@Test
  public void testOverflowStatsAsync() {
    String regionName = "testStats";
    int localMaxMemory = 100;
    PartitionedRegion pr = createPRWithEviction(regionName + 1, localMaxMemory, false, false);
    validateOverflowStats(pr);
  }
This method verifies that PR statistics are working properly for a PartitionedRegion.
putsCompleted, getsCompleted, createsCompleted, destroysCompleted, containsKeyCompleted,
containsValueForKeyCompleted, invalidatesCompleted, totalBucketSize and temporarily commented
avgRedundantCopies, maxRedundantCopies, minRedundantCopies are validated in this method.
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/PartitionedRegionStatsJUnitTest.java