Top 20 NuGet agile Packages

Moq is the most popular and friendly mocking framework for .NET
Microsoft Team Foundation Server Extended Client Integrate with Microsoft Team Foundation Server and Visual Studio Team Services from desktop-based Windows applications. Work with and manage version control, work items, and build, and other resources from your client application.
Microsoft Team Foundation Server Client Integrate with Team Foundation Server 2017 and Visual Studio Team Services from desktop-based, ASP.NET, and other Windows applications. Provides access to version control, work item tracking, build, and more via public REST APIs.
A C# class library that handles mocking, test data generation, and validation.
It's what a Mocking Framework should be. Powerful. And it's the first of its kind.
Model validations helper for aspnetcore. Allows you to have validations set in places such as your business logic with the help of NetCore.ModelValidation.Core nuget
Core functionality to handle model validation. Allows you to add and list errors mapped to objects and its fields
NSpectator is a ready-to-use solution for development using .NET with Context/Specification flavor. Toolset is intended to be used to drive development through specifying behavior and interaction at the unit level. NSpectator has no dependencies. Feel free to use any assertion library.
Provides Quick Work Item Queries to Team Foundation Server and Visual Studio Online via SOAP APIs
Provides identity extension methods on top of Qwiq.Client.Soap
Provides Quick Work Item Queries to Team Foundation Server and Visual Studio Online
Provides coarse-grained access to VersionOne Asset objects via the REST-based HTTP API for building custom applications against the VersionOne platform.
This library is a contribution to Microsoft Fakes. It allows tests to verify expectations on mocks with an easy and fluent syntax.
Common mock objects for Qwiq
Adds mapping / translation between the Qwiq work items and your own model types
Provides Quick Work Item Queries to Team Foundation Server and Visual Studio Online via REST APIs
An extension of Qwiq.Mapper providing support for identity values.
Provides identity extension methods on top of Qwiq.Core
Agile process template for WiLinq
Extensions of Qwiq.Linq providing identity assistance in LINQ.