Fix postgres tests

libs/checkpoint-postgres/tests/test_async.py

@@ -11,6 +11,7 @@ from psycopg.rows import dict_row
 from psycopg_pool import AsyncConnectionPool
 
 from langgraph.checkpoint.base import (
+    EXCLUDED_METADATA_KEYS,
     Checkpoint,
     CheckpointMetadata,
     create_checkpoint,
@@ -23,6 +24,10 @@ from langgraph.checkpoint.postgres.aio import (
 from tests.conftest import DEFAULT_POSTGRES_URI
 
 
+def _exclude_keys(config: dict[str, Any]) -> dict[str, Any]:
+    return {k: v for k, v in config.items() if k not in EXCLUDED_METADATA_KEYS}
+
+
 @asynccontextmanager
 async def _pool_saver():
     """Fixture for pool mode testing."""
@@ -223,7 +228,6 @@ async def test_combined_metadata(saver_name: str, test_data) -> None:
         assert checkpoint.metadata == {
             **metadata,
             "thread_id": "thread-2",
-            "checkpoint_ns": "",
             "run_id": "my_run_id",
         }
 
@@ -251,14 +255,14 @@ async def test_asearch(saver_name: str, test_data) -> None:
         search_results_1 = [c async for c in saver.alist(None, filter=query_1)]
         assert len(search_results_1) == 1
         assert search_results_1[0].metadata == {
-            **configs[0]["configurable"],
+            **_exclude_keys(configs[0]["configurable"]),
             **metadata[0],
         }
 
         search_results_2 = [c async for c in saver.alist(None, filter=query_2)]
         assert len(search_results_2) == 1
         assert search_results_2[0].metadata == {
-            **configs[1]["configurable"],
+            **_exclude_keys(configs[1]["configurable"]),
             **metadata[1],
         }