Top 20 NuGet testing Packages

A test framework for F#
SlimerJS is similar to PhantomJs, except that it runs on top of Gecko, the browser engine of Mozilla Firefox (specifically, version 31), instead of Webkit https://slimerjs.org/features.html
A configurable template-based HTTP service stub host/generator.
A simple nuget package that just includes other nuget packages I use to make XUnit tests.
NSpectator`s Selenium toolset is a ready-to-use PageObjects for pragmatic development of browser automation and Web user interface acceptance tests and verification. Enjoy using fluent configuration, sessions and page objects to write tests as fast as you think it should works!
Persimmon.Dried.Gen provide value generator for property based testing.
Persimmon.MuscleAssert provide custom assertions for Persimmon.
Makes it easier to use TDD in building actor systems with Akka.NET
ToolKit that makes it easier to use TDD in building and testing actor systems with Akka.NET
Common library for integration with Kepler - QA tool for screenshot-based testing.
Integration with Kepler - QA tool for screenshot-based testing.
Adds support for running NUnit 3 unit tests on Xamarin Supported Xamarin platforms: - Android - iOS - Windows 10 Universal Apps
Library for testing via beTested platform
Cross-platform performance benchmarking and testing framework for .NET applications.
The console runner of Carna testing and specification framework for .NET Platform.
Persimmon.Unquote is a fork of Unquote for Persimmon.
Wrapper classes for System and System.IO for making unit testing easier
Report Portal NUnit2 agent