private void waitForScheduledTombstoneCount(int count) {
    LocalRegion region = (LocalRegion) cache.getRegion(REGION_NAME);
    await().until(() -> ((InternalCache) cache).getTombstoneService().getSweeper(region).tombstones
        .size() == count);
  }
The purpose of this test is for a non-replicate region scenario to get the oldest tombstone
and validate that it matches the tombstone of the entry we removed. This is done through a
client
as a client is required to have this non-replicate tombstone.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/versions/TombstoneDUnitTest.java