test_dereference_refs_list_index() — langchain Function Reference

Architecture documentation for the test_dereference_refs_list_index() function in test_json_schema.py from the langchain codebase.

Function python LangChainCore ApiManagement

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LangChainCore→ ApiManagement→ test_dereference_refs_list_index() — langchain Function Reference

Dependency Diagram

graph TD
  cb637ecf_b594_c32d_923f_ebe411d202b0["test_dereference_refs_list_index()"]
  5d9c8eae_7a4a_0ffa_fa7c_a89825bcf1fa["test_json_schema.py"]
  cb637ecf_b594_c32d_923f_ebe411d202b0 -->|defined in| 5d9c8eae_7a4a_0ffa_fa7c_a89825bcf1fa
  style cb637ecf_b594_c32d_923f_ebe411d202b0 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/utils/test_json_schema.py lines 275–452

def test_dereference_refs_list_index() -> None:
    """Test dereferencing refs that use list indices (e.g., anyOf/1)."""
    # Test case from the issue report - anyOf array with numeric index reference
    schema = {
        "type": "object",
        "properties": {
            "payload": {
                "anyOf": [
                    {  # variant 0
                        "type": "object",
                        "properties": {"kind": {"type": "string", "const": "ONE"}},
                    },
                    {  # variant 1
                        "type": "object",
                        "properties": {
                            "kind": {"type": "string", "const": "TWO"},
                            "startDate": {
                                "type": "string",
                                "pattern": r"^\d{4}-\d{2}-\d{2}$",
                            },
                            "endDate": {
                                "$ref": (
                                    "#/properties/payload/anyOf/1/properties/startDate"
                                )
                            },
                        },
                    },
                ]
            }
        },
    }

    expected = {
        "type": "object",
        "properties": {
            "payload": {
                "anyOf": [
                    {  # variant 0
                        "type": "object",
                        "properties": {"kind": {"type": "string", "const": "ONE"}},
                    },
                    {  # variant 1
                        "type": "object",
                        "properties": {
                            "kind": {"type": "string", "const": "TWO"},
                            "startDate": {
                                "type": "string",
                                "pattern": r"^\d{4}-\d{2}-\d{2}$",
                            },
                            "endDate": {
                                "type": "string",
                                "pattern": r"^\d{4}-\d{2}-\d{2}$",
                            },
                        },
                    },
                ]
            }
        },
    }

    actual = dereference_refs(schema)
    assert actual == expected

    # Test oneOf array with numeric index reference
    schema_oneof = {
        "type": "object",
        "properties": {
            "data": {
                "oneOf": [
                    {"type": "string"},
                    {"type": "number"},
                    {
                        "type": "object",
                        "properties": {"value": {"$ref": "#/properties/data/oneOf/1"}},
                    },
                ]
            }
        },
    }

    expected_oneof = {