LayoutTests/streams/clone-array-buffer.html

<!DOCTYPE html>
<script src='../resources/testharness.js'></script>
<script src='../resources/testharnessreport.js'></script>
<script>
'use strict';

const CloneArrayBuffer = internals.cloneArrayBuffer.bind(internals);

test(function() {
    const typedArray = new Uint8Array([3, 5, 7]);
    const clonedBuffer = CloneArrayBuffer(typedArray.buffer, 1, 1);
    const otherArray = new Uint8Array(clonedBuffer);
    assert_equals(otherArray.byteLength, 1);
    assert_equals(otherArray.byteOffset, 0);
    assert_equals(otherArray.buffer.byteLength, 1);
    assert_equals(otherArray[0], 5);
    // Check that when typedArray is modified, otherArray is not modified.
    typedArray[1] = 0;
    assert_equals(otherArray[0], 5);
}, "Test cloneArrayBuffer implementation");
</script>