Summary

FIRSTHAND accumulates valuable guidelines and best practices in the industry. I trust this chapter topped up the learnings of the previous chapters to help you understand TDD and its ecosystem. I also hope that it made these guidelines memorable as TDD comes up often in developer discussions and it is certainly likely to be an interview topic.

This chapter marks the end of this section, where we looked at dependency injection, unit testing, and TDD. This section was only an introduction to TDD, with scattered small and mid-size examples. If you’ve made it to this point, then hats off, you have covered the basics of TDD.

The next section will take all the basics and apply them to more lifelike scenarios. To make sure that you are ready for this application and to mimic a realistic application that uses TDD, our next chapter will be about domain-driven design (DDD) as you will be using the DDD concepts in later chapters.