Add Dummy context and scenario type

Dummy Context Usage:

- if no context specified in the task file then automatically use
  Dummy Context

- or specify the context with type Dummy in the task file, like

    context:
      type: Dummy

Note: context without type name default use Heat Context.
      (e.g. samples/fio.yaml)

JIRA: -

Change-Id: I7f798a7260bdd6ac24902e2c835a3b121319fd8c
Signed-off-by: QiLiang <liangqi1@huawei.com>

2 files changed, 36 insertions, 0 deletions

diff --git a/yardstick/benchmark/scenarios/dummy/__init__.py b/yardstick/benchmark/scenarios/dummy/__init__.py
new file mode 100644
index 000000000..e69de29bb
--- /dev/null
+++ b/yardstick/benchmark/scenarios/dummy/__init__.py
diff --git a/yardstick/benchmark/scenarios/dummy/dummy.py b/yardstick/benchmark/scenarios/dummy/dummy.py
new file mode 100644
index 000000000..de6742c40
--- /dev/null
+++ b/yardstick/benchmark/scenarios/dummy/dummy.py
@@ -0,0 +1,36 @@
+##############################################################################
+# Copyright (c) 2015 Huawei Technologies Co.,Ltd and others.
+#
+# All rights reserved. This program and the accompanying materials
+# are made available under the terms of the Apache License, Version 2.0
+# which accompanies this distribution, and is available at
+# http://www.apache.org/licenses/LICENSE-2.0
+##############################################################################
+import logging
+
+from yardstick.benchmark.scenarios import base
+
+LOG = logging.getLogger(__name__)
+
+
+class Dummy(base.Scenario):
+    """Execute Dummy echo
+    """
+    __scenario_type__ = "Dummy"
+
+    def __init__(self, scenario_cfg, context_cfg):
+        self.scenario_cfg = scenario_cfg
+        self.context_cfg = context_cfg
+        self.setup_done = False
+
+    def setup(self):
+        '''scenario setup'''
+        self.setup_done = True
+
+    def run(self, result):
+        """execute the benchmark"""
+        if not self.setup_done:
+            self.setup()
+
+        result["hello"] = "yardstick"
+        LOG.info("Dummy echo hello yardstick!")