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test_state_schema_none_uses_default() — langchain Function Reference

Architecture documentation for the test_state_schema_none_uses_default() function in test_state_schema.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

Dependency Diagram

graph TD
  06520f53_a7f1_09dc_c4e5_98a05da81381["test_state_schema_none_uses_default()"]
  3d4a3f09_0839_f785_dcfd_f1e7b13e3204["test_state_schema.py"]
  06520f53_a7f1_09dc_c4e5_98a05da81381 -->|defined in| 3d4a3f09_0839_f785_dcfd_f1e7b13e3204
  style 06520f53_a7f1_09dc_c4e5_98a05da81381 fill:#6366f1,stroke:#818cf8,color:#fff

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Source Code

libs/langchain_v1/tests/unit_tests/agents/test_state_schema.py lines 155–168

def test_state_schema_none_uses_default() -> None:
    """Test that state_schema=None uses default AgentState."""
    agent = create_agent(
        model=FakeToolCallingModel(
            tool_calls=[[{"args": {"x": 1}, "id": "call_1", "name": "simple_tool"}], []]
        ),
        tools=[simple_tool],
        state_schema=None,
    )

    result = agent.invoke({"messages": [HumanMessage("Test")]})

    assert len(result["messages"]) == 4
    assert "Result: 1" in result["messages"][2].content

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Defined In

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Frequently Asked Questions

What does test_state_schema_none_uses_default() do?
test_state_schema_none_uses_default() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/test_state_schema.py.
Where is test_state_schema_none_uses_default() defined?
test_state_schema_none_uses_default() is defined in libs/langchain_v1/tests/unit_tests/agents/test_state_schema.py at line 155.

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