我遇到了测试异步redux操作(使用thunk)的问题,因为browserHistory
未定义,因此会抛出错误。
(为简洁而修改的代码)
actions.js
import { browserHistory } from 'react-router'
import axios from 'axios'
export function foo() {
return dispatch => {
return axios.post('/foo')
.then(res => { dispatch(something); browserHistory.push('/') })
.catch(err => { dispatch(somethingError) }
}
}
测试/ actions.js
import nock from 'nock'
import configureMockStore from 'redux-mock-store'
import thunk from 'redux-thunk'
const mockStore = configureMockStore([thunk])
describe('foo succeeds', () => {
nock('localhost:300')
.post('/foo')
.reply(200)
const store = mockStore()
return store.dispatch(actions.foo())
.then(expect(store.getActions()).to.equal(something))
})
这当然会导致TypeError: Cannot read property 'push' of undefined
,这会提示未经处理的承诺拒绝。有什么方法可以模拟browserHistory
或在测试中优雅地处理错误吗?
答案 0 :(得分:3)
原来是一个简单的修复。在您的测试文件中,您可以模拟react-router:
import * as router from 'react-router'
router.browserHistory = { push: () => {} }