Chapter 1, Exploring React Testing Library, will help you understand the guiding principles of the DOM Testing Library to write tests from the perspective of the user. You will learn the disadvantages of implementing detail-focused testing. Finally, you will learn the advantages of using jest-dom to enhance our tests using RTL.

Chapter 2, Working with React Testing Library, will teach you how to add RTL to React projects. You will learn how to properly structure tests using the API. You will look at presentational components and write some initial tests. Finally, we will learn how to use the debug method to assist us in the process of writing tests.

Chapter 3, Testing Complex Components with React Testing Library, will help you understand how to test more complex React components. You will learn how to simulate user interactions with Fire Event and the user event module. You will learn how to use TDD to drive the process of writing tests. Finally, you will unit test components that interact with APIs.

Chapter 4, Integration Testing and Third-Party Libraries in Your Application, teaches you how to test components in various React applications. You will learn how to test integrated components and how to test components using the Context API. Finally, you will test components using popular third-party libraries such as GraphQL and Redux.

Chapter 5, Refactoring Legacy Applications with React Testing Library, will teach you strategies for dealing with breaking changes while refactoring legacy React applications. You will learn how to update production packages while using RTL tests to guide you in resolving breaking changes. You will also learn how to convert tests written in Enzyme or ReactTestUtils to RTL.

Chapter 6, Implementing Additional Tools and Plugins for Testing, will help you learn additional tools to enhance your ability to test React applications using RTL.

Chapter 7, End-To-End UI Testing with Cypress, will teach you how to write end-to-end UI tests using the popular Cypress library. You will learn design patterns to structure your tests. You will learn how to test APIs with Cypress. Finally, you will learn how to integrate Cucumber and React Developer Tools into your test suite.