Use "No VPP PID found on node X" when vpp pid is not returned

Change-Id: Idfe6d674355bf57fdc24219cdaf8664ec23dfce9
Signed-off-by: Jan Gelety <jgelety@cisco.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/resources/libraries/python/DUTSetup.py b/resources/libraries/python/DUTSetup.py
index 1f87f03cb9..275a546fd8 100644
--- a/resources/libraries/python/DUTSetup.py
+++ b/resources/libraries/python/DUTSetup.py
@@ -123,10 +123,14 @@ class DUTSetup(object):
             raise RuntimeError('Not possible to get PID of VPP process on node:'
                                ' {}'.format(node['host']))
 
-        if len(stdout.splitlines()) != 1:
+        if len(stdout.splitlines()) == 1:
+            return int(stdout)
+        elif len(stdout.splitlines()) == 0:
+            raise RuntimeError("No VPP PID found on node {0}".
+                               format(node['host']))
+        else:
             raise RuntimeError("More then one VPP PID found on node {0}".
                                format(node['host']))
-        return int(stdout)
 
     @staticmethod
     def get_vpp_pids(nodes):