Top 20 NuGet Unit Testing Packages

NTestCaseBuilder library samples. It will add some C# sample files into a folder 'Samples\NTestCaseBuilder' within the referencing project. These samples can be built and run, mostly as NUnit tests.
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.
Simplifies xUnit support in ApprovalTests.
Adds support for running NUnit 3 unit tests on Xamarin Supported Xamarin platforms: - Android - iOS - Windows 10 Universal Apps
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.
Provides some FluentAssertions extensions
Avoids access to 2 instances of Umbraco backoffice during A/B testing.
TestKitchen is a small library for testing in .NET.
A fluent assertions library that performs full coverage on enumerable types.
Ordering XUnit testcase based on priority.
Test sql server database with plain sql scripts.
Middleware to handle Authentication and Authorization for testing purpose.
Tool for generating data testing with xunit extensions.
The MS SQL database enabing xUnit extension library.
Provides realtime test monitoring functionality to NUnit using IPC/Named Pipes, Grpc, log files, or StdOut.
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.