In this article, we’ll take a look at using Jest — a testing framework maintained by Facebook — to test our React components. We’ll look at how we can use Jest first on plain JavaScript functions, before looking at some of the features it provides out of the box specifically aimed at making testing React apps easier.

It’s worth noting that Jest isn’t aimed specifically at React: you can use it to test any JavaScript applications. However, a couple of the features it provides come in really handy for testing user interfaces, which is why it’s a great fit with React.

#jest #react #testing #javascript #reactjs