By default, this library runs the browser in headless mode, but it can be also configured to run Chrome or Chromium fully (non-headless). It can work with Chrome, Chromium, or Firefox. Puppeteer provides a high-level API to control the browser. Learn how to set up and run automated tests with code. Puppeteer is a Node library that is used for browser automation. The only thing left is creating a CI pipeline, for which well use GitHub actions. You can now write a full test suite using jest and puppeteer. Once the server starts the tests will run. In this post we will go over how to: Use Puppeteer’s API to emulate. You should be pointing to the root of the project: puppeteer-demo Step 4: Enter Command to create package. Jest is a testing framework maintained by Facebook that works great with Puppeteer, a library for controlling Headless Chrome. Jest is a testing framework maintained by Facebook that works great with Puppeteer, a library for controlling Headless Chrome. 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. Use the download method in your next Puppeteer project with LambdaTest Automation Testing Advisor. Now jest-puppeteer will run npm run serve, with a timeout of 180 seconds (3 minutes), and listen on port 9000 to see when it will be up. Setting up Puppeteer and Jest Automation Tool Step 1: Create an empty directory let’s name it puppeteer-demo Step 2: Open the newly created empty directory (puppeteer-demo) in Visual Studio Code.
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