Add heat list_stack_and_events scenario

This scenario covers list heat stack events

Change-Id: I5e90a373bfa8efbeecc883c9dc0863c24087d8bb

rally-jobs/rally.yaml

@@ -1525,3 +1525,20 @@
       sla:
         failure_rate:
           max: 0
+
+  HeatStacks.list_stacks_and_events:
+    -
+      runner:
+        type: "constant"
+        times: 6
+        concurrency: 3
+      context:
+        users:
+          tenants: 2
+          users_per_tenant: 3
+        stacks:
+          stacks_per_tenant: 2
+          resources_per_stack: 10
+      sla:
+        failure_rate:
+          max: 0

rally/benchmark/scenarios/heat/stacks.py

@@ -149,3 +149,15 @@ class HeatStacks(utils.HeatScenario):
         self._suspend_stack(s)
         self._resume_stack(s)
         self._delete_stack(s)
+
+    @validation.required_services(consts.Service.HEAT)
+    @validation.required_openstack(users=True)
+    @base.scenario()
+    def list_stacks_and_events(self):
+        """List events from tenant stacks."""
+
+        stacks = self._list_stacks()
+        with base.AtomicAction(
+                self, "heat.list_events_of_%s_stacks" % len(stacks)):
+            for stack in stacks:
+                self.clients("heat").events.list(stack.id)

samples/tasks/scenarios/heat/list-stack-and-event.json

@@ -0,0 +1,21 @@
+{
+    "HeatStacks.list_stacks_and_events": [
+        {
+            "runner": {
+                "type": "constant",
+                "times": 10,
+                "concurrency": 1
+            },
+            "context": {
+                "users": {
+                    "tenants": 1,
+                    "users_per_tenant": 1
+                },
+                "stacks": {
+                    "stacks_per_tenant": 2,
+                    "resources_per_stack": 10
+                }
+            }
+        }
+    ]
+}

samples/tasks/scenarios/heat/list-stack-and-event.yaml

@@ -0,0 +1,14 @@
+---
+  HeatStacks.list_stacks_and_events:
+    -
+      runner:
+        type: "constant"
+        times: 10
+        concurrency: 1
+      context:
+        users:
+          tenants: 1
+          users_per_tenant: 1
+        stacks:
+          stacks_per_tenant: 2
+          resources_per_stack: 10

tests/unit/benchmark/scenarios/heat/test_stacks.py

@@ -48,6 +48,17 @@ class HeatStacksTestCase(test.TestCase):
         self._test_atomic_action_timer(
             heat_scenario.atomic_actions(), "heat.list_resources_of_1_stacks")
 
+    @mock.patch(HEAT_STACKS + ".clients")
+    @mock.patch(HEAT_STACKS + "._list_stacks")
+    def test_list_stack_and_events(self, mock_list_stack, mock_clients):
+        stack = mock.Mock()
+        mock_list_stack.return_value = [stack]
+        heat_scenario = stacks.HeatStacks()
+        heat_scenario.list_stacks_and_events()
+        mock_clients("heat").events.list.assert_called_once_with(stack.id)
+        self._test_atomic_action_timer(
+            heat_scenario.atomic_actions(), "heat.list_events_of_1_stacks")
+
     @mock.patch(HEAT_STACKS + "._generate_random_name")
     @mock.patch(HEAT_STACKS + "._list_stacks")
     @mock.patch(HEAT_STACKS + "._create_stack")