Add 'fixed ips' APIs policy tests

'fixed ips' API tests are not covered for policy testing.
This commit adds The tests for this APIs.

Change-Id: Idc3d022c03bd5890535eea19301e59cf616de278
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
new file mode 100644
index 0000000..dd32187
--- /dev/null
+++ b/patrole_tempest_plugin/tests/api/compute/test_fixed_ips_rbac.py
@@ -0,0 +1,78 @@
+#    Copyright 2017 NEC 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 import config
+from tempest.lib import decorators
+
+from patrole_tempest_plugin import rbac_rule_validation
+from patrole_tempest_plugin.tests.api.compute import rbac_base
+
+CONF = config.CONF
+
+
+class FixedIpsRbacTest(rbac_base.BaseV2ComputeRbacTest):
+
+    # Tests will fail with a 404 starting from microversion 2.36:
+    # See the following link for details:
+    # https://developer.openstack.org/api-ref/compute/#fixed-ips-os-fixed-ips-deprecated
+    max_microversion = '2.35'
+
+    @classmethod
+    def skip_checks(cls):
+        super(FixedIpsRbacTest, cls).skip_checks()
+        if CONF.service_available.neutron:
+            msg = ("%s skipped as neutron is available" % cls.__name__)
+            raise cls.skipException(msg)
+
+    @classmethod
+    def resource_setup(cls):
+        super(FixedIpsRbacTest, cls).resource_setup()
+        server = cls.create_test_server(wait_until='ACTIVE')
+        server = cls.servers_client.show_server(server['id'])['server']
+        cls.ip = None
+        for ip_set in server['addresses']:
+            for ip in server['addresses'][ip_set]:
+                if ip['OS-EXT-IPS:type'] == 'fixed':
+                    cls.ip = ip['addr']
+                    break
+            if cls.ip:
+                break
+        if cls.ip is None:
+            raise cls.skipException("No fixed ip found for server: %s"
+                                    % server['id'])
+
+    @decorators.idempotent_id('c89391f7-4844-4a70-a116-37c1336efb99')
+    @rbac_rule_validation.action(
+        service="nova",
+        rule="os_compute_api:os-fixed-ips")
+    def test_show_fixed_ip_details(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.fixed_ips_client.show_fixed_ip(self.ip)
+
+    @decorators.idempotent_id('f0314501-735d-4315-9856-959e01e82f0d')
+    @rbac_rule_validation.action(
+        service="nova",
+        rule="os_compute_api:os-fixed-ips")
+    def test_set_reserve(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.fixed_ips_client.reserve_fixed_ip(self.ip, reserve="None")
+
+    @decorators.idempotent_id('866a6fdc-a237-4502-9bf2-52fe82aba356')
+    @rbac_rule_validation.action(
+        service="nova",
+        rule="os_compute_api:os-fixed-ips")
+    def test_set_unreserve(self):
+        self.rbac_utils.switch_role(self, toggle_rbac_role=True)
+        self.fixed_ips_client.reserve_fixed_ip(self.ip, unreserve="None")