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

If anyone comes across this while trying to fix this after setting up Testing React Components with Jest in GatsbyJs (https://www.gatsbyjs.org/docs/testing-react-components/)

In the setup-test-env.js you make, edit it to look like this:

import "@testing-library/jest-dom/extend-expect"
import { configure } from 'enzyme'
import Adapter from 'enzyme-adapter-react-16'

configure({ adapter: new Adapter() })