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Version: 1.16

Test Generator

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

Generate tests#

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.

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.

playwright open --load-storage=auth.json my.web.appplaywright 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.RouteAsync(url, handler, options)), it is possible to call Page.PauseAsync() that will open a separate window with codegen controls.

using Microsoft.Playwright;using System.Threading.Tasks;
class Program{    public static async Task Main()    {        using var playwright = await Playwright.CreateAsync();        var chromium = playwright.Chromium;        // Make sure to run headed.        var browser = await chromium.LaunchAsync(new BrowserTypeLaunchOptions { Headless = false });
        // Setup context however you like.        var context = await browser.NewContextAsync(); // Pass any options        await context.RouteAsync('**/*', route => route.ContinueAsync());
        // Pause the page, and start recording manually.        var page = await context.NewPageAsync();        await page.PauseAsync();    }}

Emulate devices#

You can record scripts and tests while emulating a device.

# Emulate iPhone 11.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.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 actionplaywright codegen --timezone="Europe/Rome" --geolocation="41.890221,12.492348" --lang="it-IT" maps.google.com