// verify if content protection keys have changed
Assert.assertEquals(protectionKeysNew.getPublic(), getter.getDataManager().getUnblocked(parameters)
.awaitUninterruptibly().getData().publicKey());
// manually trigger roll back
step.cancel(new RollbackReason("Testing rollback."));
// verify if content protection keys have changed to old ones
Assert.assertEquals(protectionKeysOld.getPublic(), getter.getDataManager().getUnblocked(parameters)
.awaitUninterruptibly().getData().publicKey());
}