# Dde Ext Cpp Testing

> DDE subordinate extension. C++ test design/execution workflow (CMake/CTest/gtest) with strict DDE write gating.

- Skill: `gabrielmoreira/dde-ext-cpp-testing` (Agent Skill)
- Install (CLI): `npx skillmds@latest add gabrielmoreira/dde-ext-cpp-testing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/gabrielmoreira/dde-ext-cpp-testing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: gabrielmoreira (https://skillmd.com/u/gabrielmoreira)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/gabrielmoreira/dde-ext-cpp-testing

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# DDE Extension: C++ Testing

Skill Version: v0.1

## Authority Chain
- Commander: `dde-bootstrap`
- Write gate: `dde-code-guard`
- This skill cannot directly bypass `[APPROVED]` for code writes.

## When to Use
- Add/fix C++ tests
- Investigate C++ test failures/flakiness
- Improve C++ regression coverage

## Execution Scope
Allowed:
- Analyze C++ test gaps
- Propose/prepare test cases and CTest targets
- Run CMake/CTest/gtest commands
- Produce failure diagnosis

Write-sensitive actions:
- Creating/modifying `*.cpp`, `*.h`, `CMakeLists.txt`, test files
- Must go through handoff + `dde-code-guard`

## Mandatory Flow
1. Identify target component and expected behavior.
2. Map existing tests and missing cases.
3. Run focused tests first, then suite.
4. If changes required, emit handoff:

`DDE_EXTENSION_HANDOFF_REQUIRED`

Fields:
- Reason
- Files to modify
- Proposed test cases
- Minimal impact statement

5. Wait for `[APPROVED]` via `dde-code-guard` before write.

## Output Contract
- Test gap summary
- Command results summary
- Proposed test patch plan
- Handoff block when write is needed