React-Redux is the official Redux UI bindings library for React. Move inside the project folder and install react-test-renderer: cd testing-react-tutorial && npm i react-test-renderer --save-dev. Presentational components are just about rendering the incoming props and their unit tests are more or less checking if the right callback is called if something is clicked/filled in. If things change, refactoring views is almost fun! and Cont. In order to learn and test React, you should set up a React Environment on your computer. Inside the App.js component, you can remove the content of the header element and change the header to a div with className="app-header". Our TaskList component as currently written is “presentational” (see this blog post) in that it doesn’t talk to anything external to its own implementation. (The options are same the moment.js using). One will represent the overall product list and the other an individual product. Thank you!