fix: merge

backend/tests/test_rules.py

@@ -8,7 +8,11 @@ import pytest
 from app.models.transaction import Direction
 from app.models.evidence_image import SourceApp
 from app.rules.dedup_rules import is_duplicate_pair
-from app.rules.transit_rules import is_self_transfer, is_fee_tolerant_transit_pair
+from app.rules.transit_rules import (
+    is_self_transfer,
+    is_fee_tolerant_transit_pair,
+    mark_transit_transactions,
+)
 from app.rules.assessment_rules import classify_transaction
 
 
@@ -105,6 +109,36 @@ class TestTransitRules:
         )
         assert not is_fee_tolerant_transit_pair(out_tx, in_tx)
 
+    def test_wechat_recharge_in_then_out_marked_transit(self):
+        in_tx = _make_tx(
+            trade_time=datetime(2026, 3, 17, 21, 46, 0, tzinfo=timezone.utc),
+            amount=50,
+            direction=Direction.in_,
+            counterparty_name="零钱充值-来自工商银行(3893)",
+            counterparty_account="",
+            self_account_tail_no="3893",
+            order_no="",
+            remark="",
+            confidence=0.95,
+            is_transit=False,
+        )
+        out_tx = _make_tx(
+            trade_time=datetime(2026, 3, 17, 21, 46, 59, tzinfo=timezone.utc),
+            amount=50,
+            direction=Direction.out,
+            counterparty_name="童年",
+            counterparty_account="1154****0928",
+            self_account_tail_no="3893",
+            order_no="",
+            remark="充值",
+            confidence=0.98,
+            is_transit=False,
+        )
+        txs = [in_tx, out_tx]
+        mark_transit_transactions(txs, known_self_accounts=[])
+        assert in_tx.is_transit
+        assert out_tx.is_transit
+
 
 class TestAssessmentRules:
     def test_transit_classified_as_low(self):