Can I use Playwright to test mobile views of my website?

Yes, you can use Playwright to test mobile views of your website. Playwright is a Node.js library to automate Chromium, Firefox and WebKit with a single API. It enables cross-browser web automation that is ever-green, capable, reliable and fast.

Playwright comes with "emulation" support that allows you to simulate various devices including mobile devices. You can use this feature to test how your website behaves on mobile devices.

Here is a basic example in JavaScript:

const { chromium, devices } = require('playwright');
const iPhone = devices['iPhone 11 Pro'];

(async () => {
  const browser = await chromium.launch();
  const context = await browser.newContext({
    ...iPhone,
  });
  const page = await context.newPage();
  await page.goto('http://yourwebsite.com');
  await page.screenshot({ path: `example.png` });
  await browser.close();
})();

In this example, we first import the necessary modules from Playwright. We then define the type of device we want to emulate (in this case, an iPhone 11 Pro). After that, we launch a new browser instance, create a new context with the device emulation, and navigate to the website. Lastly, we take a screenshot of the page and close the browser.

You can replace 'iPhone 11 Pro' with any device name from Playwright's device catalog. The full list of device names can be found in the Playwright API source code.

Please note that this is a basic example. Depending on your website's complexity and the extent of your tests, you might need to expand on this to suit your needs.