js/src/tests/test262/built-ins/TypedArrayConstructors/ctors-bigint/buffer-arg/typedarray-backed-by-sharedarraybuffer.js


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// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally
// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
esid: sec-typedarray-typedarray
description: >
  Passing a SharedArrayBuffer-backed TypedArray to a TypedArray constructor
  produces an ArrayBuffer-backed TypedArray.
includes: [testBigIntTypedArray.js]
features: [BigInt, SharedArrayBuffer, TypedArray]
---*/

var sab = new SharedArrayBuffer(8);

testWithBigIntTypedArrayConstructors(function(View1) {
  var ta1 = new View1(sab);
  testWithBigIntTypedArrayConstructors(function(View2) {
    var ta2 = new View2(ta1);
    assert.sameValue(
      ta2.buffer.constructor,
      ArrayBuffer,
      "TypedArray of SharedArrayBuffer-backed TypedArray is ArrayBuffer-backed"
    );
  });
});

reportCompare(0, 0);