def test_atomic_weight(): feq_(atomic_weight('H'), 1.00794) npeq_(atomic_weight(['O', 'H', 'H']), [15.9994, 1.00794, 1.00794])
def test_vdw_radius(): feq_(vdw_radius('H'), 0.11) npeq_(vdw_radius(['O', 'H', 'H']), [0.152, 0.11, 0.11])