koa/supertest - server.close 不是 function

Question

我看過以前的帖子，問題是您需要導出實例才能在服務器上調用close() 。 我已經嘗試過了，但是我仍然收到該錯誤

索引.ts

import * as Koa from "koa"
import * as logger from "koa-logger"
import * as json from "koa-json"
import * as bodyParser from "koa-bodyparser"
import * as cors from "koa-cors"
import errorHandler from "./middlewares/errorhandler.middleware"
import router from "./routes"

const PORT = process.env.PORT || 3000;
const ENV = process.env.NODE_ENV || 'development';
const app = new Koa()

app
    .use(logger())
    .use(bodyParser())
    .use(errorHandler)
    .use(router.routes())
    .use(router.allowedMethods())
    .use(json())
    .use(cors())


    export const server = app.listen(PORT, (): void => console.log(`🌍 Server listening on port ${PORT} - ${ENV} environment`))

我也嘗試過不同的導出方式

const appServer = app.listen(...)
export default appServer

測試文件

const request = require('supertest');
const server = require('../index');
beforeAll(async () => {
 // do something before anything else runs
 console.log('Jest starting!');
});
// close the server after each test
afterAll(() => {
 server.close();
 console.log('server closed!');
});
describe('basic route tests', () => {
 test('get home route GET /', async () => {
 const response = await request(server).get('/');
 expect(response.status).toEqual(200);
 expect(response.text).toContain('Hello World!');
 });
});

另外，如果我將const server = require("../index.ts")語句更改為導入，那么我會收到錯誤消息： Property 'close' does not exist on type 'typeof import("/Users/path/to/file/")

所以這也可能是問題的一部分。

Answer 1

在測試文件中更改導入

import {server} from "../index"