[ikenna] added test to verify child unique id
[ikenna] added test to verify child unique id

mwangiann/RapidFTR,sriprasanna/RapidFTR,sorashiro/RapidFTR,sferik/RapidFTR,ctumwebaze/RapidFTR,timothyakampa/RapidFTR,tomclement/RapidFTR,sferik/RapidFTR,austiine04/RapidFTR,tomclement/RapidFTR,rapidftr/RapidFTR,timothyakampa/RapidFTR,timothyakampa/RapidFTR,mwangiann/RapidFTR,rapidftr/RapidFTR,austiine04/RapidFTR,tomclement/RapidFTR,sriprasanna/RapidFTR,rapidftr/RapidFTR,ctumwebaze/RapidFTR,timothyakampa/RapidFTR,tomclement/RapidFTR,ctumwebaze/RapidFTR,sorashiro/RapidFTR,rapidftr/RapidFTR,austiine04/RapidFTR,sriprasanna/RapidFTR,sferik/RapidFTR,sriprasanna/RapidFTR,austiine04/RapidFTR,mwangiann/RapidFTR,mwangiann/RapidFTR,ctumwebaze/RapidFTR,sorashiro/RapidFTR,sorashiro/RapidFTR