<!DOCTYPE html>
<html>
<head>
<title>Test MediaKeySession lifetime after release() without references</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 initDataType;
var initData;
// Create 2 sessions.
var mediaKeys;
var mediaKeySession1;
var mediaKeySession2;
// 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() {
assert_true(mediaKeySession1.sessionId && mediaKeySession1.sessionId.length > 0);
verifyMediaKeyAndMediaKeySessionCount(1, 1, 'MediaKeys.createSession(1)');
mediaKeySession2 = mediaKeys.createSession();
return mediaKeySession2.generateRequest(initDataType, initData);
}).then(function() {
assert_true(mediaKeySession2.sessionId && mediaKeySession2.sessionId.length > 0);
verifyMediaKeyAndMediaKeySessionCount(1, 2, 'mediaKeys.createSession(2)');
// Run gc(). All sessions should remain as we have a
// reference to each one.
return createGCPromise();
}).then(function(result) {
verifyMediaKeyAndMediaKeySessionCount(1, 2, 'After gc()');
// Close the sessions. Once the close() event is received,
// they should get garbage collected as there are no JS
// references to them.
var promise = mediaKeySession1.close();
mediaKeySession1 = null;
return promise;
}).then(function(result) {
// Give time so that the close event can be processed by
// MediaKeySession.
return delayToAllowEventProcessingPromise();
}).then(function(result) {
return createGCPromise();
}).then(function(result) {
verifyMediaKeyAndMediaKeySessionCount(1, 1, 'mediaKeySession1 not collected');
var promise = mediaKeySession2.close();
mediaKeySession2 = null;
return promise;
}).then(function(result) {
// Provide time for the mediaKeySession2 close event to be
// handled.
return delayToAllowEventProcessingPromise();
}).then(function(result) {
return createGCPromise();
}).then(function(result) {
verifyMediaKeyAndMediaKeySessionCount(1, 0, 'mediaKeySession2 not collected');
assert_not_equals(mediaKeys, null);
});
}, 'MediaKeySession lifetime after release() without references');
</script>
</body>
</html>
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