Top 20 NuGet Unit Testing Packages

Remove test references from an assembly.
FsCheck.Xunit integrates FsCheck with xUnit.NET by adding a PropertyAttribute that runs FsCheck tests, similar to xUnit.NET's FactAttribute. All the options normally available in vanilla FsCheck via configuration can be controlled via the PropertyAttribute.
Dynamic mocking framework for .NET
Unit test framework for Bridge.NET projects. Write tests in C#, run them in JavaScript.
ReportGenerator converts XML reports generated by OpenCover, dotCover, Visual Studio, NCover or Cobertura or into human readable reports in various formats. The reports do not only show the coverage quota, but also include the source code and visualize which line has been covered. Use this package ...
The EventSource Analyzer is part of the Semantic Logging Application Block. It can be incorporated into your automated tests to help validate your EventSource instances.
QUnit installation into Bridge.NET projects.
Script helper for Persimmon
Persimmon.Dried is a random testing library for Persimmon.
Persimmon.Dried.Ext is Persimmon.Dried extensions for C#.
F# wrapper library for Akka.NET TestKit library using FsCheck and xUnit.
Hedgehog will eat all your bugs.
Visual Studio 2017+ Test Explorer runner for Persimmon. Capable of running Persimmon v4.0+ tests. Supported platforms: - Desktop .NET 4.5.1+ - .NET Core 2.0+
Ghpr.LocalFileSystem: Data provider package to work with local files
White is a framework for automating rich client applications based on Win32, WinForms, WPF, Silverlight and SWT (Java) platforms. It is .NET based and does not require the use of any proprietary scripting languages. Tests/automation programs using White can be written with whatever .NET language, ID...
Generic performance testing library for executing load-tests written in .NET c# Visit project website for examples. WIP Library: Namespace and project name might still change, once proper name is decided.
Library for running Xamarin.Forms inside of unit tests
Report Portal SpecFlow agent
eShopWorld common test stack
It's what a Mocking Framework should be. Powerful. And it's the first of its kind.