The more I use FluentAssertions, the more I like its flexibility and extensibility. In this post I'm going to focus on assertion rules which can be used to define custom equality comparisons for specific types.
Unit tests best serve their purpose when they are brief and easy to understand. There are cases when it can be difficult to achieve this; nevertheless it's still worth putting in the effort, as it may pay off.
When working with complex data structures in your unit tests, you often end up with a lot of plumbing code. FluentAssertions is a library for .NET framework which can simplify your assertion code and at the same time make the error messages much clearer when tests fail.