test_missing_action_input() — langchain Function Reference

Architecture documentation for the test_missing_action_input() function in test_mrkl_output_parser.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

LangChainCore→ Runnables→ test_missing_action_input() — langchain Function Reference

Dependency Diagram

graph TD
  8f99e052_f255_d619_af68_dc625b3f458b["test_missing_action_input()"]
  0be9c738_c626_f1e6_d88c_a34315fe9090["test_mrkl_output_parser.py"]
  8f99e052_f255_d619_af68_dc625b3f458b -->|defined in| 0be9c738_c626_f1e6_d88c_a34315fe9090
  style 8f99e052_f255_d619_af68_dc625b3f458b fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/agents/test_mrkl_output_parser.py lines 44–53

def test_missing_action_input() -> None:
    llm_output = """I can use the `foo` tool to achieve the goal.
    Action: foo"""

    with pytest.raises(OutputParserException) as exception_info:
        mrkl_output_parser.parse(llm_output)
    assert (
        exception_info.value.observation
        == MISSING_ACTION_INPUT_AFTER_ACTION_ERROR_MESSAGE
    )