diff --git a/tests/unit/test_asset_status_enum.py b/tests/unit/test_asset_status_enum.py
index b2d3d539c..69a9c399f 100755
--- a/tests/unit/test_asset_status_enum.py
+++ b/tests/unit/test_asset_status_enum.py
@@ -64,8 +64,9 @@ class TestAssetStatusFallback:
 
 
 class TestAssetStatusStrValue:
-    """枚举值仍为字符串，不影响序列化。"""
+    """枚举值仍为字符串类型，不影响序列化。"""
 
-    def test_str_value_unchanged(self):
+    def test_value_unchanged(self):
         assert AssetStatus.READY.value == "ready"
-        assert str(AssetStatus.READY) == "ready"
+        assert AssetStatus.FAILED.value == "failed"
+        assert isinstance(AssetStatus.READY, str)