With the clarity and precision intrinsic to the Test-Driven Development (TDD) process itself, experts James Newkirk and Alexei Vorontsov demonstrate how to implement TDD principles and practices to drive lean, efficient coding-and better design. The best way to understand TDD is to see it in action, and Newkirk and Vorontsov walk step by step through TDD and refactoring in an n-tier, .NET-connected solution. And, as members of the development team for NUnit, a leading unit-testing framework for Microsoft .NET, the authors can offer matchless insights on testing in this environment-ultimately making their expertise your own.

Test first-and drive ambiguity out of the development process:

• Document your code with tests, rather than paper
• Use test lists to generate explicit requirements and completion criteria
• Refactor-and improve the design of existing code
• Alternate programmer tests with customer tests
• Change how you build UI code-a thin layer on top of rigorously tested code
• Use tests to make small, incremental changes-and minimize the debugging process
• Deliver software that's verifiable, reliable, and robust