diff --git a/tradein-mvp/backend/tests/test_backfill_wave2.py b/tradein-mvp/backend/tests/test_backfill_wave2.py
index e08ac26d..63c12f1c 100644
--- a/tradein-mvp/backend/tests/test_backfill_wave2.py
+++ b/tradein-mvp/backend/tests/test_backfill_wave2.py
@@ -258,9 +258,18 @@ async def test_cian_price_history_saves_changes():
         patch("app.services.cian_price_history.save_detail_enrichment") as mock_save,
         patch("app.services.cian_price_history.get_scraper_delay", return_value=0.0),
     ):
+        # Call 1: SELECT listings → .mappings().all()
+        mock_listings_result = MagicMock()
         mock_mappings = MagicMock()
         mock_mappings.all.return_value = rows
-        mock_db.execute.return_value.mappings.return_value = mock_mappings
+        mock_listings_result.mappings.return_value = mock_mappings
+        # Call 2: SELECT COUNT(*) before save → scalar_one() == 0
+        mock_before_result = MagicMock()
+        mock_before_result.scalar_one.return_value = 0
+        # Call 3: SELECT COUNT(*) after save → scalar_one() == 2 (2 rows inserted)
+        mock_after_result = MagicMock()
+        mock_after_result.scalar_one.return_value = 2
+        mock_db.execute.side_effect = [mock_listings_result, mock_before_result, mock_after_result]
 
         result = await backfill_cian_price_history(mock_db, batch_size=10)
 
diff --git a/tradein-mvp/backend/tests/test_matching.py b/tradein-mvp/backend/tests/test_matching.py
index ae527f0c..d3d5e322 100644
--- a/tradein-mvp/backend/tests/test_matching.py
+++ b/tradein-mvp/backend/tests/test_matching.py
@@ -151,6 +151,7 @@ def test_match_house_tier0_cadastr():
         [
             None,  # pg_advisory_xact_lock
             {"id": 42},  # cadastral match
+            None,  # _insert_alias (added by #1543: register fp/addr alias after cadastr_exact)
             None,  # _upsert_house_source (INSERT ... ON CONFLICT)
         ]
     )
diff --git a/tradein-mvp/backend/tests/test_sber_index.py b/tradein-mvp/backend/tests/test_sber_index.py
index 936c6918..728868f5 100644
--- a/tradein-mvp/backend/tests/test_sber_index.py
+++ b/tradein-mvp/backend/tests/test_sber_index.py
@@ -312,6 +312,9 @@ class _ExecuteCapture:
     def commit(self) -> None:
         pass
 
+    def rollback(self) -> None:
+        pass
+
 
 @pytest.mark.asyncio
 async def test_pull_sber_indices_upsert_on_conflict_idempotent() -> None: