Top 23 C# unit-testing Projects

unit-testing

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1. xUnit

   1 44 4,444 9.6 C#

   xUnit.net is a free, open source, community-focused unit testing tool for .NET.

   

   Project mention: Primeiros testes unitários em C# com xUnit (parte 1) | dev.to | 2025-04-04

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. Cake

   2 16 4,065 8.9 C#

   :cake: Cake (C# Make) is a cross platform build automation system.

   

   Project mention: We enforce .NET codingstandards to improve productivity | news.ycombinator.com | 2025-08-08

   I've met teams that strongly prefer Cake [1] and it seems well maintained.

   Personally, I think there's too much baby in the MSBuild bathwater unfortunately and too much of the ecosystem is MSBuild to abandon it entirely. That said, I think MSBuild has improved a lot over the last few years. The Sdk-Style .csproj especially has been a great improvement that sanded a lot of rough edges.

   [1] https://cakebuild.net/

4. Fluent Assertions

   3 15 3,807 9.4 C#

   A very extensive set of extension methods that allow you to more naturally specify the expected outcome of a TDD or BDD-style unit tests. Targets .NET Framework 4.7, as well as .NET Core 2.1, .NET Core 3.0, .NET 6, .NET Standard 2.0 and 2.1. Supports the unit test frameworks MSTest2, NUnit3, XUnit2, MSpec, and NSpec3.

   

   Project mention: Fluent Assertions 8: Corporate License Update | dev.to | 2025-01-17

   The new commercial license costs $129.95 per developer per year. This pricing structure impacts organizations, especially those with larger development teams or multiple projects utilizing Fluent Assertions.

5. AutoFixture

   4 13 3,486 2.3 C#

   AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.

   

   Project mention: Why I moved from AutoFixture to Bogus for test data generation for C#/xUnit tests | dev.to | 2025-07-05

   AutoFixture and Bogus are both well-known libraries for generating test data in C# tests. AutoFixture is, well, dated whereas Bogus is state of the art.

6. abot

   5 1 2,289 0.0 C#

   Cross Platform C# web crawler framework built for speed and flexibility. Please star this project! +1.

   

7. Rubberduck

   6 24 2,039 8.4 C#

   Every programmer needs a rubberduck. COM add-in for the VBA & VB6 IDE (VBE).

   

8. bUnit

   7 4 1,243 8.0 C#

   bUnit is a testing library for Blazor components that make tests look, feel, and runs like regular unit tests. bUnit makes it easy to render and control a component under test’s life-cycle, pass parameter and inject services into it, trigger event handlers, and verify the rendered markup from the component using a built-in semantic HTML comparer.

   

9. Sevalla

   sevalla.com featured

   Deploy and host your apps and databases, now with $50 credit! Sevalla is the PaaS you have been looking for! Advanced deployment pipelines, usage-based pricing, preview apps, templates, human support by developers, and much more!

   

10. vstest

    8 7 936 9.3 C#

    Visual Studio Test Platform is the runner and engine that powers test explorer and vstest.console.

    

    Project mention: How to Speak Directly in Robinhood? | news.ycombinator.com | 2024-09-09

11. Onion-architecture-ASP.NET-Core

    9 1 918 7.1 C#

    WhiteApp API solution template which is built on Onion Architecture with all essential feature using .NET 8!

    

12. Machine.Specifications

    10 1 896 3.7 C#

    Machine.Specifications is a Context/Specification framework for .NET that removes language noise and simplifies tests.

    

13. List-of-Testing-Tools-and-Frameworks-for-.NET

    11 1 574 7.0 C#

    ✅ List of Automated Testing (TDD/BDD/ATDD/SBE) Tools and Frameworks for .NET

    

14. TcUnit

    12 1 339 7.5 C#

    An unit testing framework for Beckhoff's TwinCAT 3

    

15. DNTFrameworkCore

    13 1 317 0.0 C#

    Lightweight and Extensible Infrastructure for Building Web Applications - Web Application Framework

    

16. Moq.Contrib.HttpClient

    14 0 191 0.0 C#

    A set of extension methods for mocking HttpClient and IHttpClientFactory with Moq.

    

17. SystemWrapper

    15 0 176 0.0 C#

    .NET library for easier testing of system APIs.

    

18. entity-framework-core-mock

    16 1 133 0.0 C#

    Easy Mock wrapper for mocking EFCore5 DbContext and DbSet using Moq or NSubstitute

    

19. fluentassertions.analyzers

    17 1 132 7.8 C#

    Analyzers based on the FluentAssertions best practices docs

    

20. PeakLimsApi

    18 7 69 8.5 C#

    🧬 Source-available fair-code licensed LIMS. The laboratory software you'll enjoy using.

    

21. movie-search-application

    19 3 41 2.0 C#

    🎬 A simple movie search app, built with .Net 9, Vertical Slice Architecture and using TMDB APIs and YouTube APIs for searching and details of the movies.

    

22. StoreCleanArchitecture-NET

    20 3 27 1.0 C#

    This is a basic project to demonstrate an introduction about the implementation of Clean Architecture on .NET

    

23. UnityEntities-AutomatedTests-Sample

    21 1 9 5.6 C#

    A sample how to write Unit and Performance tests for a game that uses Unity.Entities

    

24. qest

    22 4 9 4.3 C#

    A simple, cross platform, command line tool to test MSSQL procedures

    

25. Mecha

    23 1 8 8.7 C#

    Mecha is a library designed to test your code in ways you probably never thought of before. It automatically finds edge cases and exceptions in your code with no input needed. Just point it at a class or method and fire away. It's even better than a cat laying on your keyboard at finding weird data for your tests. (by JaCraig)

    

26. SaaSHub

    www.saashub.com featured

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

    

C# unit-testing related posts

• Primeiros testes unitários em C# com xUnit (parte 1)

  3 projects | dev.to | 4 Apr 2025

• TDD helper in c#

  2 projects | dev.to | 23 Jan 2025

• Fluent Assertions 8: Corporate License Update

  5 projects | dev.to | 17 Jan 2025

• From Bug Fixes to Best Practices: My Open Source Contributions to ChatCraft and xUnit

  3 projects | dev.to | 20 Nov 2024

• Hacktoberfest 4/4: The final PR

  3 projects | dev.to | 27 Oct 2024

• Testcontainers: Testes de Integração em Containers

  3 projects | dev.to | 9 Sep 2024

• How to Speak Directly in Robinhood?

  1 project | news.ycombinator.com | 9 Sep 2024
• A note from our sponsor - InfluxDB
  www.influxdata.com | 1 Sep 2025

  InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now. Learn more →

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