add missing test docstring
add missing test docstring

ericflo/Sia,mharkus/Sia,ChrisSchinnerl/Sia,mnsl/Sia,MrStrong/Sia,mtlynch/Sia,NebulousLabs/Sia,MrStrong/Sia,NebulousLabs/Sia,mnsl/Sia,mharkus/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,ericflo/Sia