# Checkpoint 006 — Tests

**Ngày:** 2026-04-24  
**Trạng thái:** ✅ Hoàn thành  
**Verify:** `go test ./... -v` — 10/10 PASS

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## Test matrix coverage

| # | Scenario | Test | Status |
|---|----------|------|--------|
| 1 | Callback hợp lệ → CALLBACK_DONE | `TestCallback_ValidToken_UpdatesTask` | ✅ PASS |
| 2 | OpenClaw fail 2 lần, lần 3 OK → attempt=3 | `TestDispatch_RetryThenSuccess` | ✅ PASS |
| 2' | OpenClaw fail hết → FAILED + last_error | `TestDispatch_AllRetriesFailed` | ✅ PASS |
| 3 | SMTP fail hết retry → FAILED | *(cần SMTP mock — chưa test)* | ⏳ |
| 4 | Callback sai token → 401, state không đổi | `TestCallback_WrongToken_Returns401` | ✅ PASS |
| 5 | Duplicate message_id → không tạo task mới | `TestDuplicateMessageID` | ✅ PASS |
| 6 | Anti-loop / whitelist → IGNORED | *(logic test trong IMAP — chưa test)* | ⏳ |

**Bonus tests:**
- `TestCallback_AlreadyCompleted_Idempotent` — idempotent callback ✅
- `TestFindByMessageID_NotFound` — empty result handling ✅
- `TestThreadHistory` — chỉ trả COMPLETED tasks ✅
- `TestHealthz`, `TestReadyz` — health endpoints ✅

## Kỹ thuật test

- **Test database:** `database.NewTestDB(t)` tạo SQLite tạm trong `t.TempDir()`
- **HTTP mock:** `httptest.NewServer` cho OpenClaw API
- **HTTP test:** `httptest.NewServer(router)` cho callback handler
- **Retry timing:** Tests thật sự chờ backoff (1s+5s = ~6s mỗi retry test)

## Files mới

- `internal/database/testhelper.go` — TestDB helper
- `internal/database/repository_test.go` — repository tests
- `internal/api/router_test.go` — callback + health tests
- `internal/ai_client/client_test.go` — dispatch retry tests

## Chưa test (cần mock phức tạp hơn)

- SMTP retry logic (#3) — cần mock `net/smtp.SendMail`
- IMAP anti-loop/whitelist (#6) — cần refactor `processMessage` để testable