Try to avoid race condition problems in unittests
diff --git a/src/emuvim/test/api_base_openstack.py b/src/emuvim/test/api_base_openstack.py
index c62f80f..6fb9b49 100755
--- a/src/emuvim/test/api_base_openstack.py
+++ b/src/emuvim/test/api_base_openstack.py
@@ -34,6 +34,7 @@
 import os
 import subprocess
 import docker
+import time
 from emuvim.dcemulator.net import DCNetwork
 from emuvim.api.openstack.openstack_api_endpoint import OpenstackApiEndpoint
 from mininet.clean import cleanup
@@ -136,6 +137,7 @@
 
 
     def tearDown(self):
+        time.sleep(2)
         print('->>>>>>> tear everything down ->>>>>>>>>>>>>>>')
         self.stopApi() # stop all flask threads
         self.stopNet() # stop some mininet and containernet stuff
@@ -153,6 +155,7 @@
                 stdout=devnull,
                 stderr=devnull,
                 shell=True)
+        time.sleep(2)