add tests

apps/website/tests/setup/vitest.setup.ts

@@ -0,0 +1,54 @@
+/**
+ * Vitest Setup for Website Components
+ * 
+ * This file sets up the testing environment for website component tests.
+ * It mocks external dependencies and provides custom matchers.
+ */
+
+import '@testing-library/jest-dom/vitest';
+import { vi } from 'vitest';
+
+// Mock Next.js navigation
+vi.mock('next/navigation', () => ({
+  useRouter: () => ({
+    push: vi.fn(),
+    replace: vi.fn(),
+    refresh: vi.fn(),
+    back: vi.fn(),
+    forward: vi.fn(),
+    prefetch: vi.fn(),
+  }),
+  usePathname: () => vi.fn(),
+  useSearchParams: () => vi.fn(),
+}));
+
+// Mock Next.js headers
+vi.mock('next/headers', () => ({
+  headers: () => ({
+    get: vi.fn(),
+    set: vi.fn(),
+  }),
+}));
+
+// Mock Next.js cookies
+vi.mock('next/cookies', () => ({
+  cookies: () => ({
+    get: vi.fn(),
+    set: vi.fn(),
+    delete: vi.fn(),
+  }),
+}));
+
+// Mock React hooks
+vi.mock('react', async () => {
+  const actual = await vi.importActual('react');
+  return {
+    ...actual,
+    useTransition: () => [false, vi.fn()],
+    useOptimistic: (initialState: any) => [initialState, vi.fn()],
+  };
+});
+
+// Set environment variables
+process.env.NEXT_PUBLIC_API_BASE_URL = 'http://localhost:3001';
+process.env.API_BASE_URL = 'http://localhost:3001';