Code Testing Extensions

From the author

Provides file paths to language-specific extension files for the code-testing pipeline. Read this reference-only catalog for extension guidance files (e.g., dotnet.md for .NET, cpp.md for C++). Agents and skills read its bundled files directly; do not invoke this catalog through the model's skill tool.

— the description by .NET (Microsoft)

AutoGineer summary

Written by AutoGineer from the skill’s own files, not by the author

Code Testing Extensions is a non-invocable reference library designed to support automated testing workflows. It provides a structured collection of documentation files covering various programming languages, including .NET, Python, TypeScript, Go, Java, and more. Each entry offers essential guidance on build and test commands, framework-specific patterns, mocking strategies, and common error resolution. Additionally, the catalog includes example files that demonstrate complete testing pipeline cycles, from research and planning to test generation and reporting.

What it does

Provides language-specific testing guidance for multiple programming environments.
Lists standard build and test commands for various testing frameworks.
Offers best practices for mocking, project layout, and framework detection.
Includes concrete examples of full testing pipeline workflows.
Serves as a centralized reference for agents to ensure consistent testing standards.

When to use it

When an agent needs to determine the correct testing commands for a specific language.
When implementing or debugging a testing pipeline for a new project.
When guidance on framework-specific mocking or test structure is required.
When looking for representative examples of a complete test generation cycle.

Advantages

Ensures consistency across different testing environments.
Reduces ambiguity by providing standardized commands and patterns.
Provides both high-level guidance and concrete implementation examples.
Supports a wide range of modern programming languages and frameworks.

Usage examples

“Read extensions/python.md to understand the preferred testing patterns for a pytest project.”: The agent retrieves the Python-specific guidance, identifying the correct test runner commands and mocking strategies to apply.
“Consult extensions/java-examples.md to see how to structure a JUnit 5 test suite.”: The agent reviews the provided example to replicate the established project structure and testing conventions for the Java codebase.

Install

Download the skill as a ZIP:
https://autogineer.com/agent-skills/dotnet/code-testing-extensions/download

Unzip it into the cross-client skills folder of your project:

mkdir -p .agents/skills && unzip code-testing-extensions.zip -d .agents/skills

Documentation by .NET (Microsoft)

This reference-only catalog lists bundled guidance for the code-testing pipeline. Read the matching file directly; do not invoke this catalog as a skill. Resource paths are relative to this catalog, not the project workspace.

Available Extension Files

File	Language	Contents
extensions/dotnet.md	.NET (C#/F#/VB)	Build commands, test commands, project reference validation, common CS error codes, MSTest template
extensions/python.md	Python	Framework-adaptive test commands (pytest, custom runners), project layout detection, mocking guidelines, common errors
extensions/typescript.md	TypeScript/JavaScript	Build/test commands (Jest/Vitest/Mocha), framework detection, mocking, TS-specific considerations
extensions/powershell.md	PowerShell	Test commands (Pester v5), module import patterns, discovery/run pitfalls, mocking, common errors
extensions/cpp.md	C++	Testing internals with friend declarations
extensions/go.md	Go	`go test` commands, table-driven tests, integration vs unit layout, mocking via interfaces, common errors
extensions/java.md	Java	Maven/Gradle commands, JUnit 4/5 and TestNG detection, Mockito, Spring Boot slices, common errors
extensions/rust.md	Rust	`cargo test` commands, unit vs integration vs doc tests, features, async test harnesses, common errors
extensions/ruby.md	Ruby	RSpec and Minitest commands, Bundler usage, Rails specifics, mocking patterns, common errors
extensions/swift.md	Swift	SPM and Xcode test commands, XCTest vs Swift Testing, `@testable import`, async/throws tests, common errors
extensions/kotlin.md	Kotlin	Gradle commands, JUnit/Kotest detection, MockK, coroutines test, KMP and Android specifics, common errors
extensions/dotnet-examples.md	.NET (C#/F#/VB)	Concrete pipeline examples: sample research output, plan, generated tests, fix cycles, final report
extensions/python-examples.md	Python	Concrete pipeline examples (pytest): research, plan, generated test file, fix cycles, final report
extensions/typescript-examples.md	TypeScript/JavaScript	Concrete pipeline examples (Vitest, applicable to Jest): research, plan, generated test file, fix cycles, final report
extensions/go-examples.md	Go	Concrete pipeline examples (standard `testing`): research, plan, table-driven test file, fix cycles, final report
extensions/java-examples.md	Java	Concrete pipeline examples (JUnit 5 + Mockito on Maven): research, plan, generated test file, fix cycles, final report

Usage

Read the appropriate base extension before writing test code. Load an <language>-examples.md file only when the repository has no representative tests and the base extension does not resolve the needed pattern. Do not load end-to-end examples for a focused request with established local conventions.

Files

ATTRIBUTION.mdAdded by AutoGineer857 B
LICENSELicence file added by AutoGineer1.1 KiB
SKILL.md3.7 KiB
extensions/cpp-examples.md9.1 KiB
extensions/cpp.md20.1 KiB
extensions/dotnet-examples.md10.7 KiB
extensions/dotnet.md10.5 KiB
extensions/go-examples.md12.4 KiB
extensions/go.md7.8 KiB
extensions/java-examples.md11.9 KiB
extensions/java.md9.7 KiB
extensions/kotlin-examples.md10.3 KiB
extensions/kotlin.md11.2 KiB
extensions/powershell-examples.md9.1 KiB
extensions/powershell.md12.1 KiB
extensions/python-examples.md12.1 KiB
extensions/python.md11.7 KiB
extensions/ruby-examples.md8.9 KiB
extensions/ruby.md14.7 KiB
extensions/rust-examples.md10.6 KiB
extensions/rust.md8.8 KiB
extensions/swift.md9.4 KiB
extensions/typescript-examples.md12.7 KiB
extensions/typescript.md7.9 KiB

ATTRIBUTION.md

Attribution

This folder is an unmodified copy of the Agent Skill "code-testing-extensions", distributed by AutoGineer (https://autogineer.com/agent-skills).

Source: https://github.com/dotnet/skills/tree/96c3d68dad2855e3ab5178aa1a262789d86a1466/plugins/dotnet-test/skills/code-testing-extensions
Commit: 96c3d68dad2855e3ab5178aa1a262789d86a1466
Published by: .NET (Microsoft) (https://github.com/dotnet)
Publisher: .NET (Microsoft) (https://github.com/dotnet)
Licence: MIT License (https://spdx.org/licenses/MIT.html)
Licence evidence: declared in the frontmatter ("license: MIT")
Retrieved: 2026-11-07

The skill's own files are unmodified copies. AutoGineer is not affiliated with or endorsed by the author or the publisher.

Files added by AutoGineer

ATTRIBUTION.md: this file, written by AutoGineer
LICENSE: copied from LICENSE

Requirements and compatibility

Written for: Claude Code

Works with: Claude Code, Claude apps, OpenAI Codex, GitHub Copilot, Cursor, Gemini CLI, Kiro, OpenCode, Goose, Amp, Roo Code, JetBrains Junie, Factory Droid, Devin (ex-Windsurf), Mistral Vibe, OpenHands, Letta

“Works with” means the tool reads the open Agent Skills format; a skill written for one tool may use features others lack.

Needs: Claude Code frontmatter, Needs Python

Security

What our scanner noticed· Low risk

Instructions that use the network

A static scan is not a guarantee. Skills are third-party content: review a skill before you let an agent use it.

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Download ZIP

The ZIP holds the skill’s files, its licence files and an ATTRIBUTION.md. Download code-testing-extensions.zip