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      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:          15.9.5.3.js
     24     ECMA Section: 15.9.5.3 Date.prototype.toDateString()
     25     Description:
     26     This function returns a string value. The contents of the string are
     27     implementation dependent, but are intended to represent the "date"
     28     portion of the Date in the current time zone in a convenient,
     29     human-readable form.   We can't test the content of the string,
     30     but can verify that the string is parsable by Date.parse
     31 
     32     The toDateString function is not generic; it generates a runtime error
     33     if its 'this' value is not a Date object. Therefore it cannot be transferred
     34     to other kinds of objects for use as a method.
     35 
     36     Author:  pschwartau (at) netscape.com
     37     Date:      14 november 2000  (adapted from ecma/Date/15.9.5.2.js)
     38 */
     39 
     40    var SECTION = "15.9.5.3";
     41    var VERSION = "ECMA_3";
     42    var TITLE   = "Date.prototype.toDateString()";
     43 
     44    var status = '';
     45    var actual = '';
     46    var expect = '';
     47 
     48 
     49    startTest();
     50    writeHeaderToLog( SECTION + " "+ TITLE);
     51 
     52 
     53 //-----------------------------------------------------------------------------------------------------
     54    var testcases = new Array();
     55 //-----------------------------------------------------------------------------------------------------
     56 
     57 
     58    // first, some generic tests -
     59 
     60    status = "typeof (now.toDateString())";
     61    actual =   typeof (now.toDateString());
     62    expect = "string";
     63    addTestCase();
     64 
     65    status = "Date.prototype.toDateString.length";
     66    actual =  Date.prototype.toDateString.length;
     67    expect =  0;
     68    addTestCase();
     69 
     70    /* Date.parse is accurate to the second;  valueOf() to the millisecond.
     71         Here we expect them to coincide, as we expect a time of exactly midnight -  */
     72    status = "(Date.parse(now.toDateString()) - (midnight(now)).valueOf()) == 0";
     73    actual =   (Date.parse(now.toDateString()) - (midnight(now)).valueOf()) == 0;
     74    expect = true;
     75    addTestCase();
     76 
     77 
     78 
     79    // 1970
     80    addDateTestCase(0);
     81    addDateTestCase(TZ_ADJUST);
     82 
     83 
     84    // 1900
     85    addDateTestCase(TIME_1900);
     86    addDateTestCase(TIME_1900 - TZ_ADJUST);
     87 
     88 
     89    // 2000
     90    addDateTestCase(TIME_2000);
     91    addDateTestCase(TIME_2000 - TZ_ADJUST);
     92 
     93 
     94    // 29 Feb 2000
     95    addDateTestCase(UTC_29_FEB_2000);
     96    addDateTestCase(UTC_29_FEB_2000 - 1000);
     97    addDateTestCase(UTC_29_FEB_2000 - TZ_ADJUST);
     98 
     99 
    100    // 2005
    101    addDateTestCase(UTC_1_JAN_2005);
    102    addDateTestCase(UTC_1_JAN_2005 - 1000);
    103    addDateTestCase(UTC_1_JAN_2005 - TZ_ADJUST);
    104 
    105 
    106 
    107 //-----------------------------------------------------------------------------------------------------
    108    test();
    109 //-----------------------------------------------------------------------------------------------------
    110 
    111 
    112 function addTestCase()
    113 {
    114   testcases[tc++] = new TestCase( SECTION, status, expect, actual);
    115 }
    116 
    117 
    118 function addDateTestCase(date_given_in_milliseconds)
    119 {
    120   var givenDate = new Date(date_given_in_milliseconds);
    121 
    122   status = 'Date.parse('   +   givenDate   +   ').toDateString())';
    123   actual =  Date.parse(givenDate.toDateString());
    124   expect = Date.parse(midnight(givenDate));
    125   addTestCase();
    126 }
    127 
    128 
    129 function midnight(givenDate)
    130 {
    131   // midnight on the given date -
    132   return new Date(givenDate.getFullYear(), givenDate.getMonth(), givenDate.getDate());
    133 }
    134 
    135 
    136 function test()
    137 {
    138   for ( tc=0; tc < testcases.length; tc++ )
    139   {
    140     testcases[tc].passed = writeTestCaseResult(
    141                                                testcases[tc].expect,
    142                                                testcases[tc].actual,
    143                                                testcases[tc].description  +  " = "  +  testcases[tc].actual );
    144 
    145     testcases[tc].reason += ( testcases[tc].passed ) ? "" : "wrong value ";
    146   }
    147   stopTest();
    148   return (testcases);
    149 }