diff -r 56e1132f19c3 -r be36811f0d08 cubicweb/server/test/data-migractions/cubes/fakeemail/schema.py
--- a/cubicweb/server/test/data-migractions/cubes/fakeemail/schema.py	Wed Mar 27 16:25:06 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-"""entity/relation schemas to store email in an cubicweb instance
-
-:organization: Logilab
-:copyright: 2006-2013 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
-:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
-"""
-
-from cubicweb import _
-
-# pylint: disable-msg=E0611,F0401
-from yams.buildobjs import (SubjectRelation, RelationType, EntityType,
-                            String, Datetime, Int, RelationDefinition)
-from yams.reader import context
-
-from cubicweb.schema import ERQLExpression
-
-
-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'))
-
-    sender     = SubjectRelation('EmailAddress', cardinality='?*')
-    # an email with only Bcc is acceptable, don't require any recipients
-    recipients = SubjectRelation('EmailAddress')
-    cc         = SubjectRelation('EmailAddress')
-
-    parts       = SubjectRelation('EmailPart', cardinality='*1', composite='subject')
-    attachment  = SubjectRelation('File')
-
-    reply_to    = SubjectRelation('Email', cardinality='?*')
-    cites       = SubjectRelation('Email')
-    in_thread   = SubjectRelation('EmailThread', cardinality='?*')
-
-
-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)
-    alternative = SubjectRelation('EmailPart', symmetric=True)
-
-
-class EmailThread(EntityType):
-    """discussion thread"""
-    title = String(required=True, indexed=True, fulltextindexed=True)
-    see_also = SubjectRelation('EmailThread')
-    forked_from = SubjectRelation('EmailThread', cardinality='?*')
-
-class parts(RelationType):
-    """ """
-    fulltext_container = 'subject'
-
-class sender(RelationType):
-    """ """
-    inlined = True
-
-class in_thread(RelationType):
-    """ """
-    inlined = True
-
-class reply_to(RelationType):
-    """ """
-    inlined = True
-
-class generated_by(RelationType):
-    """mark an entity as generated from an email"""
-    cardinality = '?*'
-    subject = ('TrInfo',)
-    object = 'Email'
-
-# if comment is installed
-if 'Comment' in context.defined:
-    class comment_generated_by(RelationDefinition):
-        subject = 'Comment'
-        name = 'generated_by'
-        object = 'Email'