NUnit Testing Best Practices
Guides an agent to write C# NUnit unit tests following standard conventions and data-driven patterns.
- Repository
- github/awesome-copilot
- Stars
- 40,703
- Licence
- MIT
- Files
- 1 file
What it does
This skill is a set of written guidelines that tells an AI agent how to write unit tests for C# code using the NUnit testing framework. Once installed, the agent follows conventions for project setup, test naming, arrange-act-assert structure, assertions, data-driven test attributes, and mocking. It only changes how the agent writes and reviews test code; it contains no scripts and does not reach the internet.
Great for
- C# developers who use NUnit and want consistent, well-structured tests
- Teams wanting an agent to generate test classes that follow a shared naming and organization convention
- Developers learning NUnit attributes such as TestCase, TestCaseSource and Combinatorial
Skip it if
- Projects that use xUnit or MSTest instead of NUnit, since the guidance would not match their framework
- Projects not written in C#, because the guidance is specific to .NET test tooling
Try asking
- “Write NUnit tests for my Calculator class using the MethodName_Scenario_ExpectedBehavior naming pattern”
- “Create data-driven tests with TestCase attributes for my date parsing method”
- “Set up a separate Tests project for my .NET solution with the right NUnit packages”
Install in 3 steps
- 1
Download the skill
The ZIP contains the 1 original files, the MIT licence and an attribution note.
csharp-nunit.zip - 2
Add it to your agent
Claude Code (all projects)
mkdir -p ~/.claude/skills && unzip csharp-nunit.zip -d ~/.claude/skills/Claude Code / Agent SDK (this project only)
mkdir -p .claude/skills && unzip csharp-nunit.zip -d .claude/skills/Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.
- 3
Ask for the task
No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.
Get better results
- Name the class or method you want tested so the agent can match the naming convention to your code
- Check generated tests by running dotnet test, since the agent's output still needs verification
- If your project uses a different test framework or a different mocking library, state that explicitly so the agent adjusts
What's inside
- SKILL.md
Redistributed unmodified from github/awesome-copilot under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.