public void AddConversationEntitiesTest()
        {
            var conversationRepository = new ConversationRepository();

            var conversations = new List <Conversation> {
                new Conversation(1), new Conversation(2)
            };

            foreach (Conversation conversation in conversations)
            {
                conversationRepository.AddEntity(conversation);
            }

            Assert.AreEqual(conversations, conversationRepository.GetAllEntities());
        }