Function test_no_schema_args_handling

tests/unittests/tools/test_agent_tool.py:1455–1533

AgentTool.run_async handles fallback schema cases properly. - Non-'request' args are serialized as JSON. - 'request' key is kept as plain text (backward compatibility). - Empty string 'request' is correctly preserved instead of evaluating to false.

(monkeypatch, args, expected_text)

)
@mark.asyncio
async def test_no_schema_args_handling(monkeypatch, args, expected_text):
  """AgentTool.run_async handles fallback schema cases properly.

  - Non-'request' args are serialized as JSON.
  - 'request' key is kept as plain text (backward compatibility).
  - Empty string 'request' is correctly preserved instead of evaluating to
  false.
  """
  captured = {}

  async def _empty_async_generator():
    if False:
      yield None

  class StubRunner:

    def __init__(
        self,
        *,
        app_name: str,
        agent,
        artifact_service,
        session_service,
        memory_service,
        credential_service,
        plugins,
    ):
      del artifact_service, memory_service, credential_service
      self.agent = agent
      self.session_service = session_service
      self.plugin_manager = PluginManager(plugins=plugins)
      self.app_name = app_name

    def run_async(
        self,
        *,
        user_id: str,
        session_id: str,
        invocation_id=None,
        new_message=None,
        state_delta=None,
        run_config=None,
    ):
      captured['new_message'] = new_message
      return _empty_async_generator()

    async def close(self):
      pass

  monkeypatch.setattr('google.adk.runners.Runner', StubRunner)

  tool_agent = Agent(name='tool_agent', model='test-model')
  agent_tool = AgentTool(agent=tool_agent)
  root_agent = Agent(name='root_agent', model='test-model', tools=[agent_tool])

  session_service = InMemorySessionService()
  session = await session_service.create_session(
      app_name='test_app', user_id='user'