Add Gnocchi scenario for resource creation

This patch is based on [1] and adds following scenario:

GnocchiResource.create_resource

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

Change-Id: Iad55fd5ea43bc5ec1dfd60bab5685bd3ac794fb9
Signed-off-by: Juha Kosonen <juha.kosonen@nokia.com>

tests/unit/cleanup/test_resources.py

@@ -1144,3 +1144,29 @@ class GnocchiMetricTestCase(test.TestCase):
             [mock.call(marker=None), mock.call(marker=metrics[1]["id"]),
              mock.call(marker=metrics[3]["id"])],
             gnocchi._manager.return_value.list.call_args_list)
+
+
+class GnocchiResourceTestCase(test.TestCase):
+
+    def get_gnocchi(self):
+        gnocchi = resources.GnocchiResource()
+        gnocchi._service = "gnocchi"
+        return gnocchi
+
+    def test_id(self):
+        gnocchi = self.get_gnocchi()
+        gnocchi.raw_resource = {"id": "test_id"}
+        self.assertEqual("test_id", gnocchi.id())
+
+    def test_list(self):
+        gnocchi = self.get_gnocchi()
+        gnocchi._manager = mock.MagicMock()
+        res = [mock.MagicMock(), mock.MagicMock(), mock.MagicMock(),
+               mock.MagicMock()]
+        gnocchi._manager.return_value.list.side_effect = (
+            res[:2], res[2:4], [])
+        self.assertEqual(res, gnocchi.list())
+        self.assertEqual(
+            [mock.call(marker=None), mock.call(marker=res[1]["id"]),
+             mock.call(marker=res[3]["id"])],
+            gnocchi._manager.return_value.list.call_args_list)

tests/unit/scenarios/gnocchi/test_resource.py

@@ -0,0 +1,51 @@
+# 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_openstack.scenarios.gnocchi import resource
+from tests.unit import test
+
+
+class GnocchiResourceTestCase(test.ScenarioTestCase):
+
+    def get_test_context(self):
+        context = super(GnocchiResourceTestCase, self).get_test_context()
+        context.update({
+            "admin": {
+                "user_id": "fake",
+                "credential": mock.MagicMock()
+            },
+            "user": {
+                "user_id": "fake",
+                "credential": mock.MagicMock()
+            },
+            "tenant": {"id": "fake"}
+        })
+        return context
+
+    def setUp(self):
+        super(GnocchiResourceTestCase, self).setUp()
+        patch = mock.patch(
+            "rally_openstack.services.gnocchi.metric.GnocchiService")
+        self.addCleanup(patch.stop)
+        self.mock_metric = patch.start()
+
+    def test_create_resource(self):
+        resource_service = self.mock_metric.return_value
+        scenario = resource.CreateResource(self.context)
+        scenario.generate_random_name = mock.MagicMock(return_value="name")
+        scenario.run(resource_type="foo")
+        resource_service.create_resource.assert_called_once_with(
+            "name", resource_type="foo")