def METHOD_NAME(self):
    dfbuilder = rsdf._RSGDFBuilder(cell, auxcell)
    dfbuilder.__dict__.update(dfobj.__dict__)
    dfbuilder.build()
    j2c = dfbuilder.get_2c2e(np.zeros((1, 3)))
    self.assertAlmostEqual(lib.fp(j2c), -8.240595211369692, 9)