Playwright provides a way to reuse the signed-in state in the tests. That way you can log in only once and then skip the log in step for all of the tests.
Web apps use cookie-based or token-based authentication, where authenticated state is stored as cookies or in local storage. Playwright provides browserContext.storageState([options]) method that can be used to retrieve storage state from authenticated contexts and then create new contexts with pre-populated state.
Cookies and local storage state can be used across different browsers. They depend on your application's authentication model: some apps might require both cookies and local storage.
Code Generator video:
https://youtu.be/CZb-jjA3P8Y
Code to use:
await page.goto("https://demoblaze.com/");
await page.locator("#login2").click();
await page.locator("#loginusername").fill("test");
await page.locator("#loginpassword").fill("test");
await page.locator('[onclick="logIn()"]').click();
await expect(page.locator("#logout2")).toBeVisible();
