51 lines
2.1 KiB
JavaScript
51 lines
2.1 KiB
JavaScript
|
// 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 tests some sparse array operations.'
|
||
|
|
);
|
||
|
|
|
||
|
|
var array = [ ];
|
||
|
|
|
||
|
|
array[50000] = 100;
|
||
|
|
|
||
|
|
shouldBe('array[0]', 'undefined');
|
||
|
|
shouldBe('array[49999]', 'undefined');
|
||
|
|
shouldBe('array[50000]', '100');
|
||
|
|
shouldBe('array[50001]', 'undefined');
|
||
|
|
array[0]++;
|
||
|
|
shouldBe('array[0]', 'NaN');
|
||
|
|
shouldBe('array[49999]', 'undefined');
|
||
|
|
shouldBe('array[50000]', '100');
|
||
|
|
shouldBe('array[50001]', 'undefined');
|
||
|
|
// This tests oscillation between being sparse and dense.
|
||
|
|
delete array[50000];
|
||
|
|
array.length = 5;
|
||
|
|
array[50000] = 100;
|
||
|
|
shouldBe('array[0]', 'NaN');
|
||
|
|
shouldBe('array[49999]', 'undefined');
|
||
|
|
shouldBe('array[50000]', '100');
|
||
|
|
shouldBe('array[50001]', 'undefined');
|
||
|
|
|
||
|
|
debug('');
|