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452c0e5c61
* Automated assertion message update: Array.from * Automated assertion message update: Array.isArray * Automated assertion message update: Array length property * Automated assertion message update: Array.of * Automated assertion message update: Array * Automated assertion message update: Array.prototype.at * Automated assertion message update: Array.prototype.concat * Automated assertion message update: compareArray -> assert.compareArray
30 lines
1.2 KiB
JavaScript
30 lines
1.2 KiB
JavaScript
// Copyright (C) 2020 Alexey Shvayka. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-arraysetlength
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description: >
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[[Value]] is checked for overflow before descriptor validation.
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info: |
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ArraySetLength ( A, Desc )
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[...]
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3. Let newLen be ? ToUint32(Desc.[[Value]]).
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4. Let numberLen be ? ToNumber(Desc.[[Value]]).
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5. If newLen ≠ numberLen, throw a RangeError exception.
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---*/
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assert.throws(RangeError, function() {
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Object.defineProperty([], "length", {value: -1, configurable: true});
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}, 'Object.defineProperty([], "length", {value: -1, configurable: true}) throws a RangeError exception');
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assert.throws(RangeError, function() {
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Object.defineProperty([], "length", {value: NaN, enumerable: true});
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}, 'Object.defineProperty([], "length", {value: NaN, enumerable: true}) throws a RangeError exception');
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var array = [];
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Object.defineProperty(array, "length", {writable: false});
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assert.throws(RangeError, function() {
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Object.defineProperty(array, "length", {value: Number.MAX_SAFE_INTEGER, writable: true});
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}, 'Object.defineProperty(array, "length", {value: Number.MAX_SAFE_INTEGER, writable: true}) throws a RangeError exception');
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