--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/hooks/test/data/schema.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,85 @@
+# 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.
+#
+# CubicWeb is free software: you can redistribute it and/or modify it under the
+# terms of the GNU Lesser General Public License as published by the Free
+# Software Foundation, either version 2.1 of the License, or (at your option)
+# any later version.
+#
+# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Lesser General Public License along
+# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
+
+from yams.buildobjs import (RelationDefinition, RelationType, EntityType,
+                            String, Datetime, Int)
+from yams.reader import context
+
+from cubicweb.schema import ERQLExpression
+
+from cubicweb import _
+
+class friend(RelationDefinition):
+    subject = ('CWUser', 'CWGroup')
+    object = ('CWUser', 'CWGroup')
+    symmetric = True
+
+class Folder(EntityType):
+    name = String()
+
+class parent(RelationDefinition):
+    subject = 'Folder'
+    object = 'Folder'
+    composite = 'object'
+    cardinality = '?*'
+
+class children(RelationDefinition):
+    subject = 'Folder'
+    object = 'Folder'
+    composite = 'subject'
+
+
+class Email(EntityType):
+    """electronic mail"""
+    subject   = String(fulltextindexed=True)
+    date      = Datetime(description=_('UTC time on which the mail was sent'))
+    messageid = String(required=True, indexed=True)
+    headers   = String(description=_('raw headers'))
+
+
+
+class EmailPart(EntityType):
+    """an email attachment"""
+    __permissions__ = {
+        'read':   ('managers', 'users', 'guests',), # XXX if E parts X, U has_read_permission E
+        'add':    ('managers', ERQLExpression('E parts X, U has_update_permission E'),),
+        'delete': ('managers', ERQLExpression('E parts X, U has_update_permission E')),
+        'update': ('managers', 'owners',),
+        }
+
+    content  = String(fulltextindexed=True)
+    content_format = String(required=True, maxsize=50)
+    ordernum = Int(required=True)
+
+
+class parts(RelationType):
+    subject = 'Email'
+    object = 'EmailPart'
+    cardinality = '*1'
+    composite = 'subject'
+    fulltext_container = 'subject'
+
+class sender(RelationDefinition):
+    subject = 'Email'
+    object = 'EmailAddress'
+    cardinality = '?*'
+    inlined = True
+
+class recipients(RelationDefinition):
+    subject = 'Email'
+    object = 'EmailAddress'