static void verifyCCP() {
    await()
        .until(() -> cache.getCacheServers().size(), equalTo(1));
    CacheServerImpl bs = (CacheServerImpl) cache.getCacheServers().iterator().next();

    assertThat(bs).isNotNull();
    assertThat(bs.getAcceptor()).isNotNull();
    assertThat(bs.getAcceptor().getCacheClientNotifier()).isNotNull();

    // one client is connected to this server
    final CacheClientNotifier ccn = bs.getAcceptor().getCacheClientNotifier();
    await().until(() -> ccn.getClientProxies().size(),
        equalTo(1));
  }
@param connectedServers is the expected number of connected servers (1 or more)
@param redundantServers is the expected number of redundant servers (0 or more)
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/RedundancyLevelTestBase.java