Subnet rbac tests

Add rbac tests for subnet-related network policy actions. This
commit adds coverage for the following policy actions:

    * create_subnet
    * get_subnet
    * update_subnet
    * delete_subnet

Note that policy actions like create_subnet:segment_id and
get_subnet:segment_id have not been included because it is not
clear how to enforce them (same with create_subnet:service_types:
service_types is not even an attribute exposed in the subnet v2.0
documentation).

Change-Id: I982fde3e065cbf966a03754e99dae8c3fe8715b9

patrole_tempest_plugin/tests/api/network/test_subnets_rbac.py

@@ -0,0 +1,96 @@
+# Copyright 2017 AT&T Corporation.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from tempest.lib.common.utils import data_utils
+from tempest.lib import decorators
+from tempest import test
+
+from patrole_tempest_plugin import rbac_rule_validation
+from patrole_tempest_plugin.tests.api.network import rbac_base as base
+
+
+class SubnetsRbacTest(base.BaseNetworkRbacTest):
+
+    @classmethod
+    def skip_checks(cls):
+        super(SubnetsRbacTest, cls).skip_checks()
+        if not test.is_extension_enabled('subnet_allocation', 'network'):
+            msg = "subnet_allocation extension not enabled."
+            raise cls.skipException(msg)
+
+    @classmethod
+    def resource_setup(cls):
+        super(SubnetsRbacTest, cls).resource_setup()
+        cls.network = cls.create_network()
+        cls.subnet = cls.create_subnet(cls.network)
+
+    @decorators.idempotent_id('0481adeb-4301-44d5-851c-35910cc18a6b')
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="create_subnet")
+    def test_create_subnet(self):
+        """Create subnet.
+
+        RBAC test for the neutron "create_subnet" policy
+        """
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.create_subnet(self.network)
+
+    @decorators.idempotent_id('c02618e7-bb20-4abd-83c8-6eec2af08752')
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="get_subnet")
+    def test_show_subnet(self):
+        """Show subnet.
+
+        RBAC test for the neutron "get_subnet" policy
+        """
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.subnets_client.show_subnet(self.subnet['id'])
+
+    @decorators.idempotent_id('e2ddc415-5cab-43f4-9b61-166aed65d637')
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="get_subnet")
+    def test_list_subnets(self):
+        """List subnets.
+
+        RBAC test for the neutron "get_subnet" policy
+        """
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.subnets_client.list_subnets()
+
+    @decorators.idempotent_id('f36cd821-dd22-4bd0-b43d-110fc4b553eb')
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="update_subnet")
+    def test_update_subnet(self):
+        """Update subnet.
+
+        RBAC test for the neutron "update_subnet" policy
+        """
+        update_name = data_utils.rand_name(self.__class__.__name__ + '-Subnet')
+
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.subnets_client.update_subnet(self.subnet['id'], name=update_name)
+
+    @decorators.idempotent_id('bcfc7153-bbd1-43a4-a908-b3e1b0cde0dc')
+    @rbac_rule_validation.action(service="neutron",
+                                 rule="delete_subnet")
+    def test_delete_subnet(self):
+        """Delete subnet.
+
+        RBAC test for the neutron "delete_subnet" policy
+        """
+        subnet = self.create_subnet(self.network)
+
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.subnets_client.delete_subnet(subnet['id'])

releasenotes/notes/subnet-rbac-tests-6d3cf54e39a7b486.yaml

@@ -0,0 +1,10 @@
+---
+features:
+  - |
+    Add RBAC tests for network subnet endpoints, providing coverage for the
+    following policy actions:
+
+      * create_subnet
+      * get_subnet
+      * update_subnet
+      * delete_subnet