Csharp Xunit

Name: Csharp Xunit
Author: github

Official

github·vlatest·testing·MIT

Generates C# unit tests using XUnit for your backend projects, boosting code reliability and facilitating thorough testing.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

Run this in your project

terminal

$ npx skills add github/awesome-copilot --skill csharp-xunit -a claude-code

Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

github

Matched to the vendor's own GitHub organisation.

Install target

Live repository

Not pinned. Installing fetches whatever the repository holds at the time you run the command.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned 28 Sept 2026

This skill failed 1 of 6 checks. A failure is not proof of bad intent; it means something in the code needs a human to look at it before you run it.

Declares what it does: failed
No SKILL.md was found in the skill's directory.
SKILL.md exists, its frontmatter parses, and it declares a name and a description.
No undeclared network calls: passed
Makes no network calls.
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No obfuscated payloads: passed
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Pinned to a commit: passed
Scanned github/awesome-copilot at 6c4d33b9cf.
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Commit: 6c4d33b9cf
Manifest: skills/csharp-xunit/SKILL.md
Scanned: 0 files

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About this skill

What it does

The csharp-xunit skill enables AI agents to write and execute unit tests in C# using the Xunit testing framework. It supports creating test cases, organizing them into test classes, and asserting expected outcomes for methods or components.

When to use it

You need to verify the correctness of a C# method or class before deployment.
You're working on a .NET project and want to implement automated unit tests.
You are refactoring code and want to ensure existing functionality remains intact.

Key capabilities

Generate Xunit test methods for C# classes and functions
Create test fixtures and theory-based tests
Use assertions like Assert.Equal, Assert.True, and Assert.Throws
Support for mocking dependencies in unit tests

Example prompts

"Write a unit test for the CalculateSum method in the MathUtils class using Xunit."
"Generate a test fixture for the UserService class that includes setup and teardown methods."
"Create a theory-based test to validate the behavior of the ValidateEmail function with multiple input cases."

Tips & gotchas

Ensure your project has Xunit installed via NuGet before running tests.
Use [Fact] for simple tests and [Theory] with [InlineData] for parameterized testing scenarios.