| <!DOCTYPE html> |
| <script src="../resources/js-test-pre.js"></script> |
| <script> |
| description("Tests that Object.getOwnPropertyDescriptor() works correctly for Window properties"); |
| |
| function checkWindowPropertyDescriptor(descriptor, readOnly) |
| { |
| shouldBeType("descriptor.get", "Function"); |
| if (readOnly) |
| shouldBeUndefined("descriptor.set"); |
| else |
| shouldBeType("descriptor.set", "Function"); |
| shouldBeTrue("descriptor.enumerable"); |
| shouldBeTrue("descriptor.configurable"); |
| nonWindowObject = document; |
| shouldThrow("descriptor.get.call(nonWindowObject)"); |
| } |
| |
| // The properties of global objects (such as Window) need to be on the instance as per the Web IDL specification, |
| // even if they are not marked as [Unforgeable]. |
| |
| debug("* Window.screen"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "screen"); |
| checkWindowPropertyDescriptor(descriptor, false); |
| shouldBeTrue("descriptor.get.call(window) === window.screen"); |
| shouldBeTrue("descriptor.get.call() === window.screen"); |
| |
| debug(""); |
| debug("* Window.navigator"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "navigator"); |
| checkWindowPropertyDescriptor(descriptor, true); |
| shouldBeTrue("descriptor.get.call(window) === window.navigator"); |
| shouldBeTrue("descriptor.get.call() === window.navigator"); |
| |
| debug(""); |
| debug("* Window.self"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "self"); |
| checkWindowPropertyDescriptor(descriptor); |
| shouldBeTrue("descriptor.get.call(window) === window.self"); |
| shouldBeTrue("descriptor.get.call() === window.self"); |
| |
| debug(""); |
| debug("* Window.frameElement"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "frameElement"); |
| checkWindowPropertyDescriptor(descriptor, true); |
| shouldBeTrue("descriptor.get.call(window) === window.frameElement"); |
| shouldBeTrue("descriptor.get.call() === window.frameElement"); |
| |
| debug(""); |
| debug("* Window.name"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "name"); |
| checkWindowPropertyDescriptor(descriptor, false); |
| shouldBeTrue("descriptor.get.call(window) === window.name"); |
| shouldBeTrue("descriptor.get.call() === window.name"); |
| |
| debug(""); |
| debug("* window.Node"); |
| descriptor = Object.getOwnPropertyDescriptor(window, "Node"); |
| shouldBeFalse("descriptor.enumerable"); |
| shouldBeTrue("descriptor.writable"); |
| shouldBeTrue("descriptor.configurable"); |
| shouldBe("descriptor.value", "window.Node"); |
| |
| debug(""); |
| debug("* window.__proto__.constructor"); |
| descriptor = Object.getOwnPropertyDescriptor(window.__proto__, "constructor"); |
| shouldBeFalse("descriptor.enumerable"); |
| shouldBeTrue("descriptor.writable"); |
| shouldBeTrue("descriptor.configurable"); |
| shouldBe("descriptor.value", "window.Window"); |
| |
| debug(""); |
| </script> |
| <script src="../resources/js-test-post.js"></script> |
