def METHOD_NAME(self):
    true_pars = [
        self.amplitude_0,
        self.x_0_0,
        self.fwhm_0,
        self.amplitude_1,
        self.x_0_1,
        self.fwhm_1,
        self.amplitude_2,
        self.x_0_2,
        self.fwhm_2,
        self.whitenoise,
    ]
    assert np.all(np.isclose(true_pars, self.res.p_opt, rtol=0.5))