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Version: 1.22

Test Generator

Playwright comes with the ability to generate tests out of the box.

Generate tests​

npx playwright codegen wikipedia.org

Run codegen and perform actions in the browser. Playwright will generate the code for the user interactions. codegen will attempt to generate resilient text-based selectors.

Preserve authenticated state​

Run codegen with --save-storage to save cookies and localStorage at the end of the session. This is useful to separately record authentication step and reuse it later in the tests.

npx playwright codegen --save-storage=auth.json
# Perform authentication and exit.
# auth.json will contain the storage state.

Run with --load-storage to consume previously loaded storage. This way, all cookies and localStorage will be restored, bringing most web apps to the authenticated state.

npx playwright open --load-storage=auth.json my.web.app
npx playwright codegen --load-storage=auth.json my.web.app
# Perform actions in authenticated state.

Record using custom setup​

If you would like to use codegen in some non-standard setup (for example, use browserContext.route(url, handler[, options])), it is possible to call page.pause() that will open a separate window with codegen controls.

const { chromium } = require('playwright');

(async () => {
  // Make sure to run headed.
  const browser = await chromium.launch({ headless: false });

  // Setup context however you like.
  const context = await browser.newContext({ /* pass any options */ });
  await context.route('**/*', route => route.continue());

  // Pause the page, and start recording manually.
  const page = await context.newPage();
  await page.pause();
})();

Emulate devices​

You can record scripts and tests while emulating a device.

# Emulate iPhone 11.
npx playwright codegen --device="iPhone 11" wikipedia.org

Emulate color scheme and viewport size​

You can also record scripts and tests while emulating various browser properties.

# Emulate screen size and color scheme.
npx playwright codegen --viewport-size=800,600 --color-scheme=dark twitter.com

Emulate geolocation, language and timezone​

# Emulate timezone, language & location
# Once page opens, click the "my location" button to see geolocation in action
npx playwright codegen --timezone="Europe/Rome" --geolocation="41.890221,12.492348" --lang="it-IT" maps.google.com