test_get_buffer_string_invalid_format() — langchain Function Reference

Architecture documentation for the test_get_buffer_string_invalid_format() function in test_utils.py from the langchain codebase.

Function python CoreAbstractions MessageSchema

Entity Profile

CoreAbstractions→ MessageSchema→ test_get_buffer_string_invalid_format() — langchain Function Reference

Dependency Diagram

graph TD
  a9c8de24_39b8_27fa_dc7c_25cb1988851e["test_get_buffer_string_invalid_format()"]
  ea3f8d89_f44b_6738_3cb9_a740a73cfca4["test_utils.py"]
  a9c8de24_39b8_27fa_dc7c_25cb1988851e -->|defined in| ea3f8d89_f44b_6738_3cb9_a740a73cfca4
  style a9c8de24_39b8_27fa_dc7c_25cb1988851e fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/messages/test_utils.py lines 2265–2273

def test_get_buffer_string_invalid_format() -> None:
    """Test that invalid format values raise `ValueError`."""
    messages: list[BaseMessage] = [HumanMessage(content="Hello")]
    with pytest.raises(ValueError, match="Unrecognized format"):
        get_buffer_string(messages, format="xm")  # type: ignore[arg-type]
    with pytest.raises(ValueError, match="Unrecognized format"):
        get_buffer_string(messages, format="invalid")  # type: ignore[arg-type]
    with pytest.raises(ValueError, match="Unrecognized format"):
        get_buffer_string(messages, format="")  # type: ignore[arg-type]