fix test failure
fix test failure

Agent007/deepchem,miaecle/deepchem,deepchem/deepchem,ktaneishi/deepchem,rbharath/deepchem,joegomes/deepchem,deepchem/deepchem,ktaneishi/deepchem,peastman/deepchem,lilleswing/deepchem,Agent007/deepchem,rbharath/deepchem,ktaneishi/deepchem,Agent007/deepchem,miaecle/deepchem,peastman/deepchem,lilleswing/deepchem,miaecle/deepchem,lilleswing/deepchem,joegomes/deepchem