protected boolean isTestTable(FakeRSRpcServices rpcServices,
      HBaseProtos.RegionSpecifier regionSpec) throws ServiceException {
      try {
        return TABLE_NAME
          .equals(rpcServices.getRegion(regionSpec).getTableDescriptor().getTableName());
      } catch (IOException ioe) {
        throw new ServiceException(ioe);
      }
    }
Test that our cleanOverlappingRegions doesn't incorrectly remove regions from cache. Originally
encountered when using floorEntry rather than lowerEntry.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMetaCache.java