diff --git a/examples/demo-app/tests/auth.test.ts b/examples/demo-app/tests/auth.test.ts
new file mode 100644
index 0000000..4c26268
--- /dev/null
+++ b/examples/demo-app/tests/auth.test.ts
@@ -0,0 +1,9 @@
+import { describe, expect, it } from 'vitest';
+import { getUser } from '../src/lib/auth';
+
+describe('Auth Service', () => {
+  it('should retrieve user', async () => {
+    const user = await getUser('1');
+    expect(user).toBeDefined();
+  });
+});