void setLocalStore(Store localStore) {
    this.localStore = localStore;
  }
Set the store information.
This is ONLY used in UNIT TESTs to set mock in-memory local store for using in replication. For production
code, {@link Store} will be provided during construction of this object from StorageManager.
@param localStore Underlying store to store blobs
ambry-replication/src/main/java/com/github/ambry/replication/RemoteReplicaInfo.java