@After
  public void tearDown() throws Exception {
    if (region != null) {
      region.destroyRegion();
    }
    CacheUtils.closeCache();
  }
Test class that will be extended to provide the IndexStorage structure to test Tests apis of the
IndexStorage
geode-core/src/integrationTest/java/org/apache/geode/cache/query/internal/index/MapIndexStoreJUnitTest.java