| <!DOCTYPE html> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| description("Tests that operations marked as [Unforgeable] are indeed readonly."); |
| |
| function className(object) { |
| return Object.prototype.toString.call(object).match(/^\[object\s(.*)\]$/)[1]; |
| } |
| |
| function checkReadOnly(object, propertyName) |
| { |
| testObject = object; |
| testPropertyName = propertyName; |
| |
| debug(""); |
| debug("- " + className(object) + "." + propertyName); |
| shouldBeFalse("Object.getOwnPropertyDescriptor(testObject, testPropertyName).writable"); |
| // Non strict mode. |
| shouldNotThrow("testObject[testPropertyName] = false"); |
| shouldNotBe("testObject[testPropertyName]", "false"); |
| // Strict mode. |
| shouldThrow("'use strict'; testObject[testPropertyName] = 3", "'TypeError: Attempted to assign to readonly property.'"); |
| shouldNotBe("testObject[testPropertyName]", "3"); |
| } |
| |
| debug("* Location (non refied)"); |
| checkReadOnly(location, "reload"); |
| checkReadOnly(location, "assign"); |
| checkReadOnly(location, "replace"); |
| |
| debug(""); |
| debug("* Location (reified)"); |
| // Reify location. |
| location.newProperty = true; |
| delete location.newProperty; |
| // Test again. |
| checkReadOnly(location, "reload"); |
| checkReadOnly(location, "assign"); |
| checkReadOnly(location, "replace"); |
| |
| debug(""); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
