@Test
 public void testLastReleasedSequenceNumber() throws Exception {
   GemfireMessageStore store = new GemfireMessageStore(this.cache);
   store.afterPropertiesSet();
   MessageGroup messageGroup = store.getMessageGroup(1);
   Message<?> messageToMark = new GenericMessage<String>("1");
   store.addMessageToGroup(messageGroup.getGroupId(), messageToMark);
   store.setLastReleasedSequenceNumberForGroup(messageGroup.getGroupId(), 5);
   messageGroup = store.getMessageGroup(1);
   assertEquals(5, messageGroup.getLastReleasedMessageSequenceNumber());
 }