tor-browser

The Tor Browser
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15.9.5.5.js (4048B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* This Source Code Form is subject to the terms of the Mozilla Public
      3 * License, v. 2.0. If a copy of the MPL was not distributed with this
      4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      5 
      6 
      7 /**
      8   File Name:          15.9.5.5.js
      9   ECMA Section: 15.9.5.5 Date.prototype.toLocaleString()
     10   Description:
     11   This function returns a string value. The contents of the string are
     12   implementation dependent, but are intended to represent the "date"
     13   portion of the Date in the current time zone in a convenient,
     14   human-readable form.   We can't test the content of the string, 
     15   but can verify that the string is parsable by Date.parse
     16 
     17   The toLocaleString function is not generic; it generates a runtime error
     18   if its 'this' value is not a Date object. Therefore it cannot be transferred
     19   to other kinds of objects for use as a method.
     20 
     21   Note: This test isn't supposed to work with a non-English locale per spec.
     22 
     23   Author:  pschwartau@netscape.com
     24   Date:      14 november 2000
     25 */
     26 
     27 var SECTION = "15.9.5.5";
     28 var TITLE   = "Date.prototype.toLocaleString()"; 
     29  
     30 var status = '';
     31 var actual = ''; 
     32 var expect = '';
     33 
     34 
     35 writeHeaderToLog( SECTION + " "+ TITLE);
     36 
     37 var now = new Date();
     38 
     39 // first, some generic tests -
     40 
     41 status = "typeof (now.toLocaleString())"; 
     42 actual =   typeof (now.toLocaleString());
     43 expect = "string";
     44 addTestCase();
     45 
     46 status = "Date.prototype.toLocaleString.length";  
     47 actual =  Date.prototype.toLocaleString.length;
     48 expect =  0;  
     49 addTestCase();
     50 
     51 // Date.parse is accurate to the second;  valueOf() to the millisecond  -
     52 status = "Math.abs(Date.parse(now.toLocaleString('en-US')) - now.valueOf()) < 1000 + (!isRepeatedTime(now) ? 0 : msPerHour)";
     53 actual =  Math.abs(Date.parse(now.toLocaleString('en-US')) - now.valueOf()) < 1000 + (!isRepeatedTime(now) ? 0 : msPerHour);
     54 expect = true;
     55 addTestCase();
     56 
     57 
     58 // Test with repeated and skipped time due to daylight saving time.
     59 for (var date of [
     60   // Switch from standard time to daylight saving time for PST8PDT.
     61   new Date(Date.parse("2025-11-02T08:00:00Z")),
     62   new Date(Date.parse("2025-11-02T09:00:00Z")),
     63 
     64   // Switch from daylight saving time to standard time for PST8PDT.
     65   new Date(Date.parse("2025-03-09T09:00:00Z")),
     66   new Date(Date.parse("2025-03-09T10:00:00Z")),
     67 ]) {
     68   status = "Math.abs(Date.parse(date.toLocaleString('en-US')) - date.valueOf()) < 1000 + (!isRepeatedTime(date) ? 0 : msPerHour)";
     69   actual =  Math.abs(Date.parse(date.toLocaleString('en-US')) - date.valueOf()) < 1000 + (!isRepeatedTime(date) ? 0 : msPerHour);
     70   expect = true;
     71   addTestCase();
     72 }
     73 
     74 
     75 // 1970
     76 addDateTestCase(0);
     77 addDateTestCase(TZ_ADJUST);  
     78 
     79  
     80 // 1900
     81 addDateTestCase(UTC_01_JAN_1900);
     82 addDateTestCase(UTC_01_JAN_1900 -TZ_ADJUST);
     83 
     84  
     85 // 2000
     86 addDateTestCase(UTC_01_JAN_2000);
     87 addDateTestCase(UTC_01_JAN_2000 -TZ_ADJUST);
     88 
     89   
     90 // 29 Feb 2000
     91 addDateTestCase(UTC_29_FEB_2000);
     92 addDateTestCase(UTC_29_FEB_2000 - 1000);   
     93 addDateTestCase(UTC_29_FEB_2000 - TZ_ADJUST);
     94 
     95 
     96 // 2005
     97 addDateTestCase(UTC_01_JAN_2005);
     98 addDateTestCase(UTC_01_JAN_2005 - 1000);
     99 addDateTestCase(UTC_01_JAN_2005-TZ_ADJUST);
    100  
    101 
    102 
    103 //-----------------------------------------------------------------------------------------------------
    104 test();
    105 //-----------------------------------------------------------------------------------------------------
    106 
    107 
    108 function addTestCase()
    109 {
    110  AddTestCase(
    111    status,
    112    expect,
    113    actual);
    114 }
    115 
    116 
    117 function addDateTestCase(date_given_in_milliseconds)
    118 {
    119  var givenDate = new Date(date_given_in_milliseconds);
    120 
    121  status = 'Date.parse('   +   givenDate   +   ').toLocaleString("en-US"))';
    122  actual =  Date.parse(givenDate.toLocaleString("en-US"));
    123  expect = date_given_in_milliseconds;
    124  addTestCase();
    125 }
    126 
    127 
    128 // Repeated local time when switching from daylight saving time to standard time.
    129 function isRepeatedTime(date)
    130 {
    131   var offset1 = date.getTimezoneOffset();
    132   var offset2 = new Date(date.valueOf() - msPerHour).getTimezoneOffset();
    133   return offset1 > offset2;
    134 }