test_get_buffer_string_xml_tool_calls_empty_content() — langchain Function Reference

Source Code

libs/core/tests/unit_tests/messages/test_utils.py lines 2050–2072

def test_get_buffer_string_xml_tool_calls_empty_content() -> None:
    """Test XML format with `AIMessage` having empty `content` and `tool_calls`."""
    messages = [
        AIMessage(
            content="",
            tool_calls=[
                {
                    "name": "search",
                    "args": {"query": "test"},
                    "id": "call_2",
                    "type": "tool_call",
                }
            ],
        ),
    ]
    result = get_buffer_string(messages, format="xml")
    # No content element when content is empty
    expected = (
        '<message type="ai">\n'
        '  <tool_call id="call_2" name="search">{"query": "test"}</tool_call>\n'
        "</message>"
    )
    assert result == expected