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test_empty_handlers_returns_none() — langchain Function Reference

Architecture documentation for the test_empty_handlers_returns_none() function in test_composition.py from the langchain codebase.

Function python LangChainCore Runnables

Entity Profile

Dependency Diagram

graph TD
  4e4c10fc_acb2_f34f_4a0f_ce888891b6a1["test_empty_handlers_returns_none()"]
  f1e766c6_5a64_9e6c_f2a8_d41c64f6f142["TestChainModelCallHandlers"]
  4e4c10fc_acb2_f34f_4a0f_ce888891b6a1 -->|defined in| f1e766c6_5a64_9e6c_f2a8_d41c64f6f142
  style 4e4c10fc_acb2_f34f_4a0f_ce888891b6a1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_composition.py lines 43–46

    def test_empty_handlers_returns_none(self) -> None:
        """Test that empty handlers list returns None."""
        result = _chain_model_call_handlers([])
        assert result is None

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Defined In

Source

Frequently Asked Questions

What does test_empty_handlers_returns_none() do?
test_empty_handlers_returns_none() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_composition.py.
Where is test_empty_handlers_returns_none() defined?
test_empty_handlers_returns_none() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/core/test_composition.py at line 43.

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