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test_model_request_backwards_compatible() — langchain Function Reference

Architecture documentation for the test_model_request_backwards_compatible() function in test_middleware_typing.py from the langchain codebase.

Function python LangChainCore LanguageModelBase

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Dependency Diagram

graph TD
  43cf5601_2684_ba27_ac49_7eaf6eb4a48a["test_model_request_backwards_compatible()"]
  689eac1f_5845_440c_f60b_988968e02ee6["test_middleware_typing.py"]
  43cf5601_2684_ba27_ac49_7eaf6eb4a48a -->|defined in| 689eac1f_5845_440c_f60b_988968e02ee6
  style 43cf5601_2684_ba27_ac49_7eaf6eb4a48a fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_typing.py lines 389–396

def test_model_request_backwards_compatible() -> None:
    """Test that ModelRequest can be instantiated without type params."""
    request = ModelRequest(
        model=None,  # type: ignore[arg-type]
        messages=[HumanMessage(content="test")],
    )

    assert request.messages[0].content == "test"

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Defined In

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Frequently Asked Questions

What does test_model_request_backwards_compatible() do?
test_model_request_backwards_compatible() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_typing.py.
Where is test_model_request_backwards_compatible() defined?
test_model_request_backwards_compatible() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware_typing/test_middleware_typing.py at line 389.

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