| <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN"> |
| <html> |
| <head> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../../resources/gc.js"></script> |
| </head> |
| <body> |
| <script> |
| |
| // Check that the number of peerconnections we can create hasn't regressed. |
| // At the moment (Nov 2017), the limit is approx |
| // - 770 on Mac |
| // - 850 on Windows |
| // - 1700 on Linux |
| |
| let peerConnections = []; |
| |
| function allocatePeerConnection() { |
| peerConnections.push(new RTCPeerConnection()); |
| } |
| |
| async function cleanUpPeerConnectionsAndGarbageCollect() { |
| // Close all peer connections so that they may be garbage collected. |
| peerConnections.forEach(pc => { |
| pc.close(); |
| }); |
| peerConnections = []; |
| await asyncGC(); |
| } |
| |
| promise_test(async function() { |
| try { |
| // These many peer connections should be OK to allocate. |
| while (internals.peerConnectionCount() < |
| internals.peerConnectionCountLimit) { |
| allocatePeerConnection(); |
| } |
| // Exceeding the limit should throw an UnknownError. |
| assert_throws_dom("UnknownError", allocatePeerConnection, |
| 'Creating too many RTCPeerConnections gives UnknownError'); |
| } finally { |
| // On swarming bots running blink_web_tests (such as win7-rel), garbage |
| // collection is not guaranteed to occur between test pages. As such we |
| // cannot assume that the initial count is 0, and we must clean up after |
| // this test regardless of test result or unrelated tests may fail. |
| let totalAllocatedPeerConnections = internals.peerConnectionCount(); |
| let peerConnectionsAllocatedByTest = peerConnections.length; |
| await cleanUpPeerConnectionsAndGarbageCollect(); |
| // We cannot assert there are no peer connections since other swarming tests |
| // could have left peer connections in a non-closed state, but we can assert |
| // that at least all |peerConnectionsAllocatedByTest| have been collected. |
| assert_less_than_equal( |
| internals.peerConnectionCount(), |
| totalAllocatedPeerConnections - peerConnectionsAllocatedByTest); |
| } |
| }, 'Create and garbage collect many RTCPeerConnections'); |
| |
| </script> |
| </body> |
| </html> |
