Mastering React Test-Driven Development: Build simple and maintainable web apps with React, Redux, and GraphQL, 2nd Edition
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Author
Publication
Packt Publishing
Test-driven development (TDD) is a programming workflow that helps you build your apps by specifying behavior as automated tests. The TDD workflow future-proofs apps so that they can be modified without fear of breaking existing functionality. Another benefit of TDD is that it helps software development teams communicate their intentions more clearly, by way of test specifications.
This book teaches you how to apply TDD when building React apps. You'll create a sample app using the same React libraries and tools that professional React developers use, such as Jest, React Router, Redux, Relay (GraphQL), Cucumber, and Puppeteer. The TDD workflow is supported by various testing techniques and patterns, which are useful even if you're not following the TDD process. This book covers these techniques by walking you through the creation of a component test framework. You'll learn automated testing theory which will help you work with any of the test libraries that are in standard usage today, such as React Testing Library. This second edition has been revised with a stronger focus on concise code examples and has been fully updated for React 18.
By the end of this TDD book, you'll be able to use React, Redux, and GraphQL to develop robust web apps.
Review
"Rigorously practicing TDD transformed my career. Not because it's the One True Way to program, but because it forces you to ceaselessly ask "how would we test that?" TDD is incredibly challenging at first, but patterns gradually emerge that result in easy-to-test code. And code that's easy to test, is easy to write. And use. And maintain.
Wherever you are in your journey, I hope this book brings you closer toward a similar destination."
--Justin Searls VP of Engineering at Test Double
About the Author
Daniel Irvine is a UK-based software consultant. He helps businesses simplify their existing codebases and assists dev teams in improving the quality of their software using eXtreme programming (XP) practices. He has been coaching developers for many years and co-founded the Queer Code London meetup.
- Build test-driven applications using React 18 and Jest
- Understand techniques and patterns for writing great automated tests
- Use test doubles and mocks effectively
- Test-drive browser APIs, including the Fetch API and the WebSocket API
- Integrate with libraries such as React Router, Redux, and Relay (GraphQL)
- Use Cucumber.js and Puppeteer to build Behaviour- Driven Development (BDD) style tests for your applications
- Build and test async Redux code using redux-saga and expect-redux
This book is for frontend developers who are looking to improve their testing practices and increase the quality and maintainability of their applications. To make the most of this book, you'll need knowledge of the JavaScript programming language.
- First Steps with Test-Driven Development
- Rendering Lists and Detail Views
- Refactoring the Test Suite
- Test-Driving Data Input
- Adding Complex Form Interactions
- Exploring Test Doubles
- Testing useEffect and Mocking Components
- Building an Application Component
- Form Validation
- Filtering and Searching Data
- Test-Driving React Router
- Test-Driving Redux
- Test-Driving GraphQL
- Building a Logo Interpreter
- Adding Animation
- Working with WebSockets
- Writing Your First Cucumber Test
- Adding Features Guided by Cucumber Tests
- Understanding TDD in the Wider Testing Landscape
