restore call of getPortal because it restore SKINDATA in REQUEST

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@35425 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/ProcessingNodeTestCase.py

+# -*- coding: utf-8 -*-
 import base64, errno, select, socket, time
 from threading import Thread
 import Lifetime
@@ -114,7 +115,7 @@ class ProcessingNodeTestCase(backportUnittest.TestCase, ZopeTestCase.TestCase):
 
   def tic(self, verbose=0):
     """Execute pending activities"""
-    portal_activities = self.portal.portal_activities
+    portal_activities = self.getPortal().portal_activities
     if 1:
       if verbose:
         ZopeTestCase._print('Executing pending activities ...')