test262/test/built-ins/ArrayBuffer/init-zero.js

36 lines
1.2 KiB
JavaScript

// 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-arraybuffer-length
es6id: 24.1.1.1
description: All bytes are initialized to zero
info: |
[...]
5. Return ? AllocateArrayBuffer(NewTarget, byteLength).
24.1.1.1 AllocateArrayBuffer
3. Let block be ? CreateByteDataBlock(byteLength).
6.2.6.1 CreateByteDataBlock
1. Assert: size≥0.
2. Let db be a new Data Block value consisting of size bytes. If it is
impossible to create such a Data Block, throw a RangeError exception.
3. Set all of the bytes of db to 0.
4. Return db.
features: [DataView]
---*/
var view = new DataView(new ArrayBuffer(9));
assert.sameValue(view.getUint8(0), 0, 'index 0');
assert.sameValue(view.getUint8(1), 0, 'index 1');
assert.sameValue(view.getUint8(2), 0, 'index 2');
assert.sameValue(view.getUint8(3), 0, 'index 3');
assert.sameValue(view.getUint8(4), 0, 'index 4');
assert.sameValue(view.getUint8(5), 0, 'index 5');
assert.sameValue(view.getUint8(6), 0, 'index 6');
assert.sameValue(view.getUint8(7), 0, 'index 7');
assert.sameValue(view.getUint8(8), 0, 'index 8');