| Index: LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeysession-reference.html
|
| diff --git a/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeysession-reference.html b/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeysession-reference.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..2c25a174f9bc67b3dea6a4161a9898a3bc16ac13
|
| --- /dev/null
|
| +++ b/LayoutTests/media/encrypted-media/encrypted-media-lifetime-mediakeysession-reference.html
|
| @@ -0,0 +1,75 @@
|
| +<!DOCTYPE html>
|
| +<html>
|
| + <head>
|
| + <title>Test MediaKeySession lifetime</title>
|
| + <script src="../w3c-media-utils.js"></script>
|
| + <script src="../../resources/testharness.js"></script>
|
| + <script src="../../resources/testharnessreport.js"></script>
|
| + <script src="../../resources/gc.js"></script>
|
| + </head>
|
| + <body>
|
| + <div id="log"></div>
|
| + <script>
|
| + // Since MediaKeySession (but not MediaKeys) are ActiveDOMObjects,
|
| + // we can determine when they are garbage collected.
|
| + // MediaKeySessions remain as long as:
|
| + // JavaScript has a reference to it
|
| + // OR (MediaKeys is around AND the session has not received a close() event)
|
| + test(function()
|
| + {
|
| + var initData = new Uint8Array([0, 1, 2, 3, 4, 5, 6, 7]);
|
| + var startingActiveDOMObjectCount = window.internals.activeDOMObjectCount(document);
|
| +
|
| + function numActiveDOMObjectsCreated()
|
| + {
|
| + return window.internals.activeDOMObjectCount(document) - startingActiveDOMObjectCount;
|
| + }
|
| +
|
| + var mediaKeys = new MediaKeys("org.w3.clearkey");
|
| + assert_equals(mediaKeys.keySystem, 'org.w3.clearkey');
|
| +
|
| + // Verify MediaKeys are not ActiveDOMObjects.
|
| + assert_equals(numActiveDOMObjectsCreated(), 0, "MediaKeys created an ActiveDOMObject");
|
| +
|
| + // Create 3 sessions.
|
| + var mediaKeySession1 = mediaKeys.createSession("video/webm", initData);
|
| + assert_equals(numActiveDOMObjectsCreated(), 1);
|
| + var mediaKeySession2 = mediaKeys.createSession("video/webm", initData);
|
| + assert_equals(numActiveDOMObjectsCreated(), 2);
|
| + var mediaKeySession3 = mediaKeys.createSession("video/webm", initData);
|
| + assert_equals(numActiveDOMObjectsCreated(), 3);
|
| +
|
| + // Run gc(). All sessions should remain as we have a reference
|
| + // to each one.
|
| + gc();
|
| + assert_equals(numActiveDOMObjectsCreated(), 3);
|
| +
|
| + // Now drop references to 2 of the sessions. Even though we
|
| + // don't have a reference, MediaKeys is still around (and the
|
| + // sessions aren't closed), so the objects won't be collected.
|
| + mediaKeySession2 = null;
|
| + mediaKeySession3 = null;
|
| + gc();
|
| + assert_equals(numActiveDOMObjectsCreated(), 3);
|
| +
|
| + // Now drop the reference to MediaKeys. It and the 2
|
| + // unreferenced sessions should be collected. Since
|
| + // MediaKeySessions remain alive as long as MediaKeys is around,
|
| + // it is possible that gc() checks one or both MediaKeySession
|
| + // objects first, and doesn't collect them since MediaKeys
|
| + // hasn't been collected yet. Thus run gc() twice, to ensure
|
| + // that the unreferenced MediaKeySession objects get collected.
|
| + mediaKeys = null;
|
| + gc();
|
| + gc();
|
| + assert_equals(numActiveDOMObjectsCreated(), 1);
|
| +
|
| + // Drop the reference to the first session. It should get
|
| + // collected now since MediaKeys is gone.
|
| + mediaKeySession1 = null;
|
| + gc();
|
| + assert_equals(numActiveDOMObjectsCreated(), 0);
|
| + }, "MediaKeySession lifetime without release()");
|
| + </script>
|
| + </body>
|
| +</html>
|
|
|
Chromium Code Reviews
Issue 209103002:
Add lifetime tests for MediaKeySession (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master