Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
React Design Patterns and Best Practices

You're reading from   React Design Patterns and Best Practices Build easy to scale modular applications using the most powerful components and design patterns

Arrow left icon
Product type Paperback
Published in Jan 2017
Publisher Packt
ISBN-13 9781786464538
Length 318 pages
Edition 1st Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Michele Bertoli Michele Bertoli
Author Profile Icon Michele Bertoli
Michele Bertoli
Arrow right icon
View More author details
Toc

Table of Contents (13) Chapters Close

Preface 1. Everything You Should Know About React FREE CHAPTER 2. Clean Up Your Code 3. Create Truly Reusable Components 4. Compose All the Things 5. Proper Data Fetching 6. Write Code for the Browser 7. Make Your Components Look Beautiful 8. Server-Side Rendering for Fun and Profit 9. Improve the Performance of Your Applications 10. About Testing and Debugging 11. Anti-Patterns to Be Avoided 12. Next Steps

JavaScript testing utilities for React


At this point, it should be clear how to test basic components with Jest and Mocha and what the pros and cons are of both.

You have also learned what the TestUtils are and the difference between Shallow rendering and full DOM Rendering.

You may have noticed that the TestUtils, even if they provide a useful tool to help testing components, are verbose and sometimes it is not easy to find the right approach to get the reference to the elements and their properties.

That is the reason why the developers at AirBnb decided to create Enzyme, a tool built on top of the TestUtils that makes it easy to manipulate the rendered components.

The API is nicer, similar to jQuery, and it provides many useful utilities to interact with components, their states, and their properties.

Let's see what it means to convert our Jest tests to use Enzyme instead of the TestUtils.

So, please go back to the Jest project we previously created and install enzyme:

npm install --save-dev...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at ₹800/month. Cancel anytime