O'Reilly logo

React 16 Tooling by Adam Boduch

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Writing Jest tests

Now that you know how to run Jest, let's write some unit tests. We'll cover the basics as well as the more advanced features of Jest available for testing React apps. We'll start organizing your tests into suites and the basic assertions available in Jest. Then, you'll create your first mock module and work with asynchronous code. Lastly, we'll use Jest's snapshotting mechanism to help test React component output.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required