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UI Testing with Puppeteer

You're reading from   UI Testing with Puppeteer Implement end-to-end testing and browser automation using JavaScript and Node.js

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Product type Paperback
Published in Mar 2021
Publisher Packt
ISBN-13 9781800206786
Length 316 pages
Edition 1st Edition
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Author (1):
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Dario Kondratiuk Dario Kondratiuk
Author Profile Icon Dario Kondratiuk
Dario Kondratiuk
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Table of Contents (12) Chapters Close

Preface 1. Chapter 1: Getting started with Puppeteer 2. Chapter 2: Automated Testing and Test runners FREE CHAPTER 3. Chapter 3: Navigating through a website 4. Chapter 4: Interacting with a page 5. Chapter 5: Waiting for elements and network calls 6. Chapter 6: Executing and Injecting JavaScript 7. Chapter 7: Generating Content with Puppeteer 8. Chapter 8: Environments emulation 9. Chapter 9: Scraping tools 10. Chapter 10: Evaluating and Improving the Performance of a Website 11. Other Books You May Enjoy

Taking screenshots

Taking screenshots is the first feature I mention when I give talks about Puppeteer or Puppeteer-Sharp. Don't ask me why, maybe because I find it fun to use, or perhaps because it's hard to explain why we would need to take screenshots.

As a web developer, there are many things you can accomplish using screenshots. The first popular use-case you'll find is to improve your Open Graph information.

According to their website (https://ogp.me/), "The Open Graph protocol enables any web page to become a rich object in a social graph. For instance, this is used on Facebook to allow any web page to have the same functionality as any other object on Facebook."

Open Graph is what will make social media posts (on Twitter or Facebook) look pretty when people share the URL of your site. We are not going to talk about product positioning on social media in this book. But what you need to know is that if you are working on a public site with users...

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