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// Copyright (C) 2016 the V8 project authors. All rights reserved.
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-typedarray-buffer-byteoffset-length
description: >
Return new typedArray from undefined offset and length
info: |
22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )
This description applies only if the TypedArray function is called with at
least one argument and the Type of the first argument is Object and that
object has an [[ArrayBufferData]] internal slot.
includes: [testTypedArray.js]
features: [SharedArrayBuffer, TypedArray]
---*/
testWithTypedArrayConstructors(function(TA) {
var bpe = TA.BYTES_PER_ELEMENT;
var buffer1 = new SharedArrayBuffer(bpe * 4);
var ta1 = new TA(buffer1);
assert.sameValue(ta1.length, 4);
assert.sameValue(ta1.buffer, buffer1);
assert.sameValue(ta1.constructor, TA);
assert.sameValue(Object.getPrototypeOf(ta1), TA.prototype);
var buffer2 = new SharedArrayBuffer(0);
var ta2 = new TA(buffer2);
assert.sameValue(ta2.length, 0);
assert.sameValue(ta2.buffer, buffer2);
assert.sameValue(ta2.constructor, TA);
assert.sameValue(Object.getPrototypeOf(ta2), TA.prototype);
});
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