可以使用async/await或者.then()方法来处理构造函数的返回值。

示例代码：

// 使用async/await处理MockAdapter构造函数返回的promise import axios from 'axios' import MockAdapter from 'axios-mock-adapter'

describe('test mock axios', () => { let mock

beforeEach(() => { mock = new MockAdapter(axios) })

afterEach(() => { mock.restore() })

it('should mock axios', async () => { mock.onGet('http://test.com').reply(200, { message: 'mocked' })

const res = await axios.get('http://test.com')

expect(res.data.message).toBe('mocked')

}) })

// 使用.then()方法处理MockAdapter构造函数返回的promise import axios from 'axios' import MockAdapter from 'axios-mock-adapter'

describe('test mock axios', () => { let mock

beforeEach(() => { mock = new MockAdapter(axios) })

afterEach(() => { mock.restore() })

it('should mock axios', () => { mock.onGet('http://test.com').reply(200, { message: 'mocked' })

axios
  .get('http://test.com')
  .then(res => {
    expect(res.data.message).toBe('mocked')
  })
  .catch(err => {
    console.log(err)
  })

}) })