static MockReplicaId createMockReplicaId(String storeId, long capacity, String filePath) {
    return new MockReplicaId(storeId, capacity, filePath);
  }
Creates a mock replicaId for blob store testing
@param storeId partitionId from replicaId.getPartitionId() will toString() to this
@param capacity replicaId.getCapacityInBytes() will output this
@param filePath replicaId.getReplicaPath() will output this
@return mock replicaId
ambry-store/src/test/java/com/github/ambry/store/StoreTestUtils.java