[finding] TEST_DEBT 的 `tests` 字段是闸门自己已经算出来的数字,却手写在台账里 —— 19 条中 12 条已漂(runtime 记 66,实测 101)

[baozhoutao]

Observation-class finding,做 #5278(PR 见其中)时顺手量到。今天没有任何东西是红的,没有闸门失败,没有用户受影响。

背景

#5278 给 scripts/check-type-check-coverage.mjs 的 DEBT / TEST_DEBT errors 数字装上了真棘轮:每次 --re-measure 重跑 tsc --noEmit,实测 > 记录即红。那一单的范围到此为止。

但 TEST_DEBT 条目有两个手写数字:

'@objectstack/runtime': { tests: 66, errors: 220, note: '…' },

errors 现在被重测了,tests 没有。而 tests(该包被 tsconfig 排除掉、因而对 tsc 隐形的测试文件数)恰恰是这个脚本每次运行都已经算出来的量 —— testCoverage() 返回的 pkg.testFiles,亚秒级、无需构建,evaluate() 里就在用它判 TESTS_COVERED。

实测(main @ 5ab08428,#5278 重测前)

包	台账 tests	闸门实算 testFiles
@objectstack/runtime	66	101
@objectstack/objectql	87	125
@objectstack/lint	39	61
@objectstack/rest	35	56
@objectstack/plugin-auth	26	34
@objectstack/plugin-approvals	13	19
@objectstack/formula	13	16
@objectstack/driver-mongodb	7	15
@objectstack/plugin-sharing	11	13
@objectstack/platform-objects	8	9
@objectstack/trigger-record-change	4	5
@objectstack/verify	2	4

19 条里 12 条已漂,方向全部向上,最大 66 → 101(+53%)。剩下 7 条精确。

（#5278 的 PR 已把这 12 个数字更新到实测值,所以下表在该 PR 落地后是准的 —— 但机制没变,明天再加一个测试文件就又漂了。）

为什么它一直是绿的

和 #5278 的机制同源但更简单:evaluate() 从不比较 tests 和 testFiles,只在 errors 上做非空/正数断言。tests 纯粹是给人读的描述性数字,没有任何一方核对它。

区别在于:errors 需要跑编译器才知道,所以「冻结 + 重测」是唯一选择;tests 是免费的 —— 闸门已经在算了,只是没拿它和台账对账。

为什么值得记一笔

台账文件自己的注释里已经写下过这个论点(#5286 毕业 packages/spec 时留的):

The number that used to sit here (272 files / 902 errors) was also stale by 23 files, which is the other argument for a measurement the gate derives.

也就是说「该导出的数字不要手写」这条结论仓库里已经得出过一次,只是没有推广到剩下 19 条。一个同时存在「手写副本」和「实时算法」的数字就是两个事实源,而这正是 #5278 那一类漂移的定义。

选项

1. 删掉 tests 字段,改由闸门实时导出。摘要行和 note 里的「隐藏了多少文件」改读 pkg.testFiles。结构上不可能再漂,零新增成本(数字本来就在算),diff 覆盖 19 条条目。推荐方向。
2. 保留字段,加一条对账:tests !== testFiles 时报错。会把「新增一个干净的测试文件」变成红 —— 对一个本该被鼓励的动作收记账费,和 [finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278 裁决里「改善不得制造记账 churn」的原则相反。
3. 保留字段,不一致时打 informational 行。不红,但一旦有人加测试文件就变成常驻噪音,而常驻噪音是闸门被忽略的起点。
4. 只定期重量。就是 [finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278 已经否决过的选项 2。

我倾向 1:这是唯一一个把漂移按构造消除而不是靠巡查的选项,而且它比现状的代码更少。

范围外未做:#5278 的派发令把文件面框在棘轮逻辑 + 台账数字更新,删字段是形状变更,留给分诊定。

[os-zhuang]

存量裁决轮（维护者 2026-08-06 委托，session_01LeEfA7CFwbJb7JJmXm2KM3）：维持持有，补两条关系记录——① 本单未被 #5278 覆盖（其派发面框定在 errors 棘轮 + 数字更新；evaluate() 至今不比对 tests 与 testFiles，删手写 tests 字段属形状变更、明确出其范围）；② 但两单同文件（check-type-check-coverage.mjs）且 #5278 在飞，现在入队必然撞车。重启条件：#5278 落地后按选项 1（删手写 tests 字段、改由闸门实时导出 pkg.testFiles，按构造消除漂移）晋级入队。

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[claude]

Findings triage (#4949 discipline): promoted — finding → pm:queue. domain:spec-tooling unchanged.

Restart condition fired

The 2026-08-06 08:06Z hold set one condition: "#5278 落地后按选项 1 … 晋级入队", because the two issues share scripts/check-type-check-coverage.mjs and #5278 was in flight.

• [finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278 is closed/completed; its change is on origin/main as 5e1ea65 — "ci(dx): DEBT/TEST_DEBT 台账数字改为每次重测的真棘轮 —— 实测 > 记录即红 ([finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278) (ci(dx): DEBT/TEST_DEBT 台账数字改为每次重测的真棘轮 —— 实测 > 记录即红 (#5278) #5827)".
• That file has had no commit since, so there is no in-flight work to serialize behind (origin/main @ ee3bde1).

Stale-premise check — the finding survives #5278 intact

Read off origin/main, not off the issue body:

• The hand-written tests: numbers are still there, 19 entries' worth (:419, :426, :450, :462, :482, :493, :514, :523, :534–:539, :541, :549–:552). [finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278 re-measured errors; it did not remove or reconcile tests.
• evaluate() still never compares them. The only reads of the derived count are :800 (pkg.excludesTests && pkg.testFiles > 0) and :820 (the "has a TEST_DEBT entry but no longer excludes its tests" branch). Neither asserts tests === testFiles. The two-sources-of-truth shape the finding describes is unchanged.
• The numbers in the body's drift table are stale in the harmless direction — [finding] DEBT ledger counts in check-type-check-coverage.mjs drift silently — @objectstack/metadata-protocol records 28, actually reports 63 #5278's PR refreshed the 12 drifted values, so today's ledger is accurate. That refresh is exactly why this is worth doing now: the mechanism is untouched, so the ledger starts drifting again with the next test file added. The finding's own words: "明天再加一个测试文件就又漂了".

Direction

Option 1 as the filer recommended and the prior grader endorsed: delete the hand-written tests field and derive it from pkg.testFiles, which testCoverage() already computes on every run (sub-second, no build). Summary line and the note prose that cite "how many files are hidden" read the derived value instead.

Rationale for pre-selecting the direction rather than sending this to the decision box: options 2–4 were all argued down in the filing and none has a live advocate. Option 2 (hard-fail on mismatch) bills a green action — adding a clean test file — which contradicts #5278's own ruling that 改善不得制造记账 churn; option 3 (informational line) manufactures standing noise, and standing noise is how a gate gets ignored; option 4 (periodic re-measure) is the option #5278 already rejected. Option 1 is the only one that removes the drift by construction and it leaves less code than the status quo.

Scope note for the dev: the shape change touches all 19 TEST_DEBT entries plus the JSDoc typedef at :781 and the three unit-test fixtures at :1209 / :1259 / :1266 that construct testDebt entries with a tests key.

Not target:v17 — internal gate ledger, no shipped surface.

本评论来自分诊座位 Routine(#5474 试点),不构成认领。

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[os-zhuang]

认领:PM 循环第 5 轮(spec-tooling 车道,座位登记 #6018;分诊座位已核 #5278 restart condition 触发并晋级)
会话:session_014wsZeReNTqiceBfLb5Pyf5
分支:claude/issue-5826-test-debt-tests-derived
Worktree:objectstack-issue-5826
域:domain:spec-tooling
文件面:scripts/check-type-check-coverage.mjs(tests 字段改由闸门实时导出)+ 其 --self-test 用例 + .changeset/*.md 或 skip 标签(按发布面实测定档)。⛔ 不碰任何包源码/tsconfig/typecheck 脚本(不做毕业)、不碰 packages/spec/scripts/**(本轮四单并行其中)。(越界即停,报告说明)

定价输入(#5278 / PR #5827 已于 03:5xZ 合入,机制已变):① errors 现已是真棘轮(每次 --re-measure 重测),本单处理的是另一个手写数字 tests;② #5827 已把 12 个漂移的 tests 更新到实测值,所以今天的差值可能是 0——这不改变本单的价值(机制未变,明天加一个测试文件就又漂),但正文的实测表已过期,⛔ 不沿用,以现状重量;③ #5827 新增了五条 Option A 记档余量(objectql/rest/lint/service-storage/mcp 的 errors 记录值高于实测),改 tests 时不得触碰那些 errors 值与其 note。

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