additionalProperties.json

[
    {
        "description":
            "additionalProperties being false does not allow other properties",
        "specification": [ { "core":"10.3.2.3", "quote": "The value of \"additionalProperties\" MUST be a valid JSON Schema. Boolean \"false\" forbids everything." } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {"foo": {}, "bar": {}},
            "patternProperties": { "^v": {} },
            "additionalProperties": false
        },
        "tests": [
            {
                "description": "no additional properties is valid",
                "data": {"foo": 1},
                "valid": true
            },
            {
                "description": "an additional property is invalid",
                "data": {"foo" : 1, "bar" : 2, "quux" : "boom"},
                "valid": false
            },
            {
                "description": "ignores arrays",
                "data": [1, 2, 3],
                "valid": true
            },
            {
                "description": "ignores strings",
                "data": "foobarbaz",
                "valid": true
            },
            {
                "description": "ignores other non-objects",
                "data": 12,
                "valid": true
            },
            {
                "description": "patternProperties are not additional properties",
                "data": {"foo":1, "vroom": 2},
                "valid": true
            }
        ]
    },
    {
        "description": "non-ASCII pattern with additionalProperties",
        "specification": [ { "core":"10.3.2.3"} ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "patternProperties": {"^á": {}},
            "additionalProperties": false
        },
        "tests": [
            {
                "description": "matching the pattern is valid",
                "data": {"ármányos": 2},
                "valid": true
            },
            {
                "description": "not matching the pattern is invalid",
                "data": {"élmény": 2},
                "valid": false
            }
        ]
    },
    {
        "description": "additionalProperties with schema",
        "specification": [ { "core":"10.3.2.3", "quote": "The value of \"additionalProperties\" MUST be a valid JSON Schema." } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {"foo": {}, "bar": {}},
            "additionalProperties": {"type": "boolean"}
        },
        "tests": [
            {
                "description": "no additional properties is valid",
                "data": {"foo": 1},
                "valid": true
            },
            {
                "description": "an additional valid property is valid",
                "data": {"foo" : 1, "bar" : 2, "quux" : true},
                "valid": true
            },
            {
                "description": "an additional invalid property is invalid",
                "data": {"foo" : 1, "bar" : 2, "quux" : 12},
                "valid": false
            }
        ]
    },
    {
        "description": "additionalProperties can exist by itself",
        "specification": [ { "core":"10.3.2.3", "quote": "With no other applicator applying to object instances. This validates all the instance values irrespective of their property names" } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": {"type": "boolean"}
        },
        "tests": [
            {
                "description": "an additional valid property is valid",
                "data": {"foo" : true},
                "valid": true
            },
            {
                "description": "an additional invalid property is invalid",
                "data": {"foo" : 1},
                "valid": false
            }
        ]
    },
    {
        "description": "additionalProperties are allowed by default",
        "specification": [ { "core":"10.3.2.3", "quote": "Omitting this keyword has the same assertion behavior as an empty schema." } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {"foo": {}, "bar": {}}
        },
        "tests": [
            {
                "description": "additional properties are allowed",
                "data": {"foo": 1, "bar": 2, "quux": true},
                "valid": true
            }
        ]
    },
    {
        "description": "additionalProperties does not look in applicators",
        "specification":[ { "core": "10.2", "quote": "Subschemas of applicator keywords evaluate the instance completely independently such that the results of one such subschema MUST NOT impact the results of sibling subschemas." } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "allOf": [
                {"properties": {"foo": {}}}
            ],
            "additionalProperties": {"type": "boolean"}
        },
        "tests": [
            {
                "description": "properties defined in allOf are not examined",
                "data": {"foo": 1, "bar": true},
                "valid": false
            }
        ]
    },
    {
        "description": "additionalProperties with null valued instance properties",
        "specification": [ { "core":"10.3.2.3" } ],
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "additionalProperties": {
                "type": "null"
            }
        },
        "tests": [
            {
                "description": "allows null values",
                "data": {"foo": null},
                "valid": true
            }
        ]
    },
    {
        "description": "additionalProperties with propertyNames",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "propertyNames": {
                "maxLength": 5
            },
            "additionalProperties": {
                "type": "number"
            }
        },
        "tests": [
            {
                "description": "Valid against both keywords",
                "data": { "apple": 4 },
                "valid": true
            },
            {
                "description": "Valid against propertyNames, but not additionalProperties",
                "data": { "fig": 2, "pear": "available" },
                "valid": false
            }
        ]
    },
    {
        "description": "dependentSchemas with additionalProperties",
        "schema": {
            "$schema": "https://json-schema.org/draft/2020-12/schema",
            "properties": {"foo2": {}},
            "dependentSchemas": {
                "foo" : {},
                "foo2": {
                    "properties": {
                        "bar": {}
                    }
                }
            },
            "additionalProperties": false
        },
        "tests": [
            {
                "description": "additionalProperties doesn't consider dependentSchemas",
                "data": {"foo": ""},
                "valid": false
            },
            {
                "description": "additionalProperties can't see bar",
                "data": {"bar": ""},
                "valid": false
            },
            {
                "description": "additionalProperties can't see bar even when foo2 is present",
                "data": {"foo2": "", "bar": ""},
                "valid": false
            }
        ]
    }
]