Add Gnocchi status scenario

This patch is based on [1] and adds 'Gnocchi.get_status' scenario.

[1] https://review.openstack.org/#/c/453861/

Change-Id: I3f5a7d13dbc24840a4cc811f84d063d30339cef4
Signed-off-by: Juha Kosonen <juha.kosonen@nokia.com>

rally/plugins/openstack/scenarios/gnocchi/status.py

@@ -0,0 +1,34 @@
+# Copyright 2017 Red Hat, Inc. <http://www.redhat.com>
+#
+#    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 rally import consts
+from rally.plugins.openstack import scenario
+from rally.plugins.openstack.scenarios.gnocchi import utils as gnocchiutils
+from rally.task import validation
+
+"""Scenarios for Gnocchi status."""
+
+
+@validation.add("required_services",
+                services=[consts.Service.GNOCCHI])
+@validation.add("required_platform", platform="openstack", admin=True)
+@scenario.configure(name="Gnocchi.get_status")
+class GetStatus(gnocchiutils.GnocchiBase):
+
+    def run(self, detailed=False):
+        """Get the status of measurements processing.
+
+        :param detailed: get detailed output
+        """
+        self.admin_gnocchi.get_status(detailed)

samples/tasks/scenarios/gnocchi/get-status.json

@@ -0,0 +1,19 @@
+{
+    "Gnocchi.get_status": [
+        {
+            "args": {
+                "detailed": false
+            },
+            "runner": {
+                "type": "constant",
+                "times": 10,
+                "concurrency": 2
+            },
+            "sla": {
+                "failure_rate": {
+                    "max": 0
+                }
+            }
+        }
+    ]
+}

samples/tasks/scenarios/gnocchi/get-status.yaml

@@ -0,0 +1,12 @@
+---
+  Gnocchi.get_status:
+    -
+      args:
+        detailed: false
+      runner:
+        type: constant
+        times: 10
+        concurrency: 2
+      sla:
+        failure_rate:
+          max: 0

tests/unit/plugins/openstack/scenarios/gnocchi/test_status.py

@@ -0,0 +1,43 @@
+# Copyright 2017 Red Hat, Inc. <http://www.redhat.com>
+#
+#    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.
+
+import mock
+
+from rally.plugins.openstack.scenarios.gnocchi import status
+from tests.unit import test
+
+
+class GnocchiStatusTestCase(test.ScenarioTestCase):
+
+    def get_test_context(self):
+        context = super(GnocchiStatusTestCase, self).get_test_context()
+        context.update({
+            "admin": {
+                "user_id": "fake",
+                "credential": mock.MagicMock()
+            }
+        })
+        return context
+
+    def setUp(self):
+        super(GnocchiStatusTestCase, self).setUp()
+        patch = mock.patch(
+            "rally.plugins.openstack.services.gnocchi.metric.GnocchiService")
+        self.addCleanup(patch.stop)
+        self.mock_metric = patch.start()
+
+    def test_get_status(self):
+        metric_service = self.mock_metric.return_value
+        status.GetStatus(self.context).run(False)
+        metric_service.get_status.assert_called_once_with(False)