| <!DOCTYPE html> |
| <html> |
| <body> |
| <script src="../../resources/js-test-pre.js"></script> |
| <script> |
| description("Checks that attributes are on the prototype are configurable."); |
| |
| var event = new Event("test"); |
| shouldBe("event.eventPhase", "0"); |
| shouldBeTrue("event.__proto__.hasOwnProperty('eventPhase')"); |
| var properties = Object.getOwnPropertyDescriptor(event.__proto__, "eventPhase"); |
| shouldBeTrue("properties.configurable"); |
| shouldBeTrue("properties.enumerable"); |
| shouldBeTrue("delete event.__proto__.eventPhase"); |
| shouldBe("event.eventPhase", "undefined"); |
| </script> |
| <script src="../../resources/js-test-post.js"></script> |
| </body> |
| </html> |
