Puppeteer has event-driven architecture, which removes a lot of potential flakiness. At the end of the day, it’s better to have a few tests running chromium-only, than no tests at all. Also you need to use -no-sandbox in jest-puppeteer, the full setup can be. Puppeteer requires zero setup and comes bundled with the Chromium version it works best with, making it very easy to start with. When you install Puppeteer, it automatically downloads a recent version of Chromium (170MB macOS, 282MB Linux, 280MB Windows) that is guaranteed to work. Go ahead and clone the GitHub branch or follow the instructions below. For instance, there is a package called jest-puppeteer, which helps us integrate. Let’s set up Jest Puppeteer quickly to see how it differs from the method we’ve used for the previous tests. To download files with Puppteer we can either the browser's fetch feature - which will download the file into a javascript variable - or find and click the download button which will download the file to the browser's save directory: // start puppeteerĬonst browser = await puppeteer.launch() Īwait page._nd('Page. Puppeteers page and browser classes will automatically be exposed. Installing Puppeteer, Jest, and Jest-Puppeteer Installing all three packages is as simple as running the npm install command: npm install puppeteer jest jest-puppeteer -save-dev If you do not already have a package.json file, create it by running this command: npm init Now that we have our libraries installed, let's configure them both. Gitpod is a Github-integrated and 100 hours per month free use online IDE. Access the full title and Packt library for free now with a free trial.
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