Import "traffic_profile" modules only once

"traffic_profile" modules should be imported only once. Every time
TrafficProfile.get is called, the modules under
"yardstick.network_services.traffic_profiles" are loaded [1]. Instead
of this, the modules should be registered only once the first time
"yardstick.network_services.traffic_profiles.base" is loaded. This
will reduce the execution time and will avoid unnecessary calls.

[1] https://github.com/opnfv/yardstick/blob/d2c7cc4e9768ed003257a95c92cdb278d516761b/yardstick/network_services/traffic_profile/base.py#L36-L37

JIRA: YARDSTICK-951

Change-Id: Ia3565378ba3a1377fcb0aea8bda50ef8189414fd
Signed-off-by: Rodolfo Alonso Hernandez <rodolfo.alonso.hernandez@intel.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
index e9f718cb7..aeabc367a 100644
--- a/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
+++ b/tests/unit/network_services/vnf_generic/vnf/test_tg_rfc2544_ixia.py
@@ -16,8 +16,10 @@
 #
 
 import os
-import unittest
+
 import mock
+import six
+import unittest
 
 from tests.unit import STL_MOCKS
 
@@ -341,7 +343,7 @@ class TestIXIATrafficGen(unittest.TestCase):
             'task_path': '/path/to/task'
         }
 
-        @mock.patch('yardstick.benchmark.scenarios.networking.vnf_generic.open', create=True)
+        @mock.patch.object(six.moves.builtins, 'open', create=True)
         @mock.patch('yardstick.network_services.vnf_generic.vnf.tg_rfc2544_ixia.open',
                     mock.mock_open(), create=True)
         @mock.patch('yardstick.network_services.vnf_generic.vnf.tg_rfc2544_ixia.LOG.exception')