Book Image

UI Testing with Puppeteer

By : Dario Kondratiuk
Book Image

UI Testing with Puppeteer

By: Dario Kondratiuk

Overview of this book

Puppeteer is an open source web automation library created by Google to perform tasks such as end-to-end testing, performance monitoring, and task automation with ease. Using real-world use cases, this book will take you on a pragmatic journey, helping you to learn Puppeteer and implement best practices to take your automation code to the next level! Starting with an introduction to headless browsers, this book will take you through the foundations of browser automation, showing you how far you can get using Puppeteer to automate Google Chrome and Mozilla Firefox. You’ll then learn the basics of end-to-end testing and understand how to create reliable tests. You’ll also get to grips with finding elements using CSS selectors and XPath expressions. As you progress through the chapters, the focus shifts to more advanced browser automation topics such as executing JavaScript code inside the browser. You’ll learn various use cases of Puppeteer, such as mobile devices or network speed testing, gauging your site’s performance, and using Puppeteer as a web scraping tool. By the end of this UI testing book, you’ll have learned how to make the most of Puppeteer’s API and be able to apply it in your real-world projects.
Table of Contents (12 chapters)

Chapter 7: Generating Content with Puppeteer

When I launched Puppeteer-Sharp (https://github.com/hardkoded/puppeteer-sharp) back in 2019, I was surprised to see that the two main use-case scenarios were content generation and web scraping.

Things are not too different in the Node.js world. Lots of developers use Puppeteer in Node.js for content generation and web scraping as well.

If you are a QA analyst, you will learn how to use screenshots to create regression tests. But, please, don't stop there; the other sections will give you a complete picture of everything you can do with Puppeteer on this topic. If you are not much into web development, share this chapter with your development team. No, don't share it – ask them to buy the book. That will be better.

Web developers will love this chapter. We will see how to use Puppeteer as a content generator tool for your website.

We will cover the following topics in this chapter:

  • Taking screenshots...