| <!DOCTYPE html> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| test(function() { |
| // The property descriptor of location[Symbol.toPrimitive] must be |
| // {configurable: false, enumerable: false, writable: false, |
| // value: undefined}. |
| assert_own_property(location, Symbol.toPrimitive, |
| "location does not have Symbol.toPrimitive property."); |
| var pd = Object.getOwnPropertyDescriptor(location, Symbol.toPrimitive); |
| assert_false(pd.configurable, |
| "location's Symbol.toPrimitive is configurable."); |
| assert_false(pd.enumerable, "location's Symbol.toPrimitive is enumerable."); |
| assert_false(pd.writable, "location's Symbol.toPrimitive is writable."); |
| assert_true('value' in pd, |
| "location's Symbol.toPrimitive is not a data property."); |
| assert_equals(pd.value, undefined, |
| "The value of location's Symbol.toPrimitive is not undefined."); |
| |
| // location's Symbol.toPrimitive supersedes Object.prototype's one. |
| // https://crbug.com/680409 |
| Object.prototype[Symbol.toPrimitive] = function() { return "hacked"; }; |
| assert_equals(String({}), "hacked", |
| "Object.prototype doesn't have a hacked Symbol.toPrimitive " + |
| "property."); |
| assert_not_equals(String(location), "hacked", |
| "location's Symbol.toPrimitive gets hacked."); |
| }, "Location objects must have Symbol.toPrimitive property defined."); |
| |
| done(); |
| </script> |
