[
    {
        "description": "required validation",
        "schema": {
            "properties": {
                "foo": {},
                "bar": {}
            },
            "required": ["foo"]
        },
        "tests": [
            {
                "description": "present required property is valid",
                "data": {"foo": 1},
                "valid": true
            },
            {
                "description": "non-present required property is invalid",
                "data": {"bar": 1},
                "valid": false
            }
        ]
    },
    {
        "description": "required default validation",
        "schema": {
            "properties": {
                "foo": {}
            }
        },
        "tests": [
            {
                "description": "not required by default",
                "data": {},
                "valid": true
            }
        ]
    }
]