Optimize code and add unit tests

gui_agent_loop_core/backend/app.py

@@ -57,6 +57,9 @@
     except SyntaxError:
         logger.error(f"Syntax error in Python file")
         return []
+    except Exception as e:
+        logger.error(f"Unexpected error while parsing Python file: {str(e)}")
+        return []
 
 
 @app.get("/")

gui_agent_loop_core/backend/sandbox/sandbox_server_impl_gradio.py

@@ -25,10 +25,7 @@ def sandbox_server(interpreter_manager: InterpreterManager):
 
         def _change_agent(agent_name):
             print("_change_agent agent_name=", agent_name)
-            if agent_name == AgentName.AGENT_EXECUTOR.value:
-                return AgentName.SUPERVISOR.value
-            else:
-                return AgentName.AGENT_EXECUTOR.value
+            return AgentName.SUPERVISOR.value if agent_name == AgentName.AGENT_EXECUTOR.value else AgentName.AGENT_EXECUTOR.value
 
         app.load(
             fn=_change_agent,

gui_agent_loop_core/cli.py

@@ -23,7 +23,13 @@
         stream: bool = False,
         blocking: bool = False,
     ) -> GuiAgentInterpreterChatResponseAny:
-        content_res = request_core.content + "\ndisplay=" + display + "stream=" + stream + "blocking=" + blocking
+        content_res = (
+            f"{request_core.content}\n"
+            f"display={display}\n"
+            f"stream={stream}\n"
+            f"blocking={blocking}\n"
+            f"dummy_response=This is a dummy response for testing purposes."
+        )
         response = GuiAgentInterpreterChatResponse(content=content_res)
         return response