May 2019
Intermediate to advanced
316 pages
7h 13m
English
Content preview from Hands-On Full Stack Development with Spring Boot 2 and React - Second Edition
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Chapter 13
- Jest is a test library for JavaScript developed by Facebook.
- Create a test file using the .test.js extension. Implement your test cases inside the file. You can run the tests using the npm test command.
- For snapshot testing, you have to install the react-test-render package and import renderer to your test file. Implement your snapshot test cases inside the file and run the tests using the npm test command.
- Enzyme is a JavaScript library for testing the React component's output.
- Using the following npm command, npm install enzyme enzyme-adapter-react-16 --save-dev, we can install Enzyme.
- You have to import the Enzyme and Adapter components to your test file. Then, you can create your test cases to render a component. With Enzyme, ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.