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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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* 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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* The Original Code is Mozilla Communicator client code, released March
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* The Initial Developer of the Original Code is Netscape Communications
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* Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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File Name: 15.9.5.22.js
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ECMA Section: 15.9.5.22
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Description: Date.prototype.getTimezoneOffset
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Returns the difference between local time and UTC time in minutes.
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1. Let t be this time value.
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2. If t is NaN, return NaN.
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3. Return (t - LocalTime(t)) / msPerMinute.
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Author: christine@netscape.com
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Date: 12 november 1997
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var SECTION = "15.9.5.22";
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var VERSION = "ECMA_1";
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var TITLE = "Date.prototype.getTimezoneOffset()";
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writeHeaderToLog( SECTION + " "+ TITLE);
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var testcases = new Array();
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var TZ_ADJUST = TZ_DIFF * msPerHour;
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// get the current time
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var now = (new Date()).valueOf();
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// get time for 29 feb 2000
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var UTC_FEB_29_2000 = TIME_2000 + 31*msPerDay + 28*msPerHour;
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// get time for 1 jan 2005
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var UTC_JAN_1_2005 = TIME_2000 + TimeInYear(2000)+TimeInYear(2001)+
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TimeInYear(2002)+TimeInYear(2003)+TimeInYear(2004);
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addTestCase( TIME_1970 );
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addTestCase( TIME_1900 );
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addTestCase( TIME_2000 );
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addTestCase( UTC_FEB_29_2000 );
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addTestCase( UTC_JAN_1_2005 );
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testcases[tc++] = new TestCase( SECTION,
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"(new Date(NaN)).getTimezoneOffset()",
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(new Date(NaN)).getTimezoneOffset() );
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testcases[tc++] = new TestCase( SECTION,
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"Date.prototype.getTimezoneOffset.length",
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Date.prototype.getTimezoneOffset.length );
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function addTestCase( t ) {
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for ( m = 0; m <= 1000; m+=100 ) {
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testcases[tc++] = new TestCase( SECTION,
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"(new Date("+t+")).getTimezoneOffset()",
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(t - LocalTime(t)) / msPerMinute,
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(new Date(t)).getTimezoneOffset() );
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for ( tc=0; tc < testcases.length; tc++ ) {
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testcases[tc].passed = writeTestCaseResult(
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testcases[tc].description +" = "+
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testcases[tc].actual );
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testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";