@Override
        public void onBlobDeleted(String blobId, String serviceId, Account account, Container container) {
          deletesInitiated.incrementAndGet();
          receivedDeleteServiceId.set(serviceId);
        }
Test to ensure when deleting a named blob, all versions are deleted and all blob ids are deleted.
@throws Exception
ambry-router/src/test/java/com/github/ambry/router/NonBlockingRouterTest.java