@Override
      public Object call() {
        Region custRegion =
            basicGetCache().getRegion(SEPARATOR + CustomerPartitionedRegionName);
        custRegion.getAttributesMutator().addCacheListener(new TransactionListener2());
        return null;
      }
verify that 10 orders are created for each customer
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/execute/PRTransactionDUnitTest.java