@Test
  public void testRegisterInterestOnPartitionedRegionWithCacheLoader() throws Exception {
    runRegisterInterestWithCacheLoaderTest(false);
  }
This tests whether an exception is thrown in register/unregister when no server is available.
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/InterestListDUnitTest.java