test262/test/built-ins/DataView/return-instance.js

29 lines
850 B
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-dataview-buffer-byteoffset-bytelength
description: >
Returns new instance
info: |
24.2.2.1 DataView (buffer, byteOffset, byteLength )
...
12. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DataViewPrototype%",
« [[DataView]], [[ViewedArrayBuffer]], [[ByteLength]], [[ByteOffset]] »).
...
17. Return O.
---*/
var ab, sample;
ab = new ArrayBuffer(1);
sample = new DataView(ab, 0);
assert.sameValue(sample.constructor, DataView);
assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);
ab = new ArrayBuffer(1);
sample = new DataView(ab, 1);
assert.sameValue(sample.constructor, DataView);
assert.sameValue(Object.getPrototypeOf(sample), DataView.prototype);