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// |reftest| shell-option(--enable-change-array-by-copy) skip-if(!Array.prototype.with||!xulRuntime.shell) -- change-array-by-copy is not enabled unconditionally, requires shell-options
// Copyright (C) 2021 Igalia, S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.with
description: >
%TypedArray%.prototype.with adds length to index if it's negative.
info: |
%TypedArray%.prototype.with ( index, value )
...
2. Let len be ? LengthOfArrayLike(O).
3. Let relativeIndex be ? ToIntegerOrInfinity(index).
4. If index >= 0, let actualIndex be relativeIndex.
5. Else, let actualIndex be len + relativeIndex.
...
features: [TypedArray, change-array-by-copy]
includes: [testTypedArray.js, compareArray.js]
---*/
testWithTypedArrayConstructors(TA => {
var arr = new TA([0, 1, 2]);
assert.compareArray(arr.with(-1, 4), [0, 1, 4]);
assert.compareArray(arr.with(-3, 4), [4, 1, 2]);
// -0 is not negative.
assert.compareArray(arr.with(-0, 4), [4, 1, 2]);
});
reportCompare(0, 0);
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