| <html> |
| <head> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../../resources/gc.js"></script> |
| </head> |
| <body> |
| <script> |
| promise_test(async t => { |
| // Some scheduled events can hold Persistent references to RTCPeerConnection. |
| // See |RTCPeerConnection::ChangeIceGatheringState()| or |
| // |RTCPeerConnection::ChangePeerConnectionState()| for example. |
| // This test checks that such undelivered events don't prevent their parent |
| // RTCPeerConnection object from garbage collection after destroying |
| // corresponding execution context. |
| |
| let iframe = document.createElement("iframe"); |
| document.body.appendChild(iframe); |
| |
| let iframe_pc = new iframe.contentWindow.RTCPeerConnection(); |
| assert_equals(iframe_pc.signalingState, 'stable'); |
| iframe_pc.createDataChannel('foo'); |
| |
| let frameRemoved = new Promise(function(resolve, reject) { |
| // Destroy frame (and |iframe_pc| related execution context) just before |
| // delivering scheduled "icegatheringstatechange" event. |
| internals.waitForPeerConnectionDispatchEventsTaskCreated(iframe_pc) |
| .then(() => { iframe.remove(); resolve(); }); |
| iframe_pc.createOffer() |
| .then((offer) => iframe_pc.setLocalDescription(offer)); |
| }); |
| await frameRemoved; |
| |
| assert_equals(iframe_pc.signalingState, 'closed'); |
| assert_equals(internals.peerConnectionCount(), 1); |
| iframe_pc = null; |
| await asyncGC(); |
| assert_equals(internals.peerConnectionCount(), 0); |
| }, 'PeerConnection with undelivered events is closed and garbage collected'); |
| </script> |
| </body> |
| </html> |
