@Test
public void testGetEmojisFromMessage_nullMessage() {

    Message message = new Message(mentionTime, "randomFrom", "randomUserId", null,
                                  "randomRoomId", MessageType.MESSAGE);
    FatMessage fatMessage = new FatMessage(message, user, room);
    List<EmojiEntity> emojis = underTest.getEmojisFromMessage(fatMessage);
    assertTrue(emojis.isEmpty());
}