@Before
  public void setUp() throws Exception {
    dataStore1 = getHost(0).getVM(0);
    dataStore2 = getHost(0).getVM(1);
    client1 = getHost(0).getVM(2);
    dataStore3 = getHost(0).getVM(3);

    DeltaTestImpl.resetDeltaInvokationCounters();
    dataStore1.invoke(this::resetAll);
    dataStore2.invoke(this::resetAll);
    dataStore3.invoke(this::resetAll);
  }
Tests the PR delta propagation functionality.
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/PRDeltaPropagationDistributedTest.java