Add system tests for Kafka plugin

Change-Id: Idc9871a8cf59e1b07035a705a9b2721412370582

stacklight_tests/kafka/test_system.py

@@ -0,0 +1,101 @@
+#    Copyright 2016 Mirantis, Inc.
+#
+#    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 fuelweb_test.helpers.decorators import log_snapshot_after_test
+from proboscis import test
+
+from stacklight_tests.kafka import api
+
+
+@test(groups=["plugins"])
+class TestNodesKafkaPlugin(api.KafkaPluginApi):
+    """Class for system tests for Ceilometer-Redis plugin."""
+
+    @test(depends_on_groups=["deploy_kafka"],
+          groups=["check_scaling_kafka", "scaling",
+                  "kafka", "system",
+                  "add_remove_controller_kafka"])
+    @log_snapshot_after_test
+    def add_remove_controller_kafka(self):
+        """Verify that the number of controllers can scale up and down
+
+        Scenario:
+            1. Revert snapshot with 5 deployed nodes in HA configuration
+            2. Remove one controller node and redeploy the cluster
+            3. Check that Kafka is running
+            4. Run OSTF
+            5. Add one controller node (return previous state) and
+               redeploy the cluster
+            6. Check that Kafka is running
+            7. Run OSTF
+
+        Duration 120m
+        """
+        self.env.revert_snapshot("deploy_kafka")
+
+        target_node = {'slave-02': ['controller', self.settings.role_name]}
+
+        # Remove a controller
+        self.helpers.remove_nodes_from_cluster(target_node)
+
+        self.check_plugin_online()
+
+        # After removing a controller, one OSTF test should fail
+        self.helpers.run_ostf()
+
+        # Add a controller
+        self.helpers.add_nodes_to_cluster(target_node)
+
+        self.check_plugin_online()
+
+        self.helpers.run_ostf()
+
+    @test(depends_on_groups=["deploy_kafka"],
+          groups=["check_scaling_kafka", "scaling",
+                  "kafka", "system",
+                  "add_remove_compute_kafka"])
+    @log_snapshot_after_test
+    def add_remove_compute_kafka(self):
+        """Verify that the number of computes can scale up and down
+
+        Scenario:
+            1. Revert snapshot with 5 deployed nodes in HA configuration
+            2. Remove one controller node and redeploy the cluster
+            3. Check that Kafka is running
+            4. Run OSTF
+            5. Add one compute node (return previous state) and
+               redeploy the cluster
+            6. Check that Kafka is running
+            7. Run OSTF
+
+        Duration 120m
+        """
+        self.env.revert_snapshot("deploy_kafka")
+
+        target_node = {'slave-05': ['compute', 'cinder']}
+
+        # Remove a compute
+        self.helpers.remove_nodes_from_cluster(target_node)
+
+        self.check_plugin_online()
+
+        # After removing a compute, one OSTF test should fail
+        self.helpers.run_ostf()
+
+        # Add a compute
+        self.helpers.add_nodes_to_cluster(target_node)
+
+        self.check_plugin_online()
+
+        self.helpers.run_ostf()