47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
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# T774 — product match race metering regression
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> Status: `todo`
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> Milestone: `M7` · Phase D
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> Kind: `test` · Est. change: `~190 lines`
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## Goal
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證明多 worker／重試不重複 ProductMatch 或 AI 計費，Sweep counters 與實際資料可對帳。
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## Depends on
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- T770–T773
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## Inputs
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- radar worker/sweep/repository/usage fake harness
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- `../spec.md` §4.2、§5.5、§8、驗收 #12
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## Outputs
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| 路徑 | 動作 | 說明 |
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|------|------|------|
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| `apps/backend/internal/module/radar/usecase/product_race_meter_test.go` | add | same/different product worker race、retry |
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| `apps/backend/internal/module/radar/usecase/sweep_counter_test.go` | edit/add | evaluated/merged/rejected/truncated reconciliation |
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| usage integration tests | edit | `radar.product_fit` exactly-once semantics |
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## Behavior
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- 同 `(opportunity, product)` 最多一次適配計費。
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- 不同 Product 可各計一次但仍一 Opportunity。
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- job guarded update、Redis lock value=workerID 規則不變。
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## Out of scope
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- 真 AI／Threads 網路壓測
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- 新 usage meter
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## Acceptance
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- [ ] race detector 綠，資料筆數／counter／usage records 對帳。
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```bash
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cd apps/backend && go test ./internal/module/radar/... ./internal/module/usage/... -race -count=1
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```
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