[
    {
        "name": "basic true boolean",
        "raw": ["?1"],
        "header_type": "item",
        "expected": [true, []]
    },
    {
        "name": "basic false boolean",
        "raw": ["?0"],
        "header_type": "item",
        "expected": [false, []]
    },
    {
        "name": "unknown boolean",
        "raw": ["?Q"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "whitespace boolean",
        "raw": ["? 1"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "negative zero boolean",
        "raw": ["?-0"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "T boolean",
        "raw": ["?T"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "F boolean",
        "raw": ["?F"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "t boolean",
        "raw": ["?t"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "f boolean",
        "raw": ["?f"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "spelled-out True boolean",
        "raw": ["?True"],
        "header_type": "item",
        "must_fail": true
    },
    {
        "name": "spelled-out False boolean",
        "raw": ["?False"],
        "header_type": "item",
        "must_fail": true
    }
]