Top 20 NuGet testing Packages

Criação de objetos com foco em testes - versão em português do FluentBuilder.
A higher-level interface for LocalDb
LogoFX Client Mvvm Tests NUnit containing facilities for writing client tests which use NUnit as test provider.
Utilities for unit testing Asp WebApi Projects. Builds on ApprovalTests
A Norwegian language wrapper for the Shouldly test assertion framework. This library adds no extra functionality, only translates english function and parameter names to Norwegian
SlimerJs wrapper and runner for .Net
MyTested.WebApi is a strongly-typed unit testing library providing an easy fluent interface to test the ASP.NET Web API framework. See the project repository and documentation for more information and an overview of the available features.
NUnitLite provides a simple way to run NUnit tests, without the overhead of a full NUnit installation. This package contains a build of the NUnitLite runner for SilverLight 5.0.
Utilities to simplify automated tests that involve asynchronous operations
MyTested.HttpServer is a unit testing library providing easy fluent interface to test remote HTTP servers. See the project repository and documentation for more information and available features.
A dynamic driver for running Zombie.js from .NET - insanely fast, headless browser testing now available for .NET. ZOMBIES NOT INCLUDED - check out the "zombie.js" package if you don't have Zombie.js installed.
Operate standard web controls by selenium.
A way for performing suite of tests for equality in declarative manner
Windows only. Adds performance counter support to NBench measurements.
A bit more extension methods based on FluentAssertions that allow you to more naturally specify the expected outcome of a xTDD test or specification.
Reposify in-memory implementation for testing.
Reposify NHibernate implementation.
ToolKit that makes it easier to use TDD in building and testing actor systems with Akka.NET
Easy-to-use test run reporter for MSTest
MultiClient is a web load testing library