Doesnt work for React 16+

[binarybaba]

complete-intro-to-react/package.json

Line 16 in 03296d5

"jest-serializer-enzyme"

If you are going to use React 16,
Replace jest-serializer-enzyme to enzyme-to-json/serializer and include enzyme-to-json as a dev dependency.

For enzyme to work with React 16, you need to yarn add enzyme-adapter-react-16 -D

And then, inside your tests,

import { shallow, configure } from 'enzyme';
import Adapter from 'enzyme-adapter-react-16';
beforeAll(() => {
    configure({
        adapter: new Adapter()
    });
});
// your tests here..