added more unittests for the group file
added more unittests for the group file

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