### Question:
LocalFileStore implements PositionStore<ConsumePartition, Position> { @Override public void forceFlush() { doFlush(); }  void setBasePath(String basePath); @Override void start(); @Override void stop(); @Override boolean isStarted(); @Override Position get(ConsumePartition key); @Override void put(ConsumePartition key, Position value); @Override Position remove(ConsumePartition key); @Override Position putIfAbsent(ConsumePartition key, Position value); @Override void forceFlush(); @Override Iterator<ConsumePartition> iterator(); ConcurrentMap<ConsumePartition, Position> recover();  }### Answer:
@Test public void forceFlush() { put(); localFileStore.forceFlush(); }