tyler.durden/test262
1
0
Fork 0
mirror of https://github.com/tc39/test262.git synced 2025-07-20 20:44:43 +02:00
Code Issues Packages Projects Releases Wiki Activity

Add coverage for negative indices with resizable typed arrays to TA.prototype.with

Browse Source 
V8 doesn't handle this case correctly.
This commit is contained in:
André Bargull 2025-05-12 15:58:00 +02:00 committed by Philip Chimento
parent 88c5b410aa
commit 17bfbc8783
2 changed files with 74 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
test/built-ins/TypedArray/prototype/with/negative-index-resize-to-in-bounds.js vendored Normal file
View File

@ -0,0 +1,37 @@
// Copyright (C) 2025 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.with
description: >
Negative index is relative to the original typed array length.
info: |
%TypedArray%.prototype.with ( index, value )
...
4. Let relativeIndex be ? ToIntegerOrInfinity(index).
5. If relativeIndex ≥ 0, let actualIndex be relativeIndex.
6. Else, let actualIndex be len + relativeIndex.
...
9. If IsValidIntegerIndex(O, 𝔽(actualIndex)) is false, throw a RangeError exception.
...
features: [TypedArray, change-array-by-copy, resizable-arraybuffer]
includes: [testTypedArray.js]
---*/
testWithTypedArrayConstructors(function(TA) {
var byteLength = 4 * TA.BYTES_PER_ELEMENT;
var rab = new ArrayBuffer(0, {maxByteLength: byteLength});
var ta = new TA(rab);
var value = {
valueOf() {
rab.resize(byteLength);
return 123;
}
};
assert.throws(RangeError, function() {
ta.with(-1, value);
});
});

37
test/built-ins/TypedArray/prototype/with/negative-index-resize-to-out-of-bounds.js vendored Normal file
View File

@ -0,0 +1,37 @@
// Copyright (C) 2025 André Bargull. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.with
description: >
Negative index is relative to the original typed array length.
info: |
%TypedArray%.prototype.with ( index, value )
...
4. Let relativeIndex be ? ToIntegerOrInfinity(index).
5. If relativeIndex ≥ 0, let actualIndex be relativeIndex.
6. Else, let actualIndex be len + relativeIndex.
...
9. If IsValidIntegerIndex(O, 𝔽(actualIndex)) is false, throw a RangeError exception.
...
features: [TypedArray, change-array-by-copy, resizable-arraybuffer]
includes: [testTypedArray.js]
---*/
testWithTypedArrayConstructors(function(TA) {
var byteLength = 4 * TA.BYTES_PER_ELEMENT;
var rab = new ArrayBuffer(byteLength, {maxByteLength: byteLength});
var ta = new TA(rab);
var value = {
valueOf() {
rab.resize(TA.BYTES_PER_ELEMENT);
return 123;
}
};
assert.throws(RangeError, function() {
ta.with(-1, value);
});
});