Add unit tests for ZusammenElementUtil

Also improve tests for ZusammenAdaptorImplTest

Issue-ID: SDC-2327
Signed-off-by: Marcin Kowalski <m.kowalski3@partner.samsung.com>
Signed-off-by: Krystian Kedron <k.kedron@partner.samsung.com>
Change-Id: Id6c27fd5bb4a651a857cc5bdb55e310709cb4ed3
2 files changed