u003cpu003eForeword by Kent Becku003c/pu003e u003cpu003e u003cbu003e u003c/bu003e u003c/pu003e u003cpu003e u003ciu003e"The authors of this book have led a revolution in the craft of programming by controlling the environment in which software grows.” u003c/iu003e--Ward Cunninghamu003c/pu003e u003cpu003e u003ciu003e u003c/iu003e u003c/pu003e u003cpu003e u003ciu003e“At last, a book suffused with code that exposes the deep symbiosis between TDD and OOD. This one's a keeper.” u003c/iu003e--Robert C. Martinu003c/pu003e u003cpu003e u003c/pu003e u003cpu003e u003ciu003e“If you want to be an expert in the state of the art in TDD, you need to understand the ideas in this book.”--u003c/iu003eMichael Feathersu003c/pu003e u003cpu003e u003c/pu003e u003cpu003eTest-Driven Development (TDD) is now an established technique for delivering better software faster. TDD is based on a simple idea: Write tests for your code before you write the code itself. However, this "simple" idea takes skill and judgment to do well. Now there's a practical guide to TDD that takes you beyond the basic concepts. Drawing on a decade of experience building real-world systems, two TDD pioneers show how to let tests guide your development and “grow” software that is coherent, reliable, and maintainable. u003c/pu003e u003cpu003e u003c/pu003e u003cpu003eSteve Freeman and Nat Pryce describe the processes they use, the design principles they strive to achieve, and some of the tools that help them get the job done. Through an extended worked example, you'll learn how TDD works at multiple levels, using tests to drive the features and the object-oriented structure of the code, and using Mock Objects to discover and then describe relationships between objects. Along the way, the book systematically addresses challenges that development teams encounter with TDD--from integrating TDD into your processes to testing your most difficult features. Coverage includes u003c/pu003e u003cpu003e u003c/pu003e u003cpu003e• Implementing TDD effectively: getting started, and maintaining your momentum u003c/pu003e u003cpu003e throughout the projectu003c/pu003e u003cpu003e• Creating cleaner, more expressive, more sustainable codeu003c/pu003e u003cpu003e• Using tests to stay relentlessly focused on sustaining quality u003c/pu003e u003cpu003e• Understanding how TDD, Mock Objects, and Object-Oriented Design come together u003c/pu003e u003cpu003e in the context of a real software development projectu003c/pu003e u003cpu003e• Using Mock Objects to guide object-oriented designsu003c/pu003e u003cpu003e• Succeeding where TDD is difficult: managing complex test data, and testing persistenceu003c/pu003e u003cpu003e and concurrencyu003c/pu003e u003cpu003e u003c/pu003e