Я пытаюсь написать какой-нибудь тест, использующий реагирование, redux-mock-store и redux, но я продолжаю получать ошибки. Может быть, потому что мое Promise
еще не выполнено?
Создатель действия fetchListing()
фактически работает, когда я пробую его на dev и production, но у меня возникают проблемы при прохождении теста.
сообщение об ошибке
(node:19143) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 3): SyntaxError
(node:19143) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
FAIL src/actions/__tests__/action.test.js
● async actions › creates "FETCH_LISTINGS" when fetching listing has been done
TypeError: Cannot read property 'then' of undefined
at Object.<anonymous> (src/actions/__tests__/action.test.js:44:51)
at Promise (<anonymous>)
at Promise.resolve.then.el (node_modules/p-map/index.js:42:16)
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:169:7)
async actions
✕ creates "FETCH_LISTINGS" when fetching listing has been done (10ms)
Действие /index.js
// actions/index.js
import axios from 'axios';
import { FETCH_LISTINGS } from './types';
export function fetchListings() {
const request = axios.get('/5/index.cfm?event=stream:listings');
return (dispatch) => {
request.then(( { data } ) => {
dispatch({ type: FETCH_LISTINGS, payload: data });
});
}
};
action.test.js
// actions/__test__/action.test.js
import configureMockStore from 'redux-mock-store';
import thunk from 'redux-thunk';
import { applyMiddleware } from 'redux';
import nock from 'nock';
import expect from 'expect';
import * as actions from '../index';
import * as types from '../types';
const middlewares = [ thunk ];
const mockStore = configureMockStore(middlewares);
describe('async actions', () => {
afterEach(() => {
nock.cleanAll()
})
it('creates "FETCH_LISTINGS" when fetching listing has been done', () => {
nock('http://example.com/')
.get('/listings')
.reply(200, { body: { listings: [{ 'corpo_id': 5629, id: 1382796, name: 'masm' }] } })
const expectedActions = [
{ type: types.FETCH_LISTINGS }, { body: { listings: [{ 'corpo_id': 5629, id: 1382796, name: 'masm' }] }}
]
const store = mockStore({ listings: [] })
return store.dispatch(actions.fetchListings()).then((data) => {
expect(store.getActions()).toEqual(expectedActions)
})
})
})