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test_no_pii_returns_none() — langchain Function Reference

Architecture documentation for the test_no_pii_returns_none() function in test_pii.py from the langchain codebase.

Function python LangChainCore ApiManagement

Entity Profile

Dependency Diagram

graph TD
  0adf1db3_cbc6_c082_9e82_609ea365b291["test_no_pii_returns_none()"]
  74acad26_e3cd_8385_fcb7_9bf787fa3f4a["TestPIIMiddlewareIntegration"]
  0adf1db3_cbc6_c082_9e82_609ea365b291 -->|defined in| 74acad26_e3cd_8385_fcb7_9bf787fa3f4a
  style 0adf1db3_cbc6_c082_9e82_609ea365b291 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_pii.py lines 407–413

    def test_no_pii_returns_none(self) -> None:
        """Test that middleware returns None when no PII detected."""
        middleware = PIIMiddleware("email", strategy="redact")
        state = AgentState[Any](messages=[HumanMessage("No PII here")])

        result = middleware.before_model(state, Runtime())
        assert result is None

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Defined In

Source

Frequently Asked Questions

What does test_no_pii_returns_none() do?
test_no_pii_returns_none() is a function in the langchain codebase, defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_pii.py.
Where is test_no_pii_returns_none() defined?
test_no_pii_returns_none() is defined in libs/langchain_v1/tests/unit_tests/agents/middleware/implementations/test_pii.py at line 407.

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