Bug 27724: Add unit test

Bug 27724: Add unit test

Run t/db_dependent/Koha/SearchEngine/Elasticsearch/QueryBuilder.t

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Victor Grousset/tuxayo <victor@tuxayo.net>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
(cherry picked from commit cb3c3d56855e001bf608a3bf157c087e655c5c04)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>
(cherry picked from commit 4052948d7cada6b3adb38ca41e158a75bd20f406)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>