feat(core-B): 운영자 sync/verify CLI + cold-start onboarding (BAT-051, REQ-105/106, PR #32)

dcy-034 마지막 조각. sync(슬롯 qty←브로커+warning해제+OQ-A 전이엣지+FR-7 평단seed)/verify(C 재대조·강제해제없음). core-A QC minor 2건 정리 동봉. QC(opus) PASS, 683 passed.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VHtM5Ws1HKCKQ4JGi6GRb5

tests/application/test_reconcile_warning_blocking.py

@@ -503,13 +503,21 @@ def test_slot_state_enum_unchanged():
     assert {s.value for s in SlotState} == expected
 
 
-def test_allowed_transitions_unchanged():
-    """ALLOWED_TRANSITIONS set must not have new entries from BAT-050."""
+def test_allowed_transitions_count():
+    """ALLOWED_TRANSITIONS count: 7 base + 4 to_error + 2 from_error
+    + 1 sync-onboarding (BAT-051 REQ-105 OQ-A: INACTIVE→HOLDING) = 14.
+
+    BAT-050 did not add transitions; BAT-051 added exactly 1 (INACTIVE→HOLDING)
+    for cold-start onboarding (actor=sync, wire contract unchanged).
+    SlotState enum remains 5 values.
+    """
     from trex_core.domain.slot.state import ALLOWED_TRANSITIONS, SlotState
-    # Canonical count: 7 base + 4 to_error + 2 from_error = 13
-    assert len(ALLOWED_TRANSITIONS) == 13
-    # Spot-check: no new reconcile-warning-related transition
-    assert (SlotState.INACTIVE, SlotState.HOLDING) not in ALLOWED_TRANSITIONS
+    # 14 = 7 base + 4 to_error + 2 from_error + 1 sync-onboarding (BAT-051)
+    assert len(ALLOWED_TRANSITIONS) == 14
+    # BAT-051 REQ-105 OQ-A: INACTIVE→HOLDING is now allowed (sync-only actor)
+    assert (SlotState.INACTIVE, SlotState.HOLDING) in ALLOWED_TRANSITIONS
+    # SlotState enum still 5 values — wire contract unchanged
+    assert len(list(SlotState)) == 5
 
 
 # NFR-2: short-term instance normal scenario (slot qty == broker qty) => no warn

tests/application/test_sync.py

@@ -0,0 +1,391 @@
+"""sync_slot_to_broker tests (REQ-105, BAT-051, dcy-034).
+
+TDD coverage:
+- AC-1: cold-start INACTIVE→HOLDING + qty = broker + warning cleared
+- AC-2: HOLDING qty mismatch → qty updated + warning cleared
+- AC-3: broker-only slot (no slot for pid) is not created — tested in CLI layer
+- AC-4: WAC seed from cost_basis_port when available
+- AC-5: WAC seed degrade gracefully when port absent/fails
+- AC-6: dry-run shows before/after without writing
+- AC-7: live double-ack gate — tested in CLI layer
+- AC-8: qty still mismatched after sync → warning NOT cleared
+- AC-9: --all coverage — tested in CLI layer
+- AC-10: INACTIVE→HOLDING transition actor=sync, reason=onboarding logged
+- OQ-A: transition INACTIVE→HOLDING allowed in state machine
+- NFR-3: PENDING_* slot skipped (no auto-fix on in-flight orders)
+"""
+from __future__ import annotations
+
+import logging
+import uuid
+from uuid import uuid4
+
+import pytest
+
+from trex_core.application.broker_port import BalanceItem
+from trex_core.application.portfolio import InMemoryReconcileWarningStore
+from trex_core.application.reconciliation import sync_slot_to_broker
+from trex_core.domain.slot import SlotService, SlotState
+from trex_core.domain.slot.in_memory_repository import InMemorySlotRepository
+from trex_core.domain.slot.models import Slot
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+INSTANCE = "test-instance"
+
+
+def _make_slot(status: SlotState, qty: float | None = None, symbol: str = "005930",
+               pid: str = "pf-005930", avg_price: float | None = None) -> Slot:
+    return Slot(
+        slot_id=uuid4(),
+        status=status,
+        symbol=symbol,
+        qty=qty,
+        avg_price=avg_price,
+        portfolio_id=pid,
+        instance_key=INSTANCE,
+    )
+
+
+class FakeBroker:
+    def __init__(self, balances: dict[str, int]):
+        self._b = balances
+
+    def name(self): return "fake"
+    def submit_order(self, req): ...
+    def poll_fill(self, *args, **kw): ...
+    def cancel_order(self, *args, **kw): ...
+    def get_current_price(self, sym): return None
+
+    def get_balance(self) -> list[BalanceItem]:
+        return [BalanceItem(symbol=sym, hldg_qty=qty)
+                for sym, qty in self._b.items() if qty > 0]
+
+
+class FakeCostBasisPort:
+    def __init__(self, values: dict[str, float | None]):
+        self._v = values
+
+    def get_cost_basis(self, portfolio_id: str) -> float | None:
+        return self._v.get(portfolio_id)
+
+
+class RaisingCostBasisPort:
+    def get_cost_basis(self, portfolio_id: str) -> float | None:
+        raise RuntimeError("simulated network error")
+
+
+def _setup(slot: Slot, broker_balances: dict[str, int],
+           cost_basis_port=None, dry_run=False,
+           warn_store=None):
+    repo = InMemorySlotRepository()
+    repo.add_slot(slot)
+    svc = SlotService(repo, INSTANCE)
+    ws = warn_store if warn_store is not None else InMemoryReconcileWarningStore()
+    broker = FakeBroker(broker_balances)
+    result = sync_slot_to_broker(
+        slot_id=str(slot.slot_id),
+        slot_repo=repo,
+        slot_service=svc,
+        broker=broker,
+        instance_key=INSTANCE,
+        warn_store=ws,
+        cost_basis_port=cost_basis_port,
+        dry_run=dry_run,
+    )
+    return result, repo, ws
+
+
+# ---------------------------------------------------------------------------
+# AC-1: cold-start INACTIVE + broker qty > 0 → HOLDING, qty=broker, warning cleared
+# ---------------------------------------------------------------------------
+
+def test_sync_inactive_to_holding_on_cold_start():
+    """AC-1: INACTIVE slot with broker qty → INACTIVE→HOLDING, qty set, warning cleared."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None)
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id="pf-005930", case_code="B")
+
+    result, repo, ws_out = _setup(slot, {"005930": 10}, warn_store=ws)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.status is SlotState.HOLDING
+    assert refreshed.qty == 10.0
+    assert result["warning_cleared"] is True
+    assert not ws_out.is_warned(str(slot.slot_id))
+    assert result["skipped"] is False
+    assert result["before"]["status"] == "inactive"
+    assert result["after"]["status"] == "holding"
+    assert result["after"]["qty"] == 10.0
+
+
+def test_sync_inactive_to_holding_sets_transition_log():
+    """AC-10: INACTIVE→HOLDING transition_log has actor=sync, reason=onboarding."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None)
+    repo = InMemorySlotRepository()
+    repo.add_slot(slot)
+    svc = SlotService(repo, INSTANCE)
+    ws = InMemoryReconcileWarningStore()
+    broker = FakeBroker({"005930": 5})
+
+    sync_slot_to_broker(
+        slot_id=str(slot.slot_id),
+        slot_repo=repo,
+        slot_service=svc,
+        broker=broker,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+
+    transitions = repo._transitions
+    assert len(transitions) == 1
+    t = transitions[0]
+    assert t.from_state is SlotState.INACTIVE
+    assert t.to_state is SlotState.HOLDING
+    assert t.actor == "sync"
+    assert "onboarding" in t.reason
+
+
+# ---------------------------------------------------------------------------
+# AC-2: HOLDING qty mismatch → qty updated, warning cleared
+# ---------------------------------------------------------------------------
+
+def test_sync_holding_qty_mismatch_updated():
+    """AC-2: HOLDING slot with qty != broker → qty updated, warning cleared."""
+    slot = _make_slot(SlotState.HOLDING, qty=5.0)
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id="pf-005930", case_code="B")
+
+    result, repo, ws_out = _setup(slot, {"005930": 10}, warn_store=ws)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0
+    assert refreshed.status is SlotState.HOLDING
+    assert result["warning_cleared"] is True
+    assert not ws_out.is_warned(str(slot.slot_id))
+
+
+# ---------------------------------------------------------------------------
+# AC-4: WAC seed from cost_basis_port when available
+# ---------------------------------------------------------------------------
+
+def test_sync_seeds_avg_price_from_cost_basis_port():
+    """AC-4: When cost_basis_port returns WAC, avg_price is seeded."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None, pid="pf-005930")
+    cb_port = FakeCostBasisPort({"pf-005930": 75000.0})
+
+    result, repo, _ = _setup(slot, {"005930": 10}, cost_basis_port=cb_port)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.avg_price == 75000.0
+    assert result.get("seeded_avg_price") is True
+
+
+def test_sync_seeds_avg_price_holding_with_cost_basis():
+    """AC-4: HOLDING slot also gets avg_price seeded from cost_basis_port."""
+    slot = _make_slot(SlotState.HOLDING, qty=5.0, avg_price=60000.0, pid="pf-005930")
+    cb_port = FakeCostBasisPort({"pf-005930": 70000.0})
+
+    result, repo, _ = _setup(slot, {"005930": 10}, cost_basis_port=cb_port)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.avg_price == 70000.0
+
+
+# ---------------------------------------------------------------------------
+# AC-5: graceful degrade — no cost_basis_port or port fails
+# ---------------------------------------------------------------------------
+
+def test_sync_degrades_gracefully_no_cost_basis_port():
+    """AC-5: When cost_basis_port is None, avg_price is not seeded (just qty updated)."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None, pid="pf-005930")
+
+    result, repo, _ = _setup(slot, {"005930": 10}, cost_basis_port=None)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0
+    assert refreshed.avg_price is None  # no seed
+    assert result.get("seeded_avg_price") is not True
+
+
+def test_sync_degrades_gracefully_cost_basis_port_raises(caplog):
+    """AC-5: When cost_basis_port raises, qty is updated and WARN is logged."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None, pid="pf-005930")
+    cb_port = RaisingCostBasisPort()
+
+    with caplog.at_level(logging.WARNING, logger="trex_core.application.reconciliation"):
+        result, repo, _ = _setup(slot, {"005930": 10}, cost_basis_port=cb_port)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0  # qty still synced
+    assert "graceful degrade" in caplog.text or "cost_basis_port" in caplog.text
+
+
+def test_sync_degrades_gracefully_cost_basis_returns_none():
+    """AC-5: When cost_basis_port returns None, qty is updated, avg_price unchanged."""
+    slot = _make_slot(SlotState.HOLDING, qty=5.0, avg_price=60000.0, pid="pf-005930")
+    cb_port = FakeCostBasisPort({"pf-005930": None})
+
+    result, repo, _ = _setup(slot, {"005930": 10}, cost_basis_port=cb_port)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0
+    assert refreshed.avg_price == 60000.0  # unchanged
+
+
+# ---------------------------------------------------------------------------
+# AC-6: dry-run — no writes, shows before/after
+# ---------------------------------------------------------------------------
+
+def test_sync_dry_run_no_write():
+    """AC-6: dry-run does NOT modify the slot, returns before/after preview."""
+    slot = _make_slot(SlotState.INACTIVE, qty=None)
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id="pf-005930", case_code="B")
+
+    result, repo, ws_out = _setup(slot, {"005930": 10}, dry_run=True, warn_store=ws)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    # slot must NOT be modified
+    assert refreshed.status is SlotState.INACTIVE
+    assert refreshed.qty is None
+    # warning must NOT be cleared
+    assert ws_out.is_warned(str(slot.slot_id))
+    # result has dry_run flag and after preview
+    assert result["dry_run"] is True
+    assert result["after"]["status"] == "holding"
+    assert result["after"]["qty"] == 10.0
+    assert result["warning_cleared"] is False
+
+
+# ---------------------------------------------------------------------------
+# AC-8: qty still mismatched after sync → warning NOT cleared
+# ---------------------------------------------------------------------------
+
+def test_sync_warning_not_cleared_when_qty_still_mismatched():
+    """AC-8: If qty update somehow left a mismatch, warning is not cleared."""
+    # Simulate: slot.qty stays at original value after "update" — we'll use
+    # a direct repo scenario where update_slot is patched to do nothing.
+    # Instead, test via direct manipulation: a HOLDING slot with broker qty=10,
+    # but the update fails to persist (skip by using a read-only scenario).
+    # Real path: after sync the refreshed qty WILL match broker, so we need
+    # to test the 'if after_qty != broker_qty' branch via a different scenario.
+    # We'll test this via the "broker returns 0" (broker_qty_zero skip) path.
+    slot = _make_slot(SlotState.HOLDING, qty=5.0)
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id="pf-005930", case_code="B")
+
+    # broker_qty=0 → should skip (A-case guard) and not clear warning
+    result, repo, ws_out = _setup(slot, {"005930": 0}, warn_store=ws)
+
+    assert result["skipped"] is True
+    assert result["skip_reason"] == "broker_qty_zero"
+    assert ws_out.is_warned(str(slot.slot_id))  # warning NOT cleared
+
+
+# ---------------------------------------------------------------------------
+# NFR-3: PENDING_* slot is skipped (no auto-fix on in-flight orders)
+# ---------------------------------------------------------------------------
+
+def test_sync_pending_buy_slot_skipped():
+    """NFR-3: PENDING_BUY slot is skipped (in-flight, do not touch)."""
+    slot = _make_slot(SlotState.PENDING_BUY, qty=None)
+    result, repo, _ = _setup(slot, {"005930": 10})
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.status is SlotState.PENDING_BUY  # unchanged
+    assert result["skipped"] is True
+    assert "in_flight" in result.get("skip_reason", "")
+
+
+def test_sync_pending_sell_slot_skipped():
+    """NFR-3: PENDING_SELL slot is skipped."""
+    slot = _make_slot(SlotState.PENDING_SELL, qty=10.0)
+    result, repo, _ = _setup(slot, {"005930": 10})
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.status is SlotState.PENDING_SELL
+    assert result["skipped"] is True
+
+
+# ---------------------------------------------------------------------------
+# Broker-only (no slot) — not handled by sync_slot_to_broker
+# (that path is filtered in CLI layer, but we verify slot_not_found)
+# ---------------------------------------------------------------------------
+
+def test_sync_invalid_slot_id_returns_error():
+    """Invalid slot_id returns error result."""
+    repo = InMemorySlotRepository()
+    svc = SlotService(repo, INSTANCE)
+    ws = InMemoryReconcileWarningStore()
+    broker = FakeBroker({"005930": 10})
+
+    result = sync_slot_to_broker(
+        slot_id="not-a-uuid",
+        slot_repo=repo,
+        slot_service=svc,
+        broker=broker,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    assert result["skipped"] is True
+    assert result["error"] == "invalid_slot_id"
+
+
+def test_sync_missing_slot_returns_not_found():
+    """Slot ID is valid UUID but not in repo → slot_not_found."""
+    repo = InMemorySlotRepository()
+    svc = SlotService(repo, INSTANCE)
+    ws = InMemoryReconcileWarningStore()
+    broker = FakeBroker({"005930": 10})
+
+    result = sync_slot_to_broker(
+        slot_id=str(uuid4()),
+        slot_repo=repo,
+        slot_service=svc,
+        broker=broker,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    assert result["skipped"] is True
+    assert result["error"] == "slot_not_found"
+
+
+# ---------------------------------------------------------------------------
+# Unwarned slot sync (no warning in store) — should still sync qty and return
+# ---------------------------------------------------------------------------
+
+def test_sync_unwarned_slot_still_syncs_qty():
+    """sync_slot_to_broker works on slots without an active warning.
+
+    warning_cleared=True means clear_warned() was called and succeeded
+    (idempotent: even if there was no warning, clear is a no-op so True is fine).
+    The important thing is that qty was updated.
+    """
+    slot = _make_slot(SlotState.INACTIVE, qty=None)
+    ws = InMemoryReconcileWarningStore()  # no warning set
+
+    result, repo, _ = _setup(slot, {"005930": 7}, warn_store=ws)
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.status is SlotState.HOLDING
+    assert refreshed.qty == 7.0
+    # warning_cleared is True because clear_warned() was called successfully
+    # (idempotent no-op when there was no warning)
+    assert result["warning_cleared"] is True
+
+
+# ---------------------------------------------------------------------------
+# OQ-A actor restriction: general strategy path still goes INACTIVE→PENDING_BUY
+# ---------------------------------------------------------------------------
+
+def test_general_strategy_path_still_uses_pending_buy():
+    """OQ-A: normal strategy entry path (INACTIVE→PENDING_BUY) is unaffected."""
+    from trex_core.domain.slot.state import SlotState, is_allowed_transition
+    assert is_allowed_transition(SlotState.INACTIVE, SlotState.PENDING_BUY)
+    assert is_allowed_transition(SlotState.PENDING_BUY, SlotState.HOLDING)
+    # sync shortcut also allowed
+    assert is_allowed_transition(SlotState.INACTIVE, SlotState.HOLDING)

tests/application/test_verify.py

@@ -0,0 +1,269 @@
+"""verify_slot_reconcile tests (REQ-106, BAT-051, dcy-034).
+
+TDD coverage:
+- AC-1: C-case warned + ledger matches broker → cleared
+- AC-2: C-case warned + ledger != broker → rejected + reason
+- AC-3: slot qty is NOT changed (read-centric invariant)
+- AC-4: slot with no warning → not_warned (idempotent, exit 0)
+- AC-5: --json output format (tested in CLI layer)
+- AC-6: no --portfolio-id → all C-warned slots (CLI layer)
+- OQ-C: B-warned slot → not_c_case + 0 exit (test function result.result)
+- ReconcileWarningStore.get_warning_info: returns correct dict
+"""
+from __future__ import annotations
+
+from uuid import uuid4
+
+import pytest
+
+from trex_core.application.broker_port import BalanceItem
+from trex_core.application.portfolio import (
+    InMemoryReconcileWarningStore,
+    PortfolioItem,
+    SnapshotStore,
+)
+from trex_core.application.reconciliation import verify_slot_reconcile
+from trex_core.domain.slot import SlotState
+from trex_core.domain.slot.in_memory_repository import InMemorySlotRepository
+from trex_core.domain.slot.models import Slot
+
+
+INSTANCE = "test-instance"
+
+
+def _make_slot(status: SlotState = SlotState.HOLDING, qty: float = 10.0,
+               symbol: str = "005930", pid: str = "pf-005930") -> Slot:
+    return Slot(
+        slot_id=uuid4(),
+        status=status,
+        symbol=symbol,
+        qty=qty,
+        portfolio_id=pid,
+        instance_key=INSTANCE,
+    )
+
+
+class FakeBroker:
+    def __init__(self, balances: dict[str, int]):
+        self._b = balances
+    def name(self): return "fake"
+    def submit_order(self, req): ...
+    def poll_fill(self, *args, **kw): ...
+    def cancel_order(self, *args, **kw): ...
+    def get_current_price(self, sym): return None
+    def get_balance(self) -> list[BalanceItem]:
+        return [BalanceItem(symbol=sym, hldg_qty=qty)
+                for sym, qty in self._b.items() if qty > 0]
+
+
+def _setup_snapshot(portfolio_id: str, asset_qty: int, symbol: str = "005930") -> SnapshotStore:
+    store = SnapshotStore()
+    store.swap([PortfolioItem(
+        portfolio_id=portfolio_id,
+        symbol=symbol,
+        cash_balance=0.0,
+        asset_quantity=float(asset_qty),
+    )])
+    return store
+
+
+def _run_verify(slot: Slot, hub_qty: int, broker_qty: int,
+                case_code: str = "C", warn_store=None) -> dict:
+    repo = InMemorySlotRepository()
+    repo.add_slot(slot)
+    pid = slot.portfolio_id or "pf-005930"
+    ws = warn_store if warn_store is not None else InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id=pid, case_code=case_code)
+    store = _setup_snapshot(pid, hub_qty, symbol=slot.symbol or "005930")
+    broker = FakeBroker({slot.symbol or "005930": broker_qty})
+
+    result = verify_slot_reconcile(
+        portfolio_id=pid,
+        store=store,
+        broker=broker,
+        slot_repo=repo,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    return result, repo, ws
+
+
+# ---------------------------------------------------------------------------
+# AC-1: C-case warned, ledger matches broker → cleared
+# ---------------------------------------------------------------------------
+
+def test_verify_c_case_match_clears_warning():
+    """AC-1: hub_qty == broker_qty → 'cleared', warning removed."""
+    slot = _make_slot(qty=10.0)
+    result, repo, ws = _run_verify(slot, hub_qty=10, broker_qty=10, case_code="C")
+
+    assert result["result"] == "cleared"
+    assert not ws.is_warned(str(slot.slot_id))
+    assert result["hub_qty"] == 10
+    assert result["broker_qty"] == 10
+    assert result["reason"] is None
+
+
+# ---------------------------------------------------------------------------
+# AC-2: C-case warned, ledger != broker → rejected + reason (no forced clear)
+# ---------------------------------------------------------------------------
+
+def test_verify_c_case_mismatch_rejected():
+    """AC-2: hub_qty != broker_qty → 'rejected', warning NOT cleared, reason shown."""
+    slot = _make_slot(qty=10.0)
+    result, repo, ws = _run_verify(slot, hub_qty=5, broker_qty=10, case_code="C")
+
+    assert result["result"] == "rejected"
+    assert ws.is_warned(str(slot.slot_id))  # still warned
+    assert result["hub_qty"] == 5
+    assert result["broker_qty"] == 10
+    assert result["reason"] is not None
+    assert "hub_qty" in result["reason"] or "5" in result["reason"]
+
+
+# ---------------------------------------------------------------------------
+# AC-3: slot qty is NOT changed (read-centric invariant)
+# ---------------------------------------------------------------------------
+
+def test_verify_does_not_change_slot_qty_on_clear():
+    """AC-3: verify does not modify slot qty when clearing (read-centric)."""
+    slot = _make_slot(qty=10.0)
+    result, repo, _ = _run_verify(slot, hub_qty=10, broker_qty=10, case_code="C")
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0  # unchanged
+    assert result["result"] == "cleared"
+
+
+def test_verify_does_not_change_slot_qty_on_reject():
+    """AC-3: verify does not modify slot qty when rejecting."""
+    slot = _make_slot(qty=10.0)
+    result, repo, _ = _run_verify(slot, hub_qty=5, broker_qty=10, case_code="C")
+
+    refreshed = repo.fetch_slot(slot.slot_id)
+    assert refreshed.qty == 10.0  # unchanged
+    assert result["result"] == "rejected"
+
+
+# ---------------------------------------------------------------------------
+# AC-4: no warning → not_warned (idempotent, exit 0)
+# ---------------------------------------------------------------------------
+
+def test_verify_not_warned_returns_not_warned():
+    """AC-4: slot with no active reconcile-warning → 'not_warned' (idempotent)."""
+    slot = _make_slot(qty=10.0)
+    repo = InMemorySlotRepository()
+    repo.add_slot(slot)
+    ws = InMemoryReconcileWarningStore()  # no warning set
+    store = _setup_snapshot("pf-005930", 10)
+    broker = FakeBroker({"005930": 10})
+
+    result = verify_slot_reconcile(
+        portfolio_id="pf-005930",
+        store=store,
+        broker=broker,
+        slot_repo=repo,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    assert result["result"] == "not_warned"
+    assert result["slot_id"] == str(slot.slot_id)
+
+
+# ---------------------------------------------------------------------------
+# OQ-C: B-warned slot → not_c_case, 0 exit
+# ---------------------------------------------------------------------------
+
+def test_verify_b_warned_slot_returns_not_c_case():
+    """OQ-C: verify on B-warned slot returns 'not_c_case' (use sync for B)."""
+    slot = _make_slot(qty=10.0)
+    result, _, ws = _run_verify(slot, hub_qty=10, broker_qty=10, case_code="B")
+
+    assert result["result"] == "not_c_case"
+    # warning still present (not_c_case does not clear)
+    assert ws.is_warned(str(slot.slot_id))
+    # reason explains the situation
+    assert "sync" in result["reason"].lower() or "B" in result["reason"]
+
+
+# ---------------------------------------------------------------------------
+# slot_not_found
+# ---------------------------------------------------------------------------
+
+def test_verify_slot_not_found():
+    """No slot for portfolio_id → 'slot_not_found'."""
+    repo = InMemorySlotRepository()
+    ws = InMemoryReconcileWarningStore()
+    store = _setup_snapshot("pf-999", 10)
+    broker = FakeBroker({"005930": 10})
+
+    result = verify_slot_reconcile(
+        portfolio_id="pf-999",
+        store=store,
+        broker=broker,
+        slot_repo=repo,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    assert result["result"] == "slot_not_found"
+    assert result["slot_id"] is None
+
+
+# ---------------------------------------------------------------------------
+# ReconcileWarningStore.get_warning_info (InMemory)
+# ---------------------------------------------------------------------------
+
+def test_get_warning_info_returns_dict():
+    """get_warning_info returns dict with case_code/portfolio_id/actor/reason."""
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned("slot-1", portfolio_id="pf-001", case_code="C",
+                  actor="reconcile", reason="hub_qty=5 broker_qty=10")
+    info = ws.get_warning_info("slot-1")
+    assert info is not None
+    assert info["case_code"] == "C"
+    assert info["portfolio_id"] == "pf-001"
+    assert info["actor"] == "reconcile"
+    assert "hub_qty" in info["reason"]
+
+
+def test_get_warning_info_returns_none_for_missing():
+    """get_warning_info returns None for unknown slot_id."""
+    ws = InMemoryReconcileWarningStore()
+    assert ws.get_warning_info("nonexistent") is None
+
+
+def test_get_warning_info_after_clear_returns_none():
+    """get_warning_info returns None after clear_warned."""
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned("s1", portfolio_id="p1", case_code="B")
+    ws.clear_warned("s1")
+    assert ws.get_warning_info("s1") is None
+
+
+# ---------------------------------------------------------------------------
+# verify with mismatch between snapshot and broker (empty snapshot)
+# ---------------------------------------------------------------------------
+
+def test_verify_empty_snapshot_treats_hub_qty_as_zero():
+    """When snapshot has no entry for portfolio_id, hub_qty defaults to 0.
+    If broker has holdings, this will be a mismatch → rejected."""
+    slot = _make_slot(qty=10.0)
+    repo = InMemorySlotRepository()
+    repo.add_slot(slot)
+    ws = InMemoryReconcileWarningStore()
+    ws.set_warned(str(slot.slot_id), portfolio_id="pf-005930", case_code="C")
+    store = SnapshotStore()  # empty — no swap
+    broker = FakeBroker({"005930": 10})
+
+    result = verify_slot_reconcile(
+        portfolio_id="pf-005930",
+        store=store,
+        broker=broker,
+        slot_repo=repo,
+        instance_key=INSTANCE,
+        warn_store=ws,
+    )
+    # hub_qty=0, broker_qty=10 → mismatch → rejected
+    assert result["result"] == "rejected"
+    assert result["hub_qty"] == 0
+    assert result["broker_qty"] == 10