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trex-core/tests/application/test_ledger_option_d.py
T
genichinandClaude Opus 4.8 2bfecd59a8 feat(ledger): dcy-018 option D cash/position write-back + 추정 현금 (BAT-023)
ledger write 응답의 portfolio-hub 권위 cash/quantity 를 스냅샷에 write-back 해
매수/매도 직후 "수량 live·현금 stale" 비대칭 제거(option D 활성화). portfolio-hub#8
(*_after 응답) 동작 중 확인으로 그간 deferred 됐던 REQ-030 을 닫음.

거버넌스: 전부 change-req (신규 REQ 없음, dcy-018 OQ-3 a).
- REQ-017: record_trade → LedgerWriteOutcome{result, cash_balance_after,
  asset_quantity_after}. 어댑터가 응답 root flat *_after 파싱(new+duplicate, 누락 None)
- REQ-019: LedgerWriter 에 SnapshotStore 주입 → new+duplicate write-back
  (best-effort, *_after 절대값이라 멱등). LedgerOutbox.pending_cash_delta()
- REQ-029: 추정 현금 오버레이(_apply_cash_estimate, cash_estimated 라벨, OQ-4 i)
  + 슬롯 오버레이 유지(OQ-1 B). 미정산 outbox delta 기반, write-back 수렴
- REQ-030: option D 활성화 → Approved→Implemented

best-effort 격리(NFR-1): write-back/추정 실패가 ledger 멱등·청산 무차단.
배치 번호: 동시 커밋된 BAT-022(slot-state, dcy-016)와 충돌해 BAT-023 으로 배정.

검증: 단위 350 passed/35 skipped, 인프라 게이트(PG+RabbitMQ) 385 passed, ruff clean.
신규 test_ledger_option_d + adapter/PG 테스트. BAT-023 release-candidate.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-08 21:50:56 +09:00

122 lines
5.1 KiB
Python

"""Option D cash/position write-back + estimate overlay tests (dcy-018, issue: cash stale).
Covers: LedgerWriter write-back to SnapshotStore on new/duplicate, skip when
*_after missing, best-effort isolation, and the snapshot handler's estimated-cash
overlay from pending outbox deltas (OQ-4).
"""
from __future__ import annotations
from datetime import datetime, timezone
from trex_core.adapters.ledger.in_memory import InMemoryLedger
from trex_core.application.ledger_outbox import (
InMemoryLedgerOutbox,
LedgerWriter,
trade_cash_delta,
)
from trex_core.application.ledger_port import LedgerTrade
from trex_core.application.messaging_handlers import _apply_cash_estimate
from trex_core.application.portfolio import PortfolioItem, SnapshotStore
UTC = timezone.utc
def _trade(execution_id="e-1", asset="PF-1", side="buy", qty=10, price=1000.0, fee=1.0):
return LedgerTrade(asset_id=asset, order_id="O-1", execution_id=execution_id,
side=side, qty=qty, price=price, fee=fee,
executed_at=datetime(2026, 6, 4, tzinfo=UTC))
def _store_with(pid="PF-1", cash=1_000_000.0, qty=0.0):
s = SnapshotStore()
s.swap([PortfolioItem(portfolio_id=pid, symbol="005930",
cash_balance=cash, asset_quantity=qty)])
return s
# --- write-back (REQ-019/030) ----------------------------------------------
def test_writeback_updates_snapshot_on_new():
store = _store_with()
outbox = InMemoryLedgerOutbox()
ledger = InMemoryLedger(cash_after=300_000.0, quantity_after=10.0)
writer = LedgerWriter(outbox, ledger, snapshot_store=store)
outbox.enqueue(_trade())
writer.run_once()
a = store.get("PF-1").item
assert a.cash_balance == 300_000.0 and a.asset_quantity == 10.0
def test_writeback_applies_on_duplicate_too():
store = _store_with(cash=1_000_000.0)
outbox = InMemoryLedgerOutbox()
# execution already recorded once → second write is duplicate, *_after still authoritative
ledger = InMemoryLedger(cash_after=300_000.0, quantity_after=10.0)
ledger.record_trade(_trade(execution_id="dup")) # pre-record → next is duplicate
writer = LedgerWriter(outbox, ledger, snapshot_store=store)
outbox.enqueue(_trade(execution_id="dup"))
writer.run_once()
assert store.get("PF-1").item.cash_balance == 300_000.0 # duplicate still wrote back
def test_writeback_skipped_when_after_missing():
store = _store_with(cash=1_000_000.0)
outbox = InMemoryLedgerOutbox()
ledger = InMemoryLedger() # no cash_after/quantity_after → None
writer = LedgerWriter(outbox, ledger, snapshot_store=store)
outbox.enqueue(_trade())
writer.run_once()
assert store.get("PF-1").item.cash_balance == 1_000_000.0 # unchanged
def test_writeback_best_effort_does_not_block_completion():
class _BoomStore:
def update_cash_position(self, *a, **k):
raise RuntimeError("boom")
outbox = InMemoryLedgerOutbox()
ledger = InMemoryLedger(cash_after=1.0, quantity_after=1.0)
writer = LedgerWriter(outbox, ledger, snapshot_store=_BoomStore())
outbox.enqueue(_trade())
stats = writer.run_once()
assert stats.completed == 1 # ledger still completed despite write-back error
def test_no_writeback_without_store():
outbox = InMemoryLedgerOutbox()
ledger = InMemoryLedger(cash_after=1.0, quantity_after=1.0)
writer = LedgerWriter(outbox, ledger) # no snapshot_store
outbox.enqueue(_trade())
assert writer.run_once().completed == 1 # no crash
# --- estimate overlay (REQ-029 / OQ-4) -------------------------------------
def test_pending_cash_delta_sums_by_asset():
outbox = InMemoryLedgerOutbox()
outbox.enqueue(_trade(execution_id="b", side="buy", qty=10, price=1000.0, fee=1.0))
deltas = outbox.pending_cash_delta()
assert deltas["PF-1"] == trade_cash_delta(_trade(side="buy", qty=10, price=1000.0, fee=1.0))
assert deltas["PF-1"] == -(10 * 1000.0 + 1.0) # buy: cash down
def test_apply_cash_estimate_overlays_pending_delta():
outbox = InMemoryLedgerOutbox()
outbox.enqueue(_trade(execution_id="b", side="buy", qty=10, price=1000.0, fee=1.0))
payload = {"assets": [{"asset_id": "PF-1", "symbol": "005930",
"cash_balance": 1_000_000.0, "asset_quantity": 0.0}]}
_apply_cash_estimate(payload, outbox)
a = payload["assets"][0]
assert a["cash_estimated"] is True
assert a["cash_balance"] == 1_000_000.0 - (10 * 1000.0 + 1.0) # estimated cash
def test_estimate_clears_after_writeback():
"""Once the ledger write completes (no longer pending), the estimate is gone."""
store = _store_with(cash=1_000_000.0)
outbox = InMemoryLedgerOutbox()
ledger = InMemoryLedger(cash_after=989_999.0, quantity_after=10.0)
writer = LedgerWriter(outbox, ledger, snapshot_store=store)
outbox.enqueue(_trade(side="buy", qty=10, price=1000.0, fee=1.0))
assert outbox.pending_cash_delta() # estimate present while pending
writer.run_once() # completes → write-back authoritative
assert outbox.pending_cash_delta() == {} # no longer pending → no estimate
assert store.get("PF-1").item.cash_balance == 989_999.0