Top 20 NuGet Unit Testing Packages

Provides a complete diffing model of HTML.
Jest wrapper for fast-check
Fable bindings for fast-check
Friendly Traits for Xunit
Utilities to streamline unit testing in Dynamics CRM 365 by faking the IOrganizationService against an In-Memory context which runs blazing fast.
Library for running Xamarin.Forms inside of unit tests
Library for creating Api stubs in .NET.
Utility library to simplify unit tests that must use a database by using MS SQL LocalDB to simulate the real database.
Adds pairwise and combinatorial testing to Xunit. When combined with Xunit's [Theory] attribute, generates test cases that run a test under many conditions that you control via test method parameters.
ServerHost - A .NET Server Hosting utility library, including in-process server host testing.
Includes the libraries for writing tests with xBehave.net. Installing this package installs xunit.core.
Generic performance testing library for executing load-tests written in .NET c# Visit project website for examples.
NUnit addin for reporting test results to https://reportportal.io
A .NET library for using MSTest (and Moq) on top of the ChannelAdam Test Framework.
Testing doubles for EntityFramework.
SpecBind is a bridge library for SpecFlow that allows for users to use as standard step vocabulary to drive their interaction with various web driver platforms, only requiring a light page model to complete interaction with the web site.
NSpec is a BDD-style testing framework for .NET. NSpec is intended to drive development by specifying behavior within a context or scenario. NSpec belongs to the xSpec (Context/Specification) family and is heavily inspired by RSpec and Mocha.
A robust wrapper for browser automation on the .NET platform for Selenium WebDriver or Microsoft Playwright that eases automating ajax-heavy websites and reduces coupling to the HTML, CSS & JS. This package includes the Coypu 4 framework assembly, which should be referenced by your tests. Supported...
An xUnit.net extension for describing your tests using natural language. Installing this package installs Xbehave.Core and xunit.
.NET library for measuring the performance of functions