private SerializableRunnableIF getCacheSerializableRunnableForIndexValidation(
      final String regionName, final String indexName) {
    return new CacheSerializableRunnable("Index Validate") {
      @Override
      public void run2() throws CacheException {
        Cache cache = PRQueryDUnitHelper.getCache();
        Region region = cache.getRegion(regionName);

        IndexValidator validator = new IndexValidator();

        validator.validate(region);
      }
    };
  }
Tear down a PartitionedRegionTestCase by cleaning up the existing cache (mainly because we want
to destroy any existing PartitionedRegions)
geode-core/src/distributedTest/java/org/apache/geode/cache/query/internal/index/ConcurrentIndexUpdateWithInplaceObjectModFalseDUnitTest.java