diff --git a/src/promptflow/promptflow/_sdk/operations/_test_submitter.py b/src/promptflow/promptflow/_sdk/operations/_test_submitter.py
index 4137d53e02f5..3cd285e2e58c 100644
--- a/src/promptflow/promptflow/_sdk/operations/_test_submitter.py
+++ b/src/promptflow/promptflow/_sdk/operations/_test_submitter.py
@@ -157,7 +157,8 @@ def flow_test(
         environment_variables = environment_variables if environment_variables else {}
         SubmitterHelper.init_env(environment_variables=environment_variables)
 
-        with LoggerOperations(file_path=self.flow.code / PROMPT_FLOW_DIR_NAME / "flow.log", stream=stream_log, credential_list=credential_list):
+        with LoggerOperations(file_path=self.flow.code / PROMPT_FLOW_DIR_NAME / "flow.log", \
+                              stream=stream_log, credential_list=credential_list):
             storage = DefaultRunStorage(base_dir=self.flow.code, sub_dir=Path(".promptflow/intermediate"))
             flow_executor = FlowExecutor.create(
                 self.flow.path, connections, self.flow.code, storage=storage, raise_ex=False
@@ -199,7 +200,8 @@ def node_test(
         SubmitterHelper.resolve_environment_variables(environment_variables=environment_variables, client=self._client)
         SubmitterHelper.init_env(environment_variables=environment_variables)
 
-        with LoggerOperations(file_path=self.flow.code / PROMPT_FLOW_DIR_NAME / f"{node_name}.node.log", stream=stream, credential_list=credential_list):
+        with LoggerOperations(file_path=self.flow.code / PROMPT_FLOW_DIR_NAME / f"{node_name}.node.log", \
+                              stream=stream, credential_list=credential_list):
             result = FlowExecutor.load_and_exec_node(
                 self.flow.path,
                 node_name,