tests/mozilla/ecma/Date/15.9.1.1-2.js

   1 /* The contents of this file are subject to the Netscape Public
   2  * License Version 1.1 (the "License"); you may not use this file
   3  * except in compliance with the License. You may obtain a copy of
   4  * the License at http://www.mozilla.org/NPL/
   5  *
   6  * Software distributed under the License is distributed on an "AS
   7  * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
   8  * implied. See the License for the specific language governing
   9  * rights and limitations under the License.
  10  *
  11  * The Original Code is Mozilla Communicator client code, released March
  12  * 31, 1998.
  13  *
  14  * The Initial Developer of the Original Code is Netscape Communications
  15  * Corporation. Portions created by Netscape are
  16  * Copyright (C) 1998 Netscape Communications Corporation. All
  17  * Rights Reserved.
  18  *
  19  * Contributor(s):
  20  *
  21  */
  22 /**
  23     File Name:          15.9.1.1-2.js
  24     ECMA Section:       15.9.1.1 Time Range
  25      Description:
  26                             - leap seconds are ignored
  27                             - assume 86400000 ms / day
  28                             - numbers range fom +/- 9,007,199,254,740,991
  29                             - ms precision for any instant that is within
  30                               approximately +/-285,616 years from 1 jan 1970
  31                               UTC
  32                             - range of times supported is -100,000,000 days
  33                               to 100,000,000 days from 1 jan 1970 12:00 am
  34                             - time supported is 8.64e5*10e8 milliseconds from
  35                               1 jan 1970 UTC  (+/-273972.6027397 years)
  36     Author:             christine@netscape.com
  37     Date:               9 july 1997
  38 */
  39
  40 function test() {
  41
  42     writeHeaderToLog("15.9.1.1 Time Range");
  43
  44     for (       M_SECS = 0, CURRENT_YEAR = 1970;
  45                 M_SECS > -8640000000000000;
  46                 tc++,   M_SECS -= FOUR_HUNDRED_YEARS, CURRENT_YEAR -= 400 ) {
  47
  48         testcases[tc] = new TestCase( SECTION, "new Date("+M_SECS+")", CURRENT_YEAR, (new Date( M_SECS )).getUTCFullYear() );
  49
  50         testcases[tc].passed =  writeTestCaseResult(
  51                                 testcases[tc].expect,
  52                                 testcases[tc].actual,
  53                                 testcases[tc].description + " = " +
  54                                 testcases[tc].actual );
  55
  56         if ( ! testcases[tc].passed ) {
  57             testcases[tc].reason = "wrong year value";
  58         }
  59     }
  60
  61     stopTest();
  62
  63     return ( testcases );
  64 }
  65     //  every one hundred years contains:
  66     //    24 years with 366 days
  67     //
  68     //  every four hundred years contains:
  69     //    97 years with 366 days
  70     //   303 years with 365 days
  71     //
  72     //   86400000*366*97  =    3067372800000
  73     //  +86400000*365*303 =  + 9555408000000
  74     //                    =    1.26227808e+13
  75
  76     var FOUR_HUNDRED_YEARS = 1.26227808e+13;
  77     var SECTION         =  "15.9.1.1-2";
  78     var tc              = 0;
  79     var testcases       = new Array();
  80
  81     test();
  82