Introduction: Building an Application Using TDD

In this chapter, we’re going to learn the practical side of TDD by building the application test first. We’re also going to use an approach known as agile software development as we build. Being agile means building our software in small, self-contained iterations instead of building it all at once. These small steps allow us to learn more about the software design as we go.

Agile software development with TDD

We adapt and refine the design over time as we become more certain of how a good design might look. We can offer working functionality to early test users and receive their feedback long before the application is complete. This is valuable. As we’ve seen in earlier sections, TDD is an excellent approach for providing rapid feedback on self-contained pieces of software. It’s the perfect complement to agile development.