Bug 18958: Unit tests

Bug 18958: Unit tests

Signed-off-by: Bonnie Gardner <bgardner@cityoflewiston.org>
Signed-off-by: Bouzid Fergani <bouzid.fergani@inlibro.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
Signed-off-by: Marcel de Rooy <m.de.rooy@rijksmuseum.nl>
JD amended patch: perltidy and simplify item/biblio creation

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit 7ee2495f321198548b3ffbf983aa1d13f6c6c2cc)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>