我有一个redux-thunk动作,其中包含多个API请求,这些请求从一个端点获取数据以从另一个端点获取其他相关数据,并且我还进行了一些数组转换,以将某些数据合并在一起。
尽管我不确定这是否是最佳实践,但就目前而言,它满足了我的需求。但是,由于我不确定要测试的正确方法,因此很难进行测试。我搜寻了互联网并查看了“ thunk”测试的许多不同变体,但到目前为止,我的每种方法都失败了。
我将非常感谢一些有关如何测试重击动作(例如我的动作)的指南,或者可能有更好的实践,以帮助我简化测试。
我的重击动作...
export const fetchTopStreamsStartAsync = () => {
return async dispatch => {
try {
const headers = {
'Client-ID': process.env.CLIENT_ID
};
const url = 'https://api.twitch.tv/helix/streams?first=5';
const userUrl = 'https://api.twitch.tv/helix/users?';
let userIds = '';
dispatch(fetchTopStreamsStart());
const response = await axios.get(url, { headers });
const topStreams = response.data.data;
topStreams.forEach(stream => (userIds += `id=${stream.user_id}&`));
userIds = userIds.slice(0, -1);
const userResponse = await axios.get(userUrl + userIds, { headers });
const users = userResponse.data.data;
const completeStreams = topStreams.map(stream => {
stream.avatar = users.find(
user => user.id === stream.user_id
).profile_image_url;
return stream;
});
const mappedStreams = completeStreams.map(
({ thumbnail_url, ...rest }) => ({
...rest,
thumbnail: thumbnail_url.replace(/{width}x{height}/gi, '1280x720')
})
);
dispatch(fetchTopStreamsSuccess(mappedStreams));
} catch (error) {
dispatch(fetchTopStreamsFail(error.message));
}
};
};
失败的许多测试方法之一...
import configureMockStore from 'redux-mock-store';
import thunk from 'redux-thunk';
import axios from 'axios';
import moxios from 'moxios';
import {
fetchTopStreamsStart,
fetchTopStreamsSuccess,
fetchTopStreamsStartAsync
} from './streams.actions';
const mockStore = configureMockStore([thunk]);
describe('thunks', () => {
describe('fetchTopStreamsStartAsync', () => {
beforeEach(() => {
moxios.install();
});
afterEach(() => {
moxios.uninstall();
});
it('creates both fetchTopStreamsStart and fetchTopStreamsSuccess when api call succeeds', () => {
const responsePayload = [{ id: 1 }, { id: 2 }, { id: 3 }];
moxios.wait(() => {
const request = moxios.requests.mostRecent();
request.respondWith({
status: 200,
response: responsePayload
});
});
const store = mockStore();
const expectedActions = [
fetchTopStreamsStart(),
fetchTopStreamsSuccess(responsePayload)
];
return store.dispatch(fetchTopStreamsStartAsync()).then(() => {
// return of async actions
expect(store.getActions()).toEqual(expectedActions);
});
});
});
});
这是我在接收值的失败测试中遇到的错误...
+ "payload": "Cannot read property 'forEach' of undefined",
+ "type": "FETCH_TOP_STREAMS_FAIL",
UPDATE:如@mgarcia所建议,我将responsePayload
的格式从[{ id: 1 }, { id: 2 }, { id: 3 }]
更改为{ data: [{ id: 1 }, { id: 2 }, { id: 3 }] }
,现在我没有收到初始错误,但是现在收到以下错误:] >
: Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.Timeout - Async callback was not invoked within the 5000ms timeout specified by jest.setTimeout.Error:
我仍然不了解的是,测试是否必须复制多个API调用的确切结构,或者仅模拟一个响应就足够了?我仍在尝试找出
Async callback...
错误的原因。
我有一个redux-thunk动作,其中包含多个API请求,这些请求将从一个端点获取的数据从另一个端点获取其他相关数据,并且我也有几个数组...
您正在通过moxios模拟axios请求,但似乎您没有以预期的格式返回数据。