Course Curriculum

14 Chapters · 14 Lessons

  1. 1

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  2. 2

    Chapter 1: Introduction to Testing

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      Introduction to Testing

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    Chapter 2: Jest Fundamentals

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      Jest Fundamentals

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    Chapter 3: Introduction to React and React Testing Library

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      Introduction to React and React Testing Library

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    Chapter 4: Advanced Testing Techniques

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      Advanced Testing Techniques

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    Chapter 5: Testing React Hooks and Asynchronous Operations

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      Testing React Hooks and Asynchronous Operations

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    Chapter 6: Redux Thunk and Context

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      Redux Thunk and Context

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    Chapter 7: Jest Best Practices and Capabilities

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      Jest Best Practices and Capabilities

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    Chapter 8: Testing Real-World React Applications

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      Testing Real-World React Applications

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    Chapter 9: Jest Coverage and CI/CD Integration

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      Jest Coverage and CI/CD Integration

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    Chapter 10: Practical Exercises and Challenges

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      Practical Exercises and Challenges

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    Chapter 11: Future-proof Testing with RTL

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      Future-proof Testing with RTL

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    Chapter 12: Mastering Mock Service Worker in Jest: Patterns, Best Practices, and Pitfalls

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      Mastering Mock Service Worker in Jest: Patterns, Best Practices, and Pitfalls

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    Chapter 13: Conclusion and Next Steps

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      Conclusion and Next Steps

About the Course

Ultimate React Testing with Jest uses Jest as the foundation to introduce practical, production-ready frontend testing that fits the pace of real engineering teams. The book begins by understanding why testing matters and how to approach it the right way, then moves into testing React applications incrementally. Early chapters focus on testing components and user interactions, helping you think in terms of behavior, rather than implementation. As you progress, you will learn how to test hooks, handle asynchronous flows, and manage complex UI states with confidence. It then dives deeper into real-world application concerns, covering state management with Redux and Context, routing, authentication flows, and side effects. In the final chapters, you will bring everything together by measuring test coverage, integrating tests into CI/CD pipelines, and designing test suites that remain stable as applications evolve. Hence, whether you are maintaining legacy code or building new React products from scratch, this book equips you to write tests you can trust—and ship React applications with confidence, speed, and clarity.

About the Author

Sreejith Salgunan is a Senior Frontend Engineer specializing in React, TypeScript, Jest, and React Testing Library. He builds large-scale, production-ready applications and helps teams write reliable and maintainable tests. His expertise spans micro-frontends, Redux, async flows, and modern React testing strategies.