test_parameter_precedence_explicit_over_inherited() — langchain Function Reference

Source Code

libs/partners/huggingface/tests/unit_tests/test_chat_models.py lines 283–291

def test_parameter_precedence_explicit_over_inherited(mock_llm: Any) -> None:
    """Test that explicitly set parameters take precedence over inherited ones."""
    with patch(
        "langchain_huggingface.chat_models.huggingface.ChatHuggingFace._resolve_model_id"
    ):
        # Explicitly set max_tokens to override inheritance
        chat = ChatHuggingFace(llm=mock_llm, max_tokens=256, temperature=0.5)
        assert chat.max_tokens == 256  # explicit value, not inherited 512
        assert chat.temperature == 0.5  # explicit value, not inherited 0.7