[controller] UndoController: fix output method (closes: #1776091)
Fix buggy direct output in `UndoController.publish()`.
Raise now a ValidationError instead of malformed string
Changes:
* raise ValidationError when an error occured in undo
* use the new message mechanism based on _cwmsgid
If errors are not fatal, you have to change publish() method.
# Run all scenarii found in windmill directory
from os.path import join, dirname
from cubicweb.devtools.cwwindmill import (CubicWebWindmillUseCase,
unittest_main)
class CubicWebWindmillUseCase(CubicWebWindmillUseCase):
#test_dir = join(dirname(__file__), "windmill/test_edit_relation.py")
pass
if __name__ == '__main__':
unittest_main()