Bug 28676: Unit test

Bug 28676: Unit test

Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org>
Signed-off-by: Joonas Kylmälä <joonas.kylmala@iki.fi>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 869f1c758cb78454c48e180f1533893b5dcb5d11)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 97dcf5ded6fa6602ee645f3f6431b52b843bc8b9)
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>