def METHOD_NAME(self, caplog):
    fw = deepcopy(self.solver.first_wall)
    self.solver.flux_surfaces_ob_hfs = []
    self.solver.flux_surfaces_ob_lfs = []
    x_sep_omp, x_wall_limit = self.solver._get_sep_out_intersection(outboard=True)
    x = x_sep_omp + 1e-3
    while x < x_wall_limit + 2e-3:
        lfs, hfs = self.solver._make_flux_surfaces(x, self.solver._o_point.z)
        self.solver.flux_surfaces_ob_lfs.append(lfs)
        self.solver.flux_surfaces_ob_hfs.append(hfs)
        x += 1e-3
    fs_before_pop = self.solver.flux_surfaces
    self.solver._clip_flux_surfaces(fw)
    fs_after_pop = self.solver.flux_surfaces
    assert len(fs_before_pop) > len(fs_after_pop)
    assert "No intersection detected" in caplog.text