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22 lines
546 B
22 lines
546 B
export const tests = [] |
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const t = (f) => tests.push(f) |
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// obj is declared and of type object |
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t(() => obj.constructor === Object) |
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// obj is constant and can not be re-assigned |
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t(({ fail }) => obj && fail(() => (obj = 10))) |
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// obj.str is of type string |
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t(() => typeof obj.str === 'string') |
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// obj.num is of type number |
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t(() => typeof obj.num === 'number') |
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// obj.bool is of type boolean |
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t(() => typeof obj.bool === 'boolean') |
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// obj.undef is of type undefined |
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t(() => 'undef' in obj && typeof obj.undef === 'undefined') |
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Object.freeze(tests)
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