How to access device configuration in Playwright
AI Summary
This video presents a Playwright tip demonstrating how to use headless browsers for testing responsive web design across different viewport sizes. The presenter shows a Playwright script that launches a Chromium browser, navigates to a website, and takes a screenshot. Initially, the default desktop viewport is used. The video then explains how to customize the viewport dimensions and device scale factor manually to simulate an iPhone SE’s screen size, producing a corresponding smaller screenshot. Furthermore, the video showcases Playwright’s built-in device descriptors that provide predefined configurations like viewport size and user agent for devices such as the iPhone SE. Using these device configurations simplifies the script and improves the developer experience. The video concludes by highlighting this efficient method for ensuring responsive design works well across devices.