name: dde-ext-cpp-testing
description: "DDE subordinate extension. C++ test design/execution workflow (CMake/CTest/gtest) with strict DDE write gating."

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

1. 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