change number of test for degree check.
change number of test for degree check.

SteamShon/incubator-s2graph,daewon/incubator-s2graph,jongwook/incubator-s2graph,jongwook/incubator-s2graph,SteamShon/incubator-s2graph,SteamShon/incubator-s2graph,daewon/incubator-s2graph