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/// 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.
/**
* This test is actually testing the [[Delete]] internal method (8.12.8). Since the
* language provides no way to directly exercise [[Delete]], the tests are placed here.
*
* @path ch11/11.4/11.4.1/11.4.1-4.a-3.js
* @description delete operator returns false when deleting a non-configurable data property
*/
function testcase() {
var o = {};
var desc = { value : 1, configurable: false }; // all other attributes default to false
Object.defineProperty(o, "foo", desc);
// Now, deleting o.foo should fail because [[Configurable]] on foo is false.
var d = delete o.foo;
if (d === false && o.hasOwnProperty("foo") === true) {
return true;
}
}
runTestCase(testcase);
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