OSIS-5469-fix1 fix test_perms.py by generating calendars
OSIS-5469-fix1 fix test_perms.py by generating calendars

uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/osis,uclouvain/osis,uclouvain/OSIS-Louvain,uclouvain/OSIS-Louvain,uclouvain/osis