Added unit tests for versions storing
Added unit tests for versions storing

IljaN/core,IljaN/core,pollopolea/core,pollopolea/core,cernbox/core,nextcloud/server,lrytz/core,endsguy/server,whitekiba/server,Ardinis/server,IljaN/core,andreas-p/nextcloud-server,sharidas/core,owncloud/core,pollopolea/core,IljaN/core,Ardinis/server,cernbox/core,pixelipo/server,jbicha/server,pmattern/server,cernbox/core,xx621998xx/server,pixelipo/server,nextcloud/server,pmattern/server,xx621998xx/server,michaelletzgus/nextcloud-server,whitekiba/server,owncloud/core,lrytz/core,pixelipo/server,owncloud/core,andreas-p/nextcloud-server,pixelipo/server,nextcloud/server,Ardinis/server,andreas-p/nextcloud-server,jbicha/server,pmattern/server,cernbox/core,whitekiba/server,xx621998xx/server,whitekiba/server,bluelml/core,michaelletzgus/nextcloud-server,endsguy/server,sharidas/core,endsguy/server,xx621998xx/server,whitekiba/server,pixelipo/server,xx621998xx/server,andreas-p/nextcloud-server,owncloud/core,bluelml/core,sharidas/core,pollopolea/core,pmattern/server,bluelml/core,sharidas/core,endsguy/server,bluelml/core,lrytz/core,bluelml/core,michaelletzgus/nextcloud-server,nextcloud/server,IljaN/core,michaelletzgus/nextcloud-server,lrytz/core,cernbox/core,endsguy/server,phil-davis/core,andreas-p/nextcloud-server,jbicha/server,lrytz/core,jbicha/server,Ardinis/server,pmattern/server,owncloud/core,jbicha/server,sharidas/core,Ardinis/server,pollopolea/core