blob: 3862d7b7d28b0d2c0270755d0c9cb5c7f058744e [file] [log] [blame]
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-%typedarray%.prototype.copywithin
description: >
Max values of target and start positions are this.length.
info: |
22.2.3.5 %TypedArray%.prototype.copyWithin (target, start [ , end ] )
%TypedArray%.prototype.copyWithin is a distinct function that implements the
same algorithm as Array.prototype.copyWithin as defined in 22.1.3.3 except
that the this object's [[ArrayLength]] internal slot is accessed in place of
performing a [[Get]] of "length" and the actual copying of values in step 12
must be performed in a manner that preserves the bit-level encoding of the
source data.
...
includes: [compareArray.js, testTypedArray.js]
features: [TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
assert(
compareArray(
new TA([0, 1, 2, 3, 4, 5]).copyWithin(6, 0),
[0, 1, 2, 3, 4, 5]
)
);
assert(
compareArray(
new TA([1, 2, 3, 4, 5]).copyWithin(Infinity, 0),
[1, 2, 3, 4, 5]
),
'[1, 2, 3, 4, 5].copyWithin(Infinity, 0) -> [1, 2, 3, 4, 5]'
);
assert(
compareArray(
new TA([0, 1, 2, 3, 4, 5]).copyWithin(0, 6),
[0, 1, 2, 3, 4, 5]
)
);
assert(
compareArray(
new TA([1, 2, 3, 4, 5]).copyWithin(0, Infinity),
[1, 2, 3, 4, 5]
),
'[1, 2, 3, 4, 5].copyWithin(0, Infinity) -> [1, 2, 3, 4, 5]'
);
assert(
compareArray(
new TA([0, 1, 2, 3, 4, 5]).copyWithin(6, 6),
[0, 1, 2, 3, 4, 5]
)
);
assert(
compareArray(
new TA([0, 1, 2, 3, 4, 5]).copyWithin(10, 10),
[0, 1, 2, 3, 4, 5]
)
);
assert(
compareArray(
new TA([1, 2, 3, 4, 5]).copyWithin(Infinity, Infinity),
[1, 2, 3, 4, 5]
),
'[1, 2, 3, 4, 5].copyWithin(Infinity, Infinity) -> [1, 2, 3, 4, 5]'
);
});