LayoutTests/ietestcenter/Javascript/TestCases/15.12-0-4.js

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/*
This test should be run without any built-ins being added/augmented.
The last paragraph in section 15 says "every other property described
in this section has the attribute {... [[Enumerable]] : false ...}
unless otherwise specified. This default applies to the properties on
JSON, and we should not be able to enumerate them.
*/


ES5Harness.registerTest( {
id: "15.12-0-4",

path: "TestCases/chapter15/15.12/15.12-0-4.js",

description: "JSON object's properties must be non enumerable",

test: function testcase() { 
  var o = JSON;
  var i = 0;
  for (var p in o) {
    i++;
  }
    
  if (i === 0) {
    return true;
  }
 } ,

 precondition: function preq () {
  return JSON !== undefined;
  }
});