@After
  public void tearDown() throws Exception {
    disconnectAllFromDS();
    Invoke.invokeInEveryVM(() -> {
      DeltaTestImpl.resetDeltaInvokationCounters();
      isFailed = false;
      isBadToDelta = false;
      isBadFromDelta = false;
    });
  }
Tests the PR delta propagation functionality.
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/PRDeltaPropagationDistributedTest.java