如何测试Redux-Thunk使用单元测试笑话的动作? [英] How can I test Action of Redux-Thunk use Unit Test Jest?

问题描述

我刚开始使用 Jest 对 Redux-thunk 的动作进行单元测试.

I'm new to unittesting a Action of Redux-thunk use Jest.

以下是代码:

export const functionA = (a,b) => (dispatch) =>{
    dispatch ({type: CONSTANT_A, payload: a});
    dispatch ({type: CONSTANT_B, payload: b});
} 

如何使用 Unit-Test Jest 测试该功能?任何人都可以帮助我^^.在此先感谢:)

How can i test for the function use Unit-Test Jest ? Anyone can help me ^^. Thank in advance :)

推荐答案

您在Redux文档中有一个示例:

You have an example in the Redux docs: http://redux.js.org/docs/recipes/WritingTests.html#async-action-creators

import configureMockStore from 'redux-mock-store'
import thunk from 'redux-thunk'
const middlewares = [thunk]
const mockStore = configureMockStore(middlewares)

describe('async actions', () => {

  it('should dispatch actions of ConstantA and ConstantB', () => {
    const expectedActions = [
      {type: CONSTANT_A, payload: 'a'},
      {type: CONSTANT_B, payload: 'b'} 
    ]

    const store = mockStore({ yourInitialState })
    store.dispatch(actions.functionA('a', 'b'))

    expect(store.getActions()).toEqual(expectedActions)
  })
})

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