CloneArrayBuffer.js

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var BUGNUMBER = 1264941;

var summary = 'CloneArrayBuffer should be called with byteLength of source typedArray';

print(BUGNUMBER + ": " + summary);

function test(ctor, byteLength) {

  var abuf = new ctor(byteLength);

  assertEq(abuf.byteLength, byteLength);

  for (var byteOffset of [0, 16]) {

    for (var elementLength = 0;

         elementLength < (byteLength - byteOffset) / Float64Array.BYTES_PER_ELEMENT;

         elementLength++) {

      var a1 = new Float64Array(abuf, byteOffset, elementLength);

      assertEq(a1.buffer.byteLength, byteLength);

      assertEq(a1.byteLength, elementLength * Float64Array.BYTES_PER_ELEMENT);

      assertEq(a1.byteOffset, byteOffset);

      var a2 = new Float64Array(a1);

      assertEq(a2.buffer.byteLength, a1.byteLength);

      assertEq(a2.byteLength, a1.byteLength);

      assertEq(a2.byteOffset, 0);

test(ArrayBuffer, 16);

test(ArrayBuffer, 128);

class MyArrayBuffer extends ArrayBuffer {}

test(MyArrayBuffer, 16);

test(MyArrayBuffer, 128);

if (typeof reportCompare === 'function')

  reportCompare(true, true);