Better tests in .NET through Fluent Assertions

I have recently discovered a library for .NET which has improved the way I write my tests for .NET. It works with all major testing frameworks and has two clear benefits:

• It makes your tests much more readable
• It provides clear error messages so you have to limit your debugging activity

This library is called FluentAssertions and is available on NuGet and CodePlex: http://fluentassertions.codeplex.com/

Examples from CodePlex

Simple example

string actual = "ABCDEFGHI";
actual.Should().StartWith("AB").And.EndWith("HI").And.Contain("EF").And.HaveLength(9);

A useful error message

IEnumerable collection = new[] { 1, 2, 3 };
collection.Should().HaveCount(4, "because we thought we put three items in the collection"))
collection.Should().Contain(i => i > 0);

Awesome!