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)

Emulating localization

I love this topic. Maybe because English is not my mother tongue, so I have seen and felt the pain when a site fails to honor other cultures.

There are many debates about what localization is, what internationalization is, and the difference between them. While I bet there will be debate over whether I should treat both as a whole or not, we will treat both as a whole.

When we talk about localization, we're saying that a website should honor its audience:

  • It should honor their language.
  • It should honor their culture, such as how they read numbers, sort information, and read the content.
  • It should honor their beliefs. For example, Green/Good Red/Bad might not apply in every culture.

Localization is a feature.

Ideally, every site on the web should consider localization. But localization can be quite a costly feature to implement. There is a high chance that your company is not Google or Amazon and you cannot afford to localize...