fix: Migration e7f1a9c3b214 auch auf SQLite lauffähig (A14-T1 Fixrunde)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

finance/tests/test_migration_sqlite.py

@@ -0,0 +1,35 @@
+"""Alembic-Revision e7f1a9c3b214 (A14) muss auch auf SQLite hoch/runter/hoch laufen."""
+from pathlib import Path
+
+from alembic import command
+from alembic.config import Config
+from sqlalchemy import create_engine, inspect
+
+ROOT = Path(__file__).resolve().parent.parent
+
+
+def test_migration_a14_sqlite_up_down_up(tmp_path, monkeypatch):
+    url = f"sqlite:///{tmp_path / 'mig.db'}"
+    monkeypatch.setenv("FB_DATABASE_URL", url)
+    from app.config import get_settings
+    get_settings.cache_clear()
+    try:
+        cfg = Config(str(ROOT / "alembic.ini"))
+        cfg.set_main_option("script_location", str(ROOT / "alembic"))
+        engine = create_engine(url)
+
+        def state():
+            insp = inspect(engine)
+            return ("scenario_recurring_items" in insp.get_table_names(),
+                    "category_id" in {c["name"] for c in
+                                      insp.get_columns("scenario_planned_items")})
+
+        command.upgrade(cfg, "head")
+        assert state() == (True, True)
+        command.downgrade(cfg, "d5e8b3c7a410")
+        assert state() == (False, False)
+        command.upgrade(cfg, "head")
+        assert state() == (True, True)
+        engine.dispose()
+    finally:
+        get_settings.cache_clear()