public static void createEntriesK1andK2() {
    Region<String, String> r1 = cache.getRegion(SEPARATOR + REGION_NAME);
    assertThat(r1).isNotNull();
    if (!r1.containsKey(k1)) {
      r1.create(k1, k1);
    }
    if (!r1.containsKey(k2)) {
      r1.create(k2, k2);
    }
    assertThat(r1.getEntry(k1).getValue()).isEqualTo(k1);
    assertThat(r1.getEntry(k2).getValue()).isEqualTo(k2);
  }
@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