Top 20 NuGet testing Packages

Utilities for unit testing Asp and Asp.Mvc views and routes.
TestKitchen is a small library for testing in .NET.
Ordering XUnit testcase based on priority.
Test sql server database with plain sql scripts.
Middleware to handle Authentication and Authorization for testing purpose.
A fluent assertions library that performs full coverage on enumerable types.
Avoids access to 2 instances of Umbraco backoffice during A/B testing.
A shim to turn a class library containing NUnit fixtures into a console app which can self-run tests
Extensions for VisualStudio UnitTest's Assert class to simplify e.g. testing of view models.
The MS SQL database enabing xUnit extension library.
Provides realtime test monitoring functionality to NUnit using IPC/Named Pipes, Grpc, log files, or StdOut.
TestHost implementation for Blazor components and pages so that you can unit test any type of Blazor component. Runs through the various component lifecycle events, and renders the final html for the Blazor component.
Adds support for running NUnit 3 unit tests on Xamarin Supported Xamarin platforms: - Android - iOS - Windows 10 Universal Apps
Provides some FluentAssertions extensions
Enumerations tests framework is provided as an NUnit based framework sufficient to exercise the majority of boilerplate issues concerning both Ordinal as well as Bitwise Enumerations.
Helpers for unit testing applications.
Framework for creating high-performance servers with domain object models.