public void TestGetById()
        {
            mockConversationRepository.Setup(x => x.GetById(It.IsAny <string>())).Returns(conversation);
            var          chatService        = new ChatService.Services.ChatService(mockConversationRepository.Object, mockMessageRepository.Object);
            Conversation conversationActual = chatService.GetById("asfas9fdsa8fa7f6sf6as");

            Assert.AreEqual(conversationActual, conversation);
        }