tests/mozilla/ecma_2/Exceptions/number-002.js

   1 /**
   2     File Name:          number-002.js
   3     Corresponds To:     ecma/Number/15.7.4.3-2-n.js
   4     ECMA Section:       15.7.4.3.1 Number.prototype.valueOf()
   5     Description:
   6     Returns this number value.
   7
   8     The valueOf function is not generic; it generates a runtime error if its
   9     this value is not a Number object. Therefore it cannot be transferred to
  10     other kinds of objects for use as a method.
  11
  12     Author:             christine@netscape.com
  13     Date:               16 september 1997
  14 */
  15     var SECTION = "number-002";
  16     var VERSION = "JS1_4";
  17     var TITLE   = "Exceptions for Number.valueOf()";
  18
  19     startTest();
  20     writeHeaderToLog( SECTION + " Number.prototype.valueOf()");
  21
  22     var testcases = new Array();
  23     var tc = 0;
  24
  25     var result = "Failed";
  26     var exception = "No exception thrown";
  27     var expect = "Passed";
  28
  29     try {
  30         object= new Object();
  31         object.toString = Number.prototype.valueOf;
  32         result = object.toString();
  33     } catch ( e ) {
  34         result = expect;
  35         exception = e.toString();
  36     }
  37
  38     testcases[tc++] = new TestCase(
  39         SECTION,
  40         "object = new Object(); object.valueOf = Number.prototype.valueOf; object.valueOf()" +
  41         " (threw " + exception +")",
  42         expect,
  43         result );
  44
  45     test();