gecko/js/tests/ecma_2/Exceptions/date-003.js

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/**
   File Name:          date-003.js
   Corresponds To      15.9.5.3-1.js
   ECMA Section:       15.9.5.3-1 Date.prototype.valueOf
   Description:

   The valueOf function returns a number, which is this time value.

   The valueOf 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 = "date-003";
var VERSION = "JS1_4";
var TITLE   = "Date.prototype.valueOf";

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

var result = "Failed";
var exception = "No exception thrown";
var expect = "Passed";

try {
  var OBJ = new MyObject( new Date(0) );
  result = OBJ.valueOf();
} catch ( e ) {
  result = expect;
  exception = e.toString();
}

new TestCase(
  SECTION,
  "OBJ = new MyObject( new Date(0)); OBJ.valueOf()" +
  " (threw " + exception +")",
  expect,
  result );

test();

function MyObject( value ) {
  this.value = value;
  this.valueOf = Date.prototype.valueOf;
//  The following line causes an infinte loop
//    this.toString = new Function( "return this+\"\";");
  return this;
}