[
    {
        "description": "unevaluatedProperties true",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "unevaluatedProperties": true
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {},
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties schema",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "unevaluatedProperties": {
                "type": "string",
                "minLength": 3
            }
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {},
                "valid": true
            },
            {
                "description": "with valid unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with invalid unevaluated properties",
                "data": {
                    "foo": "fo"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties false",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {},
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with adjacent properties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with adjacent patternProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "patternProperties": {
                "^foo": { "type": "string" }
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with adjacent additionalProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "additionalProperties": true,
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no additional properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties with nested properties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
                {
                    "properties": {
                        "bar": { "type": "string" }
                    }
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "with additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with nested patternProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
              {
                  "patternProperties": {
                      "^bar": { "type": "string" }
                  }
              }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "with additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with nested additionalProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
                {
                    "additionalProperties": true
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no additional properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with additional properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties with nested unevaluatedProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
                {
                    "unevaluatedProperties": true
                }
            ],
            "unevaluatedProperties": {
                "type": "string",
                "maxLength": 2
            }
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties with anyOf",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "anyOf": [
                {
                    "properties": {
                        "bar": { "const": "bar" }
                    },
                    "required": ["bar"]
                },
                {
                    "properties": {
                        "baz": { "const": "baz" }
                    },
                    "required": ["baz"]
                },
                {
                    "properties": {
                        "quux": { "const": "quux" }
                    },
                    "required": ["quux"]
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "when one matches and has no unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "when one matches and has unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "not-baz"
                },
                "valid": false
            },
            {
                "description": "when two match and has no unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": true
            },
            {
                "description": "when two match and has unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "baz",
                    "quux": "not-quux"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with oneOf",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "oneOf": [
                {
                    "properties": {
                        "bar": { "const": "bar" }
                    },
                    "required": ["bar"]
                },
                {
                    "properties": {
                        "baz": { "const": "baz" }
                    },
                    "required": ["baz"]
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "quux": "quux"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with not",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "not": {
                "not": {
                    "properties": {
                        "bar": { "const": "bar" }
                    },
                    "required": ["bar"]
                }
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with if/then/else",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "if": {
                "properties": {
                    "foo": { "const": "then" }
                },
                "required": ["foo"]
            },
            "then": {
                "properties": {
                    "bar": { "type": "string" }
                },
                "required": ["bar"]
            },
            "else": {
                "properties": {
                    "baz": { "type": "string" }
                },
                "required": ["baz"]
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "when if is true and has no unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "when if is true and has unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            },
            {
                "description": "when if is false and has no unevaluated properties",
                "data": {
                    "baz": "baz"
                },
                "valid": true
            },
            {
                "description": "when if is false and has unevaluated properties",
                "data": {
                    "foo": "else",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with if/then/else, then not defined",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "if": {
                "properties": {
                    "foo": { "const": "then" }
                },
                "required": ["foo"]
            },
            "else": {
                "properties": {
                    "baz": { "type": "string" }
                },
                "required": ["baz"]
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "when if is true and has no unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar"
                },
                "valid": false
            },
            {
                "description": "when if is true and has unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            },
            {
                "description": "when if is false and has no unevaluated properties",
                "data": {
                    "baz": "baz"
                },
                "valid": true
            },
            {
                "description": "when if is false and has unevaluated properties",
                "data": {
                    "foo": "else",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with if/then/else, else not defined",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "if": {
                "properties": {
                    "foo": { "const": "then" }
                },
                "required": ["foo"]
            },
            "then": {
                "properties": {
                    "bar": { "type": "string" }
                },
                "required": ["bar"]
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "when if is true and has no unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "when if is true and has unevaluated properties",
                "data": {
                    "foo": "then",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            },
            {
                "description": "when if is false and has no unevaluated properties",
                "data": {
                    "baz": "baz"
                },
                "valid": false
            },
            {
                "description": "when if is false and has unevaluated properties",
                "data": {
                    "foo": "else",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with dependentSchemas",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "dependentSchemas": {
                "foo": {
                    "properties": {
                        "bar": { "const": "bar" }
                    },
                    "required": ["bar"]
                }
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with boolean schemas",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [true],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties with $ref",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "$ref": "#/$defs/bar",
            "properties": {
                "foo": { "type": "string" }
            },
            "unevaluatedProperties": false,
            "$defs": {
                "bar": {
                    "properties": {
                        "bar": { "type": "string" }
                    }
                }
            }
        },
        "tests": [
            {
                "description": "with no unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            },
            {
                "description": "with unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar",
                    "baz": "baz"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties can't see inside cousins",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "allOf": [
                {
                    "properties": {
                        "foo": true
                    }
                },
                {
                    "unevaluatedProperties": false
                }
            ]
        },
        "tests": [
            {
                "description": "always fails",
                "data": {
                    "foo": 1
                },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties can't see inside cousins (reverse order)",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "allOf": [
                {
                    "unevaluatedProperties": false
                },
                {
                    "properties": {
                        "foo": true
                    }
                }
            ]
        },
        "tests": [
            {
                "description": "always fails",
                "data": {
                    "foo": 1
                },
                "valid": false
            }
        ]
    },
    {
        "description": "nested unevaluatedProperties, outer false, inner true, properties outside",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
                {
                    "unevaluatedProperties": true
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "nested unevaluatedProperties, outer false, inner true, properties inside",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "properties": {
                        "foo": { "type": "string" }
                    },
                    "unevaluatedProperties": true
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": true
            }
        ]
    },
    {
        "description": "nested unevaluatedProperties, outer true, inner false, properties outside",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": { "type": "string" }
            },
            "allOf": [
                {
                    "unevaluatedProperties": false
                }
            ],
            "unevaluatedProperties": true
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": false
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "nested unevaluatedProperties, outer true, inner false, properties inside",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "properties": {
                        "foo": { "type": "string" }
                    },
                    "unevaluatedProperties": false
                }
            ],
            "unevaluatedProperties": true
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "cousin unevaluatedProperties, true and false, true with properties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "properties": {
                        "foo": { "type": "string" }
                    },
                    "unevaluatedProperties": true
                },
                {
                    "unevaluatedProperties": false
                }
            ]
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": false
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "cousin unevaluatedProperties, true and false, false with properties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "unevaluatedProperties": true
                },
                {
                    "properties": {
                        "foo": { "type": "string" }
                    },
                    "unevaluatedProperties": false
                }
            ]
        },
        "tests": [
            {
                "description": "with no nested unevaluated properties",
                "data": {
                    "foo": "foo"
                },
                "valid": true
            },
            {
                "description": "with nested unevaluated properties",
                "data": {
                    "foo": "foo",
                    "bar": "bar"
                },
                "valid": false
            }
        ]
    },
    {
        "description": "property is evaluated in an uncle schema to unevaluatedProperties",
        "comment": "see https://stackoverflow.com/questions/66936884/deeply-nested-unevaluatedproperties-and-their-expectations",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "foo": {
                    "type": "object",
                    "properties": {
                        "bar": {
                            "type": "string"
                        }
                    },
                    "unevaluatedProperties": false
                  }
            },
            "anyOf": [
                {
                    "properties": {
                        "foo": {
                            "properties": {
                                "faz": {
                                    "type": "string"
                                }
                            }
                        }
                    }
                }
            ]
        },
        "tests": [
            {
                "description": "no extra properties",
                "data": {
                    "foo": {
                        "bar": "test"
                    }
                },
                "valid": true
            },
            {
                "description": "uncle keyword evaluation is not significant",
                "data": {
                    "foo": {
                        "bar": "test",
                        "faz": "test"
                    }
                },
                "valid": false
            }
        ]
    },
    {
        "description": "in-place applicator siblings, allOf has unevaluated",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "properties": {
                        "foo": true
                    },
                    "unevaluatedProperties": false
                }
            ],
            "anyOf": [
                {
                    "properties": {
                        "bar": true
                    }
                }
            ]
        },
        "tests": [
            {
                "description": "base case: both properties present",
                "data": {
                    "foo": 1,
                    "bar": 1
                },
                "valid": false
            },
            {
                "description": "in place applicator siblings, bar is missing",
                "data": {
                    "foo": 1
                },
                "valid": true
            },
            {
                "description": "in place applicator siblings, foo is missing",
                "data": {
                    "bar": 1
                },
                "valid": false
            }
        ]
    },
    {
        "description": "in-place applicator siblings, anyOf has unevaluated",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "allOf": [
                {
                    "properties": {
                        "foo": true
                    }
                }
            ],
            "anyOf": [
                {
                    "properties": {
                        "bar": true
                    },
                    "unevaluatedProperties": false
                }
            ]
        },
        "tests": [
            {
                "description": "base case: both properties present",
                "data": {
                    "foo": 1,
                    "bar": 1
                },
                "valid": false
            },
            {
                "description": "in place applicator siblings, bar is missing",
                "data": {
                    "foo": 1
                },
                "valid": false
            },
            {
                "description": "in place applicator siblings, foo is missing",
                "data": {
                    "bar": 1
                },
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties + single cyclic ref",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "type": "object",
            "properties": {
                "x": { "$ref": "#" }
            },
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "Empty is valid",
                "data": {},
                "valid": true
            },
            {
                "description": "Single is valid",
                "data": { "x": {} },
                "valid": true
            },
            {
                "description": "Unevaluated on 1st level is invalid",
                "data": { "x": {}, "y": {} },
                "valid": false
            },
            {
                "description": "Nested is valid",
                "data": { "x": { "x": {} } },
                "valid": true
            },
            {
                "description": "Unevaluated on 2nd level is invalid",
                "data": { "x": { "x": {}, "y": {} } },
                "valid": false
            },
            {
                "description": "Deep nested is valid",
                "data": { "x": { "x": { "x": {} } } },
                "valid": true
            },
            {
                "description": "Unevaluated on 3rd level is invalid",
                "data": { "x": { "x": { "x": {}, "y": {} } } },
                "valid": false
            }
        ]
    },
    {
        "description": "unevaluatedProperties + ref inside allOf / oneOf",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "$defs": {
                "one": {
                    "properties": { "a": true }
                },
                "two": {
                    "required": ["x"],
                    "properties": { "x": true }
                }
            },
            "allOf": [
                { "$ref": "#/$defs/one" },
                { "properties": { "b": true } },
                {
                    "oneOf": [
                        { "$ref": "#/$defs/two" },
                        {
                            "required": ["y"],
                            "properties": { "y": true }
                        }
                    ]
                }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "Empty is invalid (no x or y)",
                "data": {},
                "valid": false
            },
            {
                "description": "a and b are invalid (no x or y)",
                "data": { "a": 1, "b": 1 },
                "valid": false
            },
            {
                "description": "x and y are invalid",
                "data": { "x": 1, "y": 1 },
                "valid": false
            },
            {
                "description": "a and x are valid",
                "data": { "a": 1, "x": 1 },
                "valid": true
            },
            {
                "description": "a and y are valid",
                "data": { "a": 1, "y": 1 },
                "valid": true
            },
            {
                "description": "a and b and x are valid",
                "data": { "a": 1, "b": 1, "x": 1 },
                "valid": true
            },
            {
                "description": "a and b and y are valid",
                "data": { "a": 1, "b": 1, "y": 1 },
                "valid": true
            },
            {
                "description": "a and b and x and y are invalid",
                "data": { "a": 1, "b": 1, "x": 1, "y": 1 },
                "valid": false
            }
        ]
    },
    {
        "description": "dynamic evalation inside nested refs",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "$defs": {
                "one": {
                    "oneOf": [
                        { "$ref": "#/$defs/two" },
                        { "required": ["b"], "properties": { "b": true } },
                        { "required": ["xx"], "patternProperties": { "x": true } },
                        { "required": ["all"], "unevaluatedProperties": true }
                    ]
                },
                "two": {
                    "oneOf": [
                        { "required": ["c"], "properties": { "c": true } },
                        { "required": ["d"], "properties": { "d": true } }
                    ]
                }
            },
            "oneOf": [
                { "$ref": "#/$defs/one" },
                { "required": ["a"], "properties": { "a": true } }
            ],
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "Empty is invalid",
                "data": {},
                "valid": false
            },
            {
                "description": "a is valid",
                "data": { "a": 1 },
                "valid": true
            },
            {
                "description": "b is valid",
                "data": { "b": 1 },
                "valid": true
            },
            {
                "description": "c is valid",
                "data": { "c": 1 },
                "valid": true
            },
            {
                "description": "d is valid",
                "data": { "d": 1 },
                "valid": true
            },
            {
                "description": "a + b is invalid",
                "data": { "a": 1, "b": 1 },
                "valid": false
            },
            {
                "description": "a + c is invalid",
                "data": { "a": 1, "c": 1 },
                "valid": false
            },
            {
                "description": "a + d is invalid",
                "data": { "a": 1, "d": 1 },
                "valid": false
            },
            {
                "description": "b + c is invalid",
                "data": { "b": 1, "c": 1 },
                "valid": false
            },
            {
                "description": "b + d is invalid",
                "data": { "b": 1, "d": 1 },
                "valid": false
            },
            {
                "description": "c + d is invalid",
                "data": { "c": 1, "d": 1 },
                "valid": false
            },
            {
                "description": "xx is valid",
                "data": { "xx": 1 },
                "valid": true
            },
            {
                "description": "xx + foox is valid",
                "data": { "xx": 1, "foox": 1 },
                "valid": true
            },
            {
                "description": "xx + foo is invalid",
                "data": { "xx": 1, "foo": 1 },
                "valid": false
            },
            {
                "description": "xx + a is invalid",
                "data": { "xx": 1, "a": 1 },
                "valid": false
            },
            {
                "description": "xx + b is invalid",
                "data": { "xx": 1, "b": 1 },
                "valid": false
            },
            {
                "description": "xx + c is invalid",
                "data": { "xx": 1, "c": 1 },
                "valid": false
            },
            {
                "description": "xx + d is invalid",
                "data": { "xx": 1, "d": 1 },
                "valid": false
            },
            {
                "description": "all is valid",
                "data": { "all": 1 },
                "valid": true
            },
            {
                "description": "all + foo is valid",
                "data": { "all": 1, "foo": 1 },
                "valid": true
            },
            {
                "description": "all + a is invalid",
                "data": { "all": 1, "a": 1 },
                "valid": false
            }
        ]
    },
    {
        "description": "non-object instances are valid",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "unevaluatedProperties": false
        },
        "tests": [
            {
                "description": "ignores booleans",
                "data": true,
                "valid": true
            },
            {
                "description": "ignores integers",
                "data": 123,
                "valid": true
            },
            {
                "description": "ignores floats",
                "data": 1.0,
                "valid": true
            },
            {
                "description": "ignores arrays",
                "data": [],
                "valid": true
            },
            {
                "description": "ignores strings",
                "data": "foo",
                "valid": true
            },
            {
                "description": "ignores null",
                "data": null,
                "valid": true
            }
        ]
    },
    {
        "description": "unevaluatedProperties with null valued instance properties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "unevaluatedProperties": {
                "type": "null"
            }
        },
        "tests": [
            {
                "description": "allows null valued properties",
                "data": {"foo": null},
                "valid": true
            }
        ]
    }
]