tests/mozilla/ecma_2/Exceptions/boolean-001.js

   1 /**
   2     File Name:          boolean-001.js
   3     Description:        Corresponds to ecma/Boolean/15.6.4.2-4-n.js
   4
   5                         The toString function is not generic; it generates
   6                         a runtime error if its this value is not a Boolean
   7                         object.  Therefore it cannot be transferred to other
   8                         kinds of objects for use as a method.
   9
  10     Author:             christine@netscape.com
  11     Date:               june 27, 1997
  12 */
  13     var SECTION = "boolean-001.js";
  14     var VERSION = "JS1_4";
  15     var TITLE   = "Boolean.prototype.toString()";
  16     startTest();
  17     writeHeaderToLog( SECTION +" "+ TITLE );
  18
  19     var tc = 0;
  20     var testcases = new Array();
  21
  22     var exception = "No exception thrown";
  23     var result = "Failed";
  24
  25     var TO_STRING = Boolean.prototype.toString;
  26
  27     try {
  28         var s = new String("Not a Boolean");
  29         s.toString = TO_STRING;
  30         s.toString();
  31     } catch ( e ) {
  32         result = "Passed!";
  33         exception = e.toString();
  34     }
  35
  36     testcases[tc++] = new TestCase(
  37         SECTION,
  38         "Assigning Boolean.prototype.toString to a String object "+
  39         "(threw " +exception +")",
  40         "Passed!",
  41         result );
  42
  43     test();