// Copyright (c) 2012 Ecma International. All rights reserved. // This code is governed by the BSD license found in the LICENSE file. /*--- info: > 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. es5id: 11.4.1-4.a-4 description: > delete operator returns false when deleting a non-configurable data property (NaN) flags: [noStrict] includes: [runTestCase.js] ---*/ function testcase() { // NaN (15.1.1.1) has [[Configurable]] set to false. var d = delete NaN; if (d === false) { return true; } } runTestCase(testcase);