| <!DOCTYPE html> |
| <head> |
| <script src="../resources/js-test.js"></script> |
| <script src="resources/netinfo_common.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| description('Tests that listeners in closed frames are collected.'); |
| |
| shouldBe('typeof window.internals.observeGC', '"function"', |
| 'this test requires window.internals'); |
| |
| var childFrame = document.createElement('iframe'); |
| var childFrameObserver = internals.observeGC(childFrame); |
| |
| document.body.appendChild(childFrame); |
| |
| var childConnection = childFrame.contentWindow.navigator.connection; |
| var childConnectionObserver = internals.observeGC(childConnection); |
| |
| var callback = function(e) { |
| testFailed("Should not get here."); |
| }; |
| var callbackObserver = internals.observeGC(callback); |
| |
| // Add the event listener and make sure it doesn't get collected. |
| childConnection.addEventListener('typechange', callback); |
| childConnection = null; |
| callback = null; |
| gc(); |
| childFrame.contentWindow.gc(); |
| shouldBeFalse('childFrameObserver.wasCollected'); |
| shouldBeFalse('childConnectionObserver.wasCollected'); |
| shouldBeFalse('callbackObserver.wasCollected'); |
| |
| document.body.removeChild(childFrame); |
| childFrame = null; |
| gc(); |
| shouldBeTrue('childFrameObserver.wasCollected'); |
| shouldBeTrue('childConnectionObserver.wasCollected'); |
| shouldBeTrue('callbackObserver.wasCollected'); |
| |
| finishJSTest(); |
| |
| </script> |
| </body> |
| </html> |
