| <!DOCTYPE html> |
| <html> |
| <head> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../../resources/gc.js"></script> |
| </head> |
| <body> |
| <iframe id="subframe" src="about:blank"></iframe> |
| <script> |
| |
| var testNavigatorOnLoad = async_test("Accessing a navigator object that just got removed does not crash.") |
| var testNavigatorLater = async_test("Accessing a navigator object that got removed some time before does not crash.") |
| |
| // Reference to the removed navigator object. |
| var oldNav = null; |
| |
| function test() { |
| // Keep a reference of the navigator and remove the frame. |
| oldNav = window.frames[0].navigator; |
| var frame = document.getElementById("subframe"); |
| frame.parentNode.removeChild(frame); |
| |
| if (window.GCController) |
| window.GCController.collect(); |
| |
| // Check once immediately. |
| testNavigatorOnLoad.step(function() { |
| check_navigator(); |
| }); |
| testNavigatorOnLoad.done(); |
| |
| gc(); |
| |
| // Check one more time later, when the frame is likely to be destroyed. |
| setTimeout(function() { |
| testNavigatorLater.step(function() { |
| check_navigator(); |
| }); |
| testNavigatorLater.done(); |
| }, 200); |
| } |
| |
| function check_navigator() { |
| for (p in oldNav) { |
| if (typeof oldNav[p] == 'function') { |
| try { |
| var v = oldNav[p](); |
| assert_true(true, "navigator."+p+"() is OK"); |
| } catch(err) { |
| // Some function call will asserts, the assert shouldn't make the test fail. |
| assert_true(true, "navigator."+p+"() threw err "+err); |
| } |
| } else { |
| var v = oldNav[p]; |
| assert_true(true, "navigator."+p+" is OK"); |
| } |
| } |
| } |
| |
| window.addEventListener('load', test); |
| |
| </script> |
| |
| </body> |
| </html> |
