test_with_config_metadata_passthrough() — langchain Function Reference

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

Function python LangChainCore Runnables calls 1

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LangChainCore→ Runnables→ test_with_config_metadata_passthrough() — langchain Function Reference

Dependency Diagram

graph TD
  a5226eb9_296c_795b_9d07_388c671dd444["test_with_config_metadata_passthrough()"]
  26df6ad8_0189_51d0_c3c1_6c3248893ff5["test_runnable.py"]
  a5226eb9_296c_795b_9d07_388c671dd444 -->|defined in| 26df6ad8_0189_51d0_c3c1_6c3248893ff5
  fb618d44_c03b_ea8b_385b_2278dfb173d4["invoke()"]
  a5226eb9_296c_795b_9d07_388c671dd444 -->|calls| fb618d44_c03b_ea8b_385b_2278dfb173d4
  style a5226eb9_296c_795b_9d07_388c671dd444 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/core/tests/unit_tests/runnables/test_runnable.py lines 1143–1168

async def test_with_config_metadata_passthrough(mocker: MockerFixture) -> None:
    fake = FakeRunnableSerializable()
    spy = mocker.spy(fake.__class__, "invoke")
    fakew = fake.configurable_fields(hello=ConfigurableField(id="hello", name="Hello"))

    assert (
        fakew.with_config(tags=["a-tag"]).invoke(
            "hello",
            {
                "configurable": {"hello": "there", "__secret_key": "nahnah"},
                "metadata": {"bye": "now"},
            },
        )
        == 5
    )
    assert spy.call_args_list[0].args[1:] == (
        "hello",
        {
            "tags": ["a-tag"],
            "callbacks": None,
            "recursion_limit": 25,
            "configurable": {"hello": "there", "__secret_key": "nahnah"},
            "metadata": {"hello": "there", "bye": "now"},
        },
    )
    spy.reset_mock()