| <!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; |
| var childFrameObserver, childConnectionObserver, callbackObserver; |
| |
| // Do initialization work in an inner function to avoid references to |
| // objects remaining live on this function's stack frame. |
| // (http://crbug.com/595672/). |
| (function() { |
| var callback = function(e) { |
| testFailed("Should not get here."); |
| }; |
| |
| childFrame = document.createElement('iframe'); |
| childFrameObserver = internals.observeGC(childFrame); |
| document.body.appendChild(childFrame); |
| var childConnection = childFrame.contentWindow.navigator.connection; |
| childConnectionObserver = internals.observeGC(childConnection); |
| callbackObserver = internals.observeGC(callback); |
| childConnection.addEventListener('typechange', callback); |
| })(); |
| |
| gc(); |
| (() => {childFrame.contentWindow.gc();})() |
| shouldBeFalse('childFrameObserver.wasCollected'); |
| shouldBeFalse('childConnectionObserver.wasCollected'); |
| shouldBeFalse('callbackObserver.wasCollected'); |
| |
| // Access objects in an inner function to avoid references to objects |
| // remaining live on this function's stack frame (http://crbug.com/595672/). |
| (() => {document.body.removeChild(childFrame);})(); |
| (() => {childFrame = null;})(); |
| gc(); |
| shouldBeTrue('childFrameObserver.wasCollected'); |
| shouldBeTrue('childConnectionObserver.wasCollected'); |
| shouldBeTrue('callbackObserver.wasCollected'); |
| |
| finishJSTest(); |
| |
| </script> |
| </body> |
| </html> |
