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40 File Name: 15.9.5.3.js
41 ECMA Section: 15.9.5.3 Date.prototype.toDateString()
43 This function returns a string value. The contents of the string are
44 implementation dependent, but are intended to represent the "date"
45 portion of the Date in the current time zone in a convenient,
46 human-readable form. We can't test the content of the string,
47 but can verify that the string is parsable by Date.parse
49 The toDateString function is not generic; it generates a runtime error
50 if its 'this' value is not a Date object. Therefore it cannot be transferred
51 to other kinds of objects for use as a method.
53 Author: pschwartau@netscape.com
54 Date: 14 november 2000 (adapted from ecma/Date/15.9.5.2.js)
57 var SECTION = "15.9.5.3";
58 var VERSION = "ECMA_3";
59 var TITLE = "Date.prototype.toDateString()";
67 writeHeaderToLog( SECTION + " "+ TITLE);
69 // first, some generic tests -
71 status = "typeof (now.toDateString())";
72 actual = typeof (now.toDateString());
76 status = "Date.prototype.toDateString.length";
77 actual = Date.prototype.toDateString.length;
82 * Date.parse is accurate to the second; valueOf() to the millisecond.
83 * Here we expect them to coincide, as we expect a time of exactly
86 status = "(Date.parse(now.toDateString()) - (midnight(now)).valueOf()) == 0";
87 actual = (Date.parse(now.toDateString()) - (midnight(now)).valueOf()) == 0;
95 addDateTestCase(TZ_ADJUST);
99 addDateTestCase(TIME_1900);
100 addDateTestCase(TIME_1900 - TZ_ADJUST);
104 addDateTestCase(TIME_2000);
105 addDateTestCase(TIME_2000 - TZ_ADJUST);
109 addDateTestCase(UTC_29_FEB_2000);
110 addDateTestCase(UTC_29_FEB_2000 - 1000);
111 addDateTestCase(UTC_29_FEB_2000 - TZ_ADJUST);
115 addDateTestCase(UTC_1_JAN_2005);
116 addDateTestCase(UTC_1_JAN_2005 - 1000);
117 addDateTestCase(UTC_1_JAN_2005 - TZ_ADJUST);
121 //-----------------------------------------------------------------------------
123 //-----------------------------------------------------------------------------
126 function addTestCase()
135 function addDateTestCase(date_given_in_milliseconds)
137 var givenDate = new Date(date_given_in_milliseconds);
139 status = 'Date.parse(' + givenDate + ').toDateString())';
140 actual = Date.parse(givenDate.toDateString());
141 expect = Date.parse(midnight(givenDate));
146 function midnight(givenDate)
148 // midnight on the given date -
149 return new Date(givenDate.getFullYear(), givenDate.getMonth(), givenDate.getDate());