Playwright For Full-Stack Testing: Auth, Fixtures, Mocking, Snapshots, And Parallel Runs Without The Flake

Here's a Playwright test that looks completely reasonable and silently lies to you:

tests/dashboard.spec.ts

import { test, expect } from "@playwright/test";

test.use({ storageState: "playwright/.auth/user.json" });

test("dashboard shows the user's name", async ({ page }) => {