// 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-9-s description: > delete operator throws TypeError when deleting a non-configurable data property (Math.LN2) in strict mode flags: [onlyStrict] ---*/ assert.throws(TypeError, function() { delete Math.LN2; });