Added test for adding nodes with new keys
Added test for adding nodes with new keys

dekujs/deku,IveWong/deku,balaprasanna/deku,evilemon/deku,joshrtay/deku,sunriseshow/deku,balaprasanna/deku,ashaffer/deku,ulrikaugustsson/deku,oeb25/deku,joshrtay/deku,stonegithubs/deku,kvnneff/deku,ggd543/deku