If you didn't before, you should now have a good idea of what TDD is and why it is important. You have been exposed to unit tests in C# and JavaScript and how writing tests first can help grow an application.

As we continue, we'll learn more about TDD. We'll explore what it means to write testable code.

In Chapter 6, Setting Up the .NET Test Environment, we'll set up your development environment and explore additional aspects of a unit test.