| // Copyright 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| info: the prototype property has the attributes { DontDelete } |
| es5id: 15.3.5.2_A1_T1 |
| description: > |
| Checking if deleting the prototype property of Function("", null) |
| fails |
| includes: [propertyHelper.js] |
| ---*/ |
| |
| var f = new Function("", null); |
| |
| //CHECK#1 |
| if (!(f.hasOwnProperty('prototype'))) { |
| $ERROR('#1: the function has length property.'); |
| } |
| |
| var fproto = f.prototype; |
| |
| verifyNotConfigurable(f, "prototype"); |
| |
| //CHECK#2 |
| try { |
| if ((delete f.prototype) !== false) { |
| $ERROR('#2: the prototype property has the attributes { DontDelete }'); |
| } |
| } catch (e) { |
| if (e instanceof Test262Error) throw e; |
| assert(e instanceof TypeError); |
| } |
| |
| //CHECK#3 |
| if (f.prototype !== fproto) { |
| $ERROR('#3: the prototype property has the attributes { DontDelete }'); |
| } |