1.stryker-mutator / stryker-net
Mutation testing for .NET core and .NET framework!
- mutation-testing
- stryker
- dotnet-core
- dotnet-framework
- hacktoberfest
- dotnet-stryker
+83 stars
from 2,038 · score 4.43
Trending repositories
Ranked by Attention Score: stars gained over the last 90 complete days
34 repositories by Attention Score · Aug 6, 2026 – Nov 3, 2026 (UTC)
2.dotnet / BenchmarkDotNet
Powerful .NET library for benchmarking
- benchmark
- benchmarking
- c-sharp
- dotnet
- performance
- csharp
- +1 more
+81 stars
from 11,446 · score 4.41
3.AnthonyLloyd / CsCheck
Random testing library for C#
- quickcheck
- testing
- random
- regression-testing
- performance-testing
- concurrency-testing
- +6 more
+61 stars
from 210 · score 4.13
4.TNG / ArchUnitNET
A C# architecture test library to specify and assert architecture rules in C# for automated testing.
+54 stars
from 1,340 · score 4.01
5.bchavez / Bogus
:card_index: A simple fake data generator for C#, F#, and VB.NET. Based on and ported from the famed faker.js.
- fake
- data
- generator
- dotnet
- csharp
- faker
- +8 more
+53 stars
from 9,700 · score 3.99
6.testcontainers / testcontainers-dotnet
A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.
- automation
- dotnet
- docker
- testcontainers
- hacktoberfest
- testcontainers-dotnet
- +1 more
+42 stars
from 4,331 · score 3.76
7.shouldly / shouldly
Should testing for .NET—the way assertions should be!
- assertion
- testing
- unit
- should
+30 stars
from 3,395 · score 3.43
8.microsoft / testfx
This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.
- dotnet
- microsoft
- mstest
- test
- test-framework
- tdd
- +10 more
+30 stars
from 1,027 · score 3.43
9.xunit / xunit
xUnit.net is a free, open source, community-focused unit testing tool for .NET.
- unit-testing
- xunit
- c-sharp
- dotnet
+28 stars
from 4,583 · score 3.37
10.VerifyTests / Verify
Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.
- snapshot-testing
- testing
- assertion-library
- snapshot
+28 stars
from 3,445 · score 3.37
+27 stars
from 6,387 · score 3.33
12.ChangemakerStudios / Papercut-SMTP
Papercut SMTP -- The Simple Desktop Email Server
+25 stars
from 3,312 · score 3.26
13.nsubstitute / NSubstitute
A friendly substitute for .NET mocking libraries.
- c-sharp
- dotnet
- dot-net
- testing
- testing-tools
- test
- +6 more
+21 stars
from 2,962 · score 3.09
14.coverlet-coverage / coverlet
Cross platform code coverage for .NET
- code-coverage
- dotnet-core
- unittest
- coverage
- cross-platform
- coverage-library
- +4 more
+18 stars
from 3,163 · score 2.94
15.FakeItEasy / FakeItEasy
The easy mocking library for .NET
- mocking
- fake-objects
- dotnet
- dotnet-core
- hacktoberfest
+18 stars
from 1,836 · score 2.94
16.bUnit-dev / bUnit
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.
- razor-components
- unit-testing
- blazor
- blazor-components
- xunit
- nunit
- +8 more
+17 stars
from 1,293 · score 2.89
17.nunit / nunit
NUnit Framework
- nunit-framework
- tdd
- testing
- test-framework
- test-driven-development
- dotnet
- +3 more
+16 stars
from 2,616 · score 2.83
18.fluentassertions / fluentassertions
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.
- fluent-assertions
- c-sharp
- assertions
- tdd
- bdd-style
- unit-testing
- +3 more
+13 stars
from 3,800 · score 2.64
19.AutoFixture / AutoFixture
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.
- assertion-library
- assertions
- auto-mocking
- autofixture
- dotnet
- fakeiteasy
- +13 more
+12 stars
from 3,526 · score 2.56
20.scientistproject / Scientist.net
A .NET library for carefully refactoring critical paths. It's a port of GitHub's Ruby Scientist library
+8 stars
from 1,485 · score 2.20
21.LightBDD / LightBDD
BDD framework allowing to create easy to read and maintain tests.
- nunit
- mbunit
- xunit
- mstest
- bdd-style
- test-framework
- +6 more
+8 stars
from 470 · score 2.20
22.mariotoffia / FluentDocker
Use docker/podman, compose local and remote via a FluentAPI
+7 stars
from 1,381 · score 2.08
23.richardszalay / mockhttp
Testing layer for Microsoft's HttpClient library. Create canned responses using a fluent API.
+6 stars
from 1,758 · score 1.95
24.SwissLife-OSS / snapshooter
Snapshooter is a snapshot testing tool for .NET Core and .NET Framework
- testing
- net
- snapshot
- snapshot-testing
- xunit
- json
- +3 more
+5 stars
from 331 · score 1.79
+4 stars
from 2,819 · score 1.61
26.MADE-Apps / legerity
A framework for speeding up the development of automated UI tests for Windows, Android, iOS, and Web with Appium/Selenium on .NET
+4 stars
from 90 · score 1.61
+3 stars
from 1,344 · score 1.39
28.dariusz-wozniak / List-of-Testing-Tools-and-Frameworks-for-.NET
✅ List of Automated Testing (TDD/BDD/ATDD/SBE) Tools and Frameworks for .NET
- tdd
- test-driven-development
- dotnet
- atdd
- acceptance-test-driven-development
- acceptance-testing
- +13 more
+2 stars
from 589 · score 1.10
29.Warewolf-ESB / Warewolf
Effortless Microservice Design and Integration. This repository includes the code-base for the Warewolf Studio and Server.
- warewolf
- c-sharp
- eula
- microservices
- flow-based-programming
- flowchart
- +14 more
+2 stars
from 278 · score 1.10
30.ivaylokenov / MyTested.AspNetCore.Mvc
Fluent testing library for ASP.NET Core MVC.
- asp-net-core
- mvc
- fluent-testing
- assertion-methods
- assertion-library
- asp-net-core-mvc
- +1 more
+1 stars
from 1,708 · score 0.69
31.atata-framework / atata
C#/.NET test automation framework for web
+1 stars
from 501 · score 0.69
32.itlibrium / DDD-starter-dotnet
Sample implementation and comparison of various approaches to building DDD applications. Useful as a baseline to quickly start a DDD dot net project.
- ddd
- ddd-example
- ddd-patterns
- hexagonal-architecture
- bdd
- event-sourcing
- +1 more
+1 stars
from 404 · score 0.69
33.nspec / NSpec
A battle hardened testing framework for C# that's heavily inspired by Mocha and RSpec.
+1 stars
from 260 · score 0.69
34.thomhurst / BDTest
BDTest - Behaviour Driven Testing
+1 stars
from 91 · score 0.69