Entity Framework Core Cookbook - Second Edition

Unit testing and mocking

Software development is not just writing code. We also need to test it, to confirm that it does what is expected. There are several kinds of tests, and unit tests are one of the most popular. In this chapter, we will set up the unit test framework that will accompany us throughout the book. Another important concept is that of mocking; by mocking a class (or interface), we can provide a dummy implementation of it that we can use instead of the real thing. This comes in handy in unit tests, because we do not always have access to real-life data and environments, and this way, we can pretend we do.

Getting ready

We will be using the NuGet Package Manager to install the Entity Framework Core 1 package, Microsoft.EntityFrameworkCore ...