15.2.3.6-4-317-1.js (1206B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-4-317-1 6 description: > 7 Object.defineProperty - 'O' is an Arguments object of a function 8 that has formal parameters, 'P' is own data property of 'O', test 9 TypeError is thrown when updating the [[Value]] attribute value of 10 'P' which is not writable and not configurable (10.6 11 [[DefineOwnProperty]] step 4) 12 includes: [propertyHelper.js] 13 ---*/ 14 15 (function(a, b, c) { 16 Object.defineProperty(arguments, "genericProperty", { 17 value: 1001, 18 writable: false, 19 configurable: false 20 }); 21 try { 22 Object.defineProperty(arguments, "genericProperty", { 23 value: 1002 24 }); 25 throw new Test262Error("Expected an exception."); 26 } catch (e) { 27 if (b !== 2) { 28 throw new Test262Error('Expected "b === 2;", actually ' + b); 29 } 30 31 if (!(e instanceof TypeError)) { 32 throw new Test262Error("Expected TypeError, got " + e); 33 } 34 } 35 36 verifyProperty(arguments, "genericProperty", { 37 value: 1001, 38 writable: false, 39 enumerable: false, 40 configurable: false, 41 }); 42 }(1, 2, 3)); 43 44 reportCompare(0, 0);