Top 20 NuGet test Packages

Abstractions for AXProxy.Framework
Xamarin.Mac framework for UI test automation
Improves code analysis by enhancing the functionality of MSTest.
Enes Aysan, test nuget package
IcuBlazor: Tools and components for Blazor development and testing
Provides an Xunit test framework allowing you to run integration tests against local ephemeral Elasticsearch clusters
Mcs.AspNetCore.TestBase
A C#/ASP.NET Core Web Application used to write test automation with NUnit.
A simple .NET framework for writing and running microtests. It features self-executing test assembiles, isolation of tests, fluent assertions and close easy conversion from NUnit.
A .NET unit test runner for the console/terminal.
Yet another WebApi tester is a .Net standard 2.1 assembly that can be used with test frameworks like NUnit to run tests against a web api.
Package Description
An xunit attribute to provide skip functionality to any xunit test discoverer. You specify the FactAttribute type ( FactAttribute and TheoryAttribute have their own helper attributes FactConditional and TheoryConditional ) that you may potentially want to skip then apply ITestCondition attributes....
Launch and control dotnet processes wrapped into the coverlet code coverage analyzer.
First protractor adapter. In order for the adapter to work, you need to install protractor on the machine where the tests will execute
Tests constructors in a given assembly or class for ArgumentNullExceptions.