Cpp Testing

Use only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.

293,665 stars 43,456 forksTesting & QA Plugin marketplace

Install

Claude Code plugin

/plugin marketplace add affaan-m/ECC

The repo is a Claude Code plugin marketplace. Run /plugin afterwards to pick the plugin that includes this skill.

skills CLI (Claude Code, Cursor, Codex and more)

npx skills add affaan-m/ECC --skill cpp-testing

Manual install

git clone --depth 1 https://github.com/affaan-m/ECC.git /tmp/ECC
mkdir -p ~/.claude/skills
cp -r /tmp/ECC/.kiro/skills/cpp-testing ~/.claude/skills/cpp-testing

Personal skills live in ~/.claude/skills. Use .claude/skills in a project folder to share a skill with your team.

From the SKILL.md

# C++ Testing (Agent Skill)

Agent-focused testing workflow for modern C++ (C++17/20) using GoogleTest/GoogleMock with CMake/CTest.

## When to Use

- Writing new C++ tests or fixing existing tests
- Designing unit/integration test coverage for C++ components
- Adding test coverage, CI gating, or regression protection
- Configuring CMake/CTest workflows for consistent execution
- Investigating test failures or flaky behavior
- Enabling sanitizers for memory/race diagnostics

### When NOT to Use

- Implementing new product features without test changes
- Large-scale refactors unrelated to test coverage or failures
- Performance tuning without test regressions to validate
- Non-C++ projects or non-test tasks

## Core Concepts

- **TDD loop**: red → green → refactor (tests first, minimal fix, then cleanups).
- **Isolation**: prefer dependency injection and fakes over global state.
- **Test layout**: `tests/unit`, `tests/integration`, `tests/testdata`.
- **Mocks vs fakes**: mock for interactions, fake for stateful behavior.
- **CTest discovery**: use `gtest_discover_tests()` for stable test discovery.
- **CI signal**: run subset first, then full suite with `--output-on-failure`.

## TDD Workflow

Follow the RED → GREEN → REFACTOR loop:

1. **RED**: write a failing test that captures the new behavior
2. **GREEN**: implement the smallest change to pass
3. **REFACTOR**: clean up while tests stay green

Read the full skill on GitHub

Details

Skill name: cpp-testing
Repository: affaan-m/ECC
Path: .kiro/skills/cpp-testing/SKILL.md
License: MIT
Repo updated: 30 October 2026
Listed in: hesreallyhim/awesome-claude-code

FAQ

What does the Cpp Testing skill do?

Use only when writing/updating/fixing C++ tests, configuring GoogleTest/CTest, diagnosing failing or flaky tests, or adding coverage/sanitizers.

How do I install the Cpp Testing skill?

Claude Code plugin: /plugin marketplace add affaan-m/ECC. Skills go in ~/.claude/skills (personal) or .claude/skills (project), and Claude loads them automatically when a task matches the description.

Is Cpp Testing popular?

It lives in affaan-m/ECC, which has 293,665 GitHub stars and 43,456 forks, and is included in 1 curated skill list.

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