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>

1 files changed, 38 insertions, 0 deletions

diff --git a/yardstick/benchmark/contexts/dummy.py b/yardstick/benchmark/contexts/dummy.py
new file mode 100644
index 000000000..6901b2617
--- /dev/null
+++ b/yardstick/benchmark/contexts/dummy.py
@@ -0,0 +1,38 @@
+##############################################################################
+# 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.contexts.base import Context
+
+
+LOG = logging.getLogger(__name__)
+
+
+class DummyContext(Context):
+    '''Class that handle dummy info'''
+
+    __context_type__ = "Dummy"
+
+    def __init__(self):
+        super(self.__class__, self).__init__()
+
+    def init(self, attrs):
+        pass
+
+    def deploy(self):
+        '''don't need to deploy'''
+        pass
+
+    def undeploy(self):
+        '''don't need to undeploy'''
+        pass
+
+    def _get_server(self, attr_name):
+        return None