add unit tests for ordering and acronym display/undisplay
add unit tests for ordering and acronym display/undisplay

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