| // Copyright 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| info: Error.prototype property has the attributes {DontDelete} |
| es5id: 15.11.3.1_A1_T1 |
| description: Checking if deleting the Error.prototype property fails |
| includes: [propertyHelper.js] |
| ---*/ |
| |
| var proto = Error.prototype; |
| ////////////////////////////////////////////////////////////////////////////// |
| //CHECK#1 |
| verifyNotConfigurable(Error, "prototype"); |
| try { |
| if ((delete Error.prototype) !== false) { |
| $ERROR('#1: Error.prototype has the attribute DontDelete'); |
| } |
| } catch (e) { |
| if (e instanceof Test262Error) throw e; |
| assert(e instanceof TypeError); |
| } |
| // |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| //CHECK#2 |
| if (Error.prototype !== proto) { |
| $ERROR('#2: var proto=Error.prototype; delete Error.prototype; Error.prototype===proto. Actual: ' + Error.prototype); |
| } |
| // |
| ////////////////////////////////////////////////////////////////////////////// |