我正在使用 NodeJS 和 KOA 创建一个 API。对于测试,我使用 chai (chai-http) 和 mocha。当我const { username } = ctx.state.user
在控制器中使用来获取发送请求的用户的用户名时,就会出现问题。当使用我的应用程序(使用 Flutter)或使用 Postman 访问它们时,它可以工作,但是使用 mocha 运行测试时,我得到了错误TypeError: Cannot destructure property 'username' of 'undefined' or 'null'
。调试代码时,我发现它ctx
有一个键,state
但该键的值是空的。我尝试了这些方法.set(...)
,.send(...)
但它们只修改了 and 内部ctx.request.header
的值ctx.request.body
。
所以我的问题是:是否可以为ctx.state
with chai 设置一个值,如果可以,如何设置?我想放入类似的东西{user: {username: 'chai'}}
。
以下是2个主要部分,要测试的控制器部分和测试方法:
async function bar(ctx, next) {
const { username } = ctx.state.user;
const { value } = ctx.request.body;
// do something with value and username
ctx.status = 200;
}
it("With correct gameKey: should return the rating of the game", done => {
chai
.request('http://localhost:3000')
.post('/foo/bar')
.set('content-type', 'application/json')
.send({value: 3});
.end((err, res) => {
// do some tests
done();
});
});
这是来自服务器索引和测试文件的完整代码:
const Koa = require('koa');
const Jwt = require('koa-jwt');
const Router = require('koa-router');
const Cors = require('@koa/cors');
const BodyParser = require('koa-bodyparser');
const Helmet = require('koa-helmet');
const app = new Koa();
const router = new Router();
router.post('/foo/bar', bar);
async function bar(ctx, next) {
const { username } = ctx.state.user;
const { value } = ctx.request.body;
// do something with value and username
ctx.status = 200;
}
app.use(Helmet());
app.use(Cors());
app.use(BodyParser({
enableTypes: ['json'],
strict: true,
onerror(err, ctx) {
ctx.throw('Request body could not be parsed', 422);
},
}));
app.use(Jwt({ secret: process.env.SECRET }).unless({
path: [
// Whitelist routes that don't require authentication
/^\/auth/,
],
}));
app.use(router.routes());
app.use(router.allowedMethods());
app.listen(3000, () => console.log(`API server started on localhost:3000`));
const chai = require("chai");
const chaiHttp = require("chai-http");
chai.use(chaiHttp);
const expect = require('chai').expect;
const userCredentials = {
username: 'chai',
password: 'chai'
}
describe("Route: games/", () => {
before(() => {
chai
.request('http://localhost:3000')
.post('/auth')
.set('content-type', 'application/json')
.send(userCredentials)
.end((err, res) => {
expect(res.status).to.be.eql(200);
});
});
describe("Sub-route: GET /", () => {
describe("Sub-route: PUT /:gameKey/rating", () => {
it("With correct gameKey: should return the rating of the game", done => {
chai
.request('http://localhost:3000')
.post('/foo/bar')
.set('content-type', 'application/json')
.send({value: 3});
.end((err, res) => {
expect(res.status).to.be.eql(200);
done();
});
});
});
});
});