Top 20 NuGet test Packages

Ms Test Support to allow for create, run one or more docker images while testing using docker, compose, machine (Linux, Windows, Mac) using netcore or full framework. Documentation: https://github.com/mariotoffia/FluentDocker
All you need to unit test (scopes are supported) components depending on Microsoft.Extensions.Logging.
Test class generator to drive automated web ui tests with Selenium and SpecFlow 2.4 Works with BrowserStack, SauceLabs, TestingBot, CrossbrowserTesting and any WebDriver grid. Based on Baseclass.Contrib.SpecFlow.Selenium.NUnit.
Trumpf.Coparoo.Web is a .NET library for C# that helps you write fast, maintainable, robust and fluent web tests based on the control/page/root-object (Coparoo) pattern.
Unit test helpers providing alternate syntax for testing with Moq
SpecsFor is another Behavior-Driven Development framework that focuses on ease of use for *developers* by minimizing testing friction. This is package simply forwards to SpecsFor.StructureMap for backwards compatibility.
NUnit.Mocks was originally developed for internal use in NUnit's own tests, although we no longer use it for that purpose. In addition, it has been useful as a teaching tool, allowing users to gain familiarity with mocking techniques before moving on to more serious frameworks. For production use,...
Easily create fake HTTP endpoints for integration testing
Build tasks and targets for running tests with Test Platform
A platform for packaging and deploying .NET-based automation scripts to provide a complete pipeline-as-code solution for building, testing, and deploying projects. Photon Framework contains the core components required to develop Photon projects and plugins.
MVC functional tests with a fixture pattern
TestFactory is a utility which helps composing and orchestrating test runs. TestFactory allows to create collections of test steps and guarantees that test steps run in a specific order. The result of a test run is summarized in a test summary.
NDbUnit for Sql Server targets; NDbUnit is a framework for managing database state during data-dependent unit tests
NTestDataBuilder has been renamed to TestStack.Dossier.
MvcRouteTester is a .Net library to help unit testing ASP MVC route tables. It contains asserts for for both regular controllers and the Api controllers that are new in MVC 4.0. It is built in .Net 4.5 and ASP MVC 5.2.3. See the project page for packages for ASP MVC 51, 5.0 and ASP MVC 4.0
Provides a base class for tests based on Microsoft.Extensions.DependencyInjection. Use common Startup.cs patterns like ConfigureConfiguration(...), ConfigureServices(...) and Configure(...) to setup your tests.
Interface that allows Internal Navigation Testing for Behaviour Driven Development Test Library for Xamarin.Forms
My Tested ASP.NET Core MVC common abstractions and interfaces.
NSubstitute auto mocking integration for Stashbox.
C#/.NET package for Atata configuration through JSON files. The package targets .NET Standard 2.0, which supports .NET 5+, .NET Framework 4.6.1+ and .NET Core/Standard 2.0+. Atata.Configuration.Json on GitHub: https://github.com/atata-framework/atata-configuration-json Atata Framework documentatio...