Self-referencing a type ends up creating a new definition about schemars

[aeqz]

I have experienced the same issue, but with types that have an indirect reference cycle instead (e.g. A references to B, which references to C, which references to A again), so using self references in the generated schema would not be enough in that case.

Maybe an expected output that also takes into account indirect reference cycles would be the following:

{
    "$schema": "http://json-schema.org/draft-07/schema#",
    "title": "Test",
    "$ref": "#/definitions/Test", // <------------------------- reference to the definition
    "definitions": {
        "Test": {
            "oneOf": [
                {
                    "type": ["object", "string"],
                    "required": ["function"],
                    "properties": {
                        "function": {
                            "type": "string",
                            "enum": ["randomVariantA"]
                        }
                    }
                },
                {
                    "type": ["object", "integer"],
                    "format": "int32",
                    "required": ["function"],
                    "properties": {
                        "function": {
                            "type": "string",
                            "enum": ["randomVariantB"]
                        }
                    }
                },
                {
                    "type": ["object", "array"],
                    "items": {
                        "$ref": "#/definitions/Test"
                    },
                    "required": ["function"],
                    "properties": {
                        "function": {
                            "type": "string",
                            "enum": ["recursiveTests"]
                        }
                    }
                }
            ]
        }
    }
}