public void testFindAncestorsAndDescendants1() {
Message m1 = new Message();
m1.setSenderId(senderId);
m1.setReceiverId(receiverId);
m1.setTitle("ded");
MessageContent content1 = new MessageContent();
content1.setContent("abcde");
m1.setContent(content1);
messageApi.send(m1);
Message m2 = new Message();
m2.setSenderId(senderId);
m2.setReceiverId(receiverId);
m2.setTitle("ded");
MessageContent content2 = new MessageContent();
content2.setContent("abcde");
m2.setContent(content2);
m2.setParentId(m1.getId());
m2.setParentIds(m1.makeSelfAsParentIds());
messageApi.send(m2);
Message m3 = new Message();
m3.setSenderId(senderId);
m3.setReceiverId(receiverId);
m3.setTitle("ded");
MessageContent content3 = new MessageContent();
content3.setContent("abcde");
m3.setContent(content3);
m3.setParentId(m2.getId());
m3.setParentIds(m2.makeSelfAsParentIds());
messageApi.send(m3);