xUnit.net is a unit testing framework for .NET, and its own page is not among the candidates. The sources show the closest matches: NUnit is a .NET unit-testing framework 3, and GitHub indexes an xUnit best-practices action for writing xUnit tests 111. Microsoft also indexes a test-writing action covering xUnit, MSTest and NUnit 212.
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GitHubgithub.comverified and signed
Hosts an xUnit best-practices action covering unit testing and data-driven tests for xUnit 111.
official:CLI · github-mcp-serverskill · add-community-extensionskill · git-commitskill · acquire-codebase-knowledge+2,468 community tools built for it
for agents: csharp-xunit · csharp-tunit · csharp-nunit
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Microsoftmicrosoft.comverified and signed
Indexes a code-testing action for writing or repairing tests in xUnit, MSTest and NUnit 212.
official:library · Microsoft.OpenApiskill · microsoft-foundryskill · appinsights-instrumentation+136 community tools built for it
for agents: code-testing · testability-obstacle · .NET
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Sources
- 1GitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHubgithub.com · read 2026-10-29
- 2Microsoft – AI, Cloud, Productivity, Computing, Gaming & Appsmicrosoft.com · read 2026-10-29
- 3NUnit.orgnunit.org · read 2026-10-29
- 4codewithmukesh - .NET 10 Tutorials, Benchmarks & Coursescodewithmukesh.com · read 2026-10-30
- 11csharp-xunit: declares "csharp-xunit" (the record we read and signed)unfragile.ai · read 2026-10-24
- 12code-testing: declares "code-testing" (the record we read and signed)unfragile.ai · read 2026-10-24
- 14testing: declares "testing" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
csharp-xunit · csharp-xunit verified and signed
Get best practices for XUnit unit testing, including data-driven tests
code-testing · code-testing verified and signed
ALWAYS USE for test work that requires changes: write, add, generate, repair, or strengthen tests for existing code in xUnit, MSTest, NUnit, pytest, Vitest/Jest, Go, or another framework. Includes regression cases, failing or flaky tests, coverage-driven additions, and audit-then-fix requests. Focus
framework · NUnit verified and signed
testing · testing verified and signed
Testing strategy for .NET 10 applications. Covers xUnit v3, WebApplicationFactory for integration tests, Testcontainers for real database testing, Verify for snapshot testing, and the AAA pattern. Load this skill when writing tests, setting up test infrastructure, reviewing test coverage, or when th
· AutoFixture website read, tools not yet checked
AutoFixture makes unit tests more productive by creating anonymous test data for .NET.
property-based-testing · hypothesis verified and signed
xUnit · FluentAssertions verified and signed
dotnet · Testcontainers verified and signed
aspnet-core · aspnet-core verified and signed
Build, review, refactor, or architect ASP.NET Core web applications using current official guidance for .NET web development. Use when working on Blazor Web Apps, Razor Pages, MVC, Minimal APIs, controller-based Web APIs, SignalR, gRPC, middleware, dependency injection, configuration, authentication
PostTestHelpersTestClocks · Stripe API verified and signed
Create a test clock
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