<!DOCTYPE html>
<html>
<head>
<title>MediaKeySession lifetime after release()</title>
<script src="encrypted-media-utils.js"></script>
<script src="../../resources/testharness.js"></script>
<script src="../../resources/testharnessreport.js"></script>
</head>
<body>
<script>
// MediaKeySessions remain as long as:
// JavaScript has a reference to it
// OR (MediaKeys is around
// AND the session has not received a close() event)
promise_test(function(test)
{
var mediaKeys;
var mediaKeySession1;
var mediaKeySession2;
var initDataType;
var initData;
// Create 2 sessions.
// Even though there should be no existing objects, start by
// running gc() and verifying that none exist. This also
// allows the failures to be reported from inside a promise
// so that the test fails properly.
return createGCPromise().then(function() {
verifyMediaKeyAndMediaKeySessionCount(0, 0, 'After initial gc()');
return navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimpleConfiguration());
}).then(function(access) {
initDataType = access.getConfiguration().initDataTypes[0];
initData = getInitData(initDataType);
return access.createMediaKeys();
}).then(function(result) {
mediaKeys = result;
verifyMediaKeyAndMediaKeySessionCount(1, 0, 'MediaKeys.create()');
mediaKeySession1 = mediaKeys.createSession();
return mediaKeySession1.generateRequest(initDataType, initData);
}).then(function() {
verifyMediaKeyAndMediaKeySessionCount(1, 1, 'MediaKeys.createSession(1)');
mediaKeySession2 = mediaKeys.createSession();
return mediaKeySession2.generateRequest(initDataType, initData);
}).then(function() {
verifyMediaKeyAndMediaKeySessionCount(1, 2, 'mediaKeys.createSession(2)');
// Close the sessions. Once completed, only the JS
// reference to them keeps them around.
return mediaKeySession1.close();
}).then(function(result) {
return mediaKeySession2.close();
}).then(function(result) {
// Since both sessions have been closed, dropping the
// reference to them from JS will result in the session
// being garbage-collected.
verifyMediaKeyAndMediaKeySessionCount(1, 2, 'after close');
mediaKeySession1 = null;
return createGCPromise();
}).then(function() {
verifyMediaKeyAndMediaKeySessionCount(1, 1, 'mediaKeySession1 not collected');
mediaKeySession2 = null;
return createGCPromise();
}).then(function() {
verifyMediaKeyAndMediaKeySessionCount(1, 0, 'mediaKeySession2 not collected');
});
}, 'MediaKeySession lifetime after release()');
</script>
</body>
</html>
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