Test redux-actions

Please help me with writing unit tests

How can I test with Jest this file with React-redux actions:

import { combineReducers } from 'redux';
import { handleActions } from 'redux-actions';
import * as actions from '../actions/index';

const background = handleActions({
  [actions.changeBackgroundType](state, { payload: { type } }) {
    return { ...state, type };
  },
  [actions.addGradientStart](state, { payload: { color } }) {
    return { ...state, color1: color };
  },
  [actions.addGradientEnd](state, { payload: { color } }) {
    return { ...state, color2: color };
  },
}, { type: 'none', color1: '#ffffff', color2: '#ffffff' });

const url = handleActions({
  [actions.addUrl](state, { payload: { url: newUrl } }) {
    return newUrl;
  },
}, '');


export default combineReducers({
  background,
  url,
});

Сould not find on the Internet how to test actions if I use 'redux-actions' library