src/third_party/mozjs-45/js/src/tests/test262/ch08/8.12/8.12.1/8.12.1-1_7.js

/// Copyright (c) 2012 Ecma International.  All rights reserved. 
/// Ecma International makes this code available under the terms and conditions set
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
/// "Use Terms").   Any redistribution of this code must retain the above 
/// copyright and this notice and otherwise comply with the Use Terms.
/**
 * @path ch08/8.12/8.12.1/8.12.1-1_7.js
 * @description Properties - [[HasOwnProperty]] (writable, non-configurable, non-enumerable own value property)
 */

function testcase() {

    var o = {};
    Object.defineProperty(o, "foo", {value: 42, writable:true});
    return o.hasOwnProperty("foo");

}
runTestCase(testcase);