chore: import upstream snapshot with attribution

ingestion/tests/unit/source/database/test_database_service.py

@@ -0,0 +1,25 @@
+#  Copyright 2025 Collate
+#  Licensed under the Collate Community License, Version 1.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#  https://github.com/open-metadata/OpenMetadata/blob/main/ingestion/LICENSE
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+"""
+Structural tests for DatabaseServiceSource — guards against re-introducing
+progress-projection responsibilities that now live in the topology runner
+and connector-specific modules.
+"""
+
+from metadata.ingestion.source.database.database_service import DatabaseServiceSource
+
+
+class TestDatabaseServiceHasNoProgressProjection:
+    def test_no_container_expected_count(self):
+        assert "container_expected_count" not in vars(DatabaseServiceSource)
+
+    def test_no_progress_snapshot(self):
+        assert "progress_snapshot" not in vars(DatabaseServiceSource)