Get properly env vars or their default values

It defines env.get() as an unique way to get Functest env vars or
their default values. It can be considered as a wrapper above os.environ.

It enforces backward compatibility via CONST which mustn't be used
for that purpose. It should be noted that it also stops using CONST
for getting OpenStack env vars.

Change-Id: I333dc1afbc0123166a7eaff8b551370098efa341
Signed-off-by: Cédric Ollivier <cedric.ollivier@orange.com>

1 files changed, 5 insertions, 6 deletions

diff --git a/functest/opnfv_tests/sdn/odl/odl.py b/functest/opnfv_tests/sdn/odl/odl.py
index 4c33c4957..705f39dab 100644
--- a/functest/opnfv_tests/sdn/odl/odl.py
+++ b/functest/opnfv_tests/sdn/odl/odl.py
@@ -31,6 +31,7 @@ from snaps.openstack.utils import keystone_utils
 from functest.core import robotframework
 from functest.opnfv_tests.openstack.snaps import snaps_utils
 from functest.utils import constants
+from functest.utils import env
 
 __author__ = "Cedric Ollivier <cedric.ollivier@orange.com>"
 
@@ -165,9 +166,7 @@ class ODLTests(robotframework.RobotFramework):
             kwargs['odlrestconfport'] = '8181'
             kwargs['odlusername'] = 'admin'
             kwargs['odlpassword'] = 'admin'
-            installer_type = None
-            if 'INSTALLER_TYPE' in os.environ:
-                installer_type = os.environ['INSTALLER_TYPE']
+            installer_type = env.get('INSTALLER_TYPE')
             kwargs['osusername'] = os.environ['OS_USERNAME']
             kwargs['osuserdomainname'] = os.environ.get(
                 'OS_USER_DOMAIN_NAME', 'Default')
@@ -180,17 +179,17 @@ class ODLTests(robotframework.RobotFramework):
                 kwargs['odlwebport'] = '8181'
                 kwargs['odlrestconfport'] = '8282'
             elif installer_type == 'apex' or installer_type == 'netvirt':
-                kwargs['odlip'] = os.environ['SDN_CONTROLLER_IP']
+                kwargs['odlip'] = env.get('SDN_CONTROLLER_IP')
                 kwargs['odlwebport'] = '8081'
                 kwargs['odlrestconfport'] = '8081'
             elif installer_type == 'compass':
                 kwargs['odlrestconfport'] = '8080'
             elif installer_type == 'daisy':
-                kwargs['odlip'] = os.environ['SDN_CONTROLLER_IP']
+                kwargs['odlip'] = env.get('SDN_CONTROLLER_IP')
                 kwargs['odlwebport'] = '8181'
                 kwargs['odlrestconfport'] = '8087'
             else:
-                kwargs['odlip'] = os.environ['SDN_CONTROLLER_IP']
+                kwargs['odlip'] = env.get('SDN_CONTROLLER_IP')
         except KeyError as ex:
             self.__logger.error("Cannot run ODL testcases. "
                                 "Please check env var: "