@Override
      public Object call() {
        Region custRegion = getCache().getRegion(CUSTOMER);
        TXManagerImpl mgr = getCache().getTxManager();
        mgr.begin();
        assertThat(custRegion.size()).isEqualTo(5);
        assertThat(mgr.getTXState()).isNotNull();
        return mgr.suspend();
      }
When we have narrowed down on a target node for a transaction, test that we throw an exception
if that node does not host primary for subsequent entries
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/RemoteTransactionDUnitTest.java