class RBACMultiRoleRuleValidationTestMultiPolicy(
+    BaseRBACMultiRoleRuleValidationTest, RBACRuleValidationTestMultiPolicy):
+    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
+    @mock.patch.object(rbac_rv, 'policy_authority', autospec=True)
+    def test_rule_validation_multi_policy_forbidden_failure(
+            self, mock_authority, mock_log):
+        """Test that when the expected result is authorized and the test
+        fails (with a Forbidden error code) that the overall evaluation
+        results in a RbacUnderPermissionException getting raised.
+        """
+
+        # NOTE: Avoid mock.sentinel here due to weird sorting with them.
+        rules = ['action1', 'action2', 'action3']
+
+        @rbac_rv.action(mock.sentinel.service, rules=rules,
+                        expected_error_codes=[403, 403, 403])
+        def test_policy(*args):
+            raise exceptions.Forbidden()
+
+        mock_authority.PolicyAuthority.return_value.allowed\
+            .return_value = True
+
+        error_re = ("User with roles ['member', 'anotherrole'] was not "
+                    "allowed to perform the following actions: %s. Expected "
+                    "allowed actions: %s. Expected disallowed actions: []." %
+                    (rules, rules)).replace('[', '\[').replace(']', '\]')
+        self.assertRaisesRegex(
+            rbac_exceptions.RbacUnderPermissionException, error_re,
+            test_policy, self.mock_test_args)
+        self.assertRegex(mock_log.error.mock_calls[0][1][0], error_re)
+        self._assert_policy_authority_called_with(rules, mock_authority)
+
+
 class RBACOverrideRoleValidationTest(BaseRBACRuleValidationTest):
     """Class for validating that untimely exceptions (outside
     ``override_role`` is called) result in test failures.
diff --git a/patrole_tempest_plugin/tests/unit/test_rbac_utils.py b/patrole_tempest_plugin/tests/unit/test_rbac_utils.py
index 5132079..bd13e34 100644
--- a/patrole_tempest_plugin/tests/unit/test_rbac_utils.py
+++ b/patrole_tempest_plugin/tests/unit/test_rbac_utils.py
@@ -52,7 +52,7 @@
         self.rbac_utils.override_role()
 
         mock_test_obj = self.rbac_utils.mock_test_obj
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
         mock_time = self.rbac_utils.mock_time
 
         roles_client.create_user_role_on_project.assert_called_once_with(
@@ -67,7 +67,7 @@
         self.rbac_utils.set_roles(['admin', 'member'], 'admin')
         self.rbac_utils.override_role()
 
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
         mock_time = self.rbac_utils.mock_time
 
         roles_client.create_user_role_on_project.assert_not_called()
@@ -77,7 +77,7 @@
         self.rbac_utils.override_role(True)
 
         mock_test_obj = self.rbac_utils.mock_test_obj
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
         mock_time = self.rbac_utils.mock_time
 
         roles_client.create_user_role_on_project.assert_has_calls([
@@ -96,7 +96,7 @@
         self.rbac_utils.set_roles(['admin', 'member'], 'member')
         self.rbac_utils.override_role(True)
 
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
         mock_time = self.rbac_utils.mock_time
 
         roles_client.create_user_role_on_project.assert_has_calls([
@@ -109,7 +109,7 @@
         self.rbac_utils.override_role(True, False)
 
         mock_test_obj = self.rbac_utils.mock_test_obj
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
         mock_time = self.rbac_utils.mock_time
 
         roles_client.create_user_role_on_project.assert_has_calls([
@@ -133,7 +133,7 @@
         self.rbac_utils.set_roles(['admin', 'member'], ['member', 'random'])
         self.rbac_utils.override_role()
 
-        roles_client = self.rbac_utils.roles_v3_client
+        roles_client = self.rbac_utils.admin_roles_client
 
         roles_client.list_user_roles_on_project.assert_called_once_with(
             self.rbac_utils.PROJECT_ID, self.rbac_utils.USER_ID)
@@ -169,7 +169,8 @@
         mock_override_role.assert_called_once_with(_rbac_utils, test_obj,
                                                    False)
 
-    @mock.patch.object(rbac_utils.RbacUtils, '_override_role', autospec=True)
+    @mock.patch.object(rbac_utils.RbacUtils, '_override_role',
+                       autospec=True)
     def test_override_role_context_manager_simulate_fail(self,
                                                          mock_override_role):
         """Validate that expected override_role calls are made when switching
diff --git a/patrole_tempest_plugin/tests/unit/test_requirements_authority.py b/patrole_tempest_plugin/tests/unit/test_requirements_authority.py
index 1fb9636..4b75ef5 100644
--- a/patrole_tempest_plugin/tests/unit/test_requirements_authority.py
+++ b/patrole_tempest_plugin/tests/unit/test_requirements_authority.py
@@ -38,11 +38,11 @@
     def test_auth_allowed_empty_roles(self):
         self.rbac_auth.roles_dict = None
         self.assertRaises(exceptions.InvalidConfiguration,
-                          self.rbac_auth.allowed, "", "")
+                          self.rbac_auth.allowed, "", [""])
 
     def test_auth_allowed_role_in_api(self):
         self.rbac_auth.roles_dict = {'api': ['_member_']}
-        self.assertTrue(self.rbac_auth.allowed("api", "_member_"))
+        self.assertTrue(self.rbac_auth.allowed("api", ["_member_"]))
 
     def test_auth_allowed_role_not_in_api(self):
         self.rbac_auth.roles_dict = {'api': ['_member_']}
@@ -64,7 +64,8 @@
         self.rbac_auth.roles_dict = req_auth.RequirementsParser.parse("Test")
 
         self.assertEqual(self.expected_result, self.rbac_auth.roles_dict)
-        self.assertTrue(self.rbac_auth.allowed("test:create2", "test_member"))
+        self.assertTrue(
+            self.rbac_auth.allowed("test:create2", ["test_member"]))
 
     def test_parser_role_not_in_api(self):
         req_auth.RequirementsParser.Inner._rbac_map = \
@@ -82,4 +83,4 @@
 
         self.assertIsNone(self.rbac_auth.roles_dict)
         self.assertRaises(exceptions.InvalidConfiguration,
-                          self.rbac_auth.allowed, "", "")
+                          self.rbac_auth.allowed, "", [""])