@Test
  public void testRegisterInterestUseCases() {
    vm1.invoke(NewRegionAttributesDUnitTest::registerInterest);
    vm1.invoke(NewRegionAttributesDUnitTest::unregisterInterest);
    vm1.invoke(NewRegionAttributesDUnitTest::getInterestForRegion);
  }
This test tries to call register/unregister interest related API's on the test-region (which
does not have any bridge-client or bridge-server) and verifies that
<code>UnsupportedOperationException</code> occurs as expected
geode-core/src/distributedTest/java/org/apache/geode/internal/cache/tier/sockets/NewRegionAttributesDUnitTest.java