def METHOD_NAME(self):
    options = {"open-circuit potential": ("current sigmoid", "single")}
    model = pybamm.lithium_ion.MPM(options)
    parameter_values = pybamm.ParameterValues("Chen2020")
    parameter_values = pybamm.get_size_distribution_parameters(parameter_values)
    parameter_values.update(
        {
            "Negative electrode lithiation OCP [V]"
            "": parameter_values["Negative electrode OCP [V]"],
            "Negative electrode delithiation OCP [V]"
            "": parameter_values["Negative electrode OCP [V]"],
        },
        check_already_exists=False,
    )
    modeltest = tests.StandardModelTest(model, parameter_values=parameter_values)
    modeltest.test_all(skip_output_tests=True)