public void SetUp()

        {
            _userMap          = new Mock <IUserMapService>();
            userMapService    = new UserMapService();
            userMapDictionary = new ConcurrentDictionary <string, HashSet <ConnectionDTO> >();
        }
        public void CreateNotificationConnectionManager_IsNotNull()
        {
            //Arrange

            //Act
            var result = new UserMapService();

            //Assert
            Assert.IsNotNull(result);
            Assert.IsInstanceOf <UserMapService>(result);
        }