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)

3 files changed, 6 insertions, 14 deletions

diff --git a/testcases/OpenStack/rally/run_rally-cert.py b/testcases/OpenStack/rally/run_rally-cert.py
index f3eb79d26..43096c19e 100755
--- a/testcases/OpenStack/rally/run_rally-cert.py
+++ b/testcases/OpenStack/rally/run_rally-cert.py
@@ -15,18 +15,17 @@
 #
 """ tests configuration """
 
-import argparse
 import json
 import os
 import re
 import subprocess
 import time
+
+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 iniparse
-import yaml
-
 
 tests = ['authenticate', 'glance', 'cinder', 'heat', 'keystone',
          'neutron', 'nova', 'quotas', 'requests', 'vm', 'all']
@@ -76,9 +75,7 @@ if not os.path.exists(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()
 
 HOME = os.environ['HOME'] + "/"
 RALLY_DIR = REPO_PATH + functest_yaml.get("general").get(
diff --git a/testcases/OpenStack/tempest/run_tempest.py b/testcases/OpenStack/tempest/run_tempest.py
index 306664feb..fbb65dbb7 100755
--- a/testcases/OpenStack/tempest/run_tempest.py
+++ b/testcases/OpenStack/tempest/run_tempest.py
@@ -60,9 +60,7 @@ logger = ft_logger.Logger("run_tempest").getLogger()
 
 REPO_PATH = os.environ['repos_dir'] + '/functest/'
 
-with open(os.environ["CONFIG_FUNCTEST_YAML"]) as f:
-    functest_yaml = yaml.safe_load(f)
-f.close()
+functest_yaml = ft_utils.get_functest_yaml()
 TEST_DB = functest_yaml.get("results").get("test_db_url")
 
 MODE = "smoke"
diff --git a/testcases/OpenStack/vPing/vping_util.py b/testcases/OpenStack/vPing/vping_util.py
index 3f4adae73..8e9ce23ec 100644
--- a/testcases/OpenStack/vPing/vping_util.py
+++ b/testcases/OpenStack/vPing/vping_util.py
@@ -1,6 +1,6 @@
 import os
-import re
 import pprint
+import re
 import sys
 import time
 
@@ -8,13 +8,10 @@ import functest.utils.functest_utils as ft_utils
 import functest.utils.openstack_utils as os_utils
 import paramiko
 from scp import SCPClient
-import yaml
 
 REPO_PATH = os.environ['repos_dir'] + '/functest/'
 
-with open(os.environ["CONFIG_FUNCTEST_YAML"]) as f:
-    functest_yaml = yaml.safe_load(f)
-f.close()
+functest_yaml = ft_utils.get_functest_yaml()
 
 NAME_VM_1 = functest_yaml.get("vping").get("vm_name_1")
 NAME_VM_2 = functest_yaml.get("vping").get("vm_name_2")