Top 20 NuGet integration-test Packages

Easily spin up PostgreSQL instances for integration tests. It targets .NET Standard 2.0 and .Net Core 3.1. This Nuget package contains the executables of PostgreSQL for Windows, Linux
Automatically fills your testing database with random generated data.
MS SQL Server Dialect for StrangerData data generator.
DotGoodies.Testing.Log4Net helps to configure logging within tests. It can also intercept error and fatal messages so a test can assert this. An integration or unit test can use it during setting the SUT up and during the assertion phase.
Test fixtures for .NET and MongoDB to make integration testin a little easier.
MS SQL Server Dialect for DbFaker data generator.
.NET Datafixtures for Unit Tests
Provides per-integration test database provisioning and database seeding for projects that utilize Entity Framework Core.
DotGoodies.Testing.ApplicationConfiguration provides a programmatic way to change the values stored in application configuration section of a app.config file. An integration or unit test can use it during setting the SUT up.
Provides a mechanism to unit test requests made with HttpClient