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Alexandru Paduraru 4dda651245 Initial commit
2025-10-22 14:59:57 +03:00

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TypeScript

import { test, expect } from '@playwright/test';
import { apiRegister, uiLogin, uniqueEmail, trackRefresh } from './helpers';
test('concurrent 401s trigger exactly one refresh (singleton)', async ({ page, request }) => {
const email = uniqueEmail('single');
const password = 'Password!123';
await apiRegister(request, email, password);
await uiLogin(page, email, password);
await expect(page).toHaveURL(/dashboard/);
const refreshHits = trackRefresh(page);
// Trigger two protected fetches in the app at once.
// E.g., navigate to a page that loads two protected endpoints on mount.
// If you don’t have such a page, add a tiny dev route that does it for tests,
// or invoke window.fetch twice via evaluate:
await page.evaluate(() => {
// these URLs should be protected in your app (adjust to real endpoints)
fetch(`${process.env.NEXT_PUBLIC_API_URL!.replace(/\/+$/, '')}/protected/a`, { credentials: 'include' });
fetch(`${process.env.NEXT_PUBLIC_API_URL!.replace(/\/+$/, '')}/protected/b`, { credentials: 'include' });
});
// Allow a moment for network to settle
await page.waitForTimeout(1000);
// The wrapper ensures only one refresh went out even if both 401'd
expect(refreshHits.length).toBeLessThanOrEqual(1);
});