Top 20 NuGet testing Packages

A set of abstractions to help make file system interactions testable.
Allows to run simple SMTP server stub on selected port
A BDD library for testing C# code.
Core dependency for AssertNET: AssertJ style fluent assertions for .NET Standard.
TestFlask.Assistant.Mvc
Set of generic arbitraries to help test graphQL queries and mutations.
Helpers for testing events with Muflone
A testing suite for testing UX functionality of web apps.
Hierarchical categories for NUnit. Supports .NET Framework 4.0+ and .NET Core/Standard 2.0+. NUnitExtras.HierarchicalCategories on GitHub: https://github.com/YevgeniyShunevych/nunitextras-hierarchicalcategories
Auto Health Check Application Insight Integration.
Unit Testing with Local Functions 🐯 Use Xunit to write TDD or BDD tests: ✔️ Arrange / Act / Assert ✔️ Given / When / Then ✔️ Context / Specification
Auto-mocked Unit Testing with Local Functions 🐯 Use the traditional Unit Testing Frameworks to write TDD or BDD tests: ✔️ Arrange / Act / Assert ✔️ Given / When / Then ✔️ Context / Specification Use NSubstitute to: ✔️ Mock / Fake / Stub
Azure Storage Integration for AutoHealthCheck.
Easy to use, small, SignalR Core unit testing support with MSTest and Moq. For Nunit or xUnit version see my github.
Generates fake data and fills your objects with them.