coverage

# Test Coverage Assistant | 測試覆蓋率助手 Analyze test coverage across multiple dimensions and provide actionable recommendations. 多維度分析測試覆蓋率並提供可執行的建議。 > **Related**: For requirement-level coverage (which AC have tests?), use `/ac-coverage` instead. This skill (`/coverage`) focuses on code-level coverage (lines, branches, functions). > > **相關**：如需需求層級覆蓋率（哪些 AC 有對應測試？），請改用 `/ac-coverage`。此技能（`/coverage`）專注於程式碼層級覆蓋率。 ## Coverage Dimensions | 覆蓋率維度 | Dimension | What it Measures | 測量內容 | |-----------|------------------|----------| | **Line** | Lines of code executed | 執行的程式碼行數 | | **Branch** | Decision paths taken | 決策路徑覆蓋 | | **Function** | Functions called | 呼叫的函數 | | **Statement** | Statements executed | 執行的陳述式 | ## 8-Dimension Framework | 八維度框架 1. **Code Coverage** - Lines, branches, functions 2. **Requirement Coverage** - All requirements have tests 3. **Risk Coverage** - High-risk areas prioritized 4. **Integration Coverage** - Component interaction paths 5. **Edge Case Coverage** - Boundary conditions tested 6. **Error Coverage** - Error handling paths verified 7. **Permission Coverage** - Access control scenarios 8. **AI Generation Quality** - AI-generated test effectiveness ## Coverage Targets | 覆蓋率目標 | Level | Coverage | Use Case | 適用場景 | |-------|----------|----------|----------| | Minimum | 60% | Legacy code | 遺留程式碼 | | Standard | 80% | Most projects | 大多數專案 | | High | 90% | Critical systems | 關鍵系統 | | Critical | 95%+ | Safety-critical | 安全關鍵 | ## Workflow | 工作流程 1. **Run coverage tool** - Generate coverage report | 產生覆蓋率報告 2. **Analyze gaps** - Identify untested areas | 識別未測試區域 3. **Prioritize** - Rank by risk and importance | 依風險排序 4. **Recommend tests** - Suggest specific tests to add | 建議新增測試 5. **Track progress** - Monitor coverage over time | 追蹤進度 ## Usage | 使用方式 ``` /coverage - Run full coverage analysis | 執行完整覆蓋率分析 /coverage src/auth - Analyze specific module | 分析特定模組 /coverage --recommend - Get test recommendations | 取得測試建議 ``` ## Next Steps Guidance | 下一步引導 After `/coverage` completes, the AI assistant should suggest: > **覆蓋率分析完成。建議下一步 / Coverage analysis complete. Suggested next steps:** > - 覆蓋率不足 → 執行 `/tdd` 補齊測試 — Coverage gaps → Run `/tdd` to add tests > - 已達標 → 執行 `/checkin` 品質關卡 ⭐ **Recommended / 推薦** — Targets met → Run `/checkin` quality gates > - 發現熱點 → 執行 `/refactor` 改善可測試性 — Hotspots found → Run `/refactor` ## Reference | 參考 - Detailed guide: [guide.md](./guide.md) - Core standard: [test-completeness-dimensions.md](../../core/test-completeness-dimensions.md) ## AI Agent Behavior | AI 代理行為 > 完整的 AI 行為定義請參閱對應的命令文件：[`/coverage`](../commands/coverage.md#ai-agent-behavior--ai-代理行為) > > For complete AI agent behavior definition, see the corresponding command file: [`/coverage`](../commands/coverage.md#ai-agent-behavior--ai-代理行為)