Merge pull request #401 from ut-code/test/userutil

Create UserUtil.test.ts

Author: bvv-1

backend/src/utils/UserUtil.test.ts

@@ -0,0 +1,71 @@
+import { Request } from "express"
+import { extractUserFromRequest } from "./UserUtil"
+import { supabase } from "../supabaseClient"
+import { User } from "@supabase/supabase-js"
+
+jest.mock("../supabaseClient", () => ({
+  supabase: {
+    auth: {
+      getUser: jest.fn(),
+    },
+  },
+}))
+
+describe("extractUserFromRequest", () => {
+  let req: Partial<Request>
+
+  beforeEach(() => {
+    req = {
+      headers: {},
+    }
+  })
+
+  beforeAll(() => {
+    // Suppress console.error
+    jest.spyOn(console, "error").mockImplementation(() => {})
+  })
+
+  it("should return null if no authorization header is present", async () => {
+    const user = await extractUserFromRequest(req as Request)
+    expect(user).toBeNull()
+  })
+
+  it("should return null if the authorization header is malformed", async () => {
+    req.headers = req.headers || {}
+    req.headers["authorization"] = "InvalidToken"
+    const user = await extractUserFromRequest(req as Request)
+    expect(user).toBeNull()
+  })
+
+  it("should return null if Supabase returns no user", async () => {
+    req.headers = req.headers || {}
+    req.headers["authorization"] = "Bearer validToken"
+    ;(supabase.auth.getUser as jest.Mock).mockResolvedValue({ data: null })
+
+    const user = await extractUserFromRequest(req as Request)
+    expect(user).toBeNull()
+  })
+
+  it("should return the user if the token is valid and Supabase returns a user", async () => {
+    const mockUser: User = { id: "123", email: "[email protected]" } as User
+    req.headers = req.headers || {}
+    req.headers["authorization"] = "Bearer validToken"
+    ;(supabase.auth.getUser as jest.Mock).mockResolvedValue({ data: { user: mockUser } })
+
+    const user = await extractUserFromRequest(req as Request)
+    expect(user).toEqual(mockUser)
+  })
+
+  it("should handle errors and return null", async () => {
+    req.headers = req.headers || {}
+    req.headers["authorization"] = "Bearer validToken"
+    ;(supabase.auth.getUser as jest.Mock).mockRejectedValue(new Error("Some error"))
+
+    const user = await extractUserFromRequest(req as Request)
+    expect(user).toBeNull()
+  })
+
+  afterAll(() => {
+    jest.restoreAllMocks()
+  })
+})