To perform these tests it's recommended to change the value of mmaModForumSyncInterval (e.g. 30000) so the sync process is executed often. Activate the synchronization on some forums (enable toggle checkbox in the forums). Check that the sync status is kept even if you close the app and go back to the forum. Check that the sync process is executed every mmaModForumSyncInterval ms. Go offline, wait for the next execution of $mmSyncDelegate#_syncProcess and check that the next execution is set at 5 minutes instead of the forum interval. Add new posts and discussions to a forum to be synchronized. Wait for the sync process to execute (please note that the sync process doesn't invalidate cache, you'll also need to wait for cache to expire). Go offline and check that you can see the new discussions and posts (images and so inside text aren't synchronized). You can also perform this test while using another site.