In this chapter, we discussed IoC, DI, and unit testing. We covered multiple ways of implementing DI in an ASP.NET Core project and then learned the basics of unit testing in ASP.NET Core.
If you want to learn more about DI and IoC containers, a great place to start is a classic article on the topic by software engineer and public speaker Martin Fowler at http://www.martinfowler.com/articles/injection.html .
In the next chapter, we will cover authentication, authorization, and security in ASP.NET Core web applications.