Enzyme expects an adapter to be configured

Question

I created a new React application by create-react-app and I wanted to write a unit test to a component named \"MessageBox\" that I created in the application. This is the un

Answer 1

Create a file named setupTests.js in the root of your project. jest will automatically look for this file before running any test suits. Add the following content to the file.

import Enzyme from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';

Enzyme.configure({adapter:new Adapter()})

Note: the filename should be exactly the same.no need to import this setupTests.js file into your test files.it will work automatically