public static void destroyRegion(String regionName, final int min) {
    final Region<?, ?> r = cache.getRegion(SEPARATOR + regionName);
    await().until(() -> r.size() > min);
    r.destroyRegion();
  }
Returns a Map that contains the count for number of cache server and number of Receivers.
geode-wan/src/distributedTest/java/org/apache/geode/internal/cache/wan/WANTestBase.java