private String getStoreFileName(TableName table, byte[] family) {
    return Iterables
      .getOnlyElement(Iterables.getOnlyElement(UTIL.getMiniHBaseCluster().getRegions(table))
        .getStore(family).getStorefiles())
      .getPath().getName();
  }
Test changing store file tracker implementation by altering table.
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/storefiletracker/TestChangeStoreFileTracker.java