Clear the cache before running.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4473 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/ERP5TypeTestCase.py

@@ -343,8 +343,12 @@ def setupERP5Site(business_template_list=(), app=None, portal_name=portal_name,
                 portal_activities.tic()
                 get_transaction().commit()
             # Reset aq dynamic, so all unit tests will start again
+            # Also, the cache must be invalidated, because portal methods
+            # must return current information
             from Products.ERP5Type.Base import _aq_reset
+            from Products.ERP5Type.Cache import clearCache
             _aq_reset()
+            clearCache()
             # Log out
             if not quiet: ZopeTestCase._print('Logout ... \n')
             noSecurityManager()