Mocha 测试 express 异步中间件不工作

Question

我正在尝试使用 Mocha 的 done 函数测试异步中间件身份验证函数。但是，似乎测试在异步调用中调用 done 函数之前完成。测试不是应该等到 done 回调被调用吗？

中间件：

const AuthMiddleware = (req: Request, res: Response, next: NextFunction) => {
    const token = getToken(req)

    if (token === undefined) {
        res.status(401)
        next()
    }

    jwt.verify(token, getSigningKey, (err, decodedToken) => {
        if (err) {
            res.status(401)
            next()
        }
    })
}

我的测试：

describe("AuthMiddleware", () => {
    it("Should return 401 if token is expired", (done) => {
        const options = { headers: { authorization: "Bearer " + expiredToken } }
        const req = mockReq(options) as Request
        const res = mockRes() as Response

        AuthMiddleware(req, res, done)
        expect(res.status).to.have.been.calledWith(401)
    }).timeout(10000)
})

Answer 1

您正在将 done() 视为 next()。 Done 用于结束测试，而 next 用于中间件

describe("AuthMiddleware", () => {
it("Should return 401 if token is expired",async (done) => {
    const options = { headers: { authorization: "Bearer " + expiredToken } }
    const req = mockReq(options) as Request
    const res = mockRes() as Response

    await AuthMiddleware(req, res, done)
    expect(res.status).to.have.been.calledWith(401)
}).timeout(10000)

})

Mocha 测试 express 异步中间件不工作

Mocha test express async middleware done not working

mocha.js

node.js

express