Are your tests slowing you down instead of speeding you up? Do refactors feel risky, and deadlines force you to cut corners? Many developers know the importance of testing but struggle to make it practical, efficient, and consistent in real-world projects.

This book provides the solution: a proven, hands-on guide to mastering Test-Driven Development (TDD) with xUnit, JUnit 5, and Jest. By focusing on the red-green-refactor cycle, it shows you how to transform tests from a chore into a powerful tool for design, safety, and speed. Whether you work on backend systems in .NET or Java, or build rich frontends in JavaScript and TypeScript, you’ll gain the skills to create resilient, maintainable software that scales.

Through practical examples and battle-tested workflows, you’ll learn how to:

Write meaningful tests first, ensuring every line of code has a purpose.
Apply xUnit and JUnit 5 effectively for backend testing, with real integration into CI/CD pipelines.
Use Jest and modern libraries to test frontend logic and components with confidence.
Refactor with freedom, supported by a safety net of robust, fast-running tests.
Incorporate strategies for mocking, contract testing, performance checks, and distributed systems.
Balance speed and depth under deadlines without sacrificing quality.
Build test-friendly workflows for both startups chasing speed and enterprises managing scale.

This isn’t theory—it’s packed with actionable techniques, runnable code, and real-world case studies that mirror the challenges developers face daily. You’ll discover how to replace fragile, afterthought testing with developer-driven TDD that accelerates delivery, improves design, and reduces bugs before they ever reach production.

If you’re ready to write cleaner code, ship faster features, and gain the confidence that comes from knowing your work is solid, this book is for you.

Stop fighting your tests. Start letting them power your development. Order your copy today and transform the way you build software.

"About this title" may belong to another edition of this title.

Store Description

We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first visit or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

Visit Seller's Storefront

Seller's business information

Pbshop.co.uk Ltd
Unit 22 Horcott Industrial Estate, Horcott Road, Fairford, GL7 4BX, United Kingdom

Sale & Shipping Terms

Terms of Sale

Returns Policy
We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
If you wish to return, please contact us within 14 days of receiving your order to obtain authorisation.

Returns requested beyond this time will not be authorised.

Our team will provide full instructions on how to return your order and once received our returns department will process your refund.
Please note the cost to return any...

More Information

Shipping Terms

Books are shipped from UK warehouse. Delivery thereafter is between 4 and 14 business days dependant upon your location - please do contact us with any queries you may have.

Shipping rates within U.S.A.

Shipping rates within U.S.A.
Order quantity	7 to 14 business days	7 to 14 business days
First item	US$ 0.00	US$ 0.00

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.