NSB NFVi BNG test fails to run - stops after one step

JIRA: YARDSTICK-1244

When sending the start or stop command to PROX. We sould not send the same core.
We should not send "start 1,1" instead we should send "start 1"

Change-Id: Ie600dc3ed808fd00341e92f13bd52199e68dc51f
Signed-off-by: Daniel Martin Buckley <daniel.m.buckley@intel.com>

2 files changed, 17 insertions, 4 deletions

diff --git a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
index 7816c6d91..5c12e0c1f 100644
--- a/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
+++ b/yardstick/network_services/vnf_generic/vnf/prox_helpers.py
@@ -398,8 +398,14 @@ class ProxSocketHelper(object):
 
     def stop(self, cores, task=''):
         """ stop specific cores on the remote instance """
-        LOG.debug("Stopping cores %s", cores)
-        self.put_command("stop {} {}\n".format(join_non_strings(',', cores), task))
+
+        tmpcores = []
+        for core in cores:
+            if core not in tmpcores:
+                tmpcores.append(core)
+
+        LOG.debug("Stopping cores %s", tmpcores)
+        self.put_command("stop {} {}\n".format(join_non_strings(',', tmpcores), task))
         time.sleep(3)
 
     def start_all(self):
@@ -409,8 +415,14 @@ class ProxSocketHelper(object):
 
     def start(self, cores):
         """ start specific cores on the remote instance """
-        LOG.debug("Starting cores %s", cores)
-        self.put_command("start {}\n".format(join_non_strings(',', cores)))
+
+        tmpcores = []
+        for core in cores:
+            if core not in tmpcores:
+                tmpcores.append(core)
+
+        LOG.debug("Starting cores %s", tmpcores)
+        self.put_command("start {}\n".format(join_non_strings(',', tmpcores)))
         time.sleep(3)
 
     def reset_stats(self):
diff --git a/yardstick/tests/unit/common/test_utils.py b/yardstick/tests/unit/common/test_utils.py
index 6e7a0bfc4..6247afd18 100644
--- a/yardstick/tests/unit/common/test_utils.py
+++ b/yardstick/tests/unit/common/test_utils.py
@@ -19,6 +19,7 @@ from six.moves import configparser
 import time
 import unittest
 
+import yardstick
 from yardstick import ssh
 from yardstick.common import constants
 from yardstick.common import utils