### Question:
MessageTemplate extends AbstractYammerOperations implements MessageOperations { public void delete(long messageId) { restTemplate.delete(buildUri("messages/"+messageId)); } MessageTemplate(RestTemplate restTemplate); MessageInfo getMessages(long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesFollowing(long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesSent(long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesPrivate(long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesAboutTopic(long topicId, long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesInGroup(long groupId, long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesInThread(long threadId, long olderThan, long newerThan, int limit); MessageInfo getMessagesFromUser(long userId, long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesLikedByUser(long userId, long olderThan, long newerThan, String threaded, int limit); MessageInfo getMessagesReceived(long olderThan, long newerThan, String threaded, int limit); MessageInfo postUpdate(String message); MessageInfo postUpdate(String message, YammerPostDetails details); void like(long messageId); void unlike(long messageId); void delete(long messageId);  }### Answer:
@Test public void testDeleteMessage() { mockServer.expect(requestTo("https: .andExpect(method(DELETE)) .andRespond(withSuccess()); yammerTemplate.messageOperations().delete(123L); }