private void verifyPutAll(Map<String, TickerData> region, String keyPrefix) {
    for (int i = 0; i < ONE_HUNDRED; i++) {
      assertThat(region.containsKey(keyPrefix + i)).isTrue();
    }
  }
Same test as testVersionsOnServersWithNotificationsOnly but also does a removeAll
geode-cq/src/distributedTest/java/org/apache/geode/internal/cache/PutAllClientServerDistributedTest.java