| <!DOCTYPE html> |
| <head> |
| <script src="../resources/js-test.js"></script> |
| <script src="resources/netinfo_common.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| description('Tests that unused listeners are collected.'); |
| |
| shouldBe('typeof window.internals.observeGC', '"function"', |
| 'this test requires window.internals'); |
| |
| var callback = function(e) { |
| testFailed("Should not get here."); |
| }; |
| |
| // Add a listener. |
| var callbackObserver = internals.observeGC(callback); |
| connection.addEventListener('typechange', callback); |
| gc(); |
| shouldBeFalse('callbackObserver.wasCollected'); |
| |
| // Remove the listener and its callback reference. |
| connection.removeEventListener('typechange', callback); |
| callback = null; |
| gc(); |
| shouldBeTrue('callbackObserver.wasCollected'); |
| finishJSTest(); |
| |
| </script> |
| </body> |
| </html> |
