Chapter 13

1. Jest is a test library for JavaScript developed by Facebook.
2. Create a test file using the .test.js extension. Implement your test cases inside the file. You can run the tests using the npm test command.
3. For snapshot testing, you have to install the react-test-render package and import renderer to your test file. Implement your snapshot test cases inside the file and run the tests using the npm test command.
4. Enzyme is a JavaScript library for testing the React component's output.
5. Using the following npm command, npm install enzyme enzyme-adapter-react-16 --save-dev, we can install Enzyme.
6. You have to import the Enzyme and Adapter components to your test file. Then, you can create your test cases to render a component. With Enzyme, you can use Jest for assertions. Enzyme provides the simulate method that can be used to test events.

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