private void verifyInternalRegions(Consumer<LocalRegion> verify) {
    LuceneTestUtilities.verifyInternalRegions(luceneService, cache, verify);
  }
Tests of lucene index creation that use off heap memory
geode-lucene/src/integrationTest/java/org/apache/geode/cache/lucene/LuceneIndexCreationOffHeapIntegrationTest.java