def METHOD_NAME(self):
    mf = dft.UKS(h4)
    mf.grids.level = 4
    mf.xc = 'b3lyp'
    mf.conv_tol = 1e-14
    mf.kernel()
    hobj = mf.Hessian()
    e2 = hobj.partial_hess_elec(mf.mo_energy, mf.mo_coeff, mf.mo_occ)
    e2 += hobj.hess_nuc(h4)
    e2ref = finite_partial_diff(mf)
    self.assertAlmostEqual(abs(e2-e2ref).max(), 0, 6)