test262/test/built-ins/DataView/byteoffset-tonumber-diffs-t...

44 lines
1.0 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.
/*---
es6id: 24.2.2.1
esid: sec-dataview-buffer-byteoffset-bytelength
description: >
Throws a RangeError if ToNumber(byteOffset) diffs ToInteger(byteOffset)
info: |
24.2.2.1 DataView (buffer, byteOffset, byteLength )
...
4. Let numberOffset be ? ToNumber(byteOffset).
5. Let offset be ToInteger(numberOffset).
6. If numberOffset ≠ offset or offset < 0, throw a RangeError exception.
...
---*/
var ab = new ArrayBuffer(42);
assert.throws(RangeError, function() {
new DataView(ab, 1.1);
}, "1.1");
assert.throws(RangeError, function() {
new DataView(ab, 0.0000001);
}, "0.0000001");
assert.throws(RangeError, function() {
new DataView(ab, NaN);
}, "NaN");
assert.throws(RangeError, function() {
new DataView(ab, -1.1);
}, "-1.1");
assert.throws(RangeError, function() {
new DataView(ab, undefined);
}, "undefined");
assert.throws(RangeError, function() {
new DataView(ab);
}, "no byteOffset arg");