deps/v8/test/webkit/array-iterate-backwards.js - main - githubmirror/node

deps/v8/test/webkit/array-iterate-backwards.js
55 строк2 KB
Ben Noordhuis
v8: upgrade to v3.20.2
06 июл 2013, 18:53
06 июл 2013, 18:53704fd8f
// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1.  Redistributions of source code must retain the above copyright
//     notice, this list of conditions and the following disclaimer.
// 2.  Redistributions in binary form must reproduce the above copyright
//     notice, this list of conditions and the following disclaimer in the
//     documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

description(
"This test checks that iterating a large array backwards works correctly."
);

var bytes = new Array();

function prepare(nbytes) {
    var i = nbytes - 1;
    while (i >= 0) {
        bytes[i] = new Number(i);
        i -= 1;
    }
}

function verify(nbytes) {
    var i = nbytes - 1;
    while (i >= 0) {
        if (bytes[i] != i)
            return false;
        i -= 1;
    }
    return true;
}

prepare(32768);
shouldBeTrue('verify(32768)');

prepare(65536);
shouldBeTrue('verify(65536)');

prepare(120000);
shouldBeTrue('verify(120000)');