diff --git a/patrole_tempest_plugin/rbac_rule_validation.py b/patrole_tempest_plugin/rbac_rule_validation.py
index d3b057c..0cb6f78 100644
--- a/patrole_tempest_plugin/rbac_rule_validation.py
+++ b/patrole_tempest_plugin/rbac_rule_validation.py
@@ -17,7 +17,6 @@
 import logging
 import sys
 
-from oslo_log import versionutils
 from oslo_utils import excutils
 import six
 
@@ -39,9 +38,7 @@
 
 
 def action(service,
-           rule='',
            rules=None,
-           expected_error_code=_DEFAULT_ERROR_CODE,
            expected_error_codes=None,
            extra_target_data=None):
     """A decorator for verifying OpenStack policy enforcement.
@@ -75,11 +72,8 @@
     As such, negative and positive testing can be applied using this decorator.
 
     :param str service: An OpenStack service. Examples: "nova" or "neutron".
-    :param rule: (DEPRECATED) A policy action defined in a policy.json file
-        or in code. Also accepts a callable that returns a policy action.
-    :type rule: str or callable
-    :param rules: A list of policy actions defined in a policy.json file
-        or in code. The rules are logical-ANDed together to derive the expected
+    :param list rules: A list of policy actions defined in a policy file or in
+        code. The rules are logical-ANDed together to derive the expected
         result. Also accepts list of callables that return a policy action.
 
         .. note::
@@ -87,16 +81,6 @@
             Patrole currently only supports custom JSON policy files.
 
     :type rules: list[str] or list[callable]
-    :param int expected_error_code: (DEPRECATED) Overrides default value of 403
-        (Forbidden) with endpoint-specific error code. Currently only supports
-        403 and 404. Support for 404 is needed because some services, like
-        Neutron, intentionally throw a 404 for security reasons.
-
-        .. warning::
-
-            A 404 should not be provided *unless* the endpoint masks a
-            ``Forbidden`` exception as a ``NotFound`` exception.
-
     :param list expected_error_codes: When the ``rules`` list parameter is
         used, then this list indicates the expected error code to use if one
         of the rules does not allow the role being tested. This list must
@@ -117,6 +101,12 @@
 
         If it is not passed, then it is defaulted to 403.
 
+        .. warning::
+
+            A 404 should not be provided *unless* the endpoint masks a
+            ``Forbidden`` exception as a ``NotFound`` exception.
+
+    :type expected_error_codes: list[int]
     :param dict extra_target_data: Dictionary, keyed with ``oslo.policy``
         generic check names, whose values are string literals that reference
         nested ``tempest.test.BaseTestCase`` attributes. Used by
@@ -137,7 +127,8 @@
     Examples::
 
         @rbac_rule_validation.action(
-            service="nova", rule="os_compute_api:os-agents")
+            service="nova",
+            rules=["os_compute_api:os-agents"])
         def test_list_agents_rbac(self):
             # The call to `override_role` is mandatory.
             with self.rbac_utils.override_role(self):
@@ -147,8 +138,7 @@
     if extra_target_data is None:
         extra_target_data = {}
 
-    rules, expected_error_codes = _prepare_multi_policy(rule, rules,
-                                                        expected_error_code,
+    rules, expected_error_codes = _prepare_multi_policy(rules,
                                                         expected_error_codes)
 
     def decorator(test_func):
@@ -172,7 +162,6 @@
                     disallowed_rules.append(rule)
                 allowed = allowed and _allowed
 
-            exp_error_code = expected_error_code
             if disallowed_rules:
                 # Choose the first disallowed rule and expect the error
                 # code corresponding to it.
@@ -181,6 +170,8 @@
                 LOG.debug("%s: Expecting %d to be raised for policy name: %s",
                           test_func.__name__, exp_error_code,
                           disallowed_rules[0])
+            else:
+                exp_error_code = expected_error_codes[0]
 
             expected_exception, irregular_msg = _get_exception_type(
                 exp_error_code)
@@ -272,7 +263,7 @@
     return decorator
 
 
-def _prepare_multi_policy(rule, rules, exp_error_code, exp_error_codes):
+def _prepare_multi_policy(rules, exp_error_codes):
     if exp_error_codes:
         if not rules:
             msg = ("The `rules` list must be provided if using the "
@@ -282,34 +273,15 @@
             msg = ("The `expected_error_codes` list is not the same length "
                    "as the `rules` list.")
             raise ValueError(msg)
-        if exp_error_code:
-            deprecation_msg = (
-                "The `exp_error_code` argument has been deprecated in favor "
-                "of `exp_error_codes` and will be removed in a future "
-                "version.")
-            versionutils.report_deprecated_feature(LOG, deprecation_msg)
-            LOG.debug("The `exp_error_codes` argument will be used instead of "
-                      "`exp_error_code`.")
         if not isinstance(exp_error_codes, (tuple, list)):
             exp_error_codes = [exp_error_codes]
     else:
         exp_error_codes = []
-        if exp_error_code:
-            exp_error_codes.append(exp_error_code)
 
     if rules is None:
         rules = []
     elif not isinstance(rules, (tuple, list)):
         rules = [rules]
-    if rule:
-        deprecation_msg = (
-            "The `rule` argument has been deprecated in favor of `rules` "
-            "and will be removed in a future version.")
-        versionutils.report_deprecated_feature(LOG, deprecation_msg)
-        if rules:
-            LOG.debug("The `rules` argument will be used instead of `rule`.")
-        else:
-            rules.append(rule)
 
     # Fill in the exp_error_codes if needed. This is needed for the scenarios
     # where no exp_error_codes array is provided, so the error codes must be
diff --git a/patrole_tempest_plugin/rbac_utils.py b/patrole_tempest_plugin/rbac_utils.py
index 366e033..6db2199 100644
--- a/patrole_tempest_plugin/rbac_utils.py
+++ b/patrole_tempest_plugin/rbac_utils.py
@@ -83,7 +83,7 @@
         Example::
 
             @rbac_rule_validation.action(service='test',
-                                         rule='a:test:rule')
+                                         rules=['a:test:rule'])
             def test_foo(self):
                 # Allocate test-level resources here.
                 with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_agents_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_agents_rbac.py
index a046f96..617aa5b 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_agents_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_agents_rbac.py
@@ -42,7 +42,7 @@
         return kwargs
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-agents")
+        service="nova", rules=["os_compute_api:os-agents"])
     @decorators.idempotent_id('d1bc6d97-07f5-4f45-ac29-1c619a6a7e27')
     def test_list_agents_rbac(self):
         with self.rbac_utils.override_role(self):
@@ -50,7 +50,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-agents")
+        rules=["os_compute_api:os-agents"])
     @decorators.idempotent_id('77d6cae4-1ced-47f7-af2e-3d6a45958fd6')
     def test_create_agent(self):
         params = {'hypervisor': 'kvm', 'os': 'win', 'architecture': 'x86',
@@ -63,7 +63,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-agents")
+        rules=["os_compute_api:os-agents"])
     @decorators.idempotent_id('b22f2681-9ffb-439b-b240-dae503e41020')
     def test_update_agent(self):
         params = self._param_helper(
@@ -84,7 +84,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-agents")
+        rules=["os_compute_api:os-agents"])
     @decorators.idempotent_id('c5042af8-0682-43b0-abc4-bf33349e23dd')
     def test_delete_agent(self):
         params = self._param_helper(
diff --git a/patrole_tempest_plugin/tests/api/compute/test_aggregates_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_aggregates_rbac.py
index b7cd392..dea8bb9 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_aggregates_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_aggregates_rbac.py
@@ -81,14 +81,14 @@
                         host=self.host)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:create")
+        service="nova", rules=["os_compute_api:os-aggregates:create"])
     @decorators.idempotent_id('ba754393-896e-434a-9704-452ff4a84f3f')
     def test_create_aggregate_rbac(self):
         with self.rbac_utils.override_role(self):
             self._create_aggregate()
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:show")
+        service="nova", rules=["os_compute_api:os-aggregates:show"])
     @decorators.idempotent_id('8fb0b749-b120-4727-b3fb-bcfa3fa6f55b')
     def test_show_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
@@ -96,14 +96,14 @@
             self.aggregates_client.show_aggregate(aggregate_id)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:index")
+        service="nova", rules=["os_compute_api:os-aggregates:index"])
     @decorators.idempotent_id('146284da-5dd6-4c97-b598-42b480f014c6')
     def test_list_aggregate_rbac(self):
         with self.rbac_utils.override_role(self):
             self.aggregates_client.list_aggregates()
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:update")
+        service="nova", rules=["os_compute_api:os-aggregates:update"])
     @decorators.idempotent_id('c94e0d69-99b6-477e-b301-2cd0e9d0ad81')
     def test_update_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
@@ -113,7 +113,7 @@
                                                     name=new_name)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:delete")
+        service="nova", rules=["os_compute_api:os-aggregates:delete"])
     @decorators.idempotent_id('5a50c5a6-0f12-4405-a1ce-2288ae895ea6')
     def test_delete_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
@@ -121,7 +121,7 @@
             self.aggregates_client.delete_aggregate(aggregate_id)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:add_host")
+        service="nova", rules=["os_compute_api:os-aggregates:add_host"])
     @decorators.idempotent_id('97e6e9df-5291-4faa-8147-755b2d1f1ce2')
     def test_add_host_to_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
@@ -129,7 +129,7 @@
             self._add_host_to_aggregate(aggregate_id)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:remove_host")
+        service="nova", rules=["os_compute_api:os-aggregates:remove_host"])
     @decorators.idempotent_id('5b035a25-75d2-4d72-b4d6-0f0337335628')
     def test_remove_host_from_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
@@ -138,7 +138,7 @@
             self.aggregates_client.remove_host(aggregate_id, host=self.host)
 
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-aggregates:set_metadata")
+        service="nova", rules=["os_compute_api:os-aggregates:set_metadata"])
     @decorators.idempotent_id('ed6f3849-065c-4ae9-a81e-6ad7ed0d3d9d')
     def test_set_metadata_on_aggregate_rbac(self):
         aggregate_id = self._create_aggregate()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_availability_zone_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_availability_zone_rbac.py
index 66dce5c..d8b165c 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_availability_zone_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_availability_zone_rbac.py
@@ -28,15 +28,17 @@
                    "enabled." % cls.__name__)
             raise cls.skipException(msg)
 
-    @rbac_rule_validation.action(service="nova", rule="os_compute_api:"
-                                 "os-availability-zone:list")
+    @rbac_rule_validation.action(
+        service="nova",
+        rules=["os_compute_api:os-availability-zone:list"])
     @decorators.idempotent_id('cd34e7ea-d26e-4fa3-a8d0-f8883726ce3d')
     def test_get_availability_zone_list_rbac(self):
         with self.rbac_utils.override_role(self):
             self.availability_zone_client.list_availability_zones()
 
-    @rbac_rule_validation.action(service="nova", rule="os_compute_api:"
-                                 "os-availability-zone:detail")
+    @rbac_rule_validation.action(
+        service="nova",
+        rules=["os_compute_api:os-availability-zone:detail"])
     @decorators.idempotent_id('2f61c191-6ece-4f21-b487-39d749e3d38e')
     def test_get_availability_zone_list_detail_rbac(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_fixed_ips_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_fixed_ips_rbac.py
index f426cf3..25f7d5f 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_fixed_ips_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_fixed_ips_rbac.py
@@ -56,7 +56,7 @@
     @decorators.idempotent_id('c89391f7-4844-4a70-a116-37c1336efb99')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-fixed-ips")
+        rules=["os_compute_api:os-fixed-ips"])
     def test_show_fixed_ip_details(self):
         with self.rbac_utils.override_role(self):
             self.fixed_ips_client.show_fixed_ip(self.ip)
@@ -64,7 +64,7 @@
     @decorators.idempotent_id('f0314501-735d-4315-9856-959e01e82f0d')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-fixed-ips")
+        rules=["os_compute_api:os-fixed-ips"])
     def test_set_reserve(self):
         with self.rbac_utils.override_role(self):
             self.fixed_ips_client.reserve_fixed_ip(self.ip, reserve="None")
@@ -72,7 +72,7 @@
     @decorators.idempotent_id('866a6fdc-a237-4502-9bf2-52fe82aba356')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-fixed-ips")
+        rules=["os_compute_api:os-fixed-ips"])
     def test_set_unreserve(self):
         with self.rbac_utils.override_role(self):
             self.fixed_ips_client.reserve_fixed_ip(self.ip, unreserve="None")
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
index a99ddbd..317c1ad 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_access_rbac.py
@@ -40,7 +40,7 @@
     @decorators.idempotent_id('a2bd3740-765d-4c95-ac98-9e027378c75e')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-access")
+        rules=["os_compute_api:os-flavor-access"])
     def test_show_flavor_contains_is_public_key(self):
         public_flavor_id = CONF.compute.flavor_ref
 
@@ -58,7 +58,7 @@
     @decorators.idempotent_id('dd388146-9750-4124-82ba-62deff1052bb')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-access")
+        rules=["os_compute_api:os-flavor-access"])
     def test_list_flavors_details_contains_is_public_key(self):
         expected_attr = 'os-flavor-access:is_public'
 
@@ -77,7 +77,7 @@
     @decorators.idempotent_id('39cb5c8f-9990-436f-9282-fc76a41d9bac')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-access:add_tenant_access")
+        rules=["os_compute_api:os-flavor-access:add_tenant_access"])
     def test_add_flavor_access(self):
         with self.rbac_utils.override_role(self):
             self.flavors_client.add_flavor_access(
@@ -88,7 +88,7 @@
     @decorators.idempotent_id('61b8621f-52e4-473a-8d07-e228af8853d1')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-access:remove_tenant_access")
+        rules=["os_compute_api:os-flavor-access:remove_tenant_access"])
     def test_remove_flavor_access(self):
         self.flavors_client.add_flavor_access(
             flavor_id=self.flavor_id, tenant_id=self.tenant_id)
@@ -103,7 +103,7 @@
     @decorators.idempotent_id('e1cf59fb-7f32-40a1-96b9-248ab23dd581')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-access")
+        rules=["os_compute_api:os-flavor-access"])
     def test_list_flavor_access(self):
         # Add flavor access for os_primary so that it can access the flavor or
         # else a NotFound is raised.
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_extra_specs_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_extra_specs_rbac.py
index 816492c..b781540 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_extra_specs_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_extra_specs_rbac.py
@@ -50,7 +50,7 @@
     @decorators.idempotent_id('daee891d-dfe9-4501-a39c-29f2371bec3c')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-extra-specs:show")
+        rules=["os_compute_api:os-flavor-extra-specs:show"])
     def test_show_flavor_extra_spec(self):
         key = self._set_flavor_extra_spec()
         with self.rbac_utils.override_role(self):
@@ -59,7 +59,7 @@
     @decorators.idempotent_id('fcffeca2-ed04-4e85-bf93-02fb5643f22b')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-extra-specs:create")
+        rules=["os_compute_api:os-flavor-extra-specs:create"])
     def test_set_flavor_extra_spec(self):
         with self.rbac_utils.override_role(self):
             self._set_flavor_extra_spec()
@@ -67,7 +67,7 @@
     @decorators.idempotent_id('42b85279-6bfa-4f58-b7a2-258c284f03c5')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-extra-specs:update")
+        rules=["os_compute_api:os-flavor-extra-specs:update"])
     def test_update_flavor_extra_spec(self):
         key = self._set_flavor_extra_spec()
         update_val = data_utils.rand_name(self.__class__.__name__ + '-val')
@@ -78,7 +78,7 @@
     @decorators.idempotent_id('4b0e5471-e010-4c09-8965-80898e6760a3')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-extra-specs:delete")
+        rules=["os_compute_api:os-flavor-extra-specs:delete"])
     def test_unset_flavor_extra_spec(self):
         key = self._set_flavor_extra_spec()
         with self.rbac_utils.override_role(self):
@@ -87,7 +87,7 @@
     @decorators.idempotent_id('02c3831a-3ce9-476e-a722-d805ac2da621')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-extra-specs:index")
+        rules=["os_compute_api:os-flavor-extra-specs:index"])
     def test_list_flavor_extra_specs(self):
         self._set_flavor_extra_spec()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_manage_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_manage_rbac.py
index f0f267c..f968d4e 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_manage_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_manage_rbac.py
@@ -32,7 +32,7 @@
     @decorators.idempotent_id('a4e7faec-7a4b-4809-9856-90d5b747ca35')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-manage:create")
+        rules=["os_compute_api:os-flavor-manage:create"])
     def test_create_flavor_manage(self):
         with self.rbac_utils.override_role(self):
             self.create_flavor()
@@ -40,7 +40,7 @@
     @decorators.idempotent_id('782e988e-061b-4c40-896f-a77c70c2b057')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-manage:delete")
+        rules=["os_compute_api:os-flavor-manage:delete"])
     def test_delete_flavor_manage(self):
         flavor_id = self.create_flavor()['id']
 
diff --git a/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
index b4531af..0748e67 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_flavor_rxtx_rbac.py
@@ -40,7 +40,7 @@
     @decorators.idempotent_id('5e1fd9f0-9a08-485a-ad9c-0fc66e4d64b7')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-rxtx")
+        rules=["os_compute_api:os-flavor-rxtx"])
     def test_list_flavors_details_rxtx(self):
         with self.rbac_utils.override_role(self):
             result = self.flavors_client.list_flavors(detail=True)['flavors']
@@ -53,7 +53,7 @@
     @decorators.idempotent_id('70c55a07-c843-4627-a29d-ba78673c1e63')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-flavor-rxtx")
+        rules=["os_compute_api:os-flavor-rxtx"])
     def test_get_flavor_rxtx(self):
         with self.rbac_utils.override_role(self):
             result = self.flavors_client.show_flavor(
diff --git a/patrole_tempest_plugin/tests/api/compute/test_floating_ip_pools_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_floating_ip_pools_rbac.py
index 7467130..eef7943 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_floating_ip_pools_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_floating_ip_pools_rbac.py
@@ -48,7 +48,7 @@
     @decorators.idempotent_id('c1a17153-b25d-4444-a721-5897d7737482')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ip-pools")
+        rules=["os_compute_api:os-floating-ip-pools"])
     def test_list_floating_ip_pools(self):
         with self.rbac_utils.override_role(self):
             self.fip_pools_client.list_floating_ip_pools()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_floating_ips_bulk_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_floating_ips_bulk_rbac.py
index 3ccef73..4a8426c 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_floating_ips_bulk_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_floating_ips_bulk_rbac.py
@@ -89,7 +89,7 @@
     @decorators.idempotent_id('9a49e73f-96a0-4e93-830a-22c4e443b486')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips-bulk")
+        rules=["os_compute_api:os-floating-ips-bulk"])
     def test_create_floating_ips_bulk(self):
         with self.rbac_utils.override_role(self):
             self._create_floating_ips_bulk()
@@ -97,7 +97,7 @@
     @decorators.idempotent_id('3b5c8a02-005d-4256-8a95-6fa2f389c6cf')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips-bulk")
+        rules=["os_compute_api:os-floating-ips-bulk"])
     def test_list_floating_ips_bulk(self):
         with self.rbac_utils.override_role(self):
             self.fip_bulk_client.list_floating_ips_bulk()
@@ -105,7 +105,7 @@
     @decorators.idempotent_id('37c2b759-c494-4e20-9dba-6a67b2df9573')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips-bulk")
+        rules=["os_compute_api:os-floating-ips-bulk"])
     def test_delete_floating_ips_bulk(self):
         self._create_floating_ips_bulk()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_floating_ips_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_floating_ips_rbac.py
index 1045512..0f37a80 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_floating_ips_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_floating_ips_rbac.py
@@ -44,7 +44,7 @@
     @decorators.idempotent_id('ac1b3053-f755-4cda-85a0-30e88b88d7ba')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips")
+        rules=["os_compute_api:os-floating-ips"])
     def test_list_floating_ips(self):
         with self.rbac_utils.override_role(self):
             self.floating_ips_client.list_floating_ips()
@@ -52,7 +52,7 @@
     @decorators.idempotent_id('bebe52b3-5269-4e72-80c8-5a4a39c3bfa6')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips")
+        rules=["os_compute_api:os-floating-ips"])
     def test_show_floating_ip(self):
         body = self.floating_ips_client.create_floating_ip(
             pool=CONF.network.floating_network_name)['floating_ip']
@@ -64,7 +64,7 @@
     @decorators.idempotent_id('2bfb8745-c329-4ee9-95f6-c165a1989dbf')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips")
+        rules=["os_compute_api:os-floating-ips"])
     def test_create_floating_ips(self):
         with self.rbac_utils.override_role(self):
             body = self.floating_ips_client.create_floating_ip(
@@ -75,7 +75,7 @@
     @decorators.idempotent_id('d3028373-5027-4e7a-b761-01c515403ecb')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-floating-ips")
+        rules=["os_compute_api:os-floating-ips"])
     def test_delete_floating_ip(self):
         body = self.floating_ips_client.create_floating_ip(
             pool=CONF.network.floating_network_name)['floating_ip']
diff --git a/patrole_tempest_plugin/tests/api/compute/test_hosts_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_hosts_rbac.py
index 41d2656..f2d8113 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_hosts_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_hosts_rbac.py
@@ -36,7 +36,7 @@
     @decorators.idempotent_id('035b7935-2fae-4218-8d37-27fa83097494')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hosts")
+        rules=["os_compute_api:os-hosts"])
     def test_list_hosts(self):
         with self.rbac_utils.override_role(self):
             self.hosts_client.list_hosts()
@@ -44,7 +44,7 @@
     @decorators.idempotent_id('bc10d8b4-d2c3-4d4e-9d2b-31d1bd3e1b51')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hosts")
+        rules=["os_compute_api:os-hosts"])
     def test_show_host_details(self):
         hosts = self.hosts_client.list_hosts()['hosts']
         hosts = [host for host in hosts if host['service'] == 'compute']
diff --git a/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
index 33f40e7..5488556 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_hypervisor_rbac.py
@@ -39,7 +39,7 @@
     @decorators.idempotent_id('17bbeb9a-e73e-445f-a771-c794448ef562')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_list_hypervisors(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.list_hypervisors()
@@ -47,7 +47,7 @@
     @decorators.idempotent_id('36b95c7d-1085-487a-a674-b7c1ca35f520')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_list_hypervisors_with_details(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.list_hypervisors(detail=True)
@@ -55,7 +55,7 @@
     @decorators.idempotent_id('8a7f6f9e-34a6-4480-8875-bba566c3a581')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_show_hypervisor(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.show_hypervisor(self.hypervisor['id'])
@@ -63,7 +63,7 @@
     @decorators.idempotent_id('ca0e465c-6365-4a7f-ae58-6f8ddbca06c2')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_show_hypervisor_statistics(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.show_hypervisor_statistics()
@@ -71,7 +71,7 @@
     @decorators.idempotent_id('109b37c5-91ba-4da5-b2a2-d7618d84406d')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_show_hypervisor_uptime(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.show_hypervisor_uptime(
@@ -102,7 +102,7 @@
     @decorators.idempotent_id('b86f03cf-2e79-4d88-9eea-62f761591413')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_list_servers_on_hypervisor(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.list_servers_on_hypervisor(
@@ -111,7 +111,7 @@
     @decorators.idempotent_id('3dbc71c1-8f04-4674-a67c-dcb2fd99b1b4')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-hypervisors")
+        rules=["os_compute_api:os-hypervisors"])
     def test_search_hypervisor(self):
         with self.rbac_utils.override_role(self):
             self.hypervisor_client.search_hypervisor(
diff --git a/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
index c988128..f6c1b67 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_images_rbac.py
@@ -79,7 +79,7 @@
     @decorators.idempotent_id('b861f302-b72b-4055-81db-c62ff30b136d')
     @rbac_rule_validation.action(
         service="glance",
-        rule="get_images")
+        rules=["get_images"])
     def test_list_images(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.list_images()
@@ -87,7 +87,7 @@
     @decorators.idempotent_id('4365ae0f-15ee-4b54-a527-1679faaed140')
     @rbac_rule_validation.action(
         service="glance",
-        rule="get_images")
+        rules=["get_images"])
     def test_list_images_with_details(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.list_images(detail=True)
@@ -95,7 +95,7 @@
     @decorators.idempotent_id('886dfcae-51bf-4610-9e52-82d7189524c2')
     @rbac_rule_validation.action(
         service="glance",
-        rule="get_image")
+        rules=["get_image"])
     def test_show_image_details(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.show_image(self.image['id'])
@@ -103,7 +103,7 @@
     @decorators.idempotent_id('5888c7aa-0803-46d4-a3fb-5d4729465cd5')
     @rbac_rule_validation.action(
         service="glance",
-        rule="delete_image")
+        rules=["delete_image"])
     def test_delete_image(self):
         image = self.glance_image_client.create_image(
             name=data_utils.rand_name(self.__class__.__name__ + '-image'))
@@ -164,7 +164,7 @@
     @decorators.idempotent_id('dbe09d4c-e615-48cb-b908-a06a0f410a8e')
     @rbac_rule_validation.action(
         service="glance",
-        rule="get_image")
+        rules=["get_image"])
     def test_show_image_metadata_item(self):
         self.compute_images_client.set_image_metadata(self.image['id'],
                                                       meta={'foo': 'bar'})
@@ -178,7 +178,7 @@
     @decorators.idempotent_id('59f66079-d564-47e8-81b0-03c2e84d339e')
     @rbac_rule_validation.action(
         service="glance",
-        rule="get_image")
+        rules=["get_image"])
     def test_list_image_metadata(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.list_image_metadata(self.image['id'])
@@ -186,7 +186,7 @@
     @decorators.idempotent_id('575604aa-909f-4b1b-a5a5-cfae1f63044b')
     @rbac_rule_validation.action(
         service="glance",
-        rule="modify_image")
+        rules=["modify_image"])
     def test_create_image_metadata(self):
         with self.rbac_utils.override_role(self):
             # NOTE(felipemonteiro): Although the name of the client function
@@ -200,7 +200,7 @@
     @decorators.idempotent_id('fb8c4eb6-00e5-454c-b8bc-0e801ec369f1')
     @rbac_rule_validation.action(
         service="glance",
-        rule="modify_image")
+        rules=["modify_image"])
     def test_update_image_metadata(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.set_image_metadata(self.image['id'],
@@ -211,7 +211,7 @@
     @decorators.idempotent_id('9c7c2036-af9b-49a8-8ba1-09b027ee5def')
     @rbac_rule_validation.action(
         service="glance",
-        rule="modify_image")
+        rules=["modify_image"])
     def test_update_image_metadata_item(self):
         with self.rbac_utils.override_role(self):
             self.compute_images_client.set_image_metadata_item(
@@ -222,7 +222,7 @@
     @decorators.idempotent_id('5f0dc4e6-0761-4613-9bde-0a6acdc78f46')
     @rbac_rule_validation.action(
         service="glance",
-        rule="modify_image")
+        rules=["modify_image"])
     def test_delete_image_metadata_item(self):
         self.compute_images_client.set_image_metadata(self.image['id'],
                                                       meta={'foo': 'bar'})
@@ -286,7 +286,7 @@
     @decorators.idempotent_id('fe34d2a6-5743-45bf-8f92-a1d703d7c7ab')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:image-size")
+        rules=["os_compute_api:image-size"])
     def test_show_image_includes_image_size(self):
         with self.rbac_utils.override_role(self):
             body = self.compute_images_client.show_image(self.image['id'])[
@@ -302,7 +302,7 @@
     @decorators.idempotent_id('08342c7d-297d-42ee-b398-90fce2443792')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:image-size")
+        rules=["os_compute_api:image-size"])
     def test_list_images_with_details_includes_image_size(self):
         with self.rbac_utils.override_role(self):
             body = self.compute_images_client.list_images(detail=True)[
diff --git a/patrole_tempest_plugin/tests/api/compute/test_instance_usages_audit_log_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_instance_usages_audit_log_rbac.py
index 347b7df..163d29a 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_instance_usages_audit_log_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_instance_usages_audit_log_rbac.py
@@ -36,7 +36,7 @@
 
     @decorators.idempotent_id('c80246c0-5c13-4ab0-97ba-91551cd53dc1')
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-instance-usage-audit-log")
+        service="nova", rules=["os_compute_api:os-instance-usage-audit-log"])
     def test_list_instance_usage_audit_logs(self):
         with self.rbac_utils.override_role(self):
             (self.instance_usages_audit_log_client
@@ -44,7 +44,7 @@
 
     @decorators.idempotent_id('ded8bfbd-5d90-4a58-aee0-d31231bf3c9b')
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-instance-usage-audit-log")
+        service="nova", rules=["os_compute_api:os-instance-usage-audit-log"])
     def test_show_instance_usage_audit_log(self):
         now = datetime.datetime.now()
 
diff --git a/patrole_tempest_plugin/tests/api/compute/test_keypairs_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_keypairs_rbac.py
index b359ad2..c024a38 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_keypairs_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_keypairs_rbac.py
@@ -34,7 +34,7 @@
     @decorators.idempotent_id('16e0ae81-e05f-48cd-b253-cf31ab0732f0')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs:create")
+        rules=["os_compute_api:os-keypairs:create"])
     def test_create_keypair(self):
         with self.rbac_utils.override_role(self):
             self._create_keypair()
@@ -42,7 +42,7 @@
     @decorators.idempotent_id('85a5eb99-40ec-4e77-9358-bee2cdf9d7df')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs:show")
+        rules=["os_compute_api:os-keypairs:show"])
     def test_show_keypair(self):
         kp_name = self._create_keypair()['keypair']['name']
         with self.rbac_utils.override_role(self):
@@ -51,7 +51,7 @@
     @decorators.idempotent_id('6bff9f1c-b809-43c1-8d63-61fbd19d49d3')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs:delete")
+        rules=["os_compute_api:os-keypairs:delete"])
     def test_delete_keypair(self):
         kp_name = self._create_keypair()['keypair']['name']
         with self.rbac_utils.override_role(self):
@@ -60,7 +60,7 @@
     @decorators.idempotent_id('6bb31346-ff7f-4b10-978e-170ac5fcfa3e')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs:index")
+        rules=["os_compute_api:os-keypairs:index"])
     def test_index_keypair(self):
         with self.rbac_utils.override_role(self):
             self.keypairs_client.list_keypairs()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_limits_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_limits_rbac.py
index 9442a5a..f1e0393 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_limits_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_limits_rbac.py
@@ -28,7 +28,7 @@
             raise cls.skipException(msg)
 
     @rbac_rule_validation.action(service="nova",
-                                 rule="os_compute_api:limits")
+                                 rules=["os_compute_api:limits"])
     @decorators.idempotent_id('3fb60f83-9a5f-4fdd-89d9-26c3710844a1')
     def test_show_limits(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_migrations_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_migrations_rbac.py
index 1597a04..6596ac9 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_migrations_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_migrations_rbac.py
@@ -32,7 +32,7 @@
     @decorators.idempotent_id('5795231c-3729-448c-a072-9a225db1a328')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-migrations:index")
+        rules=["os_compute_api:os-migrations:index"])
     def test_list_services(self):
         with self.rbac_utils.override_role(self):
             self.migrations_client.list_migrations()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_quota_class_sets_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_quota_class_sets_rbac.py
index 2f86763..52c8b3d 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_quota_class_sets_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_quota_class_sets_rbac.py
@@ -57,7 +57,7 @@
     @decorators.idempotent_id('c10198ed-9df2-440e-a49b-367dadc6de94')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-class-sets:show")
+        rules=["os_compute_api:os-quota-class-sets:show"])
     def test_show_quota_class_set(self):
         with self.rbac_utils.override_role(self):
             self.quota_classes_client.show_quota_class_set('default')
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('81889e69-efd2-4e96-bb4c-ee3b646b9755')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-class-sets:update")
+        rules=["os_compute_api:os-quota-class-sets:update"])
     def test_update_quota_class_set(self):
         # Update the pre-existing quotas for the project_id.
         quota_class_set = self.quota_classes_client.show_quota_class_set(
diff --git a/patrole_tempest_plugin/tests/api/compute/test_quota_sets_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_quota_sets_rbac.py
index ec4511a..10734cb 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_quota_sets_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_quota_sets_rbac.py
@@ -52,7 +52,7 @@
     @decorators.idempotent_id('8229ceb0-db6a-4a2c-99c2-de226905d8b6')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-sets:update")
+        rules=["os_compute_api:os-quota-sets:update"])
     def test_update_quota_set(self):
         default_quota_set = self.quotas_client.show_default_quota_set(
             self.tenant_id)['quota_set']
@@ -69,7 +69,7 @@
     @decorators.idempotent_id('58df5613-8f3c-400a-8b4b-2bae624d05e9')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-sets:defaults")
+        rules=["os_compute_api:os-quota-sets:defaults"])
     def test_show_default_quota_set(self):
         with self.rbac_utils.override_role(self):
             self.quotas_client.show_default_quota_set(self.tenant_id)
@@ -77,7 +77,7 @@
     @decorators.idempotent_id('e8169ac4-c402-4864-894e-aba74e3a459c')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-sets:show")
+        rules=["os_compute_api:os-quota-sets:show"])
     def test_show_quota_set(self):
         with self.rbac_utils.override_role(self):
             self.quotas_client.show_quota_set(self.tenant_id)
@@ -85,7 +85,7 @@
     @decorators.idempotent_id('4e240644-bf61-4872-9c32-8289ee2fdbbd')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-sets:delete")
+        rules=["os_compute_api:os-quota-sets:delete"])
     def test_delete_quota_set(self):
         project_name = data_utils.rand_name(
             self.__class__.__name__ + '-project')
@@ -100,7 +100,7 @@
     @decorators.idempotent_id('ac9184b6-f3b3-4e17-a632-4b92c6500f86')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-quota-sets:detail")
+        rules=["os_compute_api:os-quota-sets:detail"])
     def test_show_quota_set_details(self):
         with self.rbac_utils.override_role(self):
             self.quotas_client.show_quota_set(self.tenant_id,
diff --git a/patrole_tempest_plugin/tests/api/compute/test_security_groups_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_security_groups_rbac.py
index fa89a79..33d2ed1 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_security_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_security_groups_rbac.py
@@ -55,7 +55,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('3db159c6-a467-469f-9a25-574197885520')
     def test_list_security_groups_by_server(self):
         with self.rbac_utils.override_role(self):
@@ -64,7 +64,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('ea1ca73f-2d1d-43cb-9a46-900d7927b357')
     def test_create_security_group_for_server(self):
         sg_name = self.create_security_group()['name']
@@ -78,7 +78,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('0ad2e856-e2d3-4ac5-a620-f93d0d3d2626')
     def test_remove_security_group_from_server(self):
         sg_name = self.create_security_group()['name']
@@ -116,7 +116,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('4ac58e49-48c1-4fca-a6c3-3f95fb99eb77')
     def test_list_security_groups(self):
         with self.rbac_utils.override_role(self):
@@ -124,7 +124,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('e8fe7f5a-69ee-412d-81d3-a8c7a488b54d')
     def test_create_security_groups(self):
         with self.rbac_utils.override_role(self):
@@ -132,7 +132,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('59127e8e-302d-11e7-93ae-92361f002671')
     def test_delete_security_groups(self):
         sec_group_id = self.create_security_group()['id']
@@ -141,7 +141,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('3de5c6bc-b822-469e-a627-82427d38b067')
     def test_update_security_groups(self):
         sec_group_id = self.create_security_group()['id']
@@ -154,7 +154,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-security-groups")
+        rules=["os_compute_api:os-security-groups"])
     @decorators.idempotent_id('6edc0320-302d-11e7-93ae-92361f002671')
     def test_show_security_groups(self):
         sec_group_id = self.create_security_group()['id']
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
index 1fe52e9..a64bd20 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_actions_rbac.py
@@ -119,7 +119,7 @@
                           'Pause is not available.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-pause-server:pause")
+        rules=["os_compute_api:os-pause-server:pause"])
     def test_pause_server(self):
         with self.rbac_utils.override_role(self):
             self._pause_server()
@@ -129,7 +129,7 @@
                           'Pause is not available.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-pause-server:unpause")
+        rules=["os_compute_api:os-pause-server:unpause"])
     def test_unpause_server(self):
         self._pause_server()
         with self.rbac_utils.override_role(self):
@@ -139,7 +139,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:stop")
+        rules=["os_compute_api:servers:stop"])
     @decorators.idempotent_id('ab4a17d2-166f-4a6d-9944-f17baa576cf2')
     def test_stop_server(self):
         with self.rbac_utils.override_role(self):
@@ -148,7 +148,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:start")
+        rules=["os_compute_api:servers:start"])
     @decorators.idempotent_id('8876bfa9-4d10-406e-a335-a57e451abb12')
     def test_start_server(self):
         self._stop_server()
@@ -161,7 +161,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:resize")
+        rules=["os_compute_api:servers:resize"])
     @decorators.idempotent_id('0546fbdd-2d8f-4ce8-ac00-f1e2129d0765')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
                           'Resize is not available.')
@@ -172,7 +172,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:revert_resize")
+        rules=["os_compute_api:servers:revert_resize"])
     @decorators.idempotent_id('d41b64b8-a72d-414a-a4c5-94e1eb5e5a96')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
                           'Resize is not available.')
@@ -187,7 +187,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:confirm_resize")
+        rules=["os_compute_api:servers:confirm_resize"])
     @decorators.idempotent_id('f51620cb-dfcb-4e5d-b421-2e0edaa1316e')
     @testtools.skipUnless(CONF.compute_feature_enabled.resize,
                           'Resize is not available.')
@@ -202,7 +202,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:rebuild")
+        rules=["os_compute_api:servers:rebuild"])
     @decorators.idempotent_id('54b1a30b-c96c-472c-9c83-ccaf6ec7e20b')
     def test_rebuild_server(self):
         with self.rbac_utils.override_role(self):
@@ -212,7 +212,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:reboot")
+        rules=["os_compute_api:servers:reboot"])
     @decorators.idempotent_id('19f27856-56e1-44f8-8615-7257f6b85cbb')
     def test_reboot_server(self):
         with self.rbac_utils.override_role(self):
@@ -222,7 +222,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:index")
+        rules=["os_compute_api:servers:index"])
     @decorators.idempotent_id('631f0d86-7607-4198-8312-9da2f05464a4')
     def test_server_index(self):
         with self.rbac_utils.override_role(self):
@@ -230,7 +230,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:detail")
+        rules=["os_compute_api:servers:detail"])
     @decorators.idempotent_id('96093480-3ce5-4a8b-b569-aed870379c24')
     def test_server_detail(self):
         with self.rbac_utils.override_role(self):
@@ -238,7 +238,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:detail:get_all_tenants")
+        rules=["os_compute_api:servers:detail:get_all_tenants"])
     @decorators.idempotent_id('a9e5a1c0-acfe-49a2-b2b1-fd8b19d61f71')
     def test_server_detail_all_tenants(self):
         with self.rbac_utils.override_role(self):
@@ -246,7 +246,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:index:get_all_tenants")
+        rules=["os_compute_api:servers:index:get_all_tenants"])
     @decorators.idempotent_id('4b93ba56-69e6-41f5-82c4-84a5c4c42091')
     def test_server_index_all_tenants(self):
         with self.rbac_utils.override_role(self):
@@ -254,7 +254,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:show")
+        rules=["os_compute_api:servers:show"])
     @decorators.idempotent_id('eaaf4f51-31b5-497f-8f0f-f527e5f70b83')
     def test_show_server(self):
         with self.rbac_utils.override_role(self):
@@ -263,7 +263,7 @@
     @utils.services('image')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create_image")
+        rules=["os_compute_api:servers:create_image"])
     @decorators.idempotent_id('ba0ac859-99f4-4055-b5e0-e0905a44d331')
     def test_create_image(self):
         with self.rbac_utils.override_role(self):
@@ -273,7 +273,7 @@
     @utils.services('image', 'volume')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create_image:allow_volume_backed")
+        rules=["os_compute_api:servers:create_image:allow_volume_backed"])
     @decorators.idempotent_id('8b869f73-49b3-4cc4-a0ce-ef64f8e1d6f9')
     def test_create_image_from_volume_backed_server(self):
         # volume_backed=True creates a volume and create server will be
@@ -299,7 +299,7 @@
     @utils.services('image')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-create-backup")
+        rules=["os_compute_api:os-create-backup"])
     def test_create_backup(self):
         # Prioritize glance v2 over v1 for deleting/waiting for image status.
         if CONF.image_feature_enabled.api_v2:
@@ -334,7 +334,7 @@
     @decorators.idempotent_id('0b70c527-af75-4bed-9ccf-4f1310a8b60f')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-shelve:shelve")
+        rules=["os_compute_api:os-shelve:shelve"])
     def test_shelve_server(self):
         with self.rbac_utils.override_role(self):
             self._shelve_server()
@@ -343,7 +343,7 @@
     @decorators.idempotent_id('4b6e849a-9182-49ff-9257-e97e751b475e')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-shelve:unshelve")
+        rules=["os_compute_api:os-shelve:unshelve"])
     def test_unshelve_server(self):
         self._shelve_server()
         with self.rbac_utils.override_role(self):
@@ -364,7 +364,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-evacuate")
+        rules=["os_compute_api:os-evacuate"])
     @decorators.idempotent_id('78ecef3c-faff-412a-83be-47651963eb21')
     def test_evacuate_server(self):
         fake_host_name = data_utils.rand_name(
@@ -396,7 +396,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:show:host_status")
+        rules=["os_compute_api:servers:show:host_status"])
     @decorators.idempotent_id('736da575-86f8-4b2a-9902-dd37dc9a409b')
     def test_show_server_host_status(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_consoles_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_consoles_rbac.py
index fa2f359..4570ea1 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_consoles_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_consoles_rbac.py
@@ -37,7 +37,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-console-output")
+        rules=["os_compute_api:os-console-output"])
     @decorators.idempotent_id('90fd80f6-456c-11e7-a919-92ebcb67fe33')
     def test_get_console_output(self):
         with self.rbac_utils.override_role(self):
@@ -61,7 +61,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-remote-consoles")
+        rules=["os_compute_api:os-remote-consoles"])
     @decorators.idempotent_id('b0a72c02-9b15-4dcb-b186-efe8753370ab')
     def test_get_vnc_console_output(self):
         with self.rbac_utils.override_role(self):
@@ -86,7 +86,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-remote-consoles")
+        rules=["os_compute_api:os-remote-consoles"])
     @decorators.idempotent_id('879597de-87e0-4da9-a60a-28c8088dc508')
     def test_get_remote_console_output(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_groups_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_groups_rbac.py
index 1674b1a..26ef0fe 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_groups_rbac.py
@@ -31,7 +31,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-groups:create")
+        rules=["os_compute_api:os-server-groups:create"])
     @decorators.idempotent_id('7f3eae94-6130-47e9-81ac-34009f55be2f')
     def test_create_server_group(self):
         with self.rbac_utils.override_role(self):
@@ -39,7 +39,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-groups:delete")
+        rules=["os_compute_api:os-server-groups:delete"])
     @decorators.idempotent_id('832d9be3-632e-47b2-93d2-5897db43e3e2')
     def test_delete_server_group(self):
         server_group = self.create_test_server_group()
@@ -48,7 +48,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-groups:index")
+        rules=["os_compute_api:os-server-groups:index"])
     @decorators.idempotent_id('5eccd67f-5945-483b-b1c8-de851ebfc1c1')
     def test_list_server_groups(self):
         with self.rbac_utils.override_role(self):
@@ -56,7 +56,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-groups:show")
+        rules=["os_compute_api:os-server-groups:show"])
     @decorators.idempotent_id('62534e3f-7e99-4a3d-a08e-33e056460cf2')
     def test_show_server_group(self):
         server_group = self.create_test_server_group()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_metadata_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_metadata_rbac.py
index 05b1758..6193938 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_metadata_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_metadata_rbac.py
@@ -35,7 +35,7 @@
     @decorators.idempotent_id('b07bbc27-58e2-4581-869d-ad228cec5d9a')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:index")
+        rules=["os_compute_api:server-metadata:index"])
     def test_list_server_metadata(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.list_server_metadata(self.server['id'])
@@ -43,7 +43,7 @@
     @decorators.idempotent_id('6e76748b-2417-4fa2-b41a-c0cc4bff356b')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:update_all")
+        rules=["os_compute_api:server-metadata:update_all"])
     def test_set_server_metadata(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.set_server_metadata(self.server['id'], {})
@@ -51,7 +51,7 @@
     @decorators.idempotent_id('1060bac4-fe16-4a77-be64-d8e482a06eab')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:create")
+        rules=["os_compute_api:server-metadata:create"])
     def test_update_server_metadata(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.update_server_metadata(self.server['id'], {})
@@ -59,7 +59,7 @@
     @decorators.idempotent_id('93dd8323-d3fa-48d1-8bd6-91c1b62fc341')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:show")
+        rules=["os_compute_api:server-metadata:show"])
     def test_show_server_metadata_item(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.show_server_metadata_item(
@@ -68,7 +68,7 @@
     @decorators.idempotent_id('79511293-4bd7-447d-ba7e-634d0f4da70c')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:update")
+        rules=["os_compute_api:server-metadata:update"])
     def test_set_server_metadata_item(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.set_server_metadata_item(
@@ -77,7 +77,7 @@
     @decorators.idempotent_id('feec5064-678d-40bc-a88f-c856e18d1e31')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:server-metadata:delete")
+        rules=["os_compute_api:server-metadata:delete"])
     def test_delete_server_metadata_item(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.delete_server_metadata_item(
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_migrations_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_migrations_rbac.py
index a867b81..8ae8bc0 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_migrations_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_migrations_rbac.py
@@ -62,7 +62,7 @@
                           'Cold migration not available.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-migrate-server:migrate")
+        rules=["os_compute_api:os-migrate-server:migrate"])
     @decorators.idempotent_id('c6f1607c-9fed-4c00-807e-9ba675b98b1b')
     def test_cold_migration(self):
         server = self.create_test_server(wait_until="ACTIVE")
@@ -76,7 +76,7 @@
                           'Live migration feature is not enabled.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-migrate-server:migrate_live")
+        rules=["os_compute_api:os-migrate-server:migrate_live"])
     @decorators.idempotent_id('33520834-72c8-4edb-a189-a2e0fc9eb0d3')
     def test_migration_live(self):
         server_id = self.create_test_server(wait_until="ACTIVE",
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
index 5681799..88bea25 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_misc_policy_actions_rbac.py
@@ -81,7 +81,7 @@
     @utils.requires_ext(extension='os-admin-actions', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-admin-actions:reset_state")
+        rules=["os_compute_api:os-admin-actions:reset_state"])
     @decorators.idempotent_id('ae84dd0b-f364-462e-b565-3457f9c019ef')
     def test_reset_server_state(self):
         """Test reset server state, part of os-admin-actions."""
@@ -93,7 +93,7 @@
     @utils.requires_ext(extension='os-admin-actions', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-admin-actions:inject_network_info")
+        rules=["os_compute_api:os-admin-actions:inject_network_info"])
     @decorators.idempotent_id('ce48c340-51c1-4cff-9b6e-0cc5ef008630')
     def test_inject_network_info(self):
         """Test inject network info, part of os-admin-actions."""
@@ -103,7 +103,7 @@
     @utils.requires_ext(extension='os-admin-actions', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-admin-actions:reset_network")
+        rules=["os_compute_api:os-admin-actions:reset_network"])
     @decorators.idempotent_id('2911a242-15c4-4fcb-80d5-80a8930661b0')
     def test_reset_network(self):
         """Test reset network, part of os-admin-actions."""
@@ -114,7 +114,7 @@
                           'Change password not available.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-admin-password")
+        rules=["os_compute_api:os-admin-password"])
     @decorators.idempotent_id('908a7d59-3a66-441c-94cf-38e57ed14956')
     def test_change_server_password(self):
         """Test change admin password, part of os-admin-password."""
@@ -135,7 +135,7 @@
     @decorators.idempotent_id('2c82e819-382d-4d6f-87f0-a45954cbbc64')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-config-drive")
+        rules=["os_compute_api:os-config-drive"])
     def test_list_servers_with_details_config_drive(self):
         """Test list servers with config_drive property in response body."""
         with self.rbac_utils.override_role(self):
@@ -152,7 +152,7 @@
     @decorators.idempotent_id('55c62ef7-b72b-4970-acc6-05b0a4316e5d')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-config-drive")
+        rules=["os_compute_api:os-config-drive"])
     def test_show_server_config_drive(self):
         """Test show server with config_drive property in response body."""
         with self.rbac_utils.override_role(self):
@@ -166,7 +166,7 @@
     @decorators.idempotent_id('189bfed4-1e6d-475c-bb8c-d57e60895391')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-deferred-delete")
+        rules=["os_compute_api:os-deferred-delete"])
     def test_force_delete_server(self):
         """Test force delete server, part of os-deferred-delete."""
         with self.rbac_utils.override_role(self):
@@ -179,7 +179,7 @@
     @utils.requires_ext(extension='OS-EXT-AZ', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-availability-zone")
+        rules=["os_compute_api:os-extended-availability-zone"])
     def test_list_servers_with_details_extended_availability_zone(self):
         """Test list servers OS-EXT-AZ:availability_zone attr in resp body."""
         expected_attr = 'OS-EXT-AZ:availability_zone'
@@ -197,7 +197,7 @@
     @utils.requires_ext(extension='OS-EXT-AZ', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-availability-zone")
+        rules=["os_compute_api:os-extended-availability-zone"])
     def test_show_server_extended_availability_zone(self):
         """Test show server OS-EXT-AZ:availability_zone attr in resp body."""
         expected_attr = 'OS-EXT-AZ:availability_zone'
@@ -214,7 +214,7 @@
     @utils.requires_ext(extension='OS-EXT-SRV-ATTR', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-server-attributes")
+        rules=["os_compute_api:os-extended-server-attributes"])
     def test_list_servers_extended_server_attributes(self):
         """Test list servers with details, with extended server attributes in
         response body.
@@ -238,7 +238,7 @@
     @utils.requires_ext(extension='OS-EXT-SRV-ATTR', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-server-attributes")
+        rules=["os_compute_api:os-extended-server-attributes"])
     def test_show_server_extended_server_attributes(self):
         """Test show server with extended server attributes in response
         body.
@@ -262,7 +262,7 @@
     @utils.requires_ext(extension='OS-EXT-STS', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-status")
+        rules=["os_compute_api:os-extended-status"])
     def test_list_servers_extended_status(self):
         """Test list servers with extended properties in response body."""
         with self.rbac_utils.override_role(self):
@@ -281,7 +281,7 @@
     @utils.requires_ext(extension='OS-EXT-STS', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-status")
+        rules=["os_compute_api:os-extended-status"])
     def test_show_server_extended_status(self):
         """Test show server with extended properties in response body."""
         with self.rbac_utils.override_role(self):
@@ -300,7 +300,7 @@
     @utils.requires_ext(extension='os-extended-volumes', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-volumes")
+        rules=["os_compute_api:os-extended-volumes"])
     def test_list_servers_with_details_extended_volumes(self):
         """Test list servers os-extended-volumes:volumes_attached attr in resp
         body.
@@ -319,7 +319,7 @@
     @utils.requires_ext(extension='os-extended-volumes', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-extended-volumes")
+        rules=["os_compute_api:os-extended-volumes"])
     def test_show_server_extended_volumes(self):
         """Test show server os-extended-volumes:volumes_attached attr in resp
         body.
@@ -336,7 +336,7 @@
     @decorators.idempotent_id('9d1b131d-407e-4fa3-8eef-eb2c4526f1da')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-instance-actions")
+        rules=["os_compute_api:os-instance-actions"])
     def test_list_instance_actions(self):
         """Test list instance actions, part of os-instance-actions."""
         with self.rbac_utils.override_role(self):
@@ -346,7 +346,7 @@
     @decorators.idempotent_id('eb04c439-4215-4029-9ccb-5b3c041bfc25')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-instance-actions:events")
+        rules=["os_compute_api:os-instance-actions:events"])
     def test_show_instance_action(self):
         """Test show instance action, part of os-instance-actions.
 
@@ -372,7 +372,7 @@
                       "This API extension policy was removed in Stein")
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs")
+        rules=["os_compute_api:os-keypairs"])
     @decorators.idempotent_id('81e6fa34-c06b-42ca-b195-82bf8699b940')
     def test_show_server_keypair(self):
         with self.rbac_utils.override_role(self):
@@ -386,7 +386,7 @@
                       "This API extension policy was removed in Stein")
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-keypairs")
+        rules=["os_compute_api:os-keypairs"])
     @decorators.idempotent_id('41ca4280-ec59-4b80-a9b1-6bc6366faf39')
     def test_list_servers_keypairs(self):
         with self.rbac_utils.override_role(self):
@@ -397,7 +397,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-lock-server:lock")
+        rules=["os_compute_api:os-lock-server:lock"])
     @decorators.idempotent_id('b81e10fb-1864-498f-8c1d-5175c6fec5fb')
     def test_lock_server(self):
         """Test lock server, part of os-lock-server."""
@@ -407,7 +407,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-lock-server:unlock")
+        rules=["os_compute_api:os-lock-server:unlock"])
     @decorators.idempotent_id('d50ef8e8-4bce-11e7-b114-b2f933d5fe66')
     def test_unlock_server(self):
         """Test unlock server, part of os-lock-server."""
@@ -438,7 +438,7 @@
     @utils.requires_ext(extension='os-rescue', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-rescue")
+        rules=["os_compute_api:os-rescue"])
     @decorators.idempotent_id('fbbb2afc-ed0e-4552-887d-ac00fb5d436e')
     def test_rescue_server(self):
         """Test rescue server, part of os-rescue."""
@@ -451,7 +451,7 @@
     @utils.requires_ext(extension='os-rescue', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-rescue")
+        rules=["os_compute_api:os-rescue"])
     def test_unrescue_server(self):
         """Test unrescue server, part of os-rescue."""
         self.servers_client.rescue_server(self.server['id'])
@@ -466,7 +466,7 @@
     @utils.requires_ext(extension='os-server-diagnostics', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-diagnostics")
+        rules=["os_compute_api:os-server-diagnostics"])
     @decorators.idempotent_id('5dabfcc4-bedb-417b-8247-b3ee7c5c0f3e')
     def test_show_server_diagnostics(self):
         """Test show server diagnostics, part of os-server-diagnostics."""
@@ -477,7 +477,7 @@
     @decorators.idempotent_id('aaf43f78-c178-4581-ac18-14afd3f1f6ba')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-password")
+        rules=["os_compute_api:os-server-password"])
     def test_delete_server_password(self):
         """Test delete server password, part of os-server-password."""
         with self.rbac_utils.override_role(self):
@@ -486,7 +486,7 @@
     @utils.requires_ext(extension='os-server-password', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-password")
+        rules=["os_compute_api:os-server-password"])
     @decorators.idempotent_id('f677971a-7d20-493c-977f-6ff0a74b5b2c')
     def test_get_server_password(self):
         """Test show server password, part of os-server-password."""
@@ -498,7 +498,7 @@
     @utils.requires_ext(extension='OS-SRV-USG', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-usage")
+        rules=["os_compute_api:os-server-usage"])
     @decorators.idempotent_id('f0437ead-b9fb-462a-9f3d-ce53fac9d57a')
     def test_show_server_usage(self):
         """Test show server usage, part of os-server-usage.
@@ -520,7 +520,7 @@
     @utils.requires_ext(extension='os-simple-tenant-usage', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-simple-tenant-usage:list")
+        rules=["os_compute_api:os-simple-tenant-usage:list"])
     @decorators.idempotent_id('2aef094f-0452-4df6-a66a-0ec22a92b16e')
     def test_list_simple_tenant_usages(self):
         """Test list tenant usages, part of os-simple-tenant-usage."""
@@ -530,7 +530,7 @@
     @utils.requires_ext(extension='os-simple-tenant-usage', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-simple-tenant-usage:show")
+        rules=["os_compute_api:os-simple-tenant-usage:show"])
     @decorators.idempotent_id('fe7eacda-15c4-4bf7-93ef-1091c4546a9d')
     def test_show_simple_tenant_usage(self):
         """Test show tenant usage, part of os-simple-tenant-usage."""
@@ -544,7 +544,7 @@
     @decorators.idempotent_id('b775930f-237c-431c-83ae-d33ed1b9700b')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-suspend-server:suspend")
+        rules=["os_compute_api:os-suspend-server:suspend"])
     def test_suspend_server(self):
         """Test suspend server, part of os-suspend-server."""
         with self.rbac_utils.override_role(self):
@@ -558,7 +558,7 @@
     @decorators.idempotent_id('4d90bd02-11f8-45b1-a8a1-534665584675')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-suspend-server:resume")
+        rules=["os_compute_api:os-suspend-server:resume"])
     def test_resume_server(self):
         """Test resume server, part of os-suspend-server."""
         self.servers_client.suspend_server(self.server['id'])
@@ -654,7 +654,7 @@
     @decorators.idempotent_id('ddf53cb6-4a0a-4e5a-91e3-6c32aaa3b9b6')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-attach-interfaces")
+        rules=["os_compute_api:os-attach-interfaces"])
     def test_list_interfaces(self):
         """Test list interfaces, part of os-attach-interfaces."""
         with self.rbac_utils.override_role(self):
@@ -666,7 +666,7 @@
     @utils.requires_ext(extension='os-attach-interfaces', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-attach-interfaces")
+        rules=["os_compute_api:os-attach-interfaces"])
     def test_show_interface(self):
         """Test show interfaces, part of os-attach-interfaces."""
         interface = self._attach_interface_to_server()
@@ -680,7 +680,7 @@
     @decorators.idempotent_id('d2d3a24d-4738-4bce-a287-36d664746cde')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-attach-interfaces:create")
+        rules=["os_compute_api:os-attach-interfaces:create"])
     def test_create_interface(self):
         """Test create interface, part of os-attach-interfaces."""
         network_id = self.network['id']
@@ -704,7 +704,7 @@
     @decorators.idempotent_id('55b05692-ed44-4608-a84c-cd4219c82799')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-attach-interfaces:delete")
+        rules=["os_compute_api:os-attach-interfaces:delete"])
     def test_delete_interface(self):
         """Test delete interface, part of os-attach-interfaces."""
         interface = self._attach_interface_to_server()
@@ -719,7 +719,7 @@
     @utils.requires_ext(extension='os-ips', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:ips:index")
+        rules=["os_compute_api:ips:index"])
     def test_list_addresses(self):
         """Test list server addresses, part of ips policy family."""
         with self.rbac_utils.override_role(self):
@@ -729,7 +729,7 @@
     @utils.requires_ext(extension='os-ips', service='compute')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:ips:show")
+        rules=["os_compute_api:ips:show"])
     def test_list_addresses_by_network(self):
         """Test list server addresses by network, part of ips policy family."""
         addresses = self.servers_client.list_addresses(self.server['id'])[
@@ -744,7 +744,7 @@
                           "Interface attachment is not available.")
     @utils.requires_ext(extension='os-multinic', service='compute')
     @rbac_rule_validation.action(
-        service="nova", rule="os_compute_api:os-multinic")
+        service="nova", rules=["os_compute_api:os-multinic"])
     @decorators.idempotent_id('bd3e2c74-130a-40f0-8085-124d93fe67da')
     def test_add_fixed_ip(self):
         """Test add fixed ip to server network, part of os-multinic."""
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_rbac.py
index cae31f6..7a9c902 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_rbac.py
@@ -47,7 +47,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create")
+        rules=["os_compute_api:servers:create"])
     @decorators.idempotent_id('4f34c73a-6ddc-4677-976f-71320fa855bd')
     def test_create_server(self):
         with self.rbac_utils.override_role(self):
@@ -61,7 +61,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create:forced_host")
+        rules=["os_compute_api:servers:create:forced_host"])
     @decorators.idempotent_id('0ae3c401-52ab-41bc-ab96-c598a65d9ae5')
     def test_create_server_forced_host(self):
         # Retrieve 'nova' zone host information from availiability_zone_list
@@ -88,7 +88,7 @@
     @utils.services('volume')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create:attach_volume")
+        rules=["os_compute_api:servers:create:attach_volume"])
     @decorators.idempotent_id('eeddac5e-15aa-454f-838d-db608aae4dd8')
     def test_create_server_attach_volume(self):
         # To create a bootable volume, the UUID of the image from which
@@ -126,7 +126,7 @@
     @utils.services('network')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:create:attach_network")
+        rules=["os_compute_api:servers:create:attach_network"])
     @decorators.idempotent_id('b44cd4ff-50a4-42ce-ada3-724e213cd540')
     def test_create_server_attach_network(self):
         def _create_network_resources():
@@ -165,7 +165,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:delete")
+        rules=["os_compute_api:servers:delete"])
     @decorators.idempotent_id('062e3440-e873-4b41-9317-bf6d8be50c12')
     def test_delete_server(self):
         server = self.create_test_server(wait_until='ACTIVE')
@@ -177,7 +177,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:servers:update")
+        rules=["os_compute_api:servers:update"])
     @decorators.idempotent_id('077b17cb-5621-43b9-8adf-5725f0d7a863')
     def test_update_server(self):
         new_name = data_utils.rand_name(self.__class__.__name__ + '-server')
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_tags_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_tags_rbac.py
index 70e7da9..ac571b9 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_tags_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_tags_rbac.py
@@ -47,7 +47,7 @@
     @decorators.idempotent_id('99e73dd3-adec-4044-b46c-84bdded35d09')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:index")
+        rules=["os_compute_api:os-server-tags:index"])
     def test_list_tags(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.list_tags(self.server['id'])
@@ -55,7 +55,7 @@
     @decorators.idempotent_id('9297c99e-94eb-429f-93cf-9b1838e33622')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:show")
+        rules=["os_compute_api:os-server-tags:show"])
     def test_check_tag_existence(self):
         tag_name = self._add_tag_to_server()
         with self.rbac_utils.override_role(self):
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('0d84ee94-d3ca-4635-8edf-b7f67ab8e4a3')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:update")
+        rules=["os_compute_api:os-server-tags:update"])
     def test_update_tag(self):
         with self.rbac_utils.override_role(self):
             self._add_tag_to_server()
@@ -73,7 +73,7 @@
     @decorators.idempotent_id('115c2694-00aa-41ee-99f6-9eab4040c182')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:delete")
+        rules=["os_compute_api:os-server-tags:delete"])
     def test_delete_tag(self):
         tag_name = self._add_tag_to_server()
         with self.rbac_utils.override_role(self):
@@ -82,7 +82,7 @@
     @decorators.idempotent_id('a8e19b87-6580-4bc8-9933-e62561ff667d')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:update_all")
+        rules=["os_compute_api:os-server-tags:update_all"])
     def test_update_all_tags(self):
         new_tag_name = data_utils.rand_name(self.__class__.__name__ + '-tag')
         with self.rbac_utils.override_role(self):
@@ -92,7 +92,7 @@
     @decorators.idempotent_id('89d51936-e333-42f9-a045-132a4865ba1a')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-server-tags:delete_all")
+        rules=["os_compute_api:os-server-tags:delete_all"])
     def test_delete_all_tags(self):
         with self.rbac_utils.override_role(self):
             self.servers_client.delete_all_tags(self.server['id'])
diff --git a/patrole_tempest_plugin/tests/api/compute/test_server_volume_attachments_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_server_volume_attachments_rbac.py
index a510d1e..cb76605 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_server_volume_attachments_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_server_volume_attachments_rbac.py
@@ -51,7 +51,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes-attachments:index")
+        rules=["os_compute_api:os-volumes-attachments:index"])
     @decorators.idempotent_id('529b668b-6edb-41d5-8886-d7dbd0614678')
     def test_list_volume_attachments(self):
         with self.rbac_utils.override_role(self):
@@ -60,7 +60,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes-attachments:create")
+        rules=["os_compute_api:os-volumes-attachments:create"])
     @decorators.idempotent_id('21c2c3fd-fbe8-41b1-8ef8-115ec47d54c1')
     def test_create_volume_attachment(self):
         with self.rbac_utils.override_role(self):
@@ -69,7 +69,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes-attachments:show")
+        rules=["os_compute_api:os-volumes-attachments:show"])
     @decorators.idempotent_id('997df9c2-6e54-47b6-ab74-e4fdb500f385')
     def test_show_volume_attachment(self):
         attachment = self.attach_volume(self.server, self.volume)
@@ -83,7 +83,7 @@
                           'In-place swapping of volumes not supported.')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes-attachments:update")
+        rules=["os_compute_api:os-volumes-attachments:update"])
     @decorators.idempotent_id('bd667186-eca6-4b78-ab6a-3e2fabcb971f')
     def test_update_volume_attachment(self):
         attachment = self.attach_volume(self.server, self.volume)
@@ -108,7 +108,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes-attachments:delete")
+        rules=["os_compute_api:os-volumes-attachments:delete"])
     @decorators.idempotent_id('12b03e90-d087-46af-9c4d-507d021c4984')
     def test_delete_volume_attachment(self):
         self.attach_volume(self.server, self.volume)
diff --git a/patrole_tempest_plugin/tests/api/compute/test_services_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_services_rbac.py
index 183d990..f32e117 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_services_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_services_rbac.py
@@ -31,7 +31,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-services")
+        rules=["os_compute_api:os-services"])
     @decorators.idempotent_id('7472261b-9c6d-453a-bcb3-aecaa29ad281')
     def test_list_services(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/compute/test_tenant_networks_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_tenant_networks_rbac.py
index 49fb34c..a4ccc10 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_tenant_networks_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_tenant_networks_rbac.py
@@ -54,7 +54,7 @@
     @decorators.idempotent_id('42b39ba1-14aa-4799-9518-34367d0da67a')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-tenant-networks")
+        rules=["os_compute_api:os-tenant-networks"])
     def test_list_show_tenant_networks(self):
         with self.rbac_utils.override_role(self):
             self.tenant_networks_client.list_tenant_networks()
diff --git a/patrole_tempest_plugin/tests/api/compute/test_virtual_interfaces_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_virtual_interfaces_rbac.py
index ae77a34..8376be0 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_virtual_interfaces_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_virtual_interfaces_rbac.py
@@ -45,7 +45,7 @@
 
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-virtual-interfaces")
+        rules=["os_compute_api:os-virtual-interfaces"])
     @decorators.idempotent_id('fc719ae3-0f73-4689-8378-1b841f0f2818')
     def test_list_virtual_interfaces(self):
         """Test list virtual interfaces, part of os-virtual-interfaces.
diff --git a/patrole_tempest_plugin/tests/api/compute/test_volume_rbac.py b/patrole_tempest_plugin/tests/api/compute/test_volume_rbac.py
index b07fb3f..3c693ab 100644
--- a/patrole_tempest_plugin/tests/api/compute/test_volume_rbac.py
+++ b/patrole_tempest_plugin/tests/api/compute/test_volume_rbac.py
@@ -60,7 +60,7 @@
     @decorators.idempotent_id('2402013e-a624-43e3-9518-44a5d1dbb32d')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_create_volume(self):
         with self.rbac_utils.override_role(self):
             volume = self.volumes_extensions_client.create_volume(
@@ -73,7 +73,7 @@
     @decorators.idempotent_id('69b3888c-dff2-47b0-9fa4-0672619c9054')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_list_volumes(self):
         with self.rbac_utils.override_role(self):
             self.volumes_extensions_client.list_volumes()
@@ -81,7 +81,7 @@
     @decorators.idempotent_id('4ba0a820-040f-488b-86bb-be2e920ea12c')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_show_volume(self):
         with self.rbac_utils.override_role(self):
             self.volumes_extensions_client.show_volume(self.volume['id'])
@@ -89,7 +89,7 @@
     @decorators.idempotent_id('6e7870f2-1bb2-4b58-96f8-6782071ef327')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_delete_volume(self):
         volume = self.create_volume()
         with self.rbac_utils.override_role(self):
@@ -98,7 +98,7 @@
     @decorators.idempotent_id('0c3eaa4f-69d6-4a13-9dda-19585f36b1c1')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_create_snapshot(self):
         s_name = data_utils.rand_name(self.__class__.__name__ + '-Snapshot')
         with self.rbac_utils.override_role(self):
@@ -110,7 +110,7 @@
     @decorators.idempotent_id('e944e816-416c-11e7-a919-92ebcb67fe33')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_list_snapshots(self):
         with self.rbac_utils.override_role(self):
             self.snapshots_extensions_client.list_snapshots()
@@ -118,7 +118,7 @@
     @decorators.idempotent_id('19c2e6bd-585b-472f-a8d7-71ea9299c655')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_show_snapshot(self):
         s_name = data_utils.rand_name(self.__class__.__name__ + '-Snapshot')
         snapshot = self.snapshots_extensions_client.create_snapshot(
@@ -131,7 +131,7 @@
     @decorators.idempotent_id('f4f5635c-416c-11e7-a919-92ebcb67fe33')
     @rbac_rule_validation.action(
         service="nova",
-        rule="os_compute_api:os-volumes")
+        rules=["os_compute_api:os-volumes"])
     def test_delete_snapshot(self):
         s_name = data_utils.rand_name(self.__class__.__name__ + '-Snapshot')
         snapshot = self.snapshots_extensions_client.create_snapshot(
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_application_credentials_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_application_credentials_rbac.py
index c7a6033..1d466f3 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_application_credentials_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_application_credentials_rbac.py
@@ -52,23 +52,26 @@
         return application_credential
 
     @decorators.idempotent_id('b53bee14-e9df-4929-b257-6def76c12e4d')
-    @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_application_credential")
+    @rbac_rule_validation.action(
+        service="keystone",
+        rules=["identity:create_application_credential"])
     def test_create_application_credential(self):
         with self.rbac_utils.override_role(self):
             self._create_application_credential()
 
     @decorators.idempotent_id('58b3c3a0-5ad0-44f7-8da7-0736f71f7168')
-    @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_application_credentials")
+    @rbac_rule_validation.action(
+        service="keystone",
+        rules=["identity:list_application_credentials"])
     def test_list_application_credentials(self):
         with self.rbac_utils.override_role(self):
             self.application_credentials_client.list_application_credentials(
                 user_id=self.user_id)
 
     @decorators.idempotent_id('d7b13968-a8a6-47fd-8e1d-7cc7f565c7f8')
-    @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_application_credential")
+    @rbac_rule_validation.action(
+        service="keystone",
+        rules=["identity:get_application_credential"])
     def test_show_application_credential(self):
         app_cred = self._create_application_credential()
         with self.rbac_utils.override_role(self):
@@ -76,8 +79,9 @@
                 user_id=self.user_id, application_credential_id=app_cred['id'])
 
     @decorators.idempotent_id('521b7c0f-1dd5-47a6-ae95-95c0323d7735')
-    @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_application_credential")
+    @rbac_rule_validation.action(
+        service="keystone",
+        rules=["identity:delete_application_credential"])
     def test_delete_application_credential(self):
         app_cred = self._create_application_credential()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_auth_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_auth_rbac.py
index 8393696..a63192f 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_auth_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_auth_rbac.py
@@ -32,14 +32,14 @@
 
     @decorators.idempotent_id('2a9fbf7f-6feb-4161-ae4b-faf7d6421b1a')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_auth_projects")
+                                 rules=["identity:get_auth_projects"])
     def test_list_auth_projects(self):
         with self.rbac_utils.override_role(self):
             self.identity_client.list_auth_projects()
 
     @decorators.idempotent_id('6a40af0d-7265-4657-b6b2-87a2828e263e')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_auth_domains")
+                                 rules=["identity:get_auth_domains"])
     def test_list_auth_domain(self):
         with self.rbac_utils.override_role(self):
             self.identity_client.list_auth_domains()
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_credentials_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_credentials_rbac.py
index af6feb6..977a830 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_credentials_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_credentials_rbac.py
@@ -29,7 +29,7 @@
         return credential
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_credential")
+                                 rules=["identity:create_credential"])
     @decorators.idempotent_id('c1ab6d34-c59f-4ae1-bae9-bb3c1089b48e')
     def test_create_credential(self):
         project = self.setup_test_project()
@@ -38,7 +38,7 @@
             self.setup_test_credential(user=user)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_credential")
+                                 rules=["identity:update_credential"])
     @decorators.idempotent_id('cfb05ce3-bffb-496e-a3c2-9515d730da63')
     def test_update_credential(self):
         credential = self._create_user_project_and_credential()
@@ -54,7 +54,7 @@
                 project_id=credential['project_id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_credential")
+                                 rules=["identity:delete_credential"])
     @decorators.idempotent_id('87ab42af-8d41-401b-90df-21e72919fcde')
     def test_delete_credential(self):
         credential = self._create_user_project_and_credential()
@@ -63,7 +63,7 @@
             self.creds_client.delete_credential(credential['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_credential")
+                                 rules=["identity:get_credential"])
     @decorators.idempotent_id('1b6eeae6-f1e8-4cdf-8903-1c002b1fc271')
     def test_show_credential(self):
         credential = self._create_user_project_and_credential()
@@ -72,7 +72,7 @@
             self.creds_client.show_credential(credential['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_credentials")
+                                 rules=["identity:list_credentials"])
     @decorators.idempotent_id('3de303e2-12a7-4811-805a-f18906472038')
     def test_list_credentials(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_domain_configuration_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_domain_configuration_rbac.py
index 8db8906..4fa3937 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_domain_configuration_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_domain_configuration_rbac.py
@@ -53,14 +53,14 @@
         return domain_config
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_domain_config")
+                                 rules=["identity:create_domain_config"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd115')
     def test_create_domain_config(self):
         with self.rbac_utils.override_role(self):
             self._create_domain_config(self.domain_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config")
+                                 rules=["identity:get_domain_config"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd118')
     def test_show_domain_config(self):
         with self.rbac_utils.override_role(self):
@@ -68,7 +68,7 @@
 
     @decorators.idempotent_id('1b539f95-4991-4e09-960f-fa771e1007d7')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config")
+                                 rules=["identity:get_domain_config"])
     def test_show_domain_group_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.show_domain_group_config(
@@ -76,7 +76,7 @@
 
     @decorators.idempotent_id('590c774d-a294-44f8-866e-aac9f4ab3809')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config")
+                                 rules=["identity:get_domain_config"])
     def test_show_domain_group_option_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.show_domain_group_option_config(
@@ -85,7 +85,7 @@
     @decorators.idempotent_id('21053885-1ce3-4167-b5e3-e470253481da')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:get_security_compliance_domain_config")
+        rules=["identity:get_security_compliance_domain_config"])
     def test_show_security_compliance_domain_config(self):
         # The "security_compliance" group can only be shown for the default
         # domain.
@@ -95,28 +95,28 @@
 
     @decorators.idempotent_id('d1addd10-9ae4-4360-9961-47324fd22f23')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config_default")
+                                 rules=["identity:get_domain_config_default"])
     def test_show_default_config_settings(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.show_default_config_settings()
 
     @decorators.idempotent_id('63183377-251f-4622-81f0-6b58a8a285c9')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config_default")
+                                 rules=["identity:get_domain_config_default"])
     def test_show_default_group_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.show_default_group_config('identity')
 
     @decorators.idempotent_id('6440e9c1-e8da-474d-9118-89996fffe5f8')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain_config_default")
+                                 rules=["identity:get_domain_config_default"])
     def test_show_default_group_option(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.show_default_group_option('identity',
                                                                 'driver')
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_domain_config")
+                                 rules=["identity:update_domain_config"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd116')
     def test_update_domain_config(self):
         updated_config = {'ldap': {'url': data_utils.rand_url()}}
@@ -126,7 +126,7 @@
 
     @decorators.idempotent_id('6e32bf96-dbe9-4ac8-b814-0e79fa948285')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_domain_config")
+                                 rules=["identity:update_domain_config"])
     def test_update_domain_group_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.update_domain_group_config(
@@ -134,14 +134,14 @@
 
     @decorators.idempotent_id('d2c510da-a077-4c67-9522-27745ef2812b')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_domain_config")
+                                 rules=["identity:update_domain_config"])
     def test_update_domain_group_option_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.update_domain_group_option_config(
                 self.domain_id, 'identity', 'driver', driver='ldap')
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_domain_config")
+                                 rules=["identity:delete_domain_config"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd117')
     def test_delete_domain_config(self):
         with self.rbac_utils.override_role(self):
@@ -149,7 +149,7 @@
 
     @decorators.idempotent_id('f479694b-df02-4d5a-88b6-c8b52f9341eb')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_domain_config")
+                                 rules=["identity:delete_domain_config"])
     def test_delete_domain_group_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.delete_domain_group_config(
@@ -157,7 +157,7 @@
 
     @decorators.idempotent_id('f594bde3-31c9-414f-922d-0ddafdc0ca40')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_domain_config")
+                                 rules=["identity:delete_domain_config"])
     def test_delete_domain_group_option_config(self):
         with self.rbac_utils.override_role(self):
             self.domain_config_client.delete_domain_group_option_config(
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_domains_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_domains_rbac.py
index 3837051..ab38876 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_domains_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_domains_rbac.py
@@ -23,14 +23,14 @@
 class IdentityDomainsV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_domain")
+                                 rules=["identity:create_domain"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd110')
     def test_create_domain(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_domain()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_domain")
+                                 rules=["identity:update_domain"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd111')
     def test_update_domain(self):
         domain = self.setup_test_domain()
@@ -42,7 +42,7 @@
                                               name=new_domain_name)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_domain")
+                                 rules=["identity:delete_domain"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd112')
     def test_delete_domain(self):
         domain = self.setup_test_domain()
@@ -54,7 +54,7 @@
             self.domains_client.delete_domain(domain['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_domain")
+                                 rules=["identity:get_domain"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd113')
     def test_show_domain(self):
         domain = self.setup_test_domain()
@@ -62,7 +62,7 @@
             self.domains_client.show_domain(domain['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_domains")
+                                 rules=["identity:list_domains"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd114')
     def test_list_domains(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_endpoints_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_endpoints_rbac.py
index ad1fd9b..ec5ffa3 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_endpoints_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_endpoints_rbac.py
@@ -23,7 +23,7 @@
 class IdentityEndpointsV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_endpoint")
+                                 rules=["identity:create_endpoint"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd127')
     def test_create_endpoint(self):
         service = self.setup_test_service()
@@ -31,7 +31,7 @@
             self.setup_test_endpoint(service=service)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_endpoint")
+                                 rules=["identity:update_endpoint"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd128')
     def test_update_endpoint(self):
         endpoint = self.setup_test_endpoint()
@@ -43,7 +43,7 @@
                 url=new_url)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_endpoint")
+                                 rules=["identity:delete_endpoint"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd129')
     def test_delete_endpoint(self):
         endpoint = self.setup_test_endpoint()
@@ -52,7 +52,7 @@
             self.endpoints_client.delete_endpoint(endpoint['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_endpoint")
+                                 rules=["identity:get_endpoint"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd130')
     def test_show_endpoint(self):
         endpoint = self.setup_test_endpoint()
@@ -61,7 +61,7 @@
             self.endpoints_client.show_endpoint(endpoint['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_endpoints")
+                                 rules=["identity:list_endpoints"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd131')
     def test_list_endpoints(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_groups_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_groups_rbac.py
index 6e58289..be49d84 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_groups_rbac.py
@@ -58,14 +58,14 @@
         return endpoint_group['id']
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_endpoint_group")
+                                 rules=["identity:create_endpoint_group"])
     @decorators.idempotent_id('b4765906-52ec-477b-b441-a8508ced68e3')
     def test_create_endpoint_group(self):
         with self.rbac_utils.override_role(self):
             self._create_endpoint_group(ignore_not_found=True)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_endpoint_groups")
+                                 rules=["identity:list_endpoint_groups"])
     @decorators.idempotent_id('089aa3a7-ba1f-4f70-a1cf-f298a845058a')
     def test_list_endpoint_groups(self):
         with self.rbac_utils.override_role(self):
@@ -73,14 +73,14 @@
 
     @decorators.idempotent_id('5c16368d-1485-4c28-9803-db3fa3510623')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_endpoint_group")
+                                 rules=["identity:get_endpoint_group"])
     def test_check_endpoint_group(self):
         with self.rbac_utils.override_role(self):
             self.endpoint_groups_client.check_endpoint_group(
                 self.endpoint_group_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_endpoint_group")
+                                 rules=["identity:get_endpoint_group"])
     @decorators.idempotent_id('bd2b6fb8-661f-4255-84b2-50fea4a1dc61')
     def test_show_endpoint_group(self):
         with self.rbac_utils.override_role(self):
@@ -88,7 +88,7 @@
                 self.endpoint_group_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_endpoint_group")
+                                 rules=["identity:update_endpoint_group"])
     @decorators.idempotent_id('028b9198-ec35-4bd5-8f72-e23dfb7a0c8e')
     def test_update_endpoint_group(self):
         updated_name = data_utils.rand_name(
@@ -99,7 +99,7 @@
                 self.endpoint_group_id, name=updated_name)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_endpoint_group")
+                                 rules=["identity:delete_endpoint_group"])
     @decorators.idempotent_id('88cc105e-70d9-48ac-927e-200ef41e070c')
     def test_delete_endpoint_group(self):
         endpoint_group_id = self._create_endpoint_group(ignore_not_found=True)
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_projects_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_projects_rbac.py
index 1045b9b..17e918d 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_projects_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_ep_filter_projects_rbac.py
@@ -44,7 +44,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:add_endpoint_to_project")
+        rules=["identity:add_endpoint_to_project"])
     @decorators.idempotent_id('9199ec13-816d-4efe-b8b1-e1cd026b9747')
     def test_add_endpoint_to_project(self):
         # Adding endpoints to projects
@@ -53,7 +53,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:list_projects_for_endpoint")
+        rules=["identity:list_projects_for_endpoint"])
     @decorators.idempotent_id('f53dca42-ec8a-48e9-924b-0bbe6c99727f')
     def test_list_projects_for_endpoint(self):
         with self.rbac_utils.override_role(self):
@@ -62,7 +62,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_endpoint_in_project")
+        rules=["identity:check_endpoint_in_project"])
     @decorators.idempotent_id('0c1425eb-833c-4aa1-a21d-52ffa41fdc6a')
     def test_check_endpoint_in_project(self):
         self._add_endpoint_to_project()
@@ -72,7 +72,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:list_endpoints_for_project")
+        rules=["identity:list_endpoints_for_project"])
     @decorators.idempotent_id('5d86c659-c6ad-41e0-854e-3823e95c7cc2')
     def test_list_endpoints_in_project(self):
         with self.rbac_utils.override_role(self):
@@ -81,7 +81,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:remove_endpoint_from_project")
+        rules=["identity:remove_endpoint_from_project"])
     @decorators.idempotent_id('b4e21c10-4f47-427b-9b8a-f5b5601adfda')
     def test_remove_endpoint_from_project(self):
         self._add_endpoint_to_project(ignore_not_found=True)
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_groups_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_groups_rbac.py
index 06148d9..9814e3b 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_groups_rbac.py
@@ -30,14 +30,14 @@
         return (group['id'], user['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_group")
+                                 rules=["identity:create_group"])
     @decorators.idempotent_id('88377f51-9074-4d64-a22f-f8931d048c9a')
     def test_create_group(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_group()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_group")
+                                 rules=["identity:update_group"])
     @decorators.idempotent_id('790fb7be-a657-4a64-9b83-c43425cf180b')
     def test_update_group(self):
         group = self.setup_test_group()
@@ -48,7 +48,7 @@
             self.groups_client.update_group(group['id'], name=new_group_name)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_group")
+                                 rules=["identity:delete_group"])
     @decorators.idempotent_id('646b52da-2a5f-486a-afb0-51fdc86a6c12')
     def test_delete_group(self):
         group = self.setup_test_group()
@@ -57,7 +57,7 @@
             self.groups_client.delete_group(group['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_group")
+                                 rules=["identity:get_group"])
     @decorators.idempotent_id('d530f0ad-42b9-429b-ad05-e53ac95a040e')
     def test_show_group(self):
         group = self.setup_test_group()
@@ -66,14 +66,14 @@
             self.groups_client.show_group(group['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_groups")
+                                 rules=["identity:list_groups"])
     @decorators.idempotent_id('c4d0f76b-735f-4fd0-868b-0006bc420ff4')
     def test_list_groups(self):
         with self.rbac_utils.override_role(self):
             self.groups_client.list_groups()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:add_user_to_group")
+                                 rules=["identity:add_user_to_group"])
     @decorators.idempotent_id('fdd49b74-3ed3-4736-9f0e-9027a32017ac')
     def test_add_user_group(self):
         group = self.setup_test_group()
@@ -83,7 +83,7 @@
             self.groups_client.add_group_user(group['id'], user['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:remove_user_from_group")
+                                 rules=["identity:remove_user_from_group"])
     @decorators.idempotent_id('8a60d11c-7d2b-47e5-a0f3-9ea900ca66fe')
     def test_remove_user_group(self):
         group_id, user_id = self._create_user_and_add_to_new_group()
@@ -92,7 +92,7 @@
             self.groups_client.delete_group_user(group_id, user_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_users_in_group")
+                                 rules=["identity:list_users_in_group"])
     @decorators.idempotent_id('b3e394a7-079e-4a0d-a4ff-9b266293d1ee')
     def test_list_user_group(self):
         group = self.setup_test_group()
@@ -101,7 +101,7 @@
             self.groups_client.list_group_users(group['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_user_in_group")
+                                 rules=["identity:check_user_in_group"])
     @decorators.idempotent_id('d3603241-fd87-4a2d-94f9-f32469d1aaba')
     def test_check_user_group(self):
         group_id, user_id = self._create_user_and_add_to_new_group()
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_consumers_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_consumers_rbac.py
index f591e15..ecd534d 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_consumers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_consumers_rbac.py
@@ -34,14 +34,14 @@
         return consumer
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_consumer")
+                                 rules=["identity:create_consumer"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d970')
     def test_create_consumer(self):
         with self.rbac_utils.override_role(self):
             self._create_consumer()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_consumer")
+                                 rules=["identity:delete_consumer"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d971')
     def test_delete_consumer(self):
         consumer = self._create_consumer()
@@ -50,7 +50,7 @@
             self.consumers_client.delete_consumer(consumer['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_consumer")
+                                 rules=["identity:update_consumer"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d972')
     def test_update_consumer(self):
         consumer = self._create_consumer()
@@ -62,7 +62,7 @@
                                                   updated_description)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_consumer")
+                                 rules=["identity:get_consumer"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d973')
     def test_show_consumer(self):
         consumer = self._create_consumer()
@@ -71,7 +71,7 @@
             self.consumers_client.show_consumer(consumer['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_consumers")
+                                 rules=["identity:list_consumers"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d975')
     def test_list_consumers(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_tokens_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_tokens_rbac.py
index 13731d5..30b386f 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_tokens_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_oauth_tokens_rbac.py
@@ -80,7 +80,7 @@
         return access_key
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:authorize_request_token")
+                                 rules=["identity:authorize_request_token"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d976')
     def test_authorize_request_token(self):
         _, request_token = self._create_consumer_and_request_token()
@@ -91,7 +91,7 @@
                 self.role_ids)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_access_token")
+                                 rules=["identity:get_access_token"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d977')
     def test_get_access_token(self):
         access_token = self._create_access_token()
@@ -101,7 +101,7 @@
                                                      access_token)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_access_token_role")
+                                 rules=["identity:get_access_token_role"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d980')
     def test_get_access_token_role(self):
         access_token = self._create_access_token()
@@ -111,14 +111,14 @@
                 self.user_id, access_token, self.role_ids[0])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_access_tokens")
+                                 rules=["identity:list_access_tokens"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d979')
     def test_list_access_tokens(self):
         with self.rbac_utils.override_role(self):
             self.oauth_token_client.list_access_tokens(self.user_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_access_token_roles")
+                                 rules=["identity:list_access_token_roles"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d978')
     def test_list_access_token_roles(self):
         access_token = self._create_access_token()
@@ -128,7 +128,7 @@
                 self.user_id, access_token)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_access_token")
+                                 rules=["identity:delete_access_token"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d981')
     def test_revoke_access_token(self):
         access_token = self._create_access_token()
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_policies_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_policies_rbac.py
index a8c10ca..b0a3087 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_policies_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_policies_rbac.py
@@ -23,14 +23,14 @@
 class IdentityPoliciesV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_policy")
+                                 rules=["identity:create_policy"])
     @decorators.idempotent_id('de2f7ecb-fbf0-41f3-abf4-b97b5e082fd5')
     def test_create_policy(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_policy()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_policy")
+                                 rules=["identity:update_policy"])
     @decorators.idempotent_id('9cfed3c6-0b27-4d15-be67-e06e0cfb01b9')
     def test_update_policy(self):
         policy = self.setup_test_policy()
@@ -42,7 +42,7 @@
                                                type=updated_policy_type)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_policy")
+                                 rules=["identity:delete_policy"])
     @decorators.idempotent_id('dcd93f75-1e1b-4fbe-bee0-9c4c7b201735')
     def test_delete_policy(self):
         policy = self.setup_test_policy()
@@ -51,7 +51,7 @@
             self.policies_client.delete_policy(policy['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_policy")
+                                 rules=["identity:get_policy"])
     @decorators.idempotent_id('d7e415c2-945a-4504-9571-0e2d0dd8594b')
     def test_show_policy(self):
         policy = self.setup_test_policy()
@@ -60,7 +60,7 @@
             self.policies_client.show_policy(policy['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_policies")
+                                 rules=["identity:list_policies"])
     @decorators.idempotent_id('35a56161-4054-4237-8a78-7ce805dce202')
     def test_list_policies(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_policy_association_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_policy_association_rbac.py
index 2a69224..f56b6e4 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_policy_association_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_policy_association_rbac.py
@@ -58,7 +58,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:create_policy_association_for_endpoint")
+        rules=["identity:create_policy_association_for_endpoint"])
     @decorators.idempotent_id('1b3f4f62-4f4a-4d27-be27-9a113058597f')
     def test_update_policy_association_for_endpoint(self):
         with self.rbac_utils.override_role(self):
@@ -67,7 +67,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_policy_association_for_endpoint")
+        rules=["identity:check_policy_association_for_endpoint"])
     @decorators.idempotent_id('25ce8c89-e751-465c-8d35-52bacd774beb')
     def test_show_policy_association_for_endpoint(self):
         self._update_policy_association_for_endpoint(
@@ -78,7 +78,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:delete_policy_association_for_endpoint")
+        rules=["identity:delete_policy_association_for_endpoint"])
     @decorators.idempotent_id('95cad2d8-bcd0-4c4e-a8f7-cc80601e43a1')
     def test_delete_policy_association_for_endpoint(self):
         self._update_policy_association_for_endpoint(
@@ -89,7 +89,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:create_policy_association_for_service")
+        rules=["identity:create_policy_association_for_service"])
     @decorators.idempotent_id('57fb80fe-6ce2-4995-b710-4692b3fc3cdc')
     def test_update_policy_association_for_service(self):
         with self.rbac_utils.override_role(self):
@@ -98,7 +98,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_policy_association_for_service")
+        rules=["identity:check_policy_association_for_service"])
     @decorators.idempotent_id('5cbe285f-4888-4f98-978f-30210ff28b74')
     def test_show_policy_association_for_service(self):
         self._update_policy_association_for_service(
@@ -109,7 +109,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:delete_policy_association_for_service")
+        rules=["identity:delete_policy_association_for_service"])
     @decorators.idempotent_id('f754455c-02a4-4fb6-8c73-64ef453f955f')
     def test_delete_policy_association_for_service(self):
         self._update_policy_association_for_service(
@@ -120,7 +120,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:create_policy_association_for_region_and_service")
+        rules=["identity:create_policy_association_for_region_and_service"])
     @decorators.idempotent_id('54d2a93e-c84d-4079-8ea9-2fb227c262a1')
     def test_update_policy_association_for_region_and_service(self):
         with self.rbac_utils.override_role(self):
@@ -129,7 +129,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_policy_association_for_region_and_service")
+        rules=["identity:check_policy_association_for_region_and_service"])
     @decorators.idempotent_id('0763b780-52c1-47bc-9316-1fe12a2ab0bc')
     def test_show_policy_association_for_region_and_service(self):
         self._update_policy_association_for_region_and_service(
@@ -141,7 +141,7 @@
 
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:delete_policy_association_for_region_and_service")
+        rules=["identity:delete_policy_association_for_region_and_service"])
     @decorators.idempotent_id('9c956888-81d4-4a24-8203-bff7b8a7834c')
     def test_delete_policy_association_for_region_and_service(self):
         self._update_policy_association_for_region_and_service(
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_project_tags_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_project_tags_rbac.py
index e0be9cb..debc2e9 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_project_tags_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_project_tags_rbac.py
@@ -42,7 +42,7 @@
 
     @decorators.idempotent_id('acbd7b2d-0a4d-4990-9fab-eccad69d4238')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_project_tag")
+                                 rules=["identity:create_project_tag"])
     def test_update_project_tag(self):
         tag = data_utils.rand_name(self.__class__.__name__ + '-Tag')
         with self.rbac_utils.override_role(self):
@@ -50,14 +50,14 @@
 
     @decorators.idempotent_id('e122d7d1-bb6d-43af-b489-afa8c609b9ae')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_project_tags")
+                                 rules=["identity:list_project_tags"])
     def test_list_project_tags(self):
         with self.rbac_utils.override_role(self):
             self.project_tags_client.list_project_tags(self.project_id)
 
     @decorators.idempotent_id('716f9081-4626-4594-a82c-e7dc037464ac')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_project_tags")
+                                 rules=["identity:update_project_tags"])
     def test_update_all_project_tags(self):
         tags = [
             data_utils.rand_name(self.__class__.__name__ + '-Tag')
@@ -69,7 +69,7 @@
 
     @decorators.idempotent_id('974cb1da-d7d4-4863-99da-4a3f0c801729')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_project_tag")
+                                 rules=["identity:get_project_tag"])
     def test_check_project_tag_existence(self):
         tag = data_utils.rand_name(self.__class__.__name__ + '-Tag')
         self.project_tags_client.update_project_tag(self.project_id, tag)
@@ -80,7 +80,7 @@
 
     @decorators.idempotent_id('ffe0c8e1-f9eb-43c5-8097-1e938fc08e07')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_project_tag")
+                                 rules=["identity:delete_project_tag"])
     def test_delete_project_tag(self):
         tag = data_utils.rand_name(self.__class__.__name__ + '-Tag')
         self.project_tags_client.update_project_tag(self.project_id, tag)
@@ -90,7 +90,7 @@
 
     @decorators.idempotent_id('94d0ef63-e9e3-4287-9c5e-bd5464467d77')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_project_tags")
+                                 rules=["identity:delete_project_tags"])
     def test_delete_all_project_tags(self):
         with self.rbac_utils.override_role(self):
             self.project_tags_client.delete_all_project_tags(self.project_id)
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_projects_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_projects_rbac.py
index 0b394b4..e1e6f08 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_projects_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_projects_rbac.py
@@ -23,14 +23,14 @@
 class IdentityProjectV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_project")
+                                 rules=["identity:create_project"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d904')
     def test_create_project(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_project()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_project")
+                                 rules=["identity:update_project"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d905')
     def test_update_project(self):
         project = self.setup_test_project()
@@ -42,7 +42,7 @@
                                                 description=new_desc)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_project")
+                                 rules=["identity:delete_project"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d906')
     def test_delete_project(self):
         project = self.setup_test_project()
@@ -51,7 +51,7 @@
             self.projects_client.delete_project(project['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_project")
+                                 rules=["identity:get_project"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d907')
     def test_show_project(self):
         project = self.setup_test_project()
@@ -60,7 +60,7 @@
             self.projects_client.show_project(project['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_projects")
+                                 rules=["identity:list_projects"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d908')
     def test_list_projects(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_regions_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_regions_rbac.py
index 14b9de5..1d81319 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_regions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_regions_rbac.py
@@ -23,14 +23,14 @@
 class IdentityRegionsV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_region")
+                                 rules=["identity:create_region"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd119')
     def test_create_region(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_region()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_region")
+                                 rules=["identity:update_region"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd120')
     def test_update_region(self):
         region = self.setup_test_region()
@@ -42,7 +42,7 @@
                                               description=new_description)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_region")
+                                 rules=["identity:delete_region"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd121')
     def test_delete_region(self):
         region = self.setup_test_region()
@@ -51,7 +51,7 @@
             self.regions_client.delete_region(region['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_region")
+                                 rules=["identity:get_region"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd122')
     def test_show_region(self):
         region = self.setup_test_region()
@@ -60,7 +60,7 @@
             self.regions_client.show_region(region['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_regions")
+                                 rules=["identity:list_regions"])
     @decorators.idempotent_id('6bdaecd4-0843-4ed6-ab64-3a57ab0cd123')
     def test_list_regions(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_role_assignments_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_role_assignments_rbac.py
index 90cf255..3eabac8 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_role_assignments_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_role_assignments_rbac.py
@@ -23,7 +23,7 @@
 
     @decorators.idempotent_id('afe57adb-1b9c-43d9-84a9-f0cf4c94e416')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_role_assignments")
+                                 rules=["identity:list_role_assignments"])
     def test_list_role_assignments(self):
         with self.rbac_utils.override_role(self):
             self.role_assignments_client.list_role_assignments()
@@ -31,7 +31,7 @@
     @decorators.idempotent_id('36c7a990-857e-415c-8717-38d7200a9894')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:list_role_assignments_for_tree")
+        rules=["identity:list_role_assignments_for_tree"])
     def test_list_role_assignments_for_tree(self):
         project = self.setup_test_project()
 
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_roles_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_roles_rbac.py
index 099c702..8242194 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_roles_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_roles_rbac.py
@@ -34,14 +34,14 @@
         cls.user = cls.setup_test_user()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_role")
+                                 rules=["identity:create_role"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d904')
     def test_create_role(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_role()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_role")
+                                 rules=["identity:update_role"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d905')
     def test_update_role(self):
         new_role_name = data_utils.rand_name(
@@ -52,7 +52,7 @@
                                           name=new_role_name)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_role")
+                                 rules=["identity:delete_role"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d906')
     def test_delete_role(self):
         role = self.setup_test_role()
@@ -61,21 +61,21 @@
             self.roles_client.delete_role(role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_role")
+                                 rules=["identity:get_role"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d907')
     def test_show_role(self):
         with self.rbac_utils.override_role(self):
             self.roles_client.show_role(self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_roles")
+                                 rules=["identity:list_roles"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d908')
     def test_list_roles(self):
         with self.rbac_utils.override_role(self):
             self.roles_client.list_roles()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_grant")
+                                 rules=["identity:create_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d909')
     def test_create_user_role_on_project(self):
         with self.rbac_utils.override_role(self):
@@ -90,7 +90,7 @@
                         self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_grant")
+                                 rules=["identity:create_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90c')
     def test_create_group_role_on_project(self):
         with self.rbac_utils.override_role(self):
@@ -105,7 +105,7 @@
                         self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_grant")
+                                 rules=["identity:create_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90f')
     def test_create_user_role_on_domain(self):
         with self.rbac_utils.override_role(self):
@@ -120,7 +120,7 @@
                         self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_grant")
+                                 rules=["identity:create_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d912')
     def test_create_group_role_on_domain(self):
         with self.rbac_utils.override_role(self):
@@ -135,7 +135,7 @@
                         self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_grant")
+                                 rules=["identity:check_grant"])
     @decorators.idempotent_id('22921b1e-1a33-4026-bff9-f236d6dd149c')
     def test_check_user_role_existence_on_project(self):
         self.roles_client.create_user_role_on_project(
@@ -156,7 +156,7 @@
 
     @decorators.idempotent_id('92f8e67d-85bf-407d-9814-edd5664abc47')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_grant")
+                                 rules=["identity:check_grant"])
     def test_check_user_role_existence_on_domain(self):
         self.roles_client.create_user_role_on_domain(
             self.domain['id'],
@@ -176,7 +176,7 @@
 
     @decorators.idempotent_id('8738d3d2-8c84-4423-b36c-7c59eaa08b73')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_grant")
+                                 rules=["identity:check_grant"])
     def test_check_role_from_group_on_project_existence(self):
         self.roles_client.create_group_role_on_project(
             self.project['id'],
@@ -196,7 +196,7 @@
 
     @decorators.idempotent_id('e7d73bd0-cf5e-4c0c-9c93-cf53e23232d6')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_grant")
+                                 rules=["identity:check_grant"])
     def test_check_role_from_group_on_domain_existence(self):
         self.roles_client.create_group_role_on_domain(
             self.domain['id'],
@@ -215,7 +215,7 @@
                 self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:revoke_grant")
+                                 rules=["identity:revoke_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90a')
     def test_delete_role_from_user_on_project(self):
         self.roles_client.create_user_role_on_project(
@@ -235,7 +235,7 @@
                 self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:revoke_grant")
+                                 rules=["identity:revoke_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90d')
     def test_delete_role_from_group_on_project(self):
         self.roles_client.create_group_role_on_project(
@@ -255,7 +255,7 @@
                 self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:revoke_grant")
+                                 rules=["identity:revoke_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d910')
     def test_delete_role_from_user_on_domain(self):
         self.roles_client.create_user_role_on_domain(
@@ -275,7 +275,7 @@
                 self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:revoke_grant")
+                                 rules=["identity:revoke_grant"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d913')
     def test_delete_role_from_group_on_domain(self):
         self.roles_client.create_group_role_on_domain(
@@ -295,7 +295,7 @@
                 self.role['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_grants")
+                                 rules=["identity:list_grants"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90b')
     def test_list_user_roles_on_project(self):
         with self.rbac_utils.override_role(self):
@@ -304,7 +304,7 @@
                 self.user['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_grants")
+                                 rules=["identity:list_grants"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d90e')
     def test_list_group_roles_on_project(self):
         with self.rbac_utils.override_role(self):
@@ -313,7 +313,7 @@
                 self.group['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_grants")
+                                 rules=["identity:list_grants"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d911')
     def test_list_user_roles_on_domain(self):
         with self.rbac_utils.override_role(self):
@@ -322,7 +322,7 @@
                 self.user['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_grants")
+                                 rules=["identity:list_grants"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1395-080044d0d914')
     def test_list_group_roles_on_domain(self):
         with self.rbac_utils.override_role(self):
@@ -332,7 +332,7 @@
 
     @decorators.idempotent_id('2aef3eaa-8156-4962-a01d-c9bb0e499e15')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_implied_role")
+                                 rules=["identity:create_implied_role"])
     def test_create_role_inference_rule(self):
         with self.rbac_utils.override_role(self):
             self.roles_client.create_role_inference_rule(
@@ -342,7 +342,7 @@
 
     @decorators.idempotent_id('83f997b2-55c4-4894-b1f2-e175b19d1fa5')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_implied_role")
+                                 rules=["identity:get_implied_role"])
     def test_show_role_inference_rule(self):
         self.roles_client.create_role_inference_rule(
             self.role['id'], self.implies_role['id'])
@@ -355,14 +355,14 @@
 
     @decorators.idempotent_id('f7bb39bf-0b06-468e-a8b0-60a4fb1f258d')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_implied_roles")
+                                 rules=["identity:list_implied_roles"])
     def test_list_role_inferences_rules(self):
         with self.rbac_utils.override_role(self):
             self.roles_client.list_role_inferences_rules(self.role['id'])
 
     @decorators.idempotent_id('eca2d502-09bb-45cd-9773-bce2e7bcddd1')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:check_implied_role")
+                                 rules=["identity:check_implied_role"])
     def test_check_role_inference_rule(self):
         self.roles_client.create_role_inference_rule(
             self.role['id'], self.implies_role['id'])
@@ -375,7 +375,7 @@
 
     @decorators.idempotent_id('13a5db1e-dd4a-4ca1-81ec-d5452aaaf54b')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_implied_role")
+                                 rules=["identity:delete_implied_role"])
     def test_delete_role_inference_rule(self):
         self.roles_client.create_role_inference_rule(
             self.role['id'], self.implies_role['id'])
@@ -389,7 +389,7 @@
 
     @decorators.idempotent_id('05869f2b-4dd4-425a-905e-eec9a6f06374')
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_role_inference_rules")
+                                 rules=["identity:list_role_inference_rules"])
     def test_list_all_role_inference_rules(self):
         with self.rbac_utils.override_role(self):
             self.roles_client.list_all_role_inference_rules()
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_services_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_services_rbac.py
index 6ab17ff..41ba5ba 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_services_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_services_rbac.py
@@ -23,14 +23,14 @@
 class IdentitySericesV3RbacTest(rbac_base.BaseIdentityV3RbacTest):
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_service")
+                                 rules=["identity:create_service"])
     @decorators.idempotent_id('9a4bb317-f0bb-4005-8df0-4b672885b7c8')
     def test_create_service(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_service()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_service")
+                                 rules=["identity:update_service"])
     @decorators.idempotent_id('b39447d1-2cf6-40e5-a899-46f287f2ecf0')
     def test_update_service(self):
         service = self.setup_test_service()
@@ -43,7 +43,7 @@
                                                 type=service['type'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_service")
+                                 rules=["identity:delete_service"])
     @decorators.idempotent_id('177b991a-438d-4bef-8e9f-9c6cc5a1c9e8')
     def test_delete_service(self):
         service = self.setup_test_service()
@@ -52,7 +52,7 @@
             self.services_client.delete_service(service['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_service")
+                                 rules=["identity:get_service"])
     @decorators.idempotent_id('d89a9ac6-cd53-428d-84c0-5bc71f4a432d')
     def test_show_service(self):
         service = self.setup_test_service()
@@ -61,7 +61,7 @@
             self.services_client.show_service(service['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_services")
+                                 rules=["identity:list_services"])
     @decorators.idempotent_id('706e6bea-3385-4718-919c-0b5121395806')
     def test_list_services(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_negative_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_negative_rbac.py
index da5d4cd..c1c2934 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_negative_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_negative_rbac.py
@@ -43,7 +43,7 @@
     @decorators.attr(type=['negative'])
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:validate_token",
+        rules=["identity:validate_token"],
         extra_target_data={
             "target.token.user_id":
             "os_alt.auth_provider.credentials.user_id"
@@ -62,7 +62,7 @@
     @decorators.attr(type=['negative'])
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:revoke_token",
+        rules=["identity:revoke_token"],
         extra_target_data={
             "target.token.user_id":
             "os_alt.auth_provider.credentials.user_id"
@@ -81,7 +81,7 @@
     @decorators.attr(type=['negative'])
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_token",
+        rules=["identity:check_token"],
         extra_target_data={
             "target.token.user_id":
             "os_alt.auth_provider.credentials.user_id"
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_rbac.py
index 23ee768..a648774 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_tokens_rbac.py
@@ -30,7 +30,7 @@
     @decorators.idempotent_id('201e2fe5-2023-4bce-9189-78b51520a91e')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:validate_token",
+        rules=["identity:validate_token"],
         extra_target_data={
             "target.token.user_id":
             "os_primary.auth_provider.credentials.user_id"
@@ -43,7 +43,7 @@
     @decorators.idempotent_id('42a299db-fe0a-4ea0-9824-0bfd13155886')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:revoke_token",
+        rules=["identity:revoke_token"],
         extra_target_data={
             "target.token.user_id":
             "os_primary.auth_provider.credentials.user_id"
@@ -56,7 +56,7 @@
     @decorators.idempotent_id('3554d218-8cd6-4730-a1b2-0e22f9b78f45')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:check_token",
+        rules=["identity:check_token"],
         extra_target_data={
             "target.token.user_id":
             "os_primary.auth_provider.credentials.user_id"
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_trusts_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_trusts_rbac.py
index 91dbb53..985b992 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_trusts_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_trusts_rbac.py
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('7ab595a7-9b71-45fe-91d8-2793b0292f72')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:create_trust",
+        rules=["identity:create_trust"],
         extra_target_data={
             "trust.trustor_user_id": "os_primary.credentials.user_id"
         })
@@ -78,7 +78,7 @@
     @decorators.attr(type=['negative'])
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:create_trust",
+        rules=["identity:create_trust"],
         extra_target_data={
             "trust.trustor_user_id": "os_alt.credentials.user_id"
         })
@@ -94,7 +94,7 @@
     @decorators.idempotent_id('d9a6fd06-08f6-462c-a86c-ce009adf1230')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:delete_trust")
+        rules=["identity:delete_trust"])
     def test_delete_trust(self):
         trust = self.setup_test_trust(trustor_user_id=self.trustor_user_id,
                                       trustee_user_id=self.trustee_user_id)
@@ -105,7 +105,7 @@
     @decorators.idempotent_id('f2e32896-bf66-4f4e-89cf-e7fba0ef1f38')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:list_trusts")
+        rules=["identity:list_trusts"])
     def test_list_trusts(self):
         with self.rbac_utils.override_role(self):
             self.trusts_client.list_trusts(
@@ -114,7 +114,7 @@
     @decorators.idempotent_id('3c9ff92f-a73e-4f9b-8865-e017f38c70f5')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:list_roles_for_trust")
+        rules=["identity:list_roles_for_trust"])
     def test_list_roles_for_trust(self):
         with self.rbac_utils.override_role(self):
             self.trusts_client.list_trust_roles(self.trust['id'])
@@ -122,7 +122,7 @@
     @decorators.idempotent_id('3bb4f97b-cecd-4c7d-ad10-b88ee6c5d573')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:get_role_for_trust")
+        rules=["identity:get_role_for_trust"])
     def test_show_trust_role(self):
         with self.rbac_utils.override_role(self):
             self.trusts_client.show_trust_role(
@@ -131,7 +131,7 @@
     @decorators.idempotent_id('0184e0fb-641e-4b52-ab73-81c1ce6ca5c1')
     @rbac_rule_validation.action(
         service="keystone",
-        rule="identity:get_trust")
+        rules=["identity:get_trust"])
     def test_show_trust(self):
         with self.rbac_utils.override_role(self):
             self.trusts_client.show_trust(self.trust['id'])
diff --git a/patrole_tempest_plugin/tests/api/identity/v3/test_users_rbac.py b/patrole_tempest_plugin/tests/api/identity/v3/test_users_rbac.py
index bd97535..c633bb8 100644
--- a/patrole_tempest_plugin/tests/api/identity/v3/test_users_rbac.py
+++ b/patrole_tempest_plugin/tests/api/identity/v3/test_users_rbac.py
@@ -28,14 +28,14 @@
         cls.default_user_id = cls.os_primary.credentials.user_id
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:create_user")
+                                 rules=["identity:create_user"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d904')
     def test_create_user(self):
         with self.rbac_utils.override_role(self):
             self.setup_test_user()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:update_user")
+                                 rules=["identity:update_user"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d905')
     def test_update_user(self):
         user = self.setup_test_user()
@@ -48,7 +48,7 @@
                                           email=new_email)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:delete_user")
+                                 rules=["identity:delete_user"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d906')
     def test_delete_user(self):
         user = self.setup_test_user()
@@ -57,28 +57,28 @@
             self.users_client.delete_user(user['id'])
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_users")
+                                 rules=["identity:list_users"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d907')
     def test_list_users(self):
         with self.rbac_utils.override_role(self):
             self.users_client.list_users()
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:get_user")
+                                 rules=["identity:get_user"])
     @decorators.idempotent_id('0f148510-63bf-11e6-4522-080044d0d908')
     def test_show_own_user(self):
         with self.rbac_utils.override_role(self):
             self.users_client.show_user(self.default_user_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_groups_for_user")
+                                 rules=["identity:list_groups_for_user"])
     @decorators.idempotent_id('bd5946d4-46d2-423d-a800-a3e7aabc18b3')
     def test_list_own_user_group(self):
         with self.rbac_utils.override_role(self):
             self.users_client.list_user_groups(self.default_user_id)
 
     @rbac_rule_validation.action(service="keystone",
-                                 rule="identity:list_user_projects")
+                                 rules=["identity:list_user_projects"])
     @decorators.idempotent_id('0f148510-63bf-11e6-1564-080044d0d909')
     def test_list_own_user_projects(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/image/test_image_namespace_objects_rbac.py b/patrole_tempest_plugin/tests/api/image/test_image_namespace_objects_rbac.py
index 3ad5c74..24e5806 100644
--- a/patrole_tempest_plugin/tests/api/image/test_image_namespace_objects_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_image_namespace_objects_rbac.py
@@ -24,7 +24,7 @@
 class ImageNamespacesObjectsRbacTest(rbac_base.BaseV2ImageRbacTest):
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_object")
+                                 rules=["add_metadef_object"])
     @decorators.idempotent_id("772156f2-e33d-432e-8521-12385746c2f0")
     def test_create_metadef_object_in_namespace(self):
         """Create Metadef Object Namespace Test
@@ -45,7 +45,7 @@
                         namespace['namespace'], object_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_objects")
+                                 rules=["get_metadef_objects"])
     @decorators.idempotent_id("48b50ecb-237d-4909-be62-b6a05c47b64d")
     def test_list_metadef_objects_in_namespace(self):
         """List Metadef Object Namespace Test
@@ -59,7 +59,7 @@
                 namespace['namespace'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_metadef_object")
+                                 rules=["modify_metadef_object"])
     @decorators.idempotent_id("cd130b1d-89fa-479c-a90e-498d895fb455")
     def test_update_metadef_object_in_namespace(self):
         """Update Metadef Object Namespace Test
@@ -83,7 +83,7 @@
                 namespace['namespace'], object_name, name=new_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_object")
+                                 rules=["get_metadef_object"])
     @decorators.idempotent_id("93c61420-5b80-4a0e-b6f3-4ccc6e90b865")
     def test_show_metadef_object_in_namespace(self):
         """Show Metadef Object Namespace Test
diff --git a/patrole_tempest_plugin/tests/api/image/test_image_namespace_property_rbac.py b/patrole_tempest_plugin/tests/api/image/test_image_namespace_property_rbac.py
index 75cf66d..1059450 100644
--- a/patrole_tempest_plugin/tests/api/image/test_image_namespace_property_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_image_namespace_property_rbac.py
@@ -29,7 +29,7 @@
         cls.resource_name = body['resource_types'][0]['name']
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_property")
+                                 rules=["add_metadef_property"])
     @decorators.idempotent_id('383555ca-677b-43e9-b809-acc2b5a0176c')
     def test_add_md_properties(self):
         """Create Image Metadef Namespace Property Test
@@ -45,7 +45,7 @@
                 title=property_name, name=self.resource_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_properties")
+                                 rules=["get_metadef_properties"])
     @decorators.idempotent_id('d5177611-c2b5-4000-bd9c-1987af9222ea')
     def test_get_md_properties(self):
         """List Image Metadef Namespace Properties Test
@@ -58,7 +58,7 @@
                 namespace=namespace['namespace'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_property")
+                                 rules=["get_metadef_property"])
     @decorators.idempotent_id('cfeda2af-bcab-433e-80c7-4b40c774aed5')
     def test_get_md_property(self):
         """Get Image Metadef Namespace Property Test
@@ -77,7 +77,7 @@
                 namespace['namespace'], self.resource_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_metadef_property")
+                                 rules=["modify_metadef_property"])
     @decorators.idempotent_id('fdaf9363-4010-4f2f-8192-1b28f6b22e69')
     def test_modify_md_properties(self):
         """Modify Image Metadef Namespace Policy Test
diff --git a/patrole_tempest_plugin/tests/api/image/test_image_namespace_rbac.py b/patrole_tempest_plugin/tests/api/image/test_image_namespace_rbac.py
index 204263a..aade60f 100644
--- a/patrole_tempest_plugin/tests/api/image/test_image_namespace_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_image_namespace_rbac.py
@@ -24,7 +24,7 @@
 class ImageNamespacesRbacTest(rbac_base.BaseV2ImageRbacTest):
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_namespace")
+                                 rules=["add_metadef_namespace"])
     @decorators.idempotent_id('e0730ead-b824-4ffc-b774-9469df0e4da6')
     def test_create_metadef_namespace(self):
         """Create Image Metadef Namespace Test
@@ -43,7 +43,7 @@
             namespace_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_namespaces")
+                                 rules=["get_metadef_namespaces"])
     @decorators.idempotent_id('f0b12538-9047-489e-98a5-2d78f48ce789')
     def test_list_metadef_namespaces(self):
         """List Image Metadef Namespace Test
@@ -54,7 +54,7 @@
             self.namespaces_client.list_namespaces()
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_metadef_namespace")
+                                 rules=["modify_metadef_namespace"])
     @decorators.idempotent_id('72c14a7e-927d-4f1a-9e1f-25475552922b')
     def test_modify_metadef_namespace(self):
         """Modify Image Metadef Namespace Test
diff --git a/patrole_tempest_plugin/tests/api/image/test_image_namespace_tags_rbac.py b/patrole_tempest_plugin/tests/api/image/test_image_namespace_tags_rbac.py
index 1a85b74..bc387ee 100644
--- a/patrole_tempest_plugin/tests/api/image/test_image_namespace_tags_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_image_namespace_tags_rbac.py
@@ -67,14 +67,14 @@
 
     @decorators.idempotent_id('50bedccb-9d0b-4138-8d95-31a89250edf6')
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_tag")
+                                 rules=["add_metadef_tag"])
     def test_create_namespace_tag(self):
         with self.rbac_utils.override_role(self):
             self._create_namespace_tag()
 
     @decorators.idempotent_id('4acf70cc-05da-4b1e-87b2-d5e4475164e7')
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_tag")
+                                 rules=["get_metadef_tag"])
     def test_show_namespace_tag(self):
         tag_name = self._create_namespace_tag()
         with self.rbac_utils.override_role(self):
@@ -83,7 +83,7 @@
 
     @decorators.idempotent_id('01593828-3edb-461e-8abc-8fdeb3927e37')
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_metadef_tag")
+                                 rules=["modify_metadef_tag"])
     def test_update_namespace_tag(self):
         tag_name = self._create_namespace_tag()
         updated_tag_name = data_utils.rand_name(
@@ -95,14 +95,14 @@
 
     @decorators.idempotent_id('20ffaf76-ebdc-4267-a1ad-194346f5cc91')
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_tags")
+                                 rules=["add_metadef_tags"])
     def test_create_namespace_tags(self):
         with self.rbac_utils.override_role(self):
             self._create_namespace_tag(multiple=True)
 
     @decorators.idempotent_id('d37c1501-e787-449d-89b3-754a942a459a')
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_tags")
+                                 rules=["get_metadef_tags"])
     def test_list_namespace_tags(self):
         with self.rbac_utils.override_role(self):
             self.namespace_tags_client.list_namespace_tags(self.namespace)
diff --git a/patrole_tempest_plugin/tests/api/image/test_image_resource_types_rbac.py b/patrole_tempest_plugin/tests/api/image/test_image_resource_types_rbac.py
index 7b03158..94f9cd4 100644
--- a/patrole_tempest_plugin/tests/api/image/test_image_resource_types_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_image_resource_types_rbac.py
@@ -36,7 +36,7 @@
             cls.namespaces_client.delete_namespace, cls.namespace_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="list_metadef_resource_types")
+                                 rules=["list_metadef_resource_types"])
     @decorators.idempotent_id('0416fc4d-cfdc-447b-88b6-d9f1dd0382f7')
     def test_list_metadef_resource_types(self):
         """List Metadef Resource Type Image Test
@@ -47,7 +47,7 @@
             self.resource_types_client.list_resource_types()
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_metadef_resource_type")
+                                 rules=["get_metadef_resource_type"])
     @decorators.idempotent_id('3698d53c-71ae-4803-a2c3-c272c054f25c')
     def test_get_metadef_resource_type(self):
         """Get Metadef Resource Type Image Test
@@ -58,8 +58,9 @@
             self.resource_types_client.list_resource_type_association(
                 self.namespace_name)
 
-    @rbac_rule_validation.action(service="glance",
-                                 rule="add_metadef_resource_type_association")
+    @rbac_rule_validation.action(
+        service="glance",
+        rules=["add_metadef_resource_type_association"])
     @decorators.idempotent_id('ef9fbc60-3e28-4164-a25c-d30d892f7939')
     def test_add_metadef_resource_type(self):
         type_name = data_utils.rand_name()
diff --git a/patrole_tempest_plugin/tests/api/image/test_images_member_rbac.py b/patrole_tempest_plugin/tests/api/image/test_images_member_rbac.py
index 4b5fd08..656703a 100644
--- a/patrole_tempest_plugin/tests/api/image/test_images_member_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_images_member_rbac.py
@@ -36,7 +36,7 @@
         cls.image_member_client = cls.os_primary.image_member_client_v2
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_member")
+                                 rules=["add_member"])
     @decorators.idempotent_id('b1b85ace-6484-11e6-881e-080027d0d606')
     def test_add_image_member(self):
 
@@ -51,7 +51,7 @@
                 image_id, member=self.alt_tenant_id)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="delete_member")
+                                 rules=["delete_member"])
     @decorators.idempotent_id('ba075234-6484-11e6-881e-080027d0d606')
     def test_delete_image_member(self):
 
@@ -88,7 +88,7 @@
                                                        self.alt_tenant_id)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_member")
+                                 rules=["modify_member"])
     @decorators.idempotent_id('ca448bb2-6484-11e6-881e-080027d0d606')
     def test_update_image_member(self):
 
@@ -110,7 +110,7 @@
                 status='pending')
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_members")
+                                 rules=["get_members"])
     @decorators.idempotent_id('d0a2dc20-6484-11e6-881e-080027d0d606')
     def test_list_image_members(self):
 
diff --git a/patrole_tempest_plugin/tests/api/image/test_images_rbac.py b/patrole_tempest_plugin/tests/api/image/test_images_rbac.py
index e97e803..aa96112 100644
--- a/patrole_tempest_plugin/tests/api/image/test_images_rbac.py
+++ b/patrole_tempest_plugin/tests/api/image/test_images_rbac.py
@@ -42,7 +42,7 @@
         return self.image_client.store_image_file(image_id, image_file)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="add_image")
+                                 rules=["add_image"])
     @decorators.idempotent_id('0f148510-63bf-11e6-b348-080027d0d606')
     def test_create_image(self):
 
@@ -54,7 +54,7 @@
             self._create_image()
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="upload_image")
+                                 rules=["upload_image"])
     @decorators.idempotent_id('fdc0c7e2-ad58-4c5a-ba9d-1f6046a5b656')
     def test_upload_image(self):
 
@@ -69,7 +69,7 @@
 
     @decorators.idempotent_id('f0c268f3-cb51-49aa-9bd5-d30cf647322f')
     @rbac_rule_validation.action(service="glance",
-                                 rule="download_image")
+                                 rules=["download_image"])
     def test_download_image(self):
 
         """Download Image Test
@@ -83,7 +83,7 @@
             self.image_client.show_image_file(image['id'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="delete_image")
+                                 rules=["delete_image"])
     @decorators.idempotent_id('3b5c341e-645b-11e6-ac4f-080027d0d606')
     def test_delete_image(self):
 
@@ -98,7 +98,7 @@
         self.image_client.wait_for_resource_deletion(image['id'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_image")
+                                 rules=["get_image"])
     @decorators.idempotent_id('3085c7c6-645b-11e6-ac4f-080027d0d606')
     def test_show_image(self):
 
@@ -112,7 +112,7 @@
             self.image_client.show_image(image['id'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="get_images")
+                                 rules=["get_images"])
     @decorators.idempotent_id('bf1a4e94-645b-11e6-ac4f-080027d0d606')
     def test_list_images(self):
 
@@ -124,7 +124,7 @@
             self.image_client.list_images()['images']
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_image")
+                                 rules=["modify_image"])
     @decorators.idempotent_id('32ecf48c-645e-11e6-ac4f-080027d0d606')
     def test_update_image(self):
 
@@ -142,7 +142,7 @@
 
     @decorators.idempotent_id('244050d9-1b9a-446a-b3c5-f26f3ba8eb75')
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_image")
+                                 rules=["modify_image"])
     def test_create_image_tag(self):
 
         """Create image tag
@@ -158,7 +158,7 @@
 
     @decorators.idempotent_id('c4a0bf9c-b78b-48c6-a31f-72c95f943c6e')
     @rbac_rule_validation.action(service="glance",
-                                 rule="modify_image")
+                                 rules=["modify_image"])
     def test_delete_image_tag(self):
 
         """Delete image tag
@@ -173,7 +173,7 @@
             self.image_client.delete_image_tag(image['id'], tag_name)
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="publicize_image")
+                                 rules=["publicize_image"])
     @decorators.idempotent_id('0ea4809c-6461-11e6-ac4f-080027d0d606')
     def test_publicize_image(self):
 
@@ -186,7 +186,7 @@
 
     @decorators.idempotent_id('0f2d8427-134a-4d3c-a102-5fcdf5443d09')
     @rbac_rule_validation.action(service="glance",
-                                 rule="communitize_image")
+                                 rules=["communitize_image"])
     def test_communitize_image(self):
 
         """Communitize Image Test
@@ -197,7 +197,7 @@
             self._create_image(visibility='community')
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="deactivate")
+                                 rules=["deactivate"])
     @decorators.idempotent_id('b488458c-65df-11e6-9947-080027824017')
     def test_deactivate_image(self):
 
@@ -212,7 +212,7 @@
             self.image_client.deactivate_image(image['id'])
 
     @rbac_rule_validation.action(service="glance",
-                                 rule="reactivate")
+                                 rules=["reactivate"])
     @decorators.idempotent_id('d3fa28b8-65df-11e6-9947-080027824017')
     def test_reactivate_image(self):
 
diff --git a/patrole_tempest_plugin/tests/api/network/test_agents_rbac.py b/patrole_tempest_plugin/tests/api/network/test_agents_rbac.py
index 9d7adc4..c778d9c 100644
--- a/patrole_tempest_plugin/tests/api/network/test_agents_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_agents_rbac.py
@@ -100,7 +100,7 @@
 
     @decorators.idempotent_id('5d2bbdbc-40a5-43d2-828a-84dc93fcc453')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_l3-routers")
+                                 rules=["get_l3-routers"])
     def test_list_routers_on_l3_agent(self):
         """List routers on L3 agent test.
 
@@ -111,7 +111,7 @@
 
     @decorators.idempotent_id('466b2a10-8747-4c09-855a-bd90a1c86ce7')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_l3-router")
+                                 rules=["create_l3-router"])
     def test_create_router_on_l3_agent(self):
         """Create router on L3 agent test.
 
@@ -127,7 +127,7 @@
 
     @decorators.idempotent_id('8138cfc9-3e48-4a34-adf6-894077aa1be4')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_l3-router")
+                                 rules=["delete_l3-router"])
     def test_delete_router_from_l3_agent(self):
         """Delete router from L3 agent test.
 
@@ -193,7 +193,7 @@
 
     @decorators.idempotent_id('dc84087b-4c2a-4878-8ed0-40370e19da17')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_dhcp-networks")
+                                 rules=["get_dhcp-networks"])
     def test_list_networks_hosted_by_one_dhcp_agent(self):
         """List networks hosted by one DHCP agent test.
 
@@ -205,7 +205,7 @@
 
     @decorators.idempotent_id('14e014ac-f355-46d3-b6d8-98f2c9ec1610')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_dhcp-network")
+                                 rules=["create_dhcp-network"])
     def test_add_dhcp_agent_to_network(self):
         """Add DHCP agent to network test.
 
@@ -221,7 +221,7 @@
 
     @decorators.idempotent_id('937a4302-4b49-407d-9980-5843d7badc38')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="delete_dhcp-network")
+                                 rules=["delete_dhcp-network"])
     def test_delete_network_from_dhcp_agent(self):
         """Delete DHCP agent from network test.
 
@@ -255,7 +255,7 @@
 
     @decorators.idempotent_id('5d2bbdbc-40a5-43d2-828a-84dc93bcd321')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_l3-agents")
+                                 rules=["get_l3-agents"])
     def test_list_l3_agents_on_router(self):
         """List L3 agents on router test.
 
diff --git a/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py b/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
index 8a02149..336490a 100644
--- a/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_floating_ips_rbac.py
@@ -63,7 +63,7 @@
         return floating_ip
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_floatingip")
+                                 rules=["create_floatingip"])
     @decorators.idempotent_id('f8f7474c-b8a5-4174-af84-73097d6ced38')
     def test_create_floating_ip(self):
         """Create floating IP.
diff --git a/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py b/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
index db099a1..bf49053 100644
--- a/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_metering_label_rules_rbac.py
@@ -63,7 +63,7 @@
         return label_rule
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_metering_label_rule")
+                                 rules=["create_metering_label_rule"])
     @decorators.idempotent_id('81e81776-9d41-4d5e-b5c4-59d5c54a31ad')
     def test_create_metering_label_rule(self):
         """Create metering label rule.
diff --git a/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py b/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
index 0e10f5b..ed6e316 100644
--- a/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_metering_labels_rbac.py
@@ -47,7 +47,7 @@
         return label
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_metering_label")
+                                 rules=["create_metering_label"])
     @decorators.idempotent_id('e8cfc8b8-c159-48f0-93b3-591625a02f8b')
     def test_create_metering_label(self):
         """Create metering label.
diff --git a/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py b/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
index 2e69f89..96ba378 100644
--- a/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_networks_rbac.py
@@ -97,7 +97,7 @@
         return updated_network
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_network")
+                                 rules=["create_network"])
     @decorators.idempotent_id('95b9baab-1ece-4e2b-89c8-8d671d974e54')
     def test_create_network(self):
 
@@ -447,7 +447,7 @@
     @utils.requires_ext(extension='dhcp_agent_scheduler', service='network')
     @decorators.idempotent_id('b524f19f-fbb4-4d11-a85d-03bfae17bf0e')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_dhcp-agents")
+                                 rules=["get_dhcp-agents"])
     def test_list_dhcp_agents_on_hosting_network(self):
 
         """List DHCP Agents on Hosting Network Test
diff --git a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
index 175d051..b65bd73 100644
--- a/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_ports_rbac.py
@@ -59,7 +59,7 @@
         return ip_list
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_port")
+                                 rules=["create_port"])
     @decorators.idempotent_id('0ec8c551-625c-4864-8a52-85baa7c40f22')
     def test_create_port(self):
 
diff --git a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
index 3d7631a..f850a3e 100644
--- a/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_routers_rbac.py
@@ -56,7 +56,7 @@
         return unused_ip[0]
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_router")
+                                 rules=["create_router"])
     @decorators.idempotent_id('acc5005c-bdb6-4192-bc9f-ece9035bb488')
     def test_create_router(self):
         """Create Router
diff --git a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
index 4536fdb..9112bf6 100644
--- a/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_security_groups_rbac.py
@@ -70,7 +70,7 @@
         return sec_group_rule
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_security_group")
+                                 rules=["create_security_group"])
     @decorators.idempotent_id('db7003ce-5717-4e5b-afc7-befa35e8c67f')
     def test_create_security_group(self):
 
@@ -116,7 +116,7 @@
                 description="test description")
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_security_group")
+                                 rules=["get_security_group"])
     @decorators.idempotent_id('fbaf8d96-ed3e-49af-b24c-5fb44f05bbb7')
     def test_list_security_groups(self):
 
@@ -129,7 +129,7 @@
             raise rbac_exceptions.RbacMalformedResponse(empty=True)
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_security_group_rule")
+                                 rules=["create_security_group_rule"])
     @decorators.idempotent_id('953d78df-00cd-416f-9cbd-b7cb4ea65772')
     def test_create_security_group_rule(self):
 
@@ -160,7 +160,7 @@
                 sec_group_rule['id'])
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_security_group_rule")
+                                 rules=["get_security_group_rule"])
     @decorators.idempotent_id('05739ab6-fa35-11e6-bc64-92361f002671')
     def test_list_security_group_rules(self):
 
diff --git a/patrole_tempest_plugin/tests/api/network/test_service_providers_rbac.py b/patrole_tempest_plugin/tests/api/network/test_service_providers_rbac.py
index fd85444..561a72c 100644
--- a/patrole_tempest_plugin/tests/api/network/test_service_providers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_service_providers_rbac.py
@@ -22,7 +22,7 @@
 class ServiceProvidersRbacTest(base.BaseNetworkRbacTest):
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_service_provider")
+                                 rules=["get_service_provider"])
     @decorators.idempotent_id('15f573b7-474a-4b37-8629-7fac86553ce5')
     def test_list_service_providers(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py b/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
index 62735d7..bc6b923 100644
--- a/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_subnetpools_rbac.py
@@ -53,7 +53,7 @@
         return subnetpool
 
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_subnetpool")
+                                 rules=["create_subnetpool"])
     @decorators.idempotent_id('1b5509fd-2c32-44a8-a786-1b6ca162dbd1')
     def test_create_subnetpool(self):
         """Create subnetpool.
diff --git a/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py b/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
index 93d79a9..9a5ebe4 100644
--- a/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
+++ b/patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py
@@ -39,7 +39,7 @@
 
     @decorators.idempotent_id('0481adeb-4301-44d5-851c-35910cc18a6b')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="create_subnet")
+                                 rules=["create_subnet"])
     def test_create_subnet(self):
         """Create subnet.
 
@@ -62,7 +62,7 @@
 
     @decorators.idempotent_id('e2ddc415-5cab-43f4-9b61-166aed65d637')
     @rbac_rule_validation.action(service="neutron",
-                                 rule="get_subnet")
+                                 rules=["get_subnet"])
     def test_list_subnets(self):
         """List subnets.
 
diff --git a/patrole_tempest_plugin/tests/api/volume/test_capabilities_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_capabilities_rbac.py
index 82b89ab..fa1157a 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_capabilities_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_capabilities_rbac.py
@@ -36,7 +36,7 @@
         cls.hosts_client = cls.os_primary.volume_hosts_v2_client
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:capabilities")
+                                 rules=["volume_extension:capabilities"])
     @decorators.idempotent_id('40928b74-2141-11e7-93ae-92361f002671')
     def test_show_back_end_capabilities(self):
         host = self.hosts_client.list_hosts()['hosts'][0]['host_name']
diff --git a/patrole_tempest_plugin/tests/api/volume/test_encryption_types_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_encryption_types_rbac.py
index 2ee80eb..0eb0244 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_encryption_types_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_encryption_types_rbac.py
@@ -69,7 +69,7 @@
     @decorators.idempotent_id('ffd94ce5-c24b-4b6c-84c9-c5aad8c3010c')
     @rbac_rule_validation.action(
         service="cinder",
-        rule=_CREATE_VOLUME_TYPE_ENCRYPTION)
+        rules=[_CREATE_VOLUME_TYPE_ENCRYPTION])
     def test_create_volume_type_encryption(self):
         vol_type_id = self.create_volume_type()['id']
         with self.rbac_utils.override_role(self):
@@ -81,7 +81,7 @@
     @decorators.idempotent_id('6599e72e-acef-4c0d-a9b2-463fca30d1da')
     @rbac_rule_validation.action(
         service="cinder",
-        rule=_DELETE_VOLUME_TYPE_ENCRYPTION)
+        rules=[_DELETE_VOLUME_TYPE_ENCRYPTION])
     def test_delete_volume_type_encryption(self):
         vol_type_id = self._create_volume_type_encryption()
         with self.rbac_utils.override_role(self):
@@ -90,7 +90,7 @@
     @decorators.idempotent_id('42da9fec-32fd-4dca-9242-8a53b2fed25a')
     @rbac_rule_validation.action(
         service="cinder",
-        rule=_UPDATE_VOLUME_TYPE_ENCRYPTION)
+        rules=[_UPDATE_VOLUME_TYPE_ENCRYPTION])
     def test_update_volume_type_encryption(self):
         vol_type_id = self._create_volume_type_encryption()
         with self.rbac_utils.override_role(self):
@@ -101,7 +101,7 @@
     @decorators.idempotent_id('1381a3dc-248f-4282-b231-c9399018c804')
     @rbac_rule_validation.action(
         service="cinder",
-        rule=_SHOW_VOLUME_TYPE_ENCRYPTION)
+        rules=[_SHOW_VOLUME_TYPE_ENCRYPTION])
     def test_show_volume_type_encryption(self):
         vol_type_id = self._create_volume_type_encryption()
         with self.rbac_utils.override_role(self):
@@ -110,7 +110,7 @@
     @decorators.idempotent_id('d4ed3cf8-52b2-4fa2-910d-e405361f0881')
     @rbac_rule_validation.action(
         service="cinder",
-        rule=_SHOW_VOLUME_TYPE_ENCRYPTION)
+        rules=[_SHOW_VOLUME_TYPE_ENCRYPTION])
     def test_show_encryption_specs_item(self):
         vol_type_id = self._create_volume_type_encryption()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/volume/test_group_snapshots_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_group_snapshots_rbac.py
index 73d7bf2..1d59f9b 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_group_snapshots_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_group_snapshots_rbac.py
@@ -89,7 +89,7 @@
     @decorators.idempotent_id('653df0e8-d90a-474a-a5ce-3c2339aff7ba')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:create_group_snapshot"
+        rules=["group:create_group_snapshot"]
     )
     def test_create_group_snapshot(self):
         with self.rbac_utils.override_role(self):
@@ -112,7 +112,7 @@
     @decorators.idempotent_id('8b966844-4421-4f73-940b-9157cb878331')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:get_group_snapshot"
+        rules=["group:get_group_snapshot"]
     )
     def test_show_group_snapshot_rbac(self):
         group_snapshot_name = data_utils.rand_name('group_snapshot')
@@ -125,7 +125,7 @@
     @decorators.idempotent_id('e9de6dae-1efb-47cd-a3a8-d1f4b8f9f3ff')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:get_all_group_snapshots"
+        rules=["group:get_all_group_snapshots"]
     )
     def test_list_group_snapshot_rbac(self):
         with self.rbac_utils.override_role(self):
@@ -134,7 +134,7 @@
     @decorators.idempotent_id('cf2e25ee-ca58-4ad6-b98d-33235c77db7b')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:delete_group_snapshot"
+        rules=["group:delete_group_snapshot"]
         )
     def test_delete_group_snapshot_rbac(self):
         group_snapshot_name = data_utils.rand_name('group_snapshot')
@@ -186,7 +186,7 @@
     @decorators.idempotent_id('3f0c842e-0c72-4f5e-a9c2-281070be3e2c')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:reset_group_snapshot_status"
+        rules=["group:reset_group_snapshot_status"]
         )
     def test_reset_group_snapshot_rbac(self):
         group_snapshot_name = data_utils.rand_name('group_snapshot')
diff --git a/patrole_tempest_plugin/tests/api/volume/test_group_type_specs.py b/patrole_tempest_plugin/tests/api/volume/test_group_type_specs.py
index a34a55d..9c41dfc 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_group_type_specs.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_group_type_specs.py
@@ -27,7 +27,7 @@
     @decorators.idempotent_id('b2859734-00ad-4a22-88ee-541698e90d12')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_specs"
+        rules=["group:group_types_specs"]
     )
     def test_group_type_specs_create(self):
         # Create new group type
@@ -47,7 +47,7 @@
     @decorators.idempotent_id('469d0253-aa13-423f-8264-231ac17effbf')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_specs"
+        rules=["group:group_types_specs"]
     )
     def test_group_type_specs_show(self):
         group_type = self.create_group_type()
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('2e706a4e-dec9-46bf-9426-1c5b6f3ce102')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_specs"
+        rules=["group:group_types_specs"]
     )
     def test_group_type_specs_update(self):
         group_type = self.create_group_type()
@@ -81,7 +81,7 @@
     @decorators.idempotent_id('fd5e332b-fb2c-4957-ace9-11d60ddd5472')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_specs"
+        rules=["group:group_types_specs"]
     )
     def test_group_type_specs_list(self):
         group_type = self.create_group_type()
@@ -92,7 +92,7 @@
     @decorators.idempotent_id('d9639a07-e441-4576-baf6-7ec732b16572')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_specs"
+        rules=["group:group_types_specs"]
     )
     def test_group_type_specs_delete(self):
         group_type = self.create_group_type()
diff --git a/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
index ecd193b..c117d23 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_groups_rbac.py
@@ -63,7 +63,7 @@
     @decorators.idempotent_id('43235328-66ae-424f-bc7f-f709c0ca268c')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:create")
+        rules=["group:create"])
     def test_create_group(self, name=None):
 
         group_name = name or data_utils.rand_name(
@@ -80,7 +80,7 @@
     @decorators.idempotent_id('9dc34a62-ae3e-439e-92b6-9389ea4c2863')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:get")
+        rules=["group:get"])
     def test_show_group(self):
         group = self._create_group(group_type=self.group_type_id,
                                    volume_types=[self.volume_type_id])
@@ -91,7 +91,7 @@
     @decorators.idempotent_id('db43841b-a173-4317-acfc-f83e4e48e4ee')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:get_all")
+        rules=["group:get_all"])
     def test_list_groups(self):
         with self.rbac_utils.override_role(self):
             self.groups_client.list_groups()['groups']
@@ -99,7 +99,7 @@
     @decorators.idempotent_id('5378da93-9c26-4ad4-b039-0555e2b8f668')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:get_all")
+        rules=["group:get_all"])
     def test_list_groups_with_details(self):
         with self.rbac_utils.override_role(self):
             self.groups_client.list_groups(detail=True)['groups']
@@ -107,7 +107,7 @@
     @decorators.idempotent_id('f499fc48-df83-4917-bf8d-783ebf6f080b')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:update")
+        rules=["group:update"])
     def test_update_group(self):
         group = self._create_group(group_type=self.group_type_id,
                                    volume_types=[self.volume_type_id])
@@ -119,7 +119,7 @@
     @decorators.idempotent_id('66fda391-5774-42a9-a018-80b34e57ab76')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:delete")
+        rules=["group:delete"])
     def test_delete_group(self):
 
         group = self._create_group(ignore_notfound=True,
@@ -146,7 +146,7 @@
     @decorators.idempotent_id('b849c1d4-3215-4f9d-b1e6-0aeb4b2b65ac')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:reset_status")
+        rules=["group:reset_status"])
     def test_reset_group_status(self):
         group = self._create_group(ignore_notfound=False,
                                    group_type=self.group_type_id,
@@ -166,7 +166,7 @@
     @decorators.idempotent_id('2820f12c-4681-4c7f-b28d-e6925637dff6')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_manage")
+        rules=["group:group_types_manage"])
     def test_create_group_type(self):
         with self.rbac_utils.override_role(self):
             self.create_group_type(ignore_notfound=True)
@@ -174,7 +174,7 @@
     @decorators.idempotent_id('f77f8156-4fc9-4f02-be15-8930f748e10c')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_manage")
+        rules=["group:group_types_manage"])
     def test_delete_group_type(self):
         group_type = self.create_group_type(ignore_notfound=True)
 
@@ -184,7 +184,7 @@
     @decorators.idempotent_id('67929954-4551-4d22-b15a-27fb6e56b711')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:group_types_manage")
+        rules=["group:group_types_manage"])
     def test_update_group_type(self):
         group_type = self.create_group_type()
         update_params = {
@@ -199,7 +199,7 @@
     @decorators.idempotent_id('a5f88c26-df7c-4f21-a3ae-7a4c2d6212b4')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:access_group_types_specs")
+        rules=["group:access_group_types_specs"])
     def test_create_group_type_group_specs(self):
         # TODO(felipemonteiro): Combine with ``test_create_group_type``
         # once multiple policy testing is supported. This policy is
@@ -214,7 +214,7 @@
     @decorators.idempotent_id('8d9e2831-24c3-47b7-a76a-2e563287f12f')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="group:access_group_types_specs")
+        rules=["group:access_group_types_specs"])
     def test_show_group_type(self):
         group_type = self.create_group_type()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
index aec5cb1..3127d83 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_limits_rbac.py
@@ -33,7 +33,7 @@
         '"limits_extension:used_limits" must be available in the cloud.')
     @decorators.idempotent_id('dab04510-5b86-4479-a633-6e496ff405af')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="limits_extension:used_limits")
+                                 rules=["limits_extension:used_limits"])
     def test_show_limits(self):
         # It is enough to check whether any of the following keys below
         # are in the response body under ['limits']['absolute'], but no harm
diff --git a/patrole_tempest_plugin/tests/api/volume/test_qos_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_qos_rbac.py
index a62bbda..5664bf9 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_qos_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_qos_rbac.py
@@ -39,31 +39,32 @@
         return qos_specs
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:create")
+        service="cinder", rules=["volume_extension:qos_specs_manage:create"])
     @decorators.idempotent_id('4f9f45f0-b379-4577-a279-cec3e917cbec')
     def test_create_qos_with_consumer(self):
         with self.rbac_utils.override_role(self):
             self._create_test_qos_specs()
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:delete")
+        service="cinder", rules=["volume_extension:qos_specs_manage:delete"])
     @decorators.idempotent_id('fbc8a77e-6b6d-45ae-bebe-c496eb8f06f7')
     def test_delete_qos_with_consumer(self):
         qos = self._create_test_qos_specs()
         with self.rbac_utils.override_role(self):
             self.qos_client.delete_qos(qos['id'])
 
-    @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:qos_specs_manage:get")
+    @rbac_rule_validation.action(
+        service="cinder",
+        rules=["volume_extension:qos_specs_manage:get"])
     @decorators.idempotent_id('22aff0dd-0343-408d-ae80-e77551956e14')
     def test_show_qos(self):
         qos = self._create_test_qos_specs()
         with self.rbac_utils.override_role(self):
             self.qos_client.show_qos(qos['id'])['qos_specs']
 
-    @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:"
-                                      "qos_specs_manage:get_all")
+    @rbac_rule_validation.action(
+        service="cinder",
+        rules=["volume_extension:qos_specs_manage:get_all"])
     @decorators.idempotent_id('ff1e98f3-d456-40a9-96d4-c7e4a55dcffa')
     def test_get_association_qos(self):
         qos = self._create_test_qos_specs()
@@ -76,14 +77,14 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:qos_specs_manage:get_all")
+        rules=["volume_extension:qos_specs_manage:get_all"])
     @decorators.idempotent_id('546b8bb1-04a4-4387-9506-a538a7f3cd6a')
     def test_list_qos(self):
         with self.rbac_utils.override_role(self):
             self.qos_client.list_qos()['qos_specs']
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:update")
+        service="cinder", rules=["volume_extension:qos_specs_manage:update"])
     @decorators.idempotent_id('89b630b7-c170-47c3-ac80-50ed425c2d98')
     def test_set_qos_key(self):
         qos = self._create_test_qos_specs()
@@ -92,7 +93,7 @@
                 qos['id'], iops_bytes='500')['qos_specs']
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:update")
+        service="cinder", rules=["volume_extension:qos_specs_manage:update"])
     @decorators.idempotent_id('6c50c837-de77-4dae-a2ec-30e05c62969c')
     def test_unset_qos_key(self):
         qos = self._create_test_qos_specs()
@@ -104,7 +105,7 @@
                                         'qos-key-unset', args=['iops_bytes'])
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:update")
+        service="cinder", rules=["volume_extension:qos_specs_manage:update"])
     @decorators.idempotent_id('2047b347-8bbe-405e-bf5a-c75a0d7e3930')
     def test_associate_qos(self):
         qos = self._create_test_qos_specs()
@@ -117,7 +118,7 @@
             self.qos_client.disassociate_qos, qos['id'], vol_type)
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:update")
+        service="cinder", rules=["volume_extension:qos_specs_manage:update"])
     @decorators.idempotent_id('f12aeca1-0c02-4f33-b805-014171e5b2d4')
     def test_disassociate_qos(self):
         qos = self._create_test_qos_specs()
@@ -132,7 +133,7 @@
                                         'disassociate', args=vol_type)
 
     @rbac_rule_validation.action(
-        service="cinder", rule="volume_extension:qos_specs_manage:update")
+        service="cinder", rules=["volume_extension:qos_specs_manage:update"])
     @decorators.idempotent_id('9f6e664d-a5d9-4e71-b122-73a3086be1b9')
     def test_disassociate_all_qos(self):
         qos = self._create_test_qos_specs()
diff --git a/patrole_tempest_plugin/tests/api/volume/test_quota_classes_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_quota_classes_rbac.py
index dace257..dcc67f6 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_quota_classes_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_quota_classes_rbac.py
@@ -39,7 +39,7 @@
 
     @decorators.idempotent_id('1a060def-2b43-4534-97f5-5eadbbe8c726')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quota_classes")
+                                 rules=["volume_extension:quota_classes"])
     def test_show_quota_class_set(self):
         with self.rbac_utils.override_role(self):
             self.quota_classes_client.show_quota_class_set(
@@ -47,7 +47,7 @@
 
     @decorators.idempotent_id('72159478-23a7-4c75-989f-6bac609eca62')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quota_classes")
+                                 rules=["volume_extension:quota_classes"])
     def test_update_quota_class_set(self):
         quota_class_set = self.quota_classes_client.show_quota_class_set(
             self.quota_name)['quota_class_set']
diff --git a/patrole_tempest_plugin/tests/api/volume/test_scheduler_stats_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_scheduler_stats_rbac.py
index a243587..efcfdaf 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_scheduler_stats_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_scheduler_stats_rbac.py
@@ -37,7 +37,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="scheduler_extension:scheduler_stats:get_pools")
+        rules=["scheduler_extension:scheduler_stats:get_pools"])
     @decorators.idempotent_id('5f800441-4d30-48ec-9e5b-0d55bc86acbb')
     def test_list_back_end_storage_pools(self):
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/volume/test_snapshot_manage_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_snapshot_manage_rbac.py
index d238045..e2887e0 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_snapshot_manage_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_snapshot_manage_rbac.py
@@ -51,7 +51,7 @@
     @decorators.idempotent_id('bd7d62f2-e485-4626-87ef-03b7f19ee1d0')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="snapshot_extension:snapshot_manage")
+        rules=["snapshot_extension:snapshot_manage"])
     def test_manage_snapshot_rbac(self):
         name = data_utils.rand_name(self.__class__.__name__ +
                                     '-Managed-Snapshot')
@@ -73,7 +73,7 @@
     @decorators.idempotent_id('4a2e8934-9c0b-434e-8f0b-e18b9aff126f')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="snapshot_extension:snapshot_unmanage")
+        rules=["snapshot_extension:snapshot_unmanage"])
     def test_unmanage_snapshot_rbac(self):
         with self.rbac_utils.override_role(self):
             self.snapshots_client.unmanage_snapshot(self.snapshot['id'])
diff --git a/patrole_tempest_plugin/tests/api/volume/test_snapshots_actions_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_snapshots_actions_rbac.py
index 65b7526..ed42b2d 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_snapshots_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_snapshots_actions_rbac.py
@@ -49,7 +49,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:snapshot_admin_actions:reset_status")
+        rules=["volume_extension:snapshot_admin_actions:reset_status"])
     @decorators.idempotent_id('ea430145-34ef-408d-b678-95d5ae5f46eb')
     def test_reset_snapshot_status(self):
         status = 'error'
@@ -61,7 +61,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:snapshot_admin_actions:force_delete")
+        rules=["volume_extension:snapshot_admin_actions:force_delete"])
     @decorators.idempotent_id('a8b0f7d8-4c00-4645-b8d5-33ab4eecc6cb')
     def test_snapshot_force_delete(self):
         temp_snapshot = self.create_snapshot(self.volume['id'])
@@ -73,7 +73,7 @@
     @decorators.idempotent_id('a95eab2a-c441-4609-9235-f7478627da88')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="snapshot_extension:snapshot_actions:update_snapshot_status")
+        rules=["snapshot_extension:snapshot_actions:update_snapshot_status"])
     def test_update_snapshot_status(self):
         status = 'creating'
         self.snapshots_client.reset_snapshot_status(
diff --git a/patrole_tempest_plugin/tests/api/volume/test_snapshots_metadata_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_snapshots_metadata_rbac.py
index 1c5fb2e..1141b7e 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_snapshots_metadata_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_snapshots_metadata_rbac.py
@@ -48,7 +48,7 @@
             self.snapshot_id, metadata)['metadata']
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_snapshot_metadata")
+                                 rules=["volume:get_snapshot_metadata"])
     @decorators.idempotent_id('f6912bb1-62e6-483d-bcd0-e98c1641f4c3')
     def test_get_snapshot_metadata(self):
         # Create volume and snapshot metadata
@@ -60,7 +60,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_tenant_attribute")
+        rules=["volume_extension:volume_tenant_attribute"])
     @decorators.idempotent_id('e2c73b00-0c19-4bb7-8c61-d84b1a223ed1')
     def test_get_snapshot_metadata_for_volume_tenant(self):
         # Create volume and snapshot metadata
@@ -72,7 +72,7 @@
 
     @decorators.idempotent_id('7ea597f6-c544-4b10-aab0-ff68f595fb06')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_snapshot_metadata")
+                                 rules=["volume:update_snapshot_metadata"])
     def test_update_snapshot_metadata(self):
         self._create_test_snapshot_metadata()
         with self.rbac_utils.override_role(self):
@@ -83,7 +83,7 @@
 
     @decorators.idempotent_id('93068d02-0131-4dd3-af16-fc40d7128d93')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_snapshot_metadata")
+                                 rules=["volume:get_snapshot_metadata"])
     def test_show_snapshot_metadata_item(self):
         self._create_test_snapshot_metadata()
         with self.rbac_utils.override_role(self):
@@ -92,7 +92,7 @@
 
     @decorators.idempotent_id('1f8f43e7-da31-4128-bb3c-73fc548650e3')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_snapshot_metadata")
+                                 rules=["volume:update_snapshot_metadata"])
     def test_update_snapshot_metadata_item(self):
         update_item = {"key3": "value3_update"}
         self._create_test_snapshot_metadata()
@@ -102,7 +102,7 @@
 
     @decorators.idempotent_id('3ec32516-f7cd-4f88-b78a-ddee67492071')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:delete_snapshot_metadata")
+                                 rules=["volume:delete_snapshot_metadata"])
     def test_delete_snapshot_metadata_item(self):
         self._create_test_snapshot_metadata()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/volume/test_user_messages_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_user_messages_rbac.py
index 56ee1e0..962a9b1 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_user_messages_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_user_messages_rbac.py
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('bf7f31a1-509b-4a7d-a8a8-ad6ce68229c7')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="message:get_all")
+        rules=["message:get_all"])
     def test_list_messages(self):
         with self.rbac_utils.override_role(self):
             self.messages_client.list_messages()['messages']
@@ -73,7 +73,7 @@
     @decorators.idempotent_id('9cc1ad1e-68a2-4407-8b60-ea77909bce08')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="message:get")
+        rules=["message:get"])
     def test_show_message(self):
         message_id = self._create_user_message()
 
@@ -83,7 +83,7 @@
     @decorators.idempotent_id('65ca7fb7-7f2c-443e-b144-ac86973a97be')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="message:delete")
+        rules=["message:delete"])
     def test_delete_message(self):
         message_id = self._create_user_message()
 
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_actions_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_actions_rbac.py
index a4fc3fd..2a5b9fe 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_actions_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_actions_rbac.py
@@ -76,7 +76,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:attach")
+        rules=["volume_extension:volume_actions:attach"])
     @decorators.idempotent_id('f97b10e4-2eed-4f8b-8632-71c02cb9fe42')
     def test_attach_volume_to_instance(self):
         server = self._create_server()
@@ -94,7 +94,7 @@
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:detach")
+        rules=["volume_extension:volume_actions:detach"])
     @decorators.idempotent_id('5a042f6a-688b-42e6-a02e-fe5c47b89b07')
     def test_detach_volume_from_instance(self):
         server = self._create_server()
@@ -107,7 +107,7 @@
             self.volumes_client, volume_id, 'available')
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_readonly_flag")
+                                 rules=["volume:update_readonly_flag"])
     @decorators.idempotent_id('2750717a-f250-4e41-9e09-02624aad6ff8')
     def test_volume_readonly_update(self):
         with self.rbac_utils.override_role(self):
@@ -118,7 +118,7 @@
 
     @decorators.idempotent_id('59b783c0-f4ef-430c-8a90-1bad97d4ec5c')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update")
+                                 rules=["volume:update"])
     def test_volume_set_bootable(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.set_bootable_volume(self.volume['id'],
@@ -132,7 +132,7 @@
     @decorators.idempotent_id('41566922-75a1-4484-99c7-9c8782ee99ac')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:reserve")
+        rules=["volume_extension:volume_actions:reserve"])
     def test_volume_reserve(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.reserve_volume(self.volume['id'])
@@ -145,14 +145,14 @@
     @decorators.idempotent_id('e5fa9564-77d9-4e57-b0c0-3e0ae4d08535')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:unreserve")
+        rules=["volume_extension:volume_actions:unreserve"])
     def test_volume_unreserve(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.unreserve_volume(self.volume['id'])
 
     @decorators.idempotent_id('c015c82f-7010-48cc-bd71-4ef542046f20')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:retype")
+                                 rules=["volume:retype"])
     def test_volume_retype(self):
         vol_type = self.create_volume_type()['name']
         volume = self.create_volume()
@@ -164,7 +164,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_admin_actions:reset_status")
+        rules=["volume_extension:volume_admin_actions:reset_status"])
     @decorators.idempotent_id('4b3dad7d-0e73-4839-8781-796dd3d7af1d')
     def test_volume_reset_status(self):
         volume = self.create_volume()
@@ -175,7 +175,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_admin_actions:force_delete")
+        rules=["volume_extension:volume_admin_actions:force_delete"])
     @decorators.idempotent_id('a312a937-6abf-4b91-a950-747086cbce48')
     def test_volume_force_delete(self):
         volume = self.create_volume()
@@ -189,7 +189,7 @@
     @utils.services('compute')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_admin_actions:force_detach")
+        rules=["volume_extension:volume_admin_actions:force_detach"])
     def test_force_detach_volume_from_instance(self):
         volume = self.create_volume()
         server = self._create_server()
@@ -227,7 +227,7 @@
     @utils.services('image')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:upload_image")
+        rules=["volume_extension:volume_actions:upload_image"])
     @decorators.idempotent_id('b0d0da46-903c-4445-893e-20e680d68b50')
     def test_volume_upload_image(self):
         # TODO(felipemonteiro): The ``upload_volume`` endpoint also enforces
@@ -251,7 +251,7 @@
     @utils.services('image')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_actions:upload_public")
+        rules=["volume_extension:volume_actions:upload_public"])
     @decorators.idempotent_id('578a84dd-a6bd-4f97-a418-4a0c3c272c08')
     def test_volume_upload_public(self):
         # This also enforces "volume_extension:volume_actions:upload_image".
@@ -277,7 +277,7 @@
     max_microversion = 'latest'
 
     @decorators.idempotent_id('a654833d-4811-4acd-93ef-5ac4a34c75bc')
-    @rbac_rule_validation.action(service="cinder", rule="volume:get_all")
+    @rbac_rule_validation.action(service="cinder", rules=["volume:get_all"])
     def test_show_volume_summary(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.show_volume_summary()
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_basic_crud_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_basic_crud_rbac.py
index a6ded52..2172fbb 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_basic_crud_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_basic_crud_rbac.py
@@ -32,7 +32,7 @@
         cls.volume = cls.create_volume()
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:create")
+                                 rules=["volume:create"])
     @decorators.idempotent_id('426b08ef-6394-4d06-9128-965d5a6c38ef')
     def test_create_volume(self):
         name = data_utils.rand_name(self.__class__.__name__ + '-Volume')
@@ -46,7 +46,7 @@
                                                 volume['id'], 'available')
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:delete")
+                                 rules=["volume:delete"])
     @decorators.idempotent_id('6de9f9c2-509f-4558-867b-af21c7163be4')
     def test_delete_volume(self):
         volume = self.create_volume()
@@ -54,14 +54,14 @@
             self.volumes_client.delete_volume(volume['id'])
         self.volumes_client.wait_for_resource_deletion(volume['id'])
 
-    @rbac_rule_validation.action(service="cinder", rule="volume:get")
+    @rbac_rule_validation.action(service="cinder", rules=["volume:get"])
     @decorators.idempotent_id('c4c3fdd5-b1b1-49c3-b977-a9f40ee9257a')
     def test_show_volume(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.show_volume(self.volume['id'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all")
+                                 rules=["volume:get_all"])
     @decorators.idempotent_id('e3ab7906-b04b-4c45-aa11-1104d302f940')
     def test_list_volumes(self):
         with self.rbac_utils.override_role(self):
@@ -69,12 +69,12 @@
 
     @decorators.idempotent_id('9b6d5beb-254f-4f1b-9906-0bdce4042f53')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all")
+                                 rules=["volume:get_all"])
     def test_list_volumes_with_details(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.list_volumes(detail=True)
 
-    @rbac_rule_validation.action(service="cinder", rule="volume:update")
+    @rbac_rule_validation.action(service="cinder", rules=["volume:update"])
     @decorators.idempotent_id('b751b889-9a9b-40d8-ae7d-4b0f65e71ac7')
     def test_update_volume(self):
         update_name = data_utils.rand_name(self.__class__.__name__ + 'volume')
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_hosts_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_hosts_rbac.py
index c21c40e..8e2e264 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_hosts_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_hosts_rbac.py
@@ -22,7 +22,7 @@
 class VolumeHostsV3RbacTest(rbac_base.BaseVolumeRbacTest):
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:hosts")
+                                 rules=["volume_extension:hosts"])
     @decorators.idempotent_id('64e837f5-5452-4e26-b934-c721ea7a8644')
     def test_list_hosts(self):
         with self.rbac_utils.override_role(self):
@@ -30,7 +30,7 @@
 
     @decorators.idempotent_id('9ddf321e-788f-4787-b8cc-dfa59e264143')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:hosts")
+                                 rules=["volume_extension:hosts"])
     def test_show_host(self):
         hosts = self.volume_hosts_client.list_hosts()['hosts']
         host_names = [host['host_name'] for host in hosts]
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
index 8a50141..6c2c84d 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_metadata_rbac.py
@@ -42,14 +42,14 @@
                         self.volume['id'], "key1")
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:create_volume_metadata")
+                                 rules=["volume:create_volume_metadata"])
     @decorators.idempotent_id('232bbb8b-4c29-44dc-9077-b1398c20b738')
     def test_create_volume_metadata(self):
         with self.rbac_utils.override_role(self):
             self._add_metadata(self.volume)
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_volume_metadata")
+                                 rules=["volume:get_volume_metadata"])
     @decorators.idempotent_id('87ea37d9-23ab-47b2-a59c-16fc4d2c6dfa')
     def test_show_volume_metadata(self):
         with self.rbac_utils.override_role(self):
@@ -58,7 +58,7 @@
 
     @decorators.idempotent_id('5c0f4c19-b448-4f51-9224-dad5faddc3bb')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_volume_metadata")
+                                 rules=["volume:get_volume_metadata"])
     def test_show_volume_metadata_item(self):
         self._add_metadata(self.volume)
 
@@ -67,7 +67,7 @@
                 self.volume['id'], "key1")
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:delete_volume_metadata")
+                                 rules=["volume:delete_volume_metadata"])
     @decorators.idempotent_id('7498dfc1-9db2-4423-ad20-e6dcb25d1beb')
     def test_delete_volume_metadata_item(self):
         self._add_metadata(self.volume)
@@ -77,7 +77,7 @@
                                                             "key1")
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_volume_metadata")
+                                 rules=["volume:update_volume_metadata"])
     @decorators.idempotent_id('8ce2ff80-99ba-49ae-9bb1-7e96729ee5af')
     def test_update_volume_metadata_item(self):
         self._add_metadata(self.volume)
@@ -88,7 +88,7 @@
 
     @decorators.idempotent_id('a231b445-97a5-4657-b05f-245895e88da9')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_volume_metadata")
+                                 rules=["volume:update_volume_metadata"])
     def test_update_volume_metadata(self):
         self._add_metadata(self.volume)
         updated_metadata = {"key1": "value1"}
@@ -99,7 +99,7 @@
     @decorators.idempotent_id('39e8f82c-f1fc-4905-bf47-177ce2f71bb9')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_image_metadata")
+        rules=["volume_extension:volume_image_metadata"])
     def test_list_volumes_details_image_metadata(self):
         self.volumes_client.update_volume_image_metadata(
             self.volume['id'], image_id=self.image_id)
@@ -117,7 +117,7 @@
     @decorators.idempotent_id('53f94d52-0dd5-42cf-a3a4-59b35150b3d5')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_image_metadata")
+        rules=["volume_extension:volume_image_metadata"])
     def test_show_volume_details_image_metadata(self):
         self.volumes_client.update_volume_image_metadata(
             self.volume['id'], image_id=self.image_id)
@@ -135,7 +135,7 @@
     @decorators.idempotent_id('a9d9e825-5ea3-42e6-96f3-7ac4e97b2ed0')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_image_metadata")
+        rules=["volume_extension:volume_image_metadata"])
     def test_update_volume_image_metadata(self):
         with self.rbac_utils.override_role(self):
             self.volumes_client.update_volume_image_metadata(
@@ -146,7 +146,7 @@
     @decorators.idempotent_id('a41c8eed-2051-4a25-b401-df036faacbdc')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_image_metadata")
+        rules=["volume_extension:volume_image_metadata"])
     def test_delete_volume_image_metadata(self):
         self.volumes_client.update_volume_image_metadata(
             self.volume['id'], image_id=self.image_id)
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_quotas_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_quotas_rbac.py
index 32cc48c..cd1fb6e 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_quotas_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_quotas_rbac.py
@@ -45,21 +45,21 @@
 
     @decorators.idempotent_id('427c9f0c-982e-403d-ae45-c05f4d6322ff')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quotas:show")
+                                 rules=["volume_extension:quotas:show"])
     def test_list_quotas(self):
         with self.rbac_utils.override_role(self):
             self.quotas_client.show_quota_set(self.demo_tenant_id)
 
     @decorators.idempotent_id('e47cf444-2753-4983-be6d-fc0d6523720f')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quotas:show")
+                                 rules=["volume_extension:quotas:show"])
     def test_list_quotas_usage_true(self):
         with self.rbac_utils.override_role(self):
             self.quotas_client.show_quota_set(self.demo_tenant_id,
                                               params={'usage': True})
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quotas:show")
+                                 rules=["volume_extension:quotas:show"])
     @decorators.idempotent_id('b3c7177e-b6b1-4d0f-810a-fc95606964dd')
     def test_list_default_quotas(self):
         with self.rbac_utils.override_role(self):
@@ -67,7 +67,7 @@
                 self.demo_tenant_id)
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quotas:update")
+                                 rules=["volume_extension:quotas:update"])
     @decorators.idempotent_id('60f8f421-1630-4953-b449-b22af32265c7')
     def test_update_quota_set(self):
         self._restore_default_quota_set()
@@ -81,7 +81,7 @@
 
     @decorators.idempotent_id('329bdb88-5132-4810-b1fc-350d181577e3')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume_extension:quotas:delete")
+                                 rules=["volume_extension:quotas:delete"])
     def test_delete_quota_set(self):
         self._restore_default_quota_set()
 
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_services_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_services_rbac.py
index 1711c88..9f97a82 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_services_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_services_rbac.py
@@ -41,7 +41,7 @@
     @decorators.idempotent_id('b9134f01-97c0-4abd-9455-fe2f03e3f966')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:services:index")
+        rules=["volume_extension:services:index"])
     def test_list_services(self):
         with self.rbac_utils.override_role(self):
             self.services_client.list_services()['services']
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_transfers_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_transfers_rbac.py
index ad0d031..a18a370 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_transfers_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_transfers_rbac.py
@@ -49,14 +49,14 @@
         return transfer
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:create_transfer")
+                                 rules=["volume:create_transfer"])
     @decorators.idempotent_id('25413af4-468d-48ff-94ca-4436f8526b3e')
     def test_create_volume_transfer(self):
         with self.rbac_utils.override_role(self):
             self._create_transfer()
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_transfer")
+                                 rules=["volume:get_transfer"])
     @decorators.idempotent_id('7a0925d3-ed97-4c25-8299-e5cdabe2eb55')
     def test_get_volume_transfer(self):
         transfer = self._create_transfer()
@@ -64,7 +64,7 @@
             self.transfers_client.show_volume_transfer(transfer['id'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all_transfers")
+                                 rules=["volume:get_all_transfers"])
     @decorators.idempotent_id('02a06f2b-5040-49e2-b2b7-619a7db59603')
     def test_list_volume_transfers(self):
         with self.rbac_utils.override_role(self):
@@ -72,13 +72,13 @@
 
     @decorators.idempotent_id('e84e45b0-9872-40bf-bf44-971266161a86')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all_transfers")
+                                 rules=["volume:get_all_transfers"])
     def test_list_volume_transfers_details(self):
         with self.rbac_utils.override_role(self):
             self.transfers_client.list_volume_transfers(detail=True)
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:accept_transfer")
+                                 rules=["volume:accept_transfer"])
     @decorators.idempotent_id('987f2a11-d657-4984-a6c9-28f06c1cd014')
     def test_accept_volume_transfer(self):
         transfer = self._create_transfer()
@@ -87,7 +87,7 @@
                 transfer['id'], auth_key=transfer['auth_key'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:delete_transfer")
+                                 rules=["volume:delete_transfer"])
     @decorators.idempotent_id('4672187e-7fff-454b-832a-5c8865dda868')
     def test_delete_volume_transfer(self):
         transfer = self._create_transfer()
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_types_access_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_types_access_rbac.py
index 89dc0a2..3aed54d 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_types_access_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_types_access_rbac.py
@@ -52,7 +52,7 @@
     @decorators.idempotent_id('af70e6ad-e931-419f-9200-8bcc284e4e47')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_type_access")
+        rules=["volume_extension:volume_type_access"])
     def test_list_type_access(self):
         self._add_type_access()
 
@@ -63,7 +63,7 @@
     @decorators.idempotent_id('b462eeba-45d0-4d6e-945a-a1d27708d367')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_type_access:addProjectAccess")
+        rules=["volume_extension:volume_type_access:addProjectAccess"])
     def test_add_type_access(self):
         with self.rbac_utils.override_role(self):
             self._add_type_access(ignore_not_found=True)
@@ -71,7 +71,7 @@
     @decorators.idempotent_id('8f848aeb-636a-46f1-aeeb-e2a60e9d2bfe')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_type_access:removeProjectAccess")
+        rules=["volume_extension:volume_type_access:removeProjectAccess"])
     def test_remove_type_access(self):
         self._add_type_access(ignore_not_found=True)
 
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_types_extra_specs_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_types_extra_specs_rbac.py
index 8d4c265..b610dde 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_types_extra_specs_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_types_extra_specs_rbac.py
@@ -55,7 +55,7 @@
     @decorators.idempotent_id('76c36be2-2b6c-4acf-9aac-c9dc5c17cdbe')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_extra_specs:index")
+        rules=["volume_extension:types_extra_specs:index"])
     def test_list_volume_types_extra_specs(self):
         with self.rbac_utils.override_role(self):
             self.volume_types_client.list_volume_types_extra_specs(
@@ -63,7 +63,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_extra_specs:create")
+        rules=["volume_extension:types_extra_specs:create"])
     @decorators.idempotent_id('eea40251-990b-49b0-99ae-10e4585b479b')
     def test_create_volume_type_extra_specs(self):
         with self.rbac_utils.override_role(self):
@@ -72,7 +72,7 @@
     @decorators.idempotent_id('e2dcc9c6-2fef-431d-afaf-92b45bc76d1a')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_extra_specs:show")
+        rules=["volume_extension:types_extra_specs:show"])
     def test_show_volume_type_extra_specs(self):
         self._create_volume_type_extra_specs()
 
@@ -83,7 +83,7 @@
     @decorators.idempotent_id('93001912-f938-41c7-8787-62dc7010fd52')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_extra_specs:delete")
+        rules=["volume_extension:types_extra_specs:delete"])
     def test_delete_volume_type_extra_specs(self):
         self._create_volume_type_extra_specs(ignore_not_found=True)
 
@@ -94,7 +94,7 @@
     @decorators.idempotent_id('0a444437-7402-4fbe-a18a-93af2ee00618')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_extra_specs:update")
+        rules=["volume_extension:types_extra_specs:update"])
     def test_update_volume_type_extra_specs(self):
         self._create_volume_type_extra_specs()
         update_extra_specs = {self.spec_key: "val2"}
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volume_types_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volume_types_rbac.py
index a37661e..a5bec1f 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volume_types_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volume_types_rbac.py
@@ -24,7 +24,7 @@
     @decorators.idempotent_id('e2bbf968-d947-4a15-a4da-a98c3069731e')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_manage")
+        rules=["volume_extension:types_manage"])
     def test_create_volume_type(self):
         with self.rbac_utils.override_role(self):
             self.create_volume_type()
@@ -32,7 +32,7 @@
     @decorators.idempotent_id('2b74ac82-e03e-4801-86f3-d05c9acfd66b')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_manage")
+        rules=["volume_extension:types_manage"])
     def test_update_volume_type(self):
         volume_type = self.create_volume_type()
         with self.rbac_utils.override_role(self):
@@ -42,7 +42,7 @@
     @decorators.idempotent_id('90aec0ef-4f9b-4170-be6b-a392c12540be')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:types_manage")
+        rules=["volume_extension:types_manage"])
     def test_delete_volume_type(self):
         volume_type = self.create_volume_type()
         with self.rbac_utils.override_role(self):
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
index 1e0a17d..bf22341 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_backup_rbac.py
@@ -57,7 +57,7 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:create")
+                                 rules=["backup:create"])
     @decorators.idempotent_id('6887ec94-0bcf-4ab7-b30f-3808a4b5a2a5')
     def test_create_backup(self):
         backup_name = data_utils.rand_name(self.__class__.__name__ + '-Backup')
@@ -73,14 +73,14 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:get")
+                                 rules=["backup:get"])
     @decorators.idempotent_id('abd92bdd-b0fb-4dc4-9cfc-de9e968f8c8a')
     def test_show_backup(self):
         with self.rbac_utils.override_role(self):
             self.backups_client.show_backup(self.backup['id'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:get_all")
+                                 rules=["backup:get_all"])
     @decorators.idempotent_id('4d18f0f0-7e01-4007-b622-dedc859b22f6')
     def test_list_backups(self):
         with self.rbac_utils.override_role(self):
@@ -88,7 +88,7 @@
 
     @decorators.idempotent_id('dbd69865-876f-4835-b70e-7341153fb162')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:get_all")
+                                 rules=["backup:get_all"])
     def test_list_backups_with_details(self):
         with self.rbac_utils.override_role(self):
             self.backups_client.list_backups(detail=True)
@@ -97,7 +97,7 @@
     @decorators.idempotent_id('50f43bde-205e-438e-9a05-5eac07fc3d63')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:backup_admin_actions:reset_status")
+        rules=["volume_extension:backup_admin_actions:reset_status"])
     def test_reset_backup_status(self):
         # Use instance-level create_backup for easier debugging.
         backup = self.create_backup(volume_id=self.volume['id'])
@@ -112,7 +112,7 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:restore")
+                                 rules=["backup:restore"])
     @decorators.idempotent_id('9c794bf9-2446-4f41-8fe0-80b71e757f9d')
     def test_restore_backup(self):
         with self.rbac_utils.override_role(self):
@@ -125,7 +125,7 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:delete")
+                                 rules=["backup:delete"])
     @decorators.idempotent_id('d5d0c6a2-413d-437e-a73f-4bf2b41a20ed')
     def test_delete_backup(self):
         # Do not call the create_backup in Tempest's base volume class, because
@@ -147,7 +147,7 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:export-import")
+                                 rules=["backup:export-import"])
     @decorators.idempotent_id('e984ec8d-e8eb-485c-98bc-f1856020303c')
     def test_export_backup(self):
         with self.rbac_utils.override_role(self):
@@ -156,7 +156,7 @@
 
     @decorators.attr(type='slow')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:backup-import")
+                                 rules=["backup:backup-import"])
     @decorators.idempotent_id('1e70f039-4556-44cc-9cc1-edf2b7ed648b')
     def test_import_backup(self):
         export_backup = self.backups_client.export_backup(
@@ -202,7 +202,7 @@
 
     @decorators.idempotent_id('69801485-d5be-4e75-bbb4-168d50b5a8c2')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:backup_project_attribute")
+                                 rules=["backup:backup_project_attribute"])
     def test_show_backup_project_attribute(self):
         with self.rbac_utils.override_role(self):
             body = self.backups_client.show_backup(self.backup['id'])['backup']
@@ -215,7 +215,7 @@
 
     @decorators.idempotent_id('aa40b7c0-5974-48be-8cbc-e23cc61c4c68')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="backup:backup_project_attribute")
+                                 rules=["backup:backup_project_attribute"])
     def test_list_backup_details_project_attribute(self):
         with self.rbac_utils.override_role(self):
             body = self.backups_client.list_backups(detail=True)['backups']
@@ -246,7 +246,7 @@
     @decorators.idempotent_id('b45b0e98-6eb8-4c62-aa53-0f8c7c09faa6')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="backup:update")
+        rules=["backup:update"])
     def test_backup_update(self):
         update_kwargs = {
             'name': data_utils.rand_name(self.__class__.__name__ + '-Backup'),
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_extend_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_extend_rbac.py
index 18883c9..ec6cf66 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_extend_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_extend_rbac.py
@@ -28,7 +28,7 @@
         # Create a test shared volume for tests
         cls.volume = cls.create_volume()
 
-    @rbac_rule_validation.action(service="cinder", rule="volume:extend")
+    @rbac_rule_validation.action(service="cinder", rules=["volume:extend"])
     @decorators.idempotent_id('1627b065-4081-4e14-8340-8e4fb02ceaf2')
     def test_volume_extend(self):
         # Extend volume test
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_manage_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_manage_rbac.py
index 852d81e..2782e22 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_manage_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_manage_rbac.py
@@ -66,7 +66,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_manage")
+        rules=["volume_extension:volume_manage"])
     @decorators.idempotent_id('114f9708-939b-407e-aeac-d21ebfabaad3')
     def test_volume_manage(self):
         volume_id = self.create_volume()['id']
@@ -108,7 +108,7 @@
 
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:volume_unmanage")
+        rules=["volume_extension:volume_unmanage"])
     @decorators.idempotent_id('d5d72abe-60bc-45ac-a8f2-c21b24f0b5d6')
     def test_volume_unmanage(self):
         volume_id = self.create_volume()['id']
diff --git a/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py b/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
index 7d721c4..40469a2 100644
--- a/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
+++ b/patrole_tempest_plugin/tests/api/volume/test_volumes_snapshots_rbac.py
@@ -46,7 +46,7 @@
             detail=with_detail, **params)['snapshots']
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:create_snapshot")
+                                 rules=["volume:create_snapshot"])
     @decorators.idempotent_id('ac7b2ee5-fbc0-4360-afc2-de8fa4881ede')
     def test_create_snapshot(self):
         # Create a temp snapshot
@@ -54,7 +54,7 @@
             self.create_snapshot(self.volume['id'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_snapshot")
+                                 rules=["volume:get_snapshot"])
     @decorators.idempotent_id('93a11b40-1ba8-44d6-a196-f8d97220f796')
     def test_show_snapshot(self):
         # Get the snapshot
@@ -65,7 +65,7 @@
     @decorators.idempotent_id('5d6f5f21-9293-4f2a-8f44-cabdc24d92cb')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:extended_snapshot_attributes")
+        rules=["volume_extension:extended_snapshot_attributes"])
     def test_show_snapshot_with_extended_attributes(self):
         """List snapshots with extended attributes."""
         expected_attrs = ('os-extended-snapshot-attributes:project_id',
@@ -80,7 +80,7 @@
                     attribute=expected_attr)
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:update_snapshot")
+                                 rules=["volume:update_snapshot"])
     @decorators.idempotent_id('53fe8ee3-3bea-4ae8-a979-3c98ea72f620')
     def test_update_snapshot(self):
         new_desc = 'This is the new description of snapshot.'
@@ -93,7 +93,7 @@
             self.snapshots_client, self.snapshot['id'], 'available')
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:delete_snapshot")
+                                 rules=["volume:delete_snapshot"])
     @decorators.idempotent_id('c7fe54ec-3b70-4772-ba11-f166d95888a3')
     def test_delete_snapshot(self):
         # Create a temp snapshot
@@ -105,7 +105,7 @@
             temp_snapshot['id'])
 
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all_snapshots")
+                                 rules=["volume:get_all_snapshots"])
     @decorators.idempotent_id('e4edf0c0-2cd3-420f-b8ab-4d98a0718608')
     def test_list_snapshots(self):
         """List snapshots with params."""
@@ -115,7 +115,7 @@
 
     @decorators.idempotent_id('f3155d8e-45ee-45c9-910d-18c0242229e1')
     @rbac_rule_validation.action(service="cinder",
-                                 rule="volume:get_all_snapshots")
+                                 rules=["volume:get_all_snapshots"])
     def test_list_snapshots_details(self):
         """List snapshots details with params."""
         params = {'name': self.snapshot['name']}
@@ -125,7 +125,7 @@
     @decorators.idempotent_id('dd37f388-2731-446d-a78f-676997ebb04a')
     @rbac_rule_validation.action(
         service="cinder",
-        rule="volume_extension:extended_snapshot_attributes")
+        rules=["volume_extension:extended_snapshot_attributes"])
     def test_list_snapshots_details_with_extended_attributes(self):
         """List snapshots details with extended attributes."""
         expected_attrs = ('os-extended-snapshot-attributes:project_id',
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 1772047..4115aed 100644
--- a/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
+++ b/patrole_tempest_plugin/tests/unit/test_rbac_rule_validation.py
@@ -221,7 +221,7 @@
            exception.
         """
         @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action],
-                        expected_error_code=404)
+                        expected_error_codes=[404])
         def test_policy(*args):
             raise exceptions.Forbidden('Test message')
 
@@ -251,7 +251,7 @@
         policy_names = ['foo:bar']
 
         @rbac_rv.action(mock.sentinel.service, rules=policy_names,
-                        expected_error_code=404)
+                        expected_error_codes=[404])
         def test_policy(*args):
             raise exceptions.NotFound()
 
@@ -304,7 +304,7 @@
             pass
 
         @rbac_rv.action(mock.sentinel.service, rules=[mock.sentinel.action],
-                        expected_error_code=404)
+                        expected_error_codes=[404])
         def test_policy_expect_not_found(*args):
             pass
 
@@ -455,7 +455,7 @@
         mock_authority.PolicyAuthority.return_value.allowed.return_value = True
 
         @rbac_rv.action(mock.sentinel.service,
-                        rule=lambda: mock.sentinel.action)
+                        rules=[lambda: mock.sentinel.action])
         def test_policy(*args):
             pass
 
@@ -483,12 +483,12 @@
         bar_callable = functools.partial(partial_func, "baz")
 
         @rbac_rv.action(mock.sentinel.service,
-                        rule=foo_callable)
+                        rules=[foo_callable])
         def test_foo_policy(*args):
             pass
 
         @rbac_rv.action(mock.sentinel.service,
-                        rule=bar_callable)
+                        rules=[bar_callable])
         def test_bar_policy(*args):
             pass
 
@@ -731,31 +731,24 @@
         _do_test([True, False, False, True], 'mock.sentinel.action2')
         _do_test([True, False, True, False], 'mock.sentinel.action2')
 
-    @mock.patch.object(rbac_rv, 'LOG', autospec=True)
-    def test_prepare_multi_policy_allowed_usages(self, mock_log):
+    def test_prepare_multi_policy_allowed_usages(self):
 
-        def _do_test(rule, rules, ecode, ecodes, exp_rules, exp_ecodes):
-            rule_list, ec_list = rbac_rv._prepare_multi_policy(rule, rules,
-                                                               ecode, ecodes)
+        def _do_test(rules, ecodes, exp_rules, exp_ecodes):
+            rule_list, ec_list = rbac_rv._prepare_multi_policy(rules, ecodes)
             self.assertEqual(rule_list, exp_rules)
             self.assertEqual(ec_list, exp_ecodes)
 
-        # Validate that using deprecated values: rule and expected_error_code
-        # are converted into rules = [rule] and expected_error_codes =
-        # [expected_error_code]
-        _do_test("rule1", None, 403, None, ["rule1"], [403])
-
-        # Validate that rules = [rule] and expected_error_codes defaults to
-        # 403 when no values are provided.
-        _do_test("rule1", None, None, None, ["rule1"], [403])
+        # Validate that expected_error_codes defaults to 403 when no values
+        # are provided.
+        _do_test(["rule1"], None, ["rule1"], [403])
 
         # Validate that `len(rules) == len(expected_error_codes)` works when
         # both == 1.
-        _do_test(None, ["rule1"], None, [403], ["rule1"], [403])
+        _do_test(["rule1"], [403], ["rule1"], [403])
 
         # Validate that `len(rules) == len(expected_error_codes)` works when
         # both are > 1.
-        _do_test(None, ["rule1", "rule2"], None, [403, 404],
+        _do_test(["rule1", "rule2"], [403, 404],
                  ["rule1", "rule2"], [403, 404])
 
         # Validate that when only a default expected_error_code argument is
@@ -765,39 +758,27 @@
         #     @rbac_rv.action(service, rules=[<rule>, <rule>])
         #     def test_policy(*args):
         #        ...
-        _do_test(None, ["rule1", "rule2"], 403, None,
+        _do_test(["rule1", "rule2"], None,
                  ["rule1", "rule2"], [403, 403])
 
-        # Validate that the deprecated values are ignored when new values are
-        # provided.
-        _do_test("rule3", ["rule1", "rule2"], 404, [403, 403],
-                 ["rule1", "rule2"], [403, 403])
-        mock_log.debug.assert_any_call(
-            "The `rules` argument will be used instead of `rule`.")
-        mock_log.debug.assert_any_call(
-            "The `exp_error_codes` argument will be used instead of "
-            "`exp_error_code`.")
-
     @mock.patch.object(rbac_rv, 'LOG', autospec=True)
     def test_prepare_multi_policy_disallowed_usages(self, mock_log):
 
-        def _do_test(rule, rules, ecode, ecodes):
-            rule_list, ec_list = rbac_rv._prepare_multi_policy(rule, rules,
-                                                               ecode, ecodes)
+        def _do_test(rules, ecodes):
+            rule_list, ec_list = rbac_rv._prepare_multi_policy(rules, ecodes)
 
         error_re = ("The `expected_error_codes` list is not the same length"
                     " as the `rules` list.")
         # When len(rules) > 1 then len(expected_error_codes) must be same len.
         self.assertRaisesRegex(ValueError, error_re, _do_test,
-                               None, ["rule1", "rule2"], None, [403])
+                               ["rule1", "rule2"], [403])
         # When len(expected_error_codes) > 1 len(rules) must be same len.
-        self.assertRaisesRegex(ValueError, error_re, _do_test,
-                               None, ["rule1"], None, [403, 404])
+        self.assertRaisesRegex(ValueError, error_re, _do_test, ["rule1"],
+                               [403, 404])
         error_re = ("The `rules` list must be provided if using the "
                     "`expected_error_codes` list.")
         # When expected_error_codes is provided rules must be as well.
-        self.assertRaisesRegex(ValueError, error_re, _do_test,
-                               None, None, None, [404])
+        self.assertRaisesRegex(ValueError, error_re, _do_test, None, [404])
 
 
 class RBACOverrideRoleValidationTest(BaseRBACRuleValidationTest):