ecma_3/Date/15.9.5.7.js

/* The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Mozilla Communicator client code, released March
 * 31, 1998.
 *
 * The Initial Developer of the Original Code is Netscape Communications
 * Corporation. Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s):
 *
 */
/**
    File Name:    15.9.5.7.js
    ECMA Section: 15.9.5.7 Date.prototype.toLocaleTimeString()
    Description:
    This function returns a string value. The contents of the string are
    implementation dependent, but are intended to represent the "time"
    portion of the Date in the current time zone in a convenient,
    human-readable form.   We test the content of the string by checking
    that d.toDateString()  +  d.toLocaleTimeString()  ==  d.toString()

    The only headache is that as of this writing the "GMT ..."  portion of
    d.toString() is NOT included in d.toLocaleTimeString() as it is in
    d.toTimeString(). So we have to take that into account.

    Author:  pschwartau (at) netscape.com
    Date:    14 november 2000
    Revised: 07 january 2002  because of a change in JS Date format:

    See http://bugzilla.mozilla.org/show_bug.cgi?id=118266 (SpiderMonkey)
    See http://bugzilla.mozilla.org/show_bug.cgi?id=118636 (Rhino)
*/
//-----------------------------------------------------------------------------
   var SECTION = "15.9.5.7";
   var VERSION = "ECMA_3";
   var TITLE   = "Date.prototype.toLocaleTimeString()";

   var status = '';
   var actual = '';
   var expect = '';
   var givenDate;
   var year = '';
   var regexp = '';
   var TimeString = '';
   var reducedDateString = '';
   var hopeThisIsLocaleTimeString = '';
   var cnERR ='OOPS! FATAL ERROR: no regexp match in extractLocaleTimeString()';


   startTest();
   writeHeaderToLog( SECTION + " "+ TITLE);


//-----------------------------------------------------------------------------------------------------
   var testcases = new Array();
//-----------------------------------------------------------------------------------------------------


   // first, a couple generic tests -

   status = "typeof (now.toLocaleTimeString())";
   actual =   typeof (now.toLocaleTimeString());
   expect = "string";
   addTestCase();

   status = "Date.prototype.toLocaleTimeString.length";
   actual =  Date.prototype.toLocaleTimeString.length;
   expect =  0;
   addTestCase();


   // 1970
   addDateTestCase(0);
   addDateTestCase(TZ_ADJUST);


   // 1900
   addDateTestCase(TIME_1900);
   addDateTestCase(TIME_1900 - TZ_ADJUST);


   // 2000
   addDateTestCase(TIME_2000);
   addDateTestCase(TIME_2000 - TZ_ADJUST);


   // 29 Feb 2000
   addDateTestCase(UTC_29_FEB_2000);
   addDateTestCase(UTC_29_FEB_2000 - 1000);
   addDateTestCase(UTC_29_FEB_2000 - TZ_ADJUST);


   // Now
   addDateTestCase( TIME_NOW);
   addDateTestCase( TIME_NOW - TZ_ADJUST);


   // 2005
   addDateTestCase(UTC_1_JAN_2005);
   addDateTestCase(UTC_1_JAN_2005 - 1000);
   addDateTestCase(UTC_1_JAN_2005 - TZ_ADJUST);


//-----------------------------------------------------------------------------------------------------
   test();
//-----------------------------------------------------------------------------------------------------


function addTestCase()
{
  testcases[tc++] = new TestCase( SECTION, status, expect, actual);
}


function addDateTestCase(date_given_in_milliseconds)
{
   givenDate = new Date(date_given_in_milliseconds);

   status = '('  +  givenDate  +  ').toLocaleTimeString()';
   actual = givenDate.toLocaleTimeString();
   expect = extractLocaleTimeString(givenDate);
   addTestCase();
}


/*
 * As of 2002-01-07, the format for JavaScript dates changed.
 * See http://bugzilla.mozilla.org/show_bug.cgi?id=118266 (SpiderMonkey)
 * See http://bugzilla.mozilla.org/show_bug.cgi?id=118636 (Rhino)
 *
 * WAS: Mon Jan 07 13:40:34 GMT-0800 (Pacific Standard Time) 2002
 * NOW: Mon Jan 07 2002 13:40:34 GMT-0800 (Pacific Standard Time)
 *
 * So first, use a regexp of the form /date.toDateString()(.*)$/
 * to capture the TimeString into the first backreference.
 *
 * Then remove the GMT string from TimeString (see introduction above)
 */
function extractLocaleTimeString(date)
{
  regexp = new RegExp(date.toDateString() + '(.*)' + '$');
  try
  {
    TimeString = date.toString().match(regexp)[1];
  }
  catch(e)
  {
    return cnERR;
  }

  /*
   * Now remove the GMT part of the TimeString.
   * Guard against dates with two "GMT"s, like:
   * Jan 01 00:00:00 GMT+0000 (GMT Standard Time)
   */
  regexp= /([^G]*)GMT.*/;
  try
  {
    hopeThisIsLocaleTimeString = TimeString.match(regexp)[1];
  }
  catch(e)
  {
    return TimeString;
  }

  // trim any leading or trailing spaces -
  return trimL(trimR(hopeThisIsLocaleTimeString));
}


function trimL(s)
{
  if (!s) {return cnEmptyString;};
  for (var i = 0; i!=s.length; i++) {if (s[i] != ' ') {break;}}
  return s.substring(i);
}

function trimR(s)
{
  for (var i = (s.length - 1); i!=-1; i--) {if (s[i] != ' ') {break;}}
  return s.substring(0, i+1);
}


function test()
{
  for ( tc=0; tc < testcases.length; tc++ )
  {
    testcases[tc].passed = writeTestCaseResult(
                                               testcases[tc].expect,
                                               testcases[tc].actual,
                                               testcases[tc].description  +  " = "  +  testcases[tc].actual );

    testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
  }
  stopTest();
  return (testcases);
}