test_with_field_metadata() — langchain Function Reference

Architecture documentation for the test_with_field_metadata() function in test_pydantic.py from the langchain codebase.

Function python LangChainCore MessageInterface

Entity Profile

LangChainCore→ MessageInterface→ test_with_field_metadata() — langchain Function Reference

Dependency Diagram

graph TD
  f28f2263_faab_5baa_e7dc_fbd5e67596a9["test_with_field_metadata()"]
  f94b56e0_336c_6748_3628_73edd4212b01["test_pydantic.py"]
  f28f2263_faab_5baa_e7dc_fbd5e67596a9 -->|defined in| f94b56e0_336c_6748_3628_73edd4212b01
  style f28f2263_faab_5baa_e7dc_fbd5e67596a9 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/utils/test_pydantic.py lines 110–133

def test_with_field_metadata() -> None:
    """Test pydantic with field metadata."""

    class Foo(BaseModel):
        x: list[int] = Field(
            description="List of integers", min_length=10, max_length=15
        )

    subset_model = _create_subset_model_v2("Foo", Foo, ["x"])
    assert subset_model.model_json_schema() == {
        "properties": {
            "x": {
                "description": "List of integers",
                "items": {"type": "integer"},
                "maxItems": 15,
                "minItems": 10,
                "title": "X",
                "type": "array",
            }
        },
        "required": ["x"],
        "title": "Foo",
        "type": "object",
    }