def METHOD_NAME(run_in_tmpdir, model):
    """Tests transfer depletion class without neither reaction rates nor decay
    but only transfer rates"""
    # create transfer rate for U
    element = ['U']
    transfer_rate = 1e-5
    op = CoupledOperator(model, CHAIN_PATH)
    integrator = openmc.deplete.PredictorIntegrator(
        op, [1,1], 0.0, timestep_units = 'd')
    integrator.add_transfer_rate('f', element, transfer_rate)
    integrator.integrate()
    # Get number of U238 atoms from results
    results = openmc.deplete.Results('depletion_results.h5')
    _, atoms = results.get_atoms(model.materials[0], "U238")
    # Ensure number of atoms equal transfer decay
    assert atoms[1] == pytest.approx(atoms[0]*exp(-transfer_rate*3600*24))
    assert atoms[2] == pytest.approx(atoms[1]*exp(-transfer_rate*3600*24))