Long actualCount = messageService.count();
Assert.assertEquals(expectedCount, actualCount);
Searchable searchable = Searchable.newSearchable();
searchable.addSearchFilter("receiverId", SearchOperator.in, userIds);
List<Message> list = messageService.findAllWithNoPageNoSort(searchable);
Assert.assertEquals(userIds.length, list.size());
Assert.assertEquals(MessageType.system_message, list.get(0).getType());
Page<Message> page = messageApi.findUserMessage(receiverId, MessageState.in_box, null);