Finished testing implementation

FastNotes/__tests__/auth-guard.test.tsx

@@ -0,0 +1,54 @@
+import { renderRouter, screen, waitFor } from "expo-router/testing-library"
+import React from "react"
+
+jest.mock("@/providers/auth-provider", () => {
+    const React = require("react")
+    const { AuthContext } = require("@/hooks/use-auth-context")
+
+    return {
+        __esModule: true,
+        default: ({ children }: React.PropsWithChildren) =>
+            React.createElement(
+                AuthContext.Provider,
+                {
+                    value: {
+                        claims: null,
+                        profile: null,
+                        isLoading: false,
+                        isLoggedIn: false,
+                    },
+                },
+                children
+            ),
+    }
+})
+
+jest.mock("@/libs/supabase", () => ({
+    supabase: {
+        auth: {
+            signInWithPassword: jest.fn(),
+            signUp: jest.fn(),
+            signOut: jest.fn(),
+            getUser: jest.fn(),
+        },
+        from: jest.fn(),
+    },
+    supabaseUrl: "https://example.supabase.co",
+    supabaseAnonKey: "test-anon-key",
+}))
+
+describe("Auth guard", () => {
+    it("redirects logged-out users to the login screen instead of protected content", async () => {
+        const routerScreen = renderRouter("./app", {
+            initialUrl: "/",
+        })
+
+        await waitFor(() => {
+            expect(routerScreen.getPathname()).toBe("/login")
+        })
+
+        expect(screen.getByText("Login")).toBeTruthy()
+        expect(screen.getByText("Log in")).toBeTruthy()
+        expect(screen.queryByText("FastNotes")).toBeNull()
+    })
+})