test_agent_invalid_tool() — langchain Function Reference

Architecture documentation for the test_agent_invalid_tool() function in test_agent_async.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_agent_invalid_tool() — langchain Function Reference

Dependency Diagram

graph TD
  35a065d1_a2e3_b9f5_74f3_3f7003e13226["test_agent_invalid_tool()"]
  663245d2_2254_328f_5cf8_4bbd36fb32cc["test_agent_async.py"]
  35a065d1_a2e3_b9f5_74f3_3f7003e13226 -->|defined in| 663245d2_2254_328f_5cf8_4bbd36fb32cc
  style 35a065d1_a2e3_b9f5_74f3_3f7003e13226 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/tests/unit_tests/agents/test_agent_async.py lines 344–367

async def test_agent_invalid_tool() -> None:
    """Test agent invalid tool and correct suggestions."""
    fake_llm = FakeListLLM(responses=["FooBarBaz\nAction: Foo\nAction Input: Bar"])
    tools = [
        Tool(
            name="Search",
            func=lambda x: x,
            description="Useful for searching",
            return_direct=True,
        ),
    ]
    agent = initialize_agent(
        tools=tools,
        llm=fake_llm,
        agent=AgentType.ZERO_SHOT_REACT_DESCRIPTION,
        return_intermediate_steps=True,
        max_iterations=1,
    )

    resp = await agent.acall("when was langchain made")
    assert (
        resp["intermediate_steps"][0][1]
        == "Foo is not a valid tool, try one of [Search]."
    )