51 lines
1.5 KiB
Markdown
51 lines
1.5 KiB
Markdown
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# T745 — fit stale concurrency tests
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> Status: `done`
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> Milestone: `M4` · Phase C
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> Kind: `test` · Est. change: `~190 lines`
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## Goal
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鎖定 stale 保存、產品更新快照、純同名排除與並行 merge 的端到端 domain 行為。
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## Depends on
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- T742、T743、T744
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## Inputs
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- `../spec.md` 驗收 #2–#8、#12
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- 代表性 CandidatePost 與 Product fixtures
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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_fit_integration_test.go` | add | scorer→merge→primary cases |
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| `apps/backend/internal/module/radar/repository/product_match_race_test.go` | add | concurrent same/different product merge |
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## Behavior
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- 20 天貼文 rejected/stale 但 match reasons 完整保存。
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- Product 更新不重寫同 Opportunity 舊 match。
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- race 結果無 duplicate，人工 primary 保留。
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## Out of scope
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- HTTP 與前端
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- 真平台抓取
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## Acceptance
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- [x] 具名覆蓋 stale／snapshot／same-product／override／並行 merge；普通測試通過。
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```bash
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cd apps/backend && go test ./internal/module/radar/... -race -count=1
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```
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Implementation result (2026-08-10): added stale-candidate evidence retention,
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immutable product snapshot, and concurrent same/different-product merge tests;
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the memory repository keeps one match per product and preserves human primary
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overrides. The requested race command was attempted, but this environment has
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CGO enabled without a `gcc` compiler, so the race binary cannot be built here.
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