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99 lines
2.4 KiB
JavaScript
99 lines
2.4 KiB
JavaScript
/*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation.
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* All Rights Reserved.
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*
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* Contributor(s): pschwartau@netscape.com
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* Date: 27 September 2001
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*
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* SUMMARY: Performance: truncating even very large arrays should be fast!
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* See http://bugzilla.mozilla.org/show_bug.cgi?id=101964
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*
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* Adjust this testcase if necessary. The FAST constant defines
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* an upper bound in milliseconds for any truncation to take.
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*/
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//-----------------------------------------------------------------------------
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var UBound = 0;
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var bug = 101964;
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var summary = 'Performance: truncating even very large arrays should be fast!';
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var BIG = 10000000;
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var LITTLE = 10;
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var FAST = 50; // array truncation should be 50 ms or less to pass the test
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var MSG_FAST = 'Truncation took less than ' + FAST + ' ms';
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var MSG_SLOW = 'Truncation took ';
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var MSG_MS = ' ms';
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var status = '';
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var statusitems = [];
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var actual = '';
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var actualvalues = [];
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var expect= '';
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var expectedvalues = [];
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status = inSection(1);
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var arr = Array(BIG);
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var start = new Date();
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arr.length = LITTLE;
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actual = elapsedTime(start);
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expect = FAST;
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addThis();
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//-----------------------------------------------------------------------------
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test();
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//-----------------------------------------------------------------------------
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function elapsedTime(startTime)
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{
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return new Date() - startTime;
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}
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function addThis()
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{
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statusitems[UBound] = status;
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actualvalues[UBound] = isThisFast(actual);
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expectedvalues[UBound] = isThisFast(expect);
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UBound++;
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}
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function isThisFast(ms)
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{
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if (ms <= FAST)
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return MSG_FAST;
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return MSG_SLOW + ms + MSG_MS;
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}
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function test()
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{
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enterFunc ('test');
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printBugNumber (bug);
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printStatus (summary);
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for (var i=0; i<UBound; i++)
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{
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reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
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}
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exitFunc ('test');
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}
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