fix(integration): asyncio auto-mode, per-test truncation, artist images IN-subquery

tests/conftest.py

@@ -18,6 +18,8 @@ from sqlalchemy.ext.asyncio import (
 )
 from sqlalchemy.orm import sessionmaker
 
+from backend.app.models import Base
+
 
 def _async_database_url() -> str:
     user = os.environ.get("DB_USER", "fabledcurator")
@@ -73,3 +75,27 @@ def db_sync(sync_engine):
             yield session
         finally:
             session.rollback()
+
+
+@pytest.fixture(autouse=True)
+def _truncate_after_integration(request):
+    """Integration tests exercise app/celery code that commits on its own
+    connection, which the rollback fixtures above can't undo — so data
+    would leak between tests. Truncate every model table after each
+    integration-marked test. Scoped to the integration marker so the
+    DB-less fast unit job never connects here.
+    """
+    yield
+    if request.node.get_closest_marker("integration") is None:
+        return
+    tables = ", ".join(t.name for t in Base.metadata.sorted_tables)
+    if not tables:
+        return
+    eng = create_engine(_sync_database_url(), future=True)
+    try:
+        with eng.begin() as conn:
+            conn.exec_driver_sql(
+                f"TRUNCATE {tables} RESTART IDENTITY CASCADE"
+            )
+    finally:
+        eng.dispose()