test_representation_of_runnables() — langchain Function Reference

Architecture documentation for the test_representation_of_runnables() function in test_runnable.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ test_representation_of_runnables() — langchain Function Reference

Dependency Diagram

graph TD
  af49a95f_3504_fc88_ff62_08b79e80ada8["test_representation_of_runnables()"]
  26df6ad8_0189_51d0_c3c1_6c3248893ff5["test_runnable.py"]
  af49a95f_3504_fc88_ff62_08b79e80ada8 -->|defined in| 26df6ad8_0189_51d0_c3c1_6c3248893ff5
  style af49a95f_3504_fc88_ff62_08b79e80ada8 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_runnable.py lines 4801–4830

def test_representation_of_runnables() -> None:
    """Test representation of runnables."""
    runnable = RunnableLambda[int, int](lambda x: x * 2)
    assert repr(runnable) == "RunnableLambda(lambda x: x * 2)"

    def f(_: int) -> int:
        """Return 2."""
        return 2

    assert repr(RunnableLambda(func=f)) == "RunnableLambda(f)"

    async def af(_: int) -> int:
        """Return 2."""
        return 2

    assert repr(RunnableLambda(func=f, afunc=af)) == "RunnableLambda(f)"

    assert repr(
        RunnableLambda(lambda x: x * 2)
        | {
            "a": RunnableLambda(lambda x: x * 2),
            "b": RunnableLambda(lambda x: x * 3),
        }
    ) == (
        "RunnableLambda(lambda x: x * 2)\n"
        "| {\n"
        "    a: RunnableLambda(...),\n"
        "    b: RunnableLambda(...)\n"
        "  }"
    )