@Override
  public void start() throws InterruptedException, StoreException {
    super.start();
    for (Store store : storeMap.values()) {
      ((TestStore) store).start();
    }
  }
Starts all test BlobStores
@throws InterruptedException
@throws StoreException
ambry-server/src/test/java/com/github/ambry/server/MockStorageManager.java