test_ignore_session_id() — langchain Function Reference

Architecture documentation for the test_ignore_session_id() function in test_history.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ test_ignore_session_id() — langchain Function Reference

Dependency Diagram

graph TD
  99b43ed9_41a0_4e5b_b042_817f1939e0b0["test_ignore_session_id()"]
  0af0dfde_fe33_f3e5_b5e6_a3d18260dc67["test_history.py"]
  99b43ed9_41a0_4e5b_b042_817f1939e0b0 -->|defined in| 0af0dfde_fe33_f3e5_b5e6_a3d18260dc67
  style 99b43ed9_41a0_4e5b_b042_817f1939e0b0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_history.py lines 780–798

def test_ignore_session_id() -> None:
    """Test without config."""

    def _fake_llm(messages: list[BaseMessage]) -> list[BaseMessage]:
        return [
            AIMessage(
                content="you said: "
                + "\n".join(
                    str(m.content) for m in messages if isinstance(m, HumanMessage)
                )
            )
        ]

    runnable = RunnableLambda(_fake_llm)
    history = InMemoryChatMessageHistory()
    with_message_history = RunnableWithMessageHistory(runnable, lambda: history)
    _ = with_message_history.invoke("hello")
    _ = with_message_history.invoke("hello again")
    assert len(history.messages) == 4