test(#315): CoreAudioTapGatewayのカバレッジ0%をスモークテストで解消 (#316)

![agent](https://img.shields.io/badge/agent-claude-D97757)
![type](https://img.shields.io/badge/type-test-blue)
![breaking](https://img.shields.io/badge/breaking-no-green)
![scope](https://img.shields.io/badge/scope-coverage-blue)
![diff](https://img.shields.io/badge/diff-+94%20--3-green)
![files](https://img.shields.io/badge/files-4%20files-green)
![tests](https://img.shields.io/badge/tests-added-green)
![review](https://img.shields.io/badge/review-quick%20look-green)

Closes #315

## <img
src="https://mojiemoji.jozo.beer/emoji/%E6%A6%82%E8%A6%81?font=toge&amp;color=f43f5e&amp;animation=kage_neon&amp;background=transparent&amp;outline=5ef43f&amp;outline_width=2"
alt="概要" height="20" align="absmiddle">

<img
src="https://mojiemoji.jozo.beer/emoji/PR?font=hachimaru&amp;color=ef4444&amp;animation=bure&amp;background=transparent&amp;outline=44ef44&amp;outline_width=2"
alt="PR" height="20" align="absmiddle"> #314 で独立モジュール化した
`CoreAudioTapGateway` に<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=zero&amp;color=a78bfa&amp;animation=chirichiri&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle">ターゲットが無く<img
src="https://mojiemoji.jozo.beer/emoji/%E3%82%AB%E3%83%90%E3%83%AC?font=maru&amp;color=facc15&amp;animation=kirari&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="カバレ" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%83%E3%82%B8?font=maru&amp;color=facc15&amp;animation=kirari&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="ッジ" height="20" align="absmiddle"> 0% だったのを、<img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> 実行<img
src="https://mojiemoji.jozo.beer/emoji/%E5%8F%AF%E8%83%BD?font=noto&amp;color=4ade80&amp;animation=mochimochi&amp;background=transparent&amp;outline=4a16a3&amp;outline_width=2"
alt="可能" height="20" align="absmiddle">なスモーク<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=hachimaru&amp;color=f43f5e&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=5ef43f&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/5?font=zero&amp;color=fb923c&amp;animation=kira&amp;background=transparent&amp;outline_width=0"
alt="5" height="20" align="absmiddle">本で<img
src="https://mojiemoji.jozo.beer/emoji/%E8%A7%A3%E6%B6%88?font=gothic-bold&color=34d399&animation=mochimochi&speed=slow&background=transparent&outline=9934d3&outline_width=2"
alt="解消" height="24" align="absmiddle">する。ローカル<img
src="https://mojiemoji.jozo.beer/emoji/%E8%A8%88%E6%B8%AC?font=kurobara&amp;color=f43f5e&amp;animation=patapata&amp;background=transparent&amp;outline=5ef43f&amp;outline_width=2"
alt="計測" height="20" align="absmiddle">で行<img
src="https://mojiemoji.jozo.beer/emoji/%E3%82%AB%E3%83%90%E3%83%AC?font=maru&amp;color=facc15&amp;animation=kirari&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="カバレ" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%83%E3%82%B8?font=maru&amp;color=facc15&amp;animation=kirari&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="ッジ" height="20" align="absmiddle"> **0% → 85.5%**（関数 10/12）。

## <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=maru-bold&amp;color=fbbf24&amp;animation=yokomoya&amp;background=transparent&amp;outline=06d977&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%86%85%E5%AE%B9?font=gothic&amp;color=fdba74&amp;animation=kira&amp;background=transparent&amp;outline_width=0"
alt="内容" height="20" align="absmiddle">

| <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=zero&amp;color=a78bfa&amp;animation=chirichiri&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle"> | <img
src="https://mojiemoji.jozo.beer/emoji/%E6%A4%9C%E8%A8%BC?font=gothic&amp;color=22c55e&amp;animation=nami&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="検証" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%86%85%E5%AE%B9?font=maru-bold&amp;color=a855f7&amp;animation=mochimochi&amp;background=transparent&amp;outline=f7a855&amp;outline_width=2"
alt="内容" height="20" align="absmiddle"> | <img
src="https://mojiemoji.jozo.beer/emoji/%E6%B1%BA%E5%AE%9A?font=noto&amp;color=fb923c&amp;animation=zairu&amp;background=transparent&amp;outline=0cea58&amp;outline_width=2"
alt="決定" height="20" align="absmiddle">性 |
|---|---|---|
| invalid object IDs → nil | `processPid` / `tapFormat` / `createIOProc`
の guard <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%91%E3%82%B9?font=pixel&amp;color=a78bfa&amp;animation=mabataki&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="パス" height="20" align="absmiddle"> | <img
src="https://mojiemoji.jozo.beer/emoji/%E6%B1%BA%E5%AE%9A?font=noto&amp;color=fb923c&amp;animation=zairu&amp;background=transparent&amp;outline=0cea58&amp;outline_width=2"
alt="決定" height="20" align="absmiddle">的 |
| destroy on invalid IDs | `destroyAggregateDevice` /
`destroyProcessTap` がエラーを<img
src="https://mojiemoji.jozo.beer/emoji/%E5%AE%89%E5%85%A8?font=chikara&amp;color=f472b6&amp;animation=disco&amp;background=transparent&amp;outline_width=0"
alt="安全" height="20" align="absmiddle">に無視 | <img
src="https://mojiemoji.jozo.beer/emoji/%E6%B1%BA%E5%AE%9A?font=noto&amp;color=fb923c&amp;animation=zairu&amp;background=transparent&amp;outline=0cea58&amp;outline_width=2"
alt="決定" height="20" align="absmiddle">的 |
| `processObjects` + pid 解決 | TCC <img
src="https://mojiemoji.jozo.beer/emoji/%E4%B8%8D%E8%A6%81?font=mincho&amp;color=8b5cf6&amp;animation=gatagata&amp;background=transparent&amp;outline=f68b5c&amp;outline_width=2"
alt="不要" height="20" align="absmiddle">の HAL メタデータクエリ。実プロセスオブジェクトで
`processPid` の<img
src="https://mojiemoji.jozo.beer/emoji/%E6%88%90%E5%8A%9F?font=maru&amp;color=10b981&amp;animation=bure&amp;background=transparent&amp;outline=8110b9&amp;outline_width=2"
alt="成功" height="20" align="absmiddle">系もカバー | 環境依存（nil 許容） |
| aggregate device round-trip | `createAggregateDevice` → `createIOProc`
→ `start`/`stop` → `destroyIOProc` → `destroyAggregateDevice` | 環境依存（nil
許容） |
| `createProcessTap` guard <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%91%E3%82%B9?font=chikara&amp;color=facc15&amp;animation=patapata&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="パス" height="20" align="absmiddle"> | TCC 未<img
src="https://mojiemoji.jozo.beer/emoji/%E8%A8%B1%E5%8F%AF?font=tamanegi&amp;color=c084fc&amp;animation=zairu&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="許可" height="20" align="absmiddle">の無人ランナーでエラー → nil | **<img
src="https://mojiemoji.jozo.beer/emoji/CI?font=kurobara&amp;color=22c55e&amp;animation=tatemoya&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> 限定** |

## <img
src="https://mojiemoji.jozo.beer/emoji/%E8%A8%AD%E8%A8%88?font=tamanegi&amp;color=3b82f6&amp;animation=yurayura&amp;background=transparent&amp;outline=f63b82&amp;outline_width=2"
alt="設計" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%88%A4%E6%96%AD?font=kurobara&amp;color=06b6d4&amp;animation=yurayura&amp;background=transparent&amp;outline=d406b6&amp;outline_width=2"
alt="判断" height="20" align="absmiddle">

- **nil 許容のスモーク粒度** — HAL の状態に依存するステップは<img
src="https://mojiemoji.jozo.beer/emoji/%E6%88%90%E5%8A%9F?font=gothic-bold&amp;color=facc15&amp;animation=mochimochi&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="成功" height="20" align="absmiddle">を assert せず、<img
src="https://mojiemoji.jozo.beer/emoji/%E5%A4%B1%E6%95%97?font=maru-bold&amp;color=3b82f6&amp;animation=yokomoya&amp;background=transparent&amp;outline=f63b82&amp;outline_width=2"
alt="失敗" height="20" align="absmiddle">時は<img
src="https://mojiemoji.jozo.beer/emoji/%E6%97%A9%E6%9C%9F?font=gothic-bold&amp;color=f472b6&amp;animation=tatemoya&amp;background=transparent&amp;outline=77db27&amp;outline_width=2"
alt="早期" height="20" align="absmiddle"> return。ヘッドレス <img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> ランナーでの flaky を避ける（issue #315
の方針どおり）。ローカル実機では round-trip が実際に<img
src="https://mojiemoji.jozo.beer/emoji/%E5%AE%8C%E8%B5%B0?font=gothic-bold&color=60a5fa&animation=zairu&speed=slow&background=transparent&outline=fa60a5&outline_width=2"
alt="完走" height="24" align="absmiddle">することを<img
src="https://mojiemoji.jozo.beer/emoji/%E7%A2%BA%E8%AA%8D?font=gothic-bold&amp;color=d946ef&amp;animation=zairu&amp;background=transparent&amp;outline=efd946&amp;outline_width=2"
alt="確認" height="20" align="absmiddle">済み
- **`createProcessTap` は `CI` 環境変数でゲート** — ローカルの `swift test` で System
Audio Recording の TCC プロンプトが出るのを防ぐ。GitHub Actions では `CI=true` が立つので
guard <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%91%E3%82%B9?font=chikara&amp;color=facc15&amp;animation=patapata&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="パス" height="20" align="absmiddle">が実行される
- **codecov ignore への<img
src="https://mojiemoji.jozo.beer/emoji/%E8%BF%BD%E5%8A%A0?font=kurobara&amp;color=60a5fa&amp;animation=psycho&amp;background=transparent&amp;outline_width=0"
alt="追加" height="20" align="absmiddle">はしない** — ignore は protocol / stub
/ wiring 専用（coverage-ignored-modules の<img
src="https://mojiemoji.jozo.beer/emoji/%E5%8E%9F%E5%89%87?font=pixel&amp;color=fbbf24&amp;animation=tatemoya&amp;background=transparent&amp;outline=06d977&amp;outline_width=2"
alt="原則" height="20" align="absmiddle">）。covered module として<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=zero&amp;color=a78bfa&amp;animation=chirichiri&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%8F%AF%E8%83%BD?font=noto&amp;color=4ade80&amp;animation=mochimochi&amp;background=transparent&amp;outline=4a16a3&amp;outline_width=2"
alt="可能" height="20" align="absmiddle">な<img
src="https://mojiemoji.jozo.beer/emoji/%E7%AF%84%E5%9B%B2?font=gothic-bold&amp;color=8b5cf6&amp;animation=zairu&amp;background=transparent&amp;outline=f68b5c&amp;outline_width=2"
alt="範囲" height="20" align="absmiddle">を<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=hachimaru&amp;color=f43f5e&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=5ef43f&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle">する `DarwinGateway` との<img
src="https://mojiemoji.jozo.beer/emoji/%E5%AF%BE%E7%A7%B0?font=mincho&amp;color=10b981&amp;animation=zairu&amp;background=transparent&amp;outline=8110b9&amp;outline_width=2"
alt="対称" height="20" align="absmiddle">性を保つ

## <img
src="https://mojiemoji.jozo.beer/emoji/%E5%AF%BE%E8%B1%A1?font=gothic-bold&amp;color=f97316&amp;animation=gatagata&amp;background=transparent&amp;outline=16f973&amp;outline_width=2"
alt="対象" height="20" align="absmiddle">外（Humble Object の残渣）

`createProcessTap` の<img
src="https://mojiemoji.jozo.beer/emoji/%E6%88%90%E5%8A%9F?font=gothic-bold&amp;color=facc15&amp;animation=mochimochi&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="成功" height="20" align="absmiddle">系（noErr 分岐）は TCC <img
src="https://mojiemoji.jozo.beer/emoji/%E8%A8%B1%E5%8F%AF?font=gothic&amp;color=34d399&amp;animation=gatagata&amp;background=transparent&amp;outline=9934d3&amp;outline_width=2"
alt="許可" height="20" align="absmiddle">＋実音源が<img
src="https://mojiemoji.jozo.beer/emoji/%E5%BF%85%E9%A0%88?font=akzk&amp;color=60a5fa&amp;animation=ekken&amp;background=transparent&amp;outline=fa60a5&amp;outline_width=2"
alt="必須" height="20" align="absmiddle">で無人 <img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> では実行不<img
src="https://mojiemoji.jozo.beer/emoji/%E5%8F%AF%E8%83%BD?font=noto&amp;color=4ade80&amp;animation=mochimochi&amp;background=transparent&amp;outline=4a16a3&amp;outline_width=2"
alt="可能" height="20" align="absmiddle">。VM レーン／実機<img
src="https://mojiemoji.jozo.beer/emoji/%E6%A4%9C%E8%A8%BC?font=tamanegi&amp;color=06b6d4&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=d406b6&amp;outline_width=2"
alt="検証" height="20" align="absmiddle">の領分として未カバーを<img
src="https://mojiemoji.jozo.beer/emoji/%E8%A8%B1%E5%AE%B9?font=maru&color=94a3b8&animation=yurayura&speed=slow&background=transparent&outline=b894a3&outline_width=2"
alt="許容" height="24" align="absmiddle">する。

## <img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> プロセス<img
src="https://mojiemoji.jozo.beer/emoji/%E5%88%86%E9%9B%A2?font=mincho&amp;color=22c55e&amp;animation=ekken&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="分離" height="20" align="absmiddle">（初回<img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle">の<img
src="https://mojiemoji.jozo.beer/emoji/%E5%A4%B1%E6%95%97?font=hachimaru&amp;color=f472b6&amp;animation=mozaiku&amp;background=transparent&amp;outline=b6f472&amp;outline_width=2"
alt="失敗" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%AF%BE%E5%BF%9C?font=maru&amp;color=fdba74&amp;animation=chirichiri&amp;background=transparent&amp;outline=74fdba&amp;outline_width=2"
alt="対応" height="20" align="absmiddle">）

初回の<img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle">実行で、本スイートと<img
src="https://mojiemoji.jozo.beer/emoji/%E5%90%8C%E4%B8%80?font=dela&amp;color=34d399&amp;animation=ekken&amp;background=transparent&amp;outline=9934d3&amp;outline_width=2"
alt="同一" height="20" align="absmiddle">プロセス内で並列実行される
`WallpaperPresenterTests`（実 `AVPlayer` を使用）が約20件タイムアウトする<img
src="https://mojiemoji.jozo.beer/emoji/%E5%B9%B2%E6%B8%89?font=zero&amp;color=a78bfa&amp;animation=poyoon&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="干渉" height="20" align="absmiddle">が<img
src="https://mojiemoji.jozo.beer/emoji/%E7%99%BA%E7%94%9F?font=noto&amp;color=60a5fa&amp;animation=tate_scroll&amp;background=transparent&amp;outline=eb2563&amp;outline_width=2"
alt="発生" height="20" align="absmiddle">した（新スイート<img
src="https://mojiemoji.jozo.beer/emoji/5?font=zero&amp;color=fb923c&amp;animation=kira&amp;background=transparent&amp;outline_width=0"
alt="5" height="20" align="absmiddle">本自体は全<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%91%E3%82%B9?font=gothic&amp;color=a855f7&amp;animation=kirari&amp;background=transparent&amp;outline=f7a855&amp;outline_width=2"
alt="パス" height="20"
align="absmiddle">・各0.9秒未満）。ヘッドレスランナー上でのHAL接触（aggregate device の<img
src="https://mojiemoji.jozo.beer/emoji/%E7%94%9F%E6%88%90?font=maru&amp;color=facc15&amp;animation=tate_scroll&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="生成" height="20" align="absmiddle">/破棄・tap 試行）が AVFoundation 系の<img
src="https://mojiemoji.jozo.beer/emoji/%E5%88%9D%E6%9C%9F?font=zero&amp;color=3b82f6&amp;animation=mabataki&amp;background=transparent&amp;outline=f63b82&amp;outline_width=2"
alt="初期" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E5%8C%96?font=zero&amp;color=3b82f6&amp;animation=mabataki&amp;background=transparent&amp;outline=f63b82&amp;outline_width=2"
alt="化" height="20" align="absmiddle">を不<img
src="https://mojiemoji.jozo.beer/emoji/%E5%AE%89%E5%AE%9A?font=gothic&amp;color=c084fc&amp;animation=bure&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="安定" height="20" align="absmiddle">化させたと推定される。`test.yml` で本スイートのみを別の
swift-test プロセスで実行するよう<img
src="https://mojiemoji.jozo.beer/emoji/%E5%88%86%E9%9B%A2?font=mincho&amp;color=22c55e&amp;animation=ekken&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="分離" height="20" align="absmiddle">し（`--skip` / `--filter`）、profdata
は<img
src="https://mojiemoji.jozo.beer/emoji/%E6%97%A2%E5%AD%98?font=dela&amp;color=f472b6&amp;animation=kira&amp;background=transparent&amp;outline_width=0"
alt="既存" height="20" align="absmiddle">の `*.profdata` マージへ<img
src="https://mojiemoji.jozo.beer/emoji/%E5%90%88%E6%B5%81?font=noto&amp;color=fbbf24&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=06d977&amp;outline_width=2"
alt="合流" height="20" align="absmiddle">させた。ローカルの `swift test`
は従来どおり全スイート一括で<img
src="https://mojiemoji.jozo.beer/emoji/%E5%95%8F%E9%A1%8C?font=mincho&amp;color=facc15&amp;animation=zairu&amp;background=transparent&amp;outline=04ca8a&amp;outline_width=2"
alt="問題" height="20" align="absmiddle">ない（実オーディオデバイスのある環境では<img
src="https://mojiemoji.jozo.beer/emoji/%E5%B9%B2%E6%B8%89?font=akzk&amp;color=eab308&amp;animation=yokomoya&amp;background=transparent&amp;outline=08eab3&amp;outline_width=2"
alt="干渉" height="20" align="absmiddle">は<img
src="https://mojiemoji.jozo.beer/emoji/%E5%86%8D%E7%8F%BE?font=maru&amp;color=eab308&amp;animation=ekken&amp;background=transparent&amp;outline=08eab3&amp;outline_width=2"
alt="再現" height="20" align="absmiddle">しない）。

## <img
src="https://mojiemoji.jozo.beer/emoji/%E6%A4%9C%E8%A8%BC?font=tamanegi&amp;color=06b6d4&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=d406b6&amp;outline_width=2"
alt="検証" height="20" align="absmiddle">

- `swift test` — 全 1151 <img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=hachimaru&amp;color=f43f5e&amp;animation=yoko_scroll&amp;background=transparent&amp;outline=5ef43f&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle">（273 スイート）<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%91%E3%82%B9?font=pixel&color=4ade80&animation=yatta&speed=normal&background=transparent&outline=804ade&outline_width=2"
alt="パス" height="24" align="absmiddle">
- `make lint` — クリーン
- `xcrun llvm-cov report` — <img
src="https://mojiemoji.jozo.beer/emoji/%E5%AF%BE%E8%B1%A1?font=maru-bold&amp;color=8b5cf6&amp;animation=psycho&amp;background=transparent&amp;outline_width=0"
alt="対象" height="20" align="absmiddle">ファイル行<img
src="https://mojiemoji.jozo.beer/emoji/%E3%82%AB%E3%83%90%E3%83%AC?font=kurobara&amp;color=22c55e&amp;animation=chirichiri&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="カバレ" height="20" align="absmiddle"><img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%83%E3%82%B8?font=kurobara&amp;color=22c55e&amp;animation=chirichiri&amp;background=transparent&amp;outline=5e22c5&amp;outline_width=2"
alt="ッジ" height="20" align="absmiddle"> 85.54%（ローカル、<img
src="https://mojiemoji.jozo.beer/emoji/CI?font=rampart&amp;color=c084fc&amp;animation=gatagata&amp;background=transparent&amp;outline=fcc084&amp;outline_width=2"
alt="CI" height="20" align="absmiddle"> 限定<img
src="https://mojiemoji.jozo.beer/emoji/%E3%83%86%E3%82%B9%E3%83%88?font=zero&amp;color=a78bfa&amp;animation=chirichiri&amp;background=transparent&amp;outline=ed7c3a&amp;outline_width=2"
alt="テスト" height="20" align="absmiddle">除く）


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Added automated coverage for Core Audio tap and aggregate-device
workflows, including creation, startup, shutdown, and cleanup scenarios.
* Added validation for handling invalid audio object identifiers safely.

* **Chores**
  * Updated the application version to **2.20.6**.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: GeneralD

.github/workflows/test.yml

@@ -48,14 +48,25 @@ jobs:
           PROFDATA="$BIN/codecov/default.profdata"
           COVERAGE_DIR="$RUNNER_TEMP/coverage"
           mkdir -p "$COVERAGE_DIR"
-          swift test --enable-code-coverage
+          # CoreAudioTapGatewayTests exercises the live CoreAudio HAL
+          # (aggregate-device churn, process-tap attempt). On a headless
+          # runner that destabilizes AVPlayer-dependent suites sharing the
+          # same process, so it runs in its own swift-test process (#315).
+          swift test --enable-code-coverage --skip CoreAudioTapGatewayTests
 
           if [[ ! -f "$PROFDATA" ]]; then
             echo "Coverage profile not found: $PROFDATA"
             exit 1
           fi
+          cp "$PROFDATA" "$COVERAGE_DIR/main.profdata"
 
-          cp "$PROFDATA" "$COVERAGE_DIR/default.profdata"
+          swift test --enable-code-coverage --filter CoreAudioTapGatewayTests
+
+          if [[ ! -f "$PROFDATA" ]]; then
+            echo "Coverage profile not found: $PROFDATA"
+            exit 1
+          fi
+          cp "$PROFDATA" "$COVERAGE_DIR/gateway.profdata"
 
           echo "coverage_dir=$COVERAGE_DIR" >> "$GITHUB_OUTPUT"
 

Package.swift

@@ -515,6 +515,10 @@ let package = Package(
                 "Domain",
             ]
         ),
+        .testTarget(
+            name: "CoreAudioTapGatewayTests",
+            dependencies: ["CoreAudioTapGateway"]
+        ),
         .testTarget(name: "EntityTests", dependencies: ["Entity"]),
         .testTarget(
             name: "AsyncRunnableCommandTests",

Sources/VersionHandler/Resources/version.txt

@@ -1 +1 @@
-2.20.5
+2.20.6

Tests/CoreAudioTapGatewayTests/CoreAudioTapGatewayTests.swift

@@ -0,0 +1,76 @@
+import CoreAudio
+import CoreAudioTapGateway
+import Foundation
+import Testing
+
+/// CI-runnable smoke tests for the live CoreAudio pass-through (#315).
+///
+/// Every wrapper is guard-based, so exercising each call covers its lines
+/// even when the HAL refuses the operation. Environment-dependent steps
+/// (aggregate device creation on a headless runner) tolerate `nil` instead
+/// of asserting success — the untestable residue is the process-tap happy
+/// path, which needs the System Audio Recording TCC grant plus a live audio
+/// source and stays out of scope here.
+///
+/// CI runs this suite in its own swift-test process (see test.yml): on a
+/// headless runner the live HAL churn destabilizes AVPlayer-dependent
+/// suites sharing the process (empirically: WallpaperPresenter timeouts).
+@Suite("CoreAudioTapGateway", .serialized)
+struct CoreAudioTapGatewayTests {
+    private let gateway = CoreAudioTapGateway()
+    private let invalid = AudioObjectID(kAudioObjectUnknown)
+
+    @Test("invalid object IDs take the guard path and return nil")
+    func invalidObjectIDsReturnNil() {
+        #expect(gateway.processPid(of: invalid) == nil)
+        #expect(gateway.tapFormat(of: invalid) == nil)
+        #expect(gateway.createIOProc(aggregateID: invalid, block: { _, _, _, _, _ in }) == nil)
+    }
+
+    @Test("destroy calls on invalid IDs are safely ignored")
+    func destroyOnInvalidIDsIsIgnored() {
+        gateway.destroyAggregateDevice(invalid)
+        gateway.destroyProcessTap(invalid)
+    }
+
+    @Test("processObjects queries the HAL and resolves pids without TCC")
+    func processObjectsResolvePids() {
+        let objects = gateway.processObjects()
+        #expect(objects.allSatisfy { $0 != invalid })
+        let pids = objects.compactMap(gateway.processPid(of:))
+        #expect(pids.allSatisfy { $0 > 0 })
+    }
+
+    @Test("aggregate device round-trip: create → IOProc → start/stop → destroy")
+    func aggregateDeviceRoundTrip() {
+        let description: [String: Any] = [
+            kAudioAggregateDeviceNameKey: "lyra-test-aggregate",
+            kAudioAggregateDeviceUIDKey: UUID().uuidString,
+            kAudioAggregateDeviceIsPrivateKey: true,
+        ]
+        guard let aggregateID = gateway.createAggregateDevice(description) else { return }
+        defer { gateway.destroyAggregateDevice(aggregateID) }
+        guard
+            let ioProcID = gateway.createIOProc(
+                aggregateID: aggregateID, block: { _, _, _, _, _ in })
+        else { return }
+        defer { gateway.destroyIOProc(aggregateID: aggregateID, ioProcID: ioProcID) }
+        guard gateway.start(aggregateID: aggregateID, ioProcID: ioProcID) else { return }
+        gateway.stop(aggregateID: aggregateID, ioProcID: ioProcID)
+    }
+
+    @Test("createProcessTap without a TCC grant takes the guard path")
+    func processTapWithoutPermission() {
+        // Creating a process tap can raise the System Audio Recording TCC
+        // prompt on a developer machine, so this runs only on CI, where the
+        // unattended denial exercises the error → nil guard path.
+        guard ProcessInfo.processInfo.environment["CI"] == "true" else { return }
+        guard #available(macOS 14.4, *) else { return }
+        guard
+            let tapID = gateway.createProcessTap(
+                CATapDescription(stereoMixdownOfProcesses: []))
+        else { return }
+        _ = gateway.tapFormat(of: tapID)
+        gateway.destroyProcessTap(tapID)
+    }
+}