如何在redux中对异步调用进行单元测试/存根

npm install --save-dev redux-mock-store

import configureMockStore from 'redux-mock-store';
import thunk from 'redux-thunk';
import { fetchUser } from './actions';

const middlewares = [thunk];
const mockStore = configureMockStore(middlewares);

describe('Async actions', () => {
  it('should dispatch the correct actions on successful API call', () => {
    const store = mockStore({}); // 创建一个模拟store

    return store.dispatch(fetchUser()).then(() => {
      const actions = store.getActions();
      expect(actions[0]).toEqual({ type: 'FETCH_USER_REQUEST' });
      expect(actions[1]).toEqual({ type: 'FETCH_USER_SUCCESS', payload: { /* 用户数据 */ } });
    });
  });
});