unify functest_yaml obtain process

functest_yaml is needed in almost all of the testcases, the obtain process is the same:
with open(os.environ["CONFIG_FUNCTEST_YAML"]) as f:
functest_yaml = yaml.safe_load(f)
f.close()
abstract a method to unify the process, and provide the interface

JIRA: FUNCTEST-447

Change-Id: I96a9a9962d7b466f10bbd3b5ab2495957524e22a
Signed-off-by: SerenaFeng <feng.xiaowei@zte.com.cn>
(cherry picked from commit f4d0a05011e961a363c6d99522684ecdeb959716)

1 files changed, 6 insertions, 11 deletions

diff --git a/testcases/vnf/vIMS/vIMS.py b/testcases/vnf/vIMS/vIMS.py
index 66911c1d8..7a96c94e1 100755
--- a/testcases/vnf/vIMS/vIMS.py
+++ b/testcases/vnf/vIMS/vIMS.py
@@ -11,28 +11,25 @@
 # http://www.apache.org/licenses/LICENSE-2.0
 ########################################################################
 
-import argparse
 import datetime
 import json
 import os
 import pprint
-import requests
 import subprocess
 import time
-import yaml
 
+import argparse
+import functest.utils.functest_logger as ft_logger
+import functest.utils.functest_utils as functest_utils
+import functest.utils.openstack_utils as os_utils
 import keystoneclient.v2_0.client as ksclient
 import novaclient.client as nvclient
+import requests
 from neutronclient.v2_0 import client as ntclient
 
 from clearwater import clearwater
 from orchestrator import orchestrator
 
-import functest.utils.functest_logger as ft_logger
-import functest.utils.functest_utils as functest_utils
-import functest.utils.openstack_utils as os_utils
-
-
 pp = pprint.PrettyPrinter(indent=4)
 
 
@@ -54,9 +51,7 @@ if not os.path.exists(REPO_PATH):
     logger.error("Functest repository directory not found '%s'" % REPO_PATH)
     exit(-1)
 
-with open(os.environ["CONFIG_FUNCTEST_YAML"]) as f:
-    functest_yaml = yaml.safe_load(f)
-f.close()
+functest_yaml = functest_utils.get_functest_yaml()
 
 # Cloudify parameters
 VIMS_DIR = (REPO_PATH +