Top 20 NuGet nunit Packages

Extension methods for accessing private fields / properties for unit test projects. Supported platform: - .NET Framework 4.0+ - .NET Core 2.0+
StatLight: Tool for executing Silverlight test xap packages or dll assemblies locally during development and in a continuous integration environment.
Beanoh.NET is a simple open source way to verify you Spring context. Teams that leverage Beanoh spend less time focusing on configuring Spring and more time adding business value
Gets you up and going with a DotNet app quicker by providing common classes to help with writing automated tests.
NUnitForms is an NUnit extension for unit and acceptance testing of Windows Forms applications.
Provides the NUnit and Moq integration classes for TestFirst.Net. See TestFirst.Net docs
pvcbuild plugin to run NUnit tests
Sourcery for SauceLabs - Unlocking SauceLabs capability (Commercial product from fullcirclesolutions.com.au. Only $499.)
Crawler-Lib Concurrency Testing allows to write unit tests with multiple threads to test the concurrency behavior of components. It has synchronization mechanisms to control the workflow of the threads and to record the execution steps. It is also possible to use it for client/server tests. ...
Brings an AutoMockFeature which initializes AutoFixture with FakeItEasy.
Collection of various katas to practice Test Driven Development.
Test base class and utility methods.
Adds support for running NUnit 3 unit tests on Xamarin Supported Xamarin platforms: - Android - iOS - Windows 10 Universal Apps
Sourcery for SauceLabs - Unlocking SauceLabs capability (Commercial product from fullcirclesolutions.com.au. Only $99.)
Basic Framework for creating integration tests of Rest API services with Restsharp.
*TestBase* gives you a flying start with - fluent assertions that are simple to extend - sharp error messages - tools to help you test with “heavyweight” dependencies on - AspNetCore.Mvc, AspNet.Mvc 3-5, or WebApi Contexts - HttpClient - Ado.Net - Streams & Logging - Mix & match with your ...
This package allows you to monkey-test your functions, by providing wide-ranging values for function arguments (Null, Default, Min, Max, Random). It lets you use all combinations of these values for your tests as well.
A lightweight framework for creating unit tests for Roslyn diagnostic analyzers, code fixes and refactorings using NUnit. This is a NetStandard retarget of Dustin Campbell's library, targetting newer versions of CodeAnalysis packages.
SpecsFor is another Behavior-Driven Development framework that focuses on ease of use for *developers* by minimizing testing friction.