test__construct_lc_result_from_responses_api_no_usage_metadata() — langchain Function Reference

Source Code

libs/partners/openai/tests/unit_tests/chat_models/test_base.py lines 1777–1805

def test__construct_lc_result_from_responses_api_no_usage_metadata() -> None:
    """Test a response without usage metadata."""
    response = Response(
        id="resp_123",
        created_at=1234567890,
        model="gpt-4o",
        object="response",
        parallel_tool_calls=True,
        tools=[],
        tool_choice="auto",
        output=[
            ResponseOutputMessage(
                type="message",
                id="msg_123",
                content=[
                    ResponseOutputText(
                        type="output_text", text="Hello, world!", annotations=[]
                    )
                ],
                role="assistant",
                status="completed",
            )
        ],
        # No usage field
    )

    result = _construct_lc_result_from_responses_api(response)

    assert cast(AIMessage, result.generations[0].message).usage_metadata is None