Summary
Covers xUnit v3 testing patterns with migration notes for projects still on v2. You'll use this when writing Fact and Theory tests, setting up class and collection fixtures, or dealing with async lifecycle hooks that now return ValueTask instead of Task. The skill draws clear lines between v3's strongly typed TheoryDataRow and v2's object arrays, which matters during upgrades. It assumes your test project is already scaffolded and stays focused on xUnit mechanics rather than broader testing strategy. Good reference for parallelism configuration and the removal of assertion message parameters in v3.
Install to Claude Code
npx -y skills add wshaddix/dotnet-skills --skill dotnet-xunit --agent claude-codeInstalls into .claude/skills of the current project.
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Plug Mailtrap into your AI workflow and let it handle the email.
Connect Mailtrap MCP →Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →Make coding agent sessions - Searchable, Shareable, Vendor-neutral & Scored.
Try For Free →Your agent targets a perfect 10 Code Health score. Deterministic. Every commit.
Try For Free →Integrate web data into your AI product. One API to scrape website & brand data.
Get API Key Now →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
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