Top 20 NuGet stubs Packages

It's faking amazing! The easy mocking library for .NET that works great in C# and VB.NET alike. No need to know the difference between a stub, a mock or a spy, everything's a fake! The easy to use, refactoring friendly API makes faking a breeze.
Autofac extension supporting generation of FakeItEasy objects.
A C# class library that handles mocking, test data generation, and validation.
Autofac extension supporting generation of NSubstitute objects.
Foq is a lightweight thread-safe mocking library for F#, C#, and VB with a similar API to Moq.
A library for creating Http servers on the fly in tests and stubbing responses. The verification calls have now moved to HttpMock.Verify.NUnit. Use HttpMock.Logging.Log4Net for logging to the console.
framework for faking external web services for acceptance tests
A configurable template-based HTTP service stub host/generator.
Is a great tool to improve your stubs tests. Inspired in FFaker, a great Ruby test feature, Fact bring the same experiênce to C# developers
Foq2 is a lightweight thread-safe mocking library for F# 4 with a similar API to Moq.
Easy mocking for EntityFramework 6.
MagicMoq is an extension to the Moq mocking framework – It is like an IoC container that injects mocked dependencies when resolving a type, making the job of creating testing subjects much easier (and nicer).
The Moq.FSharp.Extensions provide extension methods and functions to enhance the Moq experience in F#.
Centaur is a library to launch IISExpress for test automation.
A library for verifying HTTP calls, mocked with HttpMock
An extension for HttpMock(hibri) with concurrency support With the current changes now this will support: 1.Concurrency. 2.Session. 3.Private/Shared Mocks (in the context of initializing a single HttpMock server with parallel running scenarios ) 4.Wi...
An extension for HttpMock(hibri) with concurrency support for running scenario in parallel
Subs for unit testing AspNetCore HttpContext
Provides common testing utilities as well as common Fakes assemblies.
Information can be retrieved from both a hardcoded objects or from a serialization. There are pros and cons in both cases. But information stored as text is easy to deal with, and this library handles maping and data retrieval so developer can focus on creating tests about the problem at hand.