Standardized TRex client library path

- path should be defined via TREX_CLIENT_LIB environmental variable e.g. TREX_CLIENT_LIB=/opt/trex_client/stl
- refactored unit tests

Change-Id: I18767e48daf774432c010f1b88d18a4f0ee4e156
Signed-off-by: Maciej Skrocki <maciej.skrocki@intel.com>
Signed-off-by: Ross Brattain <ross.b.brattain@intel.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/yardstick/benchmark/scenarios/networking/vnf_generic.py b/yardstick/benchmark/scenarios/networking/vnf_generic.py
index 18a75d070..aecc228bc 100644
--- a/yardstick/benchmark/scenarios/networking/vnf_generic.py
+++ b/yardstick/benchmark/scenarios/networking/vnf_generic.py
@@ -14,13 +14,13 @@
 """ NSPerf specific scenario definition """
 
 from __future__ import absolute_import
-import logging
 
+import logging
 import errno
 
 import ipaddress
 import os
-
+import sys
 import re
 from itertools import chain
 
@@ -35,8 +35,10 @@ from yardstick.network_services.collector.subscriber import Collector
 from yardstick.network_services.vnf_generic import vnfdgen
 from yardstick.network_services.vnf_generic.vnf.base import GenericVNF
 from yardstick.network_services.traffic_profile.base import TrafficProfile
+from yardstick.network_services.utils import get_nsb_option
 from yardstick import ssh
 
+
 LOG = logging.getLogger(__name__)
 
 
@@ -439,6 +441,9 @@ printf "%s/driver:" $1 ; basename $(readlink -s $1/device/driver); } \
         :param context_cfg:
         :return:
         """
+        trex_lib_path = get_nsb_option('trex_client_lib')
+        sys.path[:] = list(chain([trex_lib_path], (x for x in sys.path if x != trex_lib_path)))
+
         if scenario_cfg is None:
             scenario_cfg = self.scenario_cfg