diff --git a/src/promptflow/tests/executor/unittests/_utils/test_tool_utils.py b/src/promptflow/tests/executor/unittests/_utils/test_tool_utils.py
index b9a9cf2fe9ab..8716a4a9a620 100644
--- a/src/promptflow/tests/executor/unittests/_utils/test_tool_utils.py
+++ b/src/promptflow/tests/executor/unittests/_utils/test_tool_utils.py
@@ -5,8 +5,8 @@
 
 from promptflow._core._errors import DuplicateToolMappingError
 from promptflow._utils.tool_utils import (
-    RetrieveToolFuncResultError,
     ListFunctionResponseError,
+    RetrieveToolFuncResultError,
     RetrieveToolFuncResultValidationError,
     _find_deprecated_tools,
     append_workspace_triple_to_func_input_params,
@@ -376,7 +376,7 @@ def test_load_function_from_function_path_with_error(self, mock_module_with_list
             (
                 ToolFuncCallScenario.REVERSE_GENERATED_BY,
                 "dummy_result",
-                f"ToolFuncCallScenario {ToolFuncCallScenario.REVERSE_GENERATED_BY} response must be a dict. "
+                f"ToolFuncCallScenario {ToolFuncCallScenario.REVERSE_GENERATED_BY.value} response must be a dict. "
                 f"dummy_result is not a dict.",
             ),
             (