test_lc_agent_name_not_in_astream_metadata_when_name_not_provided() — langchain Function Reference

Source Code

libs/langchain_v1/tests/unit_tests/agents/test_agent_name.py lines 185–196

async def test_lc_agent_name_not_in_astream_metadata_when_name_not_provided() -> None:
    """Test that lc_agent_name is not in async stream metadata when name not provided."""
    tool_calls: list[list[ToolCall]] = [[]]
    agent = create_agent(
        model=FakeToolCallingModel(tool_calls=tool_calls),
    )

    async for _chunk, metadata in agent.astream(
        {"messages": [HumanMessage("Hello async")]},
        stream_mode="messages",
    ):
        assert "lc_agent_name" not in metadata