thecoded.prof
CMU Coding Bootcamp
1const { protect } = require("../middleware/authMiddleware");
2const jwt = require("jsonwebtoken");
3
4jest.mock("jsonwebtoken");
5
6describe("Auth Middleware", () => {
7 it("should call next() with a valid token", () => {
8 jwt.verify.mockReturnValueOnce({ id: "user123" });
9
10 const req = {
11 headers: { authorization: "Bearer valid-token" },
12 };
13 const res = {};
14 const next = jest.fn();
15
16 protect(req, res, next);
17
18 expect(next).toHaveBeenCalled();
19 expect(req.user).toEqual({ id: "user123" });
20 });
21
22 it("should return 401 for a missing token", () => {
23 const req = {
24 headers: {},
25 };
26 const res = {
27 status: jest.fn().mockReturnThis(),
28 json: jest.fn(),
29 };
30 const next = jest.fn();
31
32 protect(req, res, next);
33
34 expect(res.status).toHaveBeenCalledWith(401);
35 expect(res.json).toHaveBeenCalledWith({
36 message: "Not authorized, no token",
37 });
38 expect(next).not.toHaveBeenCalled();
39 });
40
41 it("should return 401 for an invalid token", () => {
42 jwt.verify.mockImplementationOnce(() => {
43 throw new Error("Invalid token");
44 });
45
46 const req = {
47 headers: { authorization: "Bearer invalid-token" },
48 };
49 const res = {
50 status: jest.fn().mockReturnThis(),
51 json: jest.fn(),
52 };
53 const next = jest.fn();
54
55 protect(req, res, next);
56
57 expect(res.status).toHaveBeenCalledWith(401);
58 expect(res.json).toHaveBeenCalledWith({
59 message: "Not authorized, invalid token",
60 });
61 expect(next).not.toHaveBeenCalled();
62 });
63});