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Array length: add test ensuring RangeError is thrown
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test/built-ins/Array/length/define-own-prop-length-error.js
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// Copyright (C) 2023 Jordan Harband. All rights reserved. | ||
// This code is governed by the BSD license found in the LICENSE file. | ||
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/*--- | ||
author: Jordan Harband | ||
esid: sec-arraysetlength | ||
description: > | ||
Setting an invalid array length throws a RangeError | ||
info: | | ||
ArraySetLength ( A, Desc ) | ||
[...] | ||
5. If SameValueZero(newLen, numberLen) is false, throw a RangeError exception. | ||
[...] | ||
features: [] | ||
---*/ | ||
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assert.throws(RangeError, function () { | ||
Object.defineProperty([], 'length', { value: -1, configurable: true }); | ||
}); | ||
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assert.throws(RangeError, function () { | ||
// the string is intentionally "computed" here to ensure there are no optimization bugs | ||
Object.defineProperty([], 'len' + 'gth', { value: -1, configurable: true }); | ||
}); |