public void TestGetByConversationId()
        {
            IEnumerable <MessageDetail> _iEnumableMessageDetail = listMessageDetails;

            mockConversationRepository.Setup(x => x.GetMessageByConversationId(It.IsAny <string>())).Returns(_iEnumableMessageDetail);
            var chatService = new ChatService.Services.ChatService(mockConversationRepository.Object, mockMessageRepository.Object);
            IEnumerable <MessageDetail> _iEnumerableGetByConversationId = chatService.GetByConversationId("asfas9fdsa8fa7f6sf6as");
            MessageDetail messageDetailActual = _iEnumerableGetByConversationId.FirstOrDefault();

            Assert.AreEqual(messageDetailActual.Id, "5d4d012613376b00013a892x");
        }