gecko-dev/js/tests/ecma/Date/15.9.5.2.js

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/**
   File Name:          15.9.5.2.js
   ECMA Section:       15.9.5.2 Date.prototype.toString
   Description:
   This function returns a string value. The contents of the string are
   implementation dependent, but are intended to represent the Date in a
   convenient, human-readable form in the current time zone.

   The toString function is not generic; it generates a runtime error if its
   this value is not a Date object. Therefore it cannot be transferred to
   other kinds of objects for use as a method.

   Author:             christine@netscape.com
   Date:               12 november 1997
*/

var SECTION = "15.9.5.2";
var VERSION = "ECMA_1";
startTest();
var TITLE   = "Date.prototype.toString";

writeHeaderToLog( SECTION + " "+ TITLE);

new TestCase( SECTION,
	      "Date.prototype.toString.length",
	      0,
	      Date.prototype.toString.length );

var now = new Date();

// can't test the content of the string, but can verify that the string is
// parsable by Date.parse

new TestCase( SECTION,
	      "Math.abs(Date.parse(now.toString()) - now.valueOf()) < 1000",
	      true,
	      Math.abs(Date.parse(now.toString()) - now.valueOf()) < 1000 );

new TestCase( SECTION,
	      "typeof now.toString()",
	      "string",
	      typeof now.toString() );
// 1970

TZ_ADJUST = TZ_DIFF * msPerHour;

new TestCase( SECTION,
	      "Date.parse( (new Date(0)).toString() )",
	      0,
	      Date.parse( (new Date(0)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+TZ_ADJUST+")).toString() )",
	      TZ_ADJUST,
	      Date.parse( (new Date(TZ_ADJUST)).toString() ) );

// 1900
new TestCase( SECTION,
	      "Date.parse( (new Date("+TIME_1900+")).toString() )",
	      TIME_1900,
	      Date.parse( (new Date(TIME_1900)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+TIME_1900 -TZ_ADJUST+")).toString() )",
	      TIME_1900 -TZ_ADJUST,
	      Date.parse( (new Date(TIME_1900 -TZ_ADJUST)).toString() ) );

// 2000
new TestCase( SECTION,
	      "Date.parse( (new Date("+TIME_2000+")).toString() )",
	      TIME_2000,
	      Date.parse( (new Date(TIME_2000)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+TIME_2000 -TZ_ADJUST+")).toString() )",
	      TIME_2000 -TZ_ADJUST,
	      Date.parse( (new Date(TIME_2000 -TZ_ADJUST)).toString() ) );

// 29 Feb 2000

var UTC_29_FEB_2000 = TIME_2000 + 31*msPerDay + 28*msPerDay;
new TestCase( SECTION,
	      "Date.parse( (new Date("+UTC_29_FEB_2000+")).toString() )",
	      UTC_29_FEB_2000,
	      Date.parse( (new Date(UTC_29_FEB_2000)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+(UTC_29_FEB_2000-1000)+")).toString() )",
	      UTC_29_FEB_2000-1000,
	      Date.parse( (new Date(UTC_29_FEB_2000-1000)).toString() ) );


new TestCase( SECTION,
	      "Date.parse( (new Date("+(UTC_29_FEB_2000-TZ_ADJUST)+")).toString() )",
	      UTC_29_FEB_2000-TZ_ADJUST,
	      Date.parse( (new Date(UTC_29_FEB_2000-TZ_ADJUST)).toString() ) );
// 2O05

var UTC_1_JAN_2005 = TIME_2000 + TimeInYear(2000) + TimeInYear(2001) +
TimeInYear(2002) + TimeInYear(2003) + TimeInYear(2004);
new TestCase( SECTION,
	      "Date.parse( (new Date("+UTC_1_JAN_2005+")).toString() )",
	      UTC_1_JAN_2005,
	      Date.parse( (new Date(UTC_1_JAN_2005)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+(UTC_1_JAN_2005-1000)+")).toString() )",
	      UTC_1_JAN_2005-1000,
	      Date.parse( (new Date(UTC_1_JAN_2005-1000)).toString() ) );

new TestCase( SECTION,
	      "Date.parse( (new Date("+(UTC_1_JAN_2005-TZ_ADJUST)+")).toString() )",
	      UTC_1_JAN_2005-TZ_ADJUST,
	      Date.parse( (new Date(UTC_1_JAN_2005-TZ_ADJUST)).toString() ) );

test();