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88 lines
2.2 KiB
JavaScript
88 lines
2.2 KiB
JavaScript
// Copyright (C) 2016 The V8 Project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-arraybuffer-length
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description: >
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The `length` parameter is converted to a value numeric index value.
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info: |
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ArrayBuffer( length )
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1. If NewTarget is undefined, throw a TypeError exception.
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2. Let byteLength be ? ToIndex(length).
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3. Return ? AllocateArrayBuffer(NewTarget, byteLength).
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ToIndex( value )
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1. If value is undefined, then
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a. Let index be 0.
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2. Else,
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a. Let integerIndex be ? ToInteger(value).
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b. If integerIndex < 0, throw a RangeError exception.
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c. Let index be ! ToLength(integerIndex).
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d. If SameValueZero(integerIndex, index) is false, throw a RangeError exception.
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3. Return index.
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---*/
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var obj1 = {
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valueOf: function() {
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return 42;
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}
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};
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var obj2 = {
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toString: function() {
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return 42;
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}
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};
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var buffer;
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buffer = new ArrayBuffer(obj1);
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assert.sameValue(buffer.byteLength, 42, "object's valueOf");
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buffer = new ArrayBuffer(obj2);
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assert.sameValue(buffer.byteLength, 42, "object's toString");
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buffer = new ArrayBuffer("");
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assert.sameValue(buffer.byteLength, 0, "the Empty string");
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buffer = new ArrayBuffer("0");
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assert.sameValue(buffer.byteLength, 0, "string '0'");
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buffer = new ArrayBuffer("1");
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assert.sameValue(buffer.byteLength, 1, "string '1'");
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buffer = new ArrayBuffer(true);
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assert.sameValue(buffer.byteLength, 1, "true");
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buffer = new ArrayBuffer(false);
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assert.sameValue(buffer.byteLength, 0, "false");
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buffer = new ArrayBuffer(NaN);
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assert.sameValue(buffer.byteLength, 0, "NaN");
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buffer = new ArrayBuffer(null);
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assert.sameValue(buffer.byteLength, 0, "null");
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buffer = new ArrayBuffer(undefined);
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assert.sameValue(buffer.byteLength, 0, "undefined");
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buffer = new ArrayBuffer(0.1);
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assert.sameValue(buffer.byteLength, 0, "0.1");
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buffer = new ArrayBuffer(0.9);
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assert.sameValue(buffer.byteLength, 0, "0.9");
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buffer = new ArrayBuffer(1.1);
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assert.sameValue(buffer.byteLength, 1, "1.1");
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buffer = new ArrayBuffer(1.9);
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assert.sameValue(buffer.byteLength, 1, "1.9");
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buffer = new ArrayBuffer(-0.1);
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assert.sameValue(buffer.byteLength, 0, "-0.1");
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buffer = new ArrayBuffer(-0.99999);
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assert.sameValue(buffer.byteLength, 0, "-0.99999");
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