@Test
  public void monitorIntervalDefaultsWhenNotSet() {
    assertNotNull(ClientHealthMonitor
        .getInstance(mock(InternalCache.class), 0, mock(CacheClientNotifierStats.class))
        .getMonitorInterval());
  }
Creates and starts the server instance
geode-core/src/integrationTest/java/org/apache/geode/internal/cache/tier/sockets/ClientHealthMonitorIntegrationTest.java