DummyMailHost must supply getUid() to be compliant with test_getPropertyForUid.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@43438 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5Type/tests/utils.py

@@ -97,6 +97,10 @@ class DummyMailHostMixin(object):
     cls._previous_message = ()
     cls._message_list = []
 
+  @classmethod
+  def getUid(cls):
+    return 0
+
 class DummyMailHost(DummyMailHostMixin, MailHost):
   pass