@Override
          public void run2() throws CacheException {
            DistributedRegion rgn1 = (DistributedRegion) getRootRegion();
            assertTrue(rgn1.getDistributionAdvisor().adviseGeneric().contains(myMemberId));
            rgn1 = (DistributedRegion) rgn1.getSubregion(rgnName);
            assertTrue(rgn1.getDistributionAdvisor().adviseGeneric().contains(myMemberId));
          }
@param op needs to be one of the following: CACHE_CLOSE REGION_CLOSE REGION_LOCAL_DESTROY
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/CacheAdvisorDUnitTest.java