tests: fix unit test
tests: fix unit test

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