@Override
      public void run2() throws CacheException {
        Region region1 = getRootRegion().getSubregion(regions[0]);
        region1.destroyRegion();
      }
This will test the events after region destroy. The CQs on the destroy region needs to be
closed.
geode-cq/src/distributedTest/java/org/apache/geode/cache/query/cq/dunit/CqQueryDUnitTest.java