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14 lines
431 B
14 lines
431 B
5 years ago
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export const tests = []
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const t = (f) => tests.push(f)
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t(() => typeof concatStr === 'function', 'Should be a function')
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t(() => concatStr.length === 2, 'Should takes 2 arguments')
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t(() => concatStr('a', 'b') === 'ab')
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t(() => concatStr('yolo', 'swag') === 'yoloswag')
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// handle non strings correctly
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t(() => concatStr(1, 2) === '12')
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t(() => concatStr(concatStr, concatStr) === String(concatStr).repeat(2))
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Object.freeze(tests)
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