test_transform_chain() — langchain Function Reference

Architecture documentation for the test_transform_chain() function in test_transform.py from the langchain codebase.

Function python LangChainCore ApiManagement

Entity Profile

LangChainCore→ ApiManagement→ test_transform_chain() — langchain Function Reference

Dependency Diagram

graph TD
  5c228281_fd60_c403_ecb5_7bab7924bec7["test_transform_chain()"]
  ecc33835_be56_676c_ce64_c4e504342fbf["test_transform.py"]
  5c228281_fd60_c403_ecb5_7bab7924bec7 -->|defined in| ecc33835_be56_676c_ce64_c4e504342fbf
  style 5c228281_fd60_c403_ecb5_7bab7924bec7 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/chains/test_transform.py lines 19–29

def test_transform_chain() -> None:
    """Test basic transform chain."""
    transform_chain = TransformChain(
        input_variables=["first_name", "last_name"],
        output_variables=["greeting"],
        transform=dummy_transform,
    )
    input_dict = {"first_name": "Leroy", "last_name": "Jenkins"}
    response = transform_chain(input_dict)
    expected_response = {"greeting": "Leroy Jenkins says hello"}
    assert response == expected_response