Top 20 NuGet mocking Packages

NSubstitute is a friendly substitute for .NET mocking frameworks. It has a simple, succinct syntax to help developers write clearer tests. NSubstitute is designed for Arrange-Act-Assert (AAA) testing and with Test Driven Development (TDD) in mind.
Utilities to streamline unit testing in Dynamics CRM 2013 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.
Utilities to streamline unit testing in Dynamics CRM 2015 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.
Utilities to streamline unit testing in Dynamics CRM 2016 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.
Utilities to streamline unit testing in Dynamics CRM 365 by faking the IOrganizationService against an In-Memory context which runs blazing fast.
Utilities to streamline unit testing in Dynamics CRM 365 by faking the IOrganizationService against an In-Memory context which runs blazing fast.
It's what a Mocking Framework should be. Powerful. And it's the first of its kind.
It's faking amazing! The easy mocking framework 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.
The most powerful free mocking library available for .NET developers.
Moq is the most popular and friendly mocking framework for .NET
Fody add-in for changing all members to virtual.
Utilities to streamline unit testing in Dynamics CRM 2011 by faking the IOrganizationService against an In-Memory context which runs blazingly fast.
Library that provides methods that will help you with mocking Entity Framework Core.
Auto-mocking Autofac container that uses NSubstitute.
Contributed features and third-party integration for Moq.
A Collection of fakes for various Microdot components, used for testing. Part of the Microdot framework. See also Gigya.Microdot.Testing.
Tools to help write tests for Microdot services.
Unit testing framework for Sitecore.
Unit testing framework for Sitecore.
Moq auto mocking integration for Stashbox.