mirror of https://github.com/tc39/test262.git
88 lines
2.2 KiB
JavaScript
Executable File
88 lines
2.2 KiB
JavaScript
Executable File
// 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
|
|
description: >
|
|
The `length` parameter is converted to a value numeric index value.
|
|
info: |
|
|
ArrayBuffer( length )
|
|
|
|
1. If NewTarget is undefined, throw a TypeError exception.
|
|
2. Let byteLength be ? ToIndex(length).
|
|
3. Return ? AllocateArrayBuffer(NewTarget, byteLength).
|
|
|
|
ToIndex( value )
|
|
|
|
1. If value is undefined, then
|
|
a. Let index be 0.
|
|
2. Else,
|
|
a. Let integerIndex be ? ToInteger(value).
|
|
b. If integerIndex < 0, throw a RangeError exception.
|
|
c. Let index be ! ToLength(integerIndex).
|
|
d. If SameValueZero(integerIndex, index) is false, throw a RangeError exception.
|
|
3. Return index.
|
|
---*/
|
|
|
|
var obj1 = {
|
|
valueOf: function() {
|
|
return 42;
|
|
}
|
|
};
|
|
|
|
var obj2 = {
|
|
toString: function() {
|
|
return 42;
|
|
}
|
|
};
|
|
|
|
var buffer;
|
|
|
|
buffer = new ArrayBuffer(obj1);
|
|
assert.sameValue(buffer.byteLength, 42, "object's valueOf");
|
|
|
|
buffer = new ArrayBuffer(obj2);
|
|
assert.sameValue(buffer.byteLength, 42, "object's toString");
|
|
|
|
buffer = new ArrayBuffer("");
|
|
assert.sameValue(buffer.byteLength, 0, "the Empty string");
|
|
|
|
buffer = new ArrayBuffer("0");
|
|
assert.sameValue(buffer.byteLength, 0, "string '0'");
|
|
|
|
buffer = new ArrayBuffer("1");
|
|
assert.sameValue(buffer.byteLength, 1, "string '1'");
|
|
|
|
buffer = new ArrayBuffer(true);
|
|
assert.sameValue(buffer.byteLength, 1, "true");
|
|
|
|
buffer = new ArrayBuffer(false);
|
|
assert.sameValue(buffer.byteLength, 0, "false");
|
|
|
|
buffer = new ArrayBuffer(NaN);
|
|
assert.sameValue(buffer.byteLength, 0, "NaN");
|
|
|
|
buffer = new ArrayBuffer(null);
|
|
assert.sameValue(buffer.byteLength, 0, "null");
|
|
|
|
buffer = new ArrayBuffer(undefined);
|
|
assert.sameValue(buffer.byteLength, 0, "undefined");
|
|
|
|
buffer = new ArrayBuffer(0.1);
|
|
assert.sameValue(buffer.byteLength, 0, "0.1");
|
|
|
|
buffer = new ArrayBuffer(0.9);
|
|
assert.sameValue(buffer.byteLength, 0, "0.9");
|
|
|
|
buffer = new ArrayBuffer(1.1);
|
|
assert.sameValue(buffer.byteLength, 1, "1.1");
|
|
|
|
buffer = new ArrayBuffer(1.9);
|
|
assert.sameValue(buffer.byteLength, 1, "1.9");
|
|
|
|
buffer = new ArrayBuffer(-0.1);
|
|
assert.sameValue(buffer.byteLength, 0, "-0.1");
|
|
|
|
buffer = new ArrayBuffer(-0.99999);
|
|
assert.sameValue(buffer.byteLength, 0, "-0.99999");
|