memcache: make base testcase abstract
memcache: make base testcase abstract

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