test_metadata_is_merged() — langchain Function Reference

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

Function python LangChainCore Runnables calls 1

Entity Profile

LangChainCore→ Runnables→ test_metadata_is_merged() — langchain Function Reference

Dependency Diagram

graph TD
  47084009_f375_926c_0adf_bf2600c0ca4c["test_metadata_is_merged()"]
  26df6ad8_0189_51d0_c3c1_6c3248893ff5["test_runnable.py"]
  47084009_f375_926c_0adf_bf2600c0ca4c -->|defined in| 26df6ad8_0189_51d0_c3c1_6c3248893ff5
  f59d5b6a_111b_6895_b338_7e3d29e63896["invoke()"]
  47084009_f375_926c_0adf_bf2600c0ca4c -->|calls| f59d5b6a_111b_6895_b338_7e3d29e63896
  style 47084009_f375_926c_0adf_bf2600c0ca4c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_runnable.py lines 3473–3484

def test_metadata_is_merged() -> None:
    """Test metadata and tags defined in with_config and at are merged/concatend."""
    foo = RunnableLambda(lambda x: x).with_config({"metadata": {"my_key": "my_value"}})
    expected_metadata = {
        "my_key": "my_value",
        "my_other_key": "my_other_value",
    }
    with collect_runs() as cb:
        foo.invoke("hi", {"metadata": {"my_other_key": "my_other_value"}})
        run = cb.traced_runs[0]
    assert run.extra is not None
    assert run.extra["metadata"] == expected_metadata