diff -r 91fbd3111828 -r 7099bbd685aa server/test/data/schema.py
--- a/server/test/data/schema.py	Tue Jul 29 14:40:29 2014 +0200
+++ b/server/test/data/schema.py	Tue Jan 28 15:27:59 2014 +0100
@@ -1,4 +1,4 @@
-# copyright 2003-2013 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
+# copyright 2003-2014 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
 #
 # This file is part of CubicWeb.
@@ -110,6 +110,23 @@
                                                                'S,Y')])
     todo_by = SubjectRelation('CWUser')
 
+
+class Frozable(EntityType):
+    __permissions__ = {
+        'read':   ('managers', 'users'),
+        'add':    ('managers', 'users'),
+        'update': ('managers', ERQLExpression('X frozen False'),),
+        'delete': ('managers', ERQLExpression('X frozen False'),)
+    }
+    name = String()
+    frozen = Boolean(default=False,
+                     __permissions__ = {
+                         'read':   ('managers', 'users'),
+                         'add':    ('managers', 'users'),
+                         'update': ('managers', 'owners')
+                         })
+
+
 class Personne(EntityType):
     __unique_together__ = [('nom', 'prenom', 'inline2')]
     nom    = String(fulltextindexed=True, required=True, maxsize=64)