| <!DOCTYPE html> |
| <title>Test that a detached TextTrackList can still be used without crashing.</title> |
| <script src="../../resources/gc.js"></script> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script> |
| async_test(function(t) { |
| var video = document.createElement("video"); |
| |
| // Register an event handler on video element's TextTrackList. |
| var tracks = video.textTracks; |
| tracks.onaddtrack = handler; |
| |
| // Clear "video" to bring about its release. |
| video = null; |
| |
| // Force garbage collection. |
| gc(); |
| |
| setTimeout(t.step_func_done(function() { |
| // Inspect and invoke the handler. |
| assert_equals(tracks.onaddtrack, handler); |
| tracks.onaddtrack(); |
| }), 0); |
| |
| function handler() { |
| // PASS (no crash). |
| } |
| }); |
| </script> |
