You learned how to write tests for models, view controllers, and networking code using the TDD workflow. Of course, an introductory book can only cover an overview of the wide topic of TDD.

There is more to learn (as always). This chapter starts with a recap of what we have covered in the book so far. Then, it'll go on to describe certain possible topics that you can take a look at next.

This chapter covers the following topics:

• What you have learned so far
• Integration tests
• UI tests
• Behavior-Driven Development
• TDD in existing projects
• More information on TDD