Top 20 NuGet unit Packages

Repository over Specification pattern
Implementing the Repository pattern for use MongoDb
Algorithms used to persist object state - shared resources
Algorithms used to persist object state with Entity Framework Core
This is a unit Of Work Repository for asp.net core app. In this repository , Query Executor and UnitOfWork separate. You can now perform query execution by injecting IQueryExecutor
Small (almost cross Database: SQL Server, MySql, Postgres and SqLite) tool for create/delete database, execute queries and retrieve data mainly designed to help to set up infrastructure for unit tests
Features that depend on MS Test.
NetStandard2.0 and NetCoreApp2.2 Utilities for Crud API System - Unit Of Work Interface: should be referenced only by API project for Commit and Rollback actions.
A simple C# implementation of the Unit of Work pattern for use with IDbConnection, as well a Saga implementation for orchestrating transactions across domains.
A set of tools to make the arrange phase of unit and integration tests for projects in .Net simpler. Find usage documentation here: https://github.com/johnkuefler/DotnetTestUtils
A helper library for serializing and deserializing types in Units.NET using Json.NET.
Repository and Unit of Work implementation using Entity Framework Core
NHibernate ISession context provider
Spring.NET REST Client Testing Framework
Enables unit testing of applications that use MongoDB official driver by providing interfaces and proxy classes for key types such as MongoDatabase, MongoServer, MongoCursor and MongoCollection.
Adds some base implementations for using repositories and unit of work pattern with the Entity Framework
Machine.Specifications.Mvc is a set of extensions for testing ASP.Net MVC specific types. It aims to ease the testing of ActionResult objects returned from MVC Controllers by providing an Machine.Specifications (MSpec) BDD syntax over these types.
Configures the project as a self-running NSpec test project with the NUnit GUI. Also contains an addin for NUnit that performs the magic of integrating with NSpec.
.NET extensions and helpers for LINQPad.