mirror of https://github.com/tc39/test262.git
Add Array#splice non-extensible test
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// 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-array.prototype.splice
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description: >
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TypeError is thrown if CreateDataProperty fails.
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(result object is non-extensible)
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info: |
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Array.prototype.splice ( start, deleteCount, ...items )
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[...]
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11. Repeat, while k < actualDeleteCount
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[...]
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c. If fromPresent is true, then
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[...]
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ii. Perform ? CreateDataPropertyOrThrow(A, ! ToString(k), fromValue).
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[...]
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CreateDataPropertyOrThrow ( O, P, V )
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[...]
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3. Let success be ? CreateDataProperty(O, P, V).
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4. If success is false, throw a TypeError exception.
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features: [Symbol.species]
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---*/
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var A = function(_length) {
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this.length = 0;
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Object.preventExtensions(this);
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};
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var arr = [1];
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arr.constructor = {};
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arr.constructor[Symbol.species] = A;
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assert.throws(TypeError, function() {
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arr.splice(0);
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});
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