1test('app refreshes token on 401', async ({ page }) => {
2  let callCount = 0;
3
4  await page.route('**/api/data', async (route) => {
5    callCount++;
6    if (callCount === 1) {
7      // First call returns Unauthorized
8      await route.fulfill({ status: 401, body: JSON.stringify({ error: 'Unauthorized' }) });
9    } else {
10      // Second call succeeds after the app has refreshed the token
11      await route.fulfill({ status: 200, body: JSON.stringify({ items: ['a', 'b'] }) });
12    }
13  });
14
15  await page.goto('/dashboard');
16
17  await expect(page.getByText('a')).toBeVisible();
18  expect(callCount).toBe(2); // confirm the retry happened
19});