tests: improve memory test
tests: improve memory test

StreamUtils/gstreamer,krichter722/gstreamer,justinjoy/gstreamer,jpxiong/gstreamer,centricular/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,shelsonjava/gstreamer,mparis/gstreamer,lovebug356/gstreamer,collects/gstreamer,justinjoy/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,Lachann/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,centricular/gstreamer,krichter722/gstreamer,collects/gstreamer,jpxiong/gstreamer,cablelabs/gstreamer,lubosz/gstreamer,jpxiong/gstreamer,surround-io/gstreamer,mparis/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,lovebug356/gstreamer,krieger-od/gstreamer,krichter722/gstreamer,jpakkane/gstreamer,centricular/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,shelsonjava/gstreamer,cfoch/gstreamer,mparis/gstreamer,cfoch/gstreamer,centricular/gstreamer,surround-io/gstreamer,Lachann/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,collects/gstreamer,collects/gstreamer,collects/gstreamer,krichter722/gstreamer,Lachann/gstreamer,cfoch/gstreamer,jpakkane/gstreamer,lubosz/gstreamer,justinjoy/gstreamer,ensonic/gstreamer,mparis/gstreamer,StreamUtils/gstreamer,mparis/gstreamer,krieger-od/gstreamer,lovebug356/gstreamer,lubosz/gstreamer,StreamUtils/gstreamer,cfoch/gstreamer,lubosz/gstreamer,StreamUtils/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,centricular/gstreamer,ensonic/gstreamer,jpxiong/gstreamer,jpakkane/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,cfoch/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,Lachann/gstreamer,lovebug356/gstreamer,surround-io/gstreamer,ensonic/gstreamer,Lachann/gstreamer,surround-io/gstreamer