[web/test] use unicode object as user login
(py.warnings) WARNING: /home/jcr/src/cw/cubicweb/devtools/testlib.py:206: DeprecationWarning: Sanitizing an input dictionary with str values, please check your data (key = 'login')
from cubicweb.schemas.base import in_group, CWSourceSchemaConfig
# copy __permissions__ to avoid modifying a shared dictionary
in_group.__permissions__ = in_group.__permissions__.copy()
in_group.__permissions__['read'] = ('managers',)
cw_for_source = CWSourceSchemaConfig.get_relation('cw_for_source')
cw_for_source.__permissions__ = {'read': ('managers', 'users'),
'add': ('managers',),
'delete': ('managers',)}