public void TestAddToSeenIds()
        {
            mockConversationRepository.Setup(x => x.AddToSeenIds(It.IsAny <string>(), It.IsAny <string>())).Returns(true);
            var  chatService       = new ChatService.Services.ChatService(mockConversationRepository.Object, mockMessageRepository.Object);
            bool checkAddToSeenIds = chatService.AddToSeenIds("asf6af5asf4s4af3afa5f", "asf6af5asf4s4af3afa5f");

            Assert.IsTrue(checkAddToSeenIds);
        }